Fragrance compositions with controllable odor profiles

Abstract

Fragrance compounds, accord compositions, and fragrance compositions with a controllable odor profile are provided. The accord compositions and fragrance compositions include odor character modifying compounds and facilitator compounds. Methods of controlling the odor of said compounds and compositions are also provided. In said methods, a user experiences a first odor profile when the compounds or compositions are set at a first temperature. At a second temperature, a user experiences a second odor profile of the same compounds or compositions.

Description

[0001] FRAGRANCE COMPOSITIONS WITH CONTROLLABLE

[0002] ODOR PROFILES

[0003] CROSS-REFERENCE TO RELATED APPLICATIONS

[0004] This application claims the benefit of priority to United States Provisional Application Serial No. 63 / 650,858, filed May 22, 2024, the contents of which are incorporated by reference in its entirety herein.

[0005] 1. FIELD

[0006] The presently disclosed subject matter relates to fragrance compounds, and fragrance compositions containing the same, having a controllable odor profile. Specifically, the odor profile is modified by a user, upon a change in temperature setting. When set at a first temperature, a user experiences a first odor profile of a fragrance composition. When set at a second temperature, a user experiences a second odor profile of the same fragrance composition.

[0007] 2. BACKGROUND

[0008] Air freshener consumer products are widely available on the market. These products use a variety of techniques to deliver fragrance, such as diffusion or heating. Air fresheners that use a heating element allow consumers to manually adjust the strength or intensity of the fragrance by increasing or decreasing heat of the air freshener. For example, as temperature increases, the additional energy from the heat facilitates transition of more of the volatile fragrance compounds into the gas phase, thereby increasing the odor strength. These consumer products simply leverage the boiling points of various volatile fragrance compounds; though, limiting the change only to the strength or intensity of the single odor profile, not a change in the odor itself.

[0009] Heating elements in air care devices have limited impact on the fragrances being emitted. The temperatures that are applied are below any level where fragrance compositions undergo decomposition. Therefore, the odor profile is limited to strength and intensity. If a device were to exceed current temperature targets, fragrance compositions could undergo a chemical change, resulting in an odor profile change that is irreversible.

[0010] There remains a need in the art for the ability to select fragrance compounds that are stable under heating conditions, without decomposition. The current disclosure addresses this need with fragrance accord compositions having controllable odor character profiles. 3. SUMMARY

[0011] The purpose and advantages of the disclosed subject matter will be set forth in and are apparent from the description that follows, as well as will be learned by practice of the disclosed subject matter. Additional advantages of the disclosed subject matter will be realized and attained as pointed out in the written description and claims hereof.

[0012] To achieve these and other advantages and in accordance with the purpose of the disclosed subject matter, as embodied and broadly described, the presently disclosed subject matter provides an odor character modifying accord composition comprising at least one odor character modifying fragrance compound in an amount of from about 0.1% to about 70% by weight of the accord composition, and at least one facilitator compound in an amount of from about 30% to about 99.9% by weight of the accord composition, wherein the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.001 Torr to about 20 Torr at 50 °C and of from about 0.05 Torr to about 65 Torr at 80 °C.

[0013] In certain embodiments, the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.005 Torr to about 17 Torr at 50 °C and of from about 0.01 Torr to about 60 Torr at 80 °C. In particular embodiments, the logarithm difference of the odor character modifying fragrance compounds is from about 0.5 to about 1.4. In certain embodiments, the enthalpy of vaporization of the at least one odor character modifying fragrance compounds is from about 20 KJ / mol to about 120 KJ / mol. In particular embodiments, the odor detection threshold of the at least one odor character modifying fragrance compounds is from about 0.0001 ng / L to about 4 ng / L.

[0014] In certain embodiments, the at least one odor character modifying fragrance compound is selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethy lnaphtho[2, 1 -b]furan. eugenol, 6,6-dimethoxy-2,5,5- trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyljpyrazine, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3- phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0015] In particular embodiments, the at least one facilitator compound is selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2, 5,8,8, 9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, coumarin, gammanonalactone, (4-tert-butylcyclohexyl) acetate, hexyl acetate, vetiver Haiti, 2-methylundecanal, and combinations thereof.

[0016] In particular embodiments, the odor character modifying accord composition further comprises additional fragrance compounds. In certain embodiments, the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more floral compound(s), one or more fruity compound(s), one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s). one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof.

[0017] In particular embodiments, the odor character modifying accord composition further comprises at least one base, solvent, or combinations thereof.

[0018] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modifyring compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and eugenol and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-I,3-dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate.

[0019] In particular embodiments, the odor character modifying accord composition comprises the odor character modifying compound l-(2,6.6-trimethyl-3-cyclohexen-l-yl)-2- buten-I-one and at least one facilitator compound selected from the group consisting of selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one, and hexyl acetate.

[0020] In particular embodiments, odor character modifying accord composition comprises at least one odor character modifying compound selected from the group consisting of 1 -(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate. In particular embodiments, odor character modifying accord composition comprises the odor character modifying compound dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l- b] furan and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, ethyl maltol, and hexyl acetate.

[0021] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l -b]furan and l-(l ,2,3,4,5,6,7,8-octahydro- 2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2.2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-I.3-dioxole, coumarin, ethyl maltol, lemon oil, methyl 2.4-dihydroxy- 3,6-dimethylbenzoate, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate.

[0022] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a.6.6.9a-tetramethylnaphtho[2, 1 -b]furan, 2,4-dimethyl-4- phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4- dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, (4-tert- butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal.

[0023] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of 4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a.9-methanozuleno[5,6-d]-I,3- dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate. (4-tert- butylcyclohexyl) acetate, and 2-methylundecanal.

[0024] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modify ing compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, ethyl 3-phenyloxirane-2- carboxylate, 2,4-dimethyl-4-phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R.7aS,9R)-octahydro-2,2.5.8.8.9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-di oxole, coumarin, ethyl maltol, gamma-nonalactone, and (4-tert- butyl cyclohexyl) acetate.

[0025] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecanal, l-(2.6.6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and 1- (l ,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, methyl 2,4- dihydroxy-3.6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma- nonalactone, and hexyl acetate.

[0026] In particular embodiments, the odor character modifying accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, dodecanal, 2,4-dimethyl-4- phenyltetrahydrofuran. eugenol, dicyclopentadiene propionate, 1-(1, 2,3,4, 5.6.7.8-octahydro- 2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2,2.5.8.8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-I.3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4-tert- butyl cyclohexyl) acetate, and hexyl acetate.

[0027] The present disclosure further provides a fragrance composition comprising the odor character modifying accord composition.

[0028] In particular embodiments, the fragrance composition further comprises additional fragrance compounds. In certain embodiments, the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more flor, al compound(s), one or more fruity compound(s), one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s), one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof.

[0029] In particular embodiments, the fragrance composition further comprises at least one base, solvent, or combinations thereof.

[0030] The present disclosure further provides a consumer product comprising the odor character modifying accord composition or the fragrance composition.

[0031] The present invention further provides a consumer product, wherein the consumer product controls the odor character profde of a fragrance composition, wherein odor character profile is controlled by heating the fragrance composition to a first temperature, wherein a first odor is provided, and heating the fragrance composition to a second temperature, wherein a second odor is provided, wherein the fragrance composition comprises an odor character modifying accord composition comprising at least one odor character modifying fragrance compound and at least one facilitator compound.

[0032] The present invention further provides a method of controlling the odor character profile of an accord composition, comprising heating the accord composition to a first temperature, wherein at the first temperature the accord composition provides a first odor, and heating the accord composition to a second temperature, wherein at the second temperature the accord composition provides a second odor, wherein the accord composition comprises at least one odor character modifying fragrance compound and at least one facilitator compound.

[0033] It is to be understood that both the foregoing general description and the following detailed description and drawings are examples and are provided for purpose of illustration and not intended to limit the scope of the disclosed subject matter in any manner.

[0034] 4. DETAILED DESCRIPTION

[0035] Odor character modifying fragrance compounds exhibiting a temperature dependent odor character profile and accord compositions are provided herein. Such accord compositions advantageously demonstrate an odor character modification as the temperature changes. These and other aspects of the disclosed subject matter are discussed in more detail.

[0036] For clarity and not by way of limitation, this detailed description is divided into the following sub-portions:

[0037] 4.1 Definitions;

[0038] 4.2 Odor Character Modifying Fragrance Compounds;

[0039] 4.3 Accord Compositions; 4.4 Fragrance Compositions; and

[0040] 4.5 End Use in Consumer Products.

[0041] 4.1. Definitions

[0042] The terms used in this specification generally have their ordinary meanings in the art, within the context of this disclosure and in the specific context where each term is used. Certain terms are discussed below, or elsewhere in the specification, to provide additional guidance to the practitioner in describing the compositions and methods of the disclosure and how to make and use them.

[0043] As used herein, the use of the word “a’' or "an" when used in conjunction with the term “comprising’7in the claims and / or the specification can mean “one,” but it is also consistent with the meaning of “one or more,” “at least one,” and “one or more than one.”

[0044] Still further, the terms “having,” “including,” “containing”, and “comprising” are interchangeable and one of skill in the art is cognizant that these terms are open ended terms.

[0045] The term “about” or “approximately” means within an acceptable error range for the particular value as determined by one of ordinary skill in the art, which will depend in part on how the value is measured or determined, i.e., the limitations of the measurement system. For example, “about” can mean within three or more than three standard deviations, per the practice in the art. Alternatively, “about” can mean a range of up to 20%, preferably up to 10%, more preferably up to 5%, and more preferably still up to 1% of a given value. Alternatively, particularly with respect to biological systems or processes, the term can mean within an order of magnitude, preferably within five-fold, and more preferably within two-fold, of a value.

[0046] As used herein, the term “accord” refers to a composition that can contain one or more different fragrance compounds that create a specific smell, odor, aroma, or scent. One or more “accords” can be utilized as part of a fragrance composition, or alternatively can make up the entire fragrance composition. Accordingly, an accord or fragrance composition can be used in an end product, such as an air care device.

[0047] As used herein, the term “odor detection threshold” refers to the lowest concentration of a fragrance compound at which a human can detect the odor.

[0048] As used herein, the term “odor intensity” or “odor strength” refers to the strength or intensity of a smell, odor, aroma, or scent.

[0049] As used herein, the term “odor character modification” refers to a change in odor character or odor profile of a compound, accord, or fragrance composition. The odor character modification occurs independently of a change in odor intensity or strength. In certain embodiments, the odor character modification can be subtle. In certain embodiments, the odor character modification can be prominent. In certain embodiments, the odor character modification is dependent on a temperature change.

[0050] As used herein, the phrase ‘'consumer product” or ‘'end product” refers to product that is in a form ready for use by the consumer for the marketed indication.

[0051] 4.2. Odor Character Modifying Fragrance Compounds

[0052] The presently disclosed subject matter provides fragrance compounds having an odor character modification as the temperature of the fragrance compound changes. Properties such as the vapor pressure at a first and second temperatures, the logarithmic difference between vapor pressures at first and second temperatures, the enthalpy of vaporization, and the odor detection threshold of the fragrance compounds are used independently and in various combinations to indicate the presence of such an odor character modification.

[0053] Fragrance compounds exhibiting an odor character modification are referred to herein as “odor character modifying fragrance compounds”, or “odor character modifying compounds”, or “odor character fragrance modifiers”, or "fragrance compound modifiers”, or the like. One or more odor character modifying fragrance compounds can be used in the fragrance accords. These odor modifying fragrance compounds exhibit a modification in their odor character or odor profile when tested at different temperatures. This odor character modification is independent of the odor intensity. Odor intensity relates to the strength of an odor profile of a compound as the concentration of the compound increases or decreases in the gaseous phase. When the intensify or strength of an odor changes, the odor profile can remain unchanged.

[0054] By way of a non-limiting example, an odor character modifying fragrance compound can have an odor profile of “very clove” at 50 °C, and an odor profile of “very metallic” at 80 °C. In addition, as disclosed herein, the compound or combination of compounds have an odor profile that will modify with repeated temperature changes. For example, the compound or combination of compounds can have a first odor profile at a first temperature and a second odor profile at a second temperature. If the compound or combination of compounds is returned to the first temperature after heating to the second temperature, the compound or combination of compounds will revert back to the first odor profile. Further examples of odor character modifying fragrance compounds are provided herein.

[0055] Non-limiting examples of odor character modifying fragrance compounds include 1- (2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-I-one, I-(I,2,3,4,5,6,7,8-octahydro-2,3,8,8- tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l- b]furan, eugenol, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene. 2,4-dimethyl-4- phenyltetrahydrofuran, 2-methoxy-3-(2-methylpropyl)pyrazine, ethyl 2-methylpentanoate, coumarin, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, or (4S)-4,8-dimethyl non-7-en-2-ol.

[0056] As disclosed herein, one or more odor character modifying fragrance compounds can be used in accord compositions. In particular embodiments, the one or more odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl- 3-cyclohexen-l-yl)-2-buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, eugenol, 6,6- dimethoxy-2,5.5-trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyl)pyrazine, ethyl 2-methylpentanoate, coumarin, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol), and combinations thereof. In particular embodiments, at least one to at least thirteen odor character modifying fragrance compounds can be used in accord compositions.

[0057] In certain embodiments, the one or more odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethy lnaphtho[2, 1 -b]furan, eugenol, 6,6-dimethoxy-2,5,5- trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyl)pyrazine, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3- phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0058] In certain embodiments, the odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydroSa, 6,6, 9a-tetramethylnaphtho[2,l-b]furan, eugenol, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, and combinations thereof.

[0059] 4.2.1. Properties of Fragrance Compounds

[0060] Various thermodynamic properties of fragrance compounds can be used to determine whether an odor character modification of the odor profile is observed between a first and a second temperature. Thermodynamic properties can include, but are not limited to, vapor pressure, the logarithmic difference between vapor pressures at first and second temperatures. and enthalpy of vaporization.

[0061] Additional properties of fragrance compounds can be evaluated to assess odor character modification. These properties can include concentrations, odor detection thresholds, and structural features of the fragrance compounds.

[0062] The thermodynamic property7vapor pressure can be evaluated to determine the odor character modification of a fragrance compound. In particular, vapor pressure at a first and second temperature can be used to indicate whether odor character modification can be observed. Vapor pressure can be calculated using known computational measurements or measured using know n techniques in the art. In particular embodiments, the vapor pressure is calculated using known computational measurements, including for example, from a software package such as ACD / Labs vl 1.02.

[0063] Vapor pressure can also be assessed across a range of temperatures. In particular embodiments, the vapor pressure is calculated at a first and a second temperature selected at any two temperatures between about 20 °C and about 150 °C, about 20 °C and about 120 °C, about 20 °C and about 100 °C, about 20 °C and about 90 °C, about 20 °C and about 80 °C, about 20 °C and about 70 °C. about 20 °C and about 60 °C, about 20 °C and about 50 °C, about 20 °C and about 40 °C, and about 20 °C and about 30 °C. In other embodiments, the vapor pressure is calculated at a first and a second temperature selected at any two temperatures between about 30 °C and about 150 °C, about 30 °C and about 120 °C, about 30 °C and about 100 °C, about 40 °C and about 100 °C. about 50 °C and about 100 °C, about 60 °C and about 100 °C, about 70 °C and about 100 °C, about 80 °C and about 100 °C, about 90 °C and about 100 °C. In other embodiments, the vapor pressure is calculated at a first and a second temperature selected at any two temperatures between about 40 °C and about 150 °C, about 50 °C to about 150 °C, about 60 °C to about 150 °C. about 70 °C to about 150 °C, about 80 °C to about 150 °C, about 90 °C to about 150 °C, about 100 °C to about 150 °C, about 40 °C to about 120 °C, about 50 °C to about 120 °C, about 60 °C to about 120 °C, about 70 °C to about 120 °C, about 80 °C to about 120 °C, about 90 °C to about 120 °C, or about 100 °C to about 120 °C. In certain embodiments, the vapor pressure is calculated at a first and a second temperature selected at any two temperatures between about 30 °C and about 90 °C, 40 °C and about 90 °C. about 50 °C and about 90 °C, about 60 °C and about 90 °C, about 70 °C and about 90 °C, about 80 °C and about 90 °C, about 30 °C and about 80 °C, about 40 °C and about 80 °C, about 50 °C and about 80 °C, about 60 °C and about 80 °C, about 70 °C and about 80 °C, about 30 °C and about 70 °C, about 40 °C and about 70 °C, about 50 °C and about 70 °C, about 60 °C and about 70 °C, about 30 °C and about 60 °C, about 40 °C and about 60 °C, about 50 °C and about 60 °C, about 30 °C and about 50 °C, about 40 °C and about 50 °C, and about 30 °C and about 40 °C. In a particular embodiment, the vapor pressure is calculated at a first and a second temperature selected at any two temperatures between about 50 °C and about 80 °C.

[0064] In particular embodiments, the vapor pressure is calculated at a first and a second temperature selected from any temperature greater than about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 50 °C, about 60 °C, or about 70 °C and less than about 50 °C, about 55 °C, about 60 °C, about 62 °C about 70 °C, about 72 °C, about 75 °C, about 80 °C, about 90 °C, about 100 °C, about 120 °C or about 150 °C. In certain embodiments, the vapor pressure is calculated at a first and a second temperature each independently selected from the group consisting of about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 45 °C, about 50 °C, about 55 °C, about 60 °C, about 62 °C, about 65 °C, about 70 °C, about 72 °C, about 75 °C, about 80 °C, about 85 °C, about 90 °C, about 95 °C, about 100 °C, about 110 °C, about 120 °C, about 130 °C, about 140 °C, and about 150 °C. In a particular embodiment, vapor pressure of the fragrance compounds is calculated at about 50 °C and at about 80 °C.

[0065] As disclosed herein, the vapor pressures of the odor character modifying fragrance compounds of the present disclosure have a vapor pressure of from about 0.005 Torr to about 7 Torr, from about 0.01 to about 6 Torr, or from about 0.015 to about 3.5 Torr at 50 °C. In alternative embodiments, the odor character modifying fragrance compounds of the present disclosure have a vapor pressure of from about 0.001 Torr to about 20 Ton, from about 0.005 Torr to about 17 Torr, from about 0.01 Torr to about 15 Torr, from about 0.01 Ton to about 0.5 Ton, or from about 1 Torr to about 15 Ton at 50 °C. In particular embodiments, the odor character modifying fragrance compounds of the present disclosure have a vapor pressure of from about 0.02 to about 0.05 Ton, from about 0.025 to about 0.075 Torr, from about 0.06 to about 0. 10 Torr, from about 0.08 to about 0. 12 Ton, from about 0. 10 to about 0. 15 Ton, from about 0.16 to about 0.22 Ton, from about 0.25 to about 0.35 Torr, from about 0.30 to about 0.40 Ton, from about 0.35 to about 0.45 Torr, from about 3.10 to about 3.25 Torr, or from about 12.5 to about 13.5 Ton at 50 °C.

[0066] In certain embodiments, the odor character modifying fragrance compounds of the present disclosure have a vapor pressure of from about 0.1 Ton to about 30 Ton, from about 0.15 Torr to about 25 Ton, or from about 0.20 Ton to about 20 Torr at 80 °C. In alternative embodiments, the odor character modifying fragrance compounds have a vapor pressure of from about 0.05 Torr to about 65 Torr, from about 0.01 Ton to about 60 Torr, from about 0.015 to about 55 Ton, from about 0.05 Torr to about 1.2 Ton, from about 1.2 Ton to about 5 Torr, from about 5 Torr to about 20 Torr, or from about 40 Torr to about 60 Torr at 80 °C. In certain embodiments, the odor character modifying fragrance compounds of the present disclosure have a vapor pressure of from about 0.1 to about 0.5 Torr, from about 0.5 to about 0.8 Torr, from about 0.6 to about 0.9 Torr, from about 0.8 to about 1.2 Torr, from about 0.9 to about 1.3 Torr, from about 2.15 to about 2.3 Torr, from about 3.0 to about 3.3 Torr, from about 3.5 to about 3.8 Torr, from about 4.15 to about 4.5 Torr, from about 15.0 Torr to about 17.0 Torr, or from about 53.0 to about 56.0 Ton at 80 °C.

[0067] The vapor pressure of the compounds at a first and second temperature can further be evaluated by determining the difference in the logarithm of the vapor pressure at the first and second temperatures. In certain embodiments, the logarithm difference can be calculated as follows: log difference = log(VPT2) — log (VPT1) where VPTI is the vapor pressure at the first temperature (Tl) and VPT2 is the vapor pressure at the second temperature (T2). In certain embodiments, the logarithm difference of the fragrance compounds can be from about 0.5 to about 1.4, from about 0.6 to about 1.3, or from about 0.7 to about 1.2. In alternative embodiments, the logarithm difference of the fragrance compounds can be from about 0.4 to about 1.4, from about 0.4 to about 1.0; alternatively, from about 1.0 to about 1.4. In certain embodiments, the second temperature (T2) is greater than the first temperature (Tl). In alternative embodiments, the first temperature (Tl) is greater than the second temperature (T2).

[0068] Another thermodynamic property that can be used to determine an odor character modification is the enthalpy of vaporization. The enthalpy of vaporization, or heat of vaporization, is the energy needed to vaporize 1 mol of a liquid. (Zumdhal, S. S., et al. Chemistry, 8thed.; Brooks / Cole Cengage Learning, 2010.). This can be used to determine whether an odor character modification is observed. The vapor pressure of the fragrance compounds can be used to calculate enthalpy of vaporization using the Clausius Clapeyron equation, as follows: which is alternatively written as follows: where the first vapor pressure (Pi) is the vapor pressure of the fragrance compound at 25 °C (Ti) and the second vapor pressure (P2) is the vapor pressure at 20 °C (T2), and where R is 8.314 J mol1K1(physics.nist.gov / cgi-bin / cuu / Value?r). In certain embodiments, the enthalpy of vaporization is from about 20 KJ / mol to about 120 KJ / mol, from about 40 KJ / mol to about 100 KJ / mol, from about 45 KJ / mol to about 95 KJ / mol, or from about 50 KJ / mol to about 90 KJ / mol.

[0069] An additional property of fragrance compounds that can be assessed is the odor detection threshold of the compound, which measures the lowest concentration of a compound that can be detected by a human. Various methodologies exist in the art for determining odor detection threshold, including without limitation, through sensory dilution methods or olfactometry. Typical odor detection threshold values range from less than 0.0001 mg / mL to more than 10,000 mg / mL. In comparison, the odor character modifying fragrance compounds of the present disclosure have an advantageously low odor detection threshold. In fact, the odor character modifying fragrance compounds have an odor detection threshold of less than about 2 ng / L or less than about 1.6 ng / L. In certain embodiments, the odor detection threshold is at least about 0.0001 ng / L, at least about 0.0025 ng / L, or at least about 0.0005 ng / L. In particular embodiments, the odor detection threshold is from about 0.0001 ng / L to about 4 ng / L. from about 0.00025 ng / L to about 2 ng / L, from about 0.0005 ng / L to about 2 ng / L, from about 0.00055 ng / L to about 1.6 n / L, from about 0.0005 ng / L to about 0.6 ng / L, or from about 0.6 ng / L to about 1.6 ng / L.

[0070] The measurements of vapor pressure, logarithm difference, odor detection threshold, enthalpy of vaporization, and combinations thereof, as provided herein, can be used to identify odor character modifying fragrance compounds. In particular embodiments, the vapor pressure, logarithm difference, odor detection threshold, and enthalpy of vaporization are used to identify odor character modifying fragrance compounds. Values of these parameters are provided herein.

[0071] 4,2.2. Measuring Odor Character Modifications

[0072] The odor character modifying fragrance compounds have been evaluated to verify' the odor character modification. The modification was verified by evaluating the odor character of the odor character modifying fragrance compound at a first and second temperature. When the odor character of the odor character modifying fragrance compound was different at the first and second temperature, the odor character modifying fragrance compound was confirmed to have an odor character modification.

[0073] An odor character modification is only observed when the odor character modifying fragrance compound is present in amounts above the odor detection threshold. Below the odor detection threshold, the odor character modification will not be observed. The odor character modification is also independent of an odor intensity shift.

[0074] An odor character modification can be observed between any two temperatures, where a first temperature differs from a second temperature. In certain embodiments, the first temperature is greater than the second temperature; in another embodiment, the second temperature is greater than the first temperature. In certain embodiments, the modification can be observed at any point between two temperatures, including the minimum and maximum temperatures provided.

[0075] In particular non-limiting embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 20 °C and about 150 °C, about 20 °C and about 120 °C, about 20 °C and about 100 °C. about 20 °C and about 90 °C, about 20 °C and about 80 °C, about 20 °C and about 70 °C, about 20 °C and about 60 °C, about 20 °C and about 50 °C, about 20 °C and about 40 °C, and about 20 °C and about 30 °C. In other embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 30 °C and about 150 °C, about 30 °C and about 120 °C, about 30 °C and about 100 °C, about 40 °C and about 100 °C. about 50 °C and about 100 °C, about 60 °C and about 100 °C, about 70 °C and about 100 °C, about 80 °C and about 100 °C, about 90 °C and about 100 °C. In certain embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 40 °C and about 150 °C, about 50 °C to about 150 °C, about 60 °C to about 150 °C, about 70 °C to about 150 °C, about 80 °C to about 150 °C, about 90 °C to about 150 °C, about 100 °C to about 150 °C, about 40 °C to about 120 °C, about 50 °C to about 120 °C, about 60 °C to about 120 °C, about 70 °C to about 120 °C, about 80 °C to about 120 °C, about 90 °C to about 120 °C, or about 100 °C to about 120 °C. In certain embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 30 °C and about 90 °C, 40 °C and about 90 °C, about 50 °C and about 90 °C, about 60 °C and about 90 °C, about 70 °C and about 90 °C, about 80 °C and about 90 °C, about 30 °C and about 80 °C, about 40 °C and about 80 °C, about 50 °C and about 80 °C, about 60 °C and about 80 °C. about 70 °C and about 80 °C, about 30 °C and about 70 °C. about 40 °C and about 70 °C, about 50 °C and about 70 °C, about 60 °C and about 70 °C, about 30 °C and about 60 °C, about 40 °C and about 60 °C, about 50 °C and about 60 °C, about 30 °C and about 50 °C, about 40 °C and about 50 °C. In a particular embodiment, the odor character modification is observed between about 50 °C and about 80 °C. In a particular embodiment, the odor character modification is observed between about 25 °C and about 55 °C. In a certain embodiment, the odor character modification is observed between about 35 °C and about 62 °C. In an alternative embodiment, the odor character modification is observed between about 36 °C and about 72 °C.

[0076] In particular embodiments, the first and second temperatures are selected from any temperature greater than about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 50 °C, about 60 °C, or about 70 °C and less than about 50 °C, about 55 °C, about 60 °C, about 62 °C about 70 °C, about 72 °C, about 75 °C, about 80 °C. about 90 °C, about 100 °C, about 120 °C or about 150 °C. In certain embodiments, the odor character modification is observed at a first temperature and a second temperature each independently selected from the group consisting of about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 45 °C, about 50 °C, about 55 °C, about 60 °C, about 62 °C, about 65 °C, about 70 °C, about 72 °C, about 75 °C, about 80 °C, about 85 °C, about 90 °C, about 95 °C, about 100 °C, about 110 °C, about 120 °C, about 130 °C, about 140 °C, and about 150 °C. In particular embodiments, a first temperature is about 25 °C and a second temperature is about 55 °C. In certain embodiments, the first temperature is about 35 °C and the second temperature is about 62 °C. In alternative embodiments, the first temperature is about 36 °C and the second temperature is about 72 °C. In particular embodiments, the first temperature is about 50 °C and the second temperature is about 80 °C. In particular embodiments, a first temperature is about 55 °C and a second temperature is about 25 °C. In certain embodiments, the first temperature is about 62 °C and the second temperature is about 35 °C. In alternative embodiments, the first temperature is about 72 °C and the second temperature is about 36 °C. In particular embodiments, the first temperature is about 80 °C and the second temperature is about 50 °C.

[0077] In certain embodiments, to measure an odor character modification of a single odor character modifying fragrance compound, said compound is dissolved or suspended in one or more solvents or excipients. Any suitable solvent or excipient can be used, such as dipropylene glycol methyl ether acetate (e.g., Dowanol® DPMA). In certain embodiments, the odor character modifying fragrance compound is dissolved or suspended in one or more solvents or excipients in an amount of from about 0.0005% to about 6%. about 0.005% to about 5%, 0.05% to about 4%, from about 0.075% to about 3.5%, or from about 0.1% to about 3% by weight. In particular embodiments, the odor character modifying fragrance compound is dissolved or suspended in dipropylene glycol methyl ether acetate. In certain embodiments, the odor character modifying fragrance compound is dissolved or suspended in about 90% to about 99.9995%, 95% to about 99.99%, about 96% to about 99.95%, or about 97% to about 99.9% by weight solvents or excipients.

[0078] 4.3. Accord Compositions

[0079] As noted above, one or more odor character modifying fragrance compounds can be included in accord compositions. Accord compositions of the present disclosure include one or more odor character modifying fragrance compounds and one or more facilitator compounds.

[0080] 4,3.1. Odor Character Modifying Fragrance Compounds

[0081] The accord compositions of the present disclosure comprise at least one odor character modifying fragrance compound. The accord compositions can include at least one, at least two, at least three, at least four or more odor character modifying fragrance compounds. Alternatively, the accord compositions can include at least five, at least six, at least seven, at least eight or more odor character modifying fragrance compounds. Alternatively, the accord compositions can include at least nine, at least ten, at least eleven, at least twelve, at least thirteen or more odor character modifying fragrance compounds. In particular embodiments, the accord compositions can include at least one to at least thirteen odor character modifying fragrance compounds.

[0082] Non-limiting examples of odor character modify ing fragrance compounds include 1- (2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8- tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l- b]furan, eugenol, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene. 2,4-dimethyl-4- phenyltetrahydrofuran, 2-methoxy-3-(2-methylpropyl)pyrazine, ethyl 2-methylpentanoate, coumarin, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, or (4S)-4,8-dimethyl non-7-en-2-ol.

[0083] In particular embodiments, the one or more odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethy lnaphtho[2, 1 -b]furan, eugenol, 6,6-dimethoxy-2,5,5- trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyl)pyrazine, ethyl 2-methylpentanoate, coumarin, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0084] In certain embodiments, the one or more odor character modifying fragrance compounds are selected from the group consisting of l-(2,6.6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone. dodecahydro-3a,6,6,9a-tetramethy lnaphtho[2, 1 -b]furan, eugenol, 6,6-dimethoxy-2,5,5- trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyl)pyrazine, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3- phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0085] In certain embodiments, the odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, 1- (l ,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydroSa, 6,6, 9a-tetramethylnaphtho[2,l-b]furan, eugenol, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, and combinations thereof.

[0086] 4,3.2. Facilitator Compounds

[0087] One or more facilitator compounds can additionally be included in accord compositions to enhance the odor character modification of the fragrance accord. The facilitator compounds work synergistically with the odor character modifying fragrance compounds to influence the odor character modification of the accord composition. When added to the odor character modifying accord compositions, an odor character modification unexpectedly occurs. In particular embodiments, the accord composition comprising an odor character modifying compound does not have an odor character modification between the first and second temperatures without a facilitator compound, but does have an odor character modification between the first and second temperatures when at least one facilitator compound is included in the accord composition. In certain embodiments, at least one, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, at least nine, at least ten. or at least eleven facilitator compounds is included in the accord composition. In certain embodiments, the accord composition comprises at least one to at least eleven facilitator compounds.

[0088] In alternative embodiments, the one or more facilitator compound is optional in an accord composition.

[0089] Non-limiting embodiments of the facilitator compounds include (4aR,5R.7aS,9R)- octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l ,3-dioxole, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin- 3(4H)-one, coumarin, gamma-nonalactone. (4-tert-butylcyclohexyl) acetate, hexyl acetate, vetiver Haiti. 2-methylundecanal, and combinations thereof.

[0090] The facilitator compounds are selected from (4aR,5R,7aS,9R)-octahydro- 2,2,5.8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, lemon oil, methyl 2.4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l .5-dioxepin-3(4H)-one, coumarin, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, hexyl acetate, vetiver Haiti, 2-methylundecanal, and combinations thereof.

[0091] In alternative embodiments, the facilitator compounds are selected from (4aR.5R,7aS,9R)-octahydro-2.2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, ethyl maltol, lemon oil, methyl 2.4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H- benzo-l ,5-dioxepin-3(4H)-one, coumarin, gamma-nonalactone, (4-tert-butyl cyclohexyl) acetate, hexyl acetate, 2-methylundecanal, and combinations thereof.

[0092] In further embodiments, the facilitator compounds are selected from (4aR.5R,7aS,9R)-octahydro-2.2.5.8.8.9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H- benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, hexyl acetate, 2-methylundecanal, and combinations thereof.

[0093] 4 3 3. Odor Modifying Accord Compositions

[0094] Accord compositions of the present disclosure comprise at least one odor character modifying fragrance compound and at least one facilitator compound.

[0095] As disclosed herein, the accord composition comprises at least one, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, at least nine, at least ten. at least eleven, at least twelve, at least thirteen, or more odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises one, two three, four, five, six, seven, eight, nine, ten, eleven, twelve, thirteen odor character modify ing fragrance compounds. In certain embodiments, the accord composition comprises one to eight odor character modifying fragrance compounds. In certain embodiments, the accord composition comprises nine to thirteen odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises at least one odor character modifying fragrance compound. In particular embodiments, the accord composition comprises at least two odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises at least three odor character modifying fragrance compounds. In certain embodiments, the accord composition comprises at least four odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises at least five odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises at least six odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises at least seven odor character modifying fragrance compounds. In particular embodiments, the accord composition comprises at least eight odor character modifying fragrance compounds.

[0096] In addition to the odor character modifying fragrance compounds, the accord composition additionally comprises at least one, at least two, or at least three facilitator compounds. In alternative embodiments, in addition to the odor character modifying fragrance compounds, the accord composition additionally comprises at least four, at least five, or at least six. at least seven, at least eight, at least nine, or at least ten, at least eleven facilitator compounds. In certain embodiments, the accord composition comprises one to eleven facilitator compounds. In other embodiments, the accord composition comprises two to eight facilitator compounds. In other embodiments, the accord composition comprises three to nine facilitator compounds.

[0097] In particular embodiments, the accord composition comprises at least one odor character modifying fragrance compound and at least one facilitator compound. In particular embodiments, the accord composition comprises at least two odor character modifying fragrance compounds and at least two facilitator compounds. In particular embodiments, the accord composition comprises at least three odor character modifying fragrance compounds and at least three facilitator compounds. The combination of compounds can include one to thirteen modifying fragrance compounds with one to ten facilitator compounds. In certain embodiments, the combination of compounds can include one to eight modifying fragrance compounds with three to nine facilitator compounds.

[0098] In particular embodiments, the accord composition comprises at least about two odor character modifying fragrance compounds and at least about five facilitator compounds. In particular embodiments, the accord composition comprises at least about one odor character modifying fragrance compounds and at least about four facilitator compounds. In particular embodiments, the accord composition compnses at least about three odor character modifying fragrance compounds and at least about five facilitator compounds. In particular embodiments, the accord composition comprises at least about one odor character modifying fragrance compounds and at least about three facilitator compounds. In particular embodiments, the accord composition comprises at least about two odor character modifying fragrance compounds and at least about eight facilitator compounds. In particular embodiments, the accord composition comprises at least about seven odor character modifying fragrance compounds and at least about nine facilitator compounds. In particular embodiments, the accord composition comprises at least about four odor character modifying fragrance compounds and at least about six facilitator compounds. In particular embodiments, the accord composition comprises at least about five odor character modifying fragrance compounds and at least about five facilitator compounds. In particular embodiments, the accord composition comprises at least about four odor character modifying fragrance compounds and at least about six facilitator compounds. In particular embodiments, the accord composition comprises at least about eight odor character modifying fragrance compounds and at least about eight facilitator compounds.

[0099] In particular embodiments, the accord composition comprises two odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises one odor character modify ing fragrance compounds and four facilitator compounds. In particular embodiments, the accord composition comprises three odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises one odor character modifying fragrance compounds and three facilitator compounds. In particular embodiments, the accord composition comprises two odor character modifying fragrance compounds and eight facilitator compounds. In particular embodiments, the accord composition comprises seven odor character modifying fragrance compounds and nine facilitator compounds. In particular embodiments, the accord composition comprises four odor character modifying fragrance compounds and six facilitator compounds. In particular embodiments, the accord composition comprises five odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises four odor character modifying fragrance compounds and six facilitator compounds. In particular embodiments, the accord composition comprises eight odor character modifying fragrance compounds and eight facilitator compounds.

[0100] In certain embodiments, the accord composition comprises from about 40% to about 99%, about 50% to about 80%, about 55% to about 70%, about 60% to about 66%, or about 62.5% to about 65% of odor character modifying fragrance compounds, by weight of the accord composition. In alternative embodiments, the accord composition comprises from about 0.1% to about 70%, from about 0.5% to about 60%. from about 1% to about 55%, from about 1% to about 12%. or from about 20% to about 55% of odor character modifying fragrance compounds by weight of the accord composition.

[0101] In particular embodiments, the accord composition comprises from about 0.1% to about 70%, from about 0.5% to about 60%, from about 1% to about 55%, from about 1% to about 12%. or from about 20% to about 55% of odor character modifying fragrance compounds by weight of the accord composition, and from about 30% to about 99.9%, about 40% to about 99.5%, about 45% to about 99%, about 45% to about 70%, or about 70% to about 99% of facilitator compounds, by weight of the accord composition.

[0102] In certain embodiments, the accord composition comprises greater than about 1%, about 5%, about 10%, about 20%, about 30%, about 40%, about 55%, about 60%, about 62%, about 63%, or about 64%, or less than about 60%, about 55%, about 50%, about 40%, about 30%, about 20%. about 10%, or about 5% of odor character modifying fragrance compounds, by weight of the accord composition.

[0103] In certain embodiments, the accord composition comprises two odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises at least one or at least two odor character modifying compound selected from the group consisting of dodecahydro-3a, 6.6.9a- tetramethylnaphtho[2,l-b]furan and eugenol and at least one, at least two, at least three, at least four, or at least five facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate. In particular embodiments, the accord composition comprises odor character modifying fragrance compounds dodecahydro- 3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and eugenol and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate. In certain embodiments, the accord composition comprises about 1% to about 15%. about 2% to about 10%. or about 4% to about 8% of odor character modifying fragrance compounds by weight of the accord composition, by weight of the accord composition and about 85% to about 99.9%, about 88% to about 98%, or about 90% to about 96% of facilitator compounds by weight of the accord composition.

[0104] In particular embodiments, the accord composition comprises one odor character modifying compound and four facilitator compounds. In certain embodiments, the accord composition comprises the odor character modifying compound l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one and at least one, at least two, at least three, or at least four facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, methyl 2,4-dihydroxy- 3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying compound l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin- 3(4H)-one, and hexyl acetate. In particular embodiments, the accord composition comprises about 0.1% to about 20%, 1% to about 15%, about 2% to about 10%, or about 3% to about 7% of odor character modifying fragrance compounds by weight of the accord composition and about 80% to about 99.9%, about 85% to about 99%, or about 92% to about 98% of facilitator compounds by weight of the accord composition.

[0105] In certain embodiments, the accord composition comprises three odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises at least one, at least two, or at least three, character modifying compounds selected from the group consisting of l-(2.6.6-trimethyl-3-cyclohexen- l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate. and at least one, at least two, at least three, at least four, or at least five facilitator compounds selected from the group consisting of coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate. In particular embodiments, the accord composition comprises the odor character modifying fragrance compounds ethyl 3-phenyloxirane-2-carboxylate, l-(2,6.6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, eugenol, and ethyl 2-methylpentanoate, and the facilitator compounds coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate. In certain embodiments, the accord composition comprises about 20% to about 60%, about 30% to about 55%, or about 35% to about 45% of odor character modifying fragrance compounds by weight of the accord composition and about 25% to about 80%, about 35% to about 70%, or about 50% to about 65% of facilitator compounds by weight of the accord composition.

[0106] In certain embodiments, the accord composition comprises one odor character modifying compound and three facilitator compounds. In particular embodiments, the accord composition comprises one odor character modifying compound dodecahydro-3 a, 6.6.9a- tetramethylnaphtho|2,l-bjfuran and at least one, at least two, or at least three facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying compound dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, and hexyl acetate. In particular embodiments, the accord composition comprises from about 0.1% to about 10%, about 0.25% to about 8%, or about 0.5% to about 4% of odor character modifying fragrance compounds by weight of the accord composition and from about 85% to about 99.9%, about 90% to about 99.5%, or about 95% to about 99% of facilitator compounds by weight of the accord composition.

[0107] In particular embodiments, the accord composition comprises two odor character modifying fragrance compounds and eight facilitator compounds. In certain embodiments, the accord composition comprises at least one or at least two odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan and l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone and at least one, at least two. at least three, at least four, at least five, at least six, at least seven, or at least eight facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy- 3,6-dimethylbenzoate, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate. In particular embodiments, the accord composition comprises from about 0.1% to about 10%, about 0.25% to about 8%, or about 0.5% to about 4% by weight of odor character modifying fragrance compounds and from about 85% to about 99.9%, about 90% to about 99.5%, or about 95% to about 99% of facilitator compounds by weight of the accord composition.

[0108] In particular embodiments, the accord composition comprises seven odor character modifying fragrance compounds and nine facilitator compounds. In certain embodiments, the accord composition comprises at least one, at least two at least three, at least four, at least five, at least six. or at least seven odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, 2,4-dimethyl-4- phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate, and at least one, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, or at least nine facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, methyl 2.4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin- 3(4H)-one. (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal. In particular embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, 2,4-dimethyl-4- phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, 1- (l,2,3,4,5,6,7,8-octahydro-2.3.8.8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate, and the facilitator compounds (4aR,5R,7aS.9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate. 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one, (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal. In certain embodiments, the accord composition comprises from about 5% to about 40%, about 10% to about 30%, or about 15% to about 25% by weight of odor character modifying fragrance compounds and from about 60% to about 99%, about 70% to about 95%, or about 75% to about 90% of facilitator compounds by weight of the accord composition.

[0109] In particular embodiments, the accord composition comprises four odor character modifying fragrance compounds and six facilitator compounds. In certain embodiments, the accord composition comprises at least one, at least two, at least three, or at least four odor character modifying fragrance compounds selected from the group consisting of dodecanal, 1- (2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and at least one, at least two, at least three, at least four, at least five, and at least six facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-1.3-dioxole, coumarin, ethyl maltol, methyl 2,4- dihydroxy-3.6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate, and 2-methylundecanal. In certain embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and the facilitator compounds (4aR,5R.7aS,9R)- octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate, and 2-methylundecanal. In particular embodiments, the accord composition comprises from about 1% to about 50%, about 10% to about 40%, or about 15% to about 30% of odor character modifying fragrance compounds by weight of the accord composition and from about 50% to about 90%, about 60% to about 85% or from about 70% to about 80% of facilitator compounds by weight of the accord composition.

[0110] In certain embodiments, the accord composition comprises five odor character modifying compounds and five facilitator compounds. In particular embodiments, the accord composition comprises at least one, at least two. at least three, at least four, or at least five odor character modifying fragrance compounds selected from the group consisting of dodecahydroSa, 6,6, 9a-tetramethylnaphtho[2,l-b]furan, ethyl 3-phenyloxirane-2-carboxylate, 2,4-dimethyl- 4-phenyltetrahydrofuran. l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, and ethyl 2- methylpentanoate, and at least one, at least two, at least three, at least four, or at least five facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5.8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, gamma-nonalactone. and (4-tert-butylcyclohexyl) acetate. In particular embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecahydro-3a,6,6,9a-tetramethylnaphtho[2, 1 -b]furan, ethyl 3-phenyloxirane-2-carboxylate, 2,4-dimethyl-4-phenyltetrahydrofuran, 1 -(2,6,6-trimethyl-3-cyclohexen-l -yl)-2-buten-l -one, and ethyl 2-methylpentanoate, and the facilitator compounds (4aR,5R,7aS,9R)-octahydro- 2,2,5,8.8.9a-hexamethyl-4H-4a,9-methanozuleno[5.6-d]-l,3-dioxole. coumarin, ethyl maltol, gamma-nonalactone, and (4-tert-butylcyclohexyl) acetate. In particular embodiments, the accord composition comprises from about 1% to about 25%, about 5% to about 20%, or about 8% to about 15% of odor character modifying fragrance compounds by weight of the accord composition and from about 70% to about 99%, about 80% to about 98%, or about 85% to about 95% of facilitator compounds by weight of the accord composition.

[0111] In particular embodiments, the accord composition comprises four odor character modifying fragrance compounds and six facilitator compounds. In certain embodiments, the accord composition comprises at least one. at least two, at least three, or at least four odor character modifying fragrance compounds selected from the group consisting of dodecanal, 1- (2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and l-(l,2,3,4,5,6,7,8-octahydro- 2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and at least one, at least two, at least three, at least four, at least five, or at least six facilitator compounds selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2.2.5.8.8.9a-hexamethyl-4H-4a,9-methanozuleno[5.6-d]-I,3- dioxole, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5- dioxepin-3(4H)-one, gamma-nonalactone, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol. and 1-(1,2,3,4,5,6,7,8- octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5- dioxepin-3(4H)-one, gamma-nonalactone. and hexyl acetate. In particular embodiments, the accord composition comprises from about 25% to about 75%, about 30% to about 70%, or about 45% to about 60% of odor character modifying fragrance compounds by weight of the accord composition and from about 25% to about 75%, about 30% to about 70%, or about 45% to about 60% of facilitator compounds by weight of the accord composition.

[0112] In particular embodiments, the accord composition comprises eight odor character modifying fragrance compounds and eight facilitator compounds. In certain embodiments, the accord composition comprises at least one. at least two, at least three, at least four, at least five, at least six, at least seven, or at least eight odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, dodecanal, 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, di cyclopentadiene propionate, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate and at least one. at least two, at least three, at least four, at least five, at least six. at least seven, or at least eight facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy- 3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4- tert-butylcyclohexyl) acetate, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecahydro- 3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, dodecanal, 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, dicyclopentadiene propionate, 1-(1, 2, 3, 4, 5,6,7, 8-octahydro-2, 3,8, 8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, and ethyl 2- methylpentanoate and the facilitator compounds (4aR,5R.7aS,9R)-octahydro-2,2,5.8.8.9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, methyl 2,4- dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma- nonalactone, (4-tert-bufylcyclohexyl) acetate, and hexyl acetate. In particular embodiments, the accord composition comprises from about 10% to about 60%. about 20% to about 40%, or about 30% to about 35% of odor character modifying fragrance compounds by weight of the accord composition and from about 40% to about 85%, about 50% to about 75%, or from about 60% to about 72% of facilitator compounds by weight of the accord composition.

[0113] The accord compositions can exhibit a temperature dependent odor character profile where the accord composition has a first fragrance at a first temperature and a second fragrance at a second temperature. In particular non-limiting embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 20 °C and about 150 °C, about 20 °C and about 120 °C, about 20 °C and about 100 °C. about 20 °C and about 90 °C, about 20 °C and about 80 °C, about 20 °C and about 70 °C, about 20 °C and about 60 °C, about 20 °C and about 50 °C, about 20 °C and about 40 °C, and about 20 °C and about 30 °C.. In other embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 30 °C and about 150 °C, about 30 °C and about 120 °C, about 30 °C and about 100 °C, about 40 °C and about 100 °C, about 50 °C and about 100 °C, about 60 °C and about 100 °C, about 70 °C and about 100 °C, about 80 °C and about 100 °C, about 90 °C and about 100 °C. In other embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between 40 °C and about 150 °C, about 50 °C to about 150 °C, about 60 °C to about 150 °C, about 70 °C to about 150 °C, about 80 °C to about 150 °C, about 90 °C to about 150 °C, about 100 °C to about 150 °C, about 40 °C to about 120 °C, about 50 °C to about 120 °C, about 60 °C to about 120 °C. about 70 °C to about 120 °C, about 80 °C to about 120 °C. about 90 °C to about 120 °C. or about 100 °C to about 120 °C. In certain embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 30 °C and about 90 °C, 40 °C and about 90 °C, about 50 °C and about 90 °C. about 60 °C and about 90 °C, about 70 °C and about 90 °C, about 80 °C and about 90 °C. about 30 °C and about 80 °C, about 40 °C and about 80 °C, about 50 °C and about 80 °C, about 60 °C and about 80 °C, about 70 °C and about 80 °C, about 30 °C and about 70 °C, about 40 °C and about 70 °C, about 50 °C and about 70 °C, about 60 °C and about 70 °C, about 30 °C and about 60 °C, about 40 °C and about 60 °C, about 50 °C and about 60 °C, about 30 °C and about 50 °C. about 40 °C and about 50 °C. In a particular embodiment, the odor character modification is observed between a first temperature of about 50 °C and a second temperature of about 80 °C. In a particular embodiment, the odor character modification is observed between a first temperature of about 25 °C and a second temperature of about 55 °C. In a certain embodiment, the odor character modification is observed between a first temperature of about 35 °C and a second temperature of about 62 °C. In an alternative embodiment, the odor character modification is observed between a first temperature of about 36 °C and a second temperature of about 72 °C.

[0114] In particular embodiments, the first and second temperatures are selected from any temperature greater than about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 50 °C, about 60 °C, or about 70 °C and less than about 50 °C, about 55 °C, about 60 °C, about 62 °C about 70 °C, about 72 °C, about 75 °C, about 80 °C, about 90 °C, about 100 °C, about 120 °C or about 150 °C. In certain embodiments, the odor character modification is observed at a first temperature and a second temperature each independently selected from the group consisting of about 20 °C. about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 45 °C, about 50 °C, about 55 °C, about 60 °C, about 62 °C, about 65 °C, about 70 °C, about 72 °C, about 75 °C, about 80 °C, about 85 °C, about 90 °C, about 95 °C, about 100 °C, about 110 °C, about 120 °C, about 130 °C, about 140 °C, and about 150 °C. In certain embodiments, the odor character modification is observed at a first and a second temperature selected at any two temperatures between about 40 °C and about 90 °C, about 50 °C and about 90 °C. about 60 °C and about 90 °C, about 70 °C and about 90 °C, about 80 °C and about 90 °C. In particular embodiments, a first temperature is about 25 °C and a second temperature is about 55 °C. In certain embodiments, the first temperature is about 35 °C and the second temperature is about 62 °C. In alternative embodiments, the first temperature is about 36 °C and the second temperature is about 72 °C. In particular embodiments, the first temperature is about 50 °C and the second temperature is about 80 °C.

[0115] 4.4. Fragrance Compositions

[0116] One or more of the accord compositions in the present disclosure can be used in a fragrance composition. The one or more accord compositions can be used alone in the fragrance composition, or can further comprises one or more additional fragrance compounds, and / or one or more bases, solvents, excipients, or combinations thereof. Additionally, in certain embodiments, one or more of the odor character modifying compounds can be used alone or in a fragrance composition. In certain embodiments, one or more of the odor character modifying compounds can be used with one or more facilitator compounds in a fragrance composition. In any of these embodiments where the fragrance composition contains an accord comprising one more odor character modifying compounds and / or one or more facilitator compounds, the fragrance composition can further comprise one or more additional fragrance compounds, and / or one or more bases, solvents, excipients, or combinations thereof.

[0117] 4,4.1. Additional Fragrance Compounds

[0118] As noted herein, the fragrance composition can further include one or more additional fragrance compounds beyond an accord composition, or individual character modifying compounds, or facilitator compounds. In certain embodiments, the accord composition can include additional fragrance compounds.

[0119] In particular embodiments, the fragrance composition comprises from about 1% to about 70%, from about 5% to about 55%, from about 5% to about 25%, from about 25% to about 55%, from about 5% to about 50%, from about 10% to about 30%, or from about 30% to about 50% by weight of additional fragrance compounds.

[0120] The fragrance composition can comprise from one to 250 additional fragrance compounds. In particular embodiments, the fragrance composition comprises at least one, at least two, at least three, at least 5, at least 10, at least 15, at least 20, at least 30, at least 40, at least 50, at least 75, at least 100, at least 125, at least 150, at least 175, at least 200, at least 225, or at least 250 additional fragrance compounds. In particular embodiments, the fragrance composition comprises between one and 250, between 10 and 250, between 25 and 250, between 50 and 250, between 75 and 250, between 100 and 250, between 125 and 250, between 150 and 250. between 175 and 250, between 200 and 250, or between 225 and 250 additional fragrance compounds. In particular embodiments, the fragrance composition comprises between 25 and 225, between 25 and 200, between 50 and 150, between 50 and 125, between 25 and 100, between 25 and 75, between 25 and 50, between 50 and 175, between 50 and 150, between 50 and 125, between 50 and 100, or between 50 and 75 additional fragrance compounds. In particular embodiments, the fragrance composition comprises between 100 and 225, between 100 and 200, between 100 and 150, between 100 and 125, between 150 and 75, between 150 and 50, between 150 and 175, between 200 and 225, or between 200 and 250 additional fragrance compounds. In particular embodiments, the fragrance composition comprises at least one additional fragrance compound. In certain embodiments, the fragrance composition comprises at least two additional fragrance compounds. In certain embodiments, the fragrance composition comprises at least three additional fragrance compounds. In certain embodiments, the fragrance composition comprises at least five additional fragrance compounds. In certain embodiments, the fragrance composition comprises at least ten additional fragrance compounds. In certain embodiments, the fragrance composition comprises at least fifteen additional fragrance compounds.

[0121] These additional fragrance compounds provide additional fragrance to the odor character modifying accord composition, enhancing the overall fragrance of the accord compositions. The fragrance compounds can be categorized into different aroma categories provided below, noting that one more or fragrance compound can be categorized into more than one aroma category.

[0122] These additional fragrance compounds can be selected from various aroma groups known in the art. The aroma groups can be, but are not limited to, one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more floral compound(s), one or more fruity compound(s), one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s), one or more musk compound(s), one or more mint compound(s), one or more pine compound(s). one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof.

[0123] Non-limiting examples of aldehydic compounds include l-methyl-4-(4-methyl-3- pentenyl)cyclohex-3-ene-l-carboxaldehyde, aldehyde C-l l undecylenic, 2,6,10- trimethylundec-9-enal, aldehyde C-10, aldehyde C-8, myrac aldehyde, acetaldehyde C-9, aldehyde C-12. aldehyde supra, cyclomyral trans-2-decenal, trans-4-decenal, cis-4-decenal, 9- decenal, trans-2-dodecenal, undecylenic aldehyde, and l-methyl-4-(4-methylpentyl)cyclohex- 3-ene-l -carbaldehyde.

[0124] Non-limiting examples of animalic compounds include musk methyl propionate, 5- cyclohexadecen-l-one, 17-oxacycloheptadec-6-en-l-one, 2.5,5-trimethyl-l,3,4,4a,6,7- hexahydronaphthalen-2-ol, 2-methyl-5-(5.5.6-trimethylbicyclo[2.2. l]hept-2- yl)cyclohexanone, civet, p-cresol, cresyl methyl ether, indole, and skatole.

[0125] Non-limiting examples of anise compounds include l-methoxy-4-[(E)-prop-l- enyl]benzene, l-(cyclopropylmethyl)-4-methoxybenzene, and anise star.

[0126] Non-limiting examples of balsamic compounds include benzoin, phenyl propyl alcohol, methyl cinnamate, 2-hydroxy benzoic acid 2-(l -methyl ethoxy) ethyl ester, cyclohexyl salicylate, and 3,7,11 -trimethyldodeca- 1, 6,10-trien-3-ol.

[0127] Non-limiting examples of camphoraceous compounds include borneol, bornyl isobutyrate, camphor, fenchone, menthol (e.g., menthol L), and / or rosemary oil.

[0128] Non-limiting examples of citrus compounds include d-limonene. citral, linalyl acetate, citronellyl nitrile, dihydromyrcenol, orange oil, limediene, lime oil terpenes, limonene thiol, terpinyl acetate, citronellal, lime oil, 2,4,6-trimethyl-4-phenyl-l,3-dioxane, dimethyl anthranilate, trans-2-dodcanal. lemongrass oil, delta-3 -carene, L-citronellol, decanal, DH-L- citronellol, myrcenol, limonene, nootkatone, sinensal, bergamot oil, grapefruit oik lemon oil, lime oil, mandarin oil, tridecene-2-nitrile, and yuzu core base.

[0129] Non-limiting examples of floral compounds include hexyl cinnamic aldehyde, 1,3- benzodioxole-5-carbaldehyde, linalool, 4-methyl-2-(2-methylpropyl)oxan-4-ol, (2E)-3,7- dimethylocta-2,6-dien-l-ol, 3-(4-tert-butylphenyl)propanak diphenyl oxide, (6E)-3,7- dimethy Inona- l,6-dien-3-ol, 3-(l,3-benzodioxol-5-yl)-2-methylpropanal, citronellol, 2,4- dimethyl-4,4a,5,9b-tetrahydroindeno[l,2-d][l,3]dioxine, benzjd acetate, 4-(2,6,6- trimethylcyclohexen-l-yl)but-3-en-2-one, methyl 3-oxo-2-penty Icyclopentaneacetate, 2- methyl-3-(4-propan-2-ylphenyl)propanal, phenyl ethyl alcohol, (3-butyl-5-methyloxan-4-yl) acetate. [(2E)-3.7-dimethylocta-2.6-dienyll acetate, methyl 3-oxo-2- pentylcyclopentaneacetate, tetrahydrolinalool, L-cis-rose oxide, 3-(3-propan-2- ylphenyl)butanal, pyranol, phenyl ethyl formate, 7-hydroxy-3,7-dimethyloctanal, (4-propan-2- ylcyclohexyl)methanol, (E)-3-methyl-4-(2,6,6-trimethyl-l-cyclohex-2-enyl)but-3-en-2-one, 2-phenyl propyl alcohol. 2,2,5-trimethyl-5-pentylcyclopentan-l-one, phenoxy ethyl isobutyrate, ethyl linalyl acetate, isobutyl salicylate, methyl benzoate, citronellyl acetate, 2- heptylcyclopentan- 1 -one, lactone of dihydrojasmone, cis-jasmone, (3-pentyloxan-4-yl) acetate, dimethyl octanol, nerolione, 3-(4-tert-butylphenyl)propanal, phenylethylacetate, alpha-amyl cinnamyl aldehyde, 4-methyl-2-(2-methylpropyl)oxan-4-ol, 2-cyclohexylidene-2- phenyl acetonitrile, phenoxanol, (E)-4-(2,6,6-trimethyl-l-cyclohex-2-enyl)but-3-en-2-one, rose oxide, 4-(2,6,6-trimethyl-l-cyclohex-2-enyl)pentanal, (2Z)-3,7-dimethylocta-2,6-dien-l- ol, 2,2-dimethyl-3-(3-methylphenyl)propan-l-ol, methyl naphthyl ketone, methyl 2- aminobenzoate, (E)-3-methyl-4-(2,6,6-trimethyl-l-cyclohex-2-enyl)but-3-en-2-one, myrcenol, 9-decen-l -ol, l-(5,6,7,8-tetrahydronaphthalen-2-yl)ethanone, 3-(4-isobutyl- phenyl)-2-methyl-propionaldehyde, hexyl cinnamaldehyde, hexyl salicylate, indole, dimethyl benzy l carbinol, famesal, 1-dihydrofamesal, 4-(4-hydroxy-4-methylpentyl)cyclohex-3-ene-l- carbaldehyde, laurinal. lilial, methyl dihydrojasomante, methoxymelonal, methyl benzoate, 1- (4-isopropyl-cyclohexyl) ethanol, nerol, l-(3-methyl-benzofuran-2-yl)-ethanone, nery l acetate, orantha, L., 2-pentyl cyclopentanone, yara yara, geranium oil, rose oil, lavender oil, and ylang oil.

[0130] Non-limiting examples of fruity compounds include ethyl 2-methyl butyrate, (2-tert- butylcyclohexyl) acetate, ethyl methylphenylgly cidate, raspberry ketone, delta-dodecalactone, dimethyl benzy 1 carbinyl butyrate, methyl dioxolan, gamma-undecalactone, benzy l propionate, gamma-decalactone, isoamyl isovalerate, ethyl isovalerate, hexyl isobuty rate, diethyl malonate, dimethyl benzy l carbinyl acetate, ethyl (lR,6S)-2,2,6-trimethylcyclohexane-l- carboxylate, 2,6-dimethylhept-5-enal, oxane 50% in TEC, allyl caproate, ethyl heptoate, ethyl butyrate, allyl caproate, 3-tricyclo[5.2.1.02,6]dec-3-enyl acetate, cis-6-nonenal, ethyl acetoacetate, cassis base, 3-methylbut-2-enyl acetate, damascenone, 6-(pent-3-en-l- yl)tetrahydro-2H-pyran-2-one, cis-3-hexenyl butyrate, beta-damascone, 4-(l,3-benzodioxol-5- yl)butan-2-one, allyl cyclohexyl propionate, and alpha-damascone. dimethyl benzyl carbinol acetate, dimethyl sulfide, ethyl acetate, ethyl caproate, ethyl decadienoate, ethyl tricyclo [5.2.1.02.6] decan-2 carboxy late, methyl (2-((4S)-4-methyl-2-methylenecyclohexyl)propan-2- yljsulfane, p-mentha-8-thiol-3-one, 3,5,5-trimethylhexyl acetate, and nopyl acetate.

[0131] Non-limiting examples of gourmand compounds include ethyl vanillin, gammadodecalactone. butyl butyryl lactate, benzaldehyde, isobutyl lignate, acetyl methyl carbinol, cyclotene, 3,4-di ethyl -2,5-dimethylcyclohex-2-en-l -one, furaneol, tolylaldehyde, angelica lactone-alpha, caprylic acid, ethyl fraison, guaiacol, maple furanone, 2-acetyl pyrazine, 2,5- dimethyl pyrazine, and vanillin.

[0132] Non-limiting examples of green compounds include 1 -phenylethyl acetate. 2,4- dimethylcyclohex-3-ene-l-carbaldehyde, trans-2-hexenal, trans-2-hexanol, cis-2-hexen-l-ol. undecavertol, phenyl acetaldehyde, octahydro-5-methoxy-4,7-methano-lH-indene-2- carboxaldehyde, 2.4.6-trimethylcyclohex-3-ene-l-carbaldehyde, cis-3-hexenyl acetate, [(4Z)- l-cyclooct-4-enyl] methyl carbonate, allyl amyl glycolate, phenyl acetaldehyde dimethyl acetal, cis-3-hexen-l-ol, N-(5-methylheptan-3-ylidene)hydroxylamine, cis-3-hexenyl salicylate, l-(5,5-dimethyl-l-cyclohexenyl)pent-4-en-l-one), cis-3-hexenyl benzoate, phenyl acetaldehyde, methyl octine carbonate, cis-3-hexenyl isobutyrate, [(Z)-hex-3-enyl] methyl carbonate, methyl heptane carbonateviolet leaf, cyclogalbanate, l-(5,5-dimethyl-l- cyclohexen-l -yl)-4-penten-l -one, galbanolene, galbanum, 2 -methoxy -2 -methylheptane, methyl octine carbonate, neofolione, 2,6-nonadienal, (2R,4S)-2-methyl-4-propyl-l,3- oxathiane, galbex and vionil.

[0133] Non-limiting examples of hay compounds include acetanisole, gamma-heptalactone, acetanisole, gamma-octalactone, and 2,6-dimethylheptan-2-ol.

[0134] Non-limiting examples of herbal compounds include 2,2,6-trimethyl-alpha- propylcyclohexanepropanol, gamma-hexalacotone, cyclohexyl lactone, eucalyptus oil, amyl salicylate, lavandin oil, eucalpytol. rosemary oil, carrot seed oil, 3-(4-methoxyphenyl)-2- methylpropanal, anethol. bamboo ketone, carvacrol, carvone-L, clary sage natural oil. p- cymene, Daikon Ether, 2,6-dimethylheptan-2-ol, menthol, methyl salicylate, thymol, natural basil oil, natural eucalyptus oil, eucalyptol, sweet natural fennel oil, and natural cedar leaf oil.

[0135] Non-limiting examples of marine compounds include 3-(4-ethylphenyl)-2,2- dimethylpropanal, 4-tert-butylphenylacetonitrile. 4-[(3E)-4.8-dimethylnona-3,7- dienyl] pyridine, myrac aldehyde, and ultrazure.

[0136] Non-limiting examples of mossy compounds include hinokitiol, isobutyl quinolone, and isopropyl quinolone.

[0137] Non-limiting examples of musk compounds include 1,4-dioxacycloheptadecane- 5, 17-dione and (5E)-3-methylcyclopentadec-5-en-l-one, 5-cyclohexadecen-l-one, 17- oxacycloheptadec-6-en-l-one, 2,2,6-trimethyl-alpha-propylcyclohexanepropanol, 16- oxacyclohexadecan-l-one, galaxolide, ((12E)-l-oxacyclohexadec-12-en-2-one, [2-[l-(3,3- dimethylcyclohexyl)ethoxy]-2-methylpropyl]propanoate, 3 -methylcyclopentadecan- 1 -one, 1- (l,l,2,6-tetramethyl-3-propan-2-yl-2,3-dihydroinden-5-yl)ethanone, and 1 -(3, 5, 5, 6,8,8- hexamethyl-6,7-dihydronaphthalen-2-yl)ethanone.

[0138] Non-limiting examples of mint compounds include L-menthol, 2-butan-2- ylcyclohexan-l-one, commint oil, peppermint oil, spearmint oil, and L-carbone.

[0139] Non-limiting examples of powdery’ compounds include heliotropine and / or whiskey lactone. Non-limiting examples of pine compounds include isobomyl acetate, camphor, cypress oil, borneol, pine oil. fir needle Canadian, juniper berry, alpha-terpineol, 1 -bornyl acetate, camphene, camphor gum powder, dihydroterpineol, and beta-pinene.

[0140] Non-limiting examples of spicy compounds include ceylon cinnamon leaf oil, cinnamyl acetate, clove leaf oil, clove bud oil, elemi oil, valspice, acety l eugenol, ginger root, isoeugenol, and acetyl isoeugenol, delta-caryophellene, cardamon oil, cinnamaldehyde, cuminaldehyde, perilla aldehyde, cardamom oil. clove oil, ginger extract, ginger oil, and black pepper extract.

[0141] Non-limiting examples of woody and / or amber compounds include (E)-2-ethyl-4- (2,2,3-trimethyl-l-cyclopent-3-enyl)but-2-en-l-ol, 4-(l-ethoxyethenyl)-3,3,5,5- tetramethylcyclohexan-l-one, patchouli oil, (1S.2R,5S, 7R,8R)-2, 6,6,8- tetramethyltricy clo[5.3. 1.01 ,5]undecan-8-oL 1 -(2,2,6-trimethylcy clohexyl)hexan-3-ol, ethoxymethoxy cyclododecane, l-(2-tert-butylcyclohexyl)oxybutan-2-ol, 3-methyl-5-(2,2,3- trimethyl-l-cyclopent-3-enyl)pentan-2-ol, cedarwood oil, cedrol methyl ether, 1- [(lR,2R,5S,7R)-2,6,6,8-tetramethyl-9-tricyclo[5.3.1.01.5]undec-8-enyl]ethanone, [(1R,2S)-1- methyl-2-[[(lR,3S.5S)-l,2,2-trimethyl-3- bicyclo[3.1.0]hexanyl]methyl]cyclopropyl]methanol, (E)-2-methyl-4-(2,2,3-trimethyl-l- cyclopent-3-enyl)but-2-en-l-ol, l,l,2,3,3-pentamethyl-2,5,6,7-tetrahydroinden-4-one, cedanol, 3-Methyl-5-(2,2,3-trimethyl-3-cyclopenten-l -yl)-4-penten-2-ol, (R,E)-2-Methyl-4- (2,2,3-trimethylcyclopent-3-enyl) but-2-en-l-ol, hinokitiol. DH-ionone beta, 5-butan-2-yl-2- (2,4-dimethyl-l-cyclohex-3-enyl)-5-methyl-l,3-dioxane, 2,4-Dimethyl-2-(l,l,4,4- tetramethyltetralin-6-yl)- 1,3 -dioxolane, 2-ethyl-4-[(lR)-2,2,3-trimethyl-3-cyclopenten-l-yl]- (2E)-buten-l-ol, polysantol, rhubofix, sandalwood, musk indenofuran. labdanum, and 2,2,6- trimethyl-alpha-propylcyclohexanepropanol.

[0142] 4,4.2. Solvents and Bases

[0143] Each of the fragrance compositions, the accords, the modifying compounds, and the facilitator compounds, as provided herein, can be admixed with any suitable base, solvent, or combination thereof to form a fragrance composition.

[0144] In certain embodiments, the accord compositions provided herein can be admixed with any suitable base, solvent, or combination thereof to form a fragrance composition for use in a consumer product. In certain embodiments, the fragrance composition comprises a base and / or solvent in an amount of from about 20% to about 80%, from about 20% to about 70%, from about 20% to about 60%, from about 40% to about 80%, or from about 40% to about 60% by weight of the fragrance composition. In particular embodiments, the base and / or solvent are optional.

[0145] In particular embodiments, the fragrance composition comprises one or more bases, solvents, or combinations thereof. Any suitable base, solvent, or excipient can be used. In certain embodiments, the fragrance composition comprises one, two, three, or four bases, solvents, or combinations thereof. In particular embodiments, the fragrance composition comprises one or more bases or solvents in an amount of from about 1% to about 40%, or from about 5% to about 40%. or from about 10% to about 40%, or from about 20% to about 40%, or from about 30% to about 40%, or from about 1 % to about 20%, or from about 5% to about 20%, or from about 10% to about 20%, or from about 20% to about 40%, or from about 30% to about 40% by weight of the fragrance composition.

[0146] In certain embodiments, bases can include, but are not limited to. essential oils, lactones, aldehydes, alcohols, ketones, nitriles, esters, amides, oximes, and other fragrant compounds, and perfuming co-ingredients.

[0147] The fragrance compositions further comprise at least one solvent. In certain embodiments, the solvents can include, but are not limited to, dipropylene glycol, propylene glycol, dieth-phthalate (DEP), diisononyl phthalate (D1NP), benzyl benzoate, benzyl alcohol, iso propyl myristate (IPM), isopropyl palmitate (IPP / Deltyl Prime), butyl stearate, dioctyl adipate, triethyl citrate, methyl hydrogenated rosinate (CAS No. 8050-15-5), terpenes (e.g., Glidsol 100). paraffinic naphthenic solvent (e.g., LPA-170 Solvent), isoalkanes (e.g., Soltrol 170 Isoparaffin), isoparaffins, isooctadecanol (e.g., Tego Alkanol 66), phenoxyethanol, diethylene glycol monoethyl ether (Carbitol low gravity), glycol ether (Methyl Carbitol), dipropylene glycol methyl ether (e.g., Dowanol DPM), dipropylene glycol methyl ether acetate (e.g., Dowanol DPMA), propylene glycol methyl ether (e.g., Dowanol PM Glycol Ether), tripropylene glycol methyl ether, diisoheptyl phthalate (e.g.. Jayflex® 77 available from Exxon), deionized or distilled water, specially denatured ethyl alcohol (e.g., SDA 40B), dimethyl adipate / dimethyl glutarate (e.g., DBE®-LVP Esters available from FLEXISOLV®), racemic mixture (+ / -)-2,2-dimethyl-4-hydroxymethyl-l,3-di oxolane (e.g., Augo Clean Multi Solvent), alcohol 40B anhydrous 200 Proof, alcohol SDA 40B 190 Proof, triacetin, 3-methoxy- 3-methyl-l -butanol (Solfit), benzyd laurate, tripropylene glycol methyl ether (e.g., Dowanol TPM), Dipropylene glycol n-butyl ether (e.g., Dowanol DPNB), dimethyl siloxane, trimethylsiloxy-terminated (e.g., Dowanol Coming 200 Fluid), caprylic / capric triglycerides (e.g., Neobee M-5), propylene glycol and glycery l oleate (e.g.. Arlacel 186), Uniceth-IC20L (e.g., Arlasolve 200 L). 1,3-propanediol, -Butyl Cellosolve, hexylene glycol, clycerine, N- methyl stearate, isopropyl alcohol, 2-methyl-l,3-propanediol (e.g., MP Diol Glycol), diethyl citrate, triethyl acetyl citrate, isopentyldiacetate (IPD-AC), dimethyl 2-methylpentanedioate (e.g., Rhodiasolv Iris), medium chain triglycerides (MTC). terpene hydrocarbons (e.g., Dipentene 5100), DL-limonene (e.g.. Dipentene 122), 3,5,5-trimethylhexyl acetate, diethyl malonate, limonene (e.g., Unitene D), cyclohexyl acetate, para-tertiary-butyl (e.g., Vertenex), ethyl acetate, and diethyl succinate.

[0148] In particular embodiments, the solvent is Dipropylene Glycol Methyl Ether Acetate (Dowanol DMPA). In alternative embodiments, the solvent is dipropylene glycol. In particular embodiments, the solvent is Dowanol DMPA and dipropylene glycol.

[0149] 4,4.3. Odor Modifying Fragrance Compositions

[0150] The fragrance compositions as described herein comprise an accord, one or more additional fragrance compounds, and / or one or more bases, solvents, excipients, or combinations thereof. In particular embodiments, the fragrance composition comprises an accord, one or more additional fragrance compounds, and one or more solvents.

[0151] In particular embodiments, the fragrance composition comprises an accord composition in an amount of from about 0.5% to about 40%, from about 1% to about 35%, from about 1% to about 10%. or from about 10% to about 35% by weight of the fragrance composition.

[0152] In particular embodiments, the accord composition comprises odor modifying fragrance compounds in an amount of from about 0.001% to about 20%, about 0.005% to about 15%. about 0.01% to about 8%, about 0.01% to about 1%, or about 1% to about 8% by weight of the fragrance composition. In particular embodiments, the accord composition comprises facilitator compounds in an amount of from about 0.05% to about 35%, about 0.1% to about 40%, about 0.25% to about 25%, about 0.25% to about 5%, or about 5% to about 25% by weight of the fragrance composition.

[0153] In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises two odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises at least one or at least two odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6.9a-tetramethylnaphtho[2,l-b]furan and eugenol and at least one, at least two, at least three, at least four, or at least five facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate. In particular embodiments, the accord composition comprises odor character modifying fragrance compounds dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and eugenol and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate. In certain embodiments, the fragrance composition comprises odor character modifying fragrance compounds in an amount of about 0.05% to about 0.5%, about 0.1% to about 0.4%, or about 0.2% to about 0.3% by weight of the fragrance composition, facilitator compounds in an amount of about 1% to about 8%, about 2% to about 7%, about 3% to about 6% by weight of the fragrance composition, additional compounds in an amount of from about 5% to about 40%, about 10% to about 30%, or about 15% to about 25% by weight of the fragrance composition, and one or more solvent in an amount of form about 50% to about 99%, from about 60% to about 90%, from about 70% to about 80% by weight of the fragrance composition.

[0154] In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises the odor character modifying compound l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one and at least one, at least two, at least three, or at least four facilitator compounds selected from the group consisting of (4aR.5R.7aS.9R)-octahydro-2.2.5.8.8.9a-hexamethyl-4H-4a,9-methanozuleno[5.6-d]-l,3- dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin- 3(4H)-one, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying compound l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one and the facilitator compounds (4aR,5R.7aS,9R)-octahydro-2,2.5.8.8.9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-di oxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl- 2H-benzo-l,5-dioxepin-3(4H)-one, and hexyl acetate. In particular embodiments, the fragrance composition comprises odor character modifying fragrance compounds in an amount of from about 0.005% to about 0.1%, about 0.01% to about 0.05%, or about 0.02% to about 0.04% by weight of the fragrance composition, facilitator compounds in an amount of from about 0. 1% to about 1%, about 0.25% to about 0.75%, or about 0.4% to about 0.6% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 5% to about 50%, about 10% to about 40%, or about 15% to about 30% by weight of the fragrance composition, and one or more solvent in an amount of form about 50% to about 99%, from about 60% to about 90%, from about 70% to about 80% by weight of the fragrance composition.

[0155] In certain embodiments, the fragrance composition comprises an accord composition. In certain embodiments, the accord composition comprises three odor character modifying fragrance compounds and five facilitator compounds. In particular embodiments, the accord composition comprises at least one, at least two, or at least three, character modifying compounds selected from the group consisting of l-(2,6.6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, eugenol, and ethyl 2-methylpentanoate, and at least one, at least two, at least three, at least four, or at least five facilitator compounds selected from the group consisting of coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate. In particular embodiments, the accord composition comprises the odor character modifying fragrance compounds ethyl 3-phenyloxirane-2-carboxylate, l-(2,6.6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, eugenol, and ethyl 2-methylpentanoate, and the facilitator compounds coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate. In certain embodiments, the fragrance composition comprises about odor character modifying fragrance compounds in an amount of from about 1% to about 10%, 2% to about 8%, or about 3.5% to about 7% by weight of the fragrance composition, facilitator compounds in an amount of from about 1% to about 20%, about 3% to about 15%, or about 5% to about 10% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 5% to about 50%, about 10% to about 40%, or about 15% to about 30% by weight of the fragrance composition, and one or more solvent in an amount of form about 35% to about 85%, from about 45% to about 75%, from about 55% to about 65% by weight of the fragrance composition.

[0156] In certain embodiments, the fragrance composition comprises an accord composition. In certain embodiments, the accord composition comprises one odor character modifying compound and three facilitator compounds. In particular embodiments, the accord composition comprises one odor character modifying compound dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan and at least one, at least two, or at least three facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5.8,8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-1.3-dioxole, ethyl maltol, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying compound dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-di oxole, ethyl maltol, and hexyl acetate. In particular embodiments, the fragrance composition comprises odor modifying fragrance compounds in an amount of from about 0.01% to about 2%, about 0.1% to about 1%, or about 0.25%, to about 0.75% by weight of the fragrance composition, facilitator compounds in an amount of from about 5% to about 50%. about 10% to about 40%, or about 20% to about 30% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 10% to about 70%, about 20% to about 60%, or about 30% to about 50% by weight of the fragrance composition. and one or more solvent in an amount of from about 10% to about 60%, about 20% to about 50%, or from about 30% to about 40% by weight of the fragrance composition.

[0157] In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises two odor character modifying fragrance compounds and eight facilitator compounds. In certain embodiments, the accord composition comprises at least one or at least two odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3a, 6.6.9a- tetramethylnaphtho[2, 1 -b]furan and 1 -( 1 ,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone and at least one, at least two, at least three, at least four, at least five, at least six, at least seven, or at least eight facilitator compounds selected from the group consisting of (4aR.5R.7aS,9R)-octahydro-2,2.5.8.8.9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-di oxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy- 3,6-dimethylbenzoate, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate. In particular embodiments, the fragrance composition comprises odor character modifying fragrance compounds in an amount of from about 0.05% to about 1%, about 0.1% to about 0.75%, or about 0.2% to about 0.5% by weight of the fragrance composition, facilitator compounds in an amount of from about 1% to about 40%, about 5% to about 35%, or about 10% to about 20% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 0.5% to about 40%. about 1% to about 30%, or about 5% to about 15% by weight of the fragrance composition, and one or more solvent in an amount of form about 50% to about 99%, from about 60% to about 90%, from about 70% to about 80% by weight of the fragrance composition.

[0158] In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises seven odor character modifying fragrance compounds and nine facilitator compounds. In certain embodiments, the accord composition comprises at least one, at least two at least three, at least four, at least five, at least six, or at least seven odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, 2,4-dimethyl-4- phenyltetrahydrofuran. l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one. eugenol, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate, and at least one, at least two, at least three, at least four, at least five, at least six, at least seven, at least eight, or at least nine facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol. lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin- 3(4H)-one, (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal. In particular embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, 2,4-dimethyl-4- phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, 1- (l,2,3,4,5,6,7,8-octahydro-2.3.8,8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate. and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- di oxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one, (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal. In certain embodiments, the fragrance composition comprises odor character modifying fragrance compounds in an amount of from about 1% to about 10%, about 2% to about 9%, or about 3% to about 7% by weight of the fragrance composition, facilitator compounds in an amount of from about 5% to about 50%, about 10% to about 40%, or about 15% to about 30% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 1% to about 50%. about 10% to about 40%, or about 20% to about 30% by weight of the fragrance composition, and one or more solvent in an amount of form about 20% to about 70%, from about 30% to about 60%, from about 40% to about 50% by weight of the fragrance composition

[0159] In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises four odor character modifying fragrance compounds and six facilitator compounds. In certain embodiments, the accord composition comprises at least one, at least two, at least three, or at least four odor character modifying fragrance compounds selected from the group consisting of dodecanal, 1 -(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and at least one, at least two, at least three, at least four, at least five, and at least six facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-1.3-dioxole, coumarin, ethyl maltol, methyl 2,4- dihydroxy-3.6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate, and 2-methylundecanal. In certain embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and the facilitator compounds (4aR,5R,7aS,9R)- octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-I,3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate. and 2-methylundecanal. In particular embodiments, the fragrance composition comprises odor character modifying fragrance compound in an amount of from about 0.5% to about 10%, from about 1% to about 8%, or about 3% to about 7% by weight of the fragrance composition, facilitator compounds in an amount of from about 1% to about 25%, from about 5% to about 20%, or from about 10% to about 18% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 1% to about 50%, about 10% to about 40%, or about 20% to about 30% by weight of the fragrance composition, and one or more solvent in an amount of form about 30% to about 80%, from about 40% to about 70%, from about 50% to about 60% by weight of the fragrance composition

[0160] In certain embodiments, the fragrance composition comprises an accord composition. In certain embodiments, the accord composition comprises five odor character modifying compounds and five facilitator compounds. In particular embodiments, the accord composition comprises at least one, at least two, at least three, at least four, or at least five odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3 a, 6, 6, 9a- tetramethylnaphtho[2,l-b]furan, ethyl 3-phenyloxirane-2-carboxylate, 2,4-dimethyl-4- phenyltetrahydrofuran. l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, and ethyl 2- methylpentanoate, and at least one, at least two, at least three, at least four, or at least five facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8.8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, gamma-nonalactone. and (4-tert-butylcyclohexyl) acetate. In particular embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecahydro-3a,6,6,9a-tetramethylnaphtho[2, 1 -b]furan, ethyl 3-phenyloxirane-2-carboxylate, 2,4-dimethyl-4-phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, and ethyl 2-methylpentanoate, and the facilitator compounds (4aR,5R,7aS,9R)-octahydro- 2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno|5,6-d]-l,3-dioxole, coumarin, ethyl maltol, gamma-nonalactone, and (4-tert-butylcyclohexyl) acetate. In particular embodiments, the fragrance composition comprises odor character modify ing fragrance compounds in an amount of from about 0.1% to about 5%, about 0.5% to about 4.5%, or about 1% to about 4% by weight of the fragrance composition, facilitator compounds in an amount of from about 1% to about 30%, from about 5% to about 25%, or from about 10% to about 20% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 1% to about 50%, about 10% to about 40%, or about 20% to about 30% by weight of the fragrance composition, and one or more solvent in an amount of form about 30% to about 80%, from about 40% to about 70%, from about 50% to about 60% by weight of the fragrance composition. In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises four odor character modifying fragrance compounds and six facilitator compounds. In certain embodiments, the accord composition comprises at least one, at least two, at least three, or at least four odor character modifying fragrance compounds selected from the group consisting of dodecanal, 1 -(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and l-(l,2,3,4,5.6.7.8-octahydro- 2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and at least one, at least two. at least three, at least four, at least five, or at least six facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5- dioxepin-3(4H)-one, gamma-nonalactone, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and 1 -(1,2, 3, 4, 5, 6, 7, 8- octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and the facilitator compounds (4aR.5R,7aS,9R)-octahydro-2.2.5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, ethyl maltol, methyl 2,4-dihydroxy-3.6-dimethylbenzoate, 7-methyl-2H-benzo-l,5- dioxepin-3(4H)-one, gamma-nonalactone, and hexyl acetate. In particular embodiments, the fragrance composition comprises odor character modify ing fragrance compounds in an amount of from about 0.5% to about 10%, about 1% to about 8%, or about 2% to about 6% by weight of the fragrance composition, facilitator compounds in an amount of from about 0.5% to about 8%, about 1% to about 6%, or about 2% to about 5% by weight of the fragrance composition, and additional fragrance compounds in an amount of from about 10% to about 80%, about 20% to about 70%, or about 30% to about 60% by weight of the fragrance composition, and one or more solvent in an amount of form about 15% to about 65%, from about 25% to about 55%, from about 35% to about 45% by weight of the fragrance composition

[0161] In certain embodiments, the fragrance composition comprises an accord composition. In particular embodiments, the accord composition comprises eight odor character modifying fragrance compounds and eight facilitator compounds. In certain embodiments, the accord composition comprises at least one, at least two, at least three, at least four, at least five, at least six, at least seven, or at least eight odor character modifying fragrance compounds selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, dodecanal, 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, di cyclopentadiene propionate, 1- (l,2,3,4,5,6,7,8-octahydro-2.3.8.8-tetramethyl-2-naphthalenyl)ethanone, 6,6-dimethoxy- 2,5,5-trimethylhex-2-ene, and ethyl 2-methylpentanoate and at least one, at least two, at least three, at least four, at least five, at least six, at least seven, or at least eight facilitator compounds selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy- 3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4- tcrt-butylcyclohcxyl) acetate, and hexyl acetate. In certain embodiments, the accord composition comprises the odor character modifying fragrance compounds dodecahydro- 3a,6,6,9a-tetramethylnaphtho[2, l-b]furan. dodecanal. 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, dicyclopentadiene propionate,! -(1,2, 3, 4, 5,6,7, 8-octahydro-2,3, 8, 8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, and ethyl 2- methylpentanoate and the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5.8.8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-1.3-dioxole, coumarin, ethyl maltol, methyl 2,4- dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma- nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate. In particular embodiments, the fragrance composition comprises odor character modifying fragrance compounds in an amount of from about 1% to about 12%, about 3% to about 8%, or about 4% to about 7% by weight of the fragrance composition, facilitator compounds in an amount of from about 1% to about 25%, from about 5% to about 20%, or from about 8% to about 18% by weight of the fragrance composition, additional fragrance compounds in an amount of from about 1% to about 50%, about 10% to about 40%, or about 25% to about 35% by weight of the fragrance composition, and one or more solvent in an amount of from about 25% to about 75%, from about 35% to about 65%, from about 45% to about 55% by weight of the fragrance composition.

[0162] In particular embodiments, a fragrance composition comprises an accord composition, the accord composition comprising at least one odor character modifying fragrance compound in an amount of from about 0.001% to about 20% by weight of the fragrance composition and at least one facilitator compound in an amount of from about 0.05% to about 35% by weight of the fragrance composition, wherein the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.001 Torr to about 20 Torr at 50 °C and of from about 0.05 Ton to about 65 Torr at 80 °C. In particular embodiments, the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.005 Torr to about 17 Torr at 50 °C and of from about 0.01 Torr to about 60 Torr at 80 °C. In certain embodiments, the logarithm difference of the odor character modifying fragrance compounds is from about 0.5 to about 1.4. In particular embodiments, the fragrance composition comprises at least one to at least thirteen odor character modifying fragrance compounds and at least one to at least eleven facilitator compounds. In certain embodiments, the enthalpy of vaporization of the at least one odor character modifying fragrance compounds is from about 20 KJ / mol to about 120 KJ / mol. In particular embodiments, the odor detection threshold of the at least one odor character modifying fragrance compounds is from about O.OOOf ng / L to about 4 ng / L.

[0163] In particular embodiments, the at least one odor character modifying fragrance compound is selected from the group consisting of l-(2,6.6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, l -(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2, 1 -b]furan, eugenol, 6,6-dimethoxy-2,5,5- trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyl)pyrazine, ethyl 2-methylpentanoate. dicyclopentadiene propionate, ethyl 3- phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0164] In certain embodiments, the at least one facilitator compound is selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2,2.5.8.8.9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-1.3-di oxole, ethyl maltol, lemon oil, methyl 2.4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, coumarin, gammanonalactone, (4-tert-butylcyclohexyl ) acetate, hexyl acetate, vetiver Haiti, 2-methylundecanal, and combinations thereof.

[0165] In particular embodiments, the fragrance composition further comprises additional fragrance compounds. In certain embodiments, the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more floral compound(s), one or more fruity compound(s), one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s), one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s). and / or one or more camphoraceous compound(s), or combinations thereof.

[0166] In certain embodiments, the fragrance composition further comprises at least one base, solvent, or combinations thereof.

[0167] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan and eugenol and at least one facilitator compound selected from the group consisting of (4aR,5R.7aS,9R)-octahydro-2,2.5.8.8.9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-di oxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate

[0168] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen- l-yl)-2-buten-l-one and at least one facilitator compound selected from the group consisting of (4aR,5R.7aS,9R)-octahydro-2, 2,5,8, 8.9a-hexamethyl-4H-4a,9-methanozuleno[5.6-d]- 1,3- dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin- 3(4H)-one, and hexyl acetate.

[0169] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of l-(2,6.6-trimethyl-3-cyclohexen- l-yl)-2-buten-I-one, eugenol, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of coumarin, ethyl maltol, lemon oil, gammanonalactone, and hexyl acetate.

[0170] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a.6.6.9a- tetramethylnaphtho[2,l-b]furan and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, and hexyl acetate.

[0171] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan and l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone and at least one facilitator compound selected from the group consisting of ((4aR,5R.7aS,9R)-octahydro-2, 2,5,8, 8.9a-hexamethyl-4H-4a,9-methanozuleno[5.6-d]- 1,3- dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate.

[0172] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3 a, 6.6.9a- tetramethylnaphtho[2, 1-blfuran, 2,4-dimethyl-4-phenyltetrahydrofuran, l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one, eugenol, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2.2.5.8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-I,3- dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one, (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal.

[0173] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecanal, l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2,2,5,8.8.9a-hexamethyl-4H-4a,9-methanozuleno[5.6-d]-l,3-dioxole. coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate, and 2- methylundecanal.

[0174] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3 a, 6.6.9a- tetramethylnaphtho[2,l-b]furan, ethyl 3-phenyloxirane-2-carboxylate, 2,4-dimethyl-4- phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2.2.5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, gamma-nonalactone. and (4-tert-butylcyclohexyl) acetate.

[0175] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecanal, l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one. eugenol, and l-(l,2,3,4,5,6.7.8-octahydro-2,3,8,8- tetramethyl-2-naphthalenyl)ethanone and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2, 5,8,8, 9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, and hexyl acetate.

[0176] In certain embodiments, the accord composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan, dodecanal, 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, dicyclopentadiene propionate, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H- benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate.

[0177] In particular embodiments, a fragrance composition comprise at least one odor character modifying fragrance compound in an amount of from about 0.001% to about 20% by weight of the fragrance composition and at least one facilitator compound in an amount of from about 0.05% to about 35% by weight of the fragrance composition, wherein the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.001 Torr to about 20 Torr at 50 °C and of from about 0.05 Torr to about 65 Torr at 80 °C. In particular embodiments, the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.005 Ton to about 17 Torr at 50 °C and of from about 0.01 Torr to about 60 Torr at 80 °C. In certain embodiments, the logarithm difference of the odor character modify ing fragrance compounds is from about 0.5 to about 1.4. In particular embodiments, the fragrance composition comprises at least one to at least thirteen odor character modifying fragrance compounds and at least one to at least eleven facilitator compounds. In certain embodiments, the enthalpy of vaporization of the at least one odor character modifying fragrance compounds is from about 20 KJ / mol to about 120 KJ / mol. In particular embodiments, the odor detection threshold of the at least one odor character modify ing fragrance compounds is from about 0.0001 ng / L to about 4 ng / L.

[0178] In particular embodiments, the at least one odor character modifying fragrance compound is selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2- buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethy lnaphtho[2, 1 -b]furan, eugenol, 6,6-dimethoxy-2,5,5- trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2- methylpropyl)pyrazine, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3- phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0179] In certain embodiments, the at least one facilitator compound is selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, coumarin, gammanonalactone, (4-tert-butylcyclohexyl) acetate, hexyl acetate, vetiver Haiti, 2-methylundecanal, and combinations thereof.

[0180] In particular embodiments, the fragrance composition further comprises additional fragrance compounds. In certain embodiments, the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more floral compound(s), one or more fruity compound(s). one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s). one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof.

[0181] In certain embodiments, the fragrance composition further comprises at least one base, solvent, or combinations thereof.

[0182] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a.6,6,9a- tetramethylnaphtho[2,l-b]furan and eugenol and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate

[0183] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl- 2H-benzo-l,5-dioxepin-3(4H)-one, and hexyl acetate.

[0184] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate.

[0185] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan and at least one facilitator compound selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2,2.5.8.8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-1.3-dioxole, ethyl maltol, and hexyl acetate.

[0186] In certain embodiments, the fragrance composition comprises at least one odor character modify ing compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan and l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone and at least one facilitator compound selected from the group consisting of ((4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3.6-dimethylbenzoate, gamma-nonalactone. (4-tert-butylcyclohexyl) acetate, and hexyl acetate.

[0187] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan, 2,4-dimethyl-4-phenyltetrahydrofuran, l-(2,6,6-trimethyl-3- cyclohexen-l-yl)-2-buten-l-one. eugenol, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene. and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- di oxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate. 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one, (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal.

[0188] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecanal, 1 -(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R.7aS,9R)- octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate, and 2-methylundecanal.

[0189] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a- tetramethylnaphtho[2,l-b]furan, ethyl 3-phenyloxirane-2-carboxylate, 2,4-dimethyl-4- phenyltetrahydrofuran, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-dJ-l,3- dioxole, coumarin, ethyl maltol, gamma-nonalactone, and (4-tert-butylcyclohexyl) acetate.

[0190] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecanal, 1 -(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and l-(l,2,3,4,5.6.7.8-octahydro- 2,3,8,8-tetramethyl-2-naphthalenyl)ethanone and at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, methyl 2,4-dihydroxy-3.6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, and hexyl acetate.

[0191] In certain embodiments, the fragrance composition comprises at least one odor character modifying compound selected from the group consisting of dodecahydro-3a.6,6,9a- tetramethylnaphtho[2,l-b]furan, dodecanal. 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, dicyclopentadiene propionate, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, and ethyl 2- methylpentanoate and at least one facilitator compound selected from the group consisting of (4aR.5R,7aS,9R)-octahydro-2.2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H- benzo-l ,5-dioxepin-3(4H)-one, gamma-nonalactone, (4-tert-butyl cyclohexyl) acetate, and hexyl acetate.

[0192] 4.5. End Use in Consumer Products

[0193] The accord compositions of the present disclosure can be used alone or as part of a fragrance composition for use in a consumer product. Alternatively, one or more odor character modifying fragrance compound can be used alone, or optionally with one or more facilitator compounds, or as part of a fragrance composition in a consumer product. In certain embodiments, the consumer product is an air care device.

[0194] 4,5,1. Consumer Products

[0195] The accord compositions or fragrance compositions can be used in any suitable consumer product, such as air care devices. The term "air care device'’ includes any suitable surface that allows for at least some evaporation of volatile materials in any suitable size, shape, form, or configuration. Air care devices can be made from any suitable material providing for the evaporation of volatile materials, including without limitation: natural materials, man-made materials, fibrous materials, non-fibrous materials, porous materials, non-porous materials, and combinations thereof. One non-limiting example is a candle. Other examples of air care devices can include aerosol, air freshener, liquid electric air freshener, fragrance diffuser, gel air freshener, plug-in air freshener, plug-in oil, and wax melt.

[0196] In certain embodiments, the composition described herein can be for use in an electrical liquid air freshener device. The term “electrical liquid air freshener device” or “liquid electrical air freshener” refers to device or system that includes an electrical or battery-operated source of energy which includes heated liquid wick delivery systems, piezoelectrical spraying systems, electrospray devices or Venturi devices. The electrical liquid air freshener device can include a temperature control, where the temperature of the air care composition can be adjusted digitally. In certain embodiments, the temperature is adjusted by switching the device between a low temperature setting and a high temperature setting. In particular embodiments. the temperature is adjusted by switching the device between a fragrance 1 temperature setting and a fragrance 2 temperature setting. In particular embodiments, the temperature of the air care device can be selected by the consumer within a suitable range as disclosed herein, including by way of nonlimiting example from about 50 °C to about 80 °C, about 25 °C to about 55 °C, about 35 °C to about 62 °C, and about 36 °C to about 72 °C.

[0197] A consumer product, wherein the consumer product controls the odor character profile of a fragrance composition, wherein odor character profile is controlled by heating the fragrance composition to a first temperature, providing a first odor, and heating the fragrance composition to a second temperature, providing a second odor, wherein the fragrance composition comprises an odor character modifying accord composition comprising at least one odor character modifying fragrance compound and at least one facilitator compound.

[0198] In certain embodiments, the first temperature and second temperature are both between about 20 °C and about 150 °C. In particular embodiments, the first temperature is about 50 °C and the second temperature is about 80 °C.

[0199] In certain embodiments, the odor character modifying fragrance compound has a vapor pressure of from about 0.001 Torr to about 20 Torr at 50 °C and of from about 0.05 Torr to about 65 Torr at 80 °C. In particular embodiments, the logarithm difference of the odor character modifying fragrance compounds is from about 0.5 to about 1.4. In certain embodiments, the enthalpy of vaporization of the odor character modifying fragrance compounds is from about 20 KJ / mol to about 120 KJ / mol. In particular embodiments, the odor detection threshold of the odor character modifying fragrance compounds is from about 0.0001 ng / L to about 4 ng / L.

[0200] In certain embodiments, the odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydroSa, 6,6, 9a-tetramethylnaphtho[2,l-b]furan, eugenol, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2-methylpropyl)pyrazine, ethyl 2- methylpentanoate, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0201] In particular embodiments, the facilitator compounds are selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4-tert- butylcyclohexyl) acetate, hexyl acetate, coumarin, vetiver Haifa, 2-methylundecanal. and combinations thereof.

[0202] In particular embodiments, the accord composition further comprises additional fragrance compounds. In particular embodiments, the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more flor. al compound(s), one or more fruit}’ compound(s), one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s), one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof.

[0203] 4,5.2. Control of Odor Character Profile

[0204] The accord compositions described herein can be used to produce an odor character modification. When the accord composition is heated to a first temperature, a first odor is provided. Upon heating the accord composition to a second temperature, a second odor is provided. Unexpectedly, after heating, cooling, or adjusting the accord composition to the first temperature, the first odor is again provided.

[0205] In particular embodiments, the odor character profile is controlled by heating the accord composition to a first temperature, where a first odor is provided, then heating the accord composition to a second temperature, where a second odor is provided. In certain embodiments, the accord composition is adjusted to the first temperature, and the first odor is provided. In certain embodiments, the accord composition is adjusted to the second temperature, and the second odor is provided. The release of a first and second odor at the first and second temperatures is an odor character modification.

[0206] The first temperature differs from a second temperature. In certain embodiments, the first temperature is greater than the second temperature; in another embodiment, the second temperature is greater than the first temperature. In certain embodiments, the modification can be observed at any point between two temperatures, including the minimum and maximum temperatures provided.

[0207] In particular embodiments, the first and second temperature are selected at any two temperatures between about 20 °C and about 150 °C, about 20 °C and about 120 °C, about 20 °C and about 100 °C, about 20 °C and about 90 °C, about 20 °C and about 80 °C, about 20 °C and about 70 °C, about 20 °C and about 60 °C, about 20 °C and about 50 °C, about 20 °C and about 40 °C, and about 20 °C and about 30 °C. In other embodiments, the first and section temperature are selected at any two temperatures between about 30 °C and about 150 °C, about

[0208] 30 °C and about 120 °C, about 30 °C and about 100 °C, about 40 °C and about 100 °C, about

[0209] 50 °C and about 100 °C, about 60 °C and about 100 °C, about 70 °C and about 100 °C, about

[0210] 80 °C and about 100 °C, about 90 °C and about 100 °C. In certain embodiments, the first and second temperature are selected at any two temperatures between about 40 °C and about 150 °C, about 50 °C to about 150 °C, about 60 °C to about 150 °C, about 70 °C to about 150 °C, about 80 °C to about 150 °C, about 90 °C to about 150 °C, about 100 °C to about 150 °C, about 40 °C to about 120 °C, about 50 °C to about 120 °C, about 60 °C to about 120 °C, about 70 °C to about 120 °C, about 80 °C to about 120 °C, about 90 °C to about 120 °C. or about 100 °C to about 120 °C. In certain embodiments, the first and second temperature are selected at any two temperatures between about 30 °C and about 90 °C, 40 °C and about 90 °C, about 50 °C and about 90 °C, about 60 °C and about 90 °C, about 70 °C and about 90 °C, about 80 °C and about 90 °C, about 30 °C and about 80 °C, about 40 °C and about 80 °C, about 50 °C and about 80 °C. about 60 °C and about 80 °C, about 70 °C and about 80 °C. about 30 °C and about 70 °C, about 40 °C and about 70 °C, about 50 °C and about 70 °C, about 60 °C and about 70 °C, about 30 °C and about 60 °C, about 40 °C and about 60 °C, about 50 °C and about 60 °C, about 30 °C and about 50 °C, about 40 °C and about 50 °C. In a particular embodiment, the first and second temperature are selected at any two temperatures between about 50 °C and about 80 °C. In a particular embodiment, the first and second temperature are selected at any two temperatures are between about 25 °C and about 55 °C. In a certain embodiment, the first and second temperature are selected at any two temperatures are between about 35 °C and about 62 °C. In an alternative embodiment, the first and second temperature are selected at any two temperatures between about 36 °C and about 72 °C.

[0211] In particular embodiments, the first and second temperatures are selected from any temperature greater than about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 50 °C, about 60 °C, or about 70 °C and less than about 50 °C, about 55 °C, about 60 °C, about 62 °C about 70 °C, about 72 °C, about 75 °C, about 80 °C. about 90 °C, about 100 °C, about 120 °C or about 150 °C. In certain embodiments, the first and second temperatures are each independently selected from the group consisting of about 20 °C, about 25 °C, about 30 °C, about 35 °C, about 36 °C, about 40 °C, about 45 °C. about 50 °C, about 55 °C, about 60 °C, about 62 °C, about 65 °C, about 70 °C, about 72 °C, about 75 °C. about 80 °C, about 85 °C, about 90 °C, about 95 °C, about 100 °C, about 110 °C, about 120 °C, about 130 °C, about 140 °C, and about 150 °C. In particular embodiments, a first temperature is about 25 °C and a second temperature is about 55 °C. In certain embodiments, the first temperature is about 35 °C and the second temperature is about 62 °C. In alternative embodiments, the first temperature is about 36 °C and the second temperature is about 72 °C. In particular embodiments, the first temperature is about 50 °C and the second temperature is about 80 °C. In particular embodiments, a first temperature is about 55 °C and a second temperature is about 25 °C. In certain embodiments, the first temperature is about 62 °C and the second temperature is about 35 °C. In alternative embodiments, the first temperature is about 72 °C and the second temperature is about 36 °C. In particular embodiments, the first temperature is about 80 °C and the second temperature is about 50 °C.

[0212] In particular embodiments, the modification of the odor character profile is controlled when the accord composition is heated to a first temperature and a first odor is provided. The accord composition is then heated to a second temperature and a second odor is provided. In preferred embodiments, the modification of the odor character profile is controlled when the accord composition is heated to about 50 °C and a first odor is provided, then the accord composition is heated to about 80 °C and a second odor is provided. In alternative embodiments, the modification of the odor character profile is controlled when the accord composition is heated to about 35 °C and a first odor is provided, then the accord composition is heated to about 55 °C and a second odor is provided. In further embodiments, the modification of the odor character profile is controlled when the accord composition is heated to about 35 °C and a first odor is provided, then the accord composition is heated to about 62 °C and a second odor is provided. In other embodiments, the modification of the odor character profile is controlled when the accord composition is heated to about 36 °C and a first odor is provided, then the accord composition is heated to about 72 °C and a second odor is provided.

[0213] In alternative embodiments, the modification of the odor character profile of a fragrance composition is controlled. In particular embodiments, the odor character modification profile is controlled by heating the fragrance composition to a first temperature, where a first odor is provided then heating the fragrance composition to a second temperature, where a second odor is provided. In certain embodiments, the fragrance composition is adjusted to the first temperature, and the first odor is provided. The release of a first and second odor at the first and second temperatures is an odor character modification.

[0214] In certain embodiments, the accord composition or fragrance composition can be used in a consumer product, as discussed herein. A modification in odor character can be initiated in the consumer product by heating the accord composition or fragrance composition to a first temperature, where a first odor is provided, followed by heating the accord composition or fragrance composition to a second temperature, where a second odor character is provided.

[0215] The present disclosure provides a method of controlling the odor character profile of an accord composition, comprising heating the accord composition to a first temperature, wherein at the first temperature the accord composition provides a first odor, and heating the accord composition to a second temperature, wherein at the second temperature the accord composition provides a second odor, wherein the accord composition comprises at least one odor character modifying fragrance compound and at least one facilitator compound.

[0216] In certain embodiments, the odor character modifying fragrance compound has a vapor pressure of from about 0.001 Torr to about 20 Torr at 50 °C and of from about 0.05 Torr to about 65 Torr at 80 °C. In particular embodiments, the logarithm difference of the odor character modifying fragrance compounds is from about 0.5 to about 1.4. In certain embodiments, the enthalpy of vaporization of the odor character modifying fragrance compounds is from about 20 KJ / mol to about 120 KJ / mol. In particular embodiments, the odor detection threshold of the odor character modifying fragrance compounds is from about 0.0001 ng / L to about 4 ng / L.

[0217] In certain embodiments, the odor character modifying fragrance compounds are selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro- 3a,6,6,9a-tetramethylnaphtho[2, l-b]furan. eugenol. 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2-methylpropyl)pyrazine, ethyl 2- methylpentanoate, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8-dimethyl non-7-en-2-ol, and combinations thereof.

[0218] In particular embodiments, the facilitator compounds are selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gamma-nonalactone, (4-tert- butylcyclohexyl) acetate, hexyl acetate, coumarin, vetiver Haiti, 2-methylundecanal, and combinations thereof.

[0219] In particular embodiments, the accord composition further comprises additional fragrance compounds. In particular embodiments, the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more flor, al compound(s), one or more fruity compound(s). one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s). one or more musk compound(s) one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof.

[0220] 5. EXAMPLES

[0221] The following examples are merely illustrative of the presently disclosed subject matter and they should not be considered as limiting the scope of the subject matter in any way. Example 1

[0222] The properties of various fragrance compounds were evaluated to determine if an odor character modification will be observed between a first temperature, 50 °C, and a second temperature, 80 °C. The vapor pressure (VP) values at 50 °C and 80 °C were determined computationally. These values were used to determine the difference in logarithm values, where the following equation is used: log difference = log(VP80oc) - log (VP50oc).

[0223] The enthalpy of vaporization (AH;ip) was calculated with the Clausius-Clapeyron equation using vapor pressure values at 20 °C and 25 °C computationally calculated or available in the literature. The vapor pressure of the fragrance compounds can be used to calculate enthalpy of vaporization using an equation, as follows:

[0224] The calculated logarithm difference and enthalpy of vaporization values are show n in Table 1, below;

[0225] Table 1.

[0226]

[0227] Various fragrance compounds, including compounds evaluated in Table 1, were then analyzed at 50 °C and 80 °C to determine the odor character at the two temperatures. To evaluate the odor character of the fragrance compounds, expert perfumers were provided with a liquid electric device set to achieve a wick temperature of 50 °C or 80 °C in an 800 cu. ft. booth. The fragrance compounds were mixed with dipropylene glycol methyl ether acetate (DPMA) in the amount indicated in Table 2 prior to evaluation. When odor character is identified as “weak” or “very' weak” it is understood that an odor was detected in the conditions described, but the odor had no identifiable or discriminating character.

[0228] Table 2.

[0229] As seen in Table 2, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, 1-

[0230] (l,2,3,4,5,6,7,8-octahydro-2.3.8.8-tetramethyl-2-naphthalenyl)ethanone, dodecahydro- 3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, eugenol, ethyl 3-phenyloxirane-2-carboxylate, dicyclopentadiene propionate, 2-methoxy-3-(2-methylpropyl)pyrazine, (4S)-4.8-dimethyl non-7-en-2-ol, dodecanal, ethyl 2-methylpentanoate, and coumarin had an odor character modification.

[0231] Example 2

[0232] Using the odor character modifying fragrance compounds identified in Example 1, an accord composition was formulated using odor character modifying fragrance compounds and additional fragrance compounds, as seen in Table 3.

[0233] Table 3.

[0234] Example 3

[0235] A fragrance composition using the accord of Example 2 was formulated by combining 3% by weight of the accord with 97% by weight of dipropylene glycol methyl ether acetate. Expert perfumers evaluated the composition at 50 °C and 80 °C to determine the odor character and odor strength between the two temperatures. The odor strength at 50 °C was 2 and at 80 °C was 5, indicating an increase in the odor strength. At 80 °C, the composition was described as much more woody, slightly citrus (grapefruit), vetiver, and earthy than at 50 °C, demonstrating an odor character modification.

[0236] Example 4

[0237] Using odor character modifying fragrance compounds, Compositions 4A and 4B were formulated, as shown in Table 4. Composition 4A includes the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate, while Composition 4B omits the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2.5.8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-1.3-di oxole, coumarin, and ethyl maltol. Table 4.

[0238] The odor character at a low and high setting of each composition was evaluated by placing the composition into two air care devices and allowing the devices to ramp up for 24 hours at a medium setting. One device with Composition 4A was placed in an 800 sq ft room on a low setting and a second device was placed a second 800 sq ft room on a high setting. Expert perfumers then evaluated the odor character modification between the low and high setting, as well as the odor character at each setting. This was repeated for Composition 4B, and the odor character was determined for each composition.

[0239] Table 5.

[0240] As shown in Table 5, Composition 4A had a character change of 4, indicating a significant odor character modification, with a different odor character at the low setting and the high setting. Further, Composition 4B had an odor intensity of 3 at the low setting and 5 at the high setting, demonstrating there was a change in the intensity of the odor at the two temperatures, but a character change between the low and high setting of 1, indicating no odor character modification. This is confirmed by the lack of change between the odor characters at the low and high setting. This demonstrates that the combination of odor character modifying fragrance compounds and facilitator compounds influences the odor character profile of the compositions.

[0241] Example 5

[0242] As with Example 4, above, Compositions 5 A and 5B were formulated using the odor character modifying fragrance compounds and facilitator compounds. Composition 5A comprises the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate. 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one, and hexyl acetate, while Composition 5B omits the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, and 7- methyl-2H-benzo-l,5-dioxepin-3(4H)-one. The two compositions are shown in Table 6, below.

[0243] Table 6.

[0244] The odor character of Compositions 5A and 5B at a low and high setting were evaluated using the same methods as Example 4, above. Table 7.

[0245] As shown in Table 7, Composition 5A had a character change of 3 indicating an odor character modification, with a different odor character at the low setting and the high setting. Further, Composition 5B had an odor intensity of 1 at the low setting and 4 at the high setting, demonstrating there was a change in the intensity of the odor at the two temperatures, but a character change between the low and high setting of 1, indicating no odor character modification. This is confirmed by the lack of change between the odor characters at the low and high setting. This demonstrates that the combination of odor character modifying fragrance compounds and facilitator compounds influences the odor character profile of the compositions.

[0246] Example 6

[0247] As with Example 4, above, Compositions 6A and 6B were formulated using the odor character modifying fragrance compounds and facilitator compounds. Composition 6 A comprises the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, and hexyl acetate, while Composition 6B omits the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a- hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole and ethyl maltol. The two compositions are shown in Table 8, below.

[0248] Table 8.

[0249] The odor character at a low and high setting of Compositions 6A and 6B were evaluated using the same methods as Example 4, above. Table 9.

[0250] As shown in Table 9, Composition 6A with had a character change of 4 indicating an odor character modification, with a different odor character at the low setting and the high setting. Further, Composition 6B had an odor intensity of 2 at the low setting and 4 at the high setting, demonstrating there was a change in the intensity of the odor at the two temperatures, but a character change between the low and high setting of 1, indicating no odor character modification. This is confirmed by the lack of change between the odor characters at the low and high setting. This demonstrates that the combination of odor character modifying fragrance compounds and facilitator compounds influences the odor character profile of the compositions. Example 7

[0251] As with Example 4, above. Compositions 7A and 7B were formulated using the odor character modifying fragrance compounds and facilitator compounds. Composition 7 A comprises the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4- dihydroxy-3,6-dimethylbenzoate, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate while Composition 7B omits the facilitator compounds (4aR,5R.7aS,9R)- octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l ,3-dioxole, coumarin, ethyl maltol, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, and (4-lert-butylcyclohexyl) acetate. The two compositions are shown in Table 10, below.

[0252] Table 10.

[0253] The odor character at a low and high setting of Compositions 7A and 7B were evaluated using the same methods as Example 4, above.

[0254] Table 11.

[0255] As shown in Table 11, Composition 7A had a character change of 4 indicating a significant odor character modification, with a different odor character at the low setting and the high setting. Further, Composition 7B had an odor intensity of 2 at the low setting and 4 at the high setting, demonstrating there was a change in the intensity of the odor at the two temperatures, but a character change between the low and high setting of 1, indicating no odor character modification. This is confirmed by the lack of change between the odor characters at the low and high setting. This demonstrates that the combination of odor character modifying fragrance compounds and facilitator compounds influences the odor character profile of the compositions.

[0256] Example 8

[0257] As with Example 4, above, Compositions 8A and 8B were formulated using the odor character modifying fragrance compounds and facilitator compounds. Composition 8 A comprises the facilitator compounds (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl- 4H-4a,9-methanozuleno|5,6-d]-l,3-dioxole, coumarin, ethyl maltol, gamma-nonalactone, and (4-tert-butylcyclohexyl) acetate while Composition 8B omits the facilitator compounds (4aR.5R,7aS,9R)-octahydro-2.2.5.8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3- dioxole, coumarin, ethyl maltol, and (4-tert-butylcyclohexyl) acetate. The two compositions are shown in Table 12, below.

[0258] Table 12. The odor character at a low and high setting of Compositions 8A and 8B were evaluated using the same methods as Example 4, above.

[0259] Table 13.

[0260] As shown in Table 13. Composition 8A had a character change of 3 indicating an odor character modification, with a different odor character at the low setting and the high setting. Further, Composition 8B had an odor intensity of 2 at the low setting and 4 at the high setting, demonstrating there was a change in the intensity of the odor at the two temperatures, but a character change between the low and high setting of 1, indicating no odor character modification. This is confirmed by the lack of change between the odor characters at the low and high setting. These demonstrate that the combination of odor character modifying fragrance compounds and facilitator compounds influences the odor character profile of the compositions.

[0261] Example 9

[0262] Compositions 9A-9E were formulated using the odor character modifying fragrance compounds, facilitator compounds, and additional fragrance compounds. The compositions are shown in Table 14, below7.

[0263] Table 14.

[0264]

[0265] The odor character at a low and high setting of Compositions 9A-9E were evaluated using the same methods as Example 4, above.

[0266] Table 15.

[0267] As demonstrated in Table 15. above, each of Compositions 9A-9E exhibited different odor character at the low setting and high setting, showing Compositions 9A-9E are odor character modifying accord compositions. Example 10

[0268] Compositions 10A-10E were formulated using the odor character modifying fragrance compounds, facilitator compounds, and additional fragrance compounds. The compositions are shown in Table 16, below. Table 16.

[0269]

[0270] The odor character at a low and high setting of Compositions 10A-10E were evaluated using the same methods as Example 4, above, and no modification in odor character from the low setting to the high setting was detected.

[0271] Example 11

[0272] Samples of Composition 7 A were placed into bottles, which were then heated to the high setting for 10 days, until the bottle was close to empty. The samples were then evaluated in an 800 cu. ft. booth on low. The same samples were then moved to another booth and evaluated on high to determine the character change. The character change of Composition 7A after 10 days was 3, on a scale of 1-5, only marginally less than when the sample was fresh. At the low setting, Composition 7A had an odor character of citrus and vanilla while at the high setting the sample had an odor character of amber. These odor character notes are consistent with the odor character notes when Composition 7A was fresh, as described in Table 11.

[0273] * * *

[0274] In addition to the various embodiments depicted and claimed, the disclosed subject matter is also directed to other embodiments having other combinations of the features disclosed and claimed herein. As such, the particular features presented herein can be combined with each other in other manners within the scope of the disclosed subject matter such that the disclosed subject matter includes any suitable combination of the features disclosed herein. The foregoing description of specific embodiments of the disclosed subject matter has been presented for purposes of illustration and description. It is not intended to be exhaustive or to limit the disclosed subject matter to those embodiments disclosed.

[0275] It will be apparent to those skilled in the art that various modifications and variations can be made in the systems and methods of the disclosed subject matter without departing from the spirit or scope of the disclosed subject matter. Thus, it is intended that the disclosed subject matter include modifications and variations that are within the scope of the appended claims and their equivalents.

[0276] Various patents and patent applications are cited herein, the contents of which are hereby incorporated by reference herein in their entireties.

Claims

WHAT IS CLAIMED IS:

1. An odor character modifying accord composition comprising: a. at least one odor character modifying fragrance compound in an amount of from about 0.1% to about 70% by weight of the accord composition; and b. at least one facilitator compound in an amount of from about 30% to about 99.9% by weight of the accord composition; wherein the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.001 Torr to about 20 Torr at 50 °C and of from about 0.05 Torr to about 65 Torr at 80 °C.

2. The odor character modifying accord composition of claim 1, wherein the at least one odor character modifying fragrance compound has a vapor pressure of from about 0.005 Torr to about 17 Torr at 50 °C and of from about 0.01 Torr to about 60 Torr at 80 °C.

3. The odor character modifying accord composition of claim 1, wherein the logarithm difference of the odor character modifying fragrance compounds is from about 0.5 to about 1.4.

4. The odor character modifying accord composition of claim 1. wherein the accord composition comprises at least one to at least thirteen odor character modifying fragrance compounds and at least one to at least eleven facilitator compounds.

5. The odor character modifying accord composition of claim 1, wherein the enthalpy of vaporization of the at least one odor character modifying fragrance compounds is from about 20 KJ / mol to about 120 KJ / mol.

6. The odor character modifying accord composition of claim 1, wherein the odor detection threshold of the at least one odor character modifying fragrance compounds is from about 0.0001 ng / L to about 4 ng / L.

7. The odor character modifying accord composition of claim 1, wherein the at least one odor character modifying fragrance compound is selected from the group consisting of 1 -(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8- tetramethyl-2-naphthalenyl)ethanone, dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l- b]furan, eugenol, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, 2,4-dimethyl-4-phenyltetrahydrofuran, 2-methoxy-3-(2-methylpropyl)pyrazine, ethyl 2-methylpentanoate, dicyclopentadiene propionate, ethyl 3-phenyloxirane-2-carboxylate, dodecanal, (4S)-4,8- dimethyl non-7-en-2-ol, and combinations thereof.

8. The odor character modifying accord composition of claim 1, wherein the at least one facilitator compound is selected from the group consisting of (4aR,5R,7aS,9R)-octahydro- 2.2.5.8.8.9a-hexamethyl-4H-4a,9-methanozuleno|5.6-dJ-l,3-dioxole. ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)- one, coumarin, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, hexyl acetate, vetiver Haiti. 2-methylundecanal, and combinations thereof.

9. The odor character modifying accord composition of claim 1 , further comprising additional fragrance compounds.

10. The odor character modifying accord composition of claim 9. wherein the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more floral compound(s), one or more fruity compound(s), one or more gourmand compound(s), one or more green compound(s). one or more marine compound(s), one or more mossy compound(s), one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s), one or more spicy compound(s), one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof .

11. The odor character modify ing accord composition of claim 1, further comprising at least one base, solvent, or combinations thereof.

12. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and eugenol; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS.9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-di oxole, coumarin, ethyl maltol, lemon oil, and hexyl acetate.

13. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. the odor character modifying compound l-(2,6,6-trimethyl-3-cyclohexen-l- yl)-2-buten-l-one; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS.9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, and hexyl acetate.

14. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate; and b. at least one facilitator compound selected from the group consisting of coumarin, ethyl maltol, lemon oil, gamma-nonalactone, and hexyl acetate.

15. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. the odor character modifying compound dodecahydro-3a,6,6,9a- tetramethylnaphtho[2, l-b]furan; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, and hexyl acetate.

16. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan and 1- (l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2-naphthalenyl)ethanone; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9-methanozuleno[5,6-d]-l,3-di oxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, gamma-nonalactone, (4-tert- butylcyclohexyl) acetate, and hexyl acetate.

17. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, 2,4- dimethyl-4-phenyltetrahy drofuran. 1 -(2,6.6-trimethyl-3-cy clohexen- 1 -yl)-2- buten-l-one, eugenol, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone, 6,6-dimethoxy-2,5,5-trimethylhex-2-ene, and ethyl 2- methylpentanoate; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, lemon oil, methyl 2,4-dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)- one. (4-tert-butylcyclohexyl) acetate, hexyl acetate, and 2-methylundecanal.

18. The odor character modifying accord composition of claims 1-11 , wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and ethyl 2-methylpentanoate; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, methyl 2,4- dihydroxy-3,6-dimethylbenzoate, (4-tert-butylcyclohexyl) acetate, and 2- methy 1 undecanal .

19. The odor character modifying accord composition of claims 1-11 , wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, ethyl 3- phenyloxirane-2-carboxylate, 2, 4-dimethyl-4-phenyltetrahy drofuran, l-(2,6,6- trimethyl-3-cyclohexen-l-yl)-2-buten-l-one. and ethyl 2-methylpentanoate; andb. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, coumarin, ethyl maltol, gammanonalactone, and (4-tert-butylcyclohexyl) acetate.

20. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecanal, l-(2,6,6-trimethyl-3-cyclohexen-l-yl)-2-buten-l-one, eugenol, and l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-dioxole, ethyl maltol, methyl 2,4-dihydroxy-3,6- dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)-one, gammanonalactone, and hexyl acetate.

21. The odor character modifying accord composition of claims 1-11, wherein the accord composition comprises: a. at least one odor character modifying compound selected from the group consisting of dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,l-b]furan, dodecanal, 2,4-dimethyl-4-phenyltetrahydrofuran, eugenol, dicyclopentadiene propionate, l-(l,2,3,4,5,6,7,8-octahydro-2,3,8,8-tetramethyl-2- naphthalenyl)ethanone. 6,6-dimethoxy-2,5,5-trimethylhex-2-ene and ethyl 2- methylpentanoate; and b. at least one facilitator compound selected from the group consisting of (4aR,5R,7aS,9R)-octahydro-2,2,5,8,8,9a-hexamethyl-4H-4a,9- methanozuleno[5,6-d]-l,3-di oxole, coumarin, ethyl maltol, methyl 2,4- dihydroxy-3,6-dimethylbenzoate, 7-methyl-2H-benzo-l,5-dioxepin-3(4H)- one, gamma-nonalactone, (4-tert-butylcyclohexyl) acetate, and hexyl acetate.

22. A fragrance composition comprising the odor character modifying accord composition of any of claims 1-21.

23. The fragrance composition of claim 22, further comprising additional fragrance compounds.

24. The fragrance composition of claim 23, wherein the additional fragrance compounds are selected from the group consisting of one or more animalic compound(s), one or more anise compound(s), one or more aldehydic compound(s), one or more balsamic compound(s), one or more citrus compound(s), one or more flor, al compound(s), one or more fruity compound(s), one or more gourmand compound(s), one or more green compound(s), one or more marine compound(s), one or more mossy compound(s), one or more musk compound(s), one or more mint compound(s), one or more pine compound(s), one or more powdery compound(s). one or more spicy compound(s). one or more woody compound(s), one or more herbal compound(s), one or more hay compound(s), and / or one or more camphoraceous compound(s), or combinations thereof..

25. The fragrance composition of claim 22. further comprising at least one base, solvent, or combinations thereof.

26. A consumer product comprising the odor character modifying accord composition of claims 1-21 or fragrance composition of claims 22-25.

27. A consumer product, wherein the consumer product controls the odor character profile of a fragrance composition, wherein odor character profile is controlled by: a. heating the fragrance composition to a first temperature, wherein a first odor is provided, and b. heating the fragrance composition to a second temperature, wherein a second odor is provided; wherein the fragrance composition comprises an odor character modifying accord composition comprising at least one odor character modifying fragrance compound and at least one facilitator compound.

28. A method of controlling the odor character profile of an accord composition, comprising: a. heating the accord composition to a first temperature, wherein at the first temperature the accord composition provides a first odor, andb. heating the accord composition to a second temperature, wherein at the second temperature the accord composition provides a second odor; wherein the accord composition comprises at least one odor character modifying fragrance compound and at least one facilitator compound.

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