41 results about "Methyl ionone gamma" patented technology

Described is a process and compositions for counteracting human sweat malodor. The compositions containing at least 10 weight percent of either 3,7-dimethyl-2,6-nonadienenitrile or 3,7-dimethyl-2,6-octadienenitrile. Additional ingredients may be added including napthyl methyl ether, methyl beta-naphthyl ketone, benzyl acetone, methanoinden propionates, methyl ionone, tetramethylnaphtho furan, ethylene glycol cyclic ester of dodecanedioic acid, 1-cyclohexadecen-6-one, 1-cycliheptadecen- 10-one, and corn mint oil. These compositions are applied to either fabric or a defined surface area of the human epidermis.

The present invention provides a liquid detergent composition, comprising: (a) a cleaning effective amount of an enzyme preferably selected from a proteolytic enzyme, an amylolytic enzyme, a lipolytic enzyme, a cellulolytic enzyme and mixtures thereof; (b) from 0.001 to 3% by weight of a perfume composition, not containing a perfume component selected from the group consisting of saturated and unsaturated linear aldehydes, lilial, cyclal c, vanillin, citral, cinnamic aldehyde, pulegone, terpinolene, gamma terpinene, alpha methylionone; (c) from 0.002 to 1% by weight of an antioxidant; and (d) a fatty acid soap in an amount of at most 4% by weight. Said detergent composition was found to have favourable storage stability characteristics.

Disclosed are oral care compositions effective to control mouth and breath malodour comprising in a pharmaceutically acceptable carrier, a combination of an antibacterial agent and a deodorizing or odor-neutralizing agent comprising a compound having the structurewherein R1, R2, R3, and R5 may be identical or different, each representing H, a linear or branched C1-C6 alkyl or alkenyl, phenyl, —OH or —ORa; R4 is —OH, —ORa, phenyl, or a linear or branched C1-C6 alkyl or alkenyl; and Ra is phenyl or a linear or branched C1-C6 alkyl or alkenyl. The odor-neutralizing agent may further comprise one or more of an additional odor-neutralizing compound selected from α-damascenone, α-isomethylionone, α-ionone, β-ionone, pulegone, piperitone, carvone, coenzyme Q10 or cinnamaldehyde.The antibacterial agent may comprise one or a mixture of a quaternary ammonium compound selected from cetylpyridinium chloride, tetradecylpyridinium chloride, N-tetradecyl-4-ethyl pyridinium chloride or domiphen bromide; metal ions such as stannous, zinc or copper; chlorhexidine; triclosan; triclosan monophosphate; or selected essential oils.

The method for synthesizing pseudoisomethyl ionone-intermediate product of perfume includes the following steps: in butanone-2, adding or no adding organic solvent, alkali or alkali earth metal hydroxide and inhibitor in turn, the mole ratio of alkali and citral is 0.75-0.9:1, the mole ratio of inhibitor and citral is 0.0101-0.02:1, and according to the mole ratio of citral and butanone-2 which is 1:7-13 drop-adding citral, dropp-adding time is 1-3 hr. reaction temp. is 20-40 deg.C and reaction time is 4-6 hr. After the reaction is completed, recovering solvent and butanone-2, using acetic acid or methyl formate to neutralize residual material to make pH by 6.5-6.8, washing with clean water, adding plasticizer in oil layer to make fractionation, addition quantity of plasticizer is 1-5% of oil layer weight, and obtain pseudoisomethyl ionone.

The invention discloses a high temperature resistance odorless peroxide rubber composition and a preparation method thereof. The peroxide rubber composition comprises the following components in part by weight: 100 parts of rubber, 5 parts of zinc oxide, 1 part of stearic acid, 4 parts of anti-aging agent, 5 parts of plasticizer, 2 to 5 parts of vulcanizing agent DCP (Dibasic Calcium Phosphate), 0.3 to 0.5 part of sulphur, 1.8 parts of cross-linking agent and 0.1 to 0.5 part of methyl ionone. The preparation method comprises the following steps of: starting an open mill or an internal mixer, firstly adding the rubber, then adding the zinc oxide, stearic acid and the anti-aging agent to refine, adding carbon black and the plasticizer to refine and carrying out discharging and standing; after softening the obtained sizing material, adding the vulcanizing agent DCP, the cross-linking agent and the sulphur into the sizing material to refine, carrying out discharging and standing, then adding the methyl ionone to refine and carrying out methyl discharging and standing; and finally, carrying out vulcanization. The high temperature resistance odorless peroxide rubber composition has simple formula, excellent heat resistance and low price and is easy to operate; the problem of odor generated in the vulcanizing process of the vulcanizing agent is solved; and the high temperature resistance odorless peroxide rubber composition is odorless, even is slightly fragrant.

A perfume composition includes groups of perfume components that produce enhanced sensory performance. The composition includes components that have synergistic odor properties. A perfume composition comprises at least four members selected from the group (1A) consisting of acetyl cedrene, Camphor powder synthetic, Cedarwood oil, cineole, cinnamic aldehyde (10), cistus labdanum, citral dimethyl acetal, Cosmone, Cyclal C, beta damascone (10), delta damascone (10), Ebanol (10), ethyl vanillin (10), eugenol, Galbanone (10), gamma undecalactone, heliotropin, hexyl cinnamic aldehyde, iso E Super, alpha iso methyl ionone, Mayol, methyl chavicol, methyl cinnamate, methyl ethyl 2 butyrate, Silvanone, Silvial, alpha terpineol, allyl hexanoate, Labienoxime (10), anisic aldehyde(10), Black Pepper Oil, Polysantol(10), Habanolide, dihydroeugenol, Melonal, Violetyne(10), methyl benzoate, Raspberry ketone, and mixtures thereof wherein the total amount of these members is from about 40% to about 80% by weight of the composition; and at least one member selected from the group (1b) consisting of alkyl alcohols, phenyl alkylalcohols, terpene hydrocarbons and mixtures thereof in amounts from about 5% to about 50% by weight of the composition.

The invention provides a lily essence for daily chemicals and a preparation method thereof. The lily essence is prepared from the following raw materials: cis-6-nonenol; kalong; ethyl vanillin; florhydral; cyanine; allyl cyclohexyloxyacetate; prenylacetate; pino acetaldehyde%; melonal%; allyl heptylate; styralyl acetate; matricaria ester; fructone; cis-3-hexenyl acetate; ligustral; geranyl acetate; geranyl acetate; Delta-Damascone; hexyl acetate; cis-3-Hexenyl salicylate; sandalore; ethyl-2-methylbutyrate; vanillyl alcohol; phenoxyethyl isobutyrate; allyl cyclohexanepropionate; methyl decenol; phenethyl alcohol; cyclamen aldehyde; verdyl acetate; isomethyl ionone; lemon oil; benzyldimethylcarbinyl butyrate; 2-tert-butylcyclohexanol acetate; iso E super; galaxolide stock solution; peach aldehyde; hexyl salicylate; Lily aldehyde; linalool; methyl dihydrojasmonate; and dipropylene glycol. The lily essence has fresh and penetrating top note, strong natural sense, full body note, good floral sense, and lasting basic note.

The invention discloses non-cyanide environment-friendly silver plating liquid, which is prepared from the following ingredients in concentration: 45 to 50g / L of silver nitrate, 15 to 20g / L of sodiumsulfate, 20 to 30g / L of potassium pyrophosphate, 15 to 25g / L of sodium pyrosulfite, 4 to 8mL of brightening agents, 12 to 20ml / L of regulating agents, 0.2 to 0.4ml / L of seasoning agents and 0.3 to 0.4ml / L of bacteriostatic agents, wherein the brightening agents are prepared from polyethyleneimine, imidazolyl propoxyl condensation compounds, azacyclo derivatives, modified aromatic aldehyde compounds, epoxy chloropropane and water; the seasoning agents are selected from at least one kind of materials in jasmine essence, methylionone, menthol, clove essential oil, geraniol and eugenol. The non-cyanide environment-friendly silver plating liquid has the advantages that the environment-friendly effect is achieved; the taste is fresh; pungent smell does not exist; the work environment comfort isimproved, so that employees are in a pleasant mood; the work efficiency is improved; a plating layer with good combination performance with plating elements, small plating layer stress, high compactness and good brightness can be obtained.

The invention discloses high-temperature resistance rose perfume and a preparation method thereof. The high-temperature resistance rose perfume is prepared from the following components according to apreset ratio: damascenone, damascone alpha, rose oxide, nonanol, geranium oil, vanillin, eugenol, sandal 208, benzyl acetate, ethyl phenylacetate, rosone, cinnamic alcohol, nerol, methyl cedryl ketone, 4-tert-butyl cyclohexyl acetate, geranyl acetate, benzyl benzoate, sandal 803, o-tert-butyl cyclohexyl acetate, geraniol, vanillin alcohol, phenylethyl alcohol, dipropylene glycol, an oak moss extractum, herba pogostemonis oil, tonalid, peach aldehyde, iso-mythyl ionone, bangalol radjanol, lilial, D-limonene, linalool, ambrotone, galaxolide and alpha-hexyl cinnamal. The rose perfume provided bythe invention is high in simulation degree and high temperature resistance ability.

The invention discloses a jasmine essence, which is characterized in that: the jasmine essence comprises the following components in percentage by weight: 30.0 to 35.0 percent of benzyl acetate, 0.8 to 1.0 percent of benzyl benzoate, 7.0 to 7.5 percent of linalool, 1.0 to 1.2 percent of alpha-methyl ionone, 7.0 to 7.5 percent of bergamio, 0.4 to 0.6 percent of alpha-terpineol, 5.0 to 7.0 percent of phenethyl alcohol, 4.0 to 5.0 percent of Jasminum grandiflorum absolute, 15.0 to 17.0 percent of benzyl alcohol, 0.4 to 0.6 percent of eugenol, 5.0 to 5.5 percent of hydroxycitronellal, 4.0 to 4.5 percent of ylang ylang oil, 5.0 to 6.0 percent of amyl cinnamaldehyde diethylacetal, 0.8 to 1.1 percent of aglaia oil, 1.6 to 2.0 percent of narcelo, 0.3 to 0.5 percent of indole and 1.8 to 2.0 percent of alpha-amyl cinnamaldehyde schiff's base. The jasmine essence with the formula is suitable for fragrant products such as white cream, lotion, fragrant molasses and the like, does not have the defect of color change, and has the advantages of pure and rich fragrance, strong persistance, low consumption and the like.

The present invention provides a perfume composition for mental control, the composition containing one or more components acknowledged as having a psycho-sedative effect selected from the group consisting of terpinyl butyrate, γ-nonalactone, acetyl isoeugenol, methyl anisate, terpineol, nerol, chrysanthenone, lyral, lilial, β-phenylethyl alcohol, γ-methyl ionone, Iso E Super, Z-3-hexenyl salicylate, p-methylphenylacetaldehyde, limonene, ocimene, helional, linalyl acetate, geranyl acetate, geraniol, hedione, linalool, citronellol, and γ-hexalactone and / or one or more components acknowledged as having a psycho-stimulative effect selected from the group consisting of piperitone, isoamyl angelate, phenylethyl angelate, cuminyl alcohol, menthalactone, ethyl myristate, and perilla aldehyde. The invention also provides an external composition and daily-use goods, containing the perfume composition for mental control.

The invention provides essential oil. The essential oil can be used for preparing mosquito repelling, itching relieving and antibacterial medicines and medicines for treating and preventing acne. A composition is good in treatment effect, controllable in quality and easy to apply. The essential oil comprises the following active ingredients by weight percentage: 5-25% of menthol, 5-20% of methyl salicylate, 0.1-5% of camphor, 0.1-5% of eucalyptus oil, 0.1-5% of eugenol, 1-5% of citronellyl acetate, 2-10% of phenethyl acetate, 5-20% of citronellol, 20-50% of geraniol, 1-5% of geranialdehyde, 1-5% of rose oxide, 1-5% of geranium oil and 1-5% of isomethyl ionone.

The invention relates to a cigarette essence capable of improving the quality of cigarettes. The cigarette essence comprises alcohol, an apple peel extract, a tomato extract, a platycodon grandiflorum extract, vanillin, bergamot oil, methyl ionone, cinnamon oil, phenylethyl propionate and propylene glycol. The cigarette essence provided by the invention has the effects of causing smoke to be fine and smooth, and clean in remaining taste, reducing irritation and keeping moisture; therefore, the quality of cigarettes is improved.

The invention discloses cat-driving essence as well as a preparation method and an application thereof. The cat-driving essence is obtained by adding a certain amount of bergamot oil, lemon oil, citral, linalyl acetate, sweet orange oil, terpilenol, terpinyl acetate, methyl ortho-aminobenzoate, decanal, geranyl acetate, lemonile, geranium oil, menthol, benzyl acetate, benzyl alcohol, linalool, dihydro jasmine with mass fraction of 10%, hydroxycitronellal, benzpyrole with mass fraction of 10%, dihydromyrcenol, methyl ionone, lyral, oil of daidai leaf, ylang ylang oil, gamma-delta-lacton, leaf alcohol, benzyl benzoate, benzyl propionate, methyl dihydrojasmonate, p-cresyl acetate, jasmonyl, phenylacetic acid, eugenol, myracaldehyde, absolute of jasmine, geraniol, cis-3-hexenyl benzoate, galaxolide with mass fraction of 50% and propylene glycol into a container in sequence, shaking uniformly, standing and ageing for two weeks. The cat-driving essence is remarkable in cat-driving effect.

The invention relates to a method for simultaneously determining residual quantities of sixteen sensitized aldehyde and ketone perfumes in a toy, and firstly discloses a method for simultaneously determining the residual quantities of the sixteen sensitized aldehyde and ketone perfumes consisting of 5-methyl-2,3-hexanedione, trans-2-heptenal, trans-2-hexenaldimethylacetal, citral, cinnaldehyde, hydroxycitronellal, benzalacetone, 2,4-dihydroxy-3-methylbenzaldehyde, alpha-isomethylionone, lilial, 6,10-dimethyl-3,5,9-undecatrien-2-one, 4-(4-methoxyphenyl)-3-butylene-2-one, alpha-amyl cinnamic aldehyde, lyral, 1-(4-methoxyphenyl)-1-pentene-3-one, and hexylcinnamaldehyde in the toy to fill the technological blank. The method which allows cloth toys, paster toys, and plastic toys (the ABS material, the PVC material and the PS material) to be detected has the advantages of wide coverage and strong applicability. The method which adopts the ion trap-mass spectrum in a qualitative and quantitative secondary mass spectrum MS / MS mode has a good qualitative and quantitative capability to complex matrix toy samples.

The invention relates to the field of essence, and particularly discloses oriental flower flavored essence and a preparation method thereof. The oriental flowery flavor essence consists of a main flavor, a modifier, a mixing agent, a fixative and a solvent. The main flavor is prepared from the following components: linalool, benzyl alcohol, phenethyl alcohol, benzyl acetate, methyl anthranilate, methyl benzoate, methyl salicylate, iso-methyl ionone, alpha-hexylcinnamic aldehyde, anisic aldehyde, hydroxycitronellal, undecan-4-olide, specially pure vanillin, ethyl maltol, eugenol and limonene. The modifier is prepared from the following components: cinnamic alcohol, rose ether and cedar wood oil. The oriental flower flavored essence has the advantages that the oriental flower flavored essence has a comfortable and natural feeling while generating complicated fragrance change.

The invention discloses laundry detergent essence added with levocitronellyl nitrile. The laundry detergent essence is composed of, by mass, 0.1% of deca-aldehyde, 0.15% of methyl nonyl acetaldehyde, 0.05% of allyl hexylate, 0.5% of allyl phenoxyacetate, 1% of amyl cinnamaldehyde, 0.5% of mugwort oil, 1.5% of benzyl acetate, 8% of benzyl salicylate, 4% of citronellol, 4% of galaxolide, 2% of geraniol, 0.5% of geranyl acetate, 11.2% of methyl dihydrojamonate, 8% of alpha-hexyl cinnamaldehyde, 1.5% of isoborneol acetate, 2.5% of lilial, 8% of linalool, 8% of linalyl acetate, 1% of methyl ionone, 7% of sweet orange oil, 3% of phenethyl alcohol, 1% of levo-cymbopogon and 23.75% of dipropylene glycol. The laundry detergent essence is stable in structure, compound in aroma, capable of releasing aroma layer by layer, novel in aroma and lasting in aroma.

The invention relates to a watermelon essence for oil-based ink. The watermelon essence is prepared from watermelon essence, maltodextrin and starch sodium octenylsuccinate, wherein the watermelon essence is prepared from leaf alcohol, hexenyl acetate, ligustral, phenyl acetaldehyde dimethyl acetal, methyl heptenone, trans-2-hexenal, nonadienaldehyde, melonal, ethyl caprylate, ethyl isovalerate, hexyl acetate, allyl cyclohexanepropionate, benzyl alcohol, linalool, citronellol, geraniol, Alpha terpneol, phenethyl alcohol, hydroxycitronellal, lilial, heliotropin, citral, dimethylbenzylcarbinyl acetate, vanillin, alpha-damascenone, isomethyl ionone, verdyl acetate, linalyl acetate, linalyl acetate, styralyl acetate, phenethyl acetate, phenethyl isobutyrate, phenoxyethyl isobutyrate, terpinyl acetate, n-pentyl salicylate, benzyl benzoate, benzyl salicylate and Brazil orange oil. The invention also provides a preparation method for the watermelon essence for the oil-based ink. According to the watermelon essence and the preparation method, the fragrance retention effect and the oil solubility of the essence are improved.

The invention discloses a flowery flavor perfume composed of the following raw materials: santalol, tarragon, vanillin, angelica sinensis, muscone, salvia sclarea l., synthetic musk, vetiver, ambrein, linalool, pogostemon cablin, lavender, isoeugenol, coumarin, methylionone, heliotropin, methyl atratate, cananga odorata, bergamot, cinnamon acetate, jasmine, benzoin, rose, ethanol, and wintergreen oil. The perfume prepared by the method has elegant fragrance, is capable of increasing woman confidence, and is especially suitable for ordinary women to use.

The invention provides cape jasmine flower essence. The cape jasmine flower essence is prepared from 10% leaf alcohol, 10% cis-3-hexenyl acetate, 10% methyl 2-nonynoate, 10% dihydrojasmone, 10% rose oxide, 10% indole, 10% dodecyl aldehyde, 10% undecenal, undecan-4-olide, terpineol, linalool, michelia alba leaf oil, methyl dihydrojasmonate, alpha-hexylcinnamaldehyde, benzyl acetate, ionone, methylionone, phenethyl ethanol, phenylacetaldehyde, phenylethyl acetate, styralyl acetate, 1-phenylethyl propionate, tetrahydrogeraniol, rhodinol, dihydromyrcenol, lily aldehyde, benzyl propionate, isoeugenol, eugenol, lyral, galaxolide, ylang-ylang oil, patchouli oil and propylene glycol. The cape jasmine flower essence has sweet and rich fragrance of cape jasmine flowers and coordinated and long-lasting fragrance.

The invention discloses a michelia alba-beaver essence. The components of the essence comprise linalool, alpha-pentyl cinnamyl aldehyde schiff base, bergamio, benzyl acetate, benzyl alcohol, michelia alba concrete, allyl caproate, Cananga odorata essence base, alpha-hexyl cinnamyl aldehyde, tree orchid oil, phenethyl alcohol, lyral, purple perilla oil, acetic acid p-cresol ester, benzyl salicylate, celestolide, musk 105, musk ketone, labdanum concrete, coumarin, piperonal, ethyl vanillin, civet essence base, oil of daidai leaf, alpha-irisone, methyl irisone, balsamroot oil, Japan cypress wood oil, sandalwood 803, cinnamyl alcohol, Anaphalis margaritacea Benth.et Hook oil, oakmoss extract and storax resin. The michelia alba-beaver essence of the invention is fit for the perfuming products such as white grease, emulsion, shampoo, and the like, and has the advantages of pure fragrance, strong durability, less dosage, and the like.

The invention relates to anantiperspirant dew, belonging to the technical field of daily chemical products. The anantiperspirant dew comprises components of propylene glycol, polysorbate, benzyl alcohol, hydroxycitronellal, magnesium chloride, vitamin C, essence, methylionone, aluminum chloride, magnesium nitrate and deionized water. The anantiperspirant dew is prepared by blending the above components according to a certain proportion. The anantiperspirant dew is not added with alcohol and other harmful substances during a preparation process, and is mild and non-stimulating. The anantiperspirant dew can effectively weaken much too heavy sweat smell caused by sweaty wet, rapidly decompose toxic substance in the sweat, and balance pH of part skin after being used, people feeling dry, comfortable and cool, and is suitable for easily-sweating and over-sweating people to use, being quite ideal in effect.

The invention discloses Clausena lansium(Lour.)Skeels extract-containing tobacco flavor and a preparation method and application thereof, and relates to the technical field of tobacco flavor. The Clausena lansium(Lour.)Skeels extract-containing tobacco flavor includes the following components: in parts by weight, 20-50 parts of alcohol of 95% by volume, 5-20 parts of Clausena lansium(Lour.)Skeelsfruit extract, 7-25 parts of Clausena lansium(Lour.)Skeels leaf extract, 0.2-0.8 part of ethyl maltol, 3-8 parts of tree moss concentrate, 0.5-3 parts of tobacco extract, 0.1-0.3 part of methylionone,10-30 parts of honey and the balance propylene glycol, wherein the total weight is 100 parts. The Clausena lansium(Lour.)Skeels extract-containing tobacco flavor can give cigarettes obvious characteristic aroma, the aroma is harmonious and natural, and the texture and sharpness of the aroma are improved; green, ripe and sweet aroma, freshness and elegance are added, so that the overall quality ofcigarette smoking is improved.

The invention relates to a flavor additive for improving taste of cigarette based on a dilution ventilation technology. The adopted technical scheme is as follows: the flavor additive is characterized by comprising the following raw materials: geranium oil, citronellol, phenyl ethyl acetate, rose oil, geraniol, methyl ionone, clove oil, rhodinol, phenylacetaldehyde dimethyl acetal, pearl everlasting oil, phenethyl alcohol, a plum extract, nonanal, cognac oil, a sea-buckthorn liquid extract, a green bean extract, trehalose, octadecanol in an oily substance, polyalcohol, honey, glycerin, vitamin C and animal amine. In the flavor additive, the tobacco extracts, the tobacco aroma substances and the plant extracts are taken as the main raw materials, and a plurality of monomers and plate flavors are comprehensively combined, thus obviously concealing and improving odor in dark tipping paper and achieving good coordination with the cigarette, wherein the 'green bean extract' has thes function of improving the taste, and the 'trehalose' has the function of realizing soft, clear and humid smoke.

The invention discloses a violet mignonette essence which is characterized by containing the components in percentage by weight: 10.0-11.0 percent of mignonette base, 27-30 percent of Convallaria maialis base, 1.0-1.2 percent of jonquil absolute, 3.0-3.2 percent of ylang-ylang oil, 1.0-1.2 percent of orange oil, 1.5-1.8 percent of delta-methyl ionone, 1.0-1.2 percent of coriander oil, 2.1-2.3 percent of jasmine absolute, 10.0-11.0 percent of cyclamen aldehyde, 0.5-0.7 percent of flora merolia group, 1.0-1.2 percent of violet mignonette absolute, 0.8-1.0 percent of cedrat wood oil, 10.0-11.0 percent of jasmine base, 0.1-0.2 percent of violet leaf absolute and 1.5-2.0 percent of musk ketone. The violet mignonette essence of the formula is suitable for aromatized products of white creams, emulsions, aromatic molasses and the like, does not have color change and has the advantages of pure and rich fragrance, strong durability, extremely low consumption and the like.

The invention discloses an external additive, application thereof and an external skin product, and relates to the field of cosmetics. The external additive comprises the following active ingredients: at least one of hexylcinnamyl aldehyde, alpha-iso-methyl ionone and cyclohexadecanone. According to the external additive and the skin external product provided by the invention, at least one of the effective components including the hexylcinnamyl aldehyde, the alpha-iso-methyl ionone and the cyclohexadecanone is used for promoting skin regeneration and collagen synthesis, so that the external additive and the skin external product are effectively used for skin regeneration, prevention of skin wrinkles and skin elasticity reduction or improvement of aging; the external additive can be applied to cosmetics and skin care products.

The invention discloses methylionone and a preparation method of a methylionone intermediate. According to an existing preparation method of methylionone, a lot of alkali usually needs to be wasted, and on the other hand, a lot of three wastes are caused. Under the conditions that citral and butanone serve as raw materials, PEG serves as a solvent and metal hydroxide serves as a condensation agent, an Aldol condensation reaction is conducted, and false methylionone is synthesized; the obtained false methylionone is subjected to a cyclization reaction catalyzed by acid, and methylionone is synthesized. According to methylionone and the preparation method of the methylionone intermediate, an adopted PEG-M(OH)x catalysis system improves the synthesis efficiency of the false methylionone, and the ratio of the false methylionone is kept at 68-79%; moreover, an adopted phosphoric acid-normal hexane catalytic cyclization system greatly improves the cyclization yield; an adopted catalytic condensation system can be used indiscriminately for several times, so that the cost is reduced, and environmental pollution is also reduced.

The invention relates to the field of flavors and fragrances, and particularly discloses a fragrance fixing composition for chypre fragrance, a preparation method and application thereof The fragrance fixing composition for chypre fragrance comprises the following components: isoamyl o-hydroxybenzoate, coumarin, isomethyl ionone, synthetic oak moss, clear wood, firsantol, musk T, a mixture, and methyl dihydrojasmonate. The preparation method comprises the following steps: (1) taking coumarin, synthetic oak moss and methyl dihydrojasmonate, heating and stirring until the materials are dissolved to obtain a first mixture; (2) uniformly stirring iso-methyl ionone, clear wood, musk T, firsantol, isoamyl o-hydroxybenzoate and a mixture with the first mixture to obtain a second mixture; and (3) refluxing and standing the second mixture to obtain the fragrance fixing composition for chypre fragrance. The fragrance fixing composition for chypre fragrance can be used for essence and has the advantage of keeping the smell stable; and the preparation method disclosed by the invention has the advantage that the chypre fragrance is stable.