24 results about "Methyl dihydrojasmonate" patented technology

To provide compounds having ant behavior inhibitory activity, and repellents and pest control agents containing the same. [Solution] An ant behavior inhibitor characterized by containing at least one compound selected from the group consisting of indole, methylheptenone, and methyl dihydrojasmonate.

The present invention discloses a special nutrient solution for Chinese rose, its preparation method and application method, belonging to the technical field of garden planting. Calculated by weight parts, the special nutrient solution for Chinese rose includes 30-150 parts of angelica polysaccharide powder, 5-10 parts of diammonia enzyme, 5-10 parts of methyl dihydrojasmonate, 100-300 parts of organic carbon solution and 500-800 parts of water. The present invention promotes the accumulation of anthocyanins in Chinese rose through various ways, maintains the red flower color of Chinese rose, and achieves the technical effect of improving the ornamental value of Chinese rose.

The invention relates to the technical field of cosmetics, and particularly discloses anti-wrinkle cream containing sequoia stem fermentation products and a preparation method of the anti-wrinkle cream. The wrinkle removing cream containing the sequoia stem fermentation product is prepared from the following raw materials in percentage by mass: a material A: glycerol, butanediol, p-hydroxyacetophenone YS028, an ammonium acryloyldimethyl taurate / VP copolymer, p-hydroxyacetophenone YS008 and the balance of water; the material B is prepared from cetostearyl alcohol, an emulsifying agent MONTANOV202, butyrospermum parkii butter, isopropyl myristate, C10-18 fatty acid triglyceride, polydimethylsiloxane, ethylhexyl palmitate and XIAMETERPMX-0345Z Fluid; the material C is prepared from a material D and a material E; the material C is prepared from a sequoia stem fermentation product, Naturalpenet 2020 and SEPIGEL305; the material D is prepared from YONOME SPE II, Alps mountain leucas, ULA-L1004 coated ceramide, anti-wrinkle base peptide, super-oinmetidyl-D2, Chinese prescription hexyl A powder, XYREPIOR, annoine TM, essence and methyl dihydrojasmonate; the material D is prepared from YONOME SPE II, Alps mountain leucas, ULA-L1004 coated ceramide, anti-wrinkle base peptide, super-oinmetidyl-D2, Chinese prescription hexyl A powder, XYREPIOR, annoine TM In addition, the preparation method has the advantage of improving the wrinkle removing effect of the wrinkle removing cream.

The invention relates to a fragrance composition for relieving mood of children as well as a preparation method and application of the fragrance composition. The fragrance composition is prepared from the following components in percentage by weight: 40 to 60 percent of methyl dihydrojasmonate, 30 to 50 percent of brazyl acid glycol cyclic ester, 1 to 10 percent of terpinyl dihydroacetate, 1 to 10 percent of tetrahydrolinalool and 1 to 5 percent of methyl cedryl ketone. Compared with the prior art, the emotional soothing fragrance has universality (can be used for cosmetics of various dosage forms), the emotional soothing effect is achieved by reducing the heart rate, breath and the like used by children, meanwhile, the brain wave alpha / beta power is improved, and the soothing and nerve soothing effect is achieved.

The invention belongs to the technical field of artificial leather, and particularly relates to an essence mixture, fragrant PVC (polyvinyl chloride) leather and a preparation method thereof. The essence premix is added into the formula for modification, so that the prepared artificial leather can release fragrance for a long time. The essence premix comprises essence methyl dihydrojasmonate and tridecanedioic acid cyclic ethylene glycol diester, and the mass ratio of the methyl dihydrojasmonate to the tridecanedioic acid cyclic ethylene glycol diester is 1: (1-4). A small amount of essence is added in the formula, the fragrance emitted by the essence can effectively shield the smell of the raw materials, special equipment is not needed for production, special treatment is not needed, and the product cost can be effectively reduced; the fragrant PVC leather prepared by the invention can effectively control the volatilization amount and the volatilization speed of the fragrance of the essence. The fragrance duration is effectively prolonged, and the effect of slowly releasing fragrance for a long time is achieved.

The invention discloses a preparation method of methyl dehydrojasmonate, and belongs to the technical field of carbocyclic compounds, the method comprises the following steps: bromination reaction, debromination reaction and post-treatment; the bromination reaction method comprises the following steps: mixing dihydro jasmonic acid methyl ester alkenyl ester, a boron trifluoride diethyl etherate complex and a solvent, cooling the system to 9-11 DEG C after mixing is completed, dropwise adding a bromine solution into the mixed system, and controlling the bromine dropwise adding time to be 5.8-6.2 hours; after the bromine is dropwise added, 4-dimethylaminopyridine is added, the system temperature is kept at 9-11 DEG C, the reaction is continued for 3.8-4.2 h, and after the reaction is finished, a bromination reaction filtrate is filtered and collected. According to the methyl dehydrojasmonate prepared by the method disclosed by the invention, the purity of the product is 99.1 to 99.4 percent, and the final yield is 89.8 to 93.1 percent.

The invention belongs to the technical field of spice raw material synthesis, and particularly relates to a synthesis method of methyl cis-dihydrojasmonate, which comprises the following steps: dissolving 1-heptyne in toluene, discharging into a first reaction tank, adding a cobalt catalyst, and discharging 1-bromine-ethylene and carbon monoxide gas into the first reaction tank; adding triphenylphosphine into a first catalyst recovery tank, discharging catalyst precipitates, and carrying out sectional distillation to distill, cool and recover 1-heptyne; absolute methanol is discharged into the layering tank; dimethyl malonate is discharged into a second reaction tank, sodium methoxide is slowly added, an addition reaction is carried out at the temperature of-5 DEG C to 0 DEG C, and then heating is carried out for a decarboxylation reaction; 4-bromo-dihydrojasmonic acid methyl ester obtained by distillation is discharged into a third reaction tank; and discharging methyl jasmonate with alpha, beta-double bonds into a fourth reaction tank for reaction. By simplifying the steps, improving the recovery rate of the catalyst and realizing continuous production, the problems of high cost, low yield, low recovery rate of the catalyst and the like in preparation of the methyl cis-dihydrojasmonate in the prior art are solved.

The application relates to the technical field of daily chemicals, and particularly discloses a bacteriostatic and deodorizing fragrance composition as well as a preparation method and application thereof. The bacteriostatic and deodorizing fragrance composition is made of raw materials and comprises the following components: a chemical reaction type deodorizing fragrance base, a sensory modification and receptor blocking fragrance base and a bacteriostatic synergistic fragrance base. The chemical reaction type deodorizing fragrance base is a combination of one or more of citral, citronellal, decanal, damascone, ionone and methyl dihydrojasmonate; the sensory modification and receptor blocking fragrance base is a combination of one or more of menthol and its derivatives, linalyl acetate, dihydromyrcenol and eucalyptol; and the bacteriostatic synergistic fragrance base is a combination of one or more of farnesol, eugenol, thymol, tea tree oil and rosemary extract. The bacteriostatic and deodorizing fragrance composition can keep a better balance and coordination of the sensory modification, chemical deodorization and bacteriostatic components in the fragrance, and thus can exert excellent deodorization and bacteriostatic effects.

The invention relates to the technical field of daily chemical essence, and particularly discloses mild low-sensitivity essence for a child nursing product and a preparation method of the mild low-sensitivity essence. The invention relates to mild low-sensitivity essence for a child care product. The mild low-sensitivity essence is prepared from the following raw materials in parts by weight: 5-10 parts of methyl dihydrojasmonate, 10-50 parts of an essence solvent, 10-50 parts of ambrotone, 1-5 parts of musk T, 1-5 parts of lily pyran, 1-5 parts of a galaxolide stock solution and 1-5 parts of ethyl linalool. The preparation method comprises the following steps: uniformly stirring and mixing the raw materials in a stirring container, and homogenizing the obtained mixed liquid at high pressure. When the mild low-sensitivity essence for the child nursing product is applied, fragrance can be stably released, and the fragrance holding time is prolonged.

The invention discloses a sweetening type composite floral compound additive and an application method thereof, and belongs to the technical field of food additives. The additive comprises erythritol, anhydrous citric acid, propylene glycol and a compound floral compound in a mass ratio of 5: 0.005: 0.01: (0.000175-0.004), wherein the compound floral compound is selected from at least three of alpha-ionone, beta-ionone, neryl acetate, nerol, nerolidol, terpinenol, farnerol and methyl dihydrojasmonate. By compounding three or more aroma substances and utilizing multiple aromas to synergistically influence taste perception, the effective sweetening effect can be realized on the premise of remarkably reducing the sugar consumption, and meanwhile, the taste comfort is improved. The method not only provides important reference for researching sweetening effects of different fragrances, has scientific research guidance value, but also provides a new strategy for realizing sugar reduction and gaining through aroma regulation and control for food industry, can respond to health requirements while maintaining flavor and taste, and has wide application prospect.

The invention relates to a composite catalyst, a preparation method thereof and application of the composite catalyst in production of methyl cis-dihydrojasmonate. The composite catalyst comprises a carrier and an active component loaded on the carrier, the active component comprises a complex formed by active metal and an organic ligand; the active metal comprises main active metal and auxiliary metal; the organic ligand comprises a pyridine carboxamide compound. The composite catalyst provided by the invention is used for a synthesis process of methyl cis-dihydrojasmonate, the selectivity is high, the operation is simple, and the obtained methyl cis-dihydrojasmonate has excellent fragrance.

The invention belongs to the field of food additives, and particularly discloses a blended houttuynia cordata flavor essence and a preparation method thereof.The blended houttuynia cordata flavor essence comprises, by mass, 3%-6% of 2-decenal, 2%-5% of 2-nonenal, 2%-6% of 2, 4-dihydroxy-2-methyl-1, 3-pentanedione, 1%-3% of 2, 4-dihydroxy-2, 4-pentanedione, 1%-3% of The formula comprises the following components in percentage by weight: 1%-3% of 1, 4-decadienal, 3%-5% of 2-decanone, 1%-3% of lauric aldehyde, 1%-2% of myrcene, 4%-7% of beta-caryophyllene, 0.5%-1.5% of cis-3-hexene-1-ol, 2%-3% of 2-hexenal, 2%-5% of linalool, 0.5%-1.5% of 1-octylene-3-ol, 0.5%-1.5% of perillaldehyde, 2%-3% of 2-amyl furan, 1%-3% of eucalyptus oil, 1%-2% of eugenol and the balance of water. The composition is prepared from 0.5%-1.5% of methyl dihydrojasmonate, 3%-5% of cis-6-nonene-1-ol, 1%-3% of 2-acetylpyridine, 1%-3% of cis-6-nonene-1-ol, 1%-3% of 2-acetylpyridine, 1%-3% of cis-6-nonene-1-ol, 1%-3% of vetiver oil and the balance of caprylic capric triglyceride. The blended houttuynia cordata flavor essence is prepared from the monomer spice for food, and has the characteristics of obvious characteristic fragrance, strong natural feeling, long fragrance retention time and high temperature resistance.

The present application relates to the field of flavors and fragrances, and specifically discloses a mood-comforting air-scented fragrance and a preparation method thereof. A mood-comforting air-scented fragrance, comprising the following components in parts by weight: 0.1-1 part of nerol; 0.1-1 part of citral; 0.1-1 part of red tangerine oil; 0.5-1 part of cyclohexadecenone; 10-15 parts of ambergris; 0.1-1 part of white lemon oil; 0.5-1 part of ethyl ionone; 5-10 parts of musk T; 2-10 parts of methyl dihydrojasmonate; 11-18 parts of soothing composition; 3-5 parts of ethyl linalool; 50-60 parts of isopropyl myristate; its preparation method is: each raw material is placed in a stirring container and stirred and mixed, and after stirring and mixing evenly, the obtained mixed liquid is subjected to high-pressure homogenization to obtain a mood-comforting air-scented fragrance. The mood-comforting air-scented fragrance of the present application has excellent low-temperature storage resistance and a stable and excellent overall fragrance release effect.

The invention relates to the technical field of essence, and particularly discloses an essence composition for oral care and cleaning and a preparation method thereof. The invention discloses an essence composition for oral care and cleaning. The essence composition is prepared from the following raw materials in parts by weight: 5-10 parts of linalool, 5-10 parts of dementholized peppermint oil, 10-50 parts of synthetic menthol, 10-50 parts of an essence solvent, 1-5 parts of methyl dihydrojasmonate, 1-5 parts of benzyl acetate, 1-5 parts of phenethyl alcohol, 1-5 parts of linalyl acetate and 1-5 parts of cis-jasmonone. The preparation method comprises the following steps: uniformly stirring and mixing the raw materials in a stirring container, and homogenizing the obtained mixed liquid at high pressure. The essence composition for oral care and cleaning can keep the fragrance stability when being influenced by saliva washing, chewing activity and pH value change, so that the fragrance retention time of the essence after the application of the oral care and cleaning product can be remarkably prolonged, the fragrance can be retained in the oral cavity for a long time, and the oral cavity can be continuously kept fresh.

The application discloses a compound essential oil composition for improving concentration and enhancing memory and application thereof, and belongs to the technical field of daily-use chemicals. The composition is prepared from rosemary leaf oil, musk grass oil, hot mint oil, blue eucalyptus leaf oil, white orchid leaf oil, methyl 2, 4-dihydroxy-3- (2-hydroxypropyl) benzoate, lemon peel oil, white orchid oil, calamus root extract and angelica root extract according to specific weight percentages, and is added and homogenized in steps according to the order of component viscosity and volatility. Animal experiments prove that the composition can significantly improve the space learning and memory ability of a cognitive impairment model mouse, and the escape latency and invalid exploration behavior of the mouse are significantly reduced. Human efficacy tests show that single sniffing can improve the mean value of the power spectrum density of the brain concentration related beta wave, shorten the Stroop test reaction time, reduce the error rate, and significantly improve the concentration ability. The composition can be prepared into aromatherapy liquid, massage paste and other products, and is used for safely and quickly improving concentration and cognitive function, and has significant application value.

The invention discloses a simple and convenient synthesis method of methyl dihydrojasmonate. The methyl dihydrojasmonate is synthesized under the action of trimethylchlorosilane; according to the method, a Reformatsky reagent generated by 2-methyl bromoacetate and activated zinc powder in situ and 2-amyl-2-cyclopentenone are subjected to a Michael addition reaction, and methyl dihydrojasmonate is directly obtained. The method has the main advantages that 2-pentyl-2-cyclopentenone is used as a raw material, methyl dihydrojasmonate can be obtained only through one-step reaction, and the yield reaches up to 97%. Compared with the traditional production method of methyl dihydrojasmonate, the method provided by the invention has the advantages of short route steps, high efficiency and high atom economy, and is suitable for industrial production of methyl dihydrojasmonate.

A deodorant aerosol composition comprising an activated aluminium sesquichlorohydrate, a C10-C14 linear hydrocarbon and a fragrance comprising one or more components selected from limonene, dihydromyrcenol, benzyl acetate, citronellol, linalyl acetate, alpha-methyl ionone, gamma undecalactone, methyl dihydrojasmonate, and hexyl cinnamal.

The invention provides a spice composition with fermented fruit juice fragrance, flower fragrance and radix aucklandiae as well as a preparation method and application of the spice composition. The perfume composition is prepared from the following components: 0.15 to 0.35 wt% of ethyl isovalerate, 0.15 to 0.35 wt% of phenethyl acetate, 0.15 to 0.35 wt% of ethyl butyrate, 0.3 to 0.5 wt% of propionic acid, 0.5 to 0.7 wt% of ethyl propionate, 1.5 to 3.0 wt% of nodular pomelo methane, 3.0 to 5.0 wt% of methyl anthranilate, 5.0 to 10.0 wt% of citrus essential oil, 0.2 to 0.4 wt% of ethyl levulinate, 1.0 to 2.0 wt% of ethyl maltol, 0.15 to 0.35 wt% of linfanglilian base, 10.0 to 15.0 wt% of methyl dihydrojasmonate, 10.0 to 15.0 wt% of musk T and 0.15 to 0.35 wt% of ombrox. And the balance of auxiliary spices and / or dispersants and / or stabilizers. The perfume composition realizes delicate construction of aroma levels and precise expression of olfactory images, can be used for daily chemical products and presents a complete aroma framework of front-adjusted fermented fruit juice aroma, middle-adjusted dried petal aroma and tail-adjusted quiet wood aroma.

The invention provides a spice composition with litchi fruit fragrance and peony flower fragrance and application of the spice composition. The perfume composition is prepared from the following components: 0.05 to 0.1 weight percent of berry ethyl ester, 2.0 to 3.0 weight percent of tropical fruit fragrance base, 1.0 to 2.0 weight percent of bitter orange essential oil, 3.0 to 5.0 weight percent of phenethyl alcohol, 0.05 to 0.1 weight percent of hydroxycitronellal, 0.05 to 0.1 weight percent of alpha-ionone, 5.0 to 10.0 weight percent of seven-flower lotus fragrance base, 5.0 to 10.0 weight percent of methyl dihydrojasmonate and the balance of water. And the balance of auxiliary spices and / or dispersants and / or stabilizers. The spice composition disclosed by the invention can present a fresh and sweet litchi fragrance front tone and a clear and full peony fragrance middle tone, and can be used for daily chemical products to meet the technical requirements on high-grade fragrance expression.

The invention relates to the field of daily chemical products, and particularly discloses a juicy peach and oriental cherry fragrance type oral care cleaning agent which is prepared from benzyl alcohol, synthetic menthol, propylene glycol, linalool, methyl dihydrojasmonate, benzyl salicylate, Asian mint oil, anise camphor, Italian lemon oil, gamma-decalactone, rose oxide and raspberry ketone. The invention further provides a preparation method of the oral care cleaning agent. The oral care cleaning agent has the advantages of being unique in fragrance type, mild, clean and lasting in fragrance.

A deodorant aerosol composition comprising an activated aluminium sesquichlorohydrate, a C14-C18 branched-chain hydrocarbon and a fragrance comprising one or more components selected from limonene, dihydromyrcenol, linalool, benzyl acetate, citronellol, linalyl acetate, alpha-methyl ionone, gamma undecalactone, methyl dihydrojasmonate and hexyl cinnamal.

The invention provides a perfume composition based on aldehyde perfume and costustoot synergism and application of the perfume composition. The perfume composition is prepared from the following components: 3.0 to 5.0 weight percent of nonanal, 0.1 to 0.3 weight percent of capraldehyde, 0.3 to 0.5 weight percent of phenylacetaldehyde, 0.5 to 1.0 weight percent of benzaldehyde, 0.1 to 0.3 weight percent of melonal, 1.0 to 2.0 weight percent of peppermint oil, 20 to 30 weight percent of methyl dihydrojasmonate, 30 to 40 weight percent of Opmisinone and the balance of water. And the balance of auxiliary spices and / or dispersants and / or stabilizers. The perfume composition provided by the invention is used in daily chemical products, not only can present the unique olfactory image of'the moment of collision between a sword and a historical reel ', but also breaks through the fragrance framework of the traditional perfume through the ingenious proportion of the aldehyde compound and the wood essential oil, and creates the breath with deep cultural image and characteristic neutral temperament.

The invention relates to the technical field of essence, and particularly discloses daily chemical essence and a preparation method thereof.The daily chemical essence is prepared from, by mass, 35-50 parts of fixative; 45-70 parts of a composite perfume; 5.6-16 parts of compound vegetable oil; the compound spice is a compound of carrageenal, Shumule, methyl dihydrojasmonate and commisinone; the compound vegetable oil is compounded by frankincense oil, cypress oil, lemon oil, guaiacol, patchouli oil, sweet orange oil and vetiver oil. The invention has the advantage of reducing the harm of daily chemical essence to human body.

Disclosed are agricultural compositions comprising a jasmonate, a seaweed and a surfactant. Also disclosed are methods of using the compositions for altering secondary metabolite production in a plant or plant part.