摘要:
Process for esterification of farnesol in an initial mixture comprising alpha-bisabolol, farnesol and optionally other components, with the following steps: 1. Preparation or production of the initial mixture, 2. Adding (i) a transesterification catalyst and (ii) one or more compounds of formula (B) R2YnCO2R1 (B) in which the following applies: R1 stands for an alkyl residue with 1 to 12 C atoms; R2 stands for hydrogen, an alkyl residue with 1 to 20 C atoms, a cycloalkyl residue with 5 to 20 C atoms, an aryl residue with 6 to 20 C atoms or a heteroaryl residue with 5 to 20 C atoms; and Y stands for CH2, CH(Me), CH(Et), C(Me)2, CH2—CH(Me), CH(Me)-CH2 or CH2—CH(Me)-CH2 and n stands for a whole number from 0 to 6; or R2 stands for a group CO2R3, R3 standing for an alkyl residue with 1 to 12 C atoms; and Y stands for CH2, CH(Me), CH(Et), C(Me)2, CH2—CH(Me), CH(Me)-CH2 or CH2—CH(Me)-CH2 and n stands for a whole number from 0 to 8, or Y stands for an optionally substituted phenyl or naphthyl ring with a total of at most four substituents on the ring, n=1 applying.
摘要:
Mint lactone can be prepared by hydrogenating hydroxymenthofurolactone to give the intermediate dihydrohydroxymenthofurolactone with the subsequent elimination of water.
摘要:
Process for esterification of farnesol in an initial mixture comprising alpha-bisabolol, farnesol and optionally other components, with the following steps: 1. Preparation or production of the initial mixture, 2. Adding (i) a transesterification catalyst and (ii) one or more compounds of formula (B) R2YnCO2R1 (B) in which the following applies: R1 stands for an alkyl residue with 1 to 12 C atoms; R2 stands for hydrogen, an alkyl residue with 1 to 20 C atoms, a cycloalkyl residue with 5 to 20 C atoms, an aryl residue with 6 to 20 C atoms or a heteroaryl residue with 5 to 20 C atoms; and Y stands for CH2, CH(Me), CH(Et), C(Me)2, CH2—CH(Me), CH(Me)-CH2 or CH2—CH(Me)-CH2 and n stands for a whole number from 0 to 6; or R2 stands for a group CO2R3, R3 standing for an alkyl residue with 1 to 12 C atoms; and Y stands for CH2, CH(Me), CH(Et), C(Me)2, CH2—CH(Me), CH(Me)-CH2 or CH2—CH(Me)-CH2 and n stands for a whole number from 0 to 8, or Y stands for an optionally substituted phenyl or naphthyl ring with a total of at most four substituents on the ring, n=1 applying.
摘要:
This invention relates to cosmetic and pharmaceutical preparations comprising (i) a diastereomer or a mixture of two or more diastereomers of the compound of formula (I) or (ii) a salt of a diastereomer or of a mixture of two or more diastereomers of the compound of formula (I) or (iii) a mixture of two or more salts of a diastereomer or of a mixture of two or more diastereomers of the compound of formula (I), a diastereomer, salt or a mixture as defined above as a drug for topical application and/or for the treatment of lipoatrophy; the non-therapeutic use of a diastereomer, salt or a mixture as defined above for the prevention, treatment or reduction of skin aging, especially skin wrinkles; the use of a diastereomer, salt or a mixture as defined above for the production of an orally administered non-pharmaceutical preparation.
摘要:
The invention relates to the use of neopentyl glycol diisononanoate (CAS No. 27841-07-2) as a fixative for perfume oils or as a fixative for (top note) fragrance substances. The invention also relates to certain compositions containing neopentyl glycol diisononanoate and one or more top note fragrance substances. Furthermore, the invention relates to a method for producing such compositions and (cosmetic) products containing a composition according to the invention. Additionally the invention relates to a method for imparting, intensifying or modifying an odor on the (human) skin. A particular aspect of the present invention relates to the improved adherence of volatile fragrance substances to (human) skin and/or (human) hair. Apart from this the invention relates to a combination (kit) comprising neopentyl glycol diisononanoate and one or more top note fragrance substances.
摘要:
The use of a compound of the formula wherein R1-R3 independently of one another are hydrogen, C1-C8-alkyl or C1-C8-alkoxy, R4 is COR, CO2R, CONR2, where R is C1-C8-alkyl or C3-C8-cycloalkyl R5 is H or C1-C8-alkyl, R6 is aryl, aryl substituted by up to three C1-C8-alkyl- or C1-C8-alkoxy, or C3-C8-cycloalkyl as UV filters in cosmetic formulations, in particular in combination with UV filters from the group consisting of methoxycinnamate derivatives and/or dibenzoylmethane derivatives, with the proviso that R5 is H if R4 is COR, is described.
摘要:
The invention relates to a novel process for the preparation of hydroxyalkyl- and acyloxyalkyl-substituted cycloketones by free-radical addition of hydroxyalkenes and acyloxyalkenes respectively to cyclic ketones.
摘要:
Compounds of the formula I according to claim 1 are excellently suitable as UV absorbers for use in cosmetic products, in particular sunscreen compositions, daytime care products and hair care products. They are furthermore suitable for protection of products.
摘要:
A method is described for producing a compound having the formula (I) or an admixture comprising a compound having the formula (I), having the following steps: dissolving an indanone having the formula (II) in a solvent or in an admixture which contains a solvent, the solvent being selected from the group of solvents which form an azeotrope with water, converting the indanone having the formula (II) with an aromatic aldehyde having the formula (III) in the presence of at least one organic base, according to the drawing: where R1 and R2 independently of each other signify hydrogen or a branched or unbranched alkyl group having from 1 to 12 carbon atoms and where R3, R4, R5, R6, R7, R8, R9, R10 and R11 independently of each other signify hydrogen, hydroxy or a branched or unbranched alkyl or alkoxy group having from 1 to 12 carbon atoms and removing water formed from the reaction admixture during the conversion. An admixture comprising a compound of the formula (I) and other components is further described.