Compositions comprising photo-labile perfume delivery systems

C - Chemistry – Metallurgy – 07 – C

Patent

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Details

C07C 69/732 (2006.01) A61K 8/37 (2006.01) A61Q 5/02 (2006.01) C11D 3/50 (2006.01)

Patent

CA 2456620

The present invention relates to photo-labile pro-fragrances, as well as a fragrance raw material delivery system comprising: i) from about 0.001% to about 100% by weight, of a photo-labile pro-fragrance compound having the formula (I) wherein OR is a unit derived from a fragrance raw material alcohol, HOR; R1 is one or more electron donating groups; each R2 is independently hydrogen, C1-C12 alkyl, and mixtures thereof; X is selected from the group consisting of -OH, -NH2, -NHR3, and mixtures thereof; R3 is hydrogen, C1-C12 linear or branched alkyl, C6-C10 aryl, and mixtures thereof; and ii) optionally from about 0.001% to about 50% by weight, of one or more fragrance raw materials.

L'invention concerne des précurseurs de fragrances photochimiquement labiles, ainsi qu'un système de distribution de matière première de fragrance comprenant: i) de 0,001 % environ à 100 % environ en poids, d'un composé précurseur de fragrance photochimiquement labile de formule (I) dans laquelle OR représente une unité dérivée d'un alcool matière première de fragrance, HOR, R?1¿ représente un ou plusieurs groupes donneurs d'électrons, chaque R?2¿ représente, de manière indépendante, un atome d'hydrogène, un groupe C¿1?-C¿12? alkyle, et leurs mélanges, X représente un groupe sélectionné parmi le groupe comprenant un groupe -OH, -NH¿2?, -NHR?3¿, et leurs mélanges, R?3¿ représente un atome d'hydrogène, un groupe C¿1?-C¿12?alkyle linéaire ou ramifié, C¿6?-C¿10? aryle, et leurs mélanges, et ii) éventuellement entre 0,001 % environ et 50 % environ en poids d'une ou de plusieurs matières premières de fragrances.

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