Slow release of fragrant compounds in perfumery using 2-benzoyl benzoates, 2-alkanoyl benzoates or alpha-keto esters
申请人:Firmenich SA
公开号:US06369026B1
公开(公告)日:2002-04-09
The present invention describes a fragrance delivery system which releases fragrant alcohols upon exposure to light. Said system comprises 2-benzoyl benzoates of general formulae
which can comprise various subtituents R1-R5 as defined in the application and a substituted R* which is the organic part of a fragrant alcohol.
In a further embodiment, the present invention describes a fragrance delivery system which releases fragrant aldehydes or ketones and/or fragrant compounds containing an olefin function. This system comprises &agr;-keto esters of formula
in which R′* and R″* have the meaning as defined in the application and which are generally, in case of R′*, an alkyl group carrying an abstractable hydrogen in &ggr;-position relative to the keto function and carrying a moiety from which is derived a fragrant compound containing an olefin function, and, in case of R″*, the organic part of a primary or secondary alcohol from which is derived a fragrant aldehyde or ketone.
SLOW RELEASE OF FRAGRANT COMPOUNDS IN PERFUMERY USING 2-BENZOYL BENZOATES, 2-ALKANOYL BENZOATES OR ALPHA-KETO ESTERS
申请人:FIRMENICH SA
公开号:EP1082287A2
公开(公告)日:2001-03-14
US6133228A
申请人:——
公开号:US6133228A
公开(公告)日:2000-10-17
US6369026B1
申请人:——
公开号:US6369026B1
公开(公告)日:2002-04-09
[EN] SLOW RELEASE OF FRAGRANT COMPOUNDS IN PERFUMERY USING 2-BENZOYL BENZOATES, 2-ALKANOYL BENZOATES OR alpha -KETO ESTERS<br/>[FR] COMPOSES DE PARFUMERIE ODORANTS A LIBERATION LENTE CONTENANT DES BENZOATES DE 2-BENZOYLE, DES BENZOATES DE 2-ALCANOYLE OU DES ALPHA-CETOESTERS
申请人:——
公开号:WO1999060990A2
公开(公告)日:1999-12-02
[EN] The present invention describes a fragrance delivery system which releases fragrant alcohols upon exposure to light. Said system comprises 2-benzoyl benzoates of general formulae (I) or (II) which can comprise various substituents R>1<-R>5< as defined in the application and a substituent R* which is the organic part of a fragrant alcohol R*OH. In a further embodiment, the present invention describes a fragrance delivery system which releases fragrant aldehydes or ketones and/or fragrant compounds containing an olefin function. This system comprises alpha -keto esters of formula (III) in which R'* and R''* have the meaning as defined in the application and which are generally, in case of R'*, an alkyl group carrying an abstractable hydrogen in gamma -position relative to the alpha -keto function and carrying a moiety from which is derived a fragrant compound containing an olefin function, and, in case of R''*, the organic part of a primary or secondary alcohol from R''*OH which is derived a fragrant aldehyde or ketone. [FR] La présente invention concerne un système de libération de parfum qui libère des alcools odorants lorsque ceux-ci sont exposés à la lumière. Ce système comprend des benzoates de 2-benzoyle de la formule générale (I) ou (II) qui peuvent inclure divers substituants R>1<-R>5<, tels que définis dans le mémorandum descriptif, et un substituant R* qui est la composante organique d'un alcool odorant R*OH. Dans une autre forme de réalisation, l'invention concerne un système de libération de parfum qui libère des aldéhydes ou cétones odorants et/ou des composés odorants comprenant une fonction oléfinique. Ce système comprend des alpha-cétoesters de la formule (III) dans laquelle R'* et R''* sont tels que définis dans le mémorandum descriptif. Dans le cas de R'*, les alpha-cétoesters sont un groupe alkyle contenant, d'une part, un hydrogène soustractif à la position gamma relativement à la fonction alpha-cétone et, d'autre part, une fraction de laquelle est extrait un composé odorant comprenant une fonction oléfinique. Dans le cas de R''* les alpha-cétoesters sont la composante organique d'un alcool primaire ou secondaire obtenu de R''*OH duquel est extrait un aldéhyde ou cétone odorant.