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.
本发明描述了一种香气释放系统,该系统在暴露在光线下时释放出芳香性醇。该系统包括通式为2-苯甲酰苯甲酸酯的化合物,其中可以包括各种定义在申请中的取代基R1-R5和一个取代基R*,它是芳香性醇的有机部分。在另一实施例中,本发明描述了一种释放芳香性醛或酮和/或含有烯烃功能的芳香性化合物的香气释放系统。该系统包括通式为α-酮酯的化合物,其中R'*和R"’*的含义如申请中所定义,通常情况下,在R'*的情况下,它是一种烷基基团,在酮功能的&ggr;-位置上带有可提取氢原子,并带有一个由其衍生的含有烯烃功能的芳香化合物的基团,而在R"’*的情况下,它是源自含有烯烃功能的芳香性醛或酮的一级或二级醇的有机部分。