申请人:Firmenich SA
公开号:US06218355B1
公开(公告)日:2001-04-17
The present invention describes a fragrance delivery system which releases fragrant aldehydes or ketones and/or fragrant compounds containing an olefin function upon exposure to light. 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 &agr;-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.
该发明描述了一种香气释放系统,该系统在受光照射时释放香醛或酮香味化合物和/或含有烯烃功能的香味化合物。该系统包括具有以下结构的α-酮酯:其中R′*和R″*的含义如申请中所定义,并且通常情况下,对于R′*,是一种携带可被提取氢的烷基基团,在α-酮功能相对位置上携带一个基团,该基团来源于含有烯烃功能的香味化合物,并且对于R″*,是从R″*OH中导出香醛或酮的初级或次级醇的有机部分。