申请人:FIRMENICH SA
公开号:US20010014661A1
公开(公告)日:2001-08-16
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
1
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.
本发明描述了一种香气释放系统,该系统在接触光线时释放出含有醛或酮的芳香基和/或含有烯烃功能的芳香化合物。该系统包括式1中的α-酮酯,其中R'*和R"'*的含义如申请书中所定义,并且通常情况下,在R'*的情况下,它是一种烷基,带有可提取氢的γ-位置相对于α-酮功能,并带有一个基团,从中得到含有烯烃功能的芳香化合物,在R"’*的情况下,它是来自R"OH的一级或二级醇的有机部分,从中得到含有香醛或酮的芳香基。