申请人:Firmenich SA
公开号:US04218347A1
公开(公告)日:1980-08-19
Bicyclic aldehyde derivatives of formula ##STR1## containing a single or a double bond in the position indicated by the dotted lines and wherein symbol R.sup.1 represents a hydrogen atom or a methyl radical and R.sup.2 defines a linear or branched alkyl radical containing 1 to 6 carbon atoms. Compounds (I) find specific utility as perfuming and flavoring agents. Process for the preparation of said compounds (I) starting from cyclopentadiene or a methyl substituted cyclopentadiene and an alkyl 4-oxo-butenoate.
式为##STR1##的双环醛衍生物,其中虚线所示位置包含单键或双键,符号R.sup.1表示氢原子或甲基基团,R.sup.2定义为含1至6个碳原子的线性或支链烷基基团。化合物(I)作为香料和调味剂具有特定用途。从环戊二烯或甲基取代的环戊二烯和4-氧代-丁烯酸烷基酯开始制备所述化合物(I)的过程。