申请人:FIRMENICH SA
公开号:US11319272B2
公开(公告)日:2022-05-03
The alpha alkylation of an aldehyde with a polycyclic olefin followed by a ring opening step is presented in order to provide a compound of formula (I) in the form of any one of its stereoisomers or a mixture thereof and where in R represents a hydrogen atom or C1-8 linear alkyl group; R1, R2, R3, and R4 represent, when taken separately, independently of each other, a hydrogen atom or a C1-2 linear alkyl group or a C3-4 linear or branched alkyl group; or R2 and R3, when taken together, represent a C4-10 linear, branched or cyclic alkanediyl group and n is 1 or 2 is presented.
通过使用聚环烯烃对一种醛进行α-烷基化反应,随后进行开环步骤,以提供具有以下结构式(I)的化合物,无论是其任何一种立体异构体还是这些异构体的混合物,其中:R代表一个氢原子或一个C1-8直链烷基;R1、R2、R3和R4各自独立地代表一个氢原子、一个C1-2直链烷基或一个C3-4直链或支链烷基;或者当R2和R3一起时,代表一个C4-10直链、支链或环状亚烷基;n为1或2。