Isoprenoid chain elongations by Claisen rearrangements using acetals as precursors of vinyl ethers
作者:Peter Baeckström、Lanna Li
DOI:10.1016/s0040-4020(01)86579-0
日期:1991.8
Claisen rearrangements of allyl vinyl ethers, formed in situ by the acid catalyzed reaction of dimethyl acetals of acetaldehyde, acetone and isopropeny] methyl ketone with different types of allylic alcohols, have been compared. The primary, secondary and tertiary allylic alcohols used in the investigation were selected to serve as models for isoprenoid synthesis. The basis for two feasible methods
比较了通过乙醛,丙酮和异丙基甲基酮的二甲基缩醛与不同类型的烯丙醇的酸催化反应原位形成的烯丙基乙烯基醚的克莱森重排。选择用于研究的伯,仲和叔烯丙醇作为类异戊二烯合成的模型。已经研究了可以迭代创建类异戊二烯链的两种可行方法的基础。