New sigmatropic sequences based on the [2,3]-wittig rearrangement of the bis-allylic ether system
作者:Kōichi Mikami、Naoyuki Kishi、Takeshi Nakai、Yoshiji Fujita
DOI:10.1016/s0040-4020(01)90580-0
日期:1986.1
Four new sigmatropic sequences triggered by the regiocontrolled [2,3]-Wittig rearrangement of unsymmetrical bis-allylic ethers (1) to the l,5-dien-3-ols (2) arc described, which provide unique, regiocontrolled methods for the synthesis of a wide variety of unsaturated carbonyl compounds possessing interesting molecular frameworks. The newly developed sequences include the [2,3]-Wittig-Claisen, the
描述了由不对称双烯丙基醚(1)到1,5-二烯-3-醇(2)的区域控制[2,3] -Wittig重排触发的四个新的sigmatropic序列,它们提供了独特的区域控制方法具有令人感兴趣的分子框架的各种不饱和羰基化合物的合成。新开发的序列包括[2,3] -Wittig-Claisen,串联[2,3] -Wittig-oxy-Cope,串联oxy-Cope-Claisen和串联oxy-Cope-Cope序列。