A highly efficient kinetic resolution of Morita–Baylis–Hillman adducts achieved by N–Ar axially chiral Pd-complexes catalyzed asymmetric allylation
作者:Feijun Wang、Shengke Li、Mingliang Qu、Mei-Xin Zhao、Lian-Jun Liu、Min Shi
DOI:10.1039/c1cc15543a
日期:——
Palladium complexes with an axially chiral NâAr framework have been developed. These complexes showed high stereoselectivities in asymmetric allylic arylation to achieve the kinetic resolution of MoritaâBaylisâHillman adducts, affording up to 99% ee of (E)-allylation products and 92% ee of recovered MoritaâBaylisâHillman adducts.
我们开发了具有轴向手性 NâAr 框架的钯配合物。这些配合物在不对称烯丙基芳基化过程中表现出很高的立体选择性,从而实现了莫里塔-贝利斯-希尔曼加合物的动力学解析,得到的(E)-烯丙基化产物的ee高达99%,回收的莫里塔-贝利斯-希尔曼加合物的ee高达92%。