Highly Chemo- and Regioselective Construction of Spirocarbocycles by a Pd(0)-Catalyzed Dearomatization of Phenol-Based Biaryls with 1,3-Dienes
作者:Lei Luo、Huayu Zheng、Jingjing Liu、Hui Wang、Yaoyu Wang、Xinjun Luan
DOI:10.1021/acs.orglett.6b00710
日期:2016.5.6
A novel Pd(0)-catalyzed intermolecular carbocyclization of phenol-derived biaryls with 1,3-dienes has been implemented through a sequence of oxidative addition to the C–I bond, regioselective olefin insertion, and allylative dearomatization. This method provides a broad range of attractive spirocyclic compounds bearing two contiguous tertiary/quaternary carbon centers in good yields with excellent
一种新颖的Pd(0)催化的苯酚衍生联芳基与1,3-二烯的分子间碳环化反应通过一系列氧化加成C–I键,区域选择性烯烃插入和烯丙基脱芳香化反应的方法实现。该方法以良好的收率和优异的化学选择性和区域选择性提供了广泛的具有两个连续的叔/季碳中心的有吸引力的螺环化合物。此外,初步结果表明,使用手性配体对该过程进行不对称控制是可行的。