Pd-Catalyzed Asymmetric Allylic Alkylations of 3-Substituted Indoles Using Chiral P/Olefin Ligands
摘要:
A palladium-catalyzed asymmetric allylic alkylation of 3-substituted indoles using P/olefin ligands was successfully achieved to afford a variety of indolenines containing a quaternary carbon stereocenter in high yields with up to 87% ee. Significantly, this reaction provides a concise access to a stereoisomer of the natural product Angelicastigmin.
Asymmetric synthesis of axially chiral anilides by Pd-catalyzed allylic substitutions with P/olefin ligands
作者:Yilin Liu、Xiangqing Feng、Haifeng Du
DOI:10.1039/c4ob01087f
日期:——
synthesis of axiallychiral anilides is therefore of great interest in synthetic and pharmaceutical chemistry. In this paper, a palladium-catalyzed asymmetric allylic substitution of ortho-substituted anilides using phosphorus amidite–olefin ligands was successfully achieved to afford a variety of axiallychiral anilides in high yields with up to 84% ee. The absolute configurations of chiral anilides were