Iridium‐Catalyzed Enantioselective Hydrogenation of Indole and Benzofuran Derivatives
作者:Yao Ge、Zheng Wang、Zhaobin Han、Kuiling Ding
DOI:10.1002/chem.202002532
日期:2020.12
Enantioselective hydrogenation of a broad spectrum of N‐, O‐, and S‐containing aromatic benzoheterocycles or nonaromatic unsaturated heterocycles has been realized by using an Ir/SpinPHOX (SpinPHOX=spiro[4,4]‐1,6‐nonadiene‐based phosphine‐oxazoline) complex as the catalyst, affording an array of the corresponding chiral benzoheterocycles (30 examples) with excellent enantioselectivities (>99 % ee in
通过使用Ir / SpinPHOX(SpinPHOX = spiro [4,4] -1,6-壬二烯基膦,已经实现了对N,O和S的各种芳族苯并杂环或非芳族不饱和杂环的对映选择性氢化) -恶唑啉)络合物作为催化剂,可提供一系列相应的手性苯并杂环化合物(30个实例),具有出色的对映选择性(大多数情况下> 99% ee),周转数高达500。