Dynamic Kinetic Resolution of Phthalides via Asymmetric Transfer Hydrogenation: A Strategy Constructs 1,3-Distereocentered 3-(2-Hydroxy-2-arylethyl)isobenzofuran-1(3<i>H</i>)-one
作者:Tanyu Cheng、Qunqun Ye、Qiankun Zhao、Guohua Liu
DOI:10.1021/acs.orglett.5b02394
日期:2015.10.16
phthalides through asymmetric transfer hydrogenation for the construction of 3-(2-hydroxy-2-arylethyl)isobenzofuran-1(3H)-one with 1,3-distereocenters has been developed. This procedure is carried out under a mild condition at 40 °C catalyzed with RuCl[(S,S)-TsDPEN](mesitylene) using HCOOH/Et3N (5:2) as a hydrogen source. A variety of phthalides are smoothly transferred to provide optically pure phthalides
通过不对称转移加氢反应制备动力学动力学拆分物,用于构建具有1,3-二中心的3-(2-羟基-2-芳基乙基)异苯并呋喃-1(3 H)-。该过程在温和的条件下,在40°C,RuCl [(S,S)-TsDPEN](均三甲苯)催化下,使用HCOOH / Et 3 N(5:2)作为氢源进行的。可以平稳地转移各种邻苯二甲酸酯,以提供具有高收率,出色的对映选择性和可接受的非对映异构体比率的光学纯邻苯二甲酰亚胺。