Stereoselective Preparation of β-Aryl-β-Boronyl Enoates and Their Copper-Catalyzed Enantioselective Conjugate Reduction
作者:Jinyue Ding、Jack Chang Hung Lee、Dennis G. Hall
DOI:10.1021/ol301958x
日期:2012.9.7
A new methodology has been developed for the stereoselective preparation of β-aryl-β-boronyl α,β-unsaturated esters via Heck coupling, and their subsequent copper(I)-catalyzed enantioselective conjugate reduction. Various chiral secondary boronate derivatives can be accessed in excellent yields and good to high levels of enantioselectivity through the efficient copper-catalyzed process using polymethylhydrosiloxane
已经开发了一种新的方法,用于通过Heck偶联立体选择性地制备β-芳基-β-硼酰基α,β-不饱和酯,以及随后的铜(I)催化的对映选择性共轭还原。通过使用聚甲基氢硅氧烷(PMHS)作为氢化物源的高效铜催化方法,可以以高收率和良好至高水平的对映选择性获得各种手性仲硼酸酯衍生物。