Kinetic Resolution and Dynamic Kinetic Resolution of Chromene by Rhodium‐Catalyzed Asymmetric Hydroarylation
作者:Qingjing Yang、Yanbo Wang、Shihui Luo、Jun (Joelle) Wang
DOI:10.1002/anie.201900721
日期:2019.4.8
A highly efficient kinetic resolution and dynamic kinetic resolution of chromene is reported for the first time and they procced by a rhodium‐catalyzed asymmetric hydroarylation pathway. This new approach offers versatile access to various chiral 2,3‐diaryl‐chromanes containing vicinal stereogenic centers, as well as the recovered chiral flavenes, in high yields with excellent ee values (s factor up
首次报道了色烯的高效动力学拆分和动态动力学拆分,它们是通过铑催化的不对称氢芳基化途径进行的。这种新方法可以以高收率和优异的ee 值(高达532的s因子)提供多种途径获得包含邻位立体异构中心的各种手性2,3-二芳基-苯并二氢吡喃,以及回收的手性黄酮。特别值得注意的是,该策略可以进一步扩展到建立苯二甲醛缩醛动力学拆分的动态版本,并允许完全接触手性异黄酮和α-芳基氢香豆素。