Enantioselective and Diastereoselective Construction of Chiral Amino Alcohols by Iridium–f-Amphox-Catalyzed Asymmetric Hydrogenation via Dynamic Kinetic Resolution
作者:Weilong Wu、Cai You、Congcong Yin、Yuanhua Liu、Xiu-Qin Dong、Xumu Zhang
DOI:10.1021/acs.orglett.7b00844
日期:2017.5.19
The iridium–f-amphox-catalyzed asymmetric hydrogenation of racemic α-amino β-unfunctionalized ketones proceeds via a DKR (dynamic kinetic resolution) process for the construction of various chiral N,N-disubstituted α-amino β-unfunctionalized alcohols in quantitative yields with excellent enantioselectivities and diastereoselectivities (all products >99% ee and >99:1 dr, TON up to 100 000). Importantly
外消旋α-氨基β-非官能化酮的铱-f-amphox催化的不对称氢化通过DKR(动态动力学拆分)过程进行,以定量产率构建各种手性N,N-二取代的α-氨基β-非官能化醇具有出色的对映选择性和非对映选择性(所有产品> 99%ee和> 99:1 dr,TON高达100000)。重要的是,这种采用DKR方法的催化不对称氢化为制备临床前抗肿瘤剂(S,S)-R116010的关键手性中间体提供了高效且强大的合成策略。