Control of Vicinal Stereocenters through Nickel-Catalyzed Alkyl-Alkyl Cross-Coupling
作者:Xin Mu、Yu Shibata、Yusuke Makida、Gregory C. Fu
DOI:10.1002/anie.201702402
日期:2017.5.15
compounds. Although metal‐catalyzed cross‐coupling reactions of unactivated alkyl electrophiles are emerging as a powerful tool in organic synthesis, there have been virtually no reports of processes that generate, much less control, vicinal stereocenters. In this investigation, we establish that a chiral nickel catalyst can mediate doubly stereoconvergent alkyl–alkyl cross‐coupling, specifically, reactions
邻位立体中心存在于许多天然和非天然化合物中。尽管未活化的烷基亲电试剂的金属催化交叉偶联反应已成为有机合成中的强大工具,但实际上,尚无任何报道能产生更少的邻位立构中心的过程。在这项研究中,我们确定手性镍催化剂可以介导双立体收敛的烷基-烷基交叉偶联,特别是外消旋吡咯烷衍生的亲核试剂与环状烷基卤化物(作为立体异构体的混合物)的反应,以产生具有良好立体选择性的邻位立体中心。 。