Enantiomerically Enriched α-Borylzinc Reagents by Nickel-Catalyzed Carbozincation of Vinylboronic Esters
作者:Chenlong Zhang、Weipeng Hu、Gabriel J. Lovinger、Jing Jin、Jingjia Chen、James P. Morken
DOI:10.1021/jacs.1c05274
日期:2021.9.8
In this paper is described a synthesis of enantiomerically enriched, configurationally stable organozinc reagents by catalytic enantioselective carbozincation of a vinylboronic ester. This process furnishes enantiomerically enriched α-borylzinc intermediates that are shown to undergo stereospecific reactions, producing enantioenriched secondary boronic ester products. The properties of the intermediate
本文描述了通过乙烯基硼酸酯的催化对映选择性碳氧化合成对映体富集、构型稳定的有机锌试剂。该工艺提供了富含对映体的 α-硼锌中间体,这些中间体经证明会发生立体定向反应,从而产生富含对映体的仲硼酸酯产品。探索了中间体α-硼锌试剂的性质,并通过将其应用于(-)-aphanorphine和(-)-enterolactone的合成证明了产物的合成效用。