作者:Can Li、Zheng Yang、Lei Wang、Yinlong Guo、Zheng Huang、Shengming Ma
DOI:10.1002/anie.201915716
日期:2020.4.6
pincer-ligand-based cobalt-complex-catalyzed allene hydroboration affording Z-allylic boronates is described. The reaction demonstrates an excellent regio- as well as Z-stereoselectivity and a wide substrate scope that tolerates many functional groups. Based on solvent-assisted electrospray ionization mass spectrometry (SAESI-MS) studies, a rationale for the cobalt-catalyzed hydroboration involving the highly selective
描述了一种有效的基于钳子配体的钴络合物催化的丙二烯硼氢化,得到Z-烯丙基硼酸酯。该反应显示出优异的区域选择性和Z-立体选择性,并具有宽泛的底物范围,可以耐受许多官能团。基于溶剂辅助电喷雾电离质谱(SAESI-MS)的研究,提出了钴催化硼氢化反应的基本原理,其中涉及将丙二烯高度选择性地插入Co-H键中以形成Z-烯丙基钴中间体。