Cobalt‐Catalyzed Asymmetric Sequential Hydroboration/Isomerization/Hydroboration of 2‐Aryl Vinylcyclopropanes
作者:Chenhui Chen、Hongliang Wang、Tongtong Li、Dongpo Lu、Jiajing Li、Xie Zhang、Xin Hong、Zhan Lu
DOI:10.1002/anie.202205619
日期:2022.7.25
Chiral 1,5-bis(boronates) were synthesized via an enantioselective cobalt-catalyzed sequential hydroboration/isomerization/hydroboration of vinylcyclopropanes through a trisubstituted alkene intermediate. These chiral 1,5-bis(boronates) were further converted into chiral 1,2,5-triaryl alkanes by an iterative Suzuki–Miyaura cross-coupling reaction with aryl halides.
通过对映选择性钴催化的乙烯基环丙烷通过三取代烯烃中间体的顺序硼氢化/异构化/硼氢化合成手性 1,5-双(硼酸酯)。这些手性 1,5-双(硼酸盐)通过与芳基卤化物的迭代 Suzuki-Miyaura 交叉偶联反应进一步转化为手性 1,2,5-三芳基烷烃。