Generation and Application of (Diborylmethyl)zinc(II) Species: Access to Enantioenriched <i>gem</i>
-Diborylalkanes by an Asymmetric Allylic Substitution
作者:Yeosan Lee、Jinyoung Park、Seung Hwan Cho
DOI:10.1002/anie.201805476
日期:2018.9.24
We report the successful generation of (diborylmethyl)zinc(II) species by transmetallation beteween isolable (diborylmethyl)lithium and zinc(II) halide (X=Br, Cl) and their application in the synthesis of enantioenriched gem‐diborylalkanes bearing a stereogenic center at the β‐position of the diboryl groups by an asymmetric allylic substitution reaction. The reaction has a broad substrate scope, and
我们报告了通过可分离的(diborylmethyl)锂和卤化锌(II)(X = Br,Cl)之间的金属转移成功生成了(diborylmethyl)zinc(II)物种,并将其用于合成具有立体异构中心的对映体富集的宝石-diborylalkanes通过不对称的烯丙基取代反应在二硼烷基的β-位上 该反应具有广泛的底物范围,并且可以以良好的收率和优异的对映选择性获得各种对映体富集的宝石-二硼烷基烷烃。进一步精制对映体富集的宝石-二硼烷基烷烃可提供各种有价值的手性构建基块。