Streamlined Construction of Silicon-Stereogenic Silanes by Tandem Enantioselective C–H Silylation/Alkene Hydrosilylation
作者:Delong Mu、Wei Yuan、Shuyou Chen、Na Wang、Bo Yang、Lijun You、Bing Zu、Peiyuan Yu、Chuan He
DOI:10.1021/jacs.0c04863
日期:2020.8.5
A rhodium-catalyzed tandem enantioselective C-H silylation/alkene hydrosilylation of dihydrosilanes, which enables the streamlined construction of a wide range of silicon-stereogenic silanes, is successfully developed. This process involves a SiH2-steered highly enantioselective C-H silylation to furnish the corresponding desymmetric monohydrosilanes, which are subsequently trapped with alkenes in
成功开发了铑催化的二氢硅烷的串联对映选择性 CH 硅烷化/烯烃氢化硅烷化,它能够简化构建各种硅立体硅烷。该过程涉及 SiH2 控制的高度对映选择性 CH 甲硅烷基化,以提供相应的不对称单氢硅烷,随后以立体有择的方式用烯烃捕获以构建功能多样的不对称四取代硅烷。这种通用策略将现成的二氢硅烷和烯烃结合在一起,以单一步骤构建各种对映体富集的硅立体硅烷,包括 9-硅芴、Si 桥连梯形化合物和苯并硅基茂金属,并具有良好的产率和对映选择性。