Radical Hydroboration and Hydrosilylation of <i>gem</i>-Difluoroalkenes: Synthesis of α-Difluorinated Alkylborons and Alkylsilanes
作者:Xiaozu Liu、E Emily Lin、Guojun Chen、Ji-Lin Li、Peijun Liu、Honggen Wang
DOI:10.1021/acs.orglett.9b03218
日期:2019.10.18
This protocol features good functional group tolerance, operational simplicity, high atom economy, and easy scale-up, enabling efficient assembly of a wide range of α-difluorinated alkylborons and alkylsilanes in moderate to excellent yields. The synthetic utility of these products is demonstrated by further transformation of the C–B bond and C–Si bond into valuable CF2-containing molecules.
描述了使用ABIN作为自由基引发剂对宝石-二氟烯烃进行自由基硼氢化和氢化硅烷化的第一个实例。该协议具有良好的官能团耐受性,操作简便性,高原子经济性和易于放大的特点,从而能够以中等到极好的收率高效组装各种α-二氟代烷基硼和烷基硅烷。通过将C–B键和C–Si键进一步转化为有价值的含CF 2分子,证明了这些产品的合成效用。