Photo-Triggered, Copper(II) Chloride-Catalyzed Radical Hydroalkylation and Hydrosilylation of Vinylboronic Esters To Access Alkylboronic Esters
作者:Wei Zhou、Zhi-Wen Luo、Hua Xiao、Jun Yi、Jian-Jun Dai
DOI:10.1021/acs.joc.3c01705
日期:2023.10.20
Herein, we present a phototriggered, CuCl2-catalyzed radical hydroalkylation and hydrosilylation of vinylboronic esters to alkylboronic esters. This approach exhibits mild reaction conditions, utilization of easily accessible reagents, and scalability up to a gram scale. Further synthetic transformations of the hydrosilylation products and mechanistic studies are also demonstrated.
烷基硼酸及其衍生物构成有机合成中的重要组成部分,并且是药物化学中确定的重要基序。在此,我们提出了一种光触发、CuCl 2催化的自由基加氢烷基化和乙烯基硼酸酯氢化硅烷化为烷基硼酸酯的方法。该方法表现出温和的反应条件、使用易于获得的试剂以及可扩展至克级。还展示了氢化硅烷化产物的进一步合成转化和机理研究。