Radical Borylative Cyclization of Isocyanoarenes with N-Heterocyclic Carbene Borane: Synthesis of Borylated Aza-arenes
作者:Yao Liu、Ji-Lin Li、Xu-Ge Liu、Jia-Qiang Wu、Zhi-Shu Huang、Qingjiang Li、Honggen Wang
DOI:10.1021/acs.orglett.1c00309
日期:2021.3.5
Borylated aza-arenes are of great importance in the area of organic synthesis. A radical borylative cyclization of isocyanoarenes with N-heterocycliccarbeneborane (NHC-BH3) under metal-free conditions was developed. The reaction allows the efficient assembly of several types of borylated aza-arenes (phenanthridines, benzothiazoles, etc.), which are difficult to access using alternative methods. Mild