Visible-Light-Promoted Metal-Free 3-Arylation of 2-Aryl-2H-indazoles with Triarylsulfonium Salts
作者:Kai Sun、Bing Yu、Anzai Shi、Panjie Xiang、Yanxuan Wu、Chang Ge、Yan Liu
DOI:10.1055/a-1938-9550
日期:2023.3
An efficient approach for the photosynthesis of various arylated 2-aryl-2H-indazoles (38 examples) in moderate to good yields (up to 87% yield) under mild conditions was developed by employing 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyanobenzene (4CzIPN) as an inexpensive photocatalyst. This protocol features wide substrate scope, good functional group tolerance, and operational simplicity. In addition
通过采用1,2,3,5-四 ( carbazol-9-yl)-4,6-dicyanobenzo (4CzIPN) 作为一种廉价的光催化剂。该协议具有广泛的底物范围、良好的功能组耐受性和操作简单性。此外,该策略成功应用于药物分子的后期修饰,首次实现了将复杂药物有意义地引入2H-吲唑骨架。