copper-catalyzed approach to benzo[b]thiophene and benzothiazole derivatives using thiocarboxylic acids as a sulfur source has been developed. In the presence of CuI and 1,10-phen, and n-Pr3N as the base, (2-iodobenzyl)triphenylphosphonium bromide and (2-iodophenylimino)triphenylphosphorane reacted smoothly with thiocarboxylic acids to give benzo[b]thiophene and benzothiazole derivatives in good yields via
已经开发出一种有效的
铜催化方法,以
硫代
羧酸作为
硫源,用于苯并[ b ]
噻吩和
苯并噻唑衍
生物。在CuI和1,10-phen和n -Pr 3 N为碱的情况下,(2-
碘苄基)三苯基
溴化and和(2-
碘苯基亚
氨基)三苯基phosph与
硫代
羧酸平稳反应,生成苯并[ b ]
噻吩和
苯并噻唑通过顺序的Ullmann型C–S键耦合和Wittig缩合,可以得到高收率的衍
生物。