Halogenation of arenes with sulfoxide and oxalyl halide
作者:Kaishuo Zhao、Tong Chen、Hao Wang、Yongguo Liu、Sen Liang、Baoguo Sun、Hongyu Tian、Ning Li
DOI:10.1080/17415993.2023.2207701
日期:2023.9.3
The utilization of DMSO or Ph2SO/(COBr)2 or (COCl)2 for the bromination or chlorination of arenes has been explored. Notably, monobromination of activated arenes can be achieved with high regioselectivity using the combination of dimethyl sulfoxide and oxalyl bromide. Bromodimethylsulfonium bromide generated in situ was proposed to be the active species for bromination. In contrast, the practicality