Direct difunctionalization of alkenes with sulfinic acids and NBS leading to beta-bromo sulfones

作者:Wei, Wei; Liu, Xiaoxia; Yang, Daoshan; Dong, Ruimei; Cui, Ying; Yuan, Fei; Wang, Hua*
来源:Tetrahedron Letters, 2015, 56(14): 1808-1811.
DOI:10.1016/j.tetlet.2015.02.043

摘要

A new and metal-free method has been developed for the synthesis of beta-bromo sulfones through the direct difunctionalization of alkenes with sulfinic acids and NBS. This protocol provides a simple, convenient and efficient approach to various beta-bromo sulfones in moderate to good yields with excellent selectivity, and especially does not require any catalyst or additive.