Palladium-catalyzed highly selective intramolecular bromoamination of alkenes: Efficient synthesis of substituted pyrrolidines
作者:Jingfang Zhang、Xie Wang、Yulong Liu、Xiaoyun Wang、Wei He
DOI:10.1002/aoc.3631
日期:2017.6
A new method has been developed for the preparation of substituted pyrrolidines by the palladium‐catalyzed intramolecular bromoamination of substituted aminoalkenes. The catalytic system and reaction conditions used for this transformation have been fully optimized. Notably, this reaction exhibits excellent selectivity, affording the pyrrolidine products as single 5‐exo‐bromoalkylpyrrolidines in excellent
已开发出一种新方法,可通过钯催化的取代氨基烯烃的分子内溴化反应来制备取代的吡咯烷。用于此转化的催化体系和反应条件已得到充分优化。值得注意的是,该反应具有出色的选择性,并以极高的收率得到了吡咯烷产品,为单5-外溴代烷基吡咯烷。此外,该反应在室温和温和条件下发生,在1小时内完成。