Rh(II)-Catalyzed [2,3]-Sigmatropic Rearrangement of Sulfur Ylides Derived from Cyclopropenes and Sulfides
作者:Hang Zhang、Bo Wang、Heng Yi、Yan Zhang、Jianbo Wang
DOI:10.1021/acs.orglett.5b01542
日期:2015.7.2
Rh2(OAc)4-catalyzed [2,3]-sigmatropic rearrangement of sulfur ylides is reported. A series of cyclopropenes were successfully employed for [2,3]-sigmatropic rearrangement by a reaction with either allylic or propargylic sulfides. Under the optimized conditions, the reaction afforded the products in moderate to excellent yields. In these transformations, the vinyl metal carbenes generated in situ from the cyclopropenes
报道了一种新型的Rh 2(OAc)4催化的硫离子的[2,3]-σ重排。通过与烯丙基或炔丙基硫化物的反应,成功地将一系列环丙烯用于[2,3]-σ重排。在最优化的条件下,反应以中等至极好的收率提供了产物。在这些转化中,从环丙烯原位生成的乙烯基金属碳烯被硫化物有效地捕获,导致在[2,3]σ重排时形成相应的产物。