Metal-Free Chemoselective Reaction of Sulfoxonium Ylides and Thiosulfonates: Diverse Synthesis of 1,4-Diketones, Aryl Sulfursulfoxonium Ylides, and β-Keto Thiosulfones Derivatives
作者:Fei Wang、Bo-Xi Liu、Weidong Rao、Shun-Yi Wang
DOI:10.1021/acs.orglett.0c02370
日期:2020.8.21
A diverse chemoselective insertion reaction of sulfoxonium ylides and thiosulfonates under transition-metal-free conditions is developed, which successfully affords 1,4-diketone compounds, arylthiosulfoxide-ylides, and β-keto thiosulfones, respectively. The nucleophilic addition of two molecular sulfoxonium ylides to construct sulfone-substituted 1,4-dione compounds is the highlight of this work.
Synthesis of selenoether and thioether functionalized bicyclo[1.1.1]pentanes
作者:Zhen Wu、Yaohui Xu、Xinxin Wu、Chen Zhu
DOI:10.1016/j.tet.2020.131692
日期:2020.12
Bicyclo[1.1.1]pentane is widely recognized as the bioisostere for aryl, tert-butyl, and internal alkynes. Herein we report an efficient and practical method for the preparation of selenoether and thioether functionalized bicyclo[1.1.1]pentanes from selenosulfonates/thiosulfonates and propellane. A variety of valuable bicyclo[1.1.1]pentanes bearing both selenoether/thioether and sulfone are obtained