An efficient synthesis of sulfonated quinoline diones by copper catalyzed sulfonylation of activated alkenes with sulfonylhydrazides
作者:Shucheng Wang、Xuhu Huang、Qi Wang、Zemei Ge、Xin Wang、Runtao Li
DOI:10.1039/c5ra27878c
日期:——
A novel and highly efficient cascadesynthesis of sulfonated quinoline dione derivatives from N-(2-cyanoaryl) methylacrylamides and sulfonylhydrazides in good yields is described. The reaction proceeds through radicaladdition, cyclization, and imine hydrolysis, in which one new C–C bond and one CO bond were formed.
Gold-Catalyzed Dehydrazinative C(sp)-S Coupling Reactions of Arylsulfonyl Hydrazides with Ethynylbenziodoxolones for Accessing Alkynyl Sulfones
作者:Popat S. Shinde、Nitin T. Patil
DOI:10.1002/ejoc.201700524
日期:2017.6.30
A gold(III)-catalyzed dehydrazinative coupling reaction between TIPS-EBX and arylsulfonylhydrazides has been realized for the synthesis of arylalkynyl sulfones. The scope and versatility of the reaction has been demonstrated by efficient synthesis of 23 derivatives with diverse structural features.