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Solvent-Controlled Cascade Reaction of SeO2, Sulfonyl Hydrazides and Alkynes for Chemoselective Access to Symmetric
Yongsheng Fang1, Yuting Wu1, Honghong Guo1
1College of Chemistry and Chemical Engineering, Taiyuan University of Technology, 79 West Yingze Street, Taiyuan 030024, People's Republic of China.
Abstract:
A solvent-controlled unprecedented tandem reaction of readily accessible SeO2, a wide variety of sulfonyl hydrazides, and alkynes has been established for the chemodivergent construction of structurally complex 1,2-bis((E)-1-aryl-2-arylsulfonylvinyl)diselanes and bis((E)-1-aryl-2-(arylsulfonyl)vinyl)selanes via a catalyst-free one-pot three-component approach, respectively. The adjustable and controlled synthetic strategy shows good yields and chemoselectivities for most substrates under mild and simple conditions.
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