Metal-Free Electrophilic Alkynylation of Sulfenate Anions with Ethynylbenziodoxolone Reagents
作者:Stephanie G. E. Amos、Stefano Nicolai、Alec Gagnebin、Franck Le Vaillant、Jerome Waser
DOI:10.1021/acs.joc.9b00050
日期:2019.3.15
Alkynyl sulfoxides are important buildingblocks with a unique reactivity in organic chemistry, but only a few reliable methods have been reported to synthesize them. A novel route to access alkynyl sulfoxides is reported herein by using ethynyl benziodoxolone (EBX) reagents to trap sulfenate anions generated in situ, via a retro-Michael reaction. The reaction takes place under metal-free and mild