Photoredox-catalyzed sulfonylation of difluoroenoxysilanes with the insertion of sulfur dioxide
作者:Fu-Sheng He、Yanfang Yao、Wenlin Xie、Jie Wu
DOI:10.1039/d0cc03591b
日期:——
photoredox-catalyzed three-component reaction of aryldiazonium tetrafluoroborates with sodium metabisulfite and 2,2-difluoro enol silyl ethers is described. By using sodium metabisulfite as the source of sulfurdioxide, this method provides an elegant access to α,α-difluoro-β-ketosulfones in moderate to good yields under mild conditions, and features a broad substrate scope and wide functional group tolerance