β,β-Disubstituted vinyl sulfones were obtained with complete regio- and stereocontrol in a multicomponent reaction involving alkynes, organoboronic acids, and sulfonyl chlorides in the presence of a nickel catalyst. The reaction proceeds via sulfonyl radicals generated in situ under mild reaction conditions.
Keywords: carbosulfonylation; nickel; stereoselectivity; sulfonyl radicals; vinyl radicals.
© 2017 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.