Visible-light initiated direct oxysulfonylation of alkenes with sulfinic acids leading to β-ketosulfones

摘要: Visible light along with 1 mol% eosin Y catalyzed the direct oxysulfonylation of alkenes sulfinic acids via a photoredox process which has been developed at room temperature under transition-metal-free conditions. The present reaction provides highly efficient approach to diverse β-ketosulfones in moderate good yields. It should provide promising synthesis candidate for formation and useful β-ketosulfone derivatives fields synthetic pharmaceutical chemistry.