Dioxygen‐Triggered β‐Hydroxysulfonylation of Terminal Olefins Controlled by DABCO

Abstract A dioxygen‐triggered selectively difunctionalization of olefins to achieve β‐hydroxysulfones has been developed. Particularly, the mechanism of this reaction can be controlled by DABCO, which act as a single electron transfer reagent, to selectively obtain ketosulfone or hydroxysulfone. The reaction was conducted in a clean, safe, mild, and catalyst‐free conditions. Moreover, as a proof‐of‐concept, two bioactive molecules were synthesized easily using this method.