Photoinduced Transition‐Metal‐Free Chemodivergent Phosphorylation‐Peroxidation and Oxyphosphorylation of Alkenes

Abstract

AbstractA visible‐light‐promoted chemodivergent phosphorylation‐peroxidation and oxyphosphorylation of alkenes with phosphine oxides and HOOtBu was realized under transition‐metal‐free conditions. Using the commercially available Eosin Y as a SET‐photocatalyst, the β‐peroxy‐phosphine oxides were selectively obtained with a catalytic amount of base, while the addition of acid led to the exclusive formation of β‐keto‐phosphine oxides control experiments showed that Eosin Y could also act as a HAT‐catalyst to induce the O−O bond cleavage of peroxides under acidic conditions.