Electrochemical Radical Allylation Reaction of Arylphosphine Oxides

Abstract Functionalized organophosphorus compounds are key structural motifs in many natural products and pharmaceutical chemicals. Herein, we describe the electrochemical radical allylation reaction for the direct and efficient construction of C(sp 3 )─P bonds. A wide range of arylphosphine oxides and allylsilanes were well tolerated, providing valuable organophosphorus compounds with generally good yields. Mechanistic studies indicate that a phosphoryl radical is generated through a single‐electron transfer oxidation process and plays a pivotal role in the reaction pathway.