Electrochemical Radical Allylation Reaction of Arylphosphine Oxides

Functionalized organophosphorus compounds are key structural motifs in many natural products and pharmaceutical chem‐icals. Herein, we describe the electrochemical radical allylation reaction for the direct and efficient construction of C(sp3)−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 play a pivotal role in the reaction pathway.