A photocatalytic strategy for the controllable aroylation or diaroylation of allyl sulfones was established by using tetrabutylammonium decatungstate (TBADT) as hydrogen atom transfer (HAT) photocatalyst and aldehydes as radical precursors....

A visible‐light‐induced dioxygenation of β,γ‐unsaturated oximes for the synthesis of diverse useful isoxazolines bearing a hydroxyl moiety was developed by employing graphitic carbon nitride (g‐C3N4) as a heterogeneous photocatalyst under an air atmosphere. Noted that, the eminent advantages of this metal‐free protocol include step economy, easy operation, a recyclable photocatalyst, external reductant‐/oxidant‐free and mild reaction conditions. Additionally, mechanistic studies indicated hydroxyl radical was generated under the photocatalysis of g‐C3N4.