Vanadium phosphorus oxide modified by silver doping: A highly effective catalyst for allylic oxidation of cycloolefins

Allylic oxidation of cycloolefins was carried out over Ag-VPO catalyst using tert-butyl hydroperoxide (TBHP) as oxidant in argon atmosphere, under our reaction conditions, attack of the activated C–H bonds was preferred instead of the epoxidation of C=C bond and corresponding α, β-enones were obtained as the main products. It is a high yielding, safe and eco-friendly method.

An efficient allylic oxidations of cycloolefins over silver doped VPO catalyst in an environmentally benign oxidation protocol involving aqueous tert-butyl hydroperoxide in argon atmosphere was reported. Also, a redox mechanism was proposed basing on the cyclohexene.Figure optionsDownload as PowerPoint slideHighlights
► Silver doped vanadium phosphorus oxides (Ag-VPO) as catalysts.
► Catalysts for allylic oxidation of cycloolefins.
► High enones yields of cycloolefins oxidations are achieved.
► It is a high yielding, safe and eco-friendly method.