Green and reusable heteropolyacid catalyzed oxidation of benzylic, allylic and aliphatic alcohols to carbonyl compounds

Benzylic, allylic and aliphatic alcohols were transformed into the corresponding carbonyl compounds by catalytic oxidation of preyssler type heteropolyacid supported onto silica gel, H14[NaP5W30O110]/SiO2, in a heterogeneous system. The catalyst can be recovered and reused.