The Effect of Core-Shell Magnetic Nano Catalyst on Oxidation of Alcohols

Polyoxometalate supported silica coated magnetic nanoparticles (Fe3O4@SiO2@POM), was prepared by using low cost precursors and a facile immobilization technique. The final catalyst, which was characterized by SEM and FT-IR techniques, was found to be an efficient and environmentally benign catalyst for the oxidation of alcohols leading to the carbonyl derivatives. After the reaction, the catalyst could be effortlessly separated by external magnet and reused for 8 consecutive runs, without any significant loss in catalytic efficiency. The catalytic system presented offers a reusable strategy for the efficient synthesis of carbonyl compound, simplicity in operation, and a green reaction profile by avoiding toxic conventional catalysts, oxidant and solvents.