Selective Liquid Phase Ammoxidation of Aromatic Aldehydes to Aromatic Nitriles with VPO TitaniaHeterogeneous Catalysts in Air

Preparation of 2-chlorobenzonitrile, and benzonitrile are reported here fromthe corresponding 2-chlorobenzaldehyde and benzaldehyde by the reaction of ammoniumhydroxide/vpo titania, vpo bulk (ammonium metavanadate) cucr catalyst/air system in methanol.all these catalysts showed better conversions with reasonable selectivity to aromatic. the resultsprove that bet surface area results show vpo is present on the catalysts surface which has highsurface area, attributed to increase in activity of the catalysts.