[VO(PS-BBMA)](SO4) catalyzed α-oxygenation of benzylamines to amides in solvent free condition

Abstract Polymer anchored [VO(PS-BBMA)]SO 4 and unsupported [VO(BBMA)]SO 4 catalysts were synthesized and characterized by elemental analyses, FT-IR, ESR, UV–vis diffuse reflectance spectroscopy (DRS), thermogravimetric analysis (TGA), and vibrating sample magnetometry (VSM). A protocol for the synthesis of benzamides from benzylamine has been developed using [VO(PS-BBMA]SO 4 as an effective catalyst under solvent free conditions in presence of H 2 O 2 . The reactions provide good yields of the corresponding amide products with substrate scope and excellent functional group compatibility. The developed catalyst can be facilely recovered, heterogeneous, compared with unsupported analogue and reused six times without significant decrease in its activity.