Direct Oxygenation of Benzene and Its Analogues into Phenols Catalyzed by Oxovanadium(IV) Complex with Combined Use of Molecular Oxygen and Aldehyde

Abstract
In the presence of a catalytic amount of oxovanadium(IV) complexes coordinated by 1,3-diketone-type ligands, benzene and its analogues are directly oxygenated into phenols by combined use of molecular oxygen and crotonaldehyde at room temperature.