Catalytic property of a series of manganese(III) complexes with tetradentate phenol- and pyridinebased ligands on the oxidation of the C-H bond of diphenylmethane in the presence of hydrogen peroxide as an oxidant at ambient conditions were investigated. In this process, diphenylmethane was oxidized to the corresponding keton and alcohol. The catalytic selectivity of the complexes was evaluated.
