Oxidation catalyst

A method for producing a chemical compound, comprising contacting a substrate with molecular oxygen in the presence of an oxidation catalyst, thereby performing an oxidation reaction to form the chemical compound,

• said oxidation catalyst comprising at least one member selected from the group consisting of a hydrazyl radical represented by the formula (1) below and a hydrazine compound represented by the formula (2) below,
• wherein each of R1, R2 and R3 independently represents an aliphatic group, an aromatic group, a halogen atom, a hydroxyl group, a nitro group, a nitroso group, a cyano group, an amino group, an imino group, an azo group, a carbonyl group, a carboxyl group, an acyl group, an alkoxycarbonyl group, an aryloxycarbonyl group, a carbamoyl group, an alkoxyl group, an aryloxy group, a haloalkyl group, a mercapto group, an alkylthio group, an arylthio group, a sulfo group, a sulfinyl group, a sulfonyl group or a heterocyclic group, or alternatively a group having two or more of these atom and groups;
• and
• wherein two substituents selected from the group consisting of R1, R2 and R3 are optionally bonded to each other, to thereby form a ring.