Patent ID: 8394995

Claim:
A process for the preparation of a carbonyl compound, comprising a step of: oxidizing an alcohol in at least one solvent selected from the group consisting of an ester solvent, a nitrile solvent, a halogen solvent, an aromatic solvent, a ketone solvent, an ether solvent, and a nitroalkane solvent, in the presence of an oxidant and a 2-iodobenzenesulfonic acid represented by formula (I) or a salt thereof, wherein R 1 and R 2 independently represent hydrogen, a halogen, an alkyl or an alkoxy group, each of which optionally has a substituent, or R 1 and R 2 combine the two carbon atoms to which they are bonded to form an aromatic ring, the carbonyl compound is an aldehyde, ketone, carboxylic acid, ester or lactone, and the oxidant is a peroxymonosulfuric acid salt.