has specified product has specified reactant ketone carboxylic ester molecular skeleton insertion reaction Baeyer-Villiger oxidation A reaction of a ketone to give an ester, in which an alkyl, benzyl or phenyl group migrates from one of the alpha-carbon centres to an adjacent oxygen, displacing an oxygen-based leaving group; the result is a formal insertion of an oxygen atom. The reaction also works with aldehydes, giving the corresponding carboxylic acid. The term "Baeyer-Villiger rearrangement" may occasionally be used in a mechanistic sense to refer specificially to the actual rearrangement step. B-V reaction Baeyer-Villiger oxidative rearrangement Baeyer-Villiger reaction Baeyer-Villiger rearrangement RXNO RXNO:0000031 RXNO:0000190 https://www.rsc.org/Merck-Index/reaction/r13/ https://www.wikidata.org/wiki/Q182033