has specified product has specified reactant elemental halogen carboxylic acid halomethane methyl ketone halogenation end-of-chain chain shortening haloform reaction 2021-12-16T11:10:42Z Cleavage of methyl ketones (i.e. oxidative demethylation) with halogens (or hypohalites) in the presence of a base to give a carboxylic acid and haloform (trihalomethane). Einhorn reaction Lieben reaction RXNO RXNO:0000689