Benzyltrimethylammonium chloride can be used as a phase catalyst in The synthesis of alkyl and aryl sulfonamides from thiols and disulfides in the presence of 13-dichloro-55-dimethylhydantoin (DCH).[1] The selective oxidation of benzyl alcohol to benzaldehyde using hydrogen peroxide as oxidant.[2] The esterification reaction of ethanol and lauric acid.