Oxidation of ephedrine or norephedrine to benzaldehyde with alkaline N-bromosuccinimide or hypohalite ion.
D000447:Aldehydes; D001555:Benzene Derivatives; D002626:Chemistry, Pharmaceutical; D004809:Ephedrine; D010084:Oxidation-Reduction; D013386:Succinates
D000447:Aldehydes; D001555:Benzene Derivatives; D013386:Succinates; D004809:Ephedrine