AbstractFremy salt oxidation of 3‐chloroiminodibenzyl yields a mixture of two isomeric iminequinones, which can be separated and reduced to aminophenols and the phenolic group protected with addition of dihydropyran. Introduction of theN,N‐dimethylaminopropyl side chain and removal of the protective group provided the two chlorohydroxyimipramines, which can serve as standards for the identification of possible biotransformation products of the parent drug, clomipram