Bis(reissert compounds) from reaction of monoaldehyde, monoamine and diacid halide

A bis Reissert can be formed by the initial reaction of an aliphatic or aromatic aldehyde (e.g., propionaldehyde) and primary amine (e.g., methylamine) to form a reaction product which is then reacted with a diacid chloride (e.g., adipoyl chloride).