The reaction of o-phenylenediamine with ethoxymethylene compounds and aromatic aldehydes

Abstract

Disubstituted o-phenylenediamines 10 were generated by reaction with ethoxymethylene malononitrile, ethyl ethoxymethylene cyanoacetate and diethyl 2-(ethoxymethylene)-malonate, followed by aromatic aldehydes. These compounds proved to be highly stable even under microwave irradiation. This feature, associated to a convenient substitution pattern, makes them suitable candidates to be tested for their biological activity or to be used as ligands for the preparation of metal complex catalysts.