Synthesis and characterization of new seven-membered heterocyclic compounds from reaction of new schiff-bases with maleic and phthalic anhydrides

Abstract EN

A series of new Schiff base and 1,3-Oxazepine compounds have been synthesized.

4-Aminophenazone was condensed with various aromatic aldehydes in ethanol in the presence of glacial acetic acid as catalyst to yield the Schiff base [2-4].

These Schiff bases were reacted with maleic anhydride and phthalic anhydride in dry benzene to give a seven-membered heterocyclic ring derivatives [5-7] and [8-10], respectively.

The prepared compounds were identified by their uncorrected melting points, elemental analysis and FT-IR spectra.