Abstract

Abstract: new 1,3-oxazepine derivatives containing azo group have been prepared. The first step, ( benzidine) was converted to 4,4'- bis(3-amino phenol)Azo benzidine [A]. by coupling reaction with 3-amino phenol, Then amine group of the azo derivative [A] was condensed with different aromatic aldehydes [4-chlrobenzaldehyde,3-hydroxybenzaldehyde,p-dimethyleamin -obenzaldehyde,4-bromobenzaldehyde,4-hydroxy-3-methoxybenzaldehyde,4-chloro-3-hydroxy- benzaldehyde, 3,4-dimethylbenzaldehyde, 4-hydroxybenzaldehyde ] in absolute ethanol to give new azo Schiff bases derivatives [B1-B8] respectively. resulting imines derivatives [B1-B8] were reacted with maleic anhydride and phathalic anhydride in dry benzene to give new 1,3-oxazepine-4,7-dione ring derivatives[C1a-C8a]and[C1b-C8b] respectively. For the last derivatives thermal properties were determind by using Thermo gravimetric analysis (TGA),All these compounds were characterized by melting points and FT.IR spectroscopy, some of them were characterized by1H-NMR spectroscopy ,C.H.N analysis and TGA analysis.