In this contribution new oxazepine compounds containing azo group were preppared. In the firststep,4-(dimethylamino)-3-((4-methoxy phenyl) diazenyl) benzaldehyde [Z] was synthesised by using 4-methoxyaniline. The second step was the condensation reaction between aldehyde group of the azo compound [Z] and different primary aromatic amines [4-hydroxyaniline, 4-chloroaniline and 4-amino-N-(pyrimidin-2-yl) benzenesulfonamide] to yield new azo Schiff bases compounds [A 1-A 3 ] respectively. In the final step, oxazepine compounds [B 1-B 3 ] and [B 4-B 6 ] were prepared from reaction imines compounds [A 1-A 3 ] with maleic anhydride and phathalic anhydride in dry benzene respectively. All these derivatives were characterized by melting points and FTIR spectroscopy, some of them were characterized by 1 H-NMR spectroscopy.

In this study, chalcones were synthesis by condensing 2-acetylpyridine with aromatic aldehyde derivatives in dilute ethanolic potassium hydroxide solution at room temperature according to Claisen-Schmidt condensation. After that, new heterocyclic derivatives such as Oxazine, Thiazine and Pyrazol were synthesis by reaction between chalcones with urea, thiourea and hydrazine hydrate respectively scheme 1. All these compounds wrer characterization by FTIR, 1H-NMR spectroscopy and elemental analysis.