Synthesis and Characterization of Some Bis-1,3 Oxazepine - 4,7- dione and 1, 3 – Diazepine -4,7- dione Derivatives

In this study, some of the new compounds have been synthesized including some of different schiff bases (1-6) via the reaction of phenyl-1,4-diamine with substituted benzaldehyde in absolute ethanol and converted into derivatives of 1,3-oxazepine-4,7-dione (7-12) via ring closure reaction [2+5] of schiff bases with maleic anhydride in dry benzene then the 1, 3- oxazepine -4, 7- compounds (7-12) were reacted with phenylhydrazine to produce 1,3-diazepine-4,7-dione (13-18). the prepared compounds were characterized by determination of melting point, ft-ir and uv-visspectra, and some of the prepared compounds have been characterized by (1h-nmr& c.h.n.) techniques.