الخلاصة

ABSTRACT: The aim of this work, synthesis of heterocycles included more than one hetero atom like (N, S, O) to produce various cycles [3-8] membered ring. This work involved five parts, included synthesis of compounds [1-20] first part includes synthesis of three compounds [1,11,17] through reaction between 4-alimethyl amino benzaldehyde with different primary aromatic amines to give (schiff bases ), second part involved synthesis of compounds [2, 1218, 20] from reaction between schiff bases with (maliec anhydride m, cystiene, 3,5dinitro salcylic acid , 0-thiol benzoic acid, alanine ) to give (oxazepine, imidazolidine, oxazine ) third part synthesis of diazepine compounds [3-5] from reaction between oxazepine with (hydro guandine, thiosimecarbazide, thiourea ) four part involved synthesis of compounds [6- 10] from reaction between Diazepine with (di chloro methane, benzoic acid, oxalic acid, di chloro ethane ) to give (three, four, five) rings, five part involved of compounds [13-16] from reaction between five membered with (phthalic anhydride, malic anhydride, oxalic acid, dichloro ethane) to give (three, five, six, eight), six part include: study of chromatography. The structure of these compounds were characterized by (H.NMR, FI.IR, C.H.N) -techniques and their melting points, then study of chromatography behavior. KEYWORDS: Oxazepine, diazepine, maziridine, schiff base, melamine, four membered, eight membered