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Synthesis and Characterization of New Heterocyclic Compounds Derived from Some Heterocyclic Amines and Evaluating of Biological Activity of Some Compounds

  1. preparation of thiazolidene-4-none (2) , imidazolidine-4-ones (3) , and oxazepine-4,7-diones (4) from schiff bases (1) by reaction with 2-mercaptoacetic acid ,glycine and malic anhydride respectively .
  2. preparation of 1-phenyl-3-hetero-2-yl urea and thiourea from reaction of hetero amines with phenylisocyanate and phenylisothiocyanate respectively .
English

Synthesis, Characterization and Study of the Electrical Properties of Some Aromatic Schiff-base Ligands and Their Cu, Ni and Co Coordination Polymers

          Four tetradentate ligands were prepared by reacting salicylaldehyde with different aromatic diamines in acidic medium (Schiff-base reaction). F.T.IR, 1H-NMR and Maldi- MS techniques were employed to identify the L1 (1,4-bis(N-o-hydroxybenzylidine)phenylene diamine)and L2 (4,4-bis(o-hydroxybenzylidene)biphenyl- amine) molecules, while only F.T.IR and 1H-NMR spectra were used in the identification of L3 (4,4-bis(o-hydroxybenzylidene)methylene-dianiline)molecules.

English

Synthesis of New Heterocyclic Compounds derived from 2-Amino-5-Mercapto-1,3,4-Thiadaiazole

The scheme of this work involves synthesis of different heterocyclic rings utilizing the two different reactive sites of 2-amino-5-mercapto-1,3,4-thiadiazole.This work is divided into four different parts:

   First Part:  Involved synthesizing two new fused rings derived from the reaction of –NH2 group of the starting material with different organic reagents. The following reaction steps shown in scheme [I] are of a feasible strategy:

English