Synthesis and Characterization of Some O-[2-’’2Substituted Aryl (’’1,’’3,’’4 thia diazolyl) [’3,’4-b]-’1,’2,’4- Triazolyl]-Ethyl]-p- chlorobenzald oxime Derivatives., volume=27, url=https://jih.uobaghdad.edu.iq/index.php/j/article/view/343, abstractNote= In this study new derivatives of O-[2-’’2-Substituted Aryl (’’1,’’3,’’4 thia diazolyl) [’3,’4b]-’1,’2,’4- Triazolyl]-Ethyl]-p- chlorobenzald oxime (6-11) have been synthesized from the starting material p-chloro â€“ E- benzaldoxime 1. Compound 2 was synthesized by the reaction of p-chloro â€“ E- benzaldoxime with ethyl acrylate in basic medium. Refluxing compound 2 with hydrazine hydrate in ethanol absolute afforded 3. Derivative 4 was prepared by the reaction of 3 with carbon disulphide, treated of compound 4 with hydrazine hydrate gave 5. The derivatives (6-11) were prepared by the reaction of 5 with different substitutes of aromatic acids. The structures of these compounds were characterized from their melting points, infrared spectroscopy, elemental analysis and 1HNMR (some of them). Compounds (6-11) were exhibited biological activity against E- coli bacteria. Compound 9 exhibited higher degree of activity than the other. Key words:Synthesis of new derivatives of thiaduazol and triazol compounds , number=2, journal=Ibn AL-Haitham Journal For Pure and Applied Sciences, author=Hussain, Eman M., year=2017, month=Apr., pages=188–197