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1,2,4-Triazine Chemistry Part I: Orientation of cyclization reactions of functionalized 1,2,4-triazine derivatives Abdel-Rahman, Reda Mohammady Makki, Mohammed Saleh Tawfik Ali, Tarik El-Sayed Ibrahim, Magdy Ahmed 1 2 4-Triazines Chemical reactivity Cyclization reactions Orientation of heterocyclization reactions of functionalized 1,2,4-triazines were studied by effect of substituents in 1,2,4-triazine moieties, type of the solvent used in the reaction and the temperature effect. Also, it was found that cyclization process depended mainly on the chemoselective and regioselectivity states of the parent substrate as well as preferring cite of ring closure. Atlanta Publishing House LLC 2010-09-29 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://www.eurjchem.com/index.php/eurjchem/article/view/54 10.5155/eurjchem.1.3.236-245.54 European Journal of Chemistry; Vol. 1 No. 3 (2010): September 2010; 236-245 2153-2257 2153-2249 eng https://www.eurjchem.com/index.php/eurjchem/article/view/54/PDF