Microwave assisted synthesis of [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazine Derivatives
الموضوعات : International Journal of Heterocyclic ChemistryJavad Azizian 1 , Ramin Miri 2 , Mohammad Kazem Mohammadi 3
1 - Factually of Science, Islamic Azad University, Science and Research Branch, Tehran, Iran.
2 - Medicinal & Natural Products Chemistry Research Center , Shiraz University of Medical Sciences , Shiraz , Iran
3 - Factually of science , Ahvaz Branch Islamic Azad University , Ahvaz , Iran .
الکلمات المفتاحية: heterocyclization, 5-Bromo-2, 4-dichloro-6-methylpyrimidine, Pyrimido[4, 5-e][1, 3, 4]thiadiazine, Binucleophile, Bielectrophile,
ملخص المقالة :
New pyrimido [4, 5-e] [1, 3, 4]thia- diazin-7-yl] hydrazines were synthesized via the cyclocondensation of alkyl-2-phenylhydrazinecarbodithioates as a binucleophile with 5-bromo-2,4-dichloro-6-methylpyrimidine as a bielectrophile , and replacement of C-7 chloro atom by hydrazine in ethanol as the solvent . This method has advantages over methods currently described in the literature for the construction of such heterocyclic ring systems.
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