Abstract
Methyl 6-(6-aryl-1,2,4-triazin-3-yl)pyridine-2-carboxylates were synthesized in up to 70% yield by one-step condensation of substituted ω-bromoacetophenones with methyl 6-(hydrazinecarbonyl)pyridine-2-carboxylate in DMF. The reaction of methyl 6-(hydrazinecarbonyl)pyridine-2-carboxylate with 2-bromo-1-[4-(methylsulfanyl)phenyl]ethan-1-one afforded exclusively the corresponding arylglyoxal bishydrazone, dimethyl 6,6′-(2,2′-{1-[4-(methylsulfanyl)phenyl]ethane-1,2-diylidene}bis(hydrazine-1-carbonyl))bis(pyridine-2-carboxylate).
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This study was performed under financial support by the Russian Science Foundation (project no. 18-73-10119).
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Shtaitz, Y.K., Savchuk, M.I., Kopchuk, D.S. et al. Efficient Synthesis of Methyl 6-(6-Aryl-1,2,4-triazin3-yl)pyridine-2-carboxylates. Russ J Org Chem 56, 548–551 (2020). https://doi.org/10.1134/S1070428020030306
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DOI: https://doi.org/10.1134/S1070428020030306