Transformation of 3,4-bis(formylamino)pyridine into 4-nitro-1,2,3-triazolo[4,5-c]pyridine 2-oxide in the reaction with nitrating mixture

Author： Yutilov Yu.   Smolyar N.  

Publisher： MAIK Nauka/Interperiodica

ISSN： 1070-4280

Source： Russian Journal of Organic Chemistry, Vol.40, Iss.10, 2004-10, pp. : 1526-1527

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Abstract

Treatment of 3,4-bis(formylamino)pyridine with a mixture of concentrated nitric and sulfuric acids unexpectedly afforded 4-nitro-1,2,3-triazolo[4,5-c]pyridine 2-oxide. Reduction of the latter with iron in acetic acid gave previously known 4-amino-1,2,3-triazolo[4,5-c]pyridine.

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