Nitration of amino- and diaminopyridines and -picolines led, in unexpected one-step reactions, to dinitrated derivatives. Dinitropicolines gave styrylpyridines, and 2-amino-6-hydroxy-3,5-dinitropyridine was transformed by the thermolysis of its azido derivative into 5-amino-6-nitro[1,2,5]oxadiazolo[3,4-b]pyridine. Using ¹H and ¹³C nmr spectroscopy, azido-tetrazole tautomerism of 2-amino-6-azido-3,5-dinitropyridine and intramolecular hydrogen bonding at 20° for several 2-amino-3,5-dinitro-6-R-pyridines have been proved.

中文翻译：

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硝化氨基和二氨基吡啶的合成与反应

氨基和二氨基吡啶和-甲基吡啶的硝化在意外的一步反应中导致了亚硝化的衍生物。Dinitropicolines得到苯乙烯基吡啶，然后通过将其叠氮基衍生物热解，将2-amino-6-hydroxy-3,5-dinitropyridine转化为5-amino-6-nitro [1,2,5] oxadiazolo [3,4- b ]吡啶。使用¹ H和¹³ C NMR光谱，对于几个2-氨基-3,5-二硝基-6- 2-氨基-6-叠氮基-3,5-二硝基和分子内氢键，在20℃的叠氮基-四唑互变异构- [R -吡啶已被证明。