Abstract
Using 1H and 13C NMR and IR spectroscopic methods, it was found that 2-azido-4-methylpyrimidine exists in solutions in tautomeric equilibrium with two tetrazole forms, the ratio between which is determined by the polarity of the solvent, while in a crystalline state, according to the 13C NMR CP MAS data it has the structure of the 7-methyltetrazolo[1,5-a]pyrimidine isomer.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1648–1654, December, 1990.
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Krivopoalov, V.P., Mamatyuk, V.O. & Mamaev, V.P. 1H and 13C NMR study of azido-tetrazole tautomerism of 2-azido-4-methylpyrimidine. Chem Heterocycl Compd 26, 1370–1375 (1990). https://doi.org/10.1007/BF00473966
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DOI: https://doi.org/10.1007/BF00473966