Abstract
5, 7-Dimethyl-1,2,4-triazolo [4, 3-α] pyrimidine is isomerized in the presence of various nucleophilic agents to 5, 7-dimethyl-1,2,4-triazole [1, 5-α] pyrimidine via a rearrangement of the Dimroth type. Under the influence of hydrazine hydrate, both triazolopyrimidines are converted to a mixture of 3, 5-dimethylpyrazole and 3-amino-1, 2, 4-triazole.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 706–708, May, 1976.
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Kost, A.N., Sagitullin, R.S. & Danagulyan, G.G. Isomerization of 5, 7-dimethyltriazolo [4, 3-α]-pyrimidine under the influence of alkaline agents. Chem Heterocycl Compd 12, 594–596 (1976). https://doi.org/10.1007/BF00470121
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DOI: https://doi.org/10.1007/BF00470121