Abstract
3(5)-Diazonia-4-nitropyrazole hydrochloride, which readily undergoes nucleophilic substitution, is formed by diazotization of 3(5)-amino-4-nitropyrazole. Depending on the conditions, in the diazotization of 3,5-diamino-4-nitropyrazole one or both amino groups undergo reaction. Moreover, a nitro group is simultaneously replaced by a hydroxyl group, and the final product is 3,5-bisdiazo-4-pyrazolone.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 12, pp. 1649–1653, December, 1976.
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Latypov, N.V., Silevich, V.A., Ivanov, P.A. et al. Diazotization of aminonitropyrazoles. Chem Heterocycl Compd 12, 1355–1359 (1976). https://doi.org/10.1007/BF00476726
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DOI: https://doi.org/10.1007/BF00476726