Abstract
1-Acyl-5-hydrazino-2-pyrazolines have been obtained by reaction of the appropriate hydrazines with aliphatic 1,3-diketones, 1-acyl-5-hydroxy-2-pyrazolines, and 1-acyl-5-methylene-2-pyrazolines. The latter were synthesized by acylating 3,4,4,5-tetramethyl-4H-pyrazole with carboxylic anhydrides. The structures of the products were established by 1H and 13C NMR spectroscopy and mass spectrometry.
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1210–1218, September, 1987.
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Zelenin, K.N., Malov, M.Y., Zerova, I.V. et al. 5-Hydrazino-2-pyrazolines. Chem Heterocycl Compd 23, 967–974 (1987). https://doi.org/10.1007/BF00475362
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DOI: https://doi.org/10.1007/BF00475362