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Transformations of unsymmetrical N-hetarylformazans in acidic media

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

1-Aryl-3-phenyl-5-hetarylformazans undergo acid cleavage to give benzaldehyde hetarylhydrazones, whereas 1-hetaryl-3-phenyl-5-(4-nitrophenyl)formazans undergo acid cleavage to give benzaldehyde 4-nitrophenylhydrazones. 1-Aryl-3-phenyl-5-(6-oxo-4-methyl-2-pyrimidinyl)-formazans undergo cyclization to 1,2,4-triazolo[4,3-a]pyrimidine derivatives.

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Authors and Affiliations

  1. S. M. Kirov Ural Polytechnic Institute, 620002, Sverdlovsk

    N. P. Bednyagina, E. S. Karavaeva, G. N. Lipunova, L. I. Medvedeva & B. I. Buzykin

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  1. N. P. Bednyagina
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  2. E. S. Karavaeva
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  3. G. N. Lipunova
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  4. L. I. Medvedeva
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  5. B. I. Buzykin
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1268–1270, September, 1977.

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Bednyagina, N.P., Karavaeva, E.S., Lipunova, G.N. et al. Transformations of unsymmetrical N-hetarylformazans in acidic media. Chem Heterocycl Compd 13, 1024–1026 (1977). https://doi.org/10.1007/BF00472465

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  • DOI: https://doi.org/10.1007/BF00472465

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