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Chemistry of Heterocyclic Compounds

, Volume 14, Issue 10, pp 1160–1162 | Cite as

2,3-Diphenyl-1,2,3-triazolo[1,5-a]pyrimidinium salts

  • V. A. Chuiguk
  • P. D. Medik
Article

Abstract

2,3-Diphenyl-1,2,3-triazolo[1,5-a]pyrimidinium salts, the structure of which was confirmed by the PMR spectra, were obtained by condensation of 4-amino-1,5-diphenyl-1,2,3-triazole with β-diketones and their analogs in trifluoroacetic acid. The corresponding 4-acylvinylaminotriazoles are formed by the action of alkali on these salts. It was established that the salts with a methyl group in the 7 position do not form polymethine dyes, whereas the 5,7-dimethyl derivative does gives dyes owing to the activity of the methyl group in the 5 position. The ability of the 5,7-dimethyl derivative to undergo cyanine condensations is explained by the betaine cationic structures of the salts obtained.

Keywords

Methyl Organic Chemistry Pyrimidinium Triazole Betaine 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Literature cited

  1. 1.
    S. I. Shul'ga and V. A. Chuiguk, Ukr. Khim. Zh., 38, 475 (1972).Google Scholar
  2. 2.
    V. A. Chuiguk, Ukr. Khim. Zh., (1978, in press).Google Scholar
  3. 3.
    I. P. Bachkovskii, and V. A. Chuiguk, Khim. Geterotsikl. Soedin., No. 12, 1493 (1975).Google Scholar
  4. 4.
    G. M. Golubushina, O. G. Ponomarenko, G. N. Poshtaruk, and V. A. Chuiguk, Khim. Geterotsikl. Soedin., No. 6, 843 (1974).Google Scholar
  5. 5.
    J. R. H. Sawyer and D. G. Wibberley, J. Chem. Soc., Perkin Trans. I, 1138 (1973).Google Scholar
  6. 6.
    O. Dimroth, E. Frisoni, and J. Marschall, Ber., 39, 3920 (1906).Google Scholar

Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • V. A. Chuiguk
    • 1
  • P. D. Medik
    • 1
  1. 1.T. G. Shevchenko Kiev State UniversityKiev

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