Synthesis of some new annellated 1,2,4-triazole systems from methyl 5-phenyl-2-hydrazinothiazolecarboxylate

Authors

  • B. А. Мамeдов A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Science Center, Russian Academy of Sciences, Kazan 420083
  • B. H. Вaлeева A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Science Center, Russian Academy of Sciences, Kazan 420083
  • Л. А. Антохина A. E. Arbuzov Institute of Organic and Physical Chemistry, Kazan Science Center, Russian Academy of Sciences, Kazan 420083

Abstract

The heterocyclization of hydrazides, prepared from methyl 5-phenyl-2-hydrozinothiazole-4-carboxylate and organic acids or their anhydrides, leads to the production of thiazolo[2,3-c]triazoles which do not undergo rearrangement to the corresponding thiazolo[3,2-b]triazoles under the action of mineral acids. The 2-trifluoroacetylhydrazine derivative does not cyclize, even under severe conditions.

How to Cite
Mamedov, V. A.; Valeeva, V. N.; Antokhina, L. A. Chem. Heterocycl. Compd. 1995, 31, 355. [Khim. Geterotsikl. Soedin. 1995, 406.]

For this article in the English edition, see DOI https://doi.org/10.1007/BF01373557

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Published

1995-03-25

Issue

No. 3 (1995)

Section

Original Papers