Chemistry of Heterocyclic Compounds

, Volume 3, Issue 2, pp 567–569 | Cite as

Researches on substituted arylamides of dithiocarboxylic acids

IX. Cyclizing N-arylcyanoacetamides to pyrazole derivatives
  • A. D. Grabenko
  • L. N. Kulaeva
  • P. S. Pel'kis
Article
  • 24 Downloads

Abstract

Reaction of N-aryl cyanoacetamides with hydrazine hydrate, or its monoaryl-substitution products, gives 3-arylamino-5-aminopyrazoles and 1-aryl-3-arylamino-5-aminopyrazoles. Treatment of aminopyrazoles with aryldiazonium chlorides leads to isolation of the arylazo derivatives. A hypothesis that the pyrazole derivatives synthesized have an amine structure is put forward on the basis of their chemical properties and IR spectra.

Keywords

Hydrazine Hydrate Pyrazole Derivative Aminopyrazoles Diacetyl Derivative Cyanoacetanilide 

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Copyright information

© The Faraday Press, Inc. 1969

Authors and Affiliations

  • A. D. Grabenko
    • 1
  • L. N. Kulaeva
    • 1
  • P. S. Pel'kis
    • 1
  1. 1.Institute of Organic ChemistryAS UkrSSRKiev

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