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Chemistry of Heterocyclic Compounds

, Volume 32, Issue 2, pp 221–226 | Cite as

Reactions of 2-amino- and 2-hydrazinobenzimidazoles with 2-acyldimedones

  • A. Ya. Strakov
  • M. V. Petrova
  • Ju. Popelis
  • A. A. Krasnova
  • N. A. Strakova
Article

Abstract

The reaction of 2 formyldimedone with 2-amino- and 2-hydrazinobenzimidazoles at 20°C in ethanol gave 2-(2-benzimidazolyl)aminomethylene- and 2-[2-(2-benzimidazolyl)hydrazinomethylene]-5,5-dimethylcylohex-anediones, while this reaction carried out in ethanol at reflux in the presence of acid gave 2,2-dimethyl-4-oxo 1, 2, 3, 4-tetrahydroquinazolino(1, 2-a]benzimidazole and 1-(2-benzimidazolyl)-6, 6-dimethyl-4-oxo-4, S, 6, 7-tetrahydroindazole, respectively.

Keywords

Organic Chemistry Benzimidazole Aminomethylene 
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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Copyright information

© Plenum Publishing Corporation 1996

Authors and Affiliations

  • A. Ya. Strakov
    • 1
    • 2
  • M. V. Petrova
    • 1
    • 2
  • Ju. Popelis
    • 1
    • 2
  • A. A. Krasnova
    • 1
    • 2
  • N. A. Strakova
    • 1
    • 2
  1. 1.Riga Technical UniversityRigaLatvia
  2. 2.Latvian Institute of Organic ChemistryRigaLatvia

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