Chemistry of Heterocyclic Compounds

, Volume 18, Issue 8, pp 811–813 | Cite as

Synthesis of 5H-pyridazo[4,5-b]indoles by condensation of 2-acylindole-3-carboxylic acids with hydrazine

  • G. I. Zhungietu
  • L. M. Zorin
  • V. I. Gorgos
  • M. A. Rekhter


5H-Pyridazo[4,5-b]indol-1-ones were obtained by heating 2-acetylindole-3- or 2-aroylindole-3-carboxylic acids with hydrazine hydrate in ethylene glycol or alcohol. 1-Chloro-5H-pyridazo[4,5-b]indoles are formed by treatment of 5H-pyridazo[4,5-b]indol-1-ones with phosphorus oxychloride.


Alcohol Ethylene Phosphorus Hydrate Organic Chemistry 
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Copyright information

© Plenum Publishing Corporation 1983

Authors and Affiliations

  • G. I. Zhungietu
    • 1
  • L. M. Zorin
    • 1
  • V. I. Gorgos
    • 1
  • M. A. Rekhter
    • 1
  1. 1.Institute of ChemistryAcademy of Sciences of the Moldavian SSRKishinev

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