Unusual reaction of α-diketones of the indole series with hydrazine

A. V. Kolotaev, L. I. Belen'kii, A. S. Kononikhin, M. M. Krayushkin

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


Symmetrical and unsymmetrical α-diketones of the indole series were synthesized by the Friedel-Crafts reaction of 3-indolylglyoxyl chlorides with heterocycles. A nonconventional reaction of N-unsubstituted diketones with hydrazine producing 3H-pyrazolo[3,4-c]quinoline derivatives was found.

Original languageEnglish
Pages (from-to)892-897
Number of pages6
JournalRussian Chemical Bulletin
Issue number5
Publication statusPublished - May 2006
Externally publishedYes


  • α-diketones
  • 3H-pyrazolo[3,4-c]quinolines
  • Heterocyclization
  • Hydrazine hydrate
  • Indol-3-ylglyoxyl chlorides


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