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Chemistry of Heterocyclic Compounds

, Volume 41, Issue 11, pp 1405–1410 | Cite as

3-Aryl- and 2,3-Diaryl-4-oxo-4,5,6,7-tetrahydroindazoles. 2. Reactions of Aryl- and Tosylhydrazones of Dimedone and 1,3-Cyclohexanedione with Some Aromatic and Heteroaromatic Aldehydes

  • I. Strakova
  • A. Strakovs
  • M. Petrova
Article

Abstract

The reactions of the phenylhydrazone and 2-chlorophenyl-, 2,4-difluorophenyl-, 4-nitrophenyl-, and 2-pyridylhydrazones of dimedone with benzaldehyde, 4-bromo-, 4-fluoro-, 4-(dimethylamino)-, 4-nitrobenzaldehydes, 2-, 3-, and 4-pyridinecarbaldehydes and 2-thiophenecarbaldehyde have given 24 novel 2,3-diaryl-4-oxo-4,5,6,7-tetrahydroindazoles. Treatment of the tosylhydrazones of dimedone and 1,3-cyclohexanedione with pyridine- and thiophenecarbaldehydes yielded 7 novel 3-pyridyl- and 3-thienyl-4-oxo-4,5,6,7-tetrahydroindazoles.

Keywords

arylhydrazones and tosylhydrazones of 1,3-cyclohexanedione 3-aryl- and 2,3-diaryl-4-oxo-4,5,6,7-tetrahydroindazoles substituted benzaldehydes pyridine- and thiophenecarbaldehydes 

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REFERENCES

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    P. Clerc and S. Simon, Tables of Spectral Data for Structural Determination of Organic Compounds, Springer-Verlag, Berlin (1989), H 275.Google Scholar

Copyright information

© Springer Science+Business Media, Inc. 2005

Authors and Affiliations

  • I. Strakova
    • 1
  • A. Strakovs
    • 1
  • M. Petrova
    • 1
  1. 1.Riga Technical UniversityRigaLatvia

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