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Chemistry of Heterocyclic Compounds

, Volume 8, Issue 4, pp 445–448 | Cite as

Structure and properties of 1-acylpyrazolines

  • M. A. Lapitskaya
  • A. D. Garnovskii
  • G. A. Golubeva
  • Yu. V. Kolodyazhnyi
  • S. A. Alieva
  • A. N. Kost
Article

Abstract

Proton magnetic resonance spectroscopy and the method of dipole moments demonstrated that 1-acylpyrazolines exist primarily in the s-trans form, which is stabilized by the repulsion of like-charged nitrogen and oxygen atoms. Simultaneous reduction of the C =O and C =N bonds was observed during the action of lithium aluminum hydride on 1-formyl-and 1-trifluoroacetylpyrazolines, which is explained by the relatively high polarity of the C=N bond.

Keywords

Oxygen Nitrogen Aluminum Spectroscopy Lithium 
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

© Consultants Bureau 1974

Authors and Affiliations

  • M. A. Lapitskaya
    • 1
    • 2
  • A. D. Garnovskii
    • 1
    • 2
  • G. A. Golubeva
    • 1
    • 2
  • Yu. V. Kolodyazhnyi
    • 1
    • 2
  • S. A. Alieva
    • 1
    • 2
  • A. N. Kost
    • 1
    • 2
  1. 1.M. V. Lomonosov Moscow State UniversityUSSR
  2. 2.Rostov State UniversityRostov-on-Don

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