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Chemistry of Heterocyclic Compounds

, Volume 4, Issue 6, pp 732–736 | Cite as

Infrared spectra of chalcone homologs containing a pyrrole nucleus

  • S. V. Tsukerman
  • V. P. Izvekov
  • Yu. S. Rozum
  • V. F. Lavrushin
Article
  • 81 Downloads

Abstract

The IR-spectra of 29 chalcone homologs containing a pyrrole nucleus were recorded in the solid phase, and in some cases in carbon tetrachloride solutions of varying concentrations. All the compounds studied formed intermolecular hydrogen bonds; and, when the carbonyl group was located close to the pyrrole ring (propenones-1), intramolecular hydrogen bonds were also formed. According to the distribution of substituents about the aliphatic double bond, all the ketones studied were trans-isomers; and, according to the relative distribution of carbonyl and vinyl groups, they had an s-cis-conformation. In the propenone-1 series there was a satisfactory correlation between vC=O and Hammett's σ-parameters. The corresponding frequencies were investigated.

Keywords

Hydrogen Bond Organic Chemistry Carbonyl Ketone Double Bond 
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 1971

Authors and Affiliations

  • S. V. Tsukerman
    • 1
  • V. P. Izvekov
    • 1
  • Yu. S. Rozum
    • 1
  • V. F. Lavrushin
    • 1
  1. 1.Institute of Organic Chemistry AS UkrSSRGor'kii Khar'kov State UniversityKiev

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