Chemistry of Heterocyclic Compounds

, Volume 15, Issue 4, pp 435–438 | Cite as

Dipyrazolinyl-substituted 1,4-distyrylbenzenes

  • R. A. Minakova
  • L. Ya. Malkes
  • L. A. Kutulya
  • A. I. Bedrik


A number of dipyrazolinyl-substituted 1,4-distyryl- and 1,4-distyryl-2-methylbenzenes — new luminophores that have intense yellow-green luminescence — were obtained by the Wittig reaction by refluxing 1-(4-formylphenyl)-3-aryl-5-phenyl-2-pyrazolines and aromatic bisphosphonium salts in isopropyl alcohol in the presence of sodium isopropoxide. The low reactivities of the aldehydes used and the predominant formation of trans isomers in the Wittig reaction are noted. Data from the IR and electronic absorption spectra and the fluorescence spectra of the synthesized compounds are presented.


Sodium Alcohol Organic Chemistry Absorption Spectrum Aldehyde 
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Copyright information

© Plenum Publishing Corporation 1979

Authors and Affiliations

  • R. A. Minakova
    • 1
  • L. Ya. Malkes
    • 1
  • L. A. Kutulya
    • 1
  • A. I. Bedrik
    • 1
  1. 1.All-Union Scientific-Research Institute of Single Crystals, Scintillation Materials, and Ultrapure Chemical SubstancesKharkov

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