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Chemistry of Heterocyclic Compounds

, Volume 13, Issue 5, pp 491–493 | Cite as

4-(5-Arylvinyl-2-oxazolyl)- and 4-(5-arylbutadienyl-2-oxazolyl)-naphthalic anhydrides

  • B. M. Krasovitskii
  • V. M. Shershukov
Article
  • 28 Downloads

Abstract

4-(5-Arylvinyl-2-oxazolyl)- and 4-(5-arylbutadienyl-2-oxazolyl)naphthalic anhydrides were synthesized by a phosphonate modification of the Wittig reaction from 4-(5-bromomethyl-2-oxazolyl)naphthalic anhydride. The structures of the aryl radicals and the steric hindrance created by some of them have a substantial effect on the absorption and luminescence of these compounds in solution. The introduction of each of the vinylene groups between the aryl and heterocyclic radicals causes approximately identical shifts in the spectra, but the Stokesian shift increases. These effects are reinforced considerably under the influence of electron-donor substituents in the aryl radical. The luminescence maxima of the investigated substances range from 515 to 710 nm, and the absolute quantum yields range from 0.12 to 0.51.

Keywords

Organic Chemistry Vinylene Anhydride Quantum Yield Steric Hindrance 
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

© Plenum Publishing Corporation 1977

Authors and Affiliations

  • B. M. Krasovitskii
    • 1
  • V. M. Shershukov
    • 1
  1. 1.All-Union Scientific-Research Institute of Single Crystals, Scintillation Materials, and Ultrapure Chemical SubstancesKharkov

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