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Spectral-luminescence properties and basicities of 2-(4-pyridyl)-5-(4-r-phenyl)oxazoles

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Chemistry of Heterocyclic Compounds Aims and scope

Abstract

The spectral-luminescence and acid-base properties of 2-(4-pyridyl)-5-(4-R-phenyl)oxazoles were studied. Significant π-electron conjugation between the individual fragments exists in the molecules of these compounds in solutions at room temperature. Bathochromic and bathofluoric effects, which are particularly appreciable for electron-donor substituents, are observed when substituents R are introduced into the 5-phenyl ring. Ethanol solutions of the investigated compounds have high fluorescence quantum yields which, for some of them, are close to unity. Electron-donor substituents R increase the basicity of the pyridine nitrogen atom.

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Authors and Affiliations

  1. Monokristallreaktiv Scientific-Industrial Union, 310141, Kharkov

    L. Sh. Afanasiadi, I. N. Tur & P. B. Kurapov

  2. K. A. Timiryazev Moscow Agricultural Academy, 127550, Moscow

    L. Sh. Afanasiadi, I. N. Tur & P. B. Kurapov

Authors
  1. L. Sh. Afanasiadi
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  2. I. N. Tur
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  3. P. B. Kurapov
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Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 4, pp. 479–482, April, 1985.

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Afanasiadi, L.S., Tur, I.N. & Kurapov, P.B. Spectral-luminescence properties and basicities of 2-(4-pyridyl)-5-(4-r-phenyl)oxazoles. Chem Heterocycl Compd 21, 397–400 (1985). https://doi.org/10.1007/BF00504397

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  • DOI: https://doi.org/10.1007/BF00504397

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