| Autor: |
Afanasiadi, L. Sh., Tur, I. N., Kurapov, P. B. |
| Zdroj: |
Chemistry of Heterocyclic Compounds; April 1985, Vol. 21 Issue: 4 p397-400, 4p |
| Abstrakt: |
The spectral-luminescence and acid-base properties of 2-(4-pyridyl)-5-(4-R-phenyl)oxazoles were studied. Significant p-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. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
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