V. M. Shershukov, B. M. Krasovitskii
Dec 1, 1977
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Journal
Chemistry of Heterocyclic Compounds
Abstract
Abstract4-(2-Methyl-5-oxazolyl)naphthalic anhydridewas synthesized by heating ω-aminomethyl 5-acenaphthyl ketone hydrochloride with acetic anhydride and subsequent oxidation of the resulting 2-methy1-5-(5-acenaphthyl)oxazole. 4-(2-Methyl-5-oxazolyl)-naphthalic acid phenylimide and 4(3)-(2-methyl-5-oxazolyl)-7-oxo-7H-benzimidazo-[1,2-b]benzo[de]isoquinoline were obtained by condensation of 4-(2-methy1-5-oxazo-lyl)naphthalic anhydride with aniline and o-phenylenediamine. The coincidence of the directions of polarization of the C=N bond of the oxazole ring and the electronic shifts in the π system of the anhydride and phenylimide molecules leads to an increase in the quantum luminescence yield.