Synthesis and spectral properties of new hetarylazo indole dyes |
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Authors: | Z Seferoglu N Ertan |
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Institution: | (1) Department of Chemistry, Gazi University, Teknikokullar, Ankara, 06500, Turkey |
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Abstract: | A series of new hetarylazo indole dyes were synthesized by azo coupling of 2-phenyl-, 2-methyl-, and 1-methyl-1-phenyl-1H-indole with diazonium salts derived from 5-methylsulfanyl-1H-1,2,4-triazol-3-amine, 1H-1,2,4-triazol-3-amine, 5-methylisoxazol-3-amine, and 5-amino-1,3,4-thiadiazole-2-thiol. The dyes were characterized by the
IR spectra, electronic absorption spectra in the UV and visible regions, and 1H NMR and mass spectra. The effects of solvent nature, acidity of the medium, temperature, and concentration on the electronic
absorption spectra in the visible region and the dependence of the color of the dyes on the nature of heterocyclic fragment
were examined.
Published in Russian in Zhurnal Organicheskoi Khimii, 2007, Vol. 43, No. 7, pp. 1041–1047.
The text was submitted by the authors in English. |
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