Journal
CENTRAL EUROPEAN JOURNAL OF CHEMISTRY
Volume 6, Issue 1, Pages 81-88Publisher
DE GRUYTER POLAND SP Z O O
DOI: 10.2478/s11532-007-0062-4
Keywords
6-aminouracil; phenylazouracil; substituent effect; solvent effect; absorption spectra
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In this study, a series of new 5-phenylazo-6-aminouracil dyes were prepared by linking m-,p-nitroaniline, m-,p-chloroaniline, m-,p-anisidine, m-,p-toluidine, m-,p-cyanoaniline, p-ethoxyaniline, p-phenoxyaniline, p-ethylaniline, p-acetamidoaniline, p-acetylaniline, p-carboxyaniline and aniline to 6-aminouracil. The prepared dyes were characterized by UV-vis, FT-IR, H-1 NMR spectroscopic techniques and elemental analysis. The effect of acid and base upon the UV-vis spectra of these dyes were investigated. In addition, the solvatochromic behaviors and substituent effects in various solvents were evaluated.
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