Synthesis and Spectroscopic Study of Naphtholic and Phenolic Azo Dyes
Olayinka O. Ajani, Oluwabunmi E. Akinremi, Alice O. Ajani, Abiola Edobor-Osoh, Winifred U. Anake
Physical Science International Journal · pp. 28–41 · Published 4 Mar 2013
Abstract
Azo dyes are extremely important in variety of industries for variety of technical purposes. Hence, a series of naphtholic azo dyes 1-9 were synthesized via diazotization of substituted aniline derivatives followed by azo coupling with 2-naphthol. In similar manner, diazotization followed by azo coupling with phenol afforded phenolic azo dyes 10-17 in excellent yields. The chemical structures of all synthesized compounds were confirmed using analytical data and spectroscopic technique which include Uv-visible, IR, Mass spectra, 1H- and 13C-NMR.
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