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Synthesis of some novel bis(hetaryl)azo disperse dyes and investigation of their absorption spectra

✍ Scribed by Zeynel Seferoǧlu; Nermin Ertan

Publisher: John Wiley and Sons
Year: 2007
Tongue: English
Weight: 388 KB
Volume: 18
Category: Article
ISSN: 1042-7163
DOI: 10.1002/hc.20361

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✦ Synopsis

Abstract

3‐Amino‐2‐cyano‐4,6‐disubstituted‐thieno{2,3‐b}pyridines and 3‐aminopyridine were diazotized and coupled with 2‐phenylindole, 2‐methylindole, and 1‐methyl‐2‐phenylindole, respectively. These dyes were characterized by UV‐Visible, FT‐IR, ^1^H NMR, and mass spectroscopic techniques. Solvent effects on the visible absorption spectra of the dyes were evaluated. The color of the dyes is discussed with respect to the nature of the heterocyclic ring and substituent present therein. In addition, effects of temperature, concentration, as well as acid and base on the visible absorption maxima of the dyes are reported. © 2007 Wiley Periodicals, Inc. Heteroatom Chem 18:622–630, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/hc.20361

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