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

Seferoglu Z. , Ertan N.

Heteroatom Chemistry, vol.18, no.6, pp.622-630, 2007 (Journal Indexed in SCI Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 18 Issue: 6
  • Publication Date: 2007
  • Doi Number: 10.1002/hc.20361
  • Title of Journal : Heteroatom Chemistry
  • Page Numbers: pp.622-630


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, 1H 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.