A study on tautomeric equilibria of new hetarylazo-6-aminouracils

Seferoglu Z.

ARKIVOC, pp.42-57, 2009 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Publication Date: 2009
  • Doi Number: 10.3998/ark.5550190.0010.705
  • Journal Name: ARKIVOC
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.42-57
  • Keywords: Hetarylazo uracil dyes, azo-hydrazones, solvent effects, substituent effects, absorption spectra, HETEROCYCLIC AROMATIC SYSTEMS, DISPERSE DYES, SPECTROSCOPIC PROPERTIES, MONOAZO DYES, AZO DYES, ABSORPTION CHARACTERISTICS, SPECTRAL PROPERTIES, FACILE SYNTHESES, HETARYLAZO, DERIVATIVES
  • Gazi University Affiliated: Yes

Abstract

A series of new heterocyclic disperse azo dyes was prepared by coupling selected diazotized heterocyclic amines with 6-aminouracil. Solvent effects on the UV-visible spectra of the dyes were evaluated. Their colors were discussed with respect to the nature of the heterocyclic ring and the substituents, and the effects of acid and base on their UV-visible absorption spectra.