Some heterocyclic azo dyes derived from thiazolyl derivatives; synthesis; substituent effects and solvatochromic studies

MR Yazdanbakhsh, A Mohammadi…

Index: Yazdanbakhsh; Mohammadi; Abbasnia Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2010 , vol. 77, # 5 p. 1084 - 1087

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Citation Number: 16

Abstract

A series of azo disperse dyes were synthesized by coupling reaction of N, N-diethylaniline, 2- anilinoethanol and N-phenyl-2, 2′-iminodiethanol with diazotized aminothiazolyl derivatives as diazo components. These dyes have been prepared in good yields, and were characterized by UV–Vis, FT-IR and 1H NMR spectroscopic techniques. The effects of solvent polarity and various pH on dyes in the visible absorption spectra were evaluated. ...