Synthesis and Evaluation of Changes Induced by Solvent and Substituent in Electronic Absorption Spectra of New Azo Disperse Dyes Containig Barbiturate Ring

Synthesis and Evaluation of Changes Induced by Solvent and Substituent in Electronic Absorption Spectra of New Azo Disperse Dyes Containig Barbiturate Ring

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Six azo disperse dyes were prepared by diazotizing 4-amino hippuric acid and coupled with barbituric acid and 2-thiobarbituric acid.Then, the products Record Player with USB Recording were reacted with aromatic aldehyde, sodium acetate, and acetic anhydride, and oxazolone derivatives were formed.Characterization of the dyes was carried out by using UV-Vis, FT-IR, 1H NMR and 13C NMR, and mass spectroscopic techniques.The solvatochromic behavior of azo disperse dyes was evaluated in various solvents.The effects of substituents of aromatic aldehyde, Hockey Skates - Intermediate - Elite barbiturate, and thiobarbiturate ring on the color of dyes were investigated.