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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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نویسنده
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hamidian h. ,zahedian n. ,ghazanfari d. ,fozooni s.
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منبع
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journal of spectroscopy - 2013 - دوره : 2013 - - کد همایش:
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چکیده
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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 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,barbiturate,and thiobarbiturate ring on the color of dyes were investigated. © 2013 hooshang hamidian et al.
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آدرس
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payame noor university, ایران, department of chemistry,azad university, ایران, department of chemistry,azad university, ایران, shahid bahonar university of kerman, ایران
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Authors
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