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ISSN (PRINT):0974-7451

Abstrakt

Synthesis and absorption spectra of alkali clearable azo dyes of 5-aminoisophthalic acid

H.R.Mallikarjuna, J.Keshavayya, K.M.Mahadevan, M.N.K.Harish


The synthesis of novel, alkali clearable dyestuffs derived from the naphthanilides (5a-h) have been described. 3-carboxy-2-hydroxy naphthanilides (4a-h) were used as coupling agent, and 5-aminoisophthalic acid (3) as diazo component. The dyes were characterized by using FT-IR, 1H and 13C NMR spectroscopy. The absorption maxima of dyes in acidic and basic conditions in various solvents have been evaluated.


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