Synthesis and dyeing properties of some new monoazo disperse dyes derived from 2-amino-4-(2',4'-dichlorophenyl)-1,3 thiazole

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Abstract

Ten new monoazo disperse dyes (4a-j) have been synthesized by coupling of diazotized 2-amino-4-(2',4'-dichlorophenyl)-1,3 thiazole (2) with various N-alkyl derivatives of substituted aniline (3a-j) and their dyeing performance on polyester fiber has been assessed. These dyes are characterized by elemental analysis, UV-vis spectra, IR and NMR spectroscopy. The absorption maxima (λmax) were recorded in DMF and were found to be in the range of 530-600nm. The dyed polyester fabric showed fair to very good light fastness and very good to excellent washing and rubbing fastness properties with superior depth and levelness.

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Patel, D. R., Patel, N. B., Patel, B. M., & Patel, K. C. (2014). Synthesis and dyeing properties of some new monoazo disperse dyes derived from 2-amino-4-(2’,4’-dichlorophenyl)-1,3 thiazole. Journal of Saudi Chemical Society, 18(6), 902–913. https://doi.org/10.1016/j.jscs.2011.11.012

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