European Journal of Chemistry

The effect of dispersing agent on the dyeing of polyester fabrics with disperse dyes derived from 1,4-diethyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile

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Alya Al-Etaibi
Morsy Ahmed El-Apasery
Nouria Al-Awadi


1,4-Diethyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile (8), is synthesized by reacting ethyl cyanoacetate with ethyl amine to produce the amide 4, which when reacted with methyl propionylacetate, afforded compound 8. Compound 8 is then coupled with aromatic diazonium salts to give the corresponding arylhydrazono-1,4-diethyl-2,6-dioxo-1,2,5,6-tetrahydropyridine-3-carbonitrile disperse dyes, 11a-d, whose structures were elucidated by using X-ray crystal structure determinations. A high temperature dyeing method was employed to apply these dyes for polyester fabrics. The relationship between dyeing properties and the concentration of dispersing agent present in a dye bath is evaluated.


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How to Cite
Al-Etaibi, A.; El-Apasery, M. A.; Al-Awadi, N. The Effect of Dispersing Agent on the Dyeing of Polyester Fabrics With Disperse Dyes Derived from 1,4-Diethyl-2,6-Dioxo-1,2,5,6-Tetrahydropyridine-3-Carbonitrile. Eur. J. Chem. 2013, 4, 240-244.

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Supporting Agencies

Natural Science Department, College of Health Science, Public Authority for Applied Education and Training, Research grants (GS03/08), (GS01/01), (GS01/03) and (GS01/05), Fayha 72853, Kuwait
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