European Journal of Chemistry

Pyridazine and its related compounds: Part 33. Synthesis of some disperse dyes derived from 3-hydrazinyl-4,5-diphenyl-1H-pyrazolo[3,4-c]pyridazine and their color assessment on polyester fabric



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Ali AbdelHamid Deeb
Mamdoh Bahgat El‐Hossami
Ahmed Awad Mohammed Abdelgawad

Abstract

Active methylene compound such as ethyl acetoacetate was coupled with diazotized arylamines to give ethyl arylazoacetoacetates. When the obtained compounds refluxed with 3-hydrazinyl-4,5-diphenyl-1H-pyrazolo[3,4-c]pyridazine in the presence of ethanol yielded 1-(4, 5-Diphenyl-1H-pyrazolo[3, 4-c]pyridazin-3-yl)-3-methyl-4-(2-phenylhydrazono)-1H-pyrazol-5(4H)-one derivatives. The dyes were applied to polyester fabric, and their absorption spectral characteristics, fastness properties and color assessment measured.


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Deeb, A. A.; El‐Hossami, M. B.; Abdelgawad, A. A. M. Pyridazine and Its Related Compounds: Part 33. Synthesis of Some Disperse Dyes Derived from 3-Hydrazinyl-4,5-Diphenyl-1H-pyrazolo[3,4-c]pyridazine and Their Color Assessment on Polyester Fabric. Eur. J. Chem. 2015, 6, 57-62.

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