Synthesis of some novel heterocyclic dyes derived from pyrazole derivatives

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• 作者：H.F. Rizk ; M.A. El-Badawi ; S.A. Ibrahim ; M.A. El-Borai
• 关键词：Azo coupling ; Disperse dyes ; Fastness properties ; Polyester ; Pyrazoles ; Wool
• 刊名：Arabian Journal of Chemistry
• 出版年：2011
• 出版时间：January 2011
• 年：2011
• 卷：4
• 期：1
• 页码：37-44
• 全文大小：406 K

文摘

Diazotized aryl amines were coupled with 3-substituted 5-amino pyrazoles to produce a series of novel 3-substituted 5-amino-4-arylazopyrazoles. Also, 3-substituted 5-amino-pyrazoles were diazotized and coupled with different phenols to give the corresponding novel 3-substituted 5-aryl azo pyrazoles. These dyes were characterized by elemental analysis and spectral data, applied to different types of fibres (wool, polyester and a blend of wool/polyester as disperse dyes) and their fastness properties were evaluated.