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Microwave‐Assisted Synthesis of Arylazoaminopyrazoles as Disperse Dyes for Textile Printing
Author(s) -
Khattab Tawfik A.,
Haggag Karima M.,
Elnagdi Mohamed H.,
Abdelrahman Amal A.,
Abdelmoez Aly Sherif
Publication year - 2016
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201600148
Subject(s) - cyanoacetic acid , polyester , elemental analysis , textile , spectroscopy , mass spectrometry , microwave , materials science , dyeing , chemistry , nuclear chemistry , polymer chemistry , organic chemistry , composite material , chromatography , physics , quantum mechanics
The synthesis of heterocyclic azo‐dyes via conventional heating and microwave (MW) heating was investigated. From a sequence of reactions starting from cyanoacetic acid, 4‐arylazo‐2 H ‐pyrazol‐3‐ylamines and 4‐arylazo‐2‐phenyl‐2 H ‐pyrazol‐3‐ylamines were obtained. The structures these compounds were obtained by inspection of spectroscopic and analytical techniques including 1 H and 13 C NMR spectroscopy, IR spectroscopy, mass spectrometry, and elemental analysis. The fastness properties and UV/Vis absorption spectroscopic data of these disperse dyes in printing polyester fabrics were investigated.