Novel push–pull heterocyclic azo disperse dyes containing piperazine moiety: Synthesis, spectral properties, antioxidant activity and dyeing performance on polyester fibers
作者： Asadollah Mohammadi , Behzad Khalili , Marzieh Tahavor
DOI: 10.1016/J.SAA.2015.06.024
关键词:
摘要: Six novel push-pull azo disperse dyes were synthesized via classical coupling reaction using 2-amino-thiazolyl derivatives as the diazo components and 1-(4-bromobenzyl)-4-phenylpiperazine a key intermediate. The structures of intermediate confirmed by FT-IR, (1)H NMR, (13)C NMR UV-vis analyses. solvatochromic behavior was studied in set 10 solvents different polarity considerable results obtained. prepared heterocyclic applied for dyeing polyester fibers their properties studied. fastness dyed fabrics such wash, light rubbing degrees measured standard methods. Investigation antioxidant activity compounds carried out ferric reducing power (FRAP) method. exhibited significant activities.
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