Journal
JOURNAL OF MOLECULAR LIQUIDS
Volume 206, Issue -, Pages 309-315Publisher
ELSEVIER
DOI: 10.1016/j.molliq.2015.02.032
Keywords
Disperse dyes; Disazo dyes; Pyrazole dyes; Absorption ability; Solvatochromism; Tautomeric structure
Funding
- PAUBAP [2012FBE035]
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5-amino-4-arylazo-3-methyl-1-phenylpyrazoles (2a-k) were diazotised and coupled with 5-hydroxy-3-methyl-1H-pyrazole and 5-hydroxy-3-methyl-1-phenylpyrazole to generate two series disazo pyrazole disperse dyes (3a-k and 4a-k). These novel synthesized disazo pyrazole disperse dyes were characterized by elemental analysis and spectral methods. Absorption ability and tautomeric structure of synthesized disazo pyrazole disperse dyes substituted with electron-withdrawing and electron-donating groups at their o, m- and p-positions were also examined in detail. (C) 2015 Elsevier B.V. All rights reserved.
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