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III. EUROPEAN CONFERENCE ON SCIENCE, ART & CULTURE
ECSAC’18 – NORTHERN CYPRUS
Gazimağusa, October12-14, 2018

OP-53
SYNTHESIS AND ABSORPTION PROPERTIES OF
2,4-QUINOLINE DIOL AND PYRAZOLE-DERIVED
HETEROCYCLIC DISPERSE DISAZO DYES

Aykut DEMIRÇALI 1

1 Pamukkale University, Faculty of Science and Art, Department of Chemistry, Denizli, Turkey

Azo dyes are one of the most important organic dyestuffs containing at least one conjugated chromophoric azo group.
[1]. These compounds which are produced one million tons per year in the world have a wide range of applications
in dyeing of textile tissue, colouring of different materials, biological–medical studies and organic synthesis as well as
advanced applications as corrosion inhibitors and antimicrobials [2].
Within the scope of this study, 13 pieces aniline derivative were diazotized with sodium nitrite / hydrochloric
acid. Obtained diazonium salts were reacted with malononitrile to synthesize the aryl-azo malononitrile compounds
(1a1-m). Pyrazole derivatives (2a2-m) were synthesized by hydrazine monohydrate with aryl-azo malononitrile
compounds. Eventually, synthesized pyrazole derivatives were reacted with -2,4quinoline diol and 3)-5’-amino4-’-
arylazo1-H-pyrazole5-’-yl-azo)-2,4-quinoline diol compounds (3a3-m) were obtained. The structures of (3a3-m)
compounds were characterized with AT-IR, H-NMR and UV–visible spectroscopy. In this way, 13 new disperse disazo
1
dyes containing both pyrazole and quinoline diol ring were added to dye and textile industry.

Keywords: Azo dyes, Pyrazole, -2,4quinoline diol, Dispersion

“This study was supported by Pamukkale University BAP unit with the project numbered 2018KRM155-002.”

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