9.
Synthesis and Dyeing Performance of Some New Reactive Dyes Based on
Quinazoline Moiety
Divyesh R. Patel, Jignesh T. Bilimoriya and Keshav C. Patel*
Department of Chemistry, Veer Narmad South Gujarat University,
Udhana-Magdalla, Road, Surat-395 007 Gujarat, India
Email:
divyeshpatel_905@yahoo.com
Abstract:
The synthesis of some new reactive dyes (9a-j) derived from
diazotization of 3-[4-(4-aminobenzyl)phenyl]-2-[2-(4- fluorophenyl)vinyl]-quinazoline-4(3H)-one
(5) and coupled with various 4-chloro-2-nitro anilino cyanurated
coupling components (8a-j). Their dyeing performance as reactive
dyes has been assessed on silk, wool and cotton fibres. These
dyes were characterized by IR spectra, 1H NMR spectra, visible
absorption spectroscopy and elemental analysis. The dyed fibre
showed fair to very good light fastness and very good to
excellent fastness to washing and rubbing. The dyebath
exhaustion and fixation on different fibres were found to be
very good.
KEYWORDS: Exhaustion, Fixation, Fastness properties,
Silk, Wool and Cotton.
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