Synthesis, characterization and spectroscopic properties of some new azo disperse dyes derived from 4-hydroxybenzo[h]quinolin-2-(1H)-one as a new synthesized enol type coupling component

2012 ◽  
Vol 95 (3) ◽  
pp. 632-638 ◽  
Author(s):  
E.O. Moradi Rufchahi ◽  
A. Ghanadzadeh Gilani
Keyword(s):  
Spectroscopic Properties ◽  
Disperse Dyes ◽  
Type Coupling ◽  
Azo Disperse Dyes

Study of the Relationships between the Chemical Structures of Azo Disperse Dyes and their Dyeing Properties on Polyester

2010 ◽  
Vol 93-94 ◽  
pp. 332-335 ◽  
Author(s):  
T. Mungmeechai ◽  
Suesat Jantip ◽  
P. Suwanruji
Keyword(s):  
Bathochromic Shift ◽  
Spectroscopic Properties ◽  
Poly Lactic Acid ◽  
Disperse Dyes ◽  
Light Fastness ◽  
Dyeing Properties ◽  
Chemical Structures ◽  
Azo Disperse Dyes ◽  
Poly Ethylene ◽  
Dyed Fabrics

A series of azo disperse dyes was synthesized using 4-nitro aniline and 2-chloro-4-nitro aniline as diazo components. The coupling components were N,N-diethyl aniline, N,N-bis-β-hydroxyethyl aniline, N,N-bis-β-acetoxyethyl aniline, N,N-diethyl-m-toluidine, N,N-bis-β-hydroxyethyl-m-toluidine and N,N-bis-β-acetoxyethyl-m-toluidine. The structures of the synthesized dyes were confirmed by TLC, 1H NMR and elemental analysis. The spectroscopic properties of the dyes when dissolved in the organic solvents viz. ethyl acetate and methyl benzoate, were investigated. The absorption spectra of the dyes showed a bathochromic shift when the polarity of the solvents increased. In addition, the substituent groups on the dye structures influenced the spectroscopic properties of the dyes. The dyeing properties of the dyes on poly(ethylene terephthalate) and poly(lactic acid) fabrics were also studied. The dyes exhibited a slight difference in shade on the two polyester fabrics. Heat and light fastness properties of the dyed fabrics were also examined.

Synthesis and spectral properties of some azo disperse dyes containing a benzothiazole moiety

2013 ◽  
Vol 188 ◽  
pp. 173-177 ◽  
Author(s):  
E.O. Moradi Rufchahi ◽  
Hessamoddin Yousefi ◽  
Mojgan Mohammadinia
Keyword(s):  
Spectral Properties ◽  
Disperse Dyes ◽  
Azo Disperse Dyes

Vapour pressures and heats of sublimation of some azo disperse dyes

2008 ◽  
Vol 105 (3) ◽  
pp. 112-114 ◽  
Author(s):  
K Nishida ◽  
Y Ando ◽  
K Ohwada ◽  
T Mori ◽  
M Koide ◽  
...  
Keyword(s):  
Disperse Dyes ◽  
Azo Disperse Dyes

scholarly journals Synthetic utility of 5-amino-6-cyano-2-phenylthieno[2,3-d] oxazole

2005 ◽  
Vol 70 (11) ◽  
pp. 1249-1253 ◽  
Author(s):  
V.R. Kanetkar ◽  
R.R. Walavalkar
Keyword(s):  
Ir Spectroscopy ◽  
Absorption Spectra ◽  
Polyester Fabric ◽  
Disperse Dyes ◽  
Fastness Properties ◽  
Visible Absorption ◽  
Synthetic Utility ◽  
Azo Disperse Dyes

This paper describes the synthesis of 5-amino-6-cyano-2-phenylthieno[ 2,3-d]oxazole and its utilization for the preparation of a range of azo disperse dyes. These aryl azo disperse dyes were applied on polyester fabric and their fastness properties were evaluated. The dyes were characterized by NMR and IR spectroscopy. The visible absorption spectra of these dyes were Recorded.

scholarly journals Facile Synthesis of Novel, Structurally Diverse Azo Disperse Dyes by Employing Ugi Four-Component Reaction

2021 ◽  
Vol 41 (4) ◽  
pp. 1703
Author(s):  
Xiaoyan Guo ◽  
Shuaijun Fang ◽  
Hongfei Qian ◽  
Gaofeng Feng
Keyword(s):  
Disperse Dyes ◽  
Facile Synthesis ◽  
Azo Disperse Dyes

Synthesis of azo disperse dyes containing pyridine ring for dyeing polyester and polyacrylic fibres

2016 ◽  
Vol 45 (1) ◽  
pp. 10-17 ◽  
Author(s):  
A.A. Fadda ◽  
N.S. Abbas
Keyword(s):  
Pyridine Ring ◽  
Cycloaddition Reaction ◽  
Disperse Dyes ◽  
Ethyl Vinyl Ether ◽  
Spectroscopic Techniques ◽  
Ethyl Vinyl ◽  
Content Type ◽  
Dyeing Performance ◽  
Azo Disperse Dyes ◽  
Derivatives Of

Purpose – The purpose of this paper is to discuss the synthesis of new azo disperse dyes containing pyridine ring for dyeing acetate polyester and other fibres. Design/methodology/approach – Cycloaddition reaction of 3-formylchromone (Compound 1) with ethyl vinyl ether (Compound 2) afforded 3-ethoxy-4,4a-dihyro-3H,10H-pyrano[4,3-b]chromen-10-one (Compound 3). Reaction of 3 with aqueous ammonium sulphite in ethanol furnishes 3-(2-hydroxybenzoyl)pyridine (Compound 5). Compound 5 was fully characterised by spectroscopic techniques. Ten arylazo derivatives of Compound 6 have been prepared for use as dyestuffs. The effect of the nature and orientation of substituents in the diazonium component on the colour of azo dyes is discussed. Dyeing performance of the dyes on different fibres has also been assessed. Findings – Most of the dyes showed good affinity to polyester fibres. On the other hand, polyacrylic fibres were only stained to weak shades. Originality/value – No details regarding the synthesis and dyeing performance of such dyes are reported before in the literature.

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