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http://nopr.niscpr.res.in/handle/123456789/32452| Title: | Synthesis of 2-methyl-6-(aryl/hetaryl-azo)thiazolo[4,5- b]quinoxalines and 7-( aryl-/hetaryl-azo)[ 1,4 ]dioxino[ 2,3-b]quinoxalines and their dyeing performance on polyester fibres |
| Authors: | Rangnekar, D W Sabnis, R W |
| Keywords: | Azo disperse dyes;Dyeing;Polyester fibre;Thiazolo[4,5-b]quinoxalines;[1,4]Dioxino-[2,3-b]quinoxalines |
| Issue Date: | Jun-1993 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 6-Amino-2 -methylthiazolo[4,5-b ]quinoxaline (lVa) and 7- amino[1 ,4] dioxino[2,3-b] quinoxaline (lVb), obtained by the cyclocondensation of 2,3-dichloro-6-nitroquinoxaline (I) with thioacetamide (IIa) and 1,2-ethanediol (IIb) respectively and subsequent reduction of resulting nitroderivatives (III), were diazotized and coupled with suitable hydroxy heterocyclic couplers (VIa-d) and N,N-dialkyl substituted arylamines (VIe-g) to give 2-methyl-6-(aryl-/hetaryl-azo)thiazolo[4,5-b]quinoxalines (VIIa-g) and 7-(aryl-/hetaryl-azo) [1,4]dioxino[2,3-b]quinoxalines (VIIIa-g) respectively. The compounds VIIa-g and VIIIa-g when applied on polyester fibres as disperse dyes gave yellow to red violet shades with good pick-up, moderate to very good light fastness and good to excellent sublimation fastness. |
| Page(s): | 97-100 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.18(2) [June 1993] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 18(2) 97-100.pdf | 252.13 kB | Adobe PDF | View/Open |
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