Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/32597| Title: | Synthesis of 2-bisazo-3-substituted benzo[b]thiophenes and their application on polyester-fibres as disperse dyes |
| Authors: | Rangnekar, D W Jhaveri, P V |
| Keywords: | Benzo[b]thiophenes;Bisazo dyes;Disperse dyes;Polyester fibre |
| Issue Date: | Mar-1990 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Ethyl 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carboxylate and 2-amino-4,5,6,7-tetrahydrobenzo[b]thiophene-3-carbonitrile obtained by the condensation of cyclohexanone and sulphur with cyanoethylacetate and malononitrile respectively were diazotized and coupled with ɑ-naphthylamine and the resulting aminomonoazo compounds were further diazotized and coupled with various couplers to give 2-bisazo-3-substituted benzo[b]thiophenes. These bisazo dyes when applied on polyester as disperse dyes gave red brown and blue shades with poor to moderate light fastness and good sublimation fastness. |
| Page(s): | 26-29 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.15(1) [March 1990] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 15(1) 26-29.pdf | 814 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.