Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/32469| Title: | Syntheses and dyeing performance of 1-arylazo- 3-(4-substituted benzamido)naphth-2-ols and 1-arylazonaphth-2-ol-3,6-disulphonamides |
| Authors: | Rangnekar, D W Mehta, J B |
| Keywords: | 1-Arylazonaphth-2-ol derivatives;Disperse dyes;Dyeing;Polyester fibre;Polyamide fibre |
| Issue Date: | Sep-1993 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 3-Aminonaphth-2-ol (II), prepared from naphth-2-ol-3-carboxylic acid (I), was condensed with 4-substituted benzoyl chlorides (IIIa-c) and the resulting compounds 3-(4-substituted benzamidoinaphth- 2-ols (IVa-c) were coupled with representative aryl diazonium salts (Va-c) to give 1-arylazo- 3-(4-substituted benzamido )naphth-2-ols (VIa-i). 1-AryIazonaphth-2-ol-3,6-disulphonic acids (IXa-c), obtained by coupling .naphth-2-ol-3,6-disulphonic acid (VIII) with aryl diazonium salts (VIIa- c), were converted to the corresponding 1-arylazonaphth-2-ol-3,6-disulphonyl chlorides (Xa-c)by treatment with thionyl chloride. The compounds Xa-c when reacted separately with piperidine, morpholine and aniline gave 1-arylazonaphth-2-ol-3,6-disulphonamides (XIa-i). The compounds VIa-i and XIa-i when applied on polyester and polyamide fibres as disperse dyes gave orange yellow to reddish violet shades with moderate to excellent pick-up, moderate light fastness and very good sublimation fastness. |
| Page(s): | 145-150 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.18(3) [September 1993] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 18(3) 145-150.pdf | 1.21 MB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.