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http://nopr.niscpr.res.in/handle/123456789/32440| Title: | Synthesis of ethyl α-substituted-β-(2-methoxyquinoxalin-6-amino) acrylates and 3-methoxypyrido [3,2-f]quinoxalin-10(7H)-ones and their application on polyster fibres |
| Authors: | Rangnekar, D W Tagdiwala, P V |
| Keywords: | Ethyl α-substituted-β-(2-methoxyquinoxal-6-amino) acrylate;Fluorescent brightener;3-Methoxypyrido[3, 2-f]quinoxalin 10(7H)-one;Polyester fibre |
| Issue Date: | Mar-1993 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 6-Amino-2-methoxyquinoxaline (I) obtained from quinoxal-2-one by nitration, chlorination, methoxylation and reduction was condensed with conjugated enol ethers such as diethyl ethoxymethylenemalonic ester (IIa) and ethyl ethoxymethylene(cyano)acetate (IIb) to give ethyl α-substituted-β-(2-methoxy-quinoxalin-6amino) acrylates (III). The cyclization of III in refluxing dowtherm resulted in the formation of 3-methoxy-9-substituted pyrido(3,2-f)quinoxalin-10(7H)-ones (IV). The fluorescent properties of III and IV were studied. When applied on polyester fibres these compounds resulted in poor to moderate whitening effects. |
| Page(s): | 51-53 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.18(1) [March 1993] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 18(1) 51-53.pdf | 177.24 kB | Adobe PDF | View/Open |
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