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http://nopr.niscpr.res.in/handle/123456789/32526| Title: | Synthesis of pyrano[3', 2':5, 6]pyrido[1, 2-a]benzimidazoles and their application on polyester fibres as fluorescent disperse dyes |
| Authors: | Rangnekar, D W Rajadhyaksha, D D |
| Keywords: | Disperse dyes;Heterocyclic compounds;Polyester fibre;Pyrano[3', 2':5, 6]pyrido[1, 2-a]benzimidazoles |
| Issue Date: | Jun-1991 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 3-Methyl-1-oxo-1H, 5H-pyrido[1, 2-a]benzimidazole-4-carbonitrile was formylated to its 2-formyl derivative and condensed with different active methylene carboxylic acids and nitriles to get substituted pyrano[3', 2':5, 6]pyrido[1, 2-a]benzimidazoles. These brilliant dyes when applied on polyester fibres gave yellow shades with greenish fluorescence having moderate light fastness and good sublimation fastness. |
| Page(s): | 170-172 |
| ISSN: | 0975-1025 (Online); 0971-0426 (Print) |
| Appears in Collections: | IJFTR Vol.16(2) [June 1991] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJFTR 16(2) 170-172.pdf | 238.75 kB | Adobe PDF | View/Open |
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