Please use this identifier to cite or link to this item:
http://nopr.niscpr.res.in/handle/123456789/32525| Title: | Synthesis of 7H-benzo[d,e]pyrazolo[5,1-a]isoquinolin-7-ones and their fluorescent properties |
| Authors: | Rangnekar, D W Shenoy, G R |
| Keywords: | 7H-benzo[d,e]pyrazolo[5, 1-a]isoquinolin-7-ones;Heterocyclic fused pyrazoles;Fluorescent brighteners;Polyester fibre |
| Issue Date: | Jun-1991 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 2-Amino-6-nitrobenz[d,e]isoquinoline-1,3(2H)-dione was condensed with acetone, acetylacetone and acetophenone to form the corresponding hydrazones which were cyclized to give 3-nitro-7H-benzo[d,e]pyrazolo[5,1-a]isoquinolin-7-ones. The formation of hydrazones and cyclization was also carried out in a single step using phase transfer catalysis. The nitro compounds were converted to acetamido derivatives by reductive acetylation. The fluorescent properties of acetamido derivatives were studied. The acetamido derivatives were applied on polyester fibres as fluorescent brighteners which showed good whitening effects on polyester fibres. |
| Page(s): | 166-169 |
| 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) 166-169.pdf | 245.02 kB | Adobe PDF | View/Open |
Items in NOPR are protected by copyright, with all rights reserved, unless otherwise indicated.