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http://nopr.niscpr.res.in/handle/123456789/21514| Title: | Synthesis and reactions of pyranoquinolines |
| Authors: | Mulwad, V V Dalvi, M B |
| Issue Date: | Feb-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 6-Aminocoumarins 1a-c are refluxed with ethyl benzoylacetate 2 in toluene to give benzoyl-N-(6'-coumarinyl)acetamides 3a-c, which on cyclisation with PPA afforded pyranoquinolines 4a-c. These are further converted into chloropyranoquinolines 5a-c using PCl5 and POCl3. These chloro derivatives are further treated separately, with sodium azide, anthranilic acid, o-phenylenediamine and benzoic hydrazide to obtain novel heterocyclic compounds, 9H-9-oxo-6-phenyl[10]pyrano[3 ,2-f]quinoline[1' ,5': 1,2] tetrazoles 6a-c, 10H, 15H-10, 15-dioxo-7-phenyl[11]pyrano[3,2-f]quinolino[1',2': 1,2] quinozolines 7a-c, 10H-10-oxo-7-phenyl[11]pyrano[3 ,2-f]quinolino[1 ',2': 1,2] benzimidazoles 8a-c and 9H-2,6-diphenyl-9- oxo [10]pyrano [3,2-f] quinolinof [1',2': 1,2]triazoles 9a-c, respectively. |
| Page(s): | 358-362 |
| ISSN: | 0975-0983(Online); 0376-4699(Print) |
| Appears in Collections: | IJC-B Vol.42B(02) [February 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 42B(2) 358-362.pdf | 1.04 MB | Adobe PDF | View/Open |
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