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http://nopr.niscpr.res.in/handle/123456789/16170| Title: | Synthesis of some benzopyranoquinoline derivatives |
| Authors: | Mulwad, V V Mahaddalkar, B S |
| Issue Date: | Jan-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | 4-Chlorocoumarins on condensation with anthranilic acid afford 4-(2' -carboxyphenylamino )-2H-(1)- benzopyran-2-ones 1 which on cyclisation with polyphosphoric acid yield 7,12-dihydro-6H-[1]benzopyrano[4,3-b]quinoline-6,7-diones 2. Compounds 1 on treatment with phosphoryl chloride yield 7-chlorobenzopyrano[4,3-b]quinolin-6(H)-ones 3. These chloro compounds on further treatment with various aromatic amines yield 7-anilinobenzopyrano[4,3-b]quinolin-6(H)-ones 4. |
| Page(s): | 29-32 |
| Appears in Collections: | IJC-B Vol.38B(01) [January 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 38B(1) 29-32.pdf | 968.21 kB | Adobe PDF | View/Open |
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