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http://nopr.niscpr.res.in/handle/123456789/16454| Title: | Synthesis of thienospiran derivatives and studies of regioselectivity in Friedel-Crafts acylation reaction |
| Authors: | Sen, P K Saha, Uttam Kumar Das (nee Deb), Tulika |
| Issue Date: | Jun-1999 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | Syntheses of several spiro[benzo[b]thiophen-6(5H), 1'-cycloalkan]-4(7H)-ones (Type A) and spiro[benzo[b]thiophen- 5, 1'-cycloalkan]-4(5H)-ones (Type B) and their 2-alkyl derivatives are described. The regioselectivity in the Friedel-Crafts acylation of thiophenes with anhydride of various unsymmetrically substituted succinic acid having substituent(s) at the same carbon atom in two different solvents namely dichloromethane and nitrobenzene is studied. A plausible explanation of such regioselective acylation of thiophenes has been incorporated. |
| Page(s): | 648-656 |
| Appears in Collections: | IJC-B Vol.38B(06) [June 1999] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCB 38B(6) 648-656.pdf | 2.55 MB | Adobe PDF | View/Open |
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