Majumdar, KC and Choudhury, PK and Nethaji, M (1994) An unusual chromone formation, and its rearrangement to a coumarin. In: Tetrahedron Letters, 35 (32). pp. 5927-5930.
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Official URL: http://dx.doi.org/10.1016/S0040-4039(00)78221-9
Abstract
3-(2'-cyclopentenyl)-4-hydroxy[1]Benzopyran-2-one(2) or its acetate (3) reacts with pyridine hydrotribromide to give the fused furo chromone (4) in 90% yield, which on refluxing in 50% H2SO4 furnishes the fused furo coumarin (5) in 87% yield.
| Item Type: | Journal Article |
|---|---|
| Additional Information: | Copyright of this article belongs to Elsevier Science. |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 26 Mar 2011 06:48 |
| Last Modified: | 26 Mar 2011 06:48 |
| URI: | http://eprints.iisc.ernet.in/id/eprint/36238 |
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