ePrints@IIScePrints@IISc Home | About | Browse | Latest Additions | Advanced Search | Contact | Help

An unusual chromone formation, and its rearrangement to a coumarin

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.

[img] PDF
an_unusual.pdf - Published Version
Restricted to Registered users only

Download (238kB) | Request a copy
Official URL: http://dx.doi.org/10.1016/S0040-4039(00)78221-9


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
Publication: Tetrahedron Letters
Publisher: Elsevier Science.
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.ac.in/id/eprint/36238

Actions (login required)

View Item View Item