Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5278282 | Tetrahedron Letters | 2009 | 4 Pages |
Abstract
A concise synthesis of the polycycle 27, which incorporates the 5,5,7-tricyclic ring core of rameswaralide 1, using a biogenetically inspired acid-catalysed [4+3]-cycloaddition approach starting from the furanobutenolide 26 is described, namely, 26â28/29â27. Under thermal conditions, the same furanobutenolide 26 gives the alternative polycyclic compound 35, resulting from a [4+2]-cycloaddition involving the furan as dienophile.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
Gerald Pattenden, Johan M. Winne,