Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5229122 | Tetrahedron | 2007 | 9 Pages |
Abstract
Various approaches to the syntheses of 5-substituted-3-carbomethoxy-2,5-dihydrothiophenes and their product sulfolenes, required as synthetic precursors for tangutorine, are described. An efficient route to 3,5-disubstituted-4,5-dihydrothiophenes and hence 3,5-disubstituted-2-sulfolenes by radical chemistry is also described.
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Physical Sciences and Engineering
Chemistry
Organic Chemistry
Authors
James A. Wilkinson, Nicolas Ardes-Guisot, Sylvie Ducki, John Leonard,