Diels-Alder Reactions of α,β-Unsaturated Thioesters and α,β-Unsaturated Selenoesters. -The regio-and exo/endo-selectivity of Diels-Alder reactions of thio-and selenoesters (II) with dienes is investigated. In general, thermal reactions show only low selectivities as expected. The selectivity improv
ChemInform Abstract: Use of Cyclic α,β-Unsaturated Trifluoromethyl Sulfones in Diels—Alder Reactions and Michael Additions.
✍ Scribed by Thierry Billard; Bernard R. Langlois; Michael Essers; Guenter Haufe
- Publisher
- John Wiley and Sons
- Year
- 2009
- Weight
- 28 KB
- Volume
- 40
- Category
- Article
- ISSN
- 0931-7597
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✦ Synopsis
Abstract
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Synthesis and Diels-Alder Reactions of α,β-Unsaturated . gamma.-Sultone. -An improved synthesis of the unsaturated sultone (III) and its use in Diels-Alder reactions is described. The sultone cycloadducts can be ring-opened with various nucleophiles such as alcohols and amines.