The stereoselectivities of the title reactions have been investigated from 140-340°C, and relative activation parameters for & and tm product formation have been determined.
Intramolecular Diels−Alder Reactions of Ester-Linked 1,3,8-Nonatrienes
✍ Scribed by Cayzer, Tory N.; Paddon-Row, Michael N.; Moran, Damian; Payne, Alan D.; Sherburn, Michael S.; Turner, Peter
- Book ID
- 120354683
- Publisher
- American Chemical Society
- Year
- 2005
- Tongue
- English
- Weight
- 491 KB
- Volume
- 70
- Category
- Article
- ISSN
- 0022-3263
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📜 SIMILAR VOLUMES
Diels-Alder reaction of dienyl ff-methacrylthioimidates has been investigated under thermal or Lewis acid or protonic acid catalyzed conditions. The utility of the reaction is shown by desulfurative ring contraction of bicycle L4.4.0 1 to bicycle [ 4.3.0 I system.
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C5 position by a vinyl group were found to undergo competing tandem sigmatropic rearrangement/Diels-Alder cyclisation when heated under standard Diels-Alder cyclisation conditions. This rearrangement became the exclusive pathway when the reactions were performed in the presence of a Lewis acid.