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Stoeckli-Evans, Helen
Nom
Stoeckli-Evans, Helen
Affiliation principale
Email
helen.stoeckli-evans@unine.ch
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Voici les éléments 1 - 3 sur 3
- PublicationMétadonnées seulementThe novel sequence Diels-Alder reaction/Ireland-Claisen rearrangement applied to acyclic dienophiles: New insights into the selectivity of the Ireland-Claisen rearrangement(1999-1-12)
;Velker, Joerg ;Roblin, Jean Philippe ;Neels, Antonia ;Tesouro, Ana; ;Klaerner, Frank-Gerrit ;Gehrke, Jan-StefanThe new dienes 4a-d, 7 and 11 reacted in good yields with acyclic dienophiles like methyl acrylate and diethyl fumarate in the tandem process Diels-Alder reaction/Ireland-Claisen rearrangement. Analysis of the relative configuration of products 5, 6, 8-10 and 12 indicated that preference for the chair or boat transition state of the Ireland-Claisen rearrangement is strongly influenced by the relative configuration of the substituents of the cyclohexene ring. - PublicationAccès libreThe Novel Sequence Diels-Alder Reaction/Ireland-Claisen Rearrangement Applied to Acyclic Dienophiles: New Insights into the Selectivity of the Ireland-Claisen Rearrangement(1999)
;Velker, Jörg ;Roblin, Jean-Philippe ;Neels, Antonia ;Tesouro, Ana; ;Klaerner, Frank-Gerrit ;Gehrke, Jan-StefanThe new dienes 4a-d, 7 and 11 reacted in good yields with acyclic dienophiles like methyl acrylate and diethyl fumarate in the tandem process Diels-Alder reaction/Ireland-Claisen rearangement. Analysis of the relative configuration of products 5, 6, 8-10 and 12 indicated that preference for the chair or boat transition state of the Ireland-Claisen rearrangement is stronlgy influenced by the relative configuration of the substituents of the cyclohexene ring. - PublicationAccès libreThe High Stereoselectivity of the Tandem Sequence Diels-Alder Reaction/IrelandÂ-Claisen Rearrangement Starting from Substituted O-(E)-Buta-1,3-dienyl Ketene Acetals and Cyclic Dienophiles(2007)
;Soldermann, Nicolas ;Velker, Jörg ;Neels, Antonia; A new tandem reaction leads to bicyclic cyclohexene derivatives with complete control of the relative configuration of the four chiral centers formed. The high diastereoselectivity is the consequence of an endo-selective Diels-Alder reaction followed by an Ireland-Claisen rearrangement that proceeds via a boat-like transition state.