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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. - PublicationMétadonnées seulementThe high stereoselectivity of the tandem sequence Diels-Alder reaction/Ireland-Claisen rearrangement starting from substituted O-(E)-buta-1,3-dienyl ketene acetals and cyclic dienophiles(2007)
;Soldermann, Nicolas ;Velker, Joerg ;Neels, Antonia; A new tandem reaction leads to bicyclic cyclohexene derivs., e. g. I, 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. [on SciFinder(R)] - 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.