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Chiral tetrathiafulvalene based phosphine- and thiomethyl-oxazoline ligands. Evaluation in palladium catalysed asymmetric allylic alkylation |
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| Authors: | Cé line Ré thoré ,Francine Agbossou-Niedercorn,Eva Guillamó n,Marc Fourmigué |
| Affiliation: | a Laboratoire de Chimie, Ingénierie Moléculaire et Matériaux d'Angers, UMR CNRS 6200, 2 Bd Lavoisier, 49045 Angers Cedex, France b Unité Catalyse et Chimie du Solide UMR CNRS 8181, ENSCL(CHIMIE), C7, BP 90108, 59652 Villeneuve d'Ascq Cedex, France c Departament de Ciències Experimentals, Universitat Jaume I, Campus de Riu Sec, PO Box 224, 12080 Castelló, Spain |
| Abstract: | New chiral redox active ligands based on ethylenedithio-tetrathiafulvalene (EDT-TTF) bearing racemic or optically pure oxazolines have been synthesised. These auxiliaries possess an additional functionality on the TTF unit, namely a thiomethyl residue or a diphenylphosphino moiety. All ligands have been tested in asymmetric allylic substitutions. The enantioselectivity reached is 85% ee. |
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