title: Confining phosphanes derived from cyclodextrins for efficient regio- and enantioselective hydroformylation.
abstract: Two confining phosphane ligands derived from either α- or β-cyclodextrin produce singly P(III) -ligated metal complexes with unusual coordination spheres. High-pressure NMR studies have revealed that rhodium hydride complexes of the same type are also formed under hydroformylation conditions. This unique feature strongly favors the formation of the branched aldehyde at the expense of the linear one with high enantioselectivity in the rhodium-catalyzed hydroformylation of styrene.
authors.affiliation: Laboratoire de Chimie Inorganique Moléculaire et Catalyse, Institut de Chimie UMR 7177 CNRS, Université de Strasbourg, 1 rue Blaise Pascal, 67008 Strasbourg Cedex (France).
authors.forename: Matthieu
authors.initials: M
authors.lastname: Jouffroy
authors.forename: Rafael
authors.initials: R
authors.lastname: Gramage-Doria
authors.forename: Dominique
authors.initials: D
authors.lastname: Armspach
authors.forename: David
authors.initials: D
authors.lastname: Sémeril
authors.forename: Werner
authors.initials: W
authors.lastname: Oberhauser
authors.forename: Dominique
authors.initials: D
authors.lastname: Matt
authors.forename: Loic
authors.initials: L
authors.lastname: Toupet
keywords: cyclodextrins; homogeneous catalysis; hydroformylation; phosphanes; rhodium