Template-induced formation of heterobidentate ligands and their application in the asymmetric hydroformylation of styrene |
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Authors: | Kuil Mark Goudriaan P Elsbeth van Leeuwen Piet W N M Reek Joost N H |
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Affiliation: | Van't Hoff Institute for Molecular Sciences, University of Amsterdam, Nieuwe Achtergracht 166, 1018 WV Amsterdam, The Netherlands. |
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Abstract: | We report the template-induced formation of chelating heterobidentate ligands by the selective self-assembly of two different monodentate ligands on a rigid bis-zinc(II)-salphen template with two identical binding sites; these templated heterobidentate ligands induce much higher enantioselectivities (up to 72% ee) in the rhodium-catalyzed asymmetric hydroformylation of styrene than any of the corresponding homobidentate ligands or non-templated mixed ligand combinations (up to 13% ee). |
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