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Virtual Planar Chirality. A New Approach to Catalyst and Ligand Design
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1  Department of Chemistry, Cardiff University, PO Box 912, Cardiff, CF10 3TB, UK

Abstract: Attachment of a chiral imidazole or chiral oxazoline to either (h5-cyclopentadienyl)(h4-tetraphenylcyclobutadiene)cobalt or pentaphenylferrocene results in the heterocycle mimicking an environment of planar chirality. This chiral relay effect is demonstrated by both highly diastereoselective palladation and application of the oxazoline complexes as ligands in asymmetric catalysis.
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