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Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/19224
Title: C1-symmetric versus C2-symmetric ligands in enantioselective copper-bis(oxazoline)-catalyzed cyclopropanation reactions
Authors: Fraile, José M.; García, José I.; Gissibl, Anja; Mayoral, José A.; Pires, Elísabet; Reiser, Oliver; Roldán, Marta; Villalba, Isabel
Keywords: Asymmetric catalysis
Computational mechanistic models
Issue Date: 2-Aug-2007
Publisher: Wiley-Blackwell
Citation: Chemistry A European Journal 13(31): 8830-8839 (2007)
Abstract: A thorough experimental and theoretical study of the enantioselective cyclopropanation of alkenes catalyzed by chiral bis(oxazoline)- and azabis(oxazoline)-copper complexes, which comprise a new family of ligands that lack C2 symmetry, has been conducted. Surprisingly high enantioselectivities were observed with some of these ligands, which were rationalized on the basis of molecular modeling studies. The course of the asymmetric induction in connection with ligand symmetry and the implications for supported enantioselective catalysts are discussed.
Description: 10 pages, 9 figures, 3 tables, 2 schemes.
Publisher version (URL): http://dx.doi.org/10.1002/chem.200700681
URI: http://hdl.handle.net/10261/19224
ISSN: 0947-6539
DOI: 10.1002/chem.200700681
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