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Título : C1-symmetric versus C2-symmetric ligands in enantioselective copper-bis(oxazoline)-catalyzed cyclopropanation reactions
Autor : Fraile, José M., García, José I., Gissibl, Anja, Mayoral, José A., Pires, Elísabet, Reiser, Oliver, Roldán, Marta, Villalba, Isabel
Palabras clave : Asymmetric catalysis
Computational mechanistic models
Fecha de publicación : 2-Aug-2007
Editor: Wiley-Blackwell
Resumen: 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.
Descripción : 10 pages, 9 figures, 3 tables, 2 schemes.
Versión del editor:
ISSN: 0947-6539
DOI: 10.1002/chem.200700681
Citación : Chemistry A European Journal 13(31): 8830-8839 (2007)
Appears in Collections:(ICMA) Artículos

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