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Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/19224
Título

C1-symmetric versus C2-symmetric ligands in enantioselective copper-bis(oxazoline)-catalyzed cyclopropanation reactions

AutorFraile, José M. ; García, José I. ; Gissibl, Anja; Mayoral, José A. ; Pires, Elísabet; Reiser, Oliver; Roldán, Marta; Villalba, Isabel
Palabras claveAsymmetric catalysis
Bis(oxazolines)
Computational mechanistic models
Copper
Cyclopropanation
Fecha de publicación2-ago-2007
EditorWiley-Blackwell
CitaciónChemistry A European Journal 13(31): 8830-8839 (2007)
ResumenA 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.
Descripción10 pages, 9 figures, 3 tables, 2 schemes.
Versión del editorhttp://dx.doi.org/10.1002/chem.200700681
URIhttp://hdl.handle.net/10261/19224
DOI10.1002/chem.200700681
ISSN0947-6539
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