Fraile, José M. and Garcia, José I. and Gissibl, Anja and Mayoral, José A. and Pires, Elísabet and Reiser, Oliver (2007) C1-Symmetric Versus C2-Symmetric Ligands in Enantioselective Copper- Bis(oxazoline)-Catalyzed Cyclopropanation Reactions. Chemistry - A European Journal 13 (31), pp. 8830-8839.
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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.
|Institutions:||Chemistry and Pharmacy > Institut für Organische Chemie > Lehrstuhl Prof. Dr. Oliver Reiser|
|Keywords:||asymmetric catalysis; bis(oxazolines); computational mechanistic models; copper; cyclopropanation|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||18 Oct 2007|
|Last Modified:||05 Aug 2009 15:40|
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