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1. IBiox[(-)-menthyl]: a sterically demanding chiral NHC ligand

Author

Wurtz, Sebastian, Lohre, Claudia, Frohlich, Roland, Bergander, Klaus, and Glorius, Frank

Subjects
Chirality -- Analysis, Methyl groups -- Structure, Methyl groups -- Chemical properties, Palladium catalysts -- Chemical properties, Chemistry
Abstract

The preparation and structural characterization of an exceedingly sterically demanding, rigid, and chiral NHC ligand, IBiox[(-)-menthyl], is described. The ability to use aryl chloride substrates in intramolecular palladium-catalyzed [alpha]-arylations has disclosed its unique reactivity and [C.sub.2]-symmetric IBiox[(-)-menthyl] has allowed the highly enantioselective formation of oxindoles with up to 99% ee.

Published
2009

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