Chiral Boron-Bridged Bisoxazolines: Readily Available Anionic Ligands for Asymmetric Catalysis
Clément Mazet, Valentin Köhler, Andreas Pfaltz*
*Department of Chemistry, University of Basel, St. Johanns Ring 19, 4056
Basel, Switzerland, Email: andreas.pfaltz
unibas.ch
C. Mazet, V. Koehler, A. Pfaltz, Angew. Chem., 2005, 117, 4966-4969.
DOI: 10.1002/ange.200501111 (free Supporting Information), DOI: 10.1002/anie.200501305 (International Edition)
Abstract
A new class of anionic, boron-bridged analogues of the box ligands was developed. These borabox ligands showed a considerable potential for asymmetric cyclopropanation and desymmetrizations of meso diols.
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Key Words
acylation, desymmetrization of diols, asymmetric catalysis, copper, diazo compounds, N ligands, cyclopropanation
ID: J06-Y2005-1070
