Download PDF
Synthesis 1999; 1999(4): 597-602
DOI: 10.1055/s-1999-3443
paper
© Georg Thieme Verlag, Rüdigerstr. 14, 70469 Stuttgart, Germany. All rights reserved. This journal, including all individual contributions and illustrations published therein, is legally protected by copyright for the duration of the copyright period. Any use, exploitation or commercialization outside the narrow limits set by copyright legislation, without the publisher's consent, is illegal and liable to criminal prosecution. This applies in particular to photostat reproduction, copying, cyclostyling, mimeographing or duplication of any kind, translating, preparation of microfilms, and electronic data processing and storage.

A New Planar Chiral Bipyridine Ligand

Udo Wörsdörfer* , Fritz Vögtle, Martin Nieger, Mirko Waletzke, Stefan Grimme, Frank Glorius, Andreas Pfaltz
  • *Kekulé-Institut für Organische Chemie und Biochemie, Universität Bonn, Gerhard-Domagk-Str. 1, 53121 Bonn, Germany; E-mail: voegtle@uni-bonn.de
Further Information

Publication History

Publication Date:
31 December 1999 (online)

  PDF Download  Permissions and Reprints All articles of this category

Combined methods of cyclophane and bipyridine synthesis open the way to the new planar-chiral 2,2′-bipyridine 1, whose CD spectrum is strongly dependent on metal salts. The absolute configuration of the chiral precursor 2 could be assigned by comparison of experimental and theoretical CD spectra. The usefulness of planar chirality in heterocyclic transition metal ligands is revealed in experiments towards stereoselective catalysis using 1.

[2,2]paracyclophanes - 2,2′-bipyridine - planar chirality - stereoselective catalysis - circular dichroism