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
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Wörsdörfer et al. (1999) studied this question.