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Chiragen ligands

Von Zelewsky has published many examples of the stereoselective synthesis of metal complexes using what he refers to as chiragen ligands. These are enantiopure natural compounds synthesized from the natural product (—)-a-pinene, which is combined with species such as bipyridine units to provide impressive control of metal-centered chirality.159-161 In this section, we will focus on the determination of absolute configurations in terms of stereospecific formation from different points of view in connection with absolute conformations in the ligands. [Pg.181]

Chirality in supramolecular coordination chemistry (Chapter 5). (a) Double-stranded helicates (b) chiragen ligands... [Pg.5]

Chiral recognition between CHIRAGEN ligands and the related assembled structures (from references ... [Pg.157]

Figure 10 Chiragen ligands (a) [4,5]-pineno-2,2 -bipyridine, one of the chiral bnilding blocks of the Chiragen ligands and (b) an example of a tetradentate Chiragen ligand. Figure 10 Chiragen ligands (a) [4,5]-pineno-2,2 -bipyridine, one of the chiral bnilding blocks of the Chiragen ligands and (b) an example of a tetradentate Chiragen ligand.
The tetradentate Chiragen ligands have made a significant contribution to the transfer of chirality in metallo-supramolecnlar synthesis. This is discussed below with a limited number of illustrative examples, and it has been substantially reviewed. ... [Pg.214]

Figure 24 Fonnation of a chiral trefoil knot using a Chiragen ligand. (Reproduced from Ref. 61. Wiley-VCH, 2004.)... Figure 24 Fonnation of a chiral trefoil knot using a Chiragen ligand. (Reproduced from Ref. 61. Wiley-VCH, 2004.)...
O. Mamula et al., Helicates of chiragen-type ligands and their aptitude for chiral selfrecognition. Chem. Eur. J. 11, 3049-3057 (2005)... [Pg.85]

CHlRAGEN-type ligands were used to produce self-assembled supramolecular coordination species with predetermined chirality. For instance 4,5-CHIRAGEN[m-xylyl]... [Pg.156]

Strategy for the construction of the metallated knot 5.72 and the trefoil knot 5.73 using the CHIRAGEN type ligand 50 (adapted with permission from reference ). [Pg.158]

Chiragen[X]y a New Ligand Family Predetermining Chirality at the M-Center. The two bidentate ligands in a complex M(L L)2 in OC-6 determine the A... [Pg.296]

See other pages where Chiragen ligands is mentioned: [Pg.274]    [Pg.278]    [Pg.279]    [Pg.619]    [Pg.167]    [Pg.56]    [Pg.156]    [Pg.157]    [Pg.216]    [Pg.216]    [Pg.274]    [Pg.278]    [Pg.279]    [Pg.619]    [Pg.167]    [Pg.56]    [Pg.156]    [Pg.157]    [Pg.216]    [Pg.216]    [Pg.172]    [Pg.363]    [Pg.29]    [Pg.156]    [Pg.156]    [Pg.157]    [Pg.322]    [Pg.299]    [Pg.299]    [Pg.212]    [Pg.212]   
See also in sourсe #XX -- [ Pg.278 , Pg.279 , Pg.280 ]



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Chiragen

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