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Beilstein J. Org. Chem. 2012, 8, 1778–1787, doi:10.3762/bjoc.8.203
Graphical Abstract
Figure 1: Chiral PPY catalysts.
Scheme 1: Asymmetric desymmetrization of 5 with catalyst 3.
Scheme 2: Preparation of a small library of chiral C2-symmetric PPY catalysts (reference, see [12]).
Scheme 3: Amplification of enantiomeric purity of the major enantiomer produced at the step of asymmetric des...
Scheme 4: Acylative kinetic resolution of racemic-6 with catalyst 12b.
Figure 2: A hypothetical model for the transition-state assembly of the asymmetric acylation of 5 promoted by...
Figure 3: An alternative model for the transition state assembly of the asymmetric acylation of 5 promoted by...