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  • Title: Direct asymmetric aldol-Tishchenko reaction of aliphatic ketones catalyzed by syn-aminoalcohol-Yb(III) complexes.
    Author: Mlynarski J, Jankowska J, Rakiel B.
    Journal: Chem Commun (Camb); 2005 Oct 14; (38):4854-6. PubMed ID: 16193137.
    Abstract:
    The asymmetric direct aldol condensation of aldehydes with ethyl- and propylketones is catalyzed by syn-alpha-aminoalcohol-Yb(OTf)3 complexes, yielding the anti-1,3-diol monoesters with high diastereocontrol and good enantioselectivity. Three adjacent stereogenic centers are created in a simultaneous aldol condensation and Evans-Tishchenko reduction in an acyclic system.
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