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Asymmetric Hetero Diels-Alder Reaction Catalyzed by Chiral Ytterbium(III) Phosphate{Yb[(<i>R</i>)-(-)-BNP]<sub>3</sub>}: Remarkable Ligand Effect on the Enantioselectivity
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2004
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Room TemperatureEngineeringChiral YtterbiumOrganic ChemistryOrganometallic CatalysisCatalysisEffective AdditiveChemistryStereoselective SynthesisAsymmetric CatalysisSynthetic ChemistryEnantioselective SynthesisBiomolecular EngineeringRemarkable Ligand Effect
2,6-Lutidine was found to be an effective additive for the chiral ytterbium(III) phosphate {Yb[(R)-(-)-BNP]3}-catalyzed asymmetric hetero Diels-Alder reaction thus achieving high enantioselectivity (up to 93% ee) at room temperature.