Asymmetric Hetero Diels-Alder Reaction Catalyzed by Chiral Ytterbium(III) Phosphate{Yb[(R)-(-)-BNP]₃}: Remarkable Ligand Effect on the Enantioselectivity

1 January 1997

journal article
letter
Published by Georg Thieme Verlag KG in Synlett

Vol. 1 (01) , 79-80
https://doi.org/10.1055/s-1997-718

Abstract

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.

Keywords

CHIRAL RARE EARTH LEWIS ACID
CATALYTIC ASYMMETRIC HETERO DIELS ALDER REACTION
TRIS[(R)-(-)-1
1'-BINAPHTHYL-2
2'-DIYLPHOSPHATO]YTTERBIUM(III) 2
6-LUTIDINE
DANISHEFSKY'S DIENE

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Asymmetric Hetero Diels-Alder Reaction Catalyzed by Chiral Ytterbium(III) Phosphate{Yb[(R)-(-)-BNP]3}: Remarkable Ligand Effect on the Enantioselectivity

Abstract

Keywords

Asymmetric Hetero Diels-Alder Reaction Catalyzed by Chiral Ytterbium(III) Phosphate{Yb[(R)-(-)-BNP]₃}: Remarkable Ligand Effect on the Enantioselectivity