Journal
TETRAHEDRON LETTERS
Volume 44, Issue 32, Pages 6129-6132Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(03)01460-6
Keywords
asymmetric hetero-Diels-Alder reaction; chiral rare earth metal phosphate; Lewis acid catalyst; reusable catalyst
Categories
Ask authors/readers for more resources
Two types of novel rare earth (RE) complexes were synthesized and used as a chiral Lewis acid catalyst for the hetero-Diels-Alder reaction of carbonyl compounds with the Danishefsky's diene under homogeneous conditions. The Y[(R)-H-8-BNP](3) (3-Y)-catalyzed reaction of aromatic aldehydes and the Yb[(R)-BNP](3) (1-Yb)-catalyzed reaction of phenylglyoxylates afforded the corresponding cycloadducts with excellent optical purities (up to 99% ee) in high yields at room temperature. The successful recycling uses of the scandium catalyst (3-Sc) are also described. (C) 2003 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available