Chiral Thioimidazoline Ligands for Palladium-Catalyzed Asymmetric Allylation
- 1 July 1997
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1997 (7) , 783-785
- https://doi.org/10.1055/s-1997-5785
Abstract
Chiral thioarylimidazolines 1,2 were prepared as a new class of SN-hybrid ligands. Asymmetric allylic substitution of 1,3-diphenyl-2-propenyl pivalate 11 with dimethyl malonate in the presence of BSA-LiOAc has been successfully carried out with a chiral catalyst of a thioimidazoline 1-palladium complex in high enantioselectivities of up to 96% ee.Keywords
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