Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1347708 | Tetrahedron: Asymmetry | 2008 | 5 Pages |
Abstract
Two novel P,O-coordinating chiral phoshine-amide ligands with hydroxymethyl side chains 5a and 5b were prepared and tested in some benchmark Pd(0) catalysed asymmetric allylic alkylations. The conversions and enantioselectivities were generally good, with a highest conversion of 92% and a highest ee of 62% obtained using 1,3-diphenylpropenyl acetate as substrate. A number of palladium pre-catalysts were used, but it was [Pd(allyl)Cl]2 which gave the best results. Ligand 5b was seen to give better enantioselectivities.
Related Topics
Physical Sciences and Engineering
Chemistry
Inorganic Chemistry
Authors
Vanda Raquel Marinho, Ana Isabel Rodrigues, Anthony J. Burke,