Abstract
A novel class of bidentate chiral P,N donor ligands based on cinchona alkaloids is described. These ligands are easily synthesized in one-pot from commercially available enantiopure 1,2-diphenyl-1,2-ethanediol and cinchona alkaloids in two steps. Their application to the palladium(II)-catalyzed asymmetric allylic alkylation of 1,3-diphenyl-2-propenyl acetate gave the corresponding products in excellent yields and up to 94% ee. The effect of ligands, substrates, nucleophiles, and temperature on the reaction was also investigated.
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