Abstract magnified image Chiral ferrocene‐derived phosphine‐thioether mixed donor ligands supported by heterocycles effected the palladium‐catalyzed enantioselective allylic alkylations with excellent yields and enantioselectivities (up to 96% ee). With cyclic and unsymmetrical allylic acetates as substrate, the corresponding alkylated products with enantioselectivities up to 87% ee were obtained. Based on X‐ray crystallographic and NMR studies, the origin of the observed enantioselectivities is discussed.
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Cheung et al. (2009) studied this question.
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