Allylation of Ketones with a Ferrocene-Based Planar Chiral Lewis Acid

摘要

Owing to its rigid three-dimensional framework,ferrocene provides an excellent environment for chiral synthesis.However,most of the planar chiral ferrocene derivatives reported to date relate to the Lewis basic phosphine and amine ligands,which have found widespread use as nucleo-philic catalysts and as ligands in transition-metal-catalyzed chiral synthesis.