ChemInform Abstract: Catalytic Asymmetric Hydrosilylation of Ketones with New Chiral Ferrocenylphosphine-Imine Ligands.
Abstract
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ChemInform Abstract
The new chiral ferrocenylphosphine-imine ligands (IV) synthesized are found to be very effective for Rh-catalyzed asym. hydrosilylation of prochiral ketones with diphenylsilane to give optically active alcohols such as (VI) of up to 90% e.e. A slightly higher enantioselectivity is observed in reactions with the ligands (IVb) and (IVc) which are derived from aldehydes containing electron-withdrawing groups on the phenyl ring.
