Ferrocene-based diphosphonites for asymmetrical catalysis
AssigneeStudiengesellschaft Kohle mbH
InventorsManfred T. Reetz, Andreas Gosberg
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Abstract
The present invention relates to novel chiral 1,1′-ferrocenylene diphosphonites and the synthesis thereof, in addition to complexes of said compounds with metals from groups VIIb, VIIIb and Ib of the Periodic Table and to the use thereof for enantioselective hydrogenation of olefins, ketones and imines, or enantioselective hydroboration and 1,4-addition to activated olefins.
Claims24
Chiral C2-symmetric diphosphonites comprising ferrocene as a backbone, characterized by containing either chiral C2-symmetric 1,2-diols with an aliphatic basic structure or axially chiral aromatic or heteroaromatic diols in a P/O heterocycle.
Chiral C2-symmetric diphosphonates comprising ferrocene as a backbone, characterized by containing axially chiral aromatic or heteroaromatic diols in a P/O heterocycle.
Dependencies are inferred from the claim text.