Mixtures of chiral monophosphorus compounds used as ligand systems for asymmetric transition metal catalysis
AssigneeStudiengesellschaft Kohle mbH
InventorsManfred T. Reetz, Thorsten Sell, Andreas Meiswinkel, Gerlinde Mehler
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Abstract
The invention relates to certain chiral transition metal catalysts, to the metal of which at least two structurally different monophosphorus ligands are bonded, at least one of said monophosphorus ligands being chiral. Said chiral transition metal catalysts are suitable as catalysts for use in asymmetric transition metal-catalyzed reactions, providing better enantioselectivities than in cases where only one structurally defined ligand is used.
Claims15
A chiral transition metal catalyst comprising at least two constitutionally different monophosphorus ligands bonded to a transition metal, at least one monophosphorus ligand being chiral.
Dependencies are inferred from the claim text.