The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 04, 2013
Filed:
May. 08, 2008
Albrecht Salzer, Aachen, DE;
Angelino Doppiu, Seligenstadt, DE;
Nadine Langenscheidt, Aachen, DE;
Andreas Rivas-nass, Schriesheim, DE;
Ralf Karch, Kleinostheim, DE;
Roland Winde, Frankfurt, DE;
Stefanie Mayrhofer, Bruchkoebel, DE;
Albrecht Salzer, Aachen, DE;
Angelino Doppiu, Seligenstadt, DE;
Nadine Langenscheidt, Aachen, DE;
Andreas Rivas-Nass, Schriesheim, DE;
Ralf Karch, Kleinostheim, DE;
Roland Winde, Frankfurt, DE;
Stefanie Mayrhofer, Bruchkoebel, DE;
Umicore AG & Co. KG, Hanau-Wolfgang, DE;
Abstract
The invention relates to ruthenium complexes with a chiral ferrocenyldiphosphine ligand, wherein the ruthenium has the oxidation state (+II) and the chiral ferrocenyldiphosphine ligand has bidentate P—P coordination to the ruthenium. The ruthenium complexes are cyclic and with the ferrocenyldiphosphine ligand have an at least eight-membered ring. The ferrocenyldiphosphine ligands are selected from the group consisting of Taniaphos, Taniaphos-OH and Walphos ligands. A process for preparing the Ru complexes is described. The Rn complexes are used as catalysts for homogeneous asymmetric catalysis for preparing organic compounds.