Patents by Inventor Albrecht Salzer

Albrecht Salzer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Ruthenium complexes with (P—P)-coordinated ferrocenyldiphosphine ligands, process for preparing them and their use in homogeneous catalysis
    Patent number: 8455671
    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.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: June 4, 2013
    Assignee: Umicore AG & Co. KG
    Inventors: Albrecht Salzer, Angelino Doppiu, Nadine Langenscheidt, Andreas Rivas-Nass, Ralf Karch, Roland Winde, Stefanie Mayrhofer
  • Ruthenium Complexes with (P-P)-Coordinated Ferrocenyldiphosphine Ligands, Process for Preparing Them and Their Use in Homogeneous Catalysis
    Publication number: 20110021798
    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.
    Type: Application
    Filed: May 8, 2008
    Publication date: January 27, 2011
    Applicant: UMICORE AG & CO. KG
    Inventors: Albrecht Salzer, Angelino Doppiu, Nadine Langenscheidt, Andreas Rivas-Nass, Ralf Karch, Roland Winde, Stefanie Mayrhofer