Patents by Inventor Philippe Dupau

Philippe Dupau 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).

  • 1,4-hydrogenation of dienes with Ru complexes
    Patent number: 8003838
    Abstract: The present invention relates to the use of Ruthenium complexes having cyclopentadienyl derivatives and a diene as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of conjugated dienes into the corresponding “cis”-alkene as major product, i.e. wherein the two substituents in position 2,3 of the diene are in a cis configuration in the corresponding alkene.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: August 23, 2011
    Assignee: Firmenich SA
    Inventors: Philippe Dupau, Lucia Bonomo
  • Hydrogenation of esters with Ru/tetradentate ligands complexes
    Patent number: 7989665
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with tetradentate ligands having at least one amino or imino coordinating group and at least one phosphino coordinating group in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Grant
    Filed: September 13, 2007
    Date of Patent: August 2, 2011
    Assignee: Firmenich SA
    Inventors: Lionel Saudan, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • HYDROGENATION OF ESTERS WITH RU/BIDENTATE LIGANDS COMPLEXES
    Publication number: 20100280273
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with bidentate ligands, having one amino or imino coordinating group and one phosphino coordinating group, in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Application
    Filed: July 20, 2010
    Publication date: November 4, 2010
    Inventors: Lionel Saudan, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • Hydrogenation of esters with Ru/bidentate ligands complexes
    Patent number: 7763758
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with bidentate ligands, having one amino or imino coordinating group and one phosphino coordinating group, in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: July 27, 2010
    Assignee: Firmenich SA
    Inventors: Lionel Saudan, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • 1,4-hydrogenation of sorbol with Ru complexes
    Patent number: 7754929
    Abstract: The present invention relates to the use of Ru complexes, having a pentamethyl-cyclopentadienyl and a cyclooctadine as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of sorbol into the corresponding Z-alkene as major product.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: July 13, 2010
    Assignee: Innovaroma SA
    Inventors: Philippe Dupau, Lucia Bonomo
  • HYDROGENATION OF ESTERS WITH RU/BIDENTATE LIGANDS COMPLEXES
    Publication number: 20100130754
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with bidentate ligands, having one amino or imino coordinating group and one phosphino coordinating group, in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Application
    Filed: January 27, 2010
    Publication date: May 27, 2010
    Inventors: Lionel Saudan, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • HYDROGENATION OF ESTERS WITH RU/TETRADENTATE LIGANDS COMPLEXES
    Publication number: 20100125144
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with tetradentate ligands having at least one amino or imino coordinating group and at least one phosphino coordinating group in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Application
    Filed: January 27, 2010
    Publication date: May 20, 2010
    Inventors: LIONEL SAUDAN, PHILIPPE DUPAU, JEAN-JACQUES RIEDHAUSER, PATRICK WYSS
  • 1,4-HYDROGENATION OF SORBOL WITH RU COMPLEXES
    Publication number: 20100113844
    Abstract: The present invention relates to the use of Ru complexes, having a pentamethyl-cyclopentadienyl and a cyclooctadine as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of sorbol into the corresponding Z-alkene as major product.
    Type: Application
    Filed: April 2, 2008
    Publication date: May 6, 2010
    Inventors: Philippe Dupau, Lucia Bonomo
  • 1,4-HYDROGENATION OF DIENES WITH RU COMPLEXES
    Publication number: 20100099904
    Abstract: The present invention relates to the use of Ruthenium complexes having cyclopentadienyl derivatives and a diene as ligands, together with some acidic additives for improving the selectivity in the 1,4-hydrogenation of conjugated dienes into the corresponding “cis”-alkene as major product, i.e. wherein the two substituents in position 2,3 of the diene are in a cis configuration in the corresponding alkene.
    Type: Application
    Filed: April 2, 2008
    Publication date: April 22, 2010
    Inventors: Philippe Dupau, Lucia Bonomo
  • HYDROGENATION OF ESTERS WITH RU/TETRADENTATE LIGANDS COMPLEXES
    Publication number: 20080071098
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with tetradentate ligands having at least one amino or imino coordinating group and at least one phosphino coordinating group in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Application
    Filed: September 13, 2007
    Publication date: March 20, 2008
    Inventors: Lionel SAUDAN, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • HYDROGENATION OF ESTERS WITH RU/BIDENTATE LIGANDS COMPLEXES
    Publication number: 20080071121
    Abstract: The present invention relates to the field of catalytic hydrogenation and, more particularly, to the use of Ru complexes with bidentate ligands, having one amino or imino coordinating group and one phosphino coordinating group, in hydrogenation processes for the reduction of esters or lactones into the corresponding alcohol or diol respectively.
    Type: Application
    Filed: September 12, 2007
    Publication date: March 20, 2008
    Inventors: Lionel SAUDAN, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss