Patents by Inventor Jean-Jacques Riedhauser

Jean-Jacques Riedhauser 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).

  • Patent number: 10899694
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a process for the dehydrogenation of compound of formula (I) catalyzed by palladium (Pd0) in elemental metallic form.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: January 26, 2021
    Assignee: Firmenich SA
    Inventors: Denis Jacoby, Jean-Jacques Riedhauser, Philippe Miranda, Harvey Randall, Fabrice Keller
  • Publication number: 20190345088
    Abstract: The present invention relates to the field of organic synthesis and more specifically it concerns a process for the dehydrogenation of compound of formula (I) catalyzed by palladium (Pd0) in elemental metallic form.
    Type: Application
    Filed: June 26, 2017
    Publication date: November 14, 2019
    Applicant: Firmenich SA
    Inventors: Denis JACOBY, Jean-Jacques RIEDHAUSER, Philippe MIRANDA, Harvey RANDALL, Fabrice KELLER
  • Patent number: 9381507
    Abstract: The present invention concerns a process for the preparation with high selectivity of a compound of formula (I) by isomerization at room temperature of compound of formula (II) in the presence of a complex of formula [Ru(dienyl)2H]X.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: July 5, 2016
    Assignee: Firmenich SA
    Inventors: Jean-Jacques Riedhauser, Oliver Knopff, Luigi Marinoni
  • Patent number: 9376365
    Abstract: The present invention concerns a process of carbonylation of poly-unsaturated diene with high selectivity for the preparation of a ?,?-unsaturated carboxylic acid or ester in the presence of water or alcohol and catalyzed by [PdCl2P2] complex wherein P2 is two mono or one bidentate phosphine ligand.
    Type: Grant
    Filed: November 6, 2013
    Date of Patent: June 28, 2016
    Assignee: Firmenich SA
    Inventors: Jean-Jacques Riedhauser, Oliver Knopff
  • Publication number: 20150353463
    Abstract: The present invention concerns a process for the preparation with high selectivity of a compound of formula (I) by isomerization at room temperature of compound of formula (II) in the presence of a complex of formula [Ru(dienyl)2H]X.
    Type: Application
    Filed: January 21, 2014
    Publication date: December 10, 2015
    Applicant: Firmenich SA
    Inventors: Jean-Jacques RIEDHAUSER, Oliver KNOPFF, Luigi MARINONI
  • Publication number: 20150299085
    Abstract: The present invention concerns a process of carbonylation of poly-unsaturated diene with high selectivity for the preparation of a ?,?-unsaturated carboxylic acid or ester in the presence of water or alcohol and catalyzed by [PdCl2P2] complex wherein P2 is two mono or one bidendate phosphine ligand.
    Type: Application
    Filed: November 6, 2013
    Publication date: October 22, 2015
    Applicant: FIRMENICH SA
    Inventors: Jean-Jacques RIEDHAUSER, Oliver KNOPFF
  • Patent number: 8692022
    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: July 20, 2010
    Date of Patent: April 8, 2014
    Assignee: Firmenich SA
    Inventors: Lionel Saudan, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • Patent number: 8124816
    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: January 27, 2010
    Date of Patent: February 28, 2012
    Assignee: Firmenich SA
    Inventors: Lionel Saudan, Philippe Dupau, Jean-Jacques Riedhauser, Patrick Wyss
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • Patent number: 5728866
    Abstract: A method for preparing 3-oxo-2-pentyl-1-cyclopentaneacetic acid or methyl 3-oxo-2-pentyl-1-cyclopentaneacetate, essentially in the form of the (+)-(1R)-cis isomer thereof. The method includes the steps of(a) catalytically hydrogenating a compound of the formula (I), ##STR1## wherein M is a hydrogen atom, an alkali metal or alkaline earth metal atom, or a group NR.sub.4, where R is a hydrogen or a lower alkyl radical, in a suitable solvent and in the presence of a catalyst consisting of an Ru(II) complex comprising chiral ligands that contain a 2,2'-bis(diphenylphosphino)-1,1'-dinaphthyl (BINAP) radical or a 1,2-bis(2,5-dialkylphospholano)benzyl (DuPHOS) radical, wherein the alkyl is a C.sub.2 or C.sub.3 radical, to give a compound of formula (II), ##STR2## wherein M has the meaning given above, essentially in the form of the (+)-(1R)-cis isomer thereof;(b) if required, acidifying, in a per se known manner, the compound of formula (II), wherein M is an alkali metal or alkaline earth metal atom, or a group N.
    Type: Grant
    Filed: February 7, 1996
    Date of Patent: March 17, 1998
    Assignee: Firmenich SA
    Inventors: Valentin Rautenstrauch, Jean-Jacques Riedhauser