Patents by Inventor Gerlinde Mehler

Gerlinde Mehler 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).

  • Process for preparing aromatic and heteroaromatic amines
    Patent number: 9061963
    Abstract: A process is described for preparing aromatic and heteroaromatic amines of the general formula (I) Ar—NR1R2, in which an aromatic compound with the general formula (II) Ar—X is reacted in the presence of a catalyst with an amine of the general formula (III) H—NR1R2 and a base, wherein the catalyst is selected from transition metal complexes having one or more ligands with the general formula (IV).
    Type: Grant
    Filed: April 3, 2012
    Date of Patent: June 23, 2015
    Assignee: STUDIENGESELLSCHAFT KOHLE MBH
    Inventors: Manfred Reetz, Gerlinde Mehler
  • PROCESS FOR PREPARING AROMATIC AND HETEROAROMATIC AMINES
    Publication number: 20140213785
    Abstract: A process is described for preparing aromatic and heteroaromatic amines of the general formula (I) Ar—NR1R2, in which an aromatic compound with the general formula (II) Ar—X is reacted in the presence of a catalyst with an amine of the general formula (III) H—NR1R2 and a base, wherein the catalyst is selected from transition metal complexes having one or more ligands with the general formula (IV).
    Type: Application
    Filed: April 3, 2012
    Publication date: July 31, 2014
    Inventors: Manfred Reetz, Gerlinde Mehler
  • Mixtures of chiral monophosphorus compounds used as ligand systems for asymmetric transition metal catalysis
    Patent number: 7704912
    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.
    Type: Grant
    Filed: September 26, 2003
    Date of Patent: April 27, 2010
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Manfred T. Reetz, Thorsten Sell, Andreas Meiswinkel, Gerlinde Mehler
  • Chiral Phosphoramidites
    Publication number: 20080207942
    Abstract: Phosphoramidites with the general formulae I to VI are claimed together with the use of these compounds as ligands of transition metal compounds, in particular in transition metal catalysts, in the hydrogenation, transfer hydrogenation, hydroboration, hydrocyanation, 1,4-addition, hydroformylation, hydrosilylation, hydrovinylation, and Heck reactions of prochiral olefins, ketones, or ketimines.
    Type: Application
    Filed: September 12, 2006
    Publication date: August 28, 2008
    Applicant: Kaiser-Wilhelm-Platz 1
    Inventors: Manfred T. Reetz, Gerlinde Mehler
  • Chiral monophosphites as ligands for asymetrical synthesis
    Patent number: 7265237
    Abstract: Certain chiral monophosphites and their monothio derivatives are suitable as ligands in the asymmetrical transition-metal-catalyzed hydrogenation, hydroborination and hydrocyanation of prochiral olefins, ketones and imines.
    Type: Grant
    Filed: June 5, 2001
    Date of Patent: September 4, 2007
    Assignee: Studiengesellschaft Kohle mbH
    Inventors: Manfred T. Reetz, Gerlinde Mehler, Andreas Meiswinkel
  • CHIRAL DI- AND TRIPHOSPHITES
    Publication number: 20060224002
    Abstract: The invention claims chiral di- and triphosphites of general formulas (I) or (II), which are bridged by suitable groups. The claimed compounds can be used in asymmetric transition metal catalysis and as chiral transition metal catalysts.
    Type: Application
    Filed: May 11, 2006
    Publication date: October 5, 2006
    Applicant: STUDIENGESELLSCHAFT KOHLE MBH
    Inventors: Manfred Reetz, Andreas Meiswinkel, Gerlinde Mehler
  • Mixtures of chiral monophosphorus compounds used as ligand systems for asymmetric transition metal catalysis
    Publication number: 20060014981
    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.
    Type: Application
    Filed: September 26, 2003
    Publication date: January 19, 2006
    Applicant: Studiengesellschaft Kohle mbH
    Inventors: Manfred Reetz, Thorsten Sell, Andreas Meiswinkel, Gerlinde Mehler
  • Chiral monophosphites as ligands for assymetrical synthesis
    Publication number: 20030171608
    Abstract: Certain chiral monophosphites and their monothio derivatives are suitable as ligands in the asymmetrical transition-metal-catalyzed hydrogenation, hydroborination and hydrocyanation of prochiral olefins, ketones and imines.
    Type: Application
    Filed: December 4, 2002
    Publication date: September 11, 2003
    Inventors: Manfred T Reetz, Gerlinde Mehler, Andreas Meiswinkel