Patents by Inventor Axel Monsees

Axel Monsees 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 bisphospholane ligands
    Publication number: 20070149781
    Abstract: The present invention is directed at a process for preparing enantiomerically enriched compounds of the general formula (I). Compounds of the type shown are employed in catalyst systems.
    Type: Application
    Filed: October 29, 2004
    Publication date: June 28, 2007
    Applicant: Degussa AG
    Inventors: Thomas Riermeier, Axel Monsees, Juan Almena Perea, Renat Kadyrov, Battsengel Gotov, Werner Zeiss, Iris Nagl, Armin Borner, Jens Holz, Karlheinz Drauz, Wilfried Meichelbock
  • BISPHOSPHINES AS BIDENTATE LIGANDS
    Publication number: 20070123733
    Abstract: The present invention relates to ligands of the general formula (I). In addition, a process for the production thereof and the use thereof are demonstrated.
    Type: Application
    Filed: December 12, 2006
    Publication date: May 31, 2007
    Applicant: DEGUSSA AG
    Inventors: Armin BOERNER, Jens Holz, Axel Monsees, Thomas Riermeier, Renat Kadyrov, Carsten Schneider, Uwe Dingerdissen, Karlheinz Drauz
  • Nitrogen-containing monodentate phosphines and their use in catalysis
    Publication number: 20070123707
    Abstract: The present invention relates to novel nitrogen—containing monodentate phosphane ligands of formula (I) and to their use in catalytic reactions, especially in the improvement of haloaromatic compounds.
    Type: Application
    Filed: May 3, 2004
    Publication date: May 31, 2007
    Applicant: Degussa AG
    Inventors: Alexander Zapf, Mark Sundermeier, Ralf Jackstell, Matthias Belller, Thomas Riermeier, Axel Monsees, Uwe Dingerdissen
  • Cycloaliphatic/aromatic diphosphines and use thereof in catalysis
    Patent number: 7081533
    Abstract: The present invention concerns novel unsymmetrical chiral diphosphines of a mixed aliphatic-aromatic type and processes for synthesizing them, complexes of these compounds and their use as catalysts.
    Type: Grant
    Filed: August 17, 2001
    Date of Patent: July 25, 2006
    Assignee: Degussa AG
    Inventors: Boris E Bosch, Axel Monsees, Uwe Dingerdissen, Paul Knochel, Eike Hupe
  • Chiral ligands, transition metal complexes thereof, and the catalytic use of the same
    Patent number: 7081544
    Abstract: The invention relates to novel chiral ligands of formula (I), the production thereof and the use of the same in catalytic reactions.
    Type: Grant
    Filed: June 18, 2002
    Date of Patent: July 25, 2006
    Assignee: Degussa AG
    Inventors: Matthias Beller, Kathrin Junge, Axel Monsees, Thomas Riermeier, Harald Trauthwein
  • Ferrocenyl ligands and method for the production of such ligands
    Patent number: 7015342
    Abstract: The invention relates to ferrocenyl ligands of general formula (II), the Sfc,S-enantiomer or the Rfc,R-enantiomer of the ferrocenyl ligands of formula (II) being enriched, and a method for producing such ligands.
    Type: Grant
    Filed: April 17, 2003
    Date of Patent: March 21, 2006
    Assignee: Degussa AG
    Inventors: Paul Knochel, Matthias Lotz, Axel Monsees, Thomas Riermeier, Renat Kadyrov, Juan Jose Almena Perea
  • Aromatic compounds containing nitrogen and p- functionalized amines, the production thereof and their use in catalytic reactions
    Publication number: 20060058178
    Abstract: The present invention is directed to P-functionalized amines of nitrogen-containing compounds and to catalysts prepared by combining these amines with transition metals. The catalysts are especially useful for refining haloaromatics.
    Type: Application
    Filed: November 21, 2002
    Publication date: March 16, 2006
    Inventors: Rhett Kempe, Thomas Schareina, Axel Monsees, Thomas Riermeier
  • Ferrocenyl ligands and the use thereof in catalysis
    Patent number: 7009065
    Abstract: The invention relates to bidentate organophosphorous ferrocenyl ligands containing ligands of formula (I), to their complex compounds and to their utilization in catalytic processes.
    Type: Grant
    Filed: March 10, 2003
    Date of Patent: March 7, 2006
    Assignee: Degussa AG
    Inventors: Paul Knochel, Matthias Lotz, Axel Monsees, Thomas Riermeier, Renat Kadyrov, Juan Jose Almena Perea
  • Ferrocenyl ligands and method for the production of such ligands
    Publication number: 20050240007
    Abstract: The invention relates to ferrocenyl ligands of general formula (II), the Sfc,S-enantiomer or the Rfc,R-enantiomer of the ferrocenyl ligands of formula (II) being enriched, and a method for producing such ligands.
    Type: Application
    Filed: April 17, 2003
    Publication date: October 27, 2005
    Inventors: Paul Knochel, Matthias Lotz, Axel Monsees, Thomas Riermeier, Renat Kadyrov, Juan Almena Perea
  • Ferrocenyl ligands and the use thereof in catalysis
    Publication number: 20050234253
    Abstract: The invention relates to bidentate organophosphorous ferrocenyl ligands containing ligands of formula (I), to their complex compounds and to their utilization in catalytic processes.
    Type: Application
    Filed: March 10, 2003
    Publication date: October 20, 2005
    Applicant: Degussa AG
    Inventors: Paul Knochel, Matthias Lotz, Axel Monsees, Thomas Riermeier, Renat Kadyrov, Juan Almena Perea
  • Bisphosphines as bidentate ligands
    Publication number: 20050209455
    Abstract: The present invention relates to ligands of the general formula (I). In addition, a process for the production thereof and the use thereof are demonstrated.
    Type: Application
    Filed: March 3, 2003
    Publication date: September 22, 2005
    Inventors: Armin Boerner, Jens Holz, Axel Monsees, Thomas Riermeier, Renat Kadyrov, Carsten Schneider, Uwe Dingerdissen, Karlheinz Drauz
  • Method for the reduction of binaphthyl derivatives
    Publication number: 20050171371
    Abstract: The present invention relates to a method for the preparation of H8-1,1?-bi-2-naphthyl derivatives of the formula (II) by reduction of the corresponding binaphthyl derivatives by hydrogen in the presence of a catalyst containing at least one metal selected from the group Pt, Ir, Os, Pd, Rh, Ru, Ni, Co and Fe applied to a solid support.
    Type: Application
    Filed: October 20, 2004
    Publication date: August 4, 2005
    Inventors: Armin Borner, Andrei Korostylev, Vitali Tararov, Axel Monsees
  • Novel chiral ligands, transition metal complexes thereof, and the catalytic use of the same
    Publication number: 20040249184
    Abstract: The invention relates to novel chiral ligands of formula (I), the production thereof and the use of the same in catalytic reactions.
    Type: Application
    Filed: April 8, 2004
    Publication date: December 9, 2004
    Inventors: Matthias Beller, Kathrin Junge, Axel Monsees, Thomas Riermeier, Harald Trauthwein
  • Cycloaliphatic/aromatic diphosphines and use thereof in catalysis
    Publication number: 20040019205
    Abstract: The present invention concerns novel unsymmetrical chiral diphosphines of a mixed aliphatic-aromatic type and processes for synthesizing them, complexes of these compounds with [lacuna] and their use as catalysts.
    Type: Application
    Filed: July 21, 2003
    Publication date: January 29, 2004
    Inventors: Boris E. Bosch, Axel Monsees, Uwe Dingerdissen, Paul Knochel, Eike Hupe
  • Bidentate organophosphorous ligands and their use
    Patent number: 6573389
    Abstract: The present invention relates to unsymmetric bidendate organophosphorus ligands of the formula (I) which have a modular structure and have a trivalent phosphine function and a second trivalent phosphorus group which is bound via a heteroatom to a chiral ligand framework, R1R2PZC*HR3XP(YR4)(YR5)  (I) where X is —O—, —S— or —NR6—, Y is a direct phosphorus-carbon bond, —O— or —NR7—, Z represents 1 to 6 carbon atoms which are joined by single or double bonds and link the phosphine unit PR1R2 to the carbon center C*, and P is trivalent phosphorus. The invention also relates to complexes comprising such a chiral ligand system of the formula (I).
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: June 3, 2003
    Assignee: Degussa AG
    Inventors: Boris E. Bosch, Harald Trauthwein, Thomas Riermeier, Uwe Dingerdissen, Axel Monsees
  • Polydentate asymmetric ligands based on binaphthyl
    Publication number: 20020188123
    Abstract: Novel polydentate asymmetric nitrogen-oxygen-containing binaphthyl derivatives of the formulae (I) and (II), and metal complexes of these compounds may be used as catalysts for enantioselective transformations.
    Type: Application
    Filed: May 2, 2002
    Publication date: December 12, 2002
    Applicant: DEGUSSA AG
    Inventors: Axel Monsees, Carsten A. Schneider, Thomas Riermeier, Uwe Dingerdissen
  • Bidentate phosphorus ligands and their use in catalysis
    Patent number: 6476246
    Abstract: Chiral, unsymmetrical bidentate organophosphorus ligands of the formula (I) are reacted with transition metal centers to form complexes with catalytic activity. The compounds contain chiral bicycloaliphatic skeletons. Synthesis of the bidentate ligands proceeds from norbornyl derivatives.
    Type: Grant
    Filed: October 24, 2001
    Date of Patent: November 5, 2002
    Assignee: Degussa AG
    Inventors: Axel Monsees, Uwe Dingerdissen, Sabine Laschat, Thorsten Sell
  • Bidentate phosphorus ligands and their use in catalysis
    Publication number: 20020095049
    Abstract: Chiral, unsymmetrical bidentate organophosphorus ligands of the formula (I) are reacted with transition metal centers to form complexes with catalytic activity. The compounds contain chiral bicycloaliphatic skeletons. Synthesis of the bidentate ligands proceeds from norbornyl derivatives.
    Type: Application
    Filed: October 24, 2001
    Publication date: July 18, 2002
    Applicant: DEGUSSA AG
    Inventors: Axel Monsees, Uwe Dingerdissen, Sabine Laschat, Thorsten Sell