Patents by Inventor Albrecht Marhold

Albrecht Marhold 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: 8227626
    Abstract: The invention relates to novel fluorinated achiral 1,3-benzodioxanes of the general formula (I-a) and (I-b) and to the preparation thereof.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: July 24, 2012
    Assignee: LANXESS Deutschland GmbH
    Inventors: Jens Peter Joschek, Albrecht Marhold, Axel Pleschke
  • Publication number: 20110112313
    Abstract: The invention relates to novel fluorinated achiral 1,3-benzodioxanes of the general formula (I-a) and (I-b) and to the preparation thereof.
    Type: Application
    Filed: January 18, 2011
    Publication date: May 12, 2011
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: Jens Peter Joschek, Albrecht Marhold, Axel Pleschke
  • Patent number: 7847096
    Abstract: The invention relates to novel aminophenylmorpholinone derivates (I) in which S represents an optionally substituted morpholinone radical, to a process for their preparation and to their use.
    Type: Grant
    Filed: October 1, 2005
    Date of Patent: December 7, 2010
    Assignee: Saltigo GmbH
    Inventors: Albrecht Marhold, Wolfgang Ebenbeck
  • Patent number: 7803941
    Abstract: The present invention relates to an improved process for preparing ring-fluorinated aromatics of the general formula (I) by a halogen exchange reaction (halex reaction) of a plurality of halogen substituents in one stage in the presence of a catalyst.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 28, 2010
    Assignee: LANXESS Deutschland GmbH
    Inventors: Axel Pleschke, Albrecht Marhold
  • Publication number: 20100036119
    Abstract: The present invention relates to ?,?-difluoroamines, fluorinating reagents comprising ?,?-difluoroamines and also processes for preparing ?,?-difluoroamines and fluorinating reagents comprising ?,?-difluoroamines.
    Type: Application
    Filed: October 16, 2009
    Publication date: February 11, 2010
    Applicant: LANXESS DEUTSCHLAND GMBH
    Inventors: WOLFGANG EBENBECK, PETRA HILGERS, ALBRECHT MARHOLD, JAN ALEXANDER BARTEN, ALEXANDER KOLOMEITSEV, GERD-VOLKER ROSCHENTHALER
  • Patent number: 7524976
    Abstract: The invention relates to a process for preparing difluorobenzo-1,3-dioxole-5-carboxylic acid and derivatives thereof, and to the use thereof for preparing medicaments and crop protection agents.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: April 28, 2009
    Assignee: LANXESS Deutschland GmbH
    Inventors: Axel Pleschke, Albrecht Marhold
  • Publication number: 20090018126
    Abstract: The invention relates to novel aminophenylmorpholinone derivates (I) in which S represents an optionally substituted morpholinone radical, to a process for their preparation and to their use.
    Type: Application
    Filed: October 1, 2005
    Publication date: January 15, 2009
    Inventors: Albrecht Marhold, Wolfgang Ebenbeck
  • Publication number: 20090012144
    Abstract: Novel optically active ?1-pyrrolines of the formula (I) in which R1, R2, R3, R4, and m are each as defined in the description, a plurality of the processes for preparing these substances and their use for controlling pests.
    Type: Application
    Filed: July 28, 2008
    Publication date: January 8, 2009
    Inventors: Andrew Plant, Thomas Geller, Bernd Gallenkamp, Rolf Grosser, Albrecht Marhold, Christoph Erdelen, Andreas Turberg, Olaf Hansen
  • Patent number: 7419936
    Abstract: Novel optically active ?1-pyrrolines of the formula (I) in which R1, R2, R3, R4, and m are each as defined in the description, a plurality of the processes for preparing these substances and their use for controlling pests.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: September 2, 2008
    Assignee: Bayer CropScience AG
    Inventors: Andrew Plant, Thomas Geller, Bernd Gallenkamp, Rolf Grosser, Albrecht Marhold, Christoph Erdelen, Andreas Turberg, Olaf Hansen
  • Publication number: 20080182986
    Abstract: The present invention relates to an improved process for preparing ring-fluorinated aromatics of the general formula (I) by a halogen exchange reaction (halex reaction) of a plurality of halogen substituents in one stage in the presence of a catalyst.
    Type: Application
    Filed: March 11, 2008
    Publication date: July 31, 2008
    Inventors: Axel Pleschke, Albrecht Marhold
  • Patent number: 7371861
    Abstract: The present invention relates to an improved process for preparing ring-fluorinated aromatics of the general formula (I) by a halogen exchange reaction (halex reaction) of a plurality of halogen substituents in one stage in the presence of a catalyst.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: May 13, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventors: Axel Pleschke, Albrecht Marhold
  • Patent number: 7358397
    Abstract: The present invention relates to halogenated 4-aminophenols and to halogenated 4-(phenyidiazenyl)phenols, to a process for their preparation and to the use of the halogenated 4-hydroxyphenols for preparing active ingredients, especially in pharmaceuticals and agrochemicals.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: April 15, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventors: Karen Peilstöcker, Albrecht Marhold, Jens-Peter Joschek
  • Publication number: 20070270618
    Abstract: This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein R are each, independently of one another, hydrogen, F, Cl, Br, I, CN, COOR2, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-perfluoroalkyl, C1-C4-perfluoroalkoxy, C1-C4-perfluoroalkylthio, C1-C4-polyfluoroalkyl, C1-C4-polyfluoroalkoxy, or C1-C4-polyfluoroalkylthio, R2 is C1-C4-alkyl, and n is an integer from 0 to 4. This invention further relates to the preparation of such compounds as well as to precursors and intermediates that can be used in their preparation.
    Type: Application
    Filed: July 30, 2007
    Publication date: November 22, 2007
    Inventors: Albrecht Marhold, Kathe Baumann
  • Patent number: 7268248
    Abstract: The present invention relates to 3-cyano-2,4,5-trifluorobenzoyl fluoride and to intermediates for its preparation and to the process for the preparation of 3-cyano-2,4,5-trifluoro-benzoyl fluoride, which starts from 5-fluoro-1,3-xylene (VIII); which is bichlorinated in the ring in the presence of a catalyst under ionic conditions to give 2,4-dichloro-5-fluoro-1,3-dimethylbenzene (VII). The latter is chlorinated in the side chains under free-radical conditions to give 2,4-dichloro-5-fluoro-3-dichloromethyl-1-trichloromethylbenzene (VI).
    Type: Grant
    Filed: December 31, 2003
    Date of Patent: September 11, 2007
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Peter Wolfrum
  • Patent number: 7268260
    Abstract: This invention relates to 1,2-di(4-hydroxyaryl)tetrafluoroethanes of the general formula (I) wherein R are each, independently of one another, hydrogen, F, Cl, Br, I, CN, COOR2, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-perfluoroalkyl, C1-C4-perfluoroalkoxy, C1-C4-perfluoroalkylthio, C1-C4-polyfluoroalkyl, C1-C4-polyfluoroalkoxy, or C1-C4-polyfluoroalkylthio, R2 is C1-C4-alkyl, and n is an integer from 0 to 4. This invention further relates to the preparation of such compounds as well as to precursors and intermediates that can be used in their preparation.
    Type: Grant
    Filed: August 3, 2006
    Date of Patent: September 11, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Albrecht Marhold, Käthe Baumann
  • Patent number: 7259267
    Abstract: The invention relates to difluorobenzo-1,3-dioxoles, to a process for their preparation, and to their use for preparing medicaments and crop protection agents.
    Type: Grant
    Filed: May 11, 2005
    Date of Patent: August 21, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Axel Pleschke, Albrecht Marhold
  • Patent number: 7250521
    Abstract: 2,5-Bisaryl-?1-pyrrolines of the formula (I) in which Ar1 and Ar2 are as defined in the description can be prepared by reacting aroylpyrrolidinones of the formula (II) in which Ar1 and Ar2 are as defined in the description with an acid, if appropriate in the presence of a diluent.
    Type: Grant
    Filed: April 8, 2002
    Date of Patent: July 31, 2007
    Inventors: Udo Kraatz, Andrew Plant, Ernst Kysela, Albrecht Marhold
  • Patent number: 7247733
    Abstract: The present invention relates to the preparation of nuclear-fluorinated aromatics by reacting, with a fluoride at 40 to 260° C., an aromatic compound substituted at the nucleus with halogen that is exchangeable for fluorine in the presence of at least one compound of the formula (I) where A, B, and An? have the meanings specified in the disclosure.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: July 24, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Marielouise Henrich, Albrecht Marhold, Alexander Kolomeitsev, Gerd Röschenthaler
  • Patent number: 7238722
    Abstract: The present invention relates to pyrazolyalkines and to their use, to a process for preparing them and also to intermediates.
    Type: Grant
    Filed: January 5, 2004
    Date of Patent: July 3, 2007
    Assignee: LANXESS Deutschland GmbH
    Inventors: Wolfgang Ebenbeck, Florian Rampf, Albrecht Marhold
  • Patent number: 7196226
    Abstract: The present invention relates to fluorination reagents comprising 1-fluoro-1-aminoolefins and also processes for preparing fluorination reagents comprising 1-fluoro-1-aminoolefins.
    Type: Grant
    Filed: December 16, 2004
    Date of Patent: March 27, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Wolfgang Ebenbeck, Albrecht Marhold