Patents by Inventor Markus Eckert

Markus Eckert 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: 6784308
    Abstract: The invention relates to a process for the preparation of aromatic nitriles form halogenoaromatics or aryl perfluorosulfonates and alkali metal cyanides in the presence of palladium catalysts, zinc, and polyethers.
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: August 31, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Markus Eckert
  • Publication number: 20040110990
    Abstract: The invention relates to a process for catalytically reducing substituted benzonitriles to substituted benzaldehydes in the presence of aqueous formic acid, of a nickel- and aluminium-containing catalyst and hydrogen.
    Type: Application
    Filed: August 14, 2003
    Publication date: June 10, 2004
    Inventors: Markus Eckert, Friedrich Durholz
  • Publication number: 20040030181
    Abstract: The present invention relates to a process for preparing stereoisomerically enriched 4-aryl-4-hydroxybutanoic acid derivatives by reducing 4-aryl-4-ketobutanoic acid derivatives in the presence of ruthenium-containing catalysts.
    Type: Application
    Filed: June 9, 2003
    Publication date: February 12, 2004
    Inventors: Hans-Christian Militzer, Boris Bosch, Markus Eckert, Benjamin Meseguer
  • Publication number: 20030225274
    Abstract: The present invention relates to a process for preparing stereoisomerically enriched 3-heteroaryl-3-hydroxycarboxylic esters by reducing 3-heteroaryl-3-oxocarboxylic esters in the presence of ruthenium-containing catalysts.
    Type: Application
    Filed: February 27, 2003
    Publication date: December 4, 2003
    Inventors: Boris Bosch, Markus Eckert, Hans-Christian Militzer, Claus Dreisbach
  • Publication number: 20030225153
    Abstract: The invention relates to a process for preparing enantiomerically enriched aryl-aminopropanols and to their use and also to intermediates.
    Type: Application
    Filed: March 18, 2003
    Publication date: December 4, 2003
    Inventors: Markus Eckert, Claus Dreisbach, Boris Bosch, Andreas Stolle
  • Publication number: 20030114707
    Abstract: The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a dipolar aprotic solvent.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 19, 2003
    Inventors: Florian Rampf, Markus Eckert
  • Publication number: 20030105353
    Abstract: The present invention relates to a process for the arylation of olefins by reaction of haloaromatics or arylsulfonates with olefins in the presence of a palladium catalyst, a bulky nitrogen base and a salt.
    Type: Application
    Filed: November 27, 2002
    Publication date: June 5, 2003
    Inventors: Florian Rampf, Markus Eckert
  • Publication number: 20030078436
    Abstract: The present invention relates to a process for the catalytic preparation of N-acylglycine derivatives. More particularly, the present invention relates to a process for the catalytic preparation of N-acylglycine derivatives by reacting an aldehyde with a carboxamide and carbon monoxide in the presence of a palladium compound, an ionic halide and an acid as catalyst.
    Type: Application
    Filed: October 25, 2002
    Publication date: April 24, 2003
    Inventors: Holger Geissler, Sandra Bogdanovic, Matthias Beller, Markus Eckert, Frank Vollmuller
  • Publication number: 20030055291
    Abstract: The invention relates to a process for the preparation of carbonyl compounds by the oxidation of alcohols in the presence of osmium compounds as catalysts in water or a solvent mixture containing water.
    Type: Application
    Filed: July 23, 2002
    Publication date: March 20, 2003
    Inventors: Markus Eckert, Hans-Christian Militzer, Matthias Beller, Christian Dobler, Gerald Mehltretter, Uta Sundermeier
  • Publication number: 20030050500
    Abstract: The present invention encompasses a process for preparing arylolefins by reacting one or more arylamines with one or more organic nitrites, in the presence of one or more olefins which bear at least one hydrogen atom on the double bond and in the presence of acid and in the presence of palladium or one or more palladium compounds.
    Type: Application
    Filed: August 12, 2002
    Publication date: March 13, 2003
    Inventors: Markus Eckert, Albert Schnatterer, Walter Lange
  • Publication number: 20030018209
    Abstract: The invention relates to a process for the preparation of aromatic nitrites from halogenoaromatics or aryl perfluorosulfonates and alkali metal cyanides in the presence of palladium catalysts, zinc, and polyethers.
    Type: Application
    Filed: July 8, 2002
    Publication date: January 23, 2003
    Inventor: Markus Eckert
  • Publication number: 20020115885
    Abstract: Polyhalogenated cinnamic acids and cinnamic acid derivatives are prepared by reacting diazonium salts accessible from polyhalogenated anilines with acrylic acid or acrylic acid derivatives in the presence of a homogeneous, palladium-containing catalyst at about −5 to about +100° C. Some of the cinnamic acids and cinnamic acid derivatives obtainable in this way are new. Cinnamic acids and cinnamic acid derivatives which can be prepared according to the invention can be used for the preparation of indanones which are precursors for agro- and pharmaceutical chemicals and for substances having liquid-crystalline properties.
    Type: Application
    Filed: February 12, 2002
    Publication date: August 22, 2002
    Inventors: Walter Lange, Joachim Komoschinski, Markus Eckert, Michael Dockner
  • Publication number: 20020077250
    Abstract: The present invention relates to an advantageous preparation of aryl compounds by cross-coupling reaction of a substituted aryl halide compound with a Grignard reagent in the presence of a nickel catalyst wherein the substituted aryl compounds and a novel nickel catalyst are initially placed in a reaction vessel and the Grignard reagent is metered in at the reaction temperature.
    Type: Application
    Filed: September 24, 2001
    Publication date: June 20, 2002
    Inventors: Markus Eckert, Guido Giffels, Hans-Christian Militzer, Thomas Prinz
  • Patent number: 6294681
    Abstract: The present invention provides a process for producing N-acyl-protected amino acids with the general formula I by amidocarbonylation whereby carbon monoxide, an amide/nitrile and an aldehyde, are reacted in the presence of a metal catalysts such as rhodium, iridium or ruthenium catalysts.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: September 25, 2001
    Assignee: Degussa-Huels AG
    Inventors: Karlheinz Drauz, Olaf Burkhardt, Matthias Beller, Markus Eckert, Wahed Moradi, Helfried Neumann
  • Publication number: 20010007911
    Abstract: The invention relates to a process for preparing N-acylglycine derivatives of the formula (III) 1
    Type: Application
    Filed: July 7, 1999
    Publication date: July 12, 2001
    Inventors: HOLGER GEISSLER, SANDRA BOGDANOVIC, MATTHIAS BELLER, MARKUS ECKERT, FRANK VOLLMULLER
  • Patent number: 6235910
    Abstract: A process for the preparation of compounds of the general formula (I) by reacting an aldehyde compound of the general formula (II) with a urea compound of the general formula (III) in the presence of carbon monoxide and a catalytically active metal compound. Compounds of the general formula (I) are important intermediates for the synthesis of &agr;-amino acids.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: May 22, 2001
    Assignee: Degussa-Huls AG
    Inventors: Matthias Beller, Markus Eckert, Wahed Moradi
  • Patent number: 6169201
    Abstract: Process for the preparation of N-acetyl protected amino acids of Formula I by amido carbonylation utilizing carbon monoxide, nitrile, and an aldehyde in the presence of a metal catalyst.
    Type: Grant
    Filed: May 13, 1999
    Date of Patent: January 2, 2001
    Assignee: Degussa-Huels AG
    Inventors: Matthias Beller, Markus Eckert, Wahed Moradi