Patents by Inventor Guido Giffels

Guido Giffels 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 (S)-3-N-METHYLAMINO-1-(2-THIENYL)-1-PROPANOL
    Publication number: 20140357874
    Abstract: The present invention relates to a method for preparing (S)-3-N-methylamino-1-(2-thienyl)-1-propanol and salts thereof.
    Type: Application
    Filed: August 19, 2014
    Publication date: December 4, 2014
    Inventors: Michael KREIS, Antje STEINHAUS, Guido GIFFELS, Oliver KREBS
  • PROCESS FOR PREPARING (S)-3-N-METHYLAMINO-1-(2-THIENYL)-1-PROPANOL
    Publication number: 20140031564
    Abstract: The present invention relates to a method for preparing (S)-3-N-methylamino-1-(2-thienyl)-1-propanol and salts thereof.
    Type: Application
    Filed: August 26, 2011
    Publication date: January 30, 2014
    Applicant: SALTIGO GmbH
    Inventors: Michael Kreis, Antje Steinhaus, Guido Giffels, Oliver Krebs
  • Process for the preparation of aminoalkylamines
    Patent number: 8227641
    Abstract: Process for the preparation of polyfunctional amines of the formulae by hydrogenation of the associated nitriles of the formulae with hydrogen, where A is an aromatic or aliphatic compound from the group of unsubstituted or substituted phenylene or naphthylene, methylene, unsubstituted or substituted ethylene, propylene, unsubstituted or substituted straight-chain or branched butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene and B is a straight-chain or branched aliphatic carbon chain having 1 to 10 carbon atoms, and X can be missing or is a straight-chain or branched aliphatic carbon chain having 1 to 10 carbon atoms, wherein a melt, solution or suspension of the nitrile of formula (III) or (IV) is added over the course of the reaction time to a suspension or solution of a catalyst in a solvent which comprises ammonia and is stirred at a temperature range from 60 to 150° C. under hydrogen pressure.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: July 24, 2012
    Assignee: SALTIGO GmbH
    Inventors: Florian Rampf, Guido Giffels
  • PROCESS FOR THE PREPARATION OF AMINOALKYLAMINES
    Publication number: 20100145102
    Abstract: A process for the preparation of polyfunctional amines of the formulae by hydrogenation of the associated nitriles of the formulae with hydrogen, where A is an aromatic or aliphatic compound from the group of unsubstituted or substituted phenylene or naphthylene, methylene, unsubstituted or substituted ethylene, propylene, unsubstituted or substituted straight-chain or branched butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene and B is a straight-chain or branched aliphatic carbon chain having 1 to 10 carbon atoms, such as methylene, unsubstituted or substituted ethylene, propylene, unsubstituted or substituted straight-chain or branched butylene, pentylene, hexylene, heptylene, octylene, nonylene, decylene, where at least one CH2 unit must be in direct vicinity to the amino group, and X can be missing or is a straight-chain or branched aliphatic carbon chain having 1 to 10 carbon atoms, such as methylene, unsubstituted or substituted ethylene, propylene, unsubstituted or substit
    Type: Application
    Filed: December 12, 2007
    Publication date: June 10, 2010
    Applicant: SALTIGO GMBH
    Inventors: Florian Rampf, Guido Giffels
  • Process for preparing optionally substituted arylsulphonic anhydrides
    Patent number: 7329779
    Abstract: The present invention relates to a process for preparing optionally substituted arylsulphonic anhydrides of the general formula (I)
    Type: Grant
    Filed: March 29, 2006
    Date of Patent: February 12, 2008
    Assignee: LANXESS Deutschland GmbH
    Inventors: Björn Schlummer, Florian Rampf, Paul Naab, Guido Giffels, Matthias Gotta
  • Process for preparing optionally substituted arylsulphonic anhydrides
    Publication number: 20060229468
    Abstract: The present invention relates to a process for preparing optionally substituted arylsulphonic anhydrides of the general formula (I)
    Type: Application
    Filed: March 29, 2006
    Publication date: October 12, 2006
    Inventors: Bjorn Schlummer, Florian Rampf, Paul Naab, Guido Giffels, Matthias Gotta
  • Process and catalyst for preparing alcohols
    Patent number: 7119237
    Abstract: Alcohols prepared by reacting carboxylic acids and/or carboxylic esters with hydrogen in the presence of a special catalyst.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: October 10, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Prinz, Jürgen Kintrup, Andreas Schulze Tilling, Jörg-Dietrich Jentsch, Gerald John, Hans-Jürgen Grob, Guido Giffels
  • Biphenydiols
    Patent number: 6844462
    Abstract: The invention relates to the biphenyldiols of the formula (V) The corresponding racemic and enantiomerically pure triflate compounds thereof, where R1 and R2 are H, R3 is chlorine, and R4 is methoxy. In an alternate embodiment, R1 and R2 are hydrogen and R3 and R4 are C1-C4-alkoxy, fluorine, or chlorine.
    Type: Grant
    Filed: April 7, 2003
    Date of Patent: January 18, 2005
    Assignee: Bayer Aktiengesellschaft
    Inventors: Birgit Drieben-Hölscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Guido Giffels, Claus Dreisbach, Thomas Prinz
  • Fluorinated aromatics
    Publication number: 20040171864
    Abstract: The present invention relates to fluorinated aromatics, to a process for preparing them and also to the use of the fluorinated aromatics for preparing active ingredients, especially in medicaments and agrochemicals.
    Type: Application
    Filed: November 21, 2003
    Publication date: September 2, 2004
    Inventors: Karen Peilstocker, Albrecht Marhold, Axel Pleschke, Guido Giffels
  • Process and catalyst for preparing alcohols
    Publication number: 20030187309
    Abstract: Alcohols prepared by reacting carboxylic acids and/or carboxylic esters with hydrogen in the presence of a special catalyst.
    Type: Application
    Filed: February 19, 2003
    Publication date: October 2, 2003
    Inventors: Thomas Prinz, Jurgen Kintrup, Andreas Schulze Tilling, Jorg-Dietrich Jentsch, Gerald John, Hans-Jurgen Gross, Guido giffels
  • Diphosphines
    Publication number: 20030181736
    Abstract: The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) 1
    Type: Application
    Filed: April 7, 2003
    Publication date: September 25, 2003
    Inventors: Birgit Drieben-Holscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Guido Giffels, Claus Dreisbach, Thomas Prinz
  • Diphosphines
    Patent number: 6566298
    Abstract: The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) in which R is C6-C14-aryl or C4-C13-heteroaryl containing 1 to 3 heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur, wherein the aryl and heteroaryl radicals may optionally be substituted by halogen, C1-C6-alkyl, C1-C6-alkoxy, and/or trimethylsilyl, and R1 to R4, independently of one another, are each hydrogen, C1-C10-alkyl, C1-C10-alkoxy, F, Cl, or Br.
    Type: Grant
    Filed: August 15, 2002
    Date of Patent: May 20, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Birgit Driessen-Hölscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Guido Giffels, Claus Dreisbach, Thomas Prinz, Walter Lange
  • Diphosphines
    Publication number: 20030045713
    Abstract: The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) 1
    Type: Application
    Filed: August 15, 2002
    Publication date: March 6, 2003
    Inventors: Birgit Driessen-Holscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Guido Giffels, Claus Dreisbach, Thomas Prinz, Walter Lange
  • Process for the preparation of enantiomerically pure (5, 5?-dichloro-6,6?-dimethoxy-biphenyl-2,2?-diyl)- bis(diphenylphosphine oxides)
    Patent number: 6489513
    Abstract: The invention relates to the preparation of enantiomerically pure bis-diphenylphosphine oxides in a particularly advantageous manner by (1) reacting an aromatic bromine compound with a diphenylphosphinic chloride in a mixture of tetrahydrofuran and an aromatic hydrocarbon to give a diphenylphosphine oxide, which is isolated from a solution in an aromatic hydrocarbon by adding a saturated aliphatic hydrocarbon; (2) metalating the resulting diphenylphosphine oxide in the 6-position and reacting the metalated diphenylphosphine oxide with iodine at temperatures not less than −25° C.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: December 3, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Torsten Pohl, Thomas Prinz, Guido Giffels, Wolfram Sirges
  • Diphosphines
    Patent number: 6462200
    Abstract: The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) in which R is C6-C14-aryl or C4-C13-heteroaryl containing 1 to 3 heteroatoms selected from the group consisting of nitrogen, oxygen, and sulfur, wherein the aryl and heteroaryl radicals may optionally be substituted by halogen, C1-C6-alkyl, C1-C6-alkoxy, and/or trimethylsilyl, and R1 to R4, independently of one another, are each hydrogen, C1-C10-alkyl, C1-C10-alkoxy, F, Cl, or Br.
    Type: Grant
    Filed: September 7, 2001
    Date of Patent: October 8, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Birgit Driessen-Hölscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Guido Giffels, Claus Dreisbach, Thomas Prinz, Walter Lange
  • Process for preparing piperidines
    Patent number: 6458954
    Abstract: Piperidines are prepared in an advantageous manner by catalytic hydrogenation of activated pyridines in the presence of palladium catalysts if the palladium catalyst is palladium-on-carbon and the solvents are aromatic hydrocarbons.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: October 1, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Guido Giffels, Herbert Diehl, Georg Martin, Lutz Frohn, Erich Hammerschmidt
  • Process for preparing aryl compounds
    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
  • Process for the preparation of enantiomerically pure (5,5'-dichloro-6,6'-dimethoxy-biphenyl-2,2'-diyl)- bis(diphenylphosphine oxides)
    Publication number: 20020058814
    Abstract: The invention relates to the preparation of enantiomerically pure bis-diphenylphosphine oxides in a particularly advantageous manner by (1) reacting an aromatic bromine compound with a diphenylphosphinic chloride in a mixture of tetrahydrofuran and an aromatic hydrocarbon to give a diphenylphosphine oxide, which is isolated from a solution in an aromatic hydrocarbon by adding a saturated aliphatic hydrocarbon; (2) metalating the resulting diphenylphosphine oxide in the 6-position and reacting the metalated diphenylphosphine oxide with iodine at temperatures not less than −25° C.
    Type: Application
    Filed: November 13, 2001
    Publication date: May 16, 2002
    Inventors: Torsten Pohl, Thomas Prinz, Guido Giffels, Wolfram Sirges
  • Diphosphines
    Publication number: 20020055653
    Abstract: The invention relates to the preparation and use as catalysts of diphosphines of the formula (I) 1
    Type: Application
    Filed: September 7, 2001
    Publication date: May 9, 2002
    Inventors: Birgit Driessen-Holscher, Joachim Kralik, Inga Ritzkopf, Christian Steffens, Guido Giffels, Claus Dreisbach, Thomas Prinz, Walter Lange
  • Process for preparing piperidines
    Publication number: 20010056186
    Abstract: Piperidines are prepared in an advantageous manner by catalytic hydrogenation of activated pyridines in the presence of palladium catalysts if the palladium catalyst is palladium-on-carbon and the solvents are aromatic hydrocarbons.
    Type: Application
    Filed: April 30, 2001
    Publication date: December 27, 2001
    Inventors: Guido Giffels, Herbert Diehl, Georg Martin, Lutz Frohn, Erich Hammerschmidt