Patents by Inventor Matthias Gotta

Matthias Gotta 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: 9309188
    Abstract: What is described is a process for preparing organic compounds of the general formula (I) R—R???(I) by converting a corresponding compound of the general formula (II) R—X??(II) in which X is fluorine, chlorine, bromine or iodine to an organomagnesium compound of the general formula (III) [M+]n[RmMgXkY1]??(III) wherein compounds of the formula (III) are reacted with a compound of the general formula (IV) characterized in that the reaction of (III) with (IV) is performed in the presence of a) catalytic amounts of an iron compound, based on the compound of the general formula (II), and optionally in the presence of b) a nitrogen-, oxygen- and/or phosphorus-containing additive in a catalytic or stoichiometric amount, based on the compound of the general formula (II).
    Type: Grant
    Filed: February 1, 2011
    Date of Patent: April 12, 2016
    Assignee: Saitigo GmbH
    Inventors: Matthias Gotta, Bernd Wilhelm Lehnemann, Waldemar Maximilian Czaplik, Matthias Mayer, Axel Jacobi Von Wangelin
  • Patent number: 9024045
    Abstract: A process is provided which allows the synthesis of a large number of styrene derivatives with formation of C—C bonds, with use being possible of economically advantageous substrates, readily available carbon nucleophiles, and both inexpensive and environmentally unproblematic catalyst systems, permitting reaction under mild conditions and a high compatibility with functional groups on the reactants involved.
    Type: Grant
    Filed: May 31, 2013
    Date of Patent: May 5, 2015
    Assignee: Saltigo GmbH
    Inventors: Matthias Gotta, Bernd Wilhelm Lehnemann, Axel Von Wangelin Jacobi, Samet Guelak
  • Publication number: 20130324745
    Abstract: A process is provided which allows the synthesis of a large number of styrene derivatives with formation of C—C bonds, with use being possible of economically advantageous substrates, readily available carbon nucleophiles, and both inexpensive and environmentally unproblematic catalyst systems, permitting reaction under mild conditions and a high compatibility with functional groups on the reactants involved.
    Type: Application
    Filed: May 31, 2013
    Publication date: December 5, 2013
    Inventors: Matthias GOTTA, Bernd Wilhelm LEHNEMANN, Axel VON WANGELIN JACOBI, Samet GUELAK
  • Patent number: 8530666
    Abstract: The present invention relates to a process for the production of trifluoromethylated unsubstituted or substituted aryl or heteroaryl compounds which comprises reacting an unsubstituted or substituted aryl or heteroaryl halide with a trifluoroacetate of formula (I) or (II), wherein R1 is hydrogen or a C1-C5 alkyl group and M an alkali metal or an ammonium ion, in the presence of and an anorganic halogenide salt or a trifluoroacetacid salt as activator compound and a catalytic combination of a copper salt with a monodentate, bidentate or tridentate aromatic or aliphatic amine or pyridine ligand.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: September 10, 2013
    Assignee: SALTIGO GmbH
    Inventors: Alain Cotté, Matthias Gotta, Matthias Beller, Thomas Schareina, Alexander Zapf, Xiao-Feng Wu
  • Publication number: 20130184485
    Abstract: What is described is a process for preparing organic compounds of the general formula (I) R—R???(I) by converting a corresponding compound of the general formula (II) R—X ??(II) in which X is fluorine, chlorine, bromine or iodine to an organomagnesium compound of the general formula (III) [M+]n[RmMgXkY1]??(III) wherein compounds of the formula (III) are reacted with a compound of the general formula (IV) characterized in that the reaction of (III) with (IV) is performed in the presence of a) catalytic amounts of an iron compound, based on the compound of the general formula (II), and optionally in the presence of b) a nitrogen-, oxygen- and/or phosphorus-containing additive in a catalytic or stoichiometric amount, based on the compound of the general formula (II).
    Type: Application
    Filed: February 1, 2011
    Publication date: July 18, 2013
    Applicant: SALTIGO GMBH
    Inventors: Matthias Gotta, Bernd Wilhelm Lehnemann, Waldemar Maximilian Czaplik, Matthias Mayer, Axel Jacobi Von Wangelin
  • Patent number: 8304550
    Abstract: Described is a process for preparing diaryl ethers of the formula (I) Ar—O—Ar???(I) In which Ar is an aryl or substituted aryl group and Ar? is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group, by reacting an aryl of formula (II) or a aryloxy salt of formula (III) Ar—OH??(II) Ar—OR??(III) In which Ar has the same meaning as in formula (I) and R is an alkali metal, with an aryl or heteroaryl bromide of formula (IV) Ar?—Br??(IV) In which Ar? has the same meaning as in formula (I), characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.
    Type: Grant
    Filed: November 21, 2008
    Date of Patent: November 6, 2012
    Assignee: Saltigo GmbH
    Inventors: Alain Cotte, Nikolaus Muller, Matthias Gotta, Matthias Beller, Thomas Schareina, Alexander Zapf
  • Publication number: 20120245360
    Abstract: The present invention relates to a process for the production of trifluoromethylated unsubstituted or substituted aryl or heteroaryl compounds which comprises reacting an unsubstituted or substituted aryl or heteroaryl halide with a trifluoroacetate of formula (I) or (II), wherein R1 is hydrogen or a C1-C5 alkyl group and M an alkali metal or an ammonium ion, in the presence of and an anorganic halogenide salt or a trifluoroacetacid salt as activator compound and a catalytic combination of a copper salt with a monodentate, bidentate or tridentate aromatic or aliphatic amine or pyridine ligand.
    Type: Application
    Filed: October 26, 2011
    Publication date: September 27, 2012
    Applicant: SALTIGO GMBH
    Inventors: Alain Cotté, Matthias Gotta, Matthias Beller, Thomas Schareina, Alexander Zapf, Xiao-feng Wu
  • Publication number: 20120046471
    Abstract: This invention relates to a process for preparing functionalized aryl, heteroaryl, cycloalkenyl, or alkenyl compounds, by a transition-metal-catalyzed cross-coupling reaction of a substituted or unsubstituted aryl-X, heteroaryl-X, cycloalkenyl-X or alkenyl-X compound with an alkyl, alkenyl, cycloalkyl or cycloalkenyl halide, where X is a halide, diazonium, tosylate (p-toluenesulphonate), mesylate (methanesulphonate) or triflate (trifluoromethanesulphonate) leaving group.
    Type: Application
    Filed: September 14, 2011
    Publication date: February 23, 2012
    Applicant: SALTIGO GMBH
    Inventors: Mark Sundermeier, Matthias Gotta, Axel Jacobi von Wangelin, Waldermar Maximilian Czaplik
  • Patent number: 8030520
    Abstract: This invention relates to a process for preparing functionalized aryl, heteroaryl, cycloalkenyl, or alkenyl compounds, by a transition-metal-catalyzed cross-coupling reaction of a substituted or unsubstituted aryl-X, heteroaryl-X, cycloalkenyl-X or alkenyl-X compound with an alkyl, alkenyl, cycloalkyl or cycloalkenyl halide, where X is a halide, diazonium, tosylate (p-toluenesulphonate), mesylate (methanesulphonate) or triflate (trifluoromethanesulphonate) leaving group.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: October 4, 2011
    Assignee: Saltigo GmbH
    Inventors: Mark Sundermeier, Matthias Gotta, Axel Jacobi von Wangelin, Waldemar Maximilian Czaplik
  • Patent number: 8022255
    Abstract: A process for preparing ketones of the general formula (III) where R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, and R1 is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, by reacting alpha-oxo carboxylates of the general formula (I) wherein n and m is a number in the range from 1 to 6, M(m+) is a cation, and R has the meaning indicated for formula (III), with aryl bromides of the general formula (II) R1—Br??(II) where R1 has the meaning indicated for formula (III), in the presence of two transition metals or compounds thereof as catalyst, is described.
    Type: Grant
    Filed: February 19, 2009
    Date of Patent: September 20, 2011
    Assignee: SALTIGO GmbH
    Inventors: Alain Cotte, Matthias Gotta, Lukas Goossen, Felix Rudolphi, Christoph Oppel, Nuria Rodriguez Garrido
  • Publication number: 20100331570
    Abstract: The aim of the invention is to provide a widely applicable method for the nitration of substituted benzenes.
    Type: Application
    Filed: February 21, 2008
    Publication date: December 30, 2010
    Applicant: SALTIGO GMBH
    Inventors: Reinhard Langer, Matthias Gotta, Wolfram Kissener, Bettina Holzer
  • Publication number: 20090247764
    Abstract: A process for preparing organic compounds of the general formula (I) R—R???(I), where R is a substituted or unsubstituted aromatic, heteroaromatic, cycloalkenylic or alkenylic radical and R? is a substituted or unsubstituted alkylic, alkenylic, cycloalkylic or cycloalkenylic radical, by reacting a corresponding compound of the general formula (II) R—X??(II), where X is chlorine, bromine, iodine, diazonium, mesylate (methanesulphonate), tosylate (p-toluenesulphonate) or triflate (trifluorosutphonate) and R is as defined for formula (I), with a corresponding compound of the general formula (III) R?—Y??(III), where Y is chlorine, bromine or iodine and R? is as defined for formula (I), wherein the reaction is carried out in the presence of a) stoichiometric amounts of elemental magnesium, based on the compound of the general formula (II), and b) catalytic amounts of a transition metal compound, based on the compound of the general formula (II), and, if appropriate, c) in the presence of a
    Type: Application
    Filed: March 20, 2009
    Publication date: October 1, 2009
    Applicant: SALTIGO GMBH
    Inventors: Mark Sundermeier, Matthias Gotta, Axel Jacobi von Wangelin, Waldermar Maximilian Czaplik
  • Publication number: 20090221832
    Abstract: A process for preparing ketones of the general formula (III) where R is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted alkyl radical or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, and R1 is an optionally substituted carbocyclic aromatic radical having 6 to 24 carbon atoms or an optionally substituted heteroaromatic radical having 5 to 24 carbon atoms, by reacting alpha-oxo carboxylates of the general formula (I) wherein n and m is a number in the range from 1 to 6, M(m+) is a cation, and R has the meaning indicated for formula (III), with aryl bromides of the general formula (II) R1—Br ??(II) where R1 has the meaning indicated for formula (III), in the presence of two transition metals or compounds thereof as catalyst, is described.
    Type: Application
    Filed: February 19, 2009
    Publication date: September 3, 2009
    Applicant: SALTIGO GMBH
    Inventors: Alain Cotte, Matthias Gotta, Lukas Goossen, Felix Rudolphi, Christoph Oppel, Nuria Rodriguez Garrido
  • Publication number: 20090143594
    Abstract: Described is a process for preparing diaryl ethers of the formula (I) Ar—O—Ar???(I) In which Ar is an aryl or substituted aryl group and Ar? is an aryl, substituted aryl, heteroaryl or substituted heteroaryl group, by reacting an aryl of formula (II) or a aryloxy salt of formula (III) Ar—OH ??(II) Ar—OR ??(III) In which Ar has the same meaning as in formula (I) and R is an alkali metal, with an aryl or heteroaryl bromide of formula (IV) Ar?—Br ??(IV) In which Ar? has the same meaning as in formula (I), characterized in that the reaction is carried out in the presence of a copper(I)salt and a 1-substituted imidazole as catalyst system.
    Type: Application
    Filed: November 21, 2008
    Publication date: June 4, 2009
    Applicant: SALTIGO GMBH
    Inventors: Alain Cotte, Nikolaus Muller, Matthias Gotta, Matthias Beller, Thomas Schareina, Alexander Zapf
  • 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
  • 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
  • Patent number: 6794549
    Abstract: The present invention relates to a continuous adiabatic process for preparing nitrochlorobenzene in the presence of phosphoric acid. The waste acid produced during the practice of the process is reconcentrated and recycled into the nitration reaction.
    Type: Grant
    Filed: February 6, 2003
    Date of Patent: September 21, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ralf Demuth, Matthias Gotta, Thomas Linn, Hans-Martin Weber, Eberhard Zirngiebl
  • Patent number: 6768032
    Abstract: The present invention relates to a continuous isothermal process for preparing mononitrotoluenes in the presence of a mixed acid component comprising mixtures of sulfuric acid and phosphoric acid with concentration of the resultant waste acid and recycling of the concentrated waste acid to the process.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: July 27, 2004
    Assignee: Bayer Chemicals AG
    Inventors: Matthias Gotta, Ralf Demuth, Eberhard Zirngiebl, Hans-Martin Weber, Georg Ronge
  • Publication number: 20030181771
    Abstract: The present invention relates to a continuous adiabatic process for preparing nitrochlorobenzene in the presence of phosphoric acid. The waste acid produced during the practice of the process is reconcentrated and recycled into the nitration reaction.
    Type: Application
    Filed: February 6, 2003
    Publication date: September 25, 2003
    Inventors: Ralf Demuth, Matthias Gotta, Thomas Linn, Hans-Martin Weber, Eberhard Zirngiebl
  • Publication number: 20020147372
    Abstract: The present invention relates to a continuous isothermal process for preparing mononitrotoluenes in the presence of a mixed acid component comprising mixtures of sulfuric acid and phosphoric acid with concentration of the resultant waste acid and recycling of the concentrated waste acid to the process.
    Type: Application
    Filed: April 2, 2002
    Publication date: October 10, 2002
    Inventors: Matthias Gotta, Ralf Demuth, Eberhard Zirngiebl, Hans-Martin Weber, Georg Ronge