Patents by Inventor Jörn Stölting

Jörn Stölting 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: 7674917
    Abstract: The present invention relates to a process for preparing compounds of the general formula (I) in which R1 and R2 are as defined in the description by reacting compounds of the formula (II) in which R1 and R2 are as defined in the description with phosgene in the absence of a base and in the presence of one or more diluents and also optionally of a catalyst.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: March 9, 2010
    Assignee: Bayer CropScience AG
    Inventors: Thomas Geller, Jörn Stölting
  • Publication number: 20090281334
    Abstract: The present invention relates to a process for preparing compounds of the general formula (I) in which R1 and R2 are as defined in the description by reacting compounds of the formula (II) in which R1 and R2 are as defined in the description with phosgene in the absence of a base and in the presence of one or more diluents and also optionally of a catalyst.
    Type: Application
    Filed: December 14, 2001
    Publication date: November 12, 2009
    Applicant: BAYER CROPSCIENCE
    Inventors: Thomas Geller, Jörn Stölting
  • Patent number: 7514565
    Abstract: The invention relates to compounds of the formule
    Type: Grant
    Filed: December 15, 2006
    Date of Patent: April 7, 2009
    Assignee: Bayer AG
    Inventors: Jürgen Stoltefuβ, Siegfried Goldmann, Thomas Krämer, Karl-Heinz Schlemmer, Ulrich Niewöhner, Maria Niewöhner, Arnold Paeβens, Erwin Graef, Stefan Lottmann, Karl Deres, Olaf Weber, Jörn Stölting
  • Patent number: 7235668
    Abstract: The present invention relates to a novel process for the preparation of compounds of the formula (I) by reacting in a first step amino alcohols of the formula (II) with oleum to give sulphuric acid esters of the general formula (III) and by reacting these sulphuric acid esters in a second step with mercaptans or salts thereof of the general formula (IV) RSM ??(IV) wherein in each formula, where applicable, R1, R2, R3, R4, R5, R6, R, n and M have the meanings given in the disclosure, in the presence of a diluent and in the presence of a base.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: June 26, 2007
    Assignee: Bayer CropScience AG
    Inventor: Jörn Stölting
  • Patent number: 7034156
    Abstract: The present invention relates to a novel process for preparing known 1-amino-3-phenyluracil derivatives, to novel 1-amino-6-hydroxy-3-phenyldihydro-2,4(1H,3H)pyrimidinedione derivatives of the formula (II) in which R1 is hydrogen, cyano, nitro or halogen, R2 is cyano, nitro, halogen or optionally substituted alkyl or alkoxy, R3 is hydrogen, hydroxyl, mercapto, amino, hydroxyamino, hydrazino, halogen, or one of the radicals —R6, -Q-R6, —NH—R6, —NH—O—R6, —NH—SO2—R6, —N(SO2—R6)2, —CQ1-R6, —CQ1-Q2-R6, —CQ1-NH—R6, -Q2-CQ1-R6, —NH—CQ1-R6, —N(SO2—R6)(CQ1-R6), -Q2-CQ1-Q2-R6, —NH—CQ1-Q2-R6 or -Q2-CQ1-NH—R6, where Q is O, S, SO or SO2, Q1 and Q2 are each independently oxygen or sulphur and R6 is optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkylalkyl, aryl, arylalkyl, heterocyclyl or heterocyclylalkyl, R4 is hydrogen, halogen or optionally substituted alkyl, and R5 is fluorine- and/or chlorine-substituted alkyl, as intermediates for the 1-amino-3-phenyluracil derivatives, and to a process f
    Type: Grant
    Filed: April 25, 2002
    Date of Patent: April 25, 2006
    Assignee: Bayer CropScience AG
    Inventors: Jörn Stölting, Dorothee Hoischen, Roland Andree, Karl-Heinz Linker, Holger Weintritt, Heinz-Jürgen Wroblowsky
  • Patent number: 7026307
    Abstract: The present invention relates to a process for the preparation of compounds of the formula (I) by reacting compounds of the formula (II) in which R1, R2, R4 and Het are as defined in the description, with anhydrous hydrogen halide in the presence of a nitrile.
    Type: Grant
    Filed: April 24, 2002
    Date of Patent: April 11, 2006
    Assignee: Bayer CropScience AG
    Inventors: Jörn Stölting, Kai van Laak, Wolfram Sirges, Armin Heyn, Torsten Taschner
  • Patent number: 7019056
    Abstract: An oligophosphate of general formula is disclosed. The oligophosphate is suitable as a flame retardant for thermoplastic molding compositions that exhibit a good flame-retardant effect, improved dimensional stability under the effect of heat, a good level of toughness and excellent flowability.
    Type: Grant
    Filed: January 4, 2002
    Date of Patent: March 28, 2006
    Assignee: Bayer Aktiengesellschaft
    Inventors: Andreas Seidel, Käthe Baumann, Thomas Eckel, Michael Zobel, Jörn Stölting, Dieter Wittmann
  • Patent number: 6696451
    Abstract: The invention relates to compounds of the general formulae (I) and (Ia) The invention furthermore relates to processes for preparing the compounds of the formulae (I) and (Ia) and to their use as medicaments, in particular for the treatment and prophylaxis of hepatitis B.
    Type: Grant
    Filed: October 18, 2000
    Date of Patent: February 24, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jürgen Stoltefuss, Siegfired Goldmann, Thomas Krämer, Karl-Heinz Schlemmer, Ulrich Niewöhner, Arnold Paessens, Erwin Graef, Stefan Lettmann, Karl Deres, Olaf Weber, Jörn Stölting
  • Patent number: 6583204
    Abstract: Thermoplastic moulding composition comprising at least 2 components chosen from the group consisting of aromatic poly(ester)carbonates, graft polymers of one or more vinyl monomers on one or more graft bases having a glass transition temperature of <10° C., thermoplastic vinyl (co)polymer and polyalkylene terephthalate and 0.5 to 20 parts by wt. phosphorus compound of the general formula (I).
    Type: Grant
    Filed: May 16, 2001
    Date of Patent: June 24, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Thomas Eckel, Dieter Wittmann, Jörn Stölting, Michael Zobel
  • Patent number: 6569881
    Abstract: The present invention relates to a new substituted benzimidazoles, their preparation and their use as agents against parasitic protazoa.
    Type: Grant
    Filed: October 30, 2001
    Date of Patent: May 27, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Giesela Greif, Axel Haberkorn, Bernd Baasner, Folker Lieb, Albrecht Marhold, Jörn Stölting
  • Patent number: 6518296
    Abstract: The invention relates to novel substituted 3-thiocarbamoylpyrazoles of general formula (I), wherein m, n, R1, R2, R3 and Ar have the meanings cited in the description. The invention further relates to methods for the production and use thereof as pesticides.
    Type: Grant
    Filed: November 28, 2000
    Date of Patent: February 11, 2003
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd Alig, Albrecht Marhold, Jörn Stölting, Wolfgang Gau, Christoph Erdelen, Andreas Turberg, Norbert Mencke, Olaf Hansen
  • Patent number: 6420601
    Abstract: 3,5-Bis(trifluoromethyl)benzoyl chlorides optionally substituted with fluorine or chlorine are advantageously prepared by converting 3,5-dimethylbenzoic acids optionally substituted with fluorine or chlorine into the corresponding acid chlorides; completely free-radically chlorinating said chlorides in the side chains, giving 3,5-bis(trichloromethyl)benzoyl chlorides optionally substituted by fluorine or chlorine; fluorinating the latter with anhydrous hydrogen fluoride and/or antimony pentafluoride, giving 3,5-bis(trifluoromethyl)benzoyl fluorides optionally substituted with fluorine or chlorine; and then reacting the 3,5-bis(trifluoromethyl)benzoyl fluorides with silicon tetrachloride in the presence of a further Lewis acid. Some of the 3,5-bis(trihalogenomethyl) and 3,5-dimethylbenzoyl halides which arise as intermediates are novel compounds.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: July 16, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Jörn Stölting
  • Patent number: 6395921
    Abstract: [Bis-(trifluoromethyl)-phenyl]-acetic acids are obtained in an advantageous manner by reacting an appropriate bromo- or iodo-bis-(trifluoromethyl)-benzene with a di-C1-C4-alkyl malonate in the presence of a deprotonating agent and a copper salt and hydrolysing and decarboxylating the reaction product in basic medium. It is possible to obtain a mixture of alkyl [bis-(trifluoromethyl)-phenyl]-acetate and alkyl [bis-(tri-fluoromethyl)-phenyl]-malonate by admixing the reaction mixture which is present before hydrolysis and complete decarboxylation with water and acid and heating. From the mixture, it is possible to obtain alkyl [bis-(trifluoromethyl)-phenyl]-acetate by distillation under reduced pressure and dialkyl [bis-(trifluoromethyl)-phenyl]-malonate by work-up by column chromatography, fractional distillation or film distillation. [Bis-(trifluoromethyl)-phenyl]-malonic esters are novel compounds.
    Type: Grant
    Filed: August 9, 2000
    Date of Patent: May 28, 2002
    Assignee: Bayer Aktiengesellschaft
    Inventors: Albrecht Marhold, Jörn Stölting