Patents by Inventor Arnd Neeff

Arnd Neeff 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).

  • DISUBSTITUTED 5(3)-PYRAZOLE CARBOXYLATES AND A PROCESS FOR THEIR PREPARATION FROM ENOLATES AND FLUOROALKYLAMINOREAGENTS (FAR) REAGENTS
    Publication number: 20210253533
    Abstract: The present invention relates to disubstituted 5(3)-pyrazole carboxylates of the formula (Ia) or (Ib) and a process for their preparation wherein R1, R2, R3, R4 and n are defined as above.
    Type: Application
    Filed: June 14, 2019
    Publication date: August 19, 2021
    Inventors: Sergii PAZENOK, Anton LISHCHYNSKYI, Arnd NEEFF, Winfried ETZEL
  • Method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate
    Patent number: 10906893
    Abstract: The invention relates to a method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate from 4-methoxycarbonyl-2-methylthiophene-3-sulfonyl chloride in the presence of an imidazole base substituted in the 1-position or in the presence of a mixture of bases comprising an imidazole base substituted in the 1-position (N-alkylimidazole).
    Type: Grant
    Filed: February 15, 2018
    Date of Patent: February 2, 2021
    Assignees: Bayer CropScience Aktiengesellschaft, Bayer Aktiengesellschaft
    Inventors: Sergii Pazenok, Christian Funke, Friedrich August Muehlthau, Mark James Ford, Arnd Neeff, Klaus-Ulrich Schiffer
  • METHOD FOR PREPARING METHYL 4-[(4,5-DIHYDRO-3-METHOXY-4-METHYL-5-OXO-1H-1,2,4-TRIAZOL-1-YL)CARBONYL)SULFAMOYL]-5-METHYLTHIOPHENE-3-CARBOXYLATE
    Publication number: 20200048234
    Abstract: The invention relates to a method for preparing methyl 4-[(4,5-dihydro-3-methoxy-4-methyl-5-oxo-1H-1,2,4-triazol-1-yl)carbonyl)sulfamoyl]-5-methylthiophene-3-carboxylate from 4-methoxycarbonyl-2-methylthiophene-3-sulfonyl chloride in the presence of an imidazole base substituted in the 1-position or in the presence of a mixture of bases comprising an imidazole base substituted in the 1-position (N-alkylimidazole).
    Type: Application
    Filed: February 15, 2018
    Publication date: February 13, 2020
    Inventors: Sergii PAZENOK, Christian FUNKE, Friedrich August MUEHLTHAU, Mark James FORD, Arnd NEEFF, Klaus-Ulrich SCHIFFER
  • Method for preparing N-(1,3,4-oxadiazol-2-yl)arylcarboxamides
    Patent number: 10189800
    Abstract: A method for preparing N-(1,3,4-oxadiazol-2-yl)arylcarboxamides of formula (I) is described. The substituents therein are radicals such as hydrogen, alkyl, haloalkyl or aryl.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: January 29, 2019
    Assignee: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
    Inventors: Christian Funke, Arnd Neeff, Sergii Pazenok, Norbert Lui
  • Method for preparing N-(1,3,4-oxadiazol-2-yl)arylcarboxamides
    Publication number: 20180273496
    Abstract: A method for preparing N-(1,3,4-oxadiazol-2-yl)arylcarboxamides of formula (I) is described. The substituents therein are radicals such as hydrogen, alkyl, haloalkyl or aryl.
    Type: Application
    Filed: September 23, 2016
    Publication date: September 27, 2018
    Inventors: Christian FUNKE, Arnd NEEFF, Sergii PAZENOK, Norbert LUI
  • Process for the preparation of 5-fluoro-1H-pyrazoles
    Patent number: 9725415
    Abstract: A new process for the preparation of 5-fluoro-1H-pyrazoles of the general formula (I) as described herein, resulting from the reaction of an olefin with hydrazine in the presence of water and a base.
    Type: Grant
    Filed: November 25, 2014
    Date of Patent: August 8, 2017
    Assignee: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
    Inventors: Sergii Pazenok, Norbert Lui, Christian Funke, Arnd Neeff, Vadim Mikhailovich Timoshenko, Elena Ivanovna Kaminskaya, Yuriy Grigorievich Shermolovich
  • Process for preparing 3,5-bis(haloalkyl)pyrazole derivatives from ?,?-dihaloamines and ketimines
    Patent number: 9701640
    Abstract: The present invention relates to a novel process for preparing 3,5-bis(haloalkyl)pyrazole derivatives from ?,?-dihaloamines and ketimines.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: July 11, 2017
    Assignee: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
    Inventors: Sergii Pazenok, Norbert Lui, Christian Funke, Winfried Etzel, Arnd Neeff
  • Method for the preparation of perfluoroalkyl containing pyrazoles carboxylates
    Patent number: 9617220
    Abstract: The present invention pertains to a novel process for the preparation of Fluoroalkylpyrazole- or Bisperfluoroalkypyrazole carboxylates comprising a cyclization of Perfluoroalkyl ketoesters with hydrazines.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: April 11, 2017
    Assignee: BAYER CROPSCIENCE AG
    Inventors: Sergii Pazenok, Winfried Etzel, Norbert Lui, Arnd Neeff
  • Process for preparing 3,5-bis(haloalkyl)pyrazole derivatives from a,a-dihaloamines and ketimines
    Publication number: 20170088521
    Abstract: The present invention relates to a novel process for preparing 3,5-bis(haloalkyl)pyrazole derivatives from ?,?-dihaloamines and ketimines.
    Type: Application
    Filed: March 20, 2015
    Publication date: March 30, 2017
    Applicant: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
    Inventors: Sergii PAZENOK, Norbert LUI, Christian FUNKE, Winfried ETZEL, Arnd NEEFF
  • Process for preparing 3,5-bis(haloalkyl)pyrazole derivatives from a,a-dihaloamines
    Patent number: 9518025
    Abstract: The present invention relates to a novel process for preparing 3,5-bis(haloalkyl)pyrazole derivatives.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: December 13, 2016
    Assignee: BAYER CROPSCIENCE AKTIENGESELLSCHAFT
    Inventors: Sergii Pazenok, Mark James Form, Arnd Neeff
  • Process for preparing 3,5-bis(fluoroalkyl)pyrazole derivatives from ?,?-dihaloamines
    Patent number: 9512081
    Abstract: The present invention relates to a novel process for preparing 3,5-bis(fluoroalkyl)pyrazole derivatives from ?,?-dihaloamines.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: December 6, 2016
    Assignees: BAYER CROPSCIENCE AKTIENGESELLSCHAFT, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Sergii Pazenok, Norbert Lui, Arnd Neeff, Winfried Etzel, Jean-Pierre Vors, Frederic R. Leroux, Gregory Landelle, Mark James Ford
  • PROCESS FOR THE PREPARATION OF 5-FLUORO-1H-PYRAZOLES
    Publication number: 20160289194
    Abstract: A new process for the preparation of 5-fluoro-1H-pyrazoles of the general formula (I) as described herein, resulting from the reaction of an olefin with hydrazine in the presence of water and a base.
    Type: Application
    Filed: November 25, 2014
    Publication date: October 6, 2016
    Inventors: Sergii PAZENOK, Norbert LUI, Christian FUNKE, Arnd NEEFF, Vadim Mikhailovich TIMOSHENKO, Elena Ivanovna KAMINSKAYA, Yuriy Grigorievich SHERMOLOVICH
  • PROCESS FOR PREPARING 3,5-BIS(HALOALKYL)PYRAZOLE DERIVATIVES FROM a,a-DIHALOAMINES
    Publication number: 20160289193
    Abstract: The present invention relates to a novel process for preparing 3,5-bis(haloalkyl)pyrazole derivatives.
    Type: Application
    Filed: November 10, 2014
    Publication date: October 6, 2016
    Inventors: SERGII PAZENOK, MARK JAMES FORD, ARND NEEFF
  • PROCESS FOR PREPARING 3,5-BIS(FLUOROALKYL)PYRAZOLE DERIVATIVES FROM a,a-DIHALOAMINES
    Publication number: 20160108000
    Abstract: The present invention relates to a novel process for preparing 3,5-bis(fluoroalkyl)pyrazole derivatives from ?,?-dihaloamines.
    Type: Application
    Filed: May 19, 2014
    Publication date: April 21, 2016
    Inventors: Sergii PAZENOK, Norbert LUI, Arnd NEEFF, Winfried ETZEL, Jean-Pierre VORS, Frederic R. LEROUX, Gregory LANDELLE, Mark James FORD
  • METHOD FOR THE PREPARATION OF PERFLUOROALKYL CONTAINING PYRAZOLES CARBOXYLATES
    Publication number: 20150239846
    Abstract: The present invention pertains to a novel process for the preparation of Fluoroalkylpyrazole- or Bisperfluoroalkypyrazole carboxylates comprising a cyclization of Perfluoroalkyl ketoesters with hydrazines.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 27, 2015
    Inventors: Sergii Pazenok, Winfried Etzel, Norbert Lui, Arnd Neeff
  • Process for preparing tetrazole-substituted anthranilamide derivatives and novel crystal polymorphs of these derivatives
    Patent number: 9056861
    Abstract: The present invention relates to a process for preparing tetrazole-substituted anthranilamide derivatives of the formula (I) in which R1, R2, R3, R4, R5 and Z are each as defined in the description, and to a novel crystal polymorph of these derivatives and to the use thereof in agrochemical formulations.
    Type: Grant
    Filed: September 22, 2014
    Date of Patent: June 16, 2015
    Assignee: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Sergii Pazenok, Norbert Lui, Frank Volz, Britta Olenik, Christian Funke, Ruediger Fischer, Oliver Gaertzen, Martin-Holger Hinz, Arnd Neeff
  • Process for preparing tetrazole-substituted anthranilamide derivatives and novel crystal polymorphs of these derivatives
    Patent number: 8969572
    Abstract: The present invention relates to a process for preparing tetrazole-substituted anthranilamide derivatives of the formula (I) in which R1, R2, R3, R4, R5 and Z are each as defined in the description, and to a novel crystal polymorph of these derivatives and to the use thereof in agrochemical formulations.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: March 3, 2015
    Assignee: Bayer Cropscience AG
    Inventors: Sergii Pazenok, Norbert Lui, Frank Volz, Britta Olenik, Christian Funke, Rüdiger Fischer, Oliver Gaertzen, Martin-Holger Hinz, Arnd Neeff
  • PROCESS FOR PREPARING TETRAZOLE-SUBSTITUTED ANTHRANILAMIDE DERIVATIVES AND NOVEL CRYSTAL POLYMORPHS OF THESE DERIVATIVES
    Publication number: 20150025116
    Abstract: The present invention relates to a process for preparing tetrazole-substituted anthranilamide derivatives of the formula (I) in which R1, R2, R3, R4, R5 and Z are each as defined in the description, and to a novel crystal polymorph of these derivatives and to the use thereof in agrochemical formulations.
    Type: Application
    Filed: September 22, 2014
    Publication date: January 22, 2015
    Inventors: Sergii PAZENOK, Norbert LUI, Frank VOLZ, Britta OLENIK, Christian FUNKE, Ruediger FISCHER, Oliver GAERTZEN, Martin-Holger HINZ, Arnd NEEFF
  • Method for producing tetrazole-substituted anthranilic acid diamide derivatives by reacting pyrazolic acids with anthranilic acid esters
    Patent number: 8916710
    Abstract: The present invention relates to a process for preparing tetrazole-substituted anthranilic acid diamide derivatives of the formula (I) in which R1, R2, R3, R4, Q and Z have the meanings given in the description, by reacting pyrazole acids with anthranilic esters.
    Type: Grant
    Filed: July 5, 2012
    Date of Patent: December 23, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Sergii Pazenok, Frank Volz, Norbert Lui, Arnd Neeff, Sylvia Szywalski
  • METHOD FOR PRODUCING TETRAZOLE-SUBSTITUTED ANTHRANILIC ACID DIAMIDE DERIVATIVES BY REACTING PYRAZOLIC ACIDS WITH ANTHRANILIC ACID ESTERS
    Publication number: 20140235865
    Abstract: The present invention relates to a process for preparing tetrazole-substituted anthranilic acid diamide derivatives of the formula (1) in which R1, R2, R3, R4, Q and Z have the meanings given in the description, by reacting pyrazole acids with anthranilic esters.
    Type: Application
    Filed: July 5, 2012
    Publication date: August 21, 2014
    Applicant: Bayer Intellectual Property GMBH
    Inventors: Sergii Pazenok, Frank Volz, Norbert Lui, Arnd Neeff, Sylvia Szywalski