Patents by Inventor Sergii Pazenok

Sergii Pazenok 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).

  • 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
  • PROCESS FOR PREPARING TETRAZOLE-SUBSTITUTED ANTHRANILIC ACID DIAMIDE DERIVATIVES BY REACTING BENZOXAZINONES WITH AMINES
    Publication number: 20140194623
    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 benzoxazinones with amines.
    Type: Application
    Filed: August 24, 2012
    Publication date: July 10, 2014
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Sergii Pazenok, Werner Lindner, Hartmut Scheffel
  • Preparing 5-fluoro-1-alkyl-3-fluoroalkyl-1H-pyrazole-4-carbaldehydes
    Patent number: 8765971
    Abstract: The present invention relates to a novel process for preparing 5-fluoro-1-alkyl-3-fluoroalkyl-1H-pyrazole-4-carbonyl chlorides, a useful intermediate in the manufacture of fungicides.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: July 1, 2014
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui, Marc Kosten, Guenter Bartels
  • METHOD FOR THE PRODUCTION OF 2-AMINO-5-CYANO-N,3-DIMETHYLBENZAMIDE
    Publication number: 20140148611
    Abstract: The present invention relates to a process for preparing 2-amino-5-cyano-N,3-dimethylbenzamide of formula (1) by reacting 2-amino-5-cyano-3-methylbenzoic esters or diesters with methylamine.
    Type: Application
    Filed: July 5, 2012
    Publication date: May 29, 2014
    Applicant: BAYER INTELLECTUAL PROPERTY GMBH
    Inventors: Frank Volz, Thomas Himmler, Thomas Norbert Müller, Sandra Lehmann, Sascha Von Morgenstern, Wahed Ahmed Moradi, Sergii Pazenok, Norbert Lui
  • Process for the preparation of 5-substituted 1-alkyltetrazolyl oxime derivatives
    Patent number: 8680283
    Abstract: The present invention relates to a process for the preparation of 5-substituted 1-alkyltetrazolyl oxime derivatives.
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: March 25, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Christian Beier, David Bernier, Pierre-Yves Coqueron, Philippe Desbordes, Christophe Dubost, Norbert Lui, Sergii Pazenok
  • Method for the regioselective synthesis of 1-alky1-3-haloalkyl-pyrazole-4-carboxylic acid derivatives
    Patent number: 8629288
    Abstract: The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives, and to the hydrazones formed as intermediates in the process.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: January 14, 2014
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Sergii Pazenok, Norbert Lui, Jens-Dietmar Heinrich, Thomas Wollner
  • Method for the regioselective synthesis of 1-Alkyl-3-haloalkyl-pyrazole-4-carboxylic acid derivatives
    Patent number: 8592605
    Abstract: The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives, and to the hydrazones formed as intermediates in the process.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: November 26, 2013
    Assignee: Bayer Intellectual Property GmbH
    Inventors: Sergii Pazenok, Norbert Lui, Jens-Dietmar Heinrich, Thomas Wollner
  • Process for the preparation of 1-alkyl and 1-aryl-5-pyrazolecarboxylic acid derivatives
    Patent number: 8586753
    Abstract: The present invention relates to a process for the preparation of 1-alkyl- or 1-aryl-substituted 5-pyrazolecarboxylic acid derivatives comprising the reaction of substituted 1,3-dioxolanes and 1,4-dioxanes with alkyl- or arylhydrazines to give 1-alkyl- or 1-aryl-substituted dihydro-1H-pyrazoles, and their further reaction to give 1-alkyl- or 1-aryl-substituted 5-pyrazolecarboxylic acid derivatives, which can be used as valuable intermediates for producing insecticidally effective anthranilamides.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: November 19, 2013
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui, Igor Gerus
  • Process for preparing 1-alkyl-3-difluoromethyl-5-hydroxypyrazoles
    Patent number: 8455664
    Abstract: The present invention relates to a process for preparing 1-alkyl-3-difluoromethyl-5-hydroxypyrazoles, which are valuable intermediates for the production of fungicides.
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: June 4, 2013
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Michael Müller, Norbert Lui
  • Process for Preparing Pyridyl-Substituted Pyrazoles
    Publication number: 20130131347
    Abstract: The present invention relates to a process for preparing 1-pyridyl-substituted pyrazoles, comprising the reaction of acetyleneketones with pyridylhydrazine derivatives to give 1-pyridyl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-pyridyl-substituted trihalomethylpyrazoles, and the further processing thereof.
    Type: Application
    Filed: January 11, 2013
    Publication date: May 23, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Sergii PAZENOK, Norbert LUI, Harry BLASCHKE
  • Preparing 5-fluoro-1-alkyl-3-fluoroalkyl-1H-pyrazole-4-carbonyl chlorides
    Patent number: 8436191
    Abstract: The present invention relates to a novel process for preparing 5-fluoro-1-alkyl-3-fluoroalkyl-1H-pyrazole-4-carbonyl chlorides, a useful intermediate in the manufacture of fungicides.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: May 7, 2013
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui, Marc Kosten, Guenter Bartels
  • Process for the preparation of 5-fluoro-1-alkyl-3-fluoroalky1-1H-pyrazole-4-carbonyl chlorides and fluorides
    Patent number: 8431718
    Abstract: The present invention relates to a novel process for the preparation of 5-fluoro-1-alkyl-3-fluoroalkyl-1H-pyrazole-4-carbonyl halides and the intermediates occurring in this process, ethyl 5-chloro-1-methyl-3-difluoromethyl-1H-pyrazole-4-carboxylate and ethyl 5-fluoro-1-methyl-3-difluoromethyl-1H-pyrazole-4-carboxylate.
    Type: Grant
    Filed: April 22, 2011
    Date of Patent: April 30, 2013
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui, Stephanie Gary
  • PROCESS FOR THE PREPARATION OF 5-SUBSTITUTED 1-ALKYLTETRAZOLYL OXIME DERIVATIVES
    Publication number: 20130102786
    Abstract: The present invention relates to a process for the preparation of 5-substituted 1-alkyltetrazolyl oxime derivatives.
    Type: Application
    Filed: June 27, 2011
    Publication date: April 25, 2013
    Inventors: Christian Beier, David Bernier, Pierre-Yves Coqueron, Phillipe Desbordes, Christophe Dubost, Norbert Lui, Sergii Pazenok
  • PROCESS FOR THE PREPARATION OF 5-SUBSTITUTED 1-ALKYLTETRAZOLYL OXIME DERIVATIVES
    Publication number: 20130096311
    Abstract: The present invention relates to a process for the preparation of 5-substituted 1-alkyltetrazolyl oxime derivatives.
    Type: Application
    Filed: June 21, 2011
    Publication date: April 18, 2013
    Inventors: Christian Beier, David Bernier, Pierre-Yves Coqueron, Philippe Desbordes, Christophe Dubost, Norbert Lui, Sergii Pazenok
  • Aryl-substituted pyrazoles
    Patent number: 8399679
    Abstract: The present invention relates to a process for preparing 1-aryl-substituted pyrazoles, comprising the reaction of alkoxy enones and enamino ketones with arylhydrazine derivatives to give 1-aryl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-aryl-substituted trihalomethylpyrazoles, and the further processing thereof.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: March 19, 2013
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui
  • Process for preparing pyridyl-substituted pyrazoles
    Patent number: 8362261
    Abstract: The present invention relates to a process for preparing 1-pyridyl-substituted pyrazoles, comprising the reaction of acetyleneketones with pyridylhydrazine derivatives to give 1-pyridyl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-pyridyl-substituted trihalomethylpyrazoles, and the further processing thereof.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: January 29, 2013
    Assignee: Bayer Cropscience AG
    Inventors: Sergii Pazenok, Norbert Lui, Harry Blaschke
  • Aryl-substituted Pyrazoles
    Publication number: 20130018192
    Abstract: The present invention relates to a process for preparing 1-aryl-substituted pyrazoles, comprising the reaction of alkoxy enones and enamino ketones with arylhydrazine derivatives to give 1-aryl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-aryl-substituted trihalomethylpyrazoles, and the further processing thereof.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 17, 2013
    Applicant: Bayer Intellectual Property GmbH
    Inventors: Sergii Pazenok PAZENOK, Norbert Lui
  • Process for the regioselective preparation of 1-alkyl-3-haloalkylpyrazole-4-carboxylic acid derivatives
    Patent number: 8350053
    Abstract: The present invention relates to a process for the regioselective synthesis of 1-alkyl-3-halo-alkylpyrazole-4-carboxylic acid derivatives by cyclization of 2,3-disubstituted acrylic acid derivatives with hydrazines in the presence of carbonyl compounds.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: January 8, 2013
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui, Arnd Neeff
  • Process for preparing 2,4-dihydroxyphenyl 4-methoxybenzyl ketones
    Patent number: 8324431
    Abstract: The invention relates to a process for preparing 2,4-dihydroxyphenyl 4-methoxybenzyl ketones of the formula (I) by Friedel-Crafts acylation in hydrogen fluoride (HF). 2,4-Dihydroxyphenyl 4-methoxybenzyl ketones of the formula (I) in which R1 and R2 are each hydrogen, chlorine, fluorine, bromine, iodine, CF3, methyl, optionally substituted alkoxy, —OCF3, —C(CH3)3, —CH2(CH3)2, —CH(CH3)2, R3 is hydrogen, Cl, F, Br, optionally substituted alkyl, optionally substituted alkoxy, —C(CH3)3, and X is hydroxyl, F, Cl, Br, optionally substituted alkoxy, are obtained in high yield and high purity by reacting phenylacetic acid derivatives of the formula (II) with phenols of the formula (III) in liquid hydrogen fluoride (HF).
    Type: Grant
    Filed: February 16, 2008
    Date of Patent: December 4, 2012
    Assignee: Plant Health Care, Inc.
    Inventors: Sergii Pazenok, Norbert Lui
  • Process for preparing aryl-substituted pyrazoles
    Patent number: 8299260
    Abstract: The present invention relates to a process for preparing 1-aryl-substituted pyrazoles, comprising the reaction of alkoxy enones and enamino ketones with arylhydrazine derivatives to give 1-aryl-substituted dihydro-1H-pyrazoles, the further reaction thereof with elimination of water to give 1-aryl-substituted trihalomethylpyrazoles, and the further processing thereof.
    Type: Grant
    Filed: July 23, 2010
    Date of Patent: October 30, 2012
    Assignee: Bayer CropScience AG
    Inventors: Sergii Pazenok, Norbert Lui