Patents by Inventor Michael Keil

Michael Keil 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 and novel intermediates for preparing isoxazolin-3-ylacyl benzenes
    Patent number: 6706886
    Abstract: The present invention describes a process for preparing isoxazoles of the formula I where: R1 is hydrogen, C1-C6-alkyl, R2 is hydrogen, C1-C6-alkyl, R3, R4, R5 are each hydrogen, C1-C6-alkyl or R4 and R5 together form a bond, R6 is a heterocyclic ring, n is 0, 1 or 2; which comprises preparing an intermediate of the formula VI where R1, R3, R4 and R5 are each as defined above, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of the formula I. Furthermore, the invention describes novel intermediates for preparing the compounds of the formula I and novel processes for preparing the intermediates.
    Type: Grant
    Filed: May 14, 2003
    Date of Patent: March 16, 2004
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Götz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Process and novel intermediates for preparing isoxazolin-3-ylacyl benzenes
    Patent number: 6670482
    Abstract: The present invention describes a process for preparing isoxazoles of the formula I where: R1 is hydrogen, C1-C6-alkyl, R2 is hydrogen, C1-C6-alkyl, R3, R4, R5 are each hydrogen, C1-C6-alkyl or R4 and R5 together form a bond, R6 is a heterocyclic ring, n is 0, 1 or 2; which comprises preparing an intermediate of the formula VI where R1, R3, R4 and R5 are each as defined above, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of the formula I. Furthermore, the invention describes novel intermediates for preparing the compounds of the formula I and novel processes for preparing the intermediates.
    Type: Grant
    Filed: August 19, 2002
    Date of Patent: December 30, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Götz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Process and novel intermediates for preparing isoxazolin-3-ylacyl benzenes
    Publication number: 20030220505
    Abstract: The present invention describes a process for preparing isoxazoles of the formula I 1
    Type: Application
    Filed: May 14, 2003
    Publication date: November 27, 2003
    Inventors: Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Gotz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Preparation of Isoxazolin-3-Ylacylbenzene
    Publication number: 20030216580
    Abstract: A process is described for preparing isoxazoles of the formula I 1
    Type: Application
    Filed: April 17, 2003
    Publication date: November 20, 2003
    Inventors: Joachim Rheinheimer, Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Gotz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Preparation of isoxazolin-3-ylacylbenzenes
    Patent number: 6608209
    Abstract: A process is described for preparing isoxazoles of the formula I wherein R1 is hydrogen, C1-C6-alkyl, R2 is C1-C6-alkyl, R3, R4, R5 are hydrogen, C1-C6-alkyl, or R4 and R5 together form a bond, R6 is a heterocyclic ring, n is 0, 1 or 2; in which an intermediate of the formula VI  is prepared, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of formula I. Novel intermediates for preparing the intermediates are described.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: August 19, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Rheinheimer, Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Götz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Preparation of -4-thioalkybrobenzene derivatives
    Publication number: 20030149276
    Abstract: A process for preparing 4-thioalkylbromobenzene derivatives of the formula I 1
    Type: Application
    Filed: January 14, 2003
    Publication date: August 7, 2003
    Inventors: Rene Lochtman, Michael Keil, Joachim Gebhardt, Michael Rack, Wolfgang von Deyn
  • Method for producing isoxazoline-3-yl-acyl benzene
    Patent number: 6525204
    Abstract: A process is described for preparing isoxazol-3-ylacylbenzenes. Also, novel intermediates for preparing isoxazol-3-ylacylbenzenes and novel processes for preparing the intermediates are described.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: February 25, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Joachim Rheinheimer, Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Götz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Process and novel intermediates for preparing isoxazolin-3-ylacyl benzenes
    Publication number: 20030028033
    Abstract: The present invention describes a process for preparing isoxazoles of the formula I 1
    Type: Application
    Filed: August 19, 2002
    Publication date: February 6, 2003
    Inventors: Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Gotz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Miblitz, Ernst Baumann
  • Preparation of isoxazolin-3-ylacylbenzenes
    Publication number: 20030018200
    Abstract: A process is described for preparing isoxazoles of the formula I 1
    Type: Application
    Filed: June 27, 2002
    Publication date: January 23, 2003
    Inventors: Joachim Rheinheimer, Wolfgang Von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Gotz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Method and novel intermediate products for producing isoxazolin-3-yl-acylbenzenenes
    Patent number: 6469176
    Abstract: The present invention describes a process for preparing isoxazoles of the formula I where: R1 is hydrogen, C1-C6-alkyl, R2 is hydrogen, C1-C6-alkyl, R3, R4, R5 are each hydrogen, C1-C6-alkyl or R4 and R5 together from a bond, R6 is a heterocysclic ring, n is 0, 1 or 2; which comprises preparing an intermediate of the formula VI where R1, R3, R4 and R5 are each as defined above, followed by halogenation, thiomethylation, oxidation and acylation to give compounds of the formula I. Furthermore, the invention describes novel intermediates for preparing the compounds of the formula I and novel processes for preparing the intermediates.
    Type: Grant
    Filed: May 9, 2001
    Date of Patent: October 22, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang von Deyn, Joachim Gebhardt, Michael Rack, Rene Lochtman, Norbert Götz, Michael Keil, Matthias Witschel, Helmut Hagen, Ulf Misslitz, Ernst Baumann
  • Method for preparing trion-bis(oxime ether) derivatives andrion-mono and trion-bis(oxime ether) derivatives obtained therewith
    Patent number: 6441236
    Abstract: The present invention relates to a method for the production of trion-bis(oxime ether) derivatives of formula (I), wherein the substituents have the following meaning: R1, R3 represent unsubstituted, partially or totally halogenated C1-C6-alkyl or C3-C6-cycloalkyl; R2, R4 represent C1-C4-alkyl or a methyl substituted by C2-C4-alkenyl, C2-C4-alkinyl or phenyl and X represents oxygen or N—OH. The invention also relates to the intermediate products obtained with said method.
    Type: Grant
    Filed: March 23, 2001
    Date of Patent: August 27, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Grote, Bernd Wolf, Michael Rack, Roland Götz, Andreas Gypser, Adrian Steinmetz, Hubert Sauter, Michael Keil, Horst Mayer
  • Method for the continuous production of methoxyamine hydrochloride
    Patent number: 6414191
    Abstract: The present invention relates to a process for the continuous preparation of methoxyamine hydrochloride by cleavage of acetone oxime methyl ether by means of hydrogen chloride and water, wherein the cleavage is carried out in a reaction column having less than 20 theoretical plates and the amount taken off at the top is set to at least 30% of the amount of feed.
    Type: Grant
    Filed: September 11, 2001
    Date of Patent: July 2, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Frank Heimann, Werner Peschel, Bernd Bartenbach, Horst Hartmann, Michael Keil, Josef Wahl
  • Bisoximether derivatives, methods and intermediate products for the production thereof, and their use for combating fungicidal pests and animal pests
    Patent number: 6414031
    Abstract: There are disclosed bisoxime ether derivatives of the formula I in which the variables have the following meanings: R1 is halogen, C1-C4-alkyl, C1-C4-haloalkyl, C1-C4-alkoxy or C1-C4-haloalkoxy; n is 1 to 5, it being possible for the radicals R1 to be different if n is other than 1; R2 is C1-C4-alkyl, C3-C6-alkenyl or C3-C6-alkynyl, it being possible for these groups to be partially or fully halogenated; Q is C(═CHOCH3)—COOCH3, C(═CHCH3)—COOCH3, C(═NOCH3)—COOCH3 or C(═NOCH3)13 CONHCH3; and salts thereof, processes and intermediates for the preparation of these compounds, and their use for controlling animal pests and harmful fungi.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: July 2, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Bayer, Roland Götz, Michael Keil, Hubert Sauter, Oliver Cullmann, Markus Gewehr, Wassilios Grammenos, Andreas Gypser, Bernd Müller, Arne Ptock, Eberhard Ammermann, Thomas Grote, Gisela Lorenz, Siegfried Strathmann, Volker Harries
  • Preparation of 4-bromoaniline derivatives
    Patent number: 6388135
    Abstract: A process for preparing 4-bromoaniline derivatives of the formula I where: R1 is C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C1-C6-haloalkoxy, C3-C8-cycloalkyl, halogen R2 is C1-C6-alkyl, C1-C6-alkoxy, C3-C8-cycloalkyl, C2-C6-alkenyl, cyano or a heterocyclic radical is described.
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: May 14, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Rene Lochtman, Michael Keil, Joachim Gebhardt, Michael Rack, Wolfgang von Deyn
  • Method for producing (hetero)aromatic hydroxylamines
    Patent number: 6255489
    Abstract: The invention relates to a method for producing N-acylated (hetero)aromatic hydroxylamine derivatives of formula (I), wherein the substituents, the ring atom and the index have the meanings give in the Description, by hydrogenating a (hetero)aromatic nitro-compound of general formula (II) in the presence of a hydrogenation catalyst.
    Type: Grant
    Filed: February 29, 2000
    Date of Patent: July 3, 2001
    Assignee: BASF Aktiengesellschaft
    Inventors: Ralf Klintz, Norbert Götz, Michael Keil, Manfred Heilig, Horst Wingert, Uwe Josef Vogelbacher, Josef Wahl, Frank Wetterich, Gregor Daun
  • Process for preparing 2-(2-methylphenyl)-3-methoxyacrylic acid methylester
    Patent number: 6162945
    Abstract: A process for preparing methyl 2-(2-methylphenyl)-3-methoxyacrylate (I) by formylation of methyl 2-methylphenylacetate (II) ##STR1## in an inert solvent in the presence of a base, and subsequent methylation of the enolate III formed ##STR2## where M.sup.+ is an alkali metal cation.
    Type: Grant
    Filed: August 4, 1998
    Date of Patent: December 19, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Michael Keil, Josef Wahl
  • Method for producing 2-(3-pyrazolyl-oxymethylene) nitrobenzenes
    Patent number: 6133451
    Abstract: 2-(3-Pyrazolyloxymethylene)nitrobenzene [sic] derivatives of the formula I ##STR1## where the substituents and indices have the meanings given in the description,are prepared by bromination of an o-nitrotoluene of the formula II ##STR2## and subsequent reaction with a 3-hydroxypyrazole of the formula IV ##STR3##
    Type: Grant
    Filed: January 27, 2000
    Date of Patent: October 17, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Wingert, Norbert Gotz, Michael Keil, Ralf Klintz, Uwe Josef Vogelbacher, Josef Wahl
  • Method for preparing substituted benzyl bromides
    Patent number: 6133468
    Abstract: Substituted benzyl bromides of the formula I ##STR1## where at least one substituent R.sup.1-5 is an electron-attracting group such as fluorine, chlorine, bromine, C.sub.1 -C.sub.4 -alkoxycarbonyl, cyano or nitro, and the other substituents R.sup.1-5 are hydrogen or methyl,are prepared by bromination of substituted toluenes of the formula II ##STR2## with a brominating agent at from 20 to 95.degree. C.
    Type: Grant
    Filed: January 11, 2000
    Date of Patent: October 17, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Horst Wingert, Norbert Gotz, Michael Keil, Bernd Muller
  • Method for producing N-substituted 3-hydroxypyrazoles
    Patent number: 6040458
    Abstract: A process is described for preparing N-substituted 3-hydroxypyrazoles of the formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl or heteroaryl andR.sup.2, R.sup.3 are hydrogen, cyano, halogen and unsubstituted or substituted alkyl, alkenyl, alkynyl, cycloalkyl, aryl or heteroaryl,by oxidizing a corresponding pyrazolidin-3-one.
    Type: Grant
    Filed: June 14, 1999
    Date of Patent: March 21, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Uwe Josef Vogelbacher, Michael Keil, Ralf Klintz, Josef Wahl, Horst Wingert, Hartmann Konig, Michael Rack, Roland Gotz, Joaquim Henrique Teles
  • Preparation of a-methoxyiminocarboxylic acid methylamides and intermediates therefore
    Patent number: 5856560
    Abstract: A process and intermediates for preparing .alpha.
    Type: Grant
    Filed: December 10, 1996
    Date of Patent: January 5, 1999
    Assignee: BASF Aktiengesellschaft
    Inventors: Herbert Bayer, Heinz Isak, Horst Wingert, Hubert Sauter, Michael Keil, Markus Nett, Remy Benoit, Ruth Muller