Patents by Inventor Matthias Witschel

Matthias Witschel 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).

  • Publication number: 20030216257
    Abstract: The use of 1-aryl-4-haloalkyl-2-[1H]-pyridones of the formula I 1
    Type: Application
    Filed: January 14, 2003
    Publication date: November 20, 2003
    Inventors: Ingo Sagasser, Olaf Menke, Gerhard Hamprecht, Michael Puhl, Robert Reinhard, Matthias Witschel, Cyrill Zagar, Helmut Walter
  • Patent number: 6645919
    Abstract: 3-(4,5-Dihydroisoxazol-5-yl)benzoylcyclohexenones of the formula I in which the variables have the following meanings: R1, R2 are hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkylsulfonyl or C1-C6-haloalkylsulfonyl; R3 is hydrogen, halogen or alkyl; R4 is hydrogen or alkyl; R5, R6 are hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl, benzyl or carbonyl, it being possible for the 7 last-mentioned radicals to be substituted; R11 is unsubstituted or substituted cyclohexenone which is linked in position 2 and has attached to it in position 1 a hydroxyl radical or derivatives thereof; and their agriculturally useful salts, processes for the preparation of the 3-(4,5-dihydroisoxazol-5-yl)benzoylcyclohexenones, compositions comprising them, and the use of these derivatives or of compositions comprising them for controlling undesired plants.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: November 11, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Helmut Walter, Cyrill Zagar, Matthias Witschel
  • Publication number: 20030199699
    Abstract: The invention relates to 3-(4,5-dihydroisoxazole-5-yl)benzoylcyclohexenones of the general formula (I), wherein the variables have the following meanings: R1, R2 represents hydrogen, nitro, halogen, cyano, alkyl, haloalkyl, alkoxy, haloalkoxy, alkylthio, haloalkylthio, alkylsulfinyl, haloalkylsulfinyl, alkysulfonyl or C1-C6 haloalkylsulfonyl; R3 represents hydrogen, halogen or alkyl; R4 represents hydrogen or alkyl; R5, R6 represents hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl, benzyl or carbonyl, wherein the 7 last residues can be substituted; R11 represents optionally substituted cyclohexenone that is linked in the 2 position and that carries a hydroxy residue or derivatives thereof in the 1 position.
    Type: Application
    Filed: November 14, 2002
    Publication date: October 23, 2003
    Inventors: Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Helmut Walter, Cyrill Zagar, Matthias Witschel
  • Patent number: 6627581
    Abstract: Cyclopropyl-fused 3-(4,5-dihydroisoxazol-3-yl)-substituted benzoylpyrazoles of the formula I in which the variables are as defined in the description, and their agriculturally useful salts are described. The compounds have herbicidal action.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 30, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Steffen Kudis, Ernst Baumann, Wolfgang von Deyn, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 6613719
    Abstract: 3-(4,5-Dihydroisoxazol-3-yl)-substituted benzoylpyrazoles of the formula I in which R4 is C1-C4-haloalkyl and R1 to R3 and R5 to R10 are as defined in the description are described. The compounds have herbicidal activity.
    Type: Grant
    Filed: May 23, 2002
    Date of Patent: September 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Steffen Kudis, Ernst Baumann, Wolfgang von Deyn, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 6613717
    Abstract: Phosphorus-containing benzoyl derivatives of the formula I where: P(═X)R1R2X is an organic phosphorus radical; R3 is hydrogen, nitro, cyano, halogen, unsub. or sub. alkyl, alkylcarbonyl, alkoxycarbonyl, unsub. or sub. alkoxy, unsub. or sub. alkylthio, unsub. or sub. alkylsulfinyl, unsub. or sub. alkylsulfonyl, unsub. or sub. aminosulfonyl, unsub. or sub. amino, P(═X)R1R2, unsub. or sub. phenyl or unsub. or sub. heterocyclyl; R4 is nitro, cyano, halogen, alkyl, alkoxy, alkylthio, alkylsulfinyl or alkylsulfonyl; l is 0, 1 or 2; Q is unsub. or sub. 1-hydroxy-3-oxocyclohex-1-en-2-yl, unsub. or sub. 5-hydroxypyrazol-4-yl, unsub. or sub. isoxazol-4-yl or unsub. or sub. 2-cyano-1-oxoeth-2-yl; and their agriculturally useful salts; processes and intermediates for preparing the phosphorus-containing benzoyl derivatives; compositions comprising them and the use of these derivatives or the compositions comprising them for controlling undesirable plants are described.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: September 2, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Langemann, Thorsten Volk, Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Martina Otten, Karl-Otto Westphalen, Helmut Walter
  • Publication number: 20030162662
    Abstract: The invention relates to 2-phenyl-2H-pyridazin-3-ones of the general formula I 1
    Type: Application
    Filed: October 10, 2002
    Publication date: August 28, 2003
    Inventors: Michael Puhl, Thorsten Volk, Gerhard Hamprecht, Robert Reinhard, Ingo Sagasser, Cyrill Zagar, Matthias Witschel, Helmut Walter
  • 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
  • Patent number: 6599860
    Abstract: Herbicidally active haloalkyl-substituted 3-(4,5-dihydroisoxazol-3-yl)benzoylcyclohexenones of the formula I in which R1 to R3 and R5 to R14 are as defined in the description and R4 is C1-C4-haloalkyl are described.
    Type: Grant
    Filed: May 16, 2002
    Date of Patent: July 29, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Steffen Kudis, Ernst Baumann, Wolfgang von Deyn, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Karl-Otto Westphalen, Helmut Walter
  • Publication number: 20030130123
    Abstract: The invention relates to 2-phenyl-2H-pyridazin-3-ones of the general formula I 1
    Type: Application
    Filed: October 10, 2002
    Publication date: July 10, 2003
    Inventors: Michael Puhl, Thorsten Volk, Gerhard Hamprecht, Robert Reinhard, Ingo Sagasser, Cyrill Zagar, Karl-Otto Westphalen, Matthias Witschel, Helmut Walter
  • Patent number: 6589915
    Abstract: The invention relates to cyclohexenone derivatives of benzo-condensed, unsaturated 5-ring nitrogen heterocycles of general formula (I) wherein X represents N or a group C—R3, Y represents O, S, SO, SO2 or NR4 or X—Y represent S═N and X represents sulfur, and the variables R1, R2 and Hex have the meanings given in claim 1. The invention also relates to a method for producing these compounds, to agents containing these compounds, and to their use as herbicides.
    Type: Grant
    Filed: November 7, 2001
    Date of Patent: July 8, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Guido Mayer, Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Klaus Langemann, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Michael Rack, Thorsten Volk, Martina Otten, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 6583089
    Abstract: Tricyclic benzoylcyclohexanedione derivatives of the formula I where X, Y, R1, R2, R3, R4, R5, R9, and m are defined herein, and their agriculturally useful salts. Process for preparing the tricyclic benzoylcyclohexanedione derivatives; compositions comprising them and the use of these derivatives or of the compositions comprising them for controlling undesirable plants are described.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: June 24, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Matthias Witschel, Steffen Kudis, Klaus Langemann, Ernst Baumann, Wolfgang von Deyn, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Martina Otten, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 6576596
    Abstract: The invention relates to 2-benzoylcyclohexane-1,3-diones of the formula I where R1, R2 are each hydrogen, nitro, halogen, cyano, thiocyanato, alkyl, haloalkyl, alkoxyalkyl, alkenyl, alkynyl, —OR5, —OCOR6, —OSO2R6, —SH, —S(O)nR7, —SO2OR5, —SO2NR5R8, —NR8SO2R6 or —NR8COR6; R3 is hydrogen, cyano, alkyl, haloalkyl, —OR7, —SR7 or —NR7R10; R4 is hydrogen, substituted or unsubstituted alkyl, cycloalkyl, alkenyl, cycloalkenyl, alkynyl, —COR9, —CO2R9, —COSR9 or —CONR8R9; X is oxygen or NR8; n is 0, 1 or 2; R5 is hydrogen, alkyl, haloalkyl, alkoxyalkyl, alkenyl or alkynyl; R6 is alkyl or haloalkyl; R7 is alkyl, haloalkyl, alkoxyalkyl, alkenyl or alkynyl; R8 is hydrogen or alkyl; R9 is alkyl, alkenyl, alkynyl, phenyl or benzyl; R10 is alkyl, haloalkyl, alkenyl or alkynyl; Q is a cyclohexane-1,3-dione ring with or without substitution attached in position 2; and agriculturally useful salts thereo
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: June 10, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Regina Luise Hill, Uwe Kardorff, Michael Rack, Ernst Baumann, Wolfgang von Deyn, Stefan Engel, Guido Mayer, Martina Otten, Joachim Rheinheimer, Matthias Witschel, Ulf Misslitz, Helmut Walter, Karl-Otto Westphalen
  • Publication number: 20030100590
    Abstract: 1 The invention relates to 3-(4,5-dihydroisoxazole-5-yl)benzoylpyrazole of the formula (I), wherein the variables have the following meanings: R1, R1 represent hydrogen, nitro, halogen, cyano, alkyl, halogenalkyl, alkoxy, halogenalkoxy, alkylthio, halogenalkylthio, alkylsulfinyl, halogenalkylsulfinyl, alkylsulfonyl or halogenalkylsulfonyl; hydrogen, R3 represents halogen or alkyl; R4 represents hydrogen or alkyl; R5, R6 represent hydrogen, halogen, cyano, nitro, alkyl, alkoxy, alkylthio, dialkylamino, phenyl R3 or carbonyl, wherein the latter six groups can be substituted; R7 represents halogen, cyano, hydroxy, alkyl, halogenalkyl, alkoxy, halogenalkoxy, alkylthio, halogenalkylthio, alkylsulfinyl, halogenalkylsulfinyl, alkylsulfonyl, halogenalkylsulfonyl, amino, alkylamino, dialkylamino, dialkoxymethyl, hydroxyiminoalkyl, alkoxyiminoalkyl or optionally substituted carbonyl; R11 represents optionally substituted pyrazole that is bound in the 4 position and that carries a hydroxy group or a derivative the
    Type: Application
    Filed: June 19, 2002
    Publication date: May 29, 2003
    Inventors: Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf neidlein, Helmut Walter, Karl-Otto Westphalen, Matthias Witschel
  • Patent number: 6566307
    Abstract: Pyrazoles of the formula I where: R1 is hydrogen, nitro, halogen, cyano, thiocyanato or an aliphatic radical; R2 is a substituted sulfur, nitrogen or phosphorus atom; R3 is hydrogen, halogen or an aliphatic radical; R4, R5 are hydrogen, nitro, halogen, cyano, thiocyanato, or an aliphatic radical; R6 is hydrogen, halogen, C1-C6-alkyl, C1-C6-alkoxy, C3-C8-cycloalkyl; R7, R8, R9 are hydrogen, C1-C6-alkyl, but at most one of the radicals R7, R8 and R9 is hydrogen; and their tautomers and agriculturally useful salts are described. Moreover, the invention relates to processes for preparing compounds of the formula I, to compositions comprising them and to the use of the compounds of the formula I and of the compositions comprising them for controlling harmful plants.
    Type: Grant
    Filed: January 3, 2002
    Date of Patent: May 20, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Ulf Neidlein, Norbert Götz, Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Roland Götz, Klaus Langemann, Guido Mayer, Ulf Misslitz, Matthias Witschel, Martina Otten, Karl-Otto Westphalen, Helmut Walter
  • Publication number: 20030092576
    Abstract: 3-(4,5-Dihydroisoxazol-3-yl)-substituted benzoylcyclohexenone derivatives of the formula I 1
    Type: Application
    Filed: May 13, 2002
    Publication date: May 15, 2003
    Inventors: Steffen Kudis, Ernst Baumann, Wolfgang Von Deyn, Klaus Langemann, Guido Mayer, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 6559100
    Abstract: Substituted 2-benzoylcyclohexane-1,3-diones of the formula I where: R1 and R2 are each hydrogen, mercapto, nitro, halogen, cyano, thiocyanato, C1-C6-alkyl, C1-C6-haloalkyl, C1-C6-alkoxy, C2-C6-alkenyl, C2-C6-alkynyl, —OR3, —OCOR3, —OSO2R3, —S(O)nR3, —SO2OR3, —SO2N(R3)2, —NR3SO2R3 or —NR3COR3; R3 is hydrogen, C1-C6-alkyl, C1-C6-haloalkyl, C2-C6-alkenyl, C2-C6-alkynyl, phenyl or phenyl-C1-C6-alkyl; where the abovementioned alkyl radicals may be partially or fully halogenated and/or may carry one to three of the following groups: hydroxyl, mercapto, amino, cyano, R3, —OR3, —SR3, —N(R3)2, ═NOR3, —OCOR3, —SCOR3, —NR3COR3, —CO2R3, —COSR3, —CON(R3)2, C1-C4-alkyliminooxy, C1-C4-alkoxyamino, C1-C4-alkylcarbonyl, C1-C4-alkoxy-C2-C6-alkoxycarbonyl, C1-C4-alkylsulfonyl, heterocyclyl, heterocyclyloxy, phenyl, benzyl, hetaryl, phenoxy, benzyloxy and hetaryloxy, where the eight last mentioned radic
    Type: Grant
    Filed: February 7, 2000
    Date of Patent: May 6, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Stefan Engel, Joachim Rheinheimer, Ernst Baumann, Wolfgang von Deyn, Regina Luise Hill, Guido Mayer, Ulf Misslitz, Oliver Wagner, Matthias Witschel, Martina Otten, Helmut Walter, Karl-Otto Westphalen
  • Patent number: 6559343
    Abstract: Process for the preparation of 2,2,4,4-tetrasubstituted 1,3,5-cyclohexanetriones of the formula I, by reaction of a cyclobutane-1,3-dione of the formula II with an O or N nucleophile and a silylating reagent, and subsequent acetylation and cyclization.
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: May 6, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Roland Götz, Norbert Götz, Matthias Witschel, Michael Rack
  • Patent number: 6541423
    Abstract: The invention relates to pyrazolyl derivatives of benzo-condensated, unsaturated 5-membered nitrogen heterocycles of the general formula (I), wherein X represents N or a group C—R3; Y is O, S, SO, SO2 or NR4 or X—Y is S═N, and wherein X means sulfur, and the variables R1, R2 and Pz have the meanings indicated in claim 1. The invention, further relates to a method of producing said compounds, to agents that contain them and to their use as herbicidal agents.
    Type: Grant
    Filed: November 1, 2001
    Date of Patent: April 1, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Guido Mayer, Ernst Baumann, Wolfgang von Deyn, Steffen Kudis, Klaus Langemann, Ulf Misslitz, Ulf Neidlein, Matthias Witschel, Michael Rack, Thorsten Volk, Martina Otten, Karl-Otto Westphalen, Helmut Walter
  • Patent number: 6528455
    Abstract: Phenoxy- and thiophenoxyacrylic acid compounds of the formula I in which Het, R1, R2, R3, V, W and Z are as defined in claim 1 and processes for their preparation, intermediates for their preparation, herbicidally active compositions comprising the compounds of the formula I and a method for controlling harmful fungi are described.
    Type: Grant
    Filed: June 5, 2002
    Date of Patent: March 4, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Michael Puhl, Robert Reinhard, Ingo Sagasser, Cyrill Zagar, Karl-Otto Westphalen, Matthias Witschel, Helmut Walter