Patents by Inventor Stefan Dutzmann

Stefan Dutzmann 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: 5420160
    Abstract: There are described new 1-alkoxyhexatriene-2-carboxylates of the formula (I) ##STR1## in which R represents substituted phenyl,and a plurality of processes for their preparation.The new 1-alkoxyhexytriene-2-carboxylates are used as pesticides.
    Type: Grant
    Filed: January 21, 1994
    Date of Patent: May 30, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Herbert Gayer, Peter Gerdes, Heinz-Wilhelm Dehne, Stefan Dutzmann
  • Patent number: 5416088
    Type: Grant
    Filed: August 16, 1993
    Date of Patent: May 16, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Heinemann, Heinz-Wilhelm Dehne, Stefan Dutzmann, Christoph Erdelen
  • Patent number: 5412100
    Abstract: Fungicidal substituted acrylic esters of the formula ##STR1## in which R.sup.1 represents hydrogen, alkyl or alkenyl, or represents in each case optionally substituted aralkyl, aralkenyl, aryl or heteroaryl,R.sup.2 represents halogen, cyano, nitro, formyl, halogenoalkyl, alkoxyalkyl or alkylthioalkyl, or represents hydroximinoalkyl, alkoximinoalkyl, N-alkyliminoalkyl, N-aryliminoalkyl or N,N-dialkylhydrazonoalkyl, or represents alkoxy, alkylthio, halogenoalkoxy or halogenoalkylthio, or represents aryloxy or arylthio, or represents alkanoyl, alkoxycarbonyl, N,N-dialkylcarbamoyl or heterocyclylcarbonyl,R.sup.3 represents alkyl, or represents optionally substituted aralkyl,R.sup.4 represents dialkylamino or represents a radical --Z--R.sup.5,X represents oxygen or sulphur andY represents oxygen or sulphur or represents a radical ##STR2## where R.sup.5 represents alkyl or represents optionally substituted aralkyl,R.sup.
    Type: Grant
    Filed: July 1, 1993
    Date of Patent: May 2, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alexander Klausener, Gerd Kleefeld, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
  • Patent number: 5385905
    Abstract: New substituted pyridylpyrimidines of the formula (I) ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 have the meaning given in the description, their preparation, and their use for combating pests.Formula (I) provides a general definition for the new compounds. They can be prepared by analogous processes, for example from suitable pyridylamidine hydrochlorides with suitable enamino ketones.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: January 31, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Heinemann, Thomas Himmler, Stefan Dutzmann, Gerd Hanbler, Heinz-Wilhelm Dehne
  • Patent number: 5380914
    Abstract: Fungicidal new 2-methoximinocarboxylic esters of the general formula (I) ##STR1## in which Ar represents one of the radicals ##STR2## A represents one of the radicals ##STR3## where Y represents one of the radicals ##STR4## n represents the number 0 or 1, R represents alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, or represents optionally substituted cycloalkyl, or represents optionally substituted aryl or represents optionally substituted heteroaryl, and, moreover, in the event that n is 0, also represents halogen, andX.sup.1, X.sup.2, X.sup.3 and X.sup.4 independently of one another in each case represent hydrogen, halogen, hydroxyl or methoxy, but where, in the event that X.sup.2 represents bromine, X.sup.3 does not simultaneously represent hydroxyl or methoxy.
    Type: Grant
    Filed: December 7, 1993
    Date of Patent: January 10, 1995
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Dieter Berg, Heinz-Wilhelm Dehne, Stefan Dutzmann
  • Patent number: 5376660
    Abstract: Fungicidally active compounds of the formula ##STR1## in which X represents oxygen or sulphur,R represents cycloalkyl, or represents optionally substituted aryl, or represents the radical ##STR2## R.sup.1 and R.sup.2 each independently is hydrogen or an organic radical, or together with the nitrogen atom form a heterocyclic radical,R.sup.3 represents hydrogen, alkyl or optionally substituted aryl, andR.sup.4 represents alkyl or cycloalkyl, or represents optionally substituted aryl,but wherein and R.sup.3 and R.sup.4 may not simultaneously represent methyl,and acid addition salts thereof, as well as intermediates therefore.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: December 27, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Joachim Weissmuller, Dieter Berg, Wilhelm Brandes, Stefan Dutzmann
  • Patent number: 5371095
    Abstract: There are described new pyridyl derivatives of the formula (I) ##STR1## in which Ar and A have the meaning given in the description, their preparation, and new intermediates.The new compounds of the formula (I) are used as pesticides.
    Type: Grant
    Filed: May 7, 1993
    Date of Patent: December 6, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter C. Knuppel, Alexander Klausener, Ralf Tiemann, Stefan Dutzmann, Heinz-Wilhelm Dehne, Ulrike Wachendorff-Neumann
  • Patent number: 5371065
    Abstract: Fungicidal and plant growth-regulating substituted azolylmethyloxiranes of the formula ##STR1## in which R.sup.1 stands for alkyl,R.sup.2 stands for alkyl,X stands for a nitrogen atom or the CH group,Y stands (or halogen, alkyl, cycloalkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, optionally substituted phenyl, optionally substituted phenoxy, optionally substituted phenylalkyl and/or optionally substituted phenylalkoxy andm stands for the numbers 0, 1, 2 or 3,and addition products thereof with acids and metal salts.
    Type: Grant
    Filed: February 2, 1989
    Date of Patent: December 6, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ludwig Elbe, Karl H. Buchel, Wilhelm Brandes, Stefan Dutzmann, Klaus Lurssen
  • Patent number: 5356899
    Abstract: Novel substituted hydroxyalkylpyridines of the formula (I), ##STR1## in which x, A and Ar have the meanings given in the description and their acid addition salts and metal salt complexes and their use for combating pests, in particular in the field of plant protection and in the protection of materials.The compounds of the formula (I) may be prepared according to known processes, for example from suitable cyclopropyl ketones and organometallic pyridine compounds.
    Type: Grant
    Filed: August 27, 1993
    Date of Patent: October 18, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ludwig Elbe, Stefan Bohm, Ralf Tiemann, Stefan Dutzmann, Heinz-Wilhelm Dehne
  • Patent number: 5354779
    Abstract: New oxime ether amides of the formula (I) ##STR1## in which R has the meaning given in the description, and a plurality of processes for their preparation were described.The new oxime ether amides are used as pesticides.
    Type: Grant
    Filed: November 30, 1992
    Date of Patent: October 11, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Dieter Berg, Heinz-Wilhelm Dehne, Stefan Dutzmann, Christoph Erdelen
  • Patent number: 5350861
    Abstract: There are provided new substituted 3-aryl-pyrrolidine-2,4-diones of the formula ##STR1## in which X represents hydrogen, alkyl, halogen or alkoxy,Y represents hydrogen, alkyl, halogen, alkoxy or halogenoalkyl,Z represents alkyl, halogen or alkoxy,n represents a number from 0-3,R represents hydrogen or the groups--CO--R.sup.1, --CO--O--R.sup.2in whichR.sup.1 and R.sup.2 have the meanings given in the text of the application,A represents optionally halogen-substituted alkyl, alkenyl, alkinyl, alkoxyalkyl, polyalkoxyalkyl, alkylthioalkyl and cycloalkyl which is optionally interrupted by hetero atoms, or represents arylakyl which is optionally substituted by halogen, alkyl, halogenoalkyl, alkoxy or nitro,B represents optionally substituted aryl or benzyl.The new compounds of the formula (I) have highly pronounced insecticidal, acaricidal, fungicidal and antimycotic properties.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: September 27, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Reiner Fischer, Hermann Uhr, Arno Widdig, Stefan Dutzmann, Christoph Erdelen, Ulrike Wachendorff-Neumann, Klaus Schaller
  • Patent number: 5334608
    Abstract: New azolylmethyl-cyclopropyl derivatives of the formula ##STR1## in which R represents cyano or a group of the formula ##STR2## Z represents halogen, alkyl having 1 to 4 carbon atoms, halogenoalkyl having 1 to 4 carbon atoms and 1 to 5 halogen atoms, alkoxy having 1 to 4 carbon atoms, halogenoalkoxy having 1 to 4 carbon atoms and 1 to 5 halogen atoms, or alkoximininoalkyl having 1 to 4 carbon atoms in the alkoxy group and 1 to 4 carbon atoms in the alkyl group andm represents the numbers 0, 1 or 2, and addition products thereof with acids or metal salts are very effective for combating fungi.New oxiranes of the formula ##STR3## in which Z and m have the abovementioned meanings, are valuable intermediates for the preparation of compounds of the formula (I).
    Type: Grant
    Filed: February 23, 1993
    Date of Patent: August 2, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Scherkenbeck, Thomas Himmler, Hermann Hagemann, Stefan Dutzmann, Heinz-Wilhelm Dehne, Gerd Hanssler
  • Patent number: 5322949
    Abstract: Fungicidal thiadiazole-substituted acrylic acid esters of the formula ##STR1## in which R.sup.1 represents hydrogen, unsubstituted or substituted alkyl or alkenyl, or in each case unsubstituted or substituted aralkyl, aralkenyl, aryl or heteroaryl,R.sup.2 represents alkyl,R.sup.3 represents dialkylamino or a radical --Z--R.sup.4,Y represents oxygen, sulphur or a radical ##STR2## R.sup.4 represents alkyl or unsubstituted or substituted aralkyl, R.sup.5 represents hydrogen or alkyl andZ represents oxygen or sulphur.
    Type: Grant
    Filed: October 6, 1992
    Date of Patent: June 21, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Ulrich Heinemann, Gerd Kleefeld, Stefan Dutzmann, Gerd Hanssler
  • Patent number: 5312960
    Abstract: Fungicidal new 2-methoximinocarboxylic esters of the general formula (I) ##STR1## in which Ar represents one of the radicals ##STR2## A represents one of the radicals --CH.sub.2 --; ##STR3## where Y represents one of the radicals ##STR4## --SO.sub.2 --CH.sub.2 --; --O--; --CH.dbd.CH-- or --CH.sub.2 --CH.sub.2 --,n represents the number 0 or 1,R represents alkyl, halogenoalkyl, alkenyl, halogenoalkenyl, or represents optionally substituted cycloalkyl, or represents optionally substituted aryl or represents optionally substituted heteroaryl, and, moreover, in the event that n is 0, also represents halogen, andX.sup.1, X.sup.2, X.sup.3 and X.sup.4 independently of one another in each case represent hydrogen, halogen, hydroxyl or methoxy, but where, in the event that X.sup.2 represents bromine, X.sup.3 does not simultaneously represent hydroxyl or methoxy.
    Type: Grant
    Filed: June 4, 1991
    Date of Patent: May 17, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Dieter Berg, Heinz-Wilhelm Dehne, Stefan Dutzmann
  • Patent number: 5310919
    Abstract: Fungicidal pyridyl-substituted acrylic esters of the formula ##STR1## in which R.sup.1 represents alkyl or represents optionally substituted aralkyl,R.sup.2 represents dialkylanino or represents a radical --Z--R.sup.3,X represents oxygen or sulphur or represents a radical ##STR2## and Py represents optionally substituted pyridyl, whereR.sup.3 represents alkyl or represents optionally substituted aralkyl,R.sup.4 represents hydrogen, alkyl or alkanoyl or represents in each case optionally substituted aralkyl or aryl andZ represents oxygen or sulphur, their geometric isomers and isomer mixtures.
    Type: Grant
    Filed: January 31, 1992
    Date of Patent: May 10, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alexander Klausener, Gerd Kleefeld, Dieter Berg, Stefan Dutzmann, Gerd Hanssler
  • Patent number: 5304568
    Abstract: New ethyl-triazolyl derivatives of the formula ##STR1## in which R represents halogen,X.sup.1 represents fluorine, chlorine or bromine,X.sup.2 represents fluorine, chlorine or bromine,Z represents halogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, ethyl having 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenoalkoxy having 1 or 2 carbon atoms and 1 to 5 halogen atoms, phenyl, phenoxy, nitro or alkoximinoalkyl having 1 to 4 carbon atoms in the alkoxy moiety and 1 to 4 carbon atoms in the alkyl moiety andm represents the numbers 0, 1, 2 or 3,and addition products thereof with acids or metal salts are very effective for combating fungi.Novel ethyl-triazolyl derivatives of the formula ##STR2## in which R, Z and m have the abovementioned meanings,and addition products thereof with acids or metal salts are very effective for combating fungi.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: April 19, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Scherkenbeck, Michael Lindemann, Stefan Dutzmann, Heinz-Wilhelm Dehne
  • Patent number: 5292889
    Abstract: Fungicidal and insecticidal substituted-heteroycylacrylic esters of the formula ##STR1## in which R.sup.1 represents alkyl, or represents unsubstituted- or substituted aralkyl,R.sup.2a represents hydrogen, dialkylamino, alkoxy or alkylthio, or represents in each case unsubstituted or substituted aralkyloxy or arylalkylthio, andR.sup.
    Type: Grant
    Filed: June 9, 1992
    Date of Patent: March 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Alexander Klausener, Dieter Berg, Thomas Seitz, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler, Ulrike Wachendorff-Neumann
  • Patent number: 5288883
    Abstract: Fungicidal azolyl-propanols of the formula ##STR1## in which R represents halogenoalkyl, halogenoalkenyl, a 2-phenoxy-isopropyl radical, ##STR2## Y represents nitrogen or a CH group, Z represents halogen, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, cyano, phenoxy, halophenoxy, or optionally substituted aryl,m represents the number 0, 1, 2, or 3,and addition products thereof with acids and metal salts.
    Type: Grant
    Filed: December 28, 1992
    Date of Patent: February 22, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Jurgen Scherkenbeck, Thomas Himmler, Klaus Stroech, Stefan Dutzmann, Gerd Hanssler, Heinz-Wilhelm Dehne
  • Patent number: 5284946
    Abstract: There are described new triazinyl-substituted acrylic esters of the formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, X and Y have the meaning given in the description, and a process for their preparation.The new acrylic esters of the formula (I) are used for the preparation of pesticides.
    Type: Grant
    Filed: March 11, 1993
    Date of Patent: February 8, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Peter C. Knuppel, Dieter Berg, Stefan Dutzmann, Heinz-Wilhelm Dehne, Gerd Hanssler
  • Patent number: 5278179
    Abstract: Substituted oxazolidinones, some of which are known, of the formula (I) ##STR1## in which R.sup.1 to R.sup.4 have the meanings given in the description, are used for combating pests.The new compounds and those which are known can be prepared by analogous processes by reacting suitable substituted isocyanates with suitable oxiranes or by oxidising suitable oxazolidinones.
    Type: Grant
    Filed: June 5, 1992
    Date of Patent: January 11, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ludwig Elbe, Stefan Bohm, Dieter Berg, Heinz-Wilhelm Dehne, Stefan Dutzmann