Patents Represented by Attorney, Agent or Law Firm Carol Marmo
  • Patent number: 6184412
    Abstract: The present invention provides a process for making N-alkoxy(or aryloxy)carbonyl isothiocyanate derivatives by reacting a chloroformate with a thiocyanate, in the presence of an aqueous solvent and a catalytic amount of a N,N-dialkylarylamine, to produce a N-alkoxy(or aryloxy)carbonyl isothiocyanate intermediate product, wherein the intermediate product is converted to a N-alkoxy(or aryloxy)carbonyl isothiocyanate derivative in high yield and purity.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: February 6, 2001
    Assignee: Bayer Corporation
    Inventors: Shekhar V. Kulkarni, Vijay C. Desai
  • Patent number: 6172225
    Abstract: The invention relates to a novel process for producing thereof hydroxyarenes of the general formula (I) in which n represents the numbers 1, 2, 3 or 4, R represents cyano, carboxyl, formyl, nitro, halogen or represents alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylcarbonyl or alkoxycarbonyl, each of which is optionally substituted, and Z represents hydrogen, cyano, nitro, halogen, alkyl, halogenoalkyl, or represents monocyclic or bicyclic, saturated or unsaturated heterocyclyl, heterocyclylamino or heterocyclylimino, each of which is optionally substituted, characterized in that halogenoarenes of the general formula (II) in which n, R and Z are each as defined above and X represents halogen are reacted with 3-hydroxy-propionitrile of the formula (III), HO—CH2CH2—CN  (III), if appropriate in the presence of a reaction auxiliary and if appropriate in the presence of a diluent, at temperatures between 0° C. and 100° C.
    Type: Grant
    Filed: November 12, 1998
    Date of Patent: January 9, 2001
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl-Heinz Linker, Wilhelm Haas, Otto Schallner, Kurt Findeisen, Roland Andree, Mark Wilhelm Drewes
  • Patent number: 6140358
    Abstract: The present invention relates to novel compounds of the formula (I) ##STR1## in which Het represents one of the groups ##STR2## in which A, B, D, G, V, W, X, Y and Z are as defined in the description,processes and intermediates for their preparation, and to their use as pesticides and herbicides.
    Type: Grant
    Filed: September 29, 1998
    Date of Patent: October 31, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Volker Lieb, Hermann Hagemann, Arno Widdig, Michael Ruther, Reiner Fischer, Thomas Bretschneider, Christoph Erdelen, Ulrike Wachendorff-Neumann, Alan Graff, Udo Schneider
  • Patent number: 6133296
    Abstract: The invention relates to new pyridyl-substituted cyclic ketoenols of the formula (I) ##STR1## in which V.sup.1, V.sup.2 or V.sup.3 represents nitrogen,Het represents one of the groups ##STR2## A, B, G, W, Z and z have the meanings given in the description, to a plurality of processes and intermediates for their preparation, and to their use as pesticides and herbicides.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: October 17, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Folker Lieb, Hermann Hagemann, Arno Widdig, Michael Ruther, Reiner Fischer, Thomas Bretschneider, Christoph Erdelen, Ulrike Wachendorff-Neumann, Alan Graff, Peter Dahmen, Markus Dollinger, Bernd Gallenkamp
  • Patent number: 6127566
    Abstract: The present invention provides a continuous process for making O,O-dimethyl phosphoroamidothioate. In accordance with this process, O,O-dimethyl phosphorochloridothioate is reacted with ammonia and sodium hydroxide; addition of the sodium hydroxide controls the pH of the reaction mixture. The formed reaction mixture contains an aqueous phase and an organic phase. The organic phase of the reaction mixture is separated from the aqueous phase; a second organic phase is solvent extracted from the aqueous phase; and the resultant O,O-dimethyl phosphoroamidothioate is isolated from the combined organic phases via vacuum solvent stripping. In an embodiment of the present invention, the reaction of O,O-dimethyl phosphorochloridothioate with ammonia and sodium hydroxide is carried out in the presence of a solvent.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: October 3, 2000
    Assignee: Bayer Corporation
    Inventors: Vidyanatha A. Prasad, Donald K. Smith, David L. Meyer, Jonathan D. Spicher, Scott P. Hensley
  • Patent number: 6114539
    Abstract: The present invention provides mercapto-imidazolyl compounds, and the acid addition salts and metal salt complexes thereof; a process for their preparation; and a method for their use as microbicides.
    Type: Grant
    Filed: November 17, 1998
    Date of Patent: September 5, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Jautelat, Ralf Tiemann, Stefan Dutzmann, Klaus Stenzel
  • Patent number: 6114362
    Abstract: Compositions which contain compounds of the general formula (I) ##STR1## in which X represents .dbd.CH-- or .dbd.N--,E represents an electron-withdrawing radical,R represents optionally substituted hetarylalkyl,A represents hydrogen, alkyl, or a bifunctional group which is linked to the radical Z,Z represents alkyl, --NH--alkyl, --N(alkyl).sub.2 or a bifunctional group which is linked to the radical A,in mixtures with fungicidal active compounds, excluding cyclopropylcarboxamide derivatives and azolylmethylcycloalkanes. These compositions are useful to control fungi and insects.
    Type: Grant
    Filed: January 17, 1997
    Date of Patent: September 5, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Stefan Dutzmann, Christoph Erdelen, Wolfram Andersch, Heinz-Wilhelm Dehne, Jurgen Hartwig, Klaus Stenzel, Wolfgang Kramer
  • Patent number: 6114368
    Abstract: The present invention provides the composition for novel triazolyl disulphides, the acid addition salts and metal salt complexes of the triazolyl disulphides, a process for their preparation, and a method for their use as microbicides.
    Type: Grant
    Filed: November 5, 1998
    Date of Patent: September 5, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Jautelat, Stefan Dutzmann, Klaus Stenzel
  • Patent number: 6107336
    Abstract: The invention concerns novel dihydrofuran carboxamides of formula (I), ##STR1## in which R stands for groups of formulae (a), (b) or (c), ##STR2## in which R.sup.1, R.sup.2, R.sup.3, X, m, n and p have the meanings given in the description. The invention also concerns a process for preparing the novel substances, and their use for combating undesirable micro-organisms for plant- and material-protection purposes.
    Type: Grant
    Filed: January 20, 1999
    Date of Patent: August 22, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hans-Ludwig Elbe, Franz Kunisch, Dietmar Bielefeldt, Ralf Tiemann, Klaus Stenzel, Stefan Dutzmann, Martin Kugler, Heinrich Schrage
  • Patent number: 6107252
    Abstract: The invention relates to novel substituted phenyluracils of the general formula (I) ##STR1## in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 are each as defined in the description, to a process for preparing the novel substances and to their use as herbicides. Furthermore, the invention relates to novel substituted chlorophenyluracils of the formula ##STR2## in which R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each as defined in the description, and to a process for preparing these substances.
    Type: Grant
    Filed: October 23, 1998
    Date of Patent: August 22, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Roland Andree, Mark Wilhelm Drewes, Markus Dollinger
  • Patent number: 6103252
    Abstract: The present invention relates to a stable azinphos-methyl wettable powder formulation. The composition of the present invention contains an insecticide powder formulation and a magnesium sulfate heptahydrate. The magnesium sulfate heptahydrate is added to the azinphos-methyl formulation in an amount such that the magnesium sulfate heptahydrate is from about 5% by weight to about 20% by weight of the total mixture. The addition of the magnesium sulfate heptahydrate reduces deflagration of the azinphos-methyl formulation and reduces the tendency of exothermic decomposition to occur.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: August 15, 2000
    Assignee: Bayer Corporation
    Inventors: Alan K. Viets, Stephen W. Cohoon
  • Patent number: 6103726
    Abstract: Pyrrolopyrimidines of formula (I) in which R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and A have the meanings given in the description, and their acid-addition salts and metal salt complexes are very highly suitable for combatting vegetable and animal pests.Novel pyrrolopyrimidines of formula (Ia) in which R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10 and Z have the meanings given in the description, and their acid-addition salts and metal salt complexes, and a process for their production.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: August 15, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Dietmar Kuhnt, Klaus-Gunther Tietjen, Hermann Uhr, Robert Markert, Ralf Tiemann, Klaus Stenzel, Stefan Dutzmann, Christoph Erdelen, Ulrike Wachendorff-Neumann
  • Patent number: 6096751
    Abstract: The present invention relates to new substituted 1, 2, 3, 4-tetrahydro-5-nitro-pyrimidines of the formula (I) ##STR1## wherein Het, R.sup.1, R.sup.2, R.sup.3 and A are as defined herein,to processes for their preparation, and to their use as pesticides and ectoparasiticides.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: August 1, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Bernd-Wieland Kruger, Hermann Uhr, Johannes Kanellakopulos, Ernst-Rudolf Gesing, Hilmar Wolf, Andreas Turberg, Norbert Mencke, Christoph Erdelen, Ulrike Wachendorff-Neumann, Jurgen Hartwig
  • Patent number: 6080775
    Abstract: The present invention relates to novel sulphonyl-mercapto-triazolyl derivatives, their acid addition salts and metal salt complexes; a process for the preparation of the novel compounds; and a method for their use as microbicides.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: June 27, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Manfred Jautelat, Stefan Dutzmann, Klaus Stenzel
  • Patent number: 6075019
    Abstract: The invention relates to novel S-aryl-dithiazine dioxides, to processes for their preparation and to the use in crop protection and in the protection of materials.
    Type: Grant
    Filed: June 23, 1999
    Date of Patent: June 13, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Hermann Uhr, Martin Kugler, Peter Wachtler
  • Patent number: 6075157
    Abstract: The present invention provides a method for making O,S-dimethyl phosphoramidothioate. In accordance with this process, O,O-dimethyl phosphoramidothioate is isomerized in the presence of dimethyl sulfate to form a reaction mixture; the reaction mixture is then passed through a wiped film evaporator at a temperature of from about 55.degree. C. to about 120.degree. C. and a pressure of from about 3 to about 10 mm Hg, with the distillate containing O,S-dimethyl phosphoramidothioate, unreacted O,O-dimethyl phosphoramidothioate and by-products, and the residue containing O,S-dimethyl phosphoramidothioate in an amount greater than the amount of O,S-dimethyl phosphoramidothioate contained in the reaction mixture prior to distillation.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: June 13, 2000
    Assignee: Bayer Corporation
    Inventors: Vidyanatha A. Prasad, Klaus Jelich
  • Patent number: 6074987
    Abstract: The present invention provides a composition for inhibiting phase separation and the resulting non-uniform distribution of an active ingredient in low viscosity, water-based pesticide suspensions. In accordance with this invention, the composition comprises from about 0.003% to about 50% by weight of a pesticide, from about 0.5% to about 10% by weight of a wetting agent; from about 0.0% to about 0.8% by weight of a thickener; from about 0.1% to about 0.5% of an antimicrobial agent; from about 5% to about 20% of an anti-freeze; from about 1% to about 8% of a hydrophobic fumed silica; and from about 40% to about 95% of water. In an embodiment of the invention, the hydrophobic fumed silica results from a hydrophilic silica which is treated with dimethyldichlorosilane.
    Type: Grant
    Filed: January 11, 1999
    Date of Patent: June 13, 2000
    Assignee: Bayer Corporation
    Inventors: James G. Shafer, Darrell C. Hudson
  • Patent number: 6071858
    Abstract: The present invention relates to a dry composition that can be used as a herbicide. The composition contains N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadia zol-2-yl]oxy]acetamide, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one, and a pH adjusting agent. The pH adjusting agent is present in an amount such that it constitutes from about 0.1% to about 10% of the composition, and the resulting pH is from about 2.8 to about 5.4. The molar ratio of 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5-(4H)-one to N-(4-fluorophenyl)-N-(1-methylethyl)-2-[[5-(trifluoromethyl)-1,3,4-thiadia zol-2-yl]oxy]acetamide in the composition is from about 1:1 to about 1:6.
    Type: Grant
    Filed: October 1, 1998
    Date of Patent: June 6, 2000
    Assignee: Bayer Corporation
    Inventors: Thomas F. Modrcin, Vijay C. Desai, Peter E. Newallis, Klaus Jelich, John W. Brandriff, Dennis E. Jackman
  • Patent number: 6066754
    Abstract: The present invention provides a process for making N-alkoxy(or aryloxy)carbonyl isothiocyanate derivatives by reacting a chloroformate with a thiocyanate, in the presence of an organic solvent and a catalytic amount of a N,N-dialkylarylamine, to produce a N-alkoxy(or aryloxy)carbonyl isothiocyanate intermediate product, wherein the intermediate product is converted to a N-alkoxy(or aryloxy)carbonyl isothiocyanate derivative in high yield and purity.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 23, 2000
    Assignee: Bayer Corporation
    Inventor: Shekhar V. Kulkarni
  • Patent number: 6060489
    Abstract: The present invention relates to insecticidal mixtures of chloronicotinyl insecticides of the formula (I) ##STR1## in which R.sup.1 represents C.sub.1 -C.sub.5 -alkyl,R.sup.2 represents hydrogen or C.sub.1 -C.sub.5 -alkylorR.sup.1 and R.sup.2 together represent --CH.sub.2 --CH.sub.2 --; --CH.sub.2 --CH.sub.2 --CH.sub.2 -- or ##STR2## X represents an NH group, NCH.sub.3 group or represents sulphur, Y represents nitrogen or a CH group andZ represents cyano or nitro,with one or more of the synergists mentioned in the description.
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: May 9, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Christoph Erdelen, Wolfgang Kramer, Kai-Uwe Bruggen