Patents by Inventor Udo Kraatz

Udo Kraatz 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: 4999440
    Abstract: Fungicidal hydroxyalkyl-triazdyl derivatives of the formula ##STR1## in which R represents a radical of the formula --CH.sub.2 --CH(CH.sub.3).sub.2, --(CH.sub.2).sub.4 --CH.sub.3, --(CH.sub.2).sub.5 --CH.sub.3, --(CH.sub.2).sub.6 --CH.sub.3, ##STR2## Z represents halogen, alkyl with 1 to 4 carbon atoms, halogenoalkyl with 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenoalkoxy with 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenoalkylthio with 1 or 2 carbon atoms and 1 to 5 halogen atoms, phenyl or alkoximinimethyl with 1 to 4 carbon atoms in the alkoxy group andm represents the numbers 0, 1, 2 or 3,and addition products thereof with acids and metal salts. Intermediates of the formulas ##STR3## are also new.
    Type: Grant
    Filed: August 17, 1989
    Date of Patent: March 12, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Graham Holmwood, Udo Kraatz, Karl H. Buchel, Wilhelm Brandes, Stefan Dutzmann, Paul Reinecke
  • Patent number: 4988383
    Abstract: Fungicidal and plant growth-regulating cyclopropyl-hydroxyethyl-azolyl-derivatives of the formula ##STR1## in which R.sup.1 represents halogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, alkylthio having 1 to 4 carbon atoms, halogenoalkyl having 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenalkoxy having 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenoalkylthio having 1 or 2 carbon atoms and 1 to 5 halogen atoms, alkoximinomethyl having 1 to 4 carbon atoms in the alkoxy group, phenyl optionally substituted by alkyl having 1 to 2 carbon atoms and/or halogen or phenoxy optionally substituted by alkyl having 1 or 2 carbon atoms and/or halogen,m represents the numbers 0, 1, 2 or 3,R.sup.2 represents optionally substituted benzyl or the radical --COOR.sup.3, in whichR.sup.3 represents alkyl, optionally substituted phenyl or optionally substituted benzyl,andY represents oxygen or sulphur,and their acid addition salts and metal salt complexes.
    Type: Grant
    Filed: February 6, 1990
    Date of Patent: January 29, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Jager, Udo Kraatz, Stefan Dutzmann, Wilhelm Brandes, Gerd Hanssler
  • Patent number: 4988734
    Abstract: Highly fungicidal stereoisomers of N-(R)-(1-aryl-ethyl)-1-alkyl-2,2-dichloro-cyclopropanecarboxamides of the formula ##STR1## or a mixture thereof, substantially free of other stereoisomers, in which R.sup.1 stands for optionally branched alkyl having 2 to 4 carbon atoms,R.sup.2 stands for hydrogen, methyl or ethyl and X stands for hydrogen or halogen.Also new are intermediates of the formula ##STR2## or mixtures thereof, substantially free of other stereoisomers, in which R.sup.1 stands for optionally branched alkyl having 2 to 4 carbon atoms.R.sup.2 stands for hydrogen, methyl or ethyl, and Q stands for Cl, OH, or methoxy or ethoxy.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: January 29, 1991
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Gerd Hanssler
  • Patent number: 4978382
    Abstract: A method of combating pests which comprises applying to such pests or to a pest habitat a pesticidally effective amount of a 2-halogenoalkylthio-substituted pyrimidine of the formula ##STR1## in which R.sup.1 represents halogenoalkyl,R represents hydrogen, alkyl, alkylthio, alkoxy, halogenoalkyl, halogenoalkylthio, halogenoalkoxy, optionally substituted aryl or halogen andm represents a number 0, 1, 2 or 3.Those compounds other than 2-(difluoromethylthiomethylthio)-4,6-dimethyl-pyrimidine, 2,4-bis(difluoromethylthio)-6-methylpyrimidine and 4-(difluoromethoxy)-2-(difluoromethylthio(-6-methylpyrimidine are new.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: December 18, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Ernst Kysela, Jurgen Hartwig, Benedikt Becker
  • Patent number: 4950767
    Abstract: A process for the preparation of an optically active proline derivative of the formula ##STR1## in which R.sup.1 is alkyl, phenyl or benzyl, or an acid addition salt thereof, comprising reacting an S-proline ester of the formula ##STR2## in which R.sup.2 is alkyl with 1 to 4 carbon atoms, in a first stage with benzyl chloroformate of the formula ##STR3## in the presence of an acid-binding agent and in the presence of a diluent, thereby to produce an ester with the S-configuration on the asymmetrically substituted carbon atom, of the formula ##STR4## reacting such ester in a second stage with a Grignard compound of the formulaR.sup.1 --Mg Xin which X is chlorine, bromine or iodine, in the presence of a diluent, thereby to produce an S-proline derivative of the formula ##STR5## and reacting such S-proline derivative in a third stage with hydrogen in the presence of a catalyst, a diluent, and optionally an acid. The end product is new.
    Type: Grant
    Filed: October 31, 1988
    Date of Patent: August 21, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventor: Udo Kraatz
  • Patent number: 4904297
    Abstract: Substituted 1-azolyl-but-2-ones and -2-ols of the formula ##STR1## in which B is --CO-- or --CH (OH)--Az represents a 1,2,4-triazol-l-yl or -4-yl or imidazol-l-yl radical,R.sup.1 represents a hydrogen atom, an alkyl, alkenyl, alkinyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted phenoxyalkyl or optionally substituted aralkyl radical,n is 0 or 1,R.sup.2 represents a cyano radical or a grouping of the general formula --X--R.sup.3 or --CO--NR.sup.4 R.sup.5, or, if n does not represent 0 at the same time as R.sup.1 preresents a hydrogen atom and Az represents a 1,2,4-triazolyl radical,R.sup.2 also additionally represents an optionally substituted aryl or alkoxycarbonyl radical,and whereinX represents an oxygen or sulphur atom or an SO or SO.sub.2 group,R.sup.3 represents an alkyl, halogenoalkyl, optionally substituted aryl or optionally substituted aralkyl radical,R.sup.4 represents a hydrogen atom or an alkyl or optionally substituted aryl radical, andR.sup.
    Type: Grant
    Filed: March 18, 1988
    Date of Patent: February 27, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wolfgang Kramer, Karl H. Buchel, Hans-Ludwig Elbe, Udo Kraatz, Erik Regel, Paul-Ernst Frohberger, Wilhelm Brandes, Klaus Lurssen
  • Patent number: 4898875
    Abstract: Novel mercapto-substituted hydroxyethyl-(triazol-l-yl) derivatives of the formula ##STR1## in which Ar represents optionally substituted aryl,X represents oxygen, sulphur, a direct bond or the groupings --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --, --O--CH.sub.2 --, --SCH.sub.2 --, --O--CH.sub.2 --CH.sub.2 --, and --S--CH.sub.2 --CH.sub.2 --, the hetero atom being bonded to the aryl radical if X represents --OCH.sub.2 --, --SCH.sub.2 --, --O--CH.sub.2 --CH.sub.2 -- or --S--CH.sub.2 --CH.sub.2 -- andR represents hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted aralkyl or optionally substituted phenyl, and their acid addition salts and metal salt complexes are very effective as fungicides and parasiticides.
    Type: Grant
    Filed: August 31, 1987
    Date of Patent: February 6, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl H. Buchel, Graham Holmwood, Udo Kraatz, Wolfgang Kramer, Paul Reinecke, Wilhelm Brandes, Wilhelm Stendel
  • Patent number: 4894383
    Abstract: Fungicidal hydroxyalkyl-triazolyl derivatives of the formula ##STR1## in which R represents a radical of the formula --CH.sub.2 --CH(CH.sub.3).sub.2, ##STR2## Z represents halogen, alkyl with 1 to 4 carbon atoms, halogenoalkyl with 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenoalkoxy with 1 or 2 carbon atoms and 1 to 5 halogen atoms, halogenoalkylthio with 1 or 2 carbon atoms and 1 to 5 halogen atoms, phenyl or alkoximinomethyl with 1 to 4 carbon atoms in the alkoxy group andm represents the numbers 0, 1, 2 or 3, and addition products thereof with acids and metal salts. Intermediates of the formulas ##STR3## are also new.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: January 16, 1990
    Assignee: Bayer Aktiengesellschaft
    Inventors: Graham Holmwood, Udo Kraatz, Karl H. Buchel, Wilhelm Brandes, Stefan Dutzmann, Paul Reinecke
  • Patent number: 4876353
    Abstract: A process for the preparation of an optically active 2-hydroxyethyl-azole derivative of the formula ##STR1## in which X represents a nitrogen atom or a CH group, comprising(a) in a first stage, reacting an optically active diol of the formula ##STR2## with a tosyl halide of the formula ##STR3## in which Hal represents chlorine or bromine, in the presence of an acid-binding agent, thereby to produce a tosylate of the formula ##STR4## (b) in a second stage reacting the tosylate with an azole of the formula ##STR5## in the presence of an acid-binding agent.
    Type: Grant
    Filed: January 25, 1988
    Date of Patent: October 24, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventor: Udo Kraatz
  • Patent number: 4808725
    Abstract: A process for the preparation of the (-)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-ene of the formula ##STR1## which comprises reacting the (E)-isomer of 1-cyclohexyl-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pent-1-en-3-one of the formula ##STR2## (a) with boron hydride in the presence of an optically active proline derivative of the formula ##STR3## in which, R.sup.1 is alkyl, phenyl or benzyl, or(b) with a complex borohydride in the presence of an acid addition salt of the optically active proline derivative, in the presence of a diluent at a temperature between about -70.degree. C. and +60.degree. C. The proline derivatives are also new and are produced from S-proline esters. The end product is a known plant growth regulant.
    Type: Grant
    Filed: March 12, 1987
    Date of Patent: February 28, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventor: Udo Kraatz
  • Patent number: 4804766
    Abstract: A process for the preparation of the (-)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-triazol-1-yl)-pent-1-ene of the formula ##STR1## which comprises reacting the (E)-isomer of 1-cyclohexyl-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pent-1-en-3-one of the formula ##STR2## with lithium aluminum hydride in the presence of an inert organic diluent and in the presence of a chiral aminoalcohol at a temperature between -70.degree. C. and +50.degree. C. The (-)-antipode is produced in high selectivity, using (-)-N-methyl-ephedrine.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: February 14, 1989
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Peter Feyen
  • Patent number: 4789746
    Abstract: A process for the preparation of the (+)-antipode of (E)-1-cyclohexyl-4,4-dimethyl-3-hydroxy-2-(1,2,4-tri-azol-1-yl)-pent -1-ene of the formula ##STR1## which comprises reacting the (E)-isomer of 1-cyclohexyl-4,4-dimethyl-2-(1,2,4-triazol-1-yl)-pent-1-en-3-one of the formula ##STR2## with lithium aluminum hydride in the presence of an inert organic diluent and in the presence of a chiral amino alcohol at a temperature between -80.degree. C. and +50.degree. C. The (+)-antipode is produced in high selectivity, using (+)-N-methyl-ephedrine.
    Type: Grant
    Filed: March 3, 1986
    Date of Patent: December 6, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Peter Feyen
  • Patent number: 4783474
    Abstract: Novel halogenoalkyl-, alkenyl- and alkinyl-azoles of the formula ##STR1## in which X represents a nitrogen atom or a CH grouping,R represents optionally substituted tert.-alkyl or optionally substituted cycloalkyl, andA represents one of the groupings --C.tbd.C--, ##STR2## in which R.sup.1 represents halogen, alkoxy or trialkylsilyloxy,R.sup.2 represents hydrogen or halogen, andR.sup.3 represents halogen,and acid and metal salt addition products thereof synergize insecticides and herbicides which function by photosynthesis inhibition.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: November 8, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Wolfgang Behrenz, Carl Fedtke
  • Patent number: 4783538
    Abstract: A process for the preparation of optically active azolylcarbinol derivatives having antimycotic fungicidal and plant growth regulating properties from racemic mixtures thereof. The (-)-enantiomer of 2-(4-chloro-phenoxymethyl)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-2-butanol of the formula ##STR1## is prepared.
    Type: Grant
    Filed: October 25, 1985
    Date of Patent: November 8, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Graham Holmwood, Dieter Berg, Manfred Plempel
  • Patent number: 4742071
    Abstract: 2-Aryl-2-azolylmethyl-1,3-dioxepines of the formula ##STR1## in which Az is imidazol-1-yl or 1,2,4-triazol-1-yl,X is the ethylene or vinylene grouping, andAr is optionally substituted aryl, or addition products thereof with acids or metal salts, which possess fungicidal activity.
    Type: Grant
    Filed: July 25, 1985
    Date of Patent: May 3, 1988
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Gerhard Jager, Karl H. Buchel, Wilhelm Brandes, Paul Reinecke, Hans-Dieter Scharf, Herbert Frauenrath
  • Patent number: 4668660
    Abstract: The invention relates to hydroxyethylazolyl derivatives, defined herein by formula (I) and particularly to the use of said derivatives for the treatment of viral infections.
    Type: Grant
    Filed: April 10, 1984
    Date of Patent: May 26, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Arnold Paessens, Gert Streissle, Manfred Plempel, Karl H. B/u/ chel, Hans-Ludwig Elbe, Graham Holmwood, Udo Kraatz, Erik Regel
  • Patent number: 4659723
    Abstract: Novel substituted azolylalkyl pyridinyl ethers of the formula ##STR1## in which Az represents 1,2,4-triazolyl or imidazolyl,B represents the keto or the CH(OH) group,Y represents halogen, alkyl, alkoxy, alkylthio, alkylsulphonyl, halogenoalkyl, nitro, cyano, alkoxycarbonyl or optionally substituted phenylR represents optionally substituted aryl or the groupings ##STR2## wherein R.sup.1 represents optionally substituted aryl,X.sup.1 represents halogen andX.sup.2 represents hydrogen and halogen, andn represents the numbers 0, 1, 2 and 3,and their acid addition salts and metal salt complexes, are outstandingly effective as fungicides.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: April 21, 1987
    Assignee: Bayer Aktiengesellschaft
    Inventors: Karl H. Buchel, Udo Kraatz, Jorg Stetter, Paul Reinecke, Wilhelm Brandes
  • Patent number: 4631288
    Abstract: Novel triazolylmethyl-pyridyloxymethyl-carbinols of the formula ##STR1## in which R is optionally substituted alkyl, optionally substituted cycloalkyl or optionally substituted phenyl,Y is halogen, alkyl, alkoxy or cyano, andm is 0, 1, 2, 3 or 4,or addition products thereof with acids or metal salts, which possess fungicidal activity.
    Type: Grant
    Filed: September 14, 1984
    Date of Patent: December 23, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Karl H. Buchel, Gerd Hanssler, Wilhelm Brandes, Paul Reinecke
  • Patent number: 4629732
    Abstract: New 3-substituted 1-azolyl-3-methyl-1-phenoxy-butan-2-ones and -ols of the general formula ##STR1## in which Az represents 1,2,4-triazol-1-yl, 1,2,4-triazol-4-yl or imidazol-1-yl,B represents the keto group or the CH(OH) group,Y represents oxygen or sulphur,R represents halogenoalkyl, optionally substituted phenyl or optionally substituted benzyl, or provided Y represents sulphur, may represent alkyl andX.sup.1, X.sup.2 and X.sup.3 are selected independently and each represent hydrogen, halogen, alkyl, halogenoalkyl, alkoxy, alkylthio, alkylsulphonyl, nitro, cyano, alkoxycarbonyl or optionally substituted phenyl,are obtained if halogenoether ketones are reacted with 1,2,4-triazole or imidazole in the presence of a diluent and of an acid-binding agent, and, if appropriate, the keto derivatives thus obtained are reduced.
    Type: Grant
    Filed: April 17, 1984
    Date of Patent: December 16, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Erich Klauke, Gerhard Jager, Karl H. Buchel, Paul-Ernst Frohberger, Wilhelm Brandes
  • Patent number: 4610996
    Abstract: Phenoxytriazolyl ketones and carbinols of the formula ##STR1## in which A represents the keto group or the CH(OH) grouping andR represents hydrogen, alkenyl, alkinyl, halogenoalkyl, halogenoalkenyl, alkylcarbonyl, optionally substituted benzyl or optionally substituted phenoxymethyl,or addition products thereof with acids or metal salts, which possess fungicidal activity.
    Type: Grant
    Filed: April 11, 1984
    Date of Patent: September 9, 1986
    Assignee: Bayer Aktiengesellschaft
    Inventors: Udo Kraatz, Karl H. Buchel, Paul Reinecke, Wilhelm Brandes, Gerd Hanssler