Patents by Inventor Klaus Stroech
Klaus Stroech 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).
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Patent number: 7227042Abstract: The present invention provides a method of preparing 1-acetyl-1-chlorocyclopropane from 1,3 dichloro-2-pentanone by reaction with base in the presence of a phase transfer catalyst. The reaction may be run in the presence or absence of an organic solvent and in a continuous or batch process.Type: GrantFiled: April 6, 2004Date of Patent: June 5, 2007Assignees: Bayer CropScience LP, Bayer CropScience AktiengesellschaftInventors: Joe J. Hanson, David M. Mayes, Klaus Stroech, Shekhar V. Kulkarni
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Publication number: 20050222451Abstract: The present invention provides a method of preparing 1-acetyl-1-chlorocyclopropane from 1,3 dichloro-2-pentanone by reaction with base in the presence of a phase transfer catalyst. The reaction may be run in the presence or absence of an organic solvent and in a continuous or batch process.Type: ApplicationFiled: April 6, 2004Publication date: October 6, 2005Inventors: Joe Hanson, David Mayes, Klaus Stroech, Shekhar Kulkarni
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Patent number: 5530149Abstract: New azolylmethyl-fluorocyclopropyl derivatives of the formula ##STR1## in which R represents ##STR2## and addition products thereof which acids or metal salts are very effective for combating fungi.New oxiranes of the formula ##STR3## in which R has the abovementioned meaning, are valuable intermediates for the preparation of compounds of the formula (I).Type: GrantFiled: June 5, 1995Date of Patent: June 25, 1996Assignee: Bayer AktiengesellschaftInventors: Jurgen Scherkenbeck, Thomas Himmler, Stefan Bohm, Hermann Hagemann, Klaus Stroech, Stefan Dutzmann, Heinz-Wilhelm Dehne, Gerd Hanssler
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Patent number: 5462955Abstract: New azolylmethyl-fluorocyclopropyl derivatives of the formula ##STR1## in which R represents ##STR2## and addition products thereof which acids or metal salts are very effective for combating fungi.New oxiranes of the formula ##STR3## in which R has the abovementioned meaning, are valuable intermediates for the preparation of compounds of the formula (I).Type: GrantFiled: February 15, 1994Date of Patent: October 31, 1995Assignee: Bayer AktiengesellschaftInventors: Jurgen Scherkenbeck, Thomas Himmler, Stefan Bohm, Hermann Hagemann, Klaus Stroech, Stefan Dutzmann, Heinz-Wilhelm Dehne, Gerd Hanssler
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Patent number: 5288883Abstract: 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: GrantFiled: December 28, 1992Date of Patent: February 22, 1994Assignee: Bayer AktiengesellschaftInventors: Jurgen Scherkenbeck, Thomas Himmler, Klaus Stroech, Stefan Dutzmann, Gerd Hanssler, Heinz-Wilhelm Dehne
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Patent number: 5262434Abstract: New halogenoalkyl-azolyl derivatives of the formula ##STR1## in which R.sup.1 represents optionally substituted phenyl,R.sup.2 represents hydrogen, alkyl, alkenyl, acyl or aralkyl,X.sup.1 represents halogen,X.sup.2 represents halogen,n represents 0 or 1 andY represents nitrogen or a CH groupand their acid addition salts and metal salt complexes, are outstandingly effective as microbicides in plant protection and in the preservation of materials.Type: GrantFiled: August 14, 1992Date of Patent: November 16, 1993Assignee: Bayer AktiengesellschaftInventors: Manfred Jautelat, Jurgen Scherkenbeck, Klaus Stroech, Stefan Dutzmann, Heinz Dehne, Gerd Haenssler, Karl-Heinz Kuck
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Patent number: 5218002Abstract: Insect- and mite-repelling new morpholinoureas of the formula (I) ##STR1## in which the radicals R.sup.1 to R.sup.8 can be identical or different and represent hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted cycloalkyl or optionally substituted phenyl, or where the radicals R.sup.1 and R.sup.4 and/or R.sup.5 and R.sup.8 in each case together form a carbocyclic ring,R.sup.9 represents optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkynyl, optionally substituted cycloalkyl or optionally substituted benzyl, andR.sup.10 represents hydrogen, optionally substituted alkyl, optionally substituted alkenyl, optionally substituted benzyl or optionally substituted cycloalkyl,or where R.sup.9 and R.sup.10 together represent an optionally substituted polyalkylene radical which is optionally interrupted by hetero atoms.Type: GrantFiled: May 28, 1991Date of Patent: June 8, 1993Assignee: Bayer AktiengesellschaftInventors: Klaus Stroech, Bernd-Wieland Kruger, Peter Hoever, Gunther Nentwig
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Patent number: 5216006Abstract: 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, halo-phenoxy, or optionally substituted aryl,m represents the number 0, 1, 2, or 3, and addition products thereof with acids and metal salts.Type: GrantFiled: June 3, 1991Date of Patent: June 1, 1993Assignee: Bayer AktiengesellschaftInventors: Je,uml/u/ rgen Scherkenbeck, Thomas Himmler, Klaus Stroech, Stefan Dutzmann, Gerd Hanssler, Heinz-Wilhelm Dehne
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Patent number: 5216180Abstract: A herbicidal hydroxyethyl-cyclopropyl-azolyl derivative of the formula ##STR1## in which R.sup.1 represents halogen, phenyl or the grouping --Z-R.sup.3, whereinZ represents oxygen, sulphur, SO or SO.sub.2 andR.sup.3 represents alkyl, phenyl or benzyl,R.sup.2 represents alkenyl, optionally substituted furyl, optionally substituted thienyl or the radical of the formula ##STR2## wherein R.sup.4 represents difluoromethoxy, 1,1,2,2-tetrafluoroethoxy, 1,1,2-trifluoro-2-chloro-ethoxy, cyano, formyl, alkoximinoalkyl, carbalkoxy, dialkoxyalkyl, phenoxyalkyl which is optionally substituted in the phenyl moiety by halogen, or benzyloxy which is optionally substituted in the phenyl moiety by halogen andR.sup.5 represents hydrogen or halogen, orR.sup.4 and R.sup.5 are linked in the ortho-position and together represent --O--CH.sub.2 --O--, orR.sup.2 represents the radical of the formula ##STR3## in which R.sup.6 represents difluoromethoxy, 1,1,2,2-tetrafluoroethoxy or 1,1,2-trifluoro-2-chloro-ethoxy, orR.sup.Type: GrantFiled: November 1, 1991Date of Patent: June 1, 1993Assignee: Bayer AktiengesellschaftInventors: Jurgen Scherkenbeck, Monika Frie, Klaus Stroech, Thomas Himmler, Georg-W. Ludwig, Wilhelm Brandes, Stefan Dutzmann
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Patent number: 5194636Abstract: In the preparation of benzyl ketones of the formula ##STR1## a benzyl chloride of the formula ##STR2## is reacted with an acid chloride of the formulaR.sup.6 --CO--Cl (III)a) in a first stage with an excess of zinc powder in the presence of a diluent at a temperature between 80.degree. C. and 200.degree. C. under an inert gas atmosphere, and separating off the excess zinc powder, thereby to obtain a benzyl derivative of the formula ##STR3## and b) in a second stage reacting the benzyl derivative of the formula (IV) with an acid chloride of the formula (III) in the presence of a palladium catalyst and in the presence of a diluent at a temperature between 0.degree. C. and 150.degree. C. under an inert gas atmosphere.Type: GrantFiled: March 3, 1992Date of Patent: March 16, 1993Assignee: Bayer AktiengesellschaftInventors: Thomas Himmler, Udo Kraatz, Wolfgang Kramer, Klaus Stroech
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Patent number: 5162355Abstract: Fungicidal 1,2,4-triazolyl-propanols of the formula ##STR1## in which R represents methyl or ethyl,Z represents fluorine, chlorine, trifluoromethyl, trifluoromethoxy, trifluoromethylthio, methyl, phenyl which is optionally substituted by fluorine or chlorine or phenoxy which is optionally substituted by fluorine or chlorine,m represents 0, 1, 2 or 3 andn represents 4 or 5,and addition products thereof with acids and metal salts.Type: GrantFiled: February 21, 1991Date of Patent: November 10, 1992Assignee: Bayer AktiengesellschaftInventors: Klaus Stroech, Manfred Jautelat, Heinz-Wilhelm Dehne, Stefan Dutzmann, Gerd Hanssler
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Patent number: 5162358Abstract: New halogenoalkyl-azolyl derivatives of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, optionally substituted alkenyl or optionally substituted cycloalkyl,R.sup.2 represents hydrogen, alkyl, alkenyl, acyl or aralkyl,X.sup.1 represents halogen,X.sup.2 represents halogen,n represents 0 or 1 andY represents nitrogen or a CH group,and acid addition salts and metal salt complexes thereofare very effective for combating undesired microorganisms in plant protection and in the preservation of materials.Type: GrantFiled: July 30, 1991Date of Patent: November 10, 1992Assignee: Bayer AktiengesellschaftInventors: Manfred Jautelat, Jurgen Scherkenbeck, Klaus Stroech, Stefan Dutzmann, Heinz-Wilhelm Dehne, Gerd Hanssler, Harl-Heinz Kuck
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Patent number: 5146001Abstract: In the preparation of benzyl ketones of the formula ##STR1## a benzyl chloride of the formula ##STR2## is reacted with an acid chloride of the formulaR.sup.6 --CO--Cl (III)a) in a first stage with an excess of zinc powder in the presence of a diluent at a temperature between 80.degree. C. and 200.degree. C. under an inert gas atmosphere, and separating off the excess zinc powder, thereby to obtain a benzyl derivative of the formula ##STR3## and b) in a second stage reacting the benzyl derivative of the formual (IV) with an acid chloride of the formula (III) in the presence of a palladium catalyst and in the presence of a diluent at a temperature between 0.degree. C. and 150.degree. C. under an inert gas atmosphere.Type: GrantFiled: June 3, 1991Date of Patent: September 8, 1992Assignee: Bayer AktiengesellschaftInventors: Thomas Himmler, Udo Kraatz, Wolfgang Kramer, Klaus Stroech
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Patent number: 5143932Abstract: Microbicidal halogenoallyl-azolyl derivatives of the formula ##STR1## in which R.sup.1 represents a radical of the formula ##STR2## R.sup.2 represents hydrogen, alkyl, alkenyl, acyl or aralkyl, X.sup.1 represents halogen,X.sup.2 represents halogen,X.sup.3 represents hydrogen or halogen andY represents nitrogen or a CH group,and addition products thereof with acids and metal salts.Type: GrantFiled: January 25, 1991Date of Patent: September 1, 1992Assignee: Bayer AktiengesellschaftInventors: Manfred Jautelat, Klaus Stroech, Gerd Hanssler, Stefan Dutzmann, Karl-Heinz Kuck, Wilhelm Brandes
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Patent number: 5140035Abstract: Fungicidal triazolylmethyl-cyclopropyl derivatives of the formula ##STR1## in which R represents a radical of the formula ##STR2## in which Z 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, halogenoalkoxy 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, phenyl which is optionally substituted by at least one of alkyl having 1 or 2 carbon atoms and halogen, or represents phenoxy which is optionally substituted by at least one of alkyl having 1 or 2 carbon atoms and halogen, andm represents the numbers 0, 1, 2 or 3,R.sup.1 represents halogen, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms,n represents the numbers 0, 1 or 2,R.sup.Type: GrantFiled: December 17, 1990Date of Patent: August 18, 1992Assignee: Bayer AktiengesellschaftInventors: Jurgen Scherkenbeck, Klaus Stroech, Burghard Fugmann, Stefan Dutzmann
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Patent number: 5126359Abstract: Antimycotically active azolyl-cyclopropyl-azolylmethylcarbinol compound of the formula ##STR1## in which R.sup.1 - represents hydrogen, or alkyl which is optionally substituted by optionally substituted aryl or- represents alkenyl or alkynyl or trialkylsilyl or alkylcarbonyl,R.sup.2 - represents optionally substituted aryl or- represents an optionally substituted 5- to 6-membered heterocycle which may contain one or more heteroatoms such as sulphur, oxygen or nitrogen,X - represents halogen, andY - represents a nitrogen atom or the CH group, and their acid addition salts.Type: GrantFiled: October 17, 1989Date of Patent: June 30, 1992Assignee: Bayer AktiengesellschaftInventors: Klaus Stroech, Susanne Backens-Hammerschmidt, Manfred Plempel
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Patent number: 5122532Abstract: A microbicidal halogenoallyl-azolyl derivatives of the formula ##STR1## in which R.sup.1 represents halogenoallyl, propargyl, substituted cycloalkyl or optionally substituted heteroaryl, or represents a radical of the formula ##STR2## where R.sup.3 represents hydrogen, halogen, or phenyl which is optionally substituted by halogen, phenoxy which is optionally substituted by halogen or phenoxymethyl which is optionally substituted by halogen,R.sup.4 represents hydrogen or halogen, andR.sup.5 represents iso-propyl, or phenyl which is optionally substituted by halogen or phenoxy which is optionally substituted by halogen or phenoxy which is optionally substituted by halogen,R.sup.2 represents hydrogen, alkyl, alkenyl, acyl or aralkyl,X.sup.1 represents halogen,X.sup.2 represents halogen,X.sup.3 represents hydrogen or halogen andY represents nitrogen or a CH group,and addition products thereof with acids and metal salts.Type: GrantFiled: January 25, 1991Date of Patent: June 16, 1992Assignee: Bayer AktiengesellschaftInventors: Manfred Jautelat, Klaus Stroech, Gerd Hanssler, Stefan Dutzmann, Karl-Heinz Kuck, Wilhelm Brandes
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Patent number: 5097047Abstract: Fungicidal and plant growth-regulating azolylmethylcyclopropyl derivatives of the formula ##STR1## in which R represents halogen, alkyl or optionally substituted phenyl, or represents the groupings --Y--R.sup.2,whereinY represents oxygen, sulphur, SO or SO.sub.2 andR.sup.2 represents optionally substituted phenyl,R.sup.1 represents hydrogen, alkyl or acyl,X represents nitrogen or a CH group,Z represents halogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms, alkylthio 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 or phenyl which is optionally substituted by alkyl with 1 or 2 carbon atoms and/or halogen, or represents phenoxy which is optionally substituted by alkyl with 1 or 2 carbon atoms and/or halogen andm represents the number 0, 1, 2 or 3, and addition products thereof with acids and metal salts.Type: GrantFiled: October 26, 1990Date of Patent: March 17, 1992Assignee: Bayer AktiengesellschaftInventors: Klaus Stroech, Wilhelm Brandes, Stefan Dutzmann
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Patent number: 5096913Abstract: Combating phytopathogenic fungi with substituted bis-azolyl derivatives of the formula ##STR1## in which R.sup.1 is hydrogen, optionally substituted alkyl, alkenyl, trialkylsilyl or alkylcarbonyl,R.sup.2 is optionally substituted aryl or heterocyclic,X is halogen, andY is a nitrogen atom or a CH group,and addition products thereof with acids and metal salts.Type: GrantFiled: June 8, 1990Date of Patent: March 17, 1992Assignee: Bayer AktiengesellschaftInventors: Klaus Stroech, Susanne Backens-Hammerschmidt, Gerd Hanssler, Stefan Dutzmann
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Patent number: 5096912Abstract: A microbicidal hydroxyethyl-cyclopropyl-azolyl derivative of the formula ##STR1## in which R.sup.1 represents halogen, phenyl or the grouping --Z--R.sup.3, whereinZ represents oxygen, sulphur, SO or SO.sub.2 andR.sup.3 represents alkyl, phenyl or benzyl,R.sup.2 represents alkenyl, optionally substituted furyl, optionally substituted thienyl or the radical of the formula ##STR2## wherein R.sup.4 represents difluoromethoxy, 1,1,2,2-tetrafluoroethoxy, 1,1,2-trifluoro-2-chloro-ethoxy, cyano, formyl, alkoximinoalkyl, carbalkoxy, dialkoxyalkyl, phenoxyalkyl which is optionally substituted in the phenyl moiety by halogen, or benzyloxy which is optionally substituted in the phenyl moiety by halogen andR.sup.5 represents hydrogen or halogen, orR.sup.4 and R.sup.5 are linked in the ortho-position and together represent --O--CH.sub.2 --O--, orR.sup.2 represents the radical of the formula ##STR3## in which R.sup.6 represents difluoromethoxy, 1,1,2,2-tetrafluoroethoxy or 1,1,2-trifluoro-2-chloro-ethoxy, orR.sup.Type: GrantFiled: June 8, 1990Date of Patent: March 17, 1992Assignee: Bayer AktiengesellschaftInventors: Jurgen Scherkenbeck, Monika Frie, Klaus Stroech, Thomas Himmler, Georg-W. Ludwig, Wilhelm Brandes, Stefan Dutzmann