Patents by Inventor Eckart Kranz
Eckart Kranz 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: 5081265Abstract: Fungicidal dioxolanes of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, optionally substituted alkenyl, optionally substituted alkinyl, optionally substituted cycloalkyl, optionally substituted cycloalkylalkyl, optionally substituted aryl, optionally substituted aryloxy, optionally substituted arylthio, optionally substituted arylsulphinyl, optionally substituted arylsulphonyl, optionally substituted arylalkyl, optionally substituted aryloxyalkyl, optionally substituted arylthioalkyl, optionally substituted arylsulphinylalkyl, optionally substituted arylsulphonylalkyl, optionally substituted aralkyloxyalkyl, optionally substituted aralkylthioalkyl, optionally substituted aralkylsulphinylalkyl or optionally substituted aralkylsulphonylalkyl,R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently of one another represent hydrogen, alkyl or cycloalkyl, orR.sup.3 and R.sup.4 together represent divalent alkanediyl and/orR.sup.5 and R.sup.Type: GrantFiled: September 14, 1990Date of Patent: January 14, 1992Assignee: Bayer AktiengesellschaftInventors: Hans-Ludwig Elbe, Eckart Kranz, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 5076833Abstract: A herbicidal or plant growth-regulating 6-(pent-3-yl)-1,2,4-triazin-5(4H)-one of the formula ##STR1## in which R.sup.1 represents amino andR.sup.2 represents alkylthio having more than 1 carbon atom, alkylamino or dialkylamino,orR.sup.1 represents methylamino andR.sup.2 represents alkylthio.Type: GrantFiled: May 1, 1990Date of Patent: December 31, 1991Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Karl-Julius Reubke, Klaus Lurssen, Hans-Joachim Santel, Robert R. Schmidt, Birgit Krauskopf
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Patent number: 5010208Abstract: New alkylcycloalkyl triazolylmethyl ketones of the general formula ##STR1## in which R represents an alkyl group andn is 3, 4, 5, 6 and 7,are produced as described and find use as intermediate products for the preparation of cycloalkyl (.alpha.-triazolyl-.beta.-hydroxy)-ketones, which possess fungicidal and plant growth-regulating properties.Type: GrantFiled: February 16, 1990Date of Patent: April 23, 1991Assignee: Bayer AktiengesellschaftInventors: Wolfgang Kramer, Manfred Jautelat, Eckart Kranz
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Patent number: 4988715Abstract: Fungicidal dioxolanes of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl, or other radicalsR.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 independently of one another represent hydrogen, alkyl or cycloalkyl, orR.sup.3 and R.sup.4 together represent divalent alkanediyl and/orR.sup.5 and R.sup.6 together represent divalent alkanediyl andA represents nitrogen or a CH group,and addition products thereof with acids and metal salts.Type: GrantFiled: August 3, 1989Date of Patent: January 29, 1991Assignee: Bayer AktiengesellschaftInventors: Hans-Ludwig Elbe, Eckart Kranz, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler
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Patent number: 4921967Abstract: New alkylcycloalkyl triazolylmethyl ketones of the general formula ##STR1## in which R represents an alkyl group andn is 3, 4, 5, 6 and 7,are produced as described and find use as intermediate products for the preparation of cycloalkyl (.alpha.-triazolyl-.beta.-hydroxy)-ketones, which possess fungicidal and plant growth-regulating properties.Type: GrantFiled: May 27, 1987Date of Patent: May 1, 1990Assignee: Bayer AktiengesellschaftInventors: Wolfgang Kramer, Manfred Jautelat, Eckart Kranz
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Patent number: 4766144Abstract: 3-carbamoyl-4-hydroxy-couramins for combating parasitic helminths of the formula ##STR1## in which R.sup.1 represents hydrogen, halogen, alkyl, NO.sub.2, CN or alkoxy,X represents O, S, SO or SO.sub.2R.sup.2 represents alkyl, halogenoalkyl, phenyl, naphthyl or pyridyl, which can optionally be substituted; or the radical -X-R.sup.2, together with the radical R.sup.3 can also form an alkylenedioxy (-O-alk-O), halogenoalkylenedioxy, oxyalkyleneoxyalkylene (-O-Alk-O-Alk-) or oxyhalogenoalkylene-oxyhalogenoalkylene bridge; andR.sup.3 and R.sup.4 independently of one another represent hydrogen, halogen, CN, OH, NO.sub.2, amino, mono- or dialklylamino, alkyl, halogenoalkyl, aralkyl or aryl, which can optionally be substituted,can be used for combating parasitic helminths.Type: GrantFiled: April 3, 1987Date of Patent: August 23, 1988Assignee: Bayer AktiengesellschaftInventors: Nikolaus Muller, Eckart Kranz, Peter Andrews
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Patent number: 4536353Abstract: A process for preparing an .alpha.-ketonitrile of the formula ##STR1## in which R is optionally substituted aryl, comprising reacting a cyanohydrin of the formula ##STR2## with sulphuryl chloride or thionyl chloride.Type: GrantFiled: November 2, 1984Date of Patent: August 20, 1985Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Kurt Findeisen
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Patent number: 4530715Abstract: Cycloalkyl (.alpha.-triazolyl-.beta.-hydroxy)-ketones of the general formula ##STR1## in which R.sup.1 represents an optionally substituted cycloalkyl group, andR.sup.2 represents a halogenoalkyl, halogenoalkenyl or alkoxycarbonyl group,and their physiologically acceptable acid addition salts and metal salt complexes are new, are prepared as described and find use as fungicides and plant growth regulators.Type: GrantFiled: November 2, 1982Date of Patent: July 23, 1985Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Karl H. Buchel, Udo Kraatz, Erik Regel, Wilhelm Brandes, Paul-Ernst Frohberger, Klaus Lurssen
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Patent number: 4524205Abstract: A process for the preparation of a herbicidally active 1-amino-1,3,5-triazone-2,4 (1H,3H)-dione of the formula ##STR1## comprising in a first stage at a temperature from about 0.degree. to 100.degree. C. reacting an isocyanate of the formulaR.sup.1 - NCO (II)with an isothio semicarbazone of the tautomeric formulas ##STR2## in which R.sup.3 and R.sup.4 each independently is hydrogen, alkyl, cycloalkyl, aralkyl o alkyl, cycloalkyl, aralkyl or aryl,thereby to form a urea derivative of the tautomeric formulas ##STR3## in a second stage at a temperature between about -50.degree. and 0.degree. C. reacting the urea derivative with phosgene (COCl.sub.Type: GrantFiled: October 21, 1983Date of Patent: June 18, 1985Assignee: Bayer AktiengesellschaftInventors: Gerhard Bonse, Reinhard Lantzsch, Henning Dorr, Wolfgang Kreiss, Karlfried Dickore, Klaus Ditgens, Eckart Kranz
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Patent number: 4492795Abstract: New alkylcycloalkyl imidazolylmethyl ketones of the general formula ##STR1## in which R represents an alkyl group andn is 3, 4, 5, 6 or 7,are produced as described and find use as intermediate products for the preparation of imidazolyl-vinyl-dithioacetals, which possess fungicidal properties.Type: GrantFiled: November 1, 1982Date of Patent: January 8, 1985Assignee: Bayer AktiengesellschaftInventors: Wolfgang Kramer, Manfred Jautelat, Eckart Kranz
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Patent number: 4470842Abstract: 3-Alkenylmercapto-, 3-alkinylmercapto-, 3-alkenylamino- and 3-alkinylamino-4-amino-6-tert.-butyl-1,2,4-triazin-5-ones of the general formula ##STR1## in which A represents a sulphur or a radical of the general formula --NR.sup.2 --,R.sup.2 represents a hydrogen atom or an alkyl group,R.sup.1 represents an alkenyl or alkinyl group,X represents a halogen atom or an alkoxy group, andY represents a hydrogen or halogen atom or an alkoxy group,are new, are prepared as described, and find use as herbicides.Type: GrantFiled: December 30, 1982Date of Patent: September 11, 1984Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Kurt Findeisen, Ludwig Eue, Robert Schmidt
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Patent number: 4455264Abstract: Acyl cyanides of the formula ##STR1## in which R represents an optionally substituted alkyl group having 1 to 8 carbon atoms, an optionally substituted cycloalkyl group having 3 to 12 carbon atoms or an optionally substituted aryl group, or an optionally substituted 5-membered or 6-membered heterocyclic radical which additionally can be fused to a benzene ring,are obtained in high yields by reacting carboxylic acid anhydrides of the formula R--CO--O--CO--R (II) with trimethylsilyl cyanide, (CH.sub.3).sub.3 Si--CN (III), if appropriate in the presence of a catalyst and, if appropriate, in the presence of a diluent, at a temperature between 50.degree. and 250.degree. C. The acyl cyanides can be used as intermediate products, for example, for the preparation of certain herbicidally active compounds of the triazinone series.Type: GrantFiled: October 22, 1982Date of Patent: June 19, 1984Assignee: Bayer AktiengesellschaftInventors: Kurt Findeisen, Eckart Kranz
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Patent number: 4388465Abstract: In the preparation of a phenoxy-azolyl-butanone derivative of the formula ##STR1## in which X is a halogen atom,Y is a hydrogen or halogen atom, andAz is an imidazolyl radical or a 1,2,4-triazolyl radical,wherein dichloropinacolin of the formulaCl.sub.2 CH--CO--C(CH.sub.3).sub.3is reacted with an azole of the formulaAz--Hand a phenol of the formula ##STR2## in the presence of an acid-binding agent, the improvement which comprises carrying out the reaction in the presence of a water-immiscible organic solvent at a temperature between about 40.degree. and 150.degree. C., adding to the solvent at a temperature between about 0.degree. and +80.degree. C. a mineral acid, thereby to precipitate the mineral acid salt of the phenoxy-azolyl-butanone derivative, and separating such salt. Surprisingly the product does not hydrolyze when standing in contact with the mineral acid solution. The product is a known fungicide.Type: GrantFiled: September 8, 1981Date of Patent: June 14, 1983Assignee: Bayer AktiengesellschaftInventors: Hans-Ludwig Elbe, Hermann Arold, Eckart Kranz, Claus Stolzer
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Patent number: 4386953Abstract: A substituted 6-halogeno-tert.-butyl-1,2,4-triazin-5-one of the formula ##STR1## in which R.sup.1 is an amino or methyl group,R.sup.2 is an alkylmercapto, alkylamino or dialkylamino group,X is a halogen atom, andY and Z each independently is a hydrogen or halogen atom,which possesses selective herbicidal activity. A synthesis involving the novel intermediates ##STR2## in which X, Y and Z have the above-mentioned meaning andQ is CN, CONH.sub.2 or COOH,is also shown.Type: GrantFiled: September 8, 1981Date of Patent: June 7, 1983Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Kurt Findeisen, Robert Schmidt, Ludwig Eue
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Patent number: 4386088Abstract: An .alpha.-azolyl-keto derivative of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl or optionally substituted phenyl,R.sup.2 represents the grouping --CX.sup.1 X.sup.2 R.sup.3 or alkoxycarbonyl,R.sup.3 represents halogen, halogenoalkyl or optionally substituted phenyl,R.sup.4 represents the grouping --O--CO--R.sup.5, --O(S)--R.sup.6 or --O--S(O).sub.n --R.sup.7, or alkylamino, dialkylamino, optionally substituted phenylamino or halogen,R.sup.5 represents alkyl, halogenoalkyl, alkenyl, alkynyl, cycloalkyl, optionally substituted phenyl, optionally substituted phenylalkyl, alkylamino, dialkylamino or optionally substituted phenylamino,R.sup.6 represents alkyl, alkenyl, alkynyl, cycloalkyl, optionally substituted phenyl or optionally substituted benzyl,R.sup.7 represents alkyl, halogenoalkyl, optionally substituted phenyl or dialkylamino,n represents 1 or 2,X.sup.1 and X.sup.Type: GrantFiled: September 21, 1981Date of Patent: May 31, 1983Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Wolfgang Kramer, Karl H. Buchel, Wilhelm Brandes, Paul-Ernst Frohberger
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Patent number: 4371700Abstract: A process for the preparation of a 1-azolyl-3,3-dimethyl-1-phenoxy-butan-2-ol of the formula ##STR1## in which X is a nitrogen atom or a CH group,Y each independently is halogen, phenyl, phenoxy, nitro, alkyl, alkoxy or cycloalkyl, andn is 0, 1, 2 or 3,comprising reacting a 1-azolyl-3,3-dimethyl-1-phenoxy-butan-2-one of the formula ##STR2## with formic acid/triethylamine in the form of a 5:2 addition compound of the formula5HCOOHx2N(C.sub.2 H.sub.5).sub.3.The product is a known fungicide.Type: GrantFiled: February 9, 1981Date of Patent: February 1, 1983Assignee: Bayer AktiengesellschaftInventor: Eckart Kranz
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Patent number: 4339612Abstract: 3,3-Dimethyl-1-phenoxy-butan-2-ols of the formula ##STR1## in which Y is a halogen atom, an optionally substituted phenyl radical, an optionally substituted phenoxy radical or a nitro, cyano, alkyl, alkoxy, alkoxycarbonyl or cycloalkyl radical, and n is 0, 1, 2 or 3,exhibit plant growth stimulating properties and are also useful in the synthesis of known fungicides. They are produced from tert-butyloxirane and the corresponding phenols.Type: GrantFiled: February 13, 1981Date of Patent: July 13, 1982Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Peter Siegle
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Patent number: 4316932Abstract: An .alpha.-azolyl-keto derivative of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl or optionally substituted phenyl,R.sup.2 represents the grouping --CX.sup.1 X.sup.2 R.sup.3 or alkoxy-carbonyl,R.sup.3 represents halogen, halogenoalkyl or optionally substituted phenyl,R.sup.4 represents the grouping --O--CO--R.sup.5, --O(S)--R.sup.6 or --O--S(O).sub.n --R.sup.7, or alkylamino, dialkylamino, optionally substituted phenylamino or halogen,R.sup.5 represents alkyl, halogenoalkyl, alkenyl, alkynyl, cycloalkyl, optionally substituted phenyl, optionally substituted phenylalkyl, alkylamino, dialkylamino or optionally substituted phenylamino,R.sup.6 represents alkyl, alkenyl, alkynyl, cycloalkyl, optionally substituted phenyl or optionally substituted benzyl,R.sup.7 represents alkyl, halogenoalkyl, optionally substituted phenyl or dialkylamino,n represents 1 or 2,X.sup.1 and X.sup.Type: GrantFiled: July 2, 1979Date of Patent: February 23, 1982Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Wolfgang Kramer, Karl H. Buchel, Wilhelm Brandes, Paul-Ernst Frohberger
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Patent number: 4291047Abstract: .alpha.-Azolyl-.beta.-hydroxy-ketones of the formula ##STR1## in which R.sup.1 represents optionally substituted alkyl or optionally substituted phenyl,R.sup.2 represents the grouping --CX.sup.1 X.sup.2 R.sup.3 or alkoxycarbonyl,R.sup.3 represents halogen, halogenoalkyl or optionally substituted phenyl,X.sup.1 and X.sup.2, which may be identical or different, each represents hydrogen or halogen, andY represents a nitrogen atom or the CH group, or physiologically acceptable acid-addition salts or metal-salt complexes thereof which possess fungicidal properties.Type: GrantFiled: July 2, 1979Date of Patent: September 22, 1981Assignee: Bayer AktiengesellschaftInventors: Eckart Kranz, Wolfgang Kramer, Karl H. Buchel, Wilhelm Brandes, Paul-Ernst Frohberger
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Patent number: 4229580Abstract: In the reaction of 1-chloro-3,3-dimethylbutan-2-one with a phenol to form an ether-ketone, halogenating it to form a halogenoether-ketone and reacting it with imidazole or 1,2,4-triazole to form a 1-azolyl-3,3-dimethyl-1-phenoxybutan-2-one of the formula ##STR1## in which X is N or CH,n is an integer from 0 to 4, andY each independently is halogen, phenyl, phenoxy, nitro, alkyl, alkoxy or cycloalkyl,the improvement which comprises effecting all steps successively in an aromatic hydrocarbon or chlorinated aliphatic or aromatic hydrocarbon as solvent without intermediate isolation. The products are obtained in high yield.Type: GrantFiled: March 9, 1978Date of Patent: October 21, 1980Assignee: Bayer AktiengesellschaftInventors: Hermann Arold, Hans-Ludwig Elbe, Eckart Kranz, Wolfgang Kramer, Jorg Stetter, Claus Stolzer, Rudolf Thomas