Patents by Inventor Uwe Priesnitz
Uwe Priesnitz 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: 4647665Abstract: A process for the preparation of a sulphonyliso(thio)urea of the formula ##STR1## in which R.sup.1 represents an optionally substituted radical from the group consisting of alkyl, aralkyl, aryl and heteroaryl,R.sup.2 represents an optionally substituted and/or optionally fused, six-membered aromatic heterocycle containing at least one nitrogen atom,R.sup.3 represents an optionally substituted radical from the group consisting of alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkyl-alkyl and aralkyl, andQ represents oxygen or sulphur,comprising reacting a sulphonylguanidine of the formula ##STR2## in which R.sup.4 represents an optionally substituted hydrocarbon radical,with a compound of the formulaH--Q--R.sup.3at a temperature between 0.degree. C. and 150.degree. C. The products are known herbicides.Type: GrantFiled: August 23, 1985Date of Patent: March 3, 1987Assignee: Bayer AktiengesellschaftInventors: Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister, Uwe Priesnitz, Hans-Jochem Riebel, Wolfgang Roy
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Patent number: 4645528Abstract: The invention relates to novel benzolactamsultams of the general formula (I) ##STR1## in which R.sup.1 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, cycloalkylalkyl, aralkyl and aryl,R.sup.2 represents hydrogen or an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl and aralkyl andR.sup.3 represents the radical ##STR2## wherein R.sup.4 represents hydrogen, hydroxy, halogen or an optionally substituted radical from the series comprising alkyl, alkoxy and alkylthio,R.sup.5 represents hydrogen, halogen, cyano, formyl or an optionally substituted radical from the series comprising alkyl, alkylcarbonyl and alkoxycarbonyl andR.sup.6 represents hydrogen, amino or an optionally substituted radical from the series comprising alkyl, alkoxy, alkylamino and dialkylamino,with the proviso that R.sup.4 and R.sup.6 do not simultaneously represent methyl,a process for their preparation and their use as herbicides.Type: GrantFiled: August 23, 1985Date of Patent: February 24, 1987Assignee: Bayer AktiengesellschaftInventors: Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister, Uwe Priesnitz, Hans-Jochem Riebel, Wolfgang Roy, Hans-Joachim Santel, Robert R. Schmidt
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Patent number: 4639537Abstract: New laevorotatory enantiomers of phenoxy propionic acid derivatives of the formula ##STR1## in which R.sup.2 represents a radical of the formula ##STR2## wherein Y represents oxygen or the radical SO.sub.m,whereinm represents 0, 1 or 2,R.sup.2 represents hydrogen or methyl,n represents 1 or 2 andR.sup.3 and R.sup.4 independently of one another represent hydrogen, halogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms, alkylthio with 1 to 4 carbon atoms, nitro, cyano or alkoxycarbonyl with 1 to 4 carbon atoms in the alkoxy group, and their use as intermediates for preparing herbicides.Type: GrantFiled: May 24, 1985Date of Patent: January 27, 1987Assignee: Bayer AktiengesellschaftInventors: Koichi Moriya, Uwe Priesnitz, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt
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Patent number: 4626601Abstract: The new compound ##STR1## is prepared and converted to the new acetal ##STR2## which is reacted with an alkali phenolate or alkaline earth metal phenolate in the presence of copper or a copper compound as a catalyst and in the presence of a diluent at a temperature between about 100.degree. and 200.degree. C. to produce the new acetal ##STR3## which can be hydrolyzed to the corresponding aldehyde which is a known intermediate for pyrethroid-like insecticides.Type: GrantFiled: September 18, 1981Date of Patent: December 2, 1986Assignee: Bayer AktiengesellschaftInventors: Rainer Fuchs, Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel, Erich Klauke
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Patent number: 4622415Abstract: There is disclosed an R enantiomer of phenoxypropionic acid compound of the formula ##STR1## in which X represents hydrogen or halogen, and R represents hydroxyl, alkoxy, halogen or the radical of the formula ##STR2## wherein R.sup.1 and R.sup.2 independently of one another represent hydrogen or methyl, n represents 0, 1 or 2 and Y represents trimethylsilyl, or optionally substituted azolyl bonded via nitrogen, or represents alkoxy, alkoxycarbonyl or the radical of the formula ##STR3## wherein Q represents oxygen, sulphur, SO or SO.sub.2 and R.sup.3 and R.sup.4 independently of one another represent hydrogen, halogen, alkyl having 1 to 4 carbon atoms, alkoxy having 1 to 4 carbon atoms, alkylthio having 1 to 4 carbon atoms, nitro, cyano or alkoxycarbonyl having 1 to 4 carbon atoms in the alkoxy group; compositions containing herbicidally effective amounts of such R enantiomers and the use of such R enantiomers as herbicides.Type: GrantFiled: July 31, 1985Date of Patent: November 11, 1986Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Bernd Gallenkamp, Uwe Priesnitz, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt
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Patent number: 4614537Abstract: N-Acyl-piperidone ketal compounds of the formula ##STR1## in which R.sup.1 represents alkyl or halogen,R.sup.2 represents halogen,R.sup.3 represents alkyl andR.sup.4 represents alkyl, orR.sup.3 and R.sup.4 together represent an optionally branched alkylene chain, andR.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another represent hydrogen or alkyl,and their use as antidotes for protecting crop plants from herbicidal damage.Type: GrantFiled: October 25, 1983Date of Patent: September 30, 1986Assignee: Bayer AktiengesellschaftInventors: Hans-Jochem Riebel, Ludwig Eue, Wilfried Faust, Uwe Priesnitz
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Patent number: 4596599Abstract: New dextrorotatory enantiomers of phenoxy propionic acid derivatives of the formula ##STR1## in which R.sup.1 represents a radical of the formula ##STR2## wherein X.sup.1 represents hydrogen or halogen,X.sup.2 represents halogen or trifluoromethyl,X.sup.3 represents halogen or trifluoromethyl,X.sup.4 represents hydrogen or halogen andX.sup.5 represents hydrogen or halogen,Y represents oxygen or the radical SO.sub.m,whereinm represents 0, 1 or 2,R.sup.2 represents hydrogen or methyl,n represents 1 or 2 andR.sup.3 and R.sup.4 independently of one another represent hydrogen, halogen, alkyl with 1 to 4 carbon atoms, alkoxy with 1 to 4 carbon atoms, alkylthio with 1 to 4 carbon atoms, nitro, cyano or alkoxycarbonyl with 1 to 4 carbon atoms in the alkoxy group, and their use as herbicides.Type: GrantFiled: December 12, 1983Date of Patent: June 24, 1986Assignee: Bayer AktiengesellschaftInventors: Koichi Moriya, Uwe Priesnitz, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt
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Patent number: 4585870Abstract: Novel substituted pyridyl-phenyl ethers of the formula ##STR1## in which X represents trifluoromethyl or chlorine,Y represents hydrogen or chlorine,R.sup.1 represents hydrogen or methyl andR.sup.2 represents formyl or the radicals of the formulae ##STR2## in which R.sup.3 represents alkyl with 1 to 4 carbon atoms,or the two radicals R.sup.3 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,m represents 1 or 2,n represents 0 or 1 andZ represents trimethylsilyl, optionally substituted azolyl which is bonded via nitrogen or the radicals of the formulae ##STR3## in which R.sup.8 represents alkyl with 1 to 4 carbon atoms,or the two radicals R.sup.8 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.9 represents alkyl with 1 to 4 carbon atoms,X.sup.1 represents oxygen or sulphur andR.sup.10 and R.sup.Type: GrantFiled: February 7, 1984Date of Patent: April 29, 1986Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Erich Klauke, Uwe Priesnitz, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt
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Patent number: 4575517Abstract: Cyclopropylmethyl(ene) ethers have an outstanding action in microbicidal agents for preserving industrial materials from damage or destruction by microorganisms.Type: GrantFiled: February 16, 1984Date of Patent: March 11, 1986Assignee: Bayer AktiengesellschaftInventors: Bernd-Wieland Kruger, Uwe Priesnitz, Gerhard Jager, Wilfried Paulus, Hermann Genth
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Patent number: 4575516Abstract: Substituted cyclopropylmethyl(ene) ethers of the formula ##STR1## in which X.sup.1 and X.sup.2 are identical or different and represent halogen,R.sup.1 represents hydrogen or alkyl,R.sup.2 and R.sup.3 are identical or different and represent hydrogen, alkyl, optionally substituted aryl, halogenoalkyl, hetero-alkyl, alkoxyalkyl, alkylthioalkyl, optionally substituted alkenoxyalkyl, optionally substituted alkinoxyalkyl or (di)alkylaminoalkyl,R.sup.4 represents hydrogen or alkyl,R.sup.5 and R.sup.6 are identical or different and represent hydrogen or optionally substituted radicals from the series comprising alkyl, aryl and aralkyl andR represents a trihalogenoalkenyl, alkinyl or iodoalkinyl radical,exhibit some arthropodicidal activity and synergize other known arthropodicides.Type: GrantFiled: February 1, 1984Date of Patent: March 11, 1986Assignee: Bayer AktiengesellschaftInventors: Bernd-Wieland Kruger, Uwe Priesnitz, Gerhard Jager, Wolfgang Behrenz
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Patent number: 4548639Abstract: N-Acyl-piperidone ketal compounds of the formula ##STR1## in which R.sup.1 represents alkyl or halogen,R.sup.2 represents halogen,R.sup.3 represents alkyl andR.sup.4 represents alkyl, orR.sup.3 and R.sup.4 together represent an optionally branched alkylene chain, andR.sup.5, R.sup.6, R.sup.7 and R.sup.8 independently of one another represent hydrogen or alkyl,and their use as antidotes for protecting crop plants from herbicidal damage.Type: GrantFiled: September 28, 1982Date of Patent: October 22, 1985Assignee: Bayer AktiengesellschaftInventors: Hans-Jochem Riebel, Ludwig Eue, Wilfried Faust, Uwe Priesnitz
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Patent number: 4518416Abstract: Novel substituted pyridyl-phenyl ethers of the formula ##STR1## in which X represents trifluoromethyl or chlorine,Y represents hydrogen or chlorine,R.sup.1 represents hydrogen or methyl andR.sup.2 represents formyl or the radicals of the formulae ##STR2## in which R.sup.3 represents alkyl with 1 to 4 carbon atoms, or the two radicals R.sup.3 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.4, R.sup.5, R.sup.6 and R.sup.7 independently of one another represent hydrogen or alkyl with 1 to 4 carbon atoms,m represents 1 or 2,n represents 0 or 1 andZ represents trimethylsilyl, optionally substituted azolyl which is bonded via nitrogen or the radicals of the formulae ##STR3## in which R.sup.8 represents alkyl with 1 to 4 carbon atoms, or the two radicals R.sup.8 together represent an alkylene chain with 2 or 3 carbon atoms,R.sup.9 represents alkyl with 1 to 4 carbon atoms,X.sup.1 represents oxygen or sulphur andR.sup.10 and R.sup.Type: GrantFiled: May 18, 1983Date of Patent: May 21, 1985Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Erich Klauke, Uwe Priesnitz, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt
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Patent number: 4492800Abstract: A process for the preparation of a 1,1-dichloro-alkene of the formula ##STR1## in which R.sup.1 is hydrogen, or an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, andR.sup.2 is an optionally substituted alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, orR.sup.1 and R.sup.2 together form an optionally branched and/or optionally benzo-fused hydrocarbon chain,comprising reacting a carbonyl compound of the formula ##STR2## with a trichloromethanephosphonic acid ester of the formula ##STR3## in which R.sup.3 each individually is an alkyl or phenyl radical, or together are alkanediyl,in the presence of at least an equimolar amount of magnesium. Advantageously,R.sup.1 is hydrogen,R.sup.2 is a C.sub.2 to C.sub.5 alkenyl radical or a radical of the formula ##STR4## Z is a cyano, acetal, carboxyl or C.sub.1 to C.sub.4 alkoxycarbonyl radical, or a radical of the formula COOM, andM is sodium or potassium,R.sup.3 each individually is a C.sub.1 to C.Type: GrantFiled: February 22, 1983Date of Patent: January 8, 1985Assignee: Bayer AktiengesellschaftInventors: Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel
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Patent number: 4455428Abstract: A process for the preparation of a hetaryloxyacetamide of the formula ##STR1## in which R.sup.1 is an optionally substituted oxazole, thiazole or tetrazole radical,comprising reacting a hydroxyacetamide of the formula ##STR2## with a halogeno-hetarene of the formulaR.sup.1 --Halin whichHal represents a fluorine, chlorine, bromine or iodine atom,in the presence of solid, anhydrous potassium hydroxide and in the presence of an aprotic diluent at a temperature between about -50.degree. and +50.degree. C.Type: GrantFiled: November 18, 1982Date of Patent: June 19, 1984Assignee: Bayer AktiengesellschaftInventors: Hans-Joachim Diehr, Uwe Priesnitz
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Patent number: 4450308Abstract: New process for the preparation of known trifluoromethylphenyl oxyphenyl ether compounds of the formula ##STR1## wherein X stands for fluorine, chlorine or bromine andR for moieties, substituted if desired, of the series alkyl, alkenyl and alkinyl,by reacting 1,2-dihalogen-4-trifluoromethylbenzenes of the formula ##STR2## in which X and X.sup.1 independently of one another stand for fluorine, chlorine or bromine,with phenols of the formula ##STR3## in which R has the meaning given above, and basic alkali or alkaline earth compounds or with the salts formed from the phenols of formula (III) and the basic alkali or alkaline earth compounds, in the presence of diluents at temperatures between 60.degree. and 120.degree. C.The compounds of the formula (I) are intermediates for the synthesis of herbicides.Type: GrantFiled: November 30, 1981Date of Patent: May 22, 1984Assignee: Bayer AktiengesellschaftInventors: Heinz Forster, Uwe Priesnitz
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Patent number: 4424166Abstract: In the preparation of a 1,1-dihalogenoalkene of the formula ##STR1## in which R.sup.1 is a hydrogen atom or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, andR.sup.2 is an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, aralkyl, aralkenyl or aryl radical, orR.sup.1 and R.sup.2 together form an optionally branched and/or optionally benzo-fused hydrocarbon chain, andX.sup.1 and X.sup.2 each independently is a halogen atom,wherein a carbonyl compound of the formula ##STR2## is reacted with a trihalogenoacetate of the formula ##STR3## in which X.sup.3 is a halogen atom, andM.sup..sym. is an alkali metal ion or one equivalent of an alkaline earth metal ion,in the presence of an approximately equimolar amount of a phosphorus-containing compound, the improvement which comprises employing as said phosphorus-containing compound a phosphorous acid trialkyl ester or a phosphorous acid triamide and effecting the reaction at a temperature between about 0.Type: GrantFiled: February 23, 1981Date of Patent: January 3, 1984Assignee: Bayer AktiengesellschaftInventors: Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel
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Patent number: 4420435Abstract: Styryl-cyclopropane derivatives of the formula ##STR1## in which R.sup.9 represents independently of one another when n=2, halogen, cyano, nitro, or an optionally halogen-substituted alkyl, alkoxy, alkylthio or alkylenedioxy radical,n represents zero, 1, 2, 3, 4 or 5,R.sup.10 represents hydrogen or halogen, and,Y represents acetyl, cyano or carbamoyl, are produced by reacting a benzylphosphonic acid ester of the formula ##STR2## in which R.sup.4 each independently represents alkyl or phenyl or together represent alkylene,with a formylcyclopropane derivative of the formula ##STR3## or by reacting an .alpha.-hydroxyphosphonic acid ester of the formula ##STR4## with an olefinating agent of the formula ##STR5## in which Z' represents a phosphorus-containing radical ##STR6## or --P(R.sup.7).sub.3.sup..sym. X.sup..crclbar. whereinR.sup.5 and R.sup.6 are identical or different and individually represent alkyl, phenyl, alkoxy or phenoxy or R.sup.5 and R.sup.6 together represent alkanedioxy,R.sup.Type: GrantFiled: June 22, 1982Date of Patent: December 13, 1983Assignee: Bayer AktiengesellschaftInventors: Hellmut Hoffmann, Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel
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Patent number: 4386035Abstract: A process for the preparation of 3-bromo-4-fluoro-benzyl alcohol of the formula ##STR1## comprising reacting 3-bromo-4-fluoro-benzoic acid or a derivative thereof of the formula ##STR2## in which R is a hydrogen atom, an alkyl radical or an alkoxycarbonyl radical,with a complex hydride of the formulaM(M'H.sub.4)in whichM is lithium, sodium or potassium, andM' is boron or aluminum,at a temperature between about -20.degree. and +150.degree. C. When R is alkoxycarbonyl the starting material can be produced by reacting the corresponding free acid with a chloroformic acid ester. Compounds wherein R is alkyl or alkoxycarbonyl are new. The end product is a known intermediate for insecticides.Type: GrantFiled: September 14, 1981Date of Patent: May 31, 1983Assignee: Bayer AktiengesellschaftInventors: Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel, Rainer Fuchs, Erich Klauke
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Patent number: 4383949Abstract: A process for the preparation of a 3-bromo-4-fluorobenzaldehyde acetal of the formula ##STR1## in which R.sup.1 is methyl or ethyl,which comprises reacting a 3-bromo-4-fluoro-benzoic acid halide with ammonia to form 3-bromo-4-fluoro-benzoic acid amide, dehydrating said amide to form 3-bromo-4-fluoro-benzonitrile, reacting the nitrile with formic acid in the presence of a catalyst at a temperature between about 0.degree. and 150.degree. C. to form 3-bromo-4-fluorobenzaldehyde, and reacting said aldehyde with R.sup.1 OH or a derivative thereof capable of forming an acetal. The amide and nitrile are new compounds. The acetals are known intermediates in the synthesis of pyrethroid-like insecticides.Type: GrantFiled: June 26, 1981Date of Patent: May 17, 1983Assignee: Bayer AktiengesellschaftInventors: Fritz Maurer, Hans-Jochem Riebel, Uwe Priesnitz, Erich Klauke
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Patent number: 4381412Type: GrantFiled: August 4, 1981Date of Patent: April 26, 1983Assignee: Bayer AktiengesellschaftInventors: Rainer Fuchs, Fritz Maurer, Uwe Priesnitz, Hans-Jochem Riebel, Erich Klauke