Patents by Inventor Rolf Schurter
Rolf Schurter 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: 5002604Abstract: There are described novel 2-[4-(5-chloro-3-fluoropyridin-2-yloxy)-phenoxy]-propionic acids esters and -thio-esters having a herbicidal action and an action reducing the growth of grasses, which compounds correspond to the formula I ##STR1## wherein Q is oxygen or sulfur,R.sub.1 is hydrogen or methylR.sub.2 is hydrogen or C.sub.1 -C.sub.4 alkylThe salts and enantiomers of these compounds are also part of the invention.These compounds are suitable for selectively controlling weeds in crops of cultivated plants, and for reducing the growth of grasses.Type: GrantFiled: December 16, 1988Date of Patent: March 26, 1991Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Hermann Rempfler
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Patent number: 4948414Abstract: There are described novel 3-fluoropyridyl-2-oxy derivatives having a herbicidal action and an action reducing the growth of grasses, which compounds correspond to the formula I ##STR1## wherein X is halogen or the trifluoromethyl group, andZ is an alkanoic acid derivative which is more precisely described in the specification.These compounds are suitable for the selective control of weeds in crops of cultivated plants, or for the reduction of the growth of grasses.Type: GrantFiled: December 12, 1988Date of Patent: August 14, 1990Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Peter J. Diel
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Patent number: 4936903Abstract: N-Pyridinylsulfonyl-N'-pyrimidinylureas and N-pyridinylsulfonyl-N'-triazinylureas of the formula ##STR1## wherein E is nitrogen or the methine bridge,Z is oxygen or sulfur,R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.5 and R.sup.6 are each independently hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.3 -C.sub.6 dialkoxyalkyl, C.sub.1 -C.sub.4 haloalkylthio, C.sub.2 -C.sub.4 -alkoxyalkyl, C.sub.3 -C.sub.6 cycloalkyl or --NR.sup.12 R.sup.13,G is a ##STR2## R.sup.1 is hydrogen, halogen, nitro, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, trifluoromethoxy, difluoromethoxy, C.sub.1 -C.sub.4 alkyl carbonyl or --COOR.sup.14,R.sup.3 is a ##STR3## group, n is 0, 1 or 2,R.sup.8 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.1 -C.sub.4 haloalkyl, nitro, --COOR.sup.14, C.sub.1 -C.sub.4 haloalkoxy, --O--CR.sup.15 R.sup.16 --COOR.sup.14 or --O--CR.sup.15 R.Type: GrantFiled: June 29, 1989Date of Patent: June 26, 1990Assignee: Ciba-Geigy Corp.Inventors: Rolf Schurter, Willy Meyer, Werner Fory
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Patent number: 4935051Abstract: There is described the novel 2-[4-(5-Chloro-3-fluoropyridin-2-yloxy)-phenoxy]-propionic acid methyl ester and its (R)-enantiomer. ##STR1## These compounds are suitable for selectively controlling weeds in crops of cultivated plants, and for reducing the growth of grasses.Type: GrantFiled: May 2, 1986Date of Patent: June 19, 1990Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Hermann Rempfler
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Patent number: 4932997Abstract: N-Heterocyclosulfonyl-N'-pyrimidinylureas and N-heterocyclosulfonyl-N'-triazinylureas of the formula ##STR1## wherein E is nitrogen or the methine bridge,Z is oxygen or sulfur,R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.5 and R.sup.6 are each independently hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.3 -C.sub.6 dialkoxyalkyl, C.sub.1 -C.sub.4 haloalkylthio, C.sub.2 -C.sub.4 -alkoxyalkyl, C.sub.3 -C.sub.6 cycloalkyl or --NR.sup.12 R.sup.13,G is a ##STR2## group R.sup.1 is hydrogen, halogen, nitro, C.sub.1 -alkyl, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, trifluoromethoxy, difluoromethoxy, C.sub.1 -C.sub.4 alkyl carbonyl or --COOR.sup.14,R.sup.2 is a ##STR3## group, R.sup.3 is a ##STR4## Q is oxygen, sulfur or --NR.sup.7 --,A is oxygen, sulfur, --SO--, --SO.sub.2 -- or --(CR.sup.10 R.sup.11).sub.m --,m and n are 0, 1 or 2,R.sup.7 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.Type: GrantFiled: April 3, 1985Date of Patent: June 12, 1990Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Willy Meyer, Werner Fory
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Patent number: 4931581Abstract: A method and composition for the immunization of healthy useful plants against plant diseases containing as active ingredients compounds of formula ##STR1## in which: X is hydrogen, halogen, hydroxy, methyl, methoxy, HOOC or MOOC;Y is hydrogen, halogen, SO.sub.3 H, SO.sub.3 M, nitro, hydroxy or amino, M being the molar equivalent of an alkali metal or alkaline earth metal ion that is formed from a corresponding base or basic compound; andZ is cyano or --CO--A;A represents either --OH or --SH, the hydrogen atom of which may also be replaced by the molar equivalent of an inorganic or organic cationic residue,or wherein A represents any other organic residue which has a molecular weight of less than 900 and which may also contain one, or more than one, hetero atom, including the salts of the phytophysiologically tolerable 7-carboxylic acid or 7-thiocarboxylic acid with primary, secondary or tertiary amines or with inorganic bases.Type: GrantFiled: August 18, 1988Date of Patent: June 5, 1990Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Walter Kunz, Robert Nyfeler
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Patent number: 4875923Abstract: N-Pyridinylsulfonyl-N'-pyrimidinylureas and N-pyridinylsulfonyl-N'-triazinylureas of the formula ##STR1## wherein E is nitrogen or the methine bridge,Z is oxygen or sulfur,R.sup.4 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.5 and R.sup.6 are each independently hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkoxy, C.sub.2 -C.sub.4 -alkylthio, C.sub.3 -C.sub.6 cycloalkyl or --NR.sup.12 R.sup.13,G is a ##STR2## R.sup.1 is hydrogen, halogen, nitro, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, trifluoromethyl, trifluoromethoxy, difluoromethoxy, C.sub.1 -C.sub.4 alkyl carbonyl or --COOR.sup.14,R.sup.3 is a ##STR3## group, n is 0, 1 or 2,R.sup.8 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, halogen, C.sub.1 -C.sub.4 haloalkyl, nitro, --COOR.sup.14, C.sub.1 -C.sub.4 haloalkoxy, --O--CR.sup.15 R.sup.16 --CN,R.sup.9 is hydrogen, halogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.2 -C.sub.4 alkoxyalkyl oder C.sub.Type: GrantFiled: October 26, 1987Date of Patent: October 24, 1989Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Willy Meyer, Werner Fory
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Patent number: 4875926Abstract: There are described novel 3-fluoropyridyl-2-oxy derivatives having a herbicidal action and an action reducing the growth of grasses, which compounds correspond to the formula I whereinX is halogen or the trifluoromethyl group, andZ is an alkanoic acid derivative which is more precisely described in the specification.These compounds are suitable for the selective control of weeds in crops of cultivated plants, or for the reduction of the growth of grasses.Type: GrantFiled: February 1, 1988Date of Patent: October 24, 1989Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Peter J. Diel
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Patent number: 4838930Abstract: There are described novel 3-fluoropyridyl-2-oxy derivatives having a herbicidal action and an action reducing the growth of grasses, which compounds correspond to the formula I ##STR1## wherein X is halogen or the trifluoromethyl group, andZ is an alkanoic acid derivative which is more precisely described in the specification.These compounds are suitable for the selective control of weeds in crops of cultivated plants, or for the reduction of the growth of grasses.Type: GrantFiled: February 1, 1988Date of Patent: June 13, 1989Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Peter J. Diel
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Patent number: 4832736Abstract: New 3-fluoropyridyl-2-oxy-phenoxy derivatives are disclosed which have a herbicidal and plant growth inhibiting action. They correspond to the formula ##STR1## wherein X is halogen or trifluoromethyl,G is a C.sub.1 -C.sub.3 -alkylene chain which can be mono- or disubstituted by methyl or phenyl,m is zero or one,R.sup.12 and K.sup.13 are each C.sub.1 -C.sub.6 -alkyl andR.sup.17 is hydrogen, C.sub.1 -C.sub.2 -alkyl or methoxymethyl.These compounds are suitable for the selective control of weeds in crops of cultivated plants, or for the reduction of the growth of grasses.Type: GrantFiled: December 9, 1987Date of Patent: May 23, 1989Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Konrad Oertle
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Patent number: 4831148Abstract: In accordance with a novel process, 2,3-difluoropyridines of formula I ##STR1## wherein X is halogen or trifluoromethyl, are prepared by diazotising a 3-amino-2-halopyridine of formula II ##STR2## wherein X is as defined for formula I and Y is bromine, chlorine or fluorine, in the presence of hydrogen fluroide, to give a 3-fluoro-2-halopyridine of formula III ##STR3## wherein X and Y are as defined for formula II, and treating resultant 3-fluoro-2-halopyridines of formula III, wherein Y is bromine or chlorine, with a fluorinating agent.The 2,3-difluoropyridines prepared by the novel process are valuable intermediates for the preparation of 2-[4-(3-fluoropyridin-2-yloxy)-phenoxy]propionic acid derivatives which are known as herbicides.Type: GrantFiled: October 4, 1985Date of Patent: May 16, 1989Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Urs Siegrist, Hermann Rempfler, Peter Baumeister
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Patent number: 4804757Abstract: The invention relates to novel suylfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.Type: GrantFiled: May 18, 1987Date of Patent: February 14, 1989Assignee: Ciba-Geigy CorporationInventors: Beat Bohner, Werner Fory, Rolf Schurter, Georg Pissiotas
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Patent number: 4792608Abstract: The invention relates to novel sulfonylureas of the formula I ##STR1## wherein R.sub.1 is hydrogen or C.sub.1 -C.sub.5 alkyl,R.sub.2 and R.sub.3, each independently of the other, are hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.5 alkoxy, C.sub.1 -C.sub.5 alkylthio, C.sub.1 -C.sub.5 haloalkyl, halogen, C.sub.1 -C.sub.5 haloalkylthio, C.sub.1 -C.sub.4 alkylamino, C.sub.1 -C.sub.4 dialkylamino, an alkoxyalkyl group or alkoxyalkoxy group, each containing not more than 6 carbon atoms,Z is oxygen or sulfur,E is --CH.dbd. or --N.dbd., andQ is an unsubstituted or substituted 6-membered heterocyclic radical containing 2 to 3 nitrogen atoms and bound through a carbon atom,and the salts thereof.A process for the preparation of the novel compounds and the use thereof are also described. The compounds of formula I can be used in the form of agriculturally useful compositions for controlling weeds and/or for selectively influencing plant growth.Type: GrantFiled: August 26, 1987Date of Patent: December 20, 1988Assignee: Ciba-Geigy CorporationInventors: Beat B/o/ hner, Werner F/o/ ry, Rolf Schurter, Georg Pissiotas
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Patent number: 4780125Abstract: The invention relates to N-phenylsulfonyl-N'-pyrimidinylureas and N-phenylsulfonyl-N-triazinylureas of the general formula ##STR1## wherein R.sub.1 is hydrogen, halogen, nitro, amino, C.sub.1 -C.sub.5 alkyl, C.sub.1 -C.sub.4 haloalkyl or a --Q--R.sub.7, --CO--OR.sub.8 or --(CO).sub.n --NR.sub.9 R.sub.10 radical,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 haloalkoxy, halogen or alkoxyalkyl containing not more than 4 carbon atoms,R.sub.3 is C.sub.2 -C.sub.10 alkenyl which is substituted by one or more fluorine or bromine atoms or by one or more hydroxyl, cyano, nitro, --(Y).sub.m --CO--(Z).sub.n --R.sub.8, --SO.sub.2 --NR.sub.11 R.sub.12, --S(O).sub.p --C.sub.1 --C.sub.3 haloalkyl or --S(O).sub.n --C.sub.1 -C.sub.3 alkyl groups and which may additionally be substituted by one or more chlorine atoms,R.sub.4 is C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy or C.sub.1 -C.sub.Type: GrantFiled: August 22, 1983Date of Patent: October 25, 1988Assignee: Ciba-Geigy CorporationInventors: Willy Meyer, Dieter Reinehr, Konrad Oertle, Rolf Schurter
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Patent number: 4759796Abstract: 2-Phenoxypropionic acid cyanamides of the formula ##STR1## have a useful selective herbicidal activity against weeds, preferably grass weeds, in crops of useful plants.In this formulaR is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.3 -C.sub.4 alkenyl, C.sub.3 -C.sub.4 alkynyl or C.sub.2 -C.sub.4 alkoxyalkyl, andT is a radical ##STR2## wherein A is oxygen or sulfur,X is fluorine, chlorine, bromine, iodine or trifluoromethyl,Y is hydrogen, fluorine, chlorine, bromine or trifluoromethyl, andZ is nitrogen or the methine bridge.Type: GrantFiled: October 16, 1986Date of Patent: July 26, 1988Assignee: Ciba-Geigy CorporationInventors: Beat Bohner, Hermann Rempfler, Rolf Schurter
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Patent number: 4740235Abstract: There are described novel 3-fluoropyridyl-2-oxy derivatives having a herbicidal action and an action reducing the growth of grasses, which compounds correspond to the formula I ##STR1## wherein X is halogen or the trifluoromethyl group, andZ is an alkanoic acid derivative which is more precisely described in the specification.These compounds are suitable for the selective control of weeds in crops of cultivated plants, or for the reduction of the growth of grasses.Type: GrantFiled: March 26, 1986Date of Patent: April 26, 1988Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Peter J. Diel
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Patent number: 4727186Abstract: Phenylsulfonamides of Formula II ##STR1## wherein A is a radical of the formula --C.tbd.C--R;R is H, or an optionally substituted (i) C.sub.1 -C.sub.9 alkyl, (ii) C.sub.3 -C.sub.9 cycloalkyl, (iii) phenyl, or (iv) 5-or-6 membered heterocyclic ring;m is one or two;R.sub.1 is hydrogen, halogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, or --Y--R.sub.5 ;R.sub.2 is hydrogen, halogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, C.sub.1 -C.sub.4 haloalkenyl, --Y--R.sub.5, --COOR.sub.6, --NO.sub.2, or --CO--NR.sub.7 --R.sub.8 ;R.sub.5 and R.sub.6 are each independently C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.1 -C.sub.5 haloalkyl, C.sub.2 -C.sub.5 haloalkenyl, or C.sub.2 -C.sub.6 alkoxyalkyl;R.sub.7 and R.sub.8 are each independently hydrogen, C.sub.1 -C.sub.5 alkyl, C.sub.2 -C.sub.5 alkenyl, or C.sub.2 -C.sub.6 alkynyl; andY is oxygen, sulfur, sulfinyl or sulfonyl bridge; or a salt thereof.Type: GrantFiled: June 17, 1985Date of Patent: February 23, 1988Assignee: Ciba-Geigy CorporationInventors: Rolf Schurter, Werner Fury, Willy Meyer
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Patent number: 4715883Abstract: A process for protecting cultivated plants against aggressive agricultural chemicals is described in which oxide derivatives of the formula ##STR1## are used as antidotes. Either the cultivated area for the cultivated plants or the cultivated plants themselves or parts of the plant (seeds, tubers, stem parts, and the like), as desired, can be treated with these oxide derivatives, which are used as a dressing.Type: GrantFiled: September 24, 1982Date of Patent: December 29, 1987Assignee: Ciba-Geigy CorporationInventors: Alfons Lukaszczyk, Henry Martin, Peter J. Diel, Werner Fory, Karl Gotzi, Haukur Kristinsson, Beat Muller, Rene Muntwyler, Johannes P. Pachlatko, Hermann Rempfler, Rolf Schurter, Henry Szczepanski
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Patent number: 4713109Abstract: There is described the 2-[4-(5-chloro-3-fluoropyridin-2-yloxy)-phenoxy]-propionic acid propynyl ester and its (R)-enantiomer of formula I ##STR1## These compounds are suitable for selectively controlling weeds in crops of cultivated plants, or for reducing the growth of grasses.Type: GrantFiled: May 2, 1986Date of Patent: December 15, 1987Assignee: Ciba Geigy CorporationInventors: Rolf Schurter, Hermann Rempfler
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Patent number: 4707551Abstract: Novel pyrazinyl sulfonamides of the formulaQ--SO.sub.2 --NH.sub.2wherein Q is a substituted pyrazine group are intermediates for the production of sulfonylureas and suflonylthioureas which are useful in controlling weeds or selectively influencing plant growth.Type: GrantFiled: March 21, 1986Date of Patent: November 17, 1987Assignee: CIBA-GEIGY CorporationInventors: Beat Bohner, Werner Fory, Rolf Schurter, Georg Pissiotas