Patents by Inventor Hermann Rempfler
Hermann Rempfler 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: 5998636Abstract: Substituted N-phenyl- and N-heteroarylalkylcarbamates of the formula I ##STR1## in which Q is a group ##STR2## R is halogen, trifluoromethyl, cyano, nitro or C.sub.1 -C.sub.3 haloalkoxy;Z is hydrogen or halogen; orZ and R together in the 2- and 3-position of the phenyl ring form a group --OCF.sub.2 O--;R.sub.1 is C.sub.1 -C.sub.5 alkyl;R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, methyl or ethyl;X is oxygen, sulfur, --SO-- or --SO.sub.2 --;Y is hydrogen, halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy or cyano;n is 0, 1 or 2;n.sub.1 is 0 or 1; andm is 0 or 1,with the proviso that m is 1 if Q is group (1) or (2);and the diastereomers and enantiomers thereof,exhibit pre- and post-emergence herbicidal properties. The preparation of these compounds and their use as herbicidally active ingredients are described.Type: GrantFiled: August 4, 1998Date of Patent: December 7, 1999Assignee: Novartis Finance CorporationInventors: Hermann Rempfler, Fredrik Cederbaum, Felix Spindler, Willy Urs Lottenbach
-
Patent number: 5831114Abstract: Substituted N-phenyl- and N-heteroarylalkylcarbamates of formula (I), in which Q is a group (1), (2) or (3); R is halogen, trifluoromethyl, cyano, nitro or C.sub.1 -C.sub.3 haloalkoxy; Z is hydrogen or halogen; or Z and R together in the 2- and 3-position of the phenyl ring form a group --OCF.sub.2 O--; R.sub.1 is C.sub.1 -C.sub.5 alkyl; R.sub.2, R.sub.3, R.sub.4 and R.sub.5, independently of one another, are hydrogen, methyl or ethyl; X is oxygen, sulfur, --SO-- or --SO.sub.2 --, Y is hydrogen, halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy or cyano; n is 0, 1 or 2; n.sub.1 is 0 or 1; and m is 0 or 1, with the proviso that m is 1 if Q is group (1) or (2); and the diastereomers and enantiomers thereof, exhibit pre- and post-emergence herbicidal properties. The preparation of these compounds and their use as herbicidally active ingredients are described.Type: GrantFiled: May 28, 1997Date of Patent: November 3, 1998Assignee: Novartis Finance CorporationInventors: Hermann Rempfler, Fredrik Cederbaum, Felix Spindler, Willy Urs Lottenbach
-
Patent number: 5500407Abstract: Triazolo pyrimidines of the formula ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl; and R.sub.2 is 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.1 -C.sub.4 haloalkylthio, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkoxy-C.sub.1 -C.sub.4 alkylthio, halogen, amino, C.sub.1 -C.sub.4 alkylamino or C.sub.1 -C.sub.4 dialkylamino, have pre- and postemergence herbicidal properties. Their preparation use thereof as herbicides are described.Type: GrantFiled: November 21, 1994Date of Patent: March 19, 1996Assignee: Ciba-Geigy CorporationInventor: Hermann Rempfler
-
Patent number: 5399545Abstract: Substituted benzyl carbamates of formula I ##STR1## wherein R is halogen, trifluoromethyl, cyano, nitro or C.sub.1 -C.sub.3 haloalkoxy;Z is hydrogen or halogen; orZ and R together in 2- and 3-position of the phenyl ring form the group --OCF.sub.2 O--;R.sub.1 is C.sub.1 -C.sub.5 alkyl; wherein in caseR and Z together in 2- and 3-position of the phenyl ring form the group --OCF.sub.2 --,R.sub.2 and R.sub.3 are each independently of the other hydrogen, methyl or ethyl; and in case R is halogen, trifluoromethyl, cyano, nitro or C.sub.1 -C.sub.3 haloalkoxy,R.sub.2 is methyl or ethyl; and R.sub.3 is hydrogen, methyl or ethyl;X is oxygen, sulfur, --SO-- or --SO.sub.2 --;Y is hydrogen, halogen, C.sub.1 -C.sub.3 alkyl, C.sub.1 -C.sub.3 haloalkyl, C.sub.1 -C.sub.3 alkoxy or cyano; andn is 0, 1 or 2;and the diastereoisomers thereof, have pre- and postemergence herbicidal properties. The preparation of these compounds and the use thereof as herbicides are described.Type: GrantFiled: October 22, 1993Date of Patent: March 21, 1995Assignee: Ciba-Geigy CorporationInventor: Hermann Rempfler
-
Patent number: 5312800Abstract: Pyrrolidinones of formula I ##STR1## wherein R is hydrogen, C.sub.1 -C.sub.4 alkyl, or phenyl unsubstituted or substituted by halogen, C.sub.1 -C.sub.4 alkyl or by C.sub.1 -C.sub.4 haloalkyl, or is fluorine, chlorine or bromine;R.sub.0 is hydrogen or halogen;R.sub.1 and R.sub.2 independently of one another are hydrogen or C.sub.1 -C.sub.4 alkyl;X is hydrogen, flourine, chlorine, bromine, cyano, --COOR.sub.1, --CONR.sub.1 R.sub.2, --NH.sub.2 or --NHCOR.sub.3, wherein R.sub.1 and R.sub.2 are as defined, and R.sub.3 is C.sub.1 -C.sub.4 alkyl; andY is hydrogen, chlorine or bromine; andthe diastereoisomeric forms thereof, exhibit pre- and post-emergence herbicidal properties. The preparation of those compounds and their use as herbicidal active ingredients are described.Type: GrantFiled: May 20, 1993Date of Patent: May 17, 1994Assignee: Ciba-Geigy CorporationInventor: Hermann Rempfler
-
Patent number: 5159078Abstract: The present invention relates to novel N-phenyl-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions containing those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are each, independently of the others, hydrogen; halogen; C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n -; nitro; cyano; C.sub.1 -C.sub.4 alkoxycarbonyl; C.sub.1 -C.sub.4 alkylcarbonyl; di-(C.sub.1 -C.sub.4 alkylamino)-carbonyl; mono-(C.sub.1 -C.sub.4 alkylamino)carbonyl; carbamoyl; C.sub.1 -C.sub.4 -haloalkyl-S(O).sub.n -; or -PO[O-(C.sub.1 -C.sub.4)-alkyl].sub.2 ;R.sup.4 is C.sub.1 -C.Type: GrantFiled: August 17, 1990Date of Patent: October 27, 1992Assignee: Ciba-Geigy CorporationInventors: Hermann Rempfler, Dieter Durr, Rudolf C. Thummel
-
Patent number: 5154751Abstract: The invention relates to novel compositions having herbicidal and plant growth regulating properties and containing, as active ingredient, a compound of formula I ##STR1## wherein R.sub.1 to R.sub.6 are as defined in the description, to novel compounds of formula I and intermediates, and to the preparation thereof.Type: GrantFiled: May 30, 1990Date of Patent: October 13, 1992Assignee: Ciba-Geigy CorporationInventor: Hermann Rempfler
-
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
-
Patent number: 4999046Abstract: The present invention relates to novel N-(2-nitrophenyl)-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions containing those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which R.sup.1 is hydrogen, methyl, fluorine, chlorine or bromine,R.sup.2 is C.sub.1 -C.sub.2 haloalkyl having at least 2 fluorine atoms, andR.sup.3 is C.sub.1 -C.sub.4 alkyl,with the proviso that R.sup.2 is not trifluoromethyl when R.sup.3 is methyl.Type: GrantFiled: April 5, 1989Date of Patent: March 12, 1991Assignee: Ciba-Geigy CorporationInventor: Hermann Rempfler
-
Patent number: 4973690Abstract: The present invention relates to novel N-phenyl-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions that contain those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which the radicals R.sup.1 to R.sup.6 have the meanings given in the text.Type: GrantFiled: April 3, 1989Date of Patent: November 27, 1990Assignee: Ciba-Geigy CorporationInventors: Hermann Rempfler, Dieter Durr
-
Patent number: 4966622Abstract: The present invention relates to novel N-phenyl-N-pyrimidin-2-ylureas having a herbicidal and plant growth-regulating activity, to agrochemical compositions containing those substances as active ingredients, to the use of the novel ureas for controlling weeds or for regulating plant growth, and to processes for the preparation of the novel compounds. The invention also relates to novel intermediates and to processes for the preparation thereof.The novel compounds correspond to formula I ##STR1## in which R.sup.1, R.sup.2 and R.sup.3 are each, independently of the others, hydrogen; halogen; C.sub.1 -C.sub.4 alkyl; C.sub.1 -C.sub.4 alkoxy; C.sub.1 -C.sub.4 haloalkyl; C.sub.1 -C.sub.4 haloalkoxy; C.sub.1 -C.sub.4 alkyl-S(O).sub.n -; nitro; cyano; C.sub.1 -C.sub.4 alkoxycarbonyl; C.sub.1 -C.sub.4 alkylcarbonyl; di-(C.sub.1 -C.sub.4 alkylamino)-carbonyl; mono-(C.sub.1 -C.sub.4 alkylamino)carbonyl; carbamoyl; C.sub.1 -C.sub.4 haloalkyl-S(O).sub.n -; or -PO[O-(C.sub.1 -C.sub.4)-alkyl].sub.2 ;R.sup.4 is C.sub.1 -C.Type: GrantFiled: April 3, 1989Date of Patent: October 30, 1990Assignee: Ciba-Geigy CorporationInventors: Hermann Rempfler, Dieter Durr, Rudolf C. Thummel
-
Patent number: 4940481Abstract: The invention relates to azolylpropane derivatives of the general formula I ##STR1## wherein R.sub.1 is an azolyl group,R.sub.2 and R.sub.3, each independently of the other, is hydrogen, alkyl, alkenyl, alkynyl, aralkyl, cyanoalkyl or alkoxycarbonylalkyl, and one of R.sub.2 and R.sub.3 always has a meaning other than hydrogen,R.sub.4 is C.sub.3 -C.sub.8 cycloalkyl, unsubstituted or substituted by alkyl; unsubstituted or substituted phenyl; or is C.sub.1 -C.sub.10 alkyl, unsubstituted or substituted by phenyl or substituted phenyl,R.sub.5 is an unsubstituted or a mono- or polysubstituted radical selected from the group consisting of C.sub.1 -C.sub.8 alky, C.sub.3 -C.sub.8 cycloalkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, phenyl, naphthyl, biphenyl, benzylphenyl, benzyloxyphenyl, phenoxyphenyl and aralkyl,R.sub.Type: GrantFiled: February 22, 1983Date of Patent: July 10, 1990Assignee: Ciba-Geigy CorporationInventors: Urs Muller, Hans Tobler, Hermann Rempfler, Alfred Meyer
-
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
-
Patent number: 4904778Abstract: The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represent, independently of the other, hydrogen, halogen, C.sub.1 -C.sub.6 -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 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl, nitro or cyano, andR.sup.3 and R.sup.4 each represents, independently of the other, hydrogen, halogen, cyano, OH, SH, C.sub.1 -C.sub.6 -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.1 -C.sub.4 -haloalkylthio, amino, mono-C.sub.1 -C.sub.4 -alkylamino, di-C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl or C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl,processes and intermediates for the preparation thereof, and herbicidal and plant growth-regulating compositions containing a compound of the formula I.Type: GrantFiled: October 24, 1988Date of Patent: February 27, 1990Assignee: Ciba-Geigy Corp.Inventors: Hermann Rempfler, Erich Stamm, Rudolph C. Thummel
-
Patent number: 4894083Abstract: The invention relates to a herbicidal and plant growth regulating composition which contains as active ingredient a 2-benzoyl-2-phenyloxirane of formula I ##STR1## wherein each of m and n independently of the other is 0, 1, 2 or 3 and each of R and R' independently of the other is a halogen atom, a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkyl or C.sub.1 -C.sub.4 haloalkoxy group or the nitro or cyano group or a phenoxy group which is substituted by (R).sub.m, in the form of a racemate or an optically active enantiomer.Some oxiranes are known as intermediates for the preparation of fungicides and others are novel. The herbicidal composition has selective action in rice crops and is active against grasses.Type: GrantFiled: February 29, 1988Date of Patent: January 16, 1990Assignee: Ciba-Geigy CorporationInventors: Hermann Rempfler, Walter Kunz
-
Patent number: 4849007Abstract: The invention relates to a herbicidal and plant growth regulating composition which contains as active ingredient a 2-benzoyl-2-phenyloxirane of formula I; ##STR1## wherein each of m and n independently of the other is 0, 1, 2 or 3 and each of R and R' independently of the other is a halogen atom, a C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 haloalkyl or C.sub.1 -C.sub.4 haloalkoxy group or the nitro or cyano group or a phenoxy group which is substituted by (R).sub.m, in the form of a racemate or an optically active enantiomer.Some oxiranes are known as intermediates for the preparation of fungicides and others are novel. The herbicidal composition has selective action in rice crops and is active against grasses.Type: GrantFiled: November 24, 1986Date of Patent: July 18, 1989Assignee: Ciba-Geigy CorporationInventors: Hermann Rempfler, Walter Kunz
-
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
-
Patent number: 4802909Abstract: The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represents, independently of the other, hydrogen, halogen, C.sub.1 -C.sub.6 -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 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl, nitro or cyano, andR.sup.3 and R.sup.4 each represents, independently of the other, hydrogen, halogen, cyano, OH, SH, C.sub.1 -C.sub.6 -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.1 -C.sub.4 -haloalkylthio, amino, mono-C.sub.1 -C.sub.4 -alkylamino, di-C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl or C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl,processes and intermediates for the preparation thereof, and herbicidal and plant growth-regulating compositions containing a compound of the formula I.Type: GrantFiled: October 9, 1987Date of Patent: February 7, 1989Assignee: Ciba-Geigy CorporationInventors: Hermann Rempfler, Erich Stamm, Rudolph C. Thummel
-
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
-
Patent number: 4758670Abstract: Fluoroazolylpropane derivatives of the formula I ##STR1## are described, in which Az is imidazolyl or triazolyl, R.sup.1 is hydrogen, alkyl or aralkyl which is unsubstituted or substituted by halogen, alkyl, alkoxy, halogenoalkyl, nitro, cyano, carboxyl or alkoxycarbonyl, R.sup.2 is C.sub.1 -C.sub.10 -alkyl which is unsubstituted or substituted by alkoxy, aralkoxy or phenyl, it being possible for the aromatic nuclei of aralkoxy and phenyl in turn to be unsubstituted or substituted by halogen, alkyl, alkoxy, halogenoalkyl, cyano, carboxyl or alkoxycarbonyl, R.sup.3 is hydrogen, alkyl, alkylcarbonyl or aralkyl which is unsubstituted or substituted by halogen, alkoxy, alkyl, halogenoalkyl, cyano, carboxyl or alkoxycarbonyl, R.sup.5 is an unsubstituted or monosubstituted or polysubstituted radical selected from the series comprising C.sub.1 -C.sub.8 -alkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.Type: GrantFiled: January 4, 1984Date of Patent: July 19, 1988Assignee: Ciba-Geigy CorporationInventors: Urs Muller, Hermann Rempfler, Hans Tobler