Patents by Inventor Christa Fest
Christa Fest 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: 4886832Abstract: Fungicidally active benzaldoxime derivatives of the formula ##STR1## in which R represents alkyl, alkoxy, halgenoalkyl, halogenoalkoxy or alkenyloxy, or aryl or aryloxy, in each case optionally mono- or polysubstituted by identical or different substituents, aralkyloxy which is optionally mono- or polysubstituted in the aryl radical by identical or different substituents, or represents cycloalkoxy which is optionally mono- or polysubstituted by identical or different substituents, or represents a heterocyclic radical which is optionally mono- or polysubstituted by identical or different substituents,R.sup.1 represents hydrogen, halogen, alkyl or alkoxy,R.sup.2 represents hydrogen, alkyl or halogenoalkyl,R.sup.3 represents hydrogen or halogen,R.sup.4 represents halogen andR.sup.5 represents hydrogen or halogen.Type: GrantFiled: March 10, 1988Date of Patent: December 12, 1989Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Kurt Findeisen, Wilhelm Brandes, Stefan Dutzmann, Gerd Hanssler, Paul Reinecke
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Patent number: 4859235Abstract: Pesticidally active novel .alpha.-methylsulphonylbenzaldoxime and their carbamates of the formula ##STR1## in which Y represents H or --CO--NH--R,R represents alkyl having 1 to 6 carbon atoms, halogenoalkyl having 1 to 8 carbon atoms and 1 to 5 halogen atoms, cyanoalkyl having 1 to 6 carbon atoms in the alkyl part, tosyl, benzyl, cycloalkyl having 5 to 7 carbon atoms which is optionally monosubstituted to pentasubstituted by alkyl having 1 to 4 carbon atoms, or phenyl which is optionally monosubstituted to pentasubstituted by alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 4 carbon atoms, halogenoalkyl or halogenoalkoxy in each case having 1 to 4 carbon atoms and 1 to 5 halogen atoms, and halogen, these substituents being identical or different,Hal represents halogen, andx represents hydrogen or halogen.Type: GrantFiled: April 8, 1988Date of Patent: August 22, 1989Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Gerd Hanssler, Wilhelm Brandes
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Patent number: 4846879Abstract: Herbicidally active compounds of the formula ##STR1## in which R.sup.1 represents halogen, cyano or C.sub.1 -C.sub.6 -alkyl (which is optionally substituted by fluorine, chlorine, bromine, cyano, C.sub.1 -C.sub.4 -alkoxy, C.sub.3 -C.sub.6 -cycloalkyl or phenyl), or represents C.sub.1 -C.sub.4 -alkoxy (which is optionally substituted by chlorine, bromine, cyano or C.sub.1 -C.sub.4 -alkoxy),R.sup.2 represents optionally substituted aryl,R.sup.3 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.6 -alkylamino or di-(C.sub.1 -C.sub.6 -alkyl)-amino, or represents optionally substituted C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkylthio, andR.sup.4 represents hydrogen, halogen or hydroxyl, or represents optionally substituted C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -alkoxy or C.sub.1 -C.sub.6 -alkylthio, or represents C.sub.1 -C.sub.6 -alkylamino or di-(C.sub.1 -C.sub.Type: GrantFiled: October 7, 1987Date of Patent: July 11, 1989Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Hans-Jochem Riebel, Hans-Joachim Santel, Robert R. Schmidt, Robert H. Strang
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Patent number: 4840661Abstract: The invention relates relates to new sulphonyliso(thio)-urea derivatives of the general formula (I) ##STR1## in which R.sup.1 represent an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroarylR.sup.2 represents an optionally substituted and/or optionally fused 6-membered aromatic heterocyclic radial containing at least one nitrogen atom,R.sup.3 represents an optically substituted aromatic or heteroaromatic radical,X represents oxygen or sulphur andM represents hydrogen or an equivalent of a metal, and adducts of compounds of the formula (I) with strong acids, processes for their prepartion, and their use as herbicides.Type: GrantFiled: August 23, 1985Date of Patent: June 20, 1989Assignee: Bayer AktiengesellschaftInventors: Hans-Joachim Diehr, Christa Fest, Rolf Kristen, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister, Uwe Priesnitz, Hans-Jochem Riebel, Wolfgang Roy, Hans-Joachim Santel, Robert R. Schmidt, Ludwig Eue
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Patent number: 4822406Abstract: An O-aryl-N'-(triazin-2-yl)-isourea of the formula ##STR1## in which R.sup.1 represents the radical ##STR2## wherein R.sup.5 represents trifluoromethoxy, difluoromethoxy, phenyl, phenoxy, trifluoromethylthio, difluoromethylthio, di-(C.sub.1 -C.sub.4 -alkyl)-aminocarbonyl, C.sub.1 -C.sub.4 -alkylsulphonyl, C.sub.1 -C.sub.4 - alkoxyaminosulphonyl, N-(C.sub.1 -C.sub.4 -alkoxy)-N-(C.sub.1 -C.sub.4 -alkyl)-aminosulphonyl, C.sub.1 -C.sub.4 -alkylaminosulphonyl or di-(C.sub.1 -C.sub.4-alkyl)-aminosulphonyl,or whereinR.sup.1 represents the radical ##STR3## wherein R.sup.6 represents hydrogen or C.sub.1 -C.sub.4 -alkyl andR.sup.7 and R.sup.8 are identical or different and represent hydrogen, fluorine, chlorine, bromine, nitro, cyano, C.sub.1 -C.sub.4 -alkyl (which is optionally substituted by fluorine and /or chlorine), C.sub.1 -C.sub.4 -alkoxy (which is optionally substituted by fluorine and/or chlorine), carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkylsulphonyl or di-(C.sub.1 -C.sub.Type: GrantFiled: October 7, 1987Date of Patent: April 18, 1989Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Hans-Jochem Riebel, Hans-Joachim Santel, Robert R. Schmidt, Robert H. Strang
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Patent number: 4820337Abstract: Herbicidally active 1-(2-oxyaminosulphenylphenylsulphonyl)-3-triazinyl-ureas of the formula ##STR1## in which X is nitrogen,Y is nitrogn,Z is C-R.sup.6 andR.sup.1, R.sup.2, R.sup.4 and R.sup.6 are various organic radicals.Type: GrantFiled: March 24, 1987Date of Patent: April 11, 1989Assignee: 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: 4806147Abstract: Herbicidally active novel substituted 1-benzylsulphonyl-3-heteroaryl(thio)-ureas of the formula ##STR1## in which Q represents oxygen or sulphur,R.sup.1 represents hydrogen, or represents optionally substituted radicals from the series comprising alkyl, alkenyl, alkynyl and aralkyl,R.sup.2 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, halogenoalkylthio, amino, alkylamino or dialkylamino,R.sup.3 represents hydrogen or alkyl,R.sup.4 represents halogenoalkyl,X represents nitrogen or a --CH grouping,Y represents nitrogen or a --CR.sup.5 grouping,R.sup.5 represents hydrogen, halogen, cyano, alkyl, formyl, alkyl-carbonyl or alkoxy-carbonyl,Z represents nitrogen or a --CR.sup.6 grouping, andR.sup.6 represents hydrogen, halogen, hydroxyl, alkyl, halogenoalkyl, alkoxy, halogenoalkoxy, alkylthio, alkylamino or dialkylamino,and salts thereof with metals and basic organic nitrogen compounds. The benzylsulphonyl moieties are also new.Type: GrantFiled: December 9, 1987Date of Patent: February 21, 1989Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Klaus-Helmut Muller, Theodor Pfister, Hans-Jochem Riebel, Ernst Kysela, Hans-Joachim Santel, Robert R. Schmidt, Robert H. Strang
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Patent number: 4780126Abstract: 3-Substituted 1-(2-halogenoalkoxy-benzenesulphonyl)-3-heteroaryl-(thio)urea herbicides of the formula ##STR1## in which (A)R is CF.sub.3,Q is O,R.sup.1 is CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 -n, C.sub.3 H.sub.7 -i, CH.sub.2 --CH.dbd.CH.sub.2, CH.sub.2 --C.tbd.CH or CH.sub.2 --C.sub.6 H.sub.5,R.sup.2 is CH.sub.3, OCH.sub.3, OC.sub.2 H.sub.5, SCH.sub.3, NH--CH.sub.3 or NH--C.sub.2 H.sub.5,X is N,Y is N andZ is C--CH.sub.3, C--C.sub.2 H.sub.5, C--OCH.sub.3 or C--OC.sub.2 H.sub.5 ; or(B)R is CF.sub.3,Q is O,R.sup.1 is CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 -n, C.sub.3 H.sub.7 -i, CH.sub.2 --CH.dbd.CH.sub.2, CH.sub.2 --C.tbd.CH or CH.sub.2 --C.sub.6 H.sub.5,R.sup.2 is CH.sub.3, OCH.sub.3 or OC.sub.2 H.sub.5,X is N,Y is C--H andZ is C--C.sub.2 H.sub.5, C--OCH.sub.3 or C--OC.sub.2 H.sub.5 ; or(C)R is CH.sub.2 --CH.sub.2 Cl,Q is O,R.sup.1 is CH.sub.3, C.sub.2 H.sub.5, C.sub.3 H.sub.7 -n, C.sub.3 H.sub.7 -i, CH.sub.2 --CH.dbd.CH.sub.2, CH.sub.2 --C.tbd.CH or CH.sub.2 --C.sub.6 H.sub.5,R.sup.2 is CH.sub.Type: GrantFiled: June 9, 1987Date of Patent: October 25, 1988Assignee: 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, Ludwig Eue, Ernst Kysela
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Patent number: 4769455Abstract: The invention relates to new benzodisultams 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 an optionally substituted and/or optionally fused six-membered aromatic heterocyclic radical which contains at least one nitrogen atom,a process for their preparation and their use as herbicides.Type: GrantFiled: February 12, 1987Date of Patent: September 6, 1988Assignee: 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: 4766136Abstract: Novel fungicidally active phenylsulphonyl-pyridine aldoximes of the formula ##STR1## in which R.sup.1 represents halogen, alkyl, alkoxy, alkylthio, halogenoalkyl, halogenoalkoxy, halogenoalkylthio, nitro, alkoxycarbonyl or alkylcarbonylamino,R.sup.2 represents halogen or alkyl,n represents an integer 0, 1, 2, 3, 4 or 5, andm represents an integer 0, 1, 2, 3 or 4.Type: GrantFiled: March 3, 1987Date of Patent: August 23, 1988Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Wilhelm Brandes, Gerd Hanssler, Paul Reinecke
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Patent number: 4743294Abstract: A selective herbicide of the formula ##STR1## in which m is 0, 1 or 2,R.sup.5 is an organic radical,R.sup.3 is hydrogen or an organic radical,R.sup.9 is hydrogen or an optionally substituted alkyl radical,R.sup.10 is an organic radical or forms a ring with R.sup.9,R.sup.40 and R.sup.41 are alkyl or alkoxy, andM is hydrogen or a metal or ammonium radical, or an acid adduct thereof.Type: GrantFiled: April 22, 1987Date of Patent: May 10, 1988Assignee: 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, Koichi Moriya, Ludwig Eue, Klaus Lurssen
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Patent number: 4741759Abstract: Herbicidally active oxyguanidine derivatives of the formula ##STR1## in which M represents hydrogen or one equivalent of a metal,R.sup.1 represents halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.2 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, phenyl or C.sub.1 -C.sub.2 -alkoxy-carbonyl,R.sup.2 represents hydrogen or the radical ##STR2## and R.sup.3 represents C.sub.4 -C.sub.12 -alkyl, isopropyl or--if M represents one equivalent of a metal--also propyl, or represents C.sub.2 -C.sub.12 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxycarbonyl-C.sub.1 -C.sub.2 -alkyl, aminocarbonylmethyl, C.sub.1 -C.sub.4 -alkylaminocarbonylmethyl, di-C.sub.1 -C.sub.4 -alkylaminocarbonylmethyl, C.sub.3 -C.sub.12 -alkenyl, C.sub.3 -C.sub.12 -alkinyl, benzyl which is substituted by halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxycarbonyl, or phenyl, benzhydryl, or phenethyl, all optionally substituted by halogen, nitro, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.Type: GrantFiled: August 23, 1985Date of Patent: May 3, 1988Assignee: Bayer AktiengesellschaftInventors: Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Theodor Pfister, Uwe Priesnitz, Hans-Jochem Riebel, Wolfgang Roy, Ludwig Eue, Hans-Joachim Santel, Robert R. Schmidt
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Patent number: 4742070Abstract: Arylsulphonyl-pyridinealdoxime derivatives of the formula (I) ##STR1## in which R, R.sup.1, R.sup.2, n and m have the meanings stated in the description, and their use as agents for combating pests.The new arysulphonyl-pyridinealdoxime derivatives of the formula (I) can be prepared from suitable arylsulphonyl-pyridinealdoximes and suitable carbonyl compounds.Type: GrantFiled: March 12, 1987Date of Patent: May 3, 1988Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Wilhelm Brandes, Gerd Hanssler, Paul Reinecke
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Patent number: 4732711Abstract: 1-(2-Trifluoromethoxy-phenylsulphonyl)-3-heteroaryl-(thio)urea herbicides of the formula ##STR1## in which Q represents oxygen or sulphur,R.sup.1 represents hydrogen, C.sub.1 -C.sub.4 -alkyl or benzyl,R.sup.2 represents hydrogen, halogen, hydroxyl, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -halogenoalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -halogenoalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -halogenoalkylthio, amino, C.sub.1 -C.sub.4 -alkylamino or di-(C.sub.1 -C.sub.4 -alkyl)-amino,X represents nitrogen or a --CH-- grouping,Y represents nitrogen or a --CR.sup.3 -- grouping,whereinR.sup.3 represents hydrogen, halogen, C.sub.1 -C.sub.4 -alkyl, (C.sub.1 -C.sub.2 -alkyl)-carbonyl or (C.sub.1 -C.sub.2 -alkoxy)-carbonyl, andZ represents nitrogen or a --CR.sup.4 -- grouping,whereinR.sup.4 represents hydrogen, halogen, hydroxyl, 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 -alkylamino or di-(C.sub.1 -C.sub.4 -alkyl)-amino.Type: GrantFiled: May 30, 1986Date of Patent: March 22, 1988Assignee: 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, Ludwig Eue, Ernst Kysela
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Patent number: 4726834Abstract: Herbicidally active novel benzodisultams of the formula ##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, fluorine, chlorine, bromine, hydroxyl, cyclopropyl, C.sub.1 -C.sub.4 -alkyl (which is optionally substituted by fluorine and/or chlorine), C.sub.1 -C.sub.4 -alkoxy [which is optionally substituted by fluorine and/or chlorine], C.sub.1 -C.sub.4 -alkylthio (which is optionally substituted by fluorine and/or chlorine), amino, or C.sub.1 -C.sub.4 -alkyl- or di-(C.sub.1 -C.sub.4 -alkyl)-amino (which is optionally substituted by fluorine) andR.sup.3 represents hydrogen, fluorine, chlorine, bromine, hydroxyl, cyclopropyl, C.sub.1 -C.sub.4 -alkyl (which is optionally substituted by fluorine and/or chlorine), C.sub.1 -C.sub.4 -alkoxy (which is optionally substituted by fluorine and/or chlorine), C.sub.1 -C.sub.Type: GrantFiled: July 24, 1986Date of Patent: February 23, 1988Assignee: Bayer AktiengesellschaftInventors: 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: 4725303Abstract: Herbicidally active guanidine derivatives of the formula ##STR1## in which m represents the numbers zero, 1 or 2,R.sup.5 represents an optionally substituted radical from the series comprising alkyl, aralkyl, aryl and heteroaryl,R.sup.2 represents a pyrimidin-2-yl radical which is substituted by halogen, amino, cyano or formyl and/or by optionally substituted radicals from the series comprising alkyl, alkoxy, alkylamino, dialkylamino, alkylcarbonyl and alkoxycarbonyl,R.sup.3 represents hydrogen, an optionally substituted radical from series comprising alkyl, cycloalkyl, alkenyl, alkinyl and aralkyl,R.sup.9 represents hydrogen or optionally substituted alkyl andR.sup.10 represents an optionally substituted radical from the series comprising alkyl, alkenyl, alkinyl, cycloalkyl, aralkyl, aryl, heteroaryl, alkyl- or alkoxycarbonyl and alkyl- or arylsulphonyl, or R.sup.9 and R.sup.Type: GrantFiled: November 14, 1986Date of Patent: February 16, 1988Assignee: Bayer AktiengesellschaftInventors: Koichi Moriya, Theodor Pfister, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt, Klaus Lurssen, Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Uwe Priesnitz, Wolfgang Roy, Hans-Joachim Santel
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Patent number: 4725304Abstract: Novel herbicidally active fluoroalkoxyphenylsulphonylguanidines of the formula ##STR1## in which M is hydrogen or one equivalent of a metal,R.sup.1 is fluorine-substituted alkyl, andR.sup.2, R.sup.3 and R.sup.4 each independently is hydrogen or various organic radicals,or 1:1 adducts thereof with strong acids.Type: GrantFiled: August 23, 1985Date of Patent: February 16, 1988Assignee: 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: 4725305Abstract: Herbicidally active novel N,N'-bis-sulphonyl guanidines of the formula ##STR1## in which M is hydrogen, a metal or an ammonium radical, andR.sup.4, R.sup.5, R.sup.40 and R.sup.41 are various organic radicals.Type: GrantFiled: November 14, 1986Date of Patent: February 16, 1988Assignee: Bayer AktiengesellschaftInventors: Koichi Moriya, Theodor Pfister, Hans-Jochem Riebel, Ludwig Eue, Robert R. Schmidt, Klaus Lurssen, Hans-Joachim Diehr, Christa Fest, Rolf Kirsten, Joachim Kluth, Klaus-Helmut Muller, Uwe Priesnitz, Wolfgang Roy, Hans-Joachim Santel
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Patent number: 4716176Abstract: Novel fungicidally active benzaldoxime carbamates of the formula ##STR1## in which R is alkyl having 1 to 6 carbon atoms, halogenoalkyl having 1 to 8 carbon atoms and 1 to 5 halogen atoms, cyanoalkyl having 1 to 6 carbon atoms in the alkyl part, tosyl, benzyl, cycloalkyl which has 5 to 7 carbon atoms and is optionally substituted by alkyl having 1 to 4 carbon atoms, or phenyl which is optionally substituted by substituents independently selected from the group consisting of alkyl having 1 to 6 carbon atoms, alkoxy having 1 to 4 carbon atoms, halogen, and halogenoalkoxy and halogenoalkyl each having 1 to 4 carbon atoms and 1 to 5 halogen atoms.Type: GrantFiled: May 23, 1986Date of Patent: December 29, 1987Assignee: Bayer AktiengesellschaftInventors: Christa Fest, Wilhelm Brandes, Gerd Hanssler, Paul Reinecke
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Patent number: 4704158Abstract: The invention relates to new 1-(2-oxyaminocarbonylphenylsulphonyl)-3-heteroaryl-ureas 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 an optionally substituted and/or optionally fused six-membered aromatic heterocyclic radical which contains at least one nitrogen atom,a process for their preparation, and their use as herbicides.Type: GrantFiled: August 23, 1985Date of Patent: November 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, Hans-Joachim Santel, Robert R. Schmidt