Patents by Inventor Norbert Meyer

Norbert Meyer 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: 5158598
    Abstract: Bithienyl derivatives of the formula Ia ##STR1## where the substituents have the following meanings: R.sup.1, R.sup.2 hydrogen, halogen, nitro, formyl, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.6 -haloalkyl, C.sub.3 -C.sub.8 -cycloalkyl, C.sub.3 -C.sub.8 -cycloalkoxy, C.sub.1 -C.sub.6 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, substituted or unsubstituted C.sub.1 -C.sub.6 -alkylcarbonyl, substituted or unsubstituted C.sub.3 -C.sub.6 -cycloalkylcarbonyl, substituted or unsubstituted C.sub.1 -C.sub.6 -alkoxycarbonyl and/or phenylcarbonyl;R.sup.3 hydrogen, halogen, 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 or C.sub.1 -C.sub.4 -haloalkoxy;A --CSNH.sub.
    Type: Grant
    Filed: August 4, 1989
    Date of Patent: October 27, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Reiner Kober, Joachim Leyendecker, Rainer Seele, Klaus Fischer, Hans Theobald, Bruno Wuerzer, Karl-Otto Westphalen, Norbert Meyer
  • Patent number: 5154753
    Abstract: Cyclohexenone derivatives of the formula ##STR1## where R.sup.1, R.sup.2, R.sup.3, Y and Z have the meanings given in the disclosure, processes for their manufacture, herbicidal and growth-regulating agents containing the novel active ingredients, and processes for combating unwanted plant growth and for regulating plant growth.
    Type: Grant
    Filed: August 14, 1991
    Date of Patent: October 13, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Meyer, Johann Jung, Wilhelm Rademacher, Dieter Kolassa, Rainer Becker, Dieter Jahn, Michael Keil, Ulrich Schirmer, Bruno Wuerzer
  • Patent number: 5123955
    Abstract: Phenylalkenylcarboxylic acid and esters thereof of the general formula I ##STR1## where X is hydrogen or fluorine, R.sup.1 is hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.5 - or C.sub.6 -cycloalkyl, (C.sub.1 -C.sub.4 -alkoxy)-C.sub.2 -C.sub.4 -alkyl or (C.sub.1 -C.sub.4 -alkylthio)-C.sub.2 -C.sub.4 -alkyl; W is a divalent radical --CH.dbd.CR.sup.2 --; --CH.dbd.CY--; --CH.dbd.CR.sup.2 --CH.sub.2 --; --CH.dbd.CR.sup.2 --CH.dbd.CR.sup.3 -- or ##STR2## where Y is chlorine or bromine and R.sup.2 and R.sup.3 are each hydrogen or C.sub.1 -C.sub.4 -alkyl, with the proviso that X is not F when W is --CH.dbd.CR.sup.2 --, their manufacture, and their use as herbicides.
    Type: Grant
    Filed: October 23, 1989
    Date of Patent: June 23, 1992
    Inventors: Peter Plath, Karl Eicken, Norbert Goetz, Jochen Wild, Norbert Meyer, Bruno Wuerzer
  • Patent number: 5123952
    Abstract: 5-Amino-6-pyridazones of the general formulae Ia and Ib ##STR1## where R.sup.1 is C.sub.1 -C.sub.4 -alkyl which may carry up to three halogen atoms, R.sup.2 is C.sub.1 -C.sub.4 -alkyl or C.sub.3 -C.sub.6 -alkenyl, where these groups may carry up to two phenyl radicals, or C.sub.3 -C.sub.6 -alkynyl, A is --CO-- or --SO.sub.2 --, B is C.sub.1 -C.sub.6 -alkyl, C.sub.2 -C.sub.6 -alkenyl or C.sub.2 -C.sub.6 -alkynyl, where these groups may carry up to three of the following radicals: halogen, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio and/or phenyl; an isocyclic or heterocyclic C.sub.3 -C.sub.7 -cycloalkyl group or an isocyclic or heterocyclic C.sub.3 -C.sub.7 -cycloalkenyl group, where these groups may be fused with one or two cycloalkyl groups of this type or with one or two benzene nuclei, where the total number of ring members is from 3 to 16 and these cyclic radicals may carry up to three of the following groups: halogen, C.sub.1 -C.sub.4 -alkyl, C.sub.2 -C.sub.6 -alkenyl, C.sub.2 - C.sub.
    Type: Grant
    Filed: July 12, 1989
    Date of Patent: June 23, 1992
    Inventors: Ulrich Wriede, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen
  • Patent number: 5117005
    Abstract: Naphthindazole-4,9-quinones of the formula ##STR1## where R.sup.1 to R.sup.5 have the meanings given in the disclosure, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: May 26, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen, Hartmut Laatsch
  • Patent number: 5104441
    Abstract: Substituted sulfonylureas of the formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.4 -alkenyl or alkynyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.3 -C.sub.6 -alkoxyalkyl, C.sub.4 -C.sub.6 -haloalkoxyalkyl or C.sub.5 -C.sub.6 -cycloalkyl,R.sup.2 is hydrogen, methyl or ethyl,R.sup.3 is hydrogen, halogen, methyl or methoxy,R.sup.4 is hydrogen, methyl or methoxy,X is N or C--H,and Hal is fluorine, chlorine or bromine, and alkali metal or alkaline earth metal salts thereof, with the proviso that R.sup.1 is not methyl when Hal is chlorine and X is N, a process for the manufacture of sulfonylureas of the formula I and their use as herbicides.
    Type: Grant
    Filed: November 28, 1990
    Date of Patent: April 14, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Helmut Hagen, Thomas Liese-Sauer, Norbert Meyer, Bruno Wuerzer
  • Patent number: 5089042
    Abstract: N-phenyltetrahydrophthalimides of the formula I ##STR1## where R.sup.1 is hydrogen or halogen, R.sup.2 is halogen and A is a substituent of the formula ##STR2## where X is oxygen or sulfur, n is zero or one, R.sup.3 is hydrogen or C.sub.1 -C.sub.6 -alkoxycarbonyl or C.sub.1 -14 C.sub.3 -alkyl which is unsubstituted or substituted by halogen, cyano, hydroxyl, mercapto, C.sub.1 -C.sub.6 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.3 -C.sub.6 -alkenyloxy, C.sub.3 -C.sub.6 -alkenylthio, C.sub.3 -C.sub.6 -alkynyloxy, C.sub.3 -C.sub.6 -alkynylthio or C.sub.1 -C.sub.4 -acyloxy, or is hydroxyl or carboxyl or is C.sub.1 -C.sub.4 -alkylthio-C.sub.1 - or C.sub.2 -alkyl or C.sub.1 -C.sub.4 -alkoxy-C.sub.1 - or -C.sub.2 -alkyl which is substituted in the alkyl ether or thioehter moiety by C.sub.1 -C.sub.6 -alkoxycarbonyl, R.sup.4 is hydrogen or C.sub.1 -C.sub.3 -alkyl, Z is methyleneoxymethylene, methylenethiomethylene or ethenylene (--CH.dbd.CH--) and R.sup.5 and R.sup.
    Type: Grant
    Filed: April 16, 1990
    Date of Patent: February 18, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Lothar Rueb, Karl Eicken, Barbara Schwalge, Peter Plath, Bruno Wuerzer, Norbert Meyer
  • Patent number: 5085689
    Abstract: Cyclohexenone compounds of the formula I ##STR1## where the substituents have the following meanings: R.sup.1 substituted or unsubstituted alkyl, alkenyl, alkynyl, cycloalkyl, phenyl or benzyl;A oxygen N--OR.sup.2, NR.sup.3 ;R.sup.2 substituted or unsubstituted alkyl, alkenyl, alkynyl;R.sup.3 hydrogen, alkyl, hydroxyalkyl, alkoxyalkyl, alkylthioalkyl, substituted or unsubstituted phenyl or benzyl;processes for their manufacture and their use for combating unwanted plant growth and for regulating plant growth.
    Type: Grant
    Filed: October 10, 1990
    Date of Patent: February 4, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Juergen Kast, Norbert Meyer, Ulf Misslitz, Juergen Schubert, Johann Jung, Wilheim Rademacher, Karl-Otto Westphalen, Bruno Wuerzer
  • Patent number: 5081301
    Abstract: Hydroxylamine derivatives have the general formula IAryl--A--O--B IwhereAryl is an unsubstituted or substituted, mononuclear or binuclear, isocyclic radical;A is a 1,4-butenylene group of the general formulae IIa or IIb ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are each hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkenyl;B is NH.sub.2 or a dicarboximide group of the general formula III ##STR2## where Z is unsubstituted or substituted phenylene, naphthylene, pyridinylene, cyclopentylene, cyclohexylene, cyclohexenylene, C.sub.2 -C.sub.4 -alkenylene or C.sub.2 -C.sub.4 -alkylene. The dicarboximides are intermediates for the compounds wherein B is NH.sub.2. The latter are used in synthesizing herbicidal compounds.
    Type: Grant
    Filed: October 30, 1989
    Date of Patent: January 14, 1992
    Inventors: Jochen Wild, Albrecht Harreus, Ulrich Schirmer, Norbert Meyer, Juergen Kast, Dieter Kolassa
  • Patent number: 5080710
    Abstract: N-aryltetrahydrophthalimide compounds of the general formula I ##STR1## where n, R.sup.1, Y, R.sup.2 and R.sup.3 have the meanings stated in the claims and description, and a method for controlling undesirable plant growth.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: January 14, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Lothar Rueb, Karl Eicken, Peter Plath, Barbara Schwalge, Karl-Otto Westphalen, Bruno Wuerzer, Norbert Meyer
  • Patent number: 5080708
    Abstract: Isoxazole(isothiazole)-5-carboxamides of the formula ##STR1## where X is oxygen or sulfur,R.sup.1 is hydrogen, substituted or unsubstituted alkyl, alkoxy, substituted or unsubstituted cycloalkyl, a 5- or 6-membered heterocyclic radical having one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen, and which may be substituted, or substituted or unsubstituted phenyl, orR.sup.2 is formyl, 4,5-dihydrooxazol-2-yl or a radical of the formula COYR.sup.5 or CONR.sup.6 R.sup.7, whereY is oxygen or sulfur,R.sup.5 ishydrogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, haloalkenyl, substituted or unsubstituted alkynyl,cycloalkyl,cycloalkenyl,substituted or unsubstituted phenyl,a 5- or 6-membered heterocyclic radical having one or two heteroatoms selected from the group consisting of oxygen, sulfur and nitrogen,cycloalkanimino, phthalimido, succinimido, or a radical ##STR2## R.sup.3 and R.sup.
    Type: Grant
    Filed: April 13, 1989
    Date of Patent: January 14, 1992
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Freund, Thomas Kuekenhoehner, Gerhard Hamprecht, Bruno Wuerzer, Karl-Otto Westphalen, Norbert Meyer, Hans Theobald
  • Patent number: 5076831
    Abstract: Substituted 1,8-naphthalenedicarboximides of the formula: ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, X, Y, and Z have the meanings recited in the disclosure are disclosed as new compounds suitable for use as antidotes in herbicidal compositions.
    Type: Grant
    Filed: November 20, 1990
    Date of Patent: December 31, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Thomas Saupe, Norbert Meyer, Peter Plath, Ulrich Schirmer, Bruno Wuerzer, Karl-Otto Westphalen, Manfred Patsch, Juergen Pfister
  • Patent number: 5074904
    Abstract: Naphthindazole-4,9-quinones of the formula ##STR1## where R.sup.1 to R.sup.5 have the meanings given in the disclosure, and their use for combating unwanted plant growth.
    Type: Grant
    Filed: August 15, 1990
    Date of Patent: December 24, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Ditrich, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen, Hartmut Laatsch
  • Patent number: 5074903
    Abstract: Cyclohexenone derivative of the formula ##STR1## where A is oxygen or NOR.sup.8, where R.sup.8 is alkyl, alkenyl, alkynyl, haloalkyl or haloalkenyl, chlorothienyl or alkoxyalkylB is O, S, SO or SO.sub.2,X is hydrogen or methoxycarbonyl,R.sup.1 is hydrogen, carbonylalkyl, benzoyl or a cation,R.sup.2 is alkyl,R.sup.3 and R.sup.4 are hydroxyl, chlorine, bromine, thioalkylcarboxyl, thiocarbonylalkyl, alkylcarbonyloxy, alkoxy, or alkylthio, or R.sup.3 and R.sup.4 together epoxy,R.sup.5 and R.sup.6 are hydrogen or methyl or R.sup.5 and R.sup.6 are together methyleneoxyethylene, andR.sup.7 is hydrogen or methyl,and herbicides containing these compounds.
    Type: Grant
    Filed: August 13, 1990
    Date of Patent: December 24, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Jahn, Michael Keil, Dieter Kolassa, Ulrich Schirmer, Bruno Wuerzer, Norbert Meyer, Johann Jung, Wilhelm Rademacher
  • Patent number: 5069710
    Abstract: N-((6-Trifluoromethylpyrimidin-2-yl)- aminocarbonyl)-2-carboalkoxybenzenesulfonamides of the general formula Ia ##STR1## where the substituents have the following meanings: R.sup.1 is hydrogen or halogen;R.sup.2 is hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.3 -C.sub.4 -alkenyl, C.sub.3 -C.sub.4 -alkynyl, C.sub.1 -C.sub.5 -haloalkyl, C.sub.3 -C.sub.5 -alkoxyalkyl, C.sub.3 -C.sub.5 -haloalkoxyalkyl or C.sub.5 -C.sub.6 -cycloalkyl,R.sup.3 is hydrogen, C.sub.1 -C.sub.2 -alkyl, allyl, propargyl or C.sub.1 -C.sub.5 -alkoxy,R.sup.4 is halogen, C.sub.1 -C.sub.2 -alkyl, C.sub.1 -C.sub.3 -alkylthio or C.sub.1 -C.sub.3 -alkylamino,R.sup.3 not denoting hydrogen or C.sub.1 -C.sub.2 -alkyl when R.sup.4 is C.sub.1 -C.sub.2 -alkyl, and their environmentally tolerated salts, processes for their manufacture, and their use.
    Type: Grant
    Filed: April 14, 1989
    Date of Patent: December 3, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Otto Westphalen, Gerhard Hamprecht, Bruno Wuerzer, Norbert Meyer
  • Patent number: 5069708
    Abstract: Herbicidal agents containing a pyrimido[5,4-e]-as-triazine-5,7-(6H,8H)-dione Ia ##STR1## (R.sup.1, R.sup.2 .dbd.H, C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -cycloalkyl, C.sub.2 -C.sub.8 -alkenyl, phenyl or benzyl, R.sup.3 .dbd.H, halogen, nitro, C.sub.1 -C.sub.8 -alkyl which may carry up to three further substituents, C.sub.2 -C.sub.6 -alkenyl, phenyl-C.sub.2 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -cycloalkyl which may carry up to 3 C.sub.1 -C.sub.4 -alkyl substituents, a 5- or 6-membered heterocyclic structure where up to 2 of the ring members are O, S or NR.sup.4 ; --CO--R.sup.4 or --CO--O--R.sup.4 ; phenyl or hetaryl, which may carry up to 3 further substituents; or ZR.sup.6 ; R.sup.4 .dbd.H, C.sub.1 -C.sub.6 -alkyl; Z.dbd.O, S or --N(R.sup.7)--; R.sup.6 .dbd.H, C.sub.1 -C.sub.6 -alkyl, phenyl or benzyl, which may carry up to 3 further substituents; R.sup.7 .dbd.H, C.sub.1 -C.sub.6 -alkyl or R.sup.6 and R.sup.
    Type: Grant
    Filed: July 3, 1990
    Date of Patent: December 3, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Norbert Meyer, Ulrich Shirmer, Peter Plath, Bruno Wuerzer, Karl-Otto Westphalen
  • Patent number: 5062884
    Abstract: N-substituted 3,4,5,6-tetrahydrophthalimides and their intermediates of the general formula I ##STR1## where A is --NO.sub.2, --NH.sub.2 or ##STR2## corresponding to the compounds Ia, Ib and Ic, B is --CH.sub.2 --, --CH.sub.2 --CHR.sup.1 --, --CH.sub.2 --CHR.sup.1 --CH.sub.2 --, --CH.dbd., --CH.dbd.CR.sup.1 -- or --CH.dbd.CR.sup.1 --CH.dbd., R.sup.1 being --H, --Cl, --Br or --CH.sub.3, D is ##STR3## depending on the terminal group B, X is --H, --Cl or --Br, Y is --H, C.sub.1 -C.sub.7 --alkyl, --Cl, --Br, --CN, --CONH.sub.2 --CO.sub.2 R.sup.2, where R.sup.2 is H, C.sub.1 -C.sub.6 -alkyl, C.sub.5 -- or C.sub.6 -cycloalkyl, C.sub.1 -C.sub.4 -alkoxy-C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkylmercapto-C.sub.2 -C.sub.4 -alkyl, propargyl, benzyl, .alpha.-phenylethyl, .alpha.-phenylpropyl, C.sub.2 -C.sub.4 -alkyl which is monosubstituted, disubstituted or trisubstituted by F or Cl, or CH.sub.3 -substituted or Cl-substituted allyl, and Z is --COOR.sup.2, --CONR.sup.3 R.sup.4, ##STR4## where R.sup.3 and R.sup.
    Type: Grant
    Filed: January 16, 1990
    Date of Patent: November 5, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter Plath, Karl Eicken, Norbert Goetz, Jochen Wild, Norbert Meyer, Bruno Wuerzer
  • Patent number: 5034047
    Abstract: Cyclohexenone derivatives of the general formula I ##STR1## where the substituents have the following meanings: R.sup.1 : substituted or unsubstituted C.sub.1 -C.sub.6 -alkyl, C.sub.3 -C.sub.6 -alkenyl or C.sub.3 -C.sub.6 -alkynyl, phenyl, benzyl or thenyl;R.sup.2 : substituted or unsubstituted C.sub.1 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkynyl or phenyl;R.sup.3 : hydrogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.10 -alkylcarbonyl, C.sub.1 -C.sub.6 -alkylsulfonyl, C.sub.1 -C.sub.4 -trialkylsilyl, C.sub.1 -C.sub.4 -dialkylphosphonyl, C.sub.1 -C.sub.4 -dialkylthiophosphonyl, C.sub.3 -C.sub.6 -alkenyl, C.sub.3 -C.sub.6 -alkenylcarbonyl, C.sub.3 -C.sub.6 -alkynyl or substituted or unsubstituted benzoyl- or phenylsulfonyl;R.sup.4 : hydrogen, cyano, halogen, C.sub.1 -C.sub.6 -alkyl or C.sub.1 -C.sub.6 -alkoxycarbonyl;A: a substituted or unsubstituted C.sub.1 -C.sub.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: July 23, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Dieter Kolassa, Juergen Kast, Thomas Kuekenhoehner, Norbert Meyer, Karl-Otto Westphalen, Bruno Wuerzer
  • Patent number: 5034049
    Abstract: Thiophene-2-carboxylic acid derivatives of the general formula I ##STR1## where R.sup.1 to R.sup.3 are each hydrogen, halogen, branched or straight-chain C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.8 -alkoxy, C.sub.1 -C.sub.6 -haloalkyl, C.sub.1 -C.sub.6 -haloalkoxy, nitro, cyano, unsubstituted phenyl or phenyl which is mono- to trisubstituted by C.sub.1 -C.sub.4 -alkyl, halogen, C.sub.1 -C.sub.5 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.5 -haloalkoxy;X is --OR.sup.4 or --NH--OR.sup.5,R.sup.4 being branched or straight-chain C.sub.3 -C.sub.10 -alkynylalkyl which is unsubstituted or substituted by halogen; andR.sup.5 being branched or straight-chain C.sub.1 -C.sub.5 -alkyl which is unsubstituted or substituted by halogen, or branched or straight-chain C.sub.3 -C.sub.10 -alkynylalkyl which is unsubstituted or substituted by halogen;with the proviso that R.sup.4 is not propargyl when R.sup.2 and R.sup.3 are both hydrogen or when R.sup.2 is halogen or R.sup.3 is chlorine, methyl or methoxy.
    Type: Grant
    Filed: January 9, 1990
    Date of Patent: July 23, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Reiner Kober, Rainer Seele, Hans-Juergen Neubauer, Thomas Saupe, Bruno Wuerzer, Norbert Meyer, Karl-Otto Westphalen
  • Patent number: 5030727
    Abstract: The process of manufacturing thiazolo-(2,3-b)-quinoazolones of the formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are defined in the disclosure, wherein either a) an anthranilamide derivative of the formula II ##STR2## where R.sup.5 and R.sup.6 are hydrogen or C.sub.1 -C.sub.4 -alkyl, is reacted with a thiazole derivative of the formula III ##STR3## where X is fluorine, chlorine, bormine, alkylsulfonyl or arylsulfonyl, or b) for certain radicals R.sup.4' from the group R.sup.4 - a thiazolo-(2,3-b)-quinazolone of the general formula IV ##STR4## is reacted with a nucleophile R.sup.4' -H, where R.sup.4' is alkoxy, alkylthio or unsubstituted or halogen-, alkyl-, haloalkyl-, nitro- or alkoxy-substituted phenoxy or thiophenyl, or an alkali metal, alkaline earth metal or ammonium salt of an alcohol.
    Type: Grant
    Filed: April 12, 1990
    Date of Patent: July 9, 1991
    Assignee: BASF Aktiengesellschaft
    Inventors: Gerhard Hamprecht, Guenther Seybold, Norbert Meyer, Bruno Wuerzer