Patents Represented by Attorney Marian T. Thomson
  • Patent number: 5627131
    Abstract: Herbicidal compositions containing 4-benzoylisoxazole compounds and antidotal compounds therefor to reduce injury to various crops, particularly corn, from the phytotoxic effects of 4-benzoylisoxazole herbicides when used alone or in combination with additional pesticidally active ingredients. Methods for reducing phytotoxicity or injury to crop plants, particularly corn crops, due to 4-benzoylisoxazole herbicides are also described.
    Type: Grant
    Filed: January 9, 1995
    Date of Patent: May 6, 1997
    Assignee: Zeneca Limited
    Inventors: John M. Shribbs, David L. Lee
  • Patent number: 5599774
    Abstract: Substituted N-arylindoles, a process for producing them and their use as herbicides. In particular, substituted N-arylindoles of the formula ##STR1## are disclosed in which: R is hydrogen; halogen; nitro; cyano; alkyl; alkoxy; alkenyloxy; alkynyloxy; alkoxyalkyl; carbonylalkoxy; alkyloxyalkoxy; cyanoalkoxy; benzyloxy; alkoxycarbonylalkoxy; alkylcarbonylalkoxy; haloalkyl; hydroxalkyl; formyl; azido; carboxy or its salts; COOalkyl; amino; substituted amino wherein the substituents are alkyl, alkoxy, hydroxy, formyl, alkylcarbonyl, substituted alkylcarbonyl substituted with carboxy or alkoxycarboxy, alkylsulfonyl, haloalkylsulfonyl, aminocarbonyl, (di)alkylaminocarbonyl, alkoxycarbonyl, alkoxyalkyl, hydroxycarbonylalkyl, alkoxycarbonylalkyl, amino or (di)alkyl amino; carboxyamido; substituted carboxyamido wherein said substituents can be selected from alkyl, alkylsulfonyl, and haloalkylsulfonyl; sulfonamido wherein the N is substituted with hydrogen and/or alkyl; YR.sup.4 wherein Y is O or S(O).sub.m and R.sup.
    Type: Grant
    Filed: December 31, 1992
    Date of Patent: February 4, 1997
    Assignee: Imperial Chemical Industries PLC
    Inventors: Ferenc M. Pallos, Christopher J. Mathews
  • Patent number: 5595958
    Abstract: Herbicidal 3-substituted pyridine compounds and derivatives thereof of the formula: ##STR1## wherein Ar is a substituted or unsubstituted 5- or 6-membered heteroaryl group having 1, 2 or 3 ring nitrogen atoms with the remainder of the ring atoms being carbon; a substituted or unsubstituted 5-membered heteroaryl group having a ring heteroatom of oxygen or sulfur with the remainder of the ring atoms being carbon; or a substituted or unsubstituted 5-membered heteroaryl group having one ring nitrogen atom and either an oxygen or sulfur ring heteroatom with the remainder of the ring atoms being carbon. Herbicidal compositions containing such 3-substituted pyridine compounds and derivatives thereof and methods of controlling undesirable vegetation employing these compounds and derivatives are also disclosed. The compounds in which XR is hydroxyl are also useful as intermediates for producing the disclosed 3-substituted pyridine derivatives.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: January 21, 1997
    Assignee: Zeneca Limited
    Inventors: Hsiao-Ling M. Chin, Nhan H. Nguyen, David B. Kanne, David L. Lee
  • Patent number: 5585513
    Abstract: A compound of the formula: ##STR1## useful as an intermediate in the preparation of fungicides.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 17, 1996
    Assignee: Zeneca Limited
    Inventors: Ian R. Matthews, Christoher R. A. Godfrey, John M. Clough
  • Patent number: 5585327
    Abstract: 4-substituted pyridyl-3-carbinols of the formula ##STR1## wherein R is hydrogen, or an acyl, alkyl or carbamyl group exhibit desirable preemergent and postemergent herbicidal activity. Also disclosed are herbicidal compositions comprising such compounds and methods of controlling undesirable vegetation employing such compounds. The compounds wherein AR is hydroxyl serve as useful intermediates for the production of the alpha-benzyl substituted compounds as well as exhibiting herbicidal activity.
    Type: Grant
    Filed: May 2, 1994
    Date of Patent: December 17, 1996
    Assignee: Zeneca Limited
    Inventors: Hsiao-Ling Chin, Yi-Qiu Wei, Nhan H. Nguyen, Michael P. Ensminger, Linda Willitts, Derek P. Dagarin
  • Patent number: 5565413
    Abstract: Herbicidal compounds have the formula ##STR1## in which: R.sub.1 is 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.8 alkoxyalkyl; nitro; cyano; thiocyano; or R.sub.7 S(O).sub.m - where m is 0, 1 or 2 and R.sub.7 is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 haloalkyl;R.sub.2 and R.sub.3 are independently 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.2 -C.sub.8 alkoxyalkyl; nitro; R.sub.8 S(O).sub.2 O- or R.sub.8 S(O).sub.n - where n is 0, 1 or 2 and R.sub.8 is C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 haloalkyl, C.sub.1 -C.sub.4 cyanoalkyl, phenyl or benzyl; NR.sub.9 R.sub.10 where R.sub.9 and R.sub.10 are independently hydrogen or C.sub.1 -C.sub.4 alkyl; R.sub.11 CO- where R.sub.11 is C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.4 alkoxy, SO.sub.2 NR.sub.12 R.sub.13 where R.sub.12 and R.sub.13 are independently hydrogen, C.sub.1 -C.sub.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: October 15, 1996
    Assignee: Zeneca Limited
    Inventor: David B. Kanne
  • Patent number: 5563112
    Abstract: A herbicidal composition comprising herbicidally effective amounts of a diphenyl ether of the formula ##STR1## at least one nitrogen containing fertilizer that is present in an amount that increases the herbicidal activity of said diphenyl ether; andone or more adjuvants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 8, 1996
    Assignee: Zeneca Limited
    Inventor: Clyde J. Barnes III
  • Patent number: 5506195
    Abstract: A method of selectively controlling undesirable vegetation in corn by applying an herbicidally effective amount of 2-(2'-nitro-4'-methylsulfonylbenzoyl)-1,3-cyclohexanedione to the locus of such vegetation.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: April 9, 1996
    Assignee: Zeneca Limited
    Inventors: Michael P. Ensminger, John M. Shribbs
  • Patent number: 5504173
    Abstract: Process for preparing the (E)-isomer of a compound (II) by contacting the (E) or (Z) isomer of the 2-methylphenyl precursor, or a mixture of both, with bromine in an organic solvent, in the presence of a polymeric base and light.
    Type: Grant
    Filed: February 9, 1995
    Date of Patent: April 2, 1996
    Assignee: Zeneca Limited
    Inventors: Alfred G. Williams, Nicholas R. Foster
  • Patent number: 5491156
    Type: Grant
    Filed: February 16, 1994
    Date of Patent: February 13, 1996
    Assignee: Zeneca Limited
    Inventors: Ian T. Streeting, deceased, Paul A. Worthington
  • Patent number: 5468903
    Abstract: A process for preparing a compound comprising a monocyclic aromatic ring having at least a first substituent and a substituted sulphonyl group at the position para to the first substituent, the process comprising mixing a reactant comprising the monocyclic aromatic ring with the first substituent and hydrogen in the position of the ring para to the first substituent, with a sulphonic acid halide derivative in the presence of a naturally occurring or synthetic zeolite capable of catalyzing a sulphonylation reaction between the reactant and the sulphonic acid halide, under conditions in which the reaction will occur.
    Type: Grant
    Filed: March 1, 1993
    Date of Patent: November 21, 1995
    Assignee: Zeneca Limited
    Inventors: Kenneth R. Randles, Brian G. Gott, Stephen T. A. K. Daley
  • Patent number: 5466693
    Abstract: A fungicidal, herbicidal or plant growth regulating composition for application to an aquatic environment, the composition comprising a solid carrier, a fungicidal, herbicidal or plant growth regulating active ingredient, and an oil with which the said active ingredient is miscible or in which it is capable of being dispersed, said oil being water-immiscible, having a specific gravity of less than 1 and a boiling point at atmospheric pressure of greater than 150.degree. C.The compostitions are particularly useful for application to a paddy-field to assist in the cultivation of rice.
    Type: Grant
    Filed: September 23, 1993
    Date of Patent: November 14, 1995
    Assignee: Imperial Chemical Industries PLC
    Inventors: Roger P. Warrington, Guy Ramsay, Neal R. Bird
  • Patent number: 5466662
    Abstract: A method for killing or controlling weeds in a soya crop, which method comprises applying to the crop or to the location thereof a compound of formula (I): ##STR1## in an amount sufficient to kill the weeds but insufficient to kill the crop.
    Type: Grant
    Filed: April 26, 1994
    Date of Patent: November 14, 1995
    Assignee: Zeneca Limited
    Inventors: Harjinder Singhbansal, John C. Ormrod
  • Patent number: 5451681
    Abstract: A process for preparing a compound of formula (I) ##STR1## wherein X is oxygen or sulphur, by (a) reacting a substituted ortho-nitro or -nitroso phenol or a substituted ortho-nitro or -nitroso thiophenol with an alkali metal dithionite reducing agent in an alkaline reaction medium in the presence of carbon disulphide, to form a substituted 2-mercaptobenz-oxazole or -thiazole, acidifying the reaction mixture and collecting the 2-mercaptobenz-oxazole or -thiazole; and then (b) reacting the 2-mercaptobenz-oxazole or -thiazole with a compound of formula (IV)CF.sub.2 .dbd.CH--CH.sub.2 --CH.sub.2 --L (IV)wherein L is a good leaving group.
    Type: Grant
    Filed: December 29, 1994
    Date of Patent: September 19, 1995
    Assignee: Zeneca Limited
    Inventors: Harjinder S. Bansal, Peter J. V. Cleare
  • Patent number: 5451566
    Abstract: Herbicidal 1-aryl pyrrolopyridine compounds of the formula: ##STR1## wherein at least one of Y, Z or J is N or N--O and the remainder of Y, Z or J is C--R.
    Type: Grant
    Filed: November 17, 1993
    Date of Patent: September 19, 1995
    Assignee: Zeneca Limited
    Inventor: Christopher J. Mathews
  • Patent number: 5451594
    Abstract: The invention provides compounds of formula (I) having nematicidal, insecticidal, acaricidal and fungicidal properties, compositions comprising them and processes and intermediates for their preparation: ##STR1## wherein: X is oxygen or sulphur;n is 0, 1 or 2;R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are as described in the specification.
    Type: Grant
    Filed: September 10, 1993
    Date of Patent: September 19, 1995
    Assignee: Zeneca Limited
    Inventors: Steven Fitzjohn, Michael P. Robinson, Michael D. Turnbull, Alison M. Smith, Roger Salmon, Robin Taylor
  • Patent number: 5444038
    Abstract: This invention relates to substituted aryl indazoles, a process for producing them and their use as herbicides. In particular this invention relates to substituted aryl indazoles of the formula ##STR1## wherein all variables are as defined in the specification.
    Type: Grant
    Filed: March 2, 1993
    Date of Patent: August 22, 1995
    Assignee: Zeneca Limited
    Inventors: Donald R. James, Don R. Baker, Steven D. Mielich, William J. Michaely, Steven Fitzjohn, Christopher G. Knudsen, Christopher Mathews, John M. Gerdes
  • Patent number: 5439910
    Abstract: Compounds having formula (I) ##STR1## wherein R.sup.1, R.sup.2 and A are defined as in the specification. The compounds are useful as fungicides.
    Type: Grant
    Filed: October 12, 1993
    Date of Patent: August 8, 1995
    Assignee: Zeneca Limited
    Inventors: Paul J. de Fraine, John M. Clough, Paul A. Worthington, Brian L. Pilkington, Ian R. Matthews
  • Patent number: 5438066
    Abstract: Fungicidal and insecticidal compounds having the general formula (I): ##STR1## or a stereoisomer thereof, wherein A is CH or N; B is OCH.sub.3 or NHCH.sub.3 ; one of L and M is N and the other is S or O; X is an optionally substituted carbocyclic or heterocyclic group; and n is 0 or 1.
    Type: Grant
    Filed: October 27, 1993
    Date of Patent: August 1, 1995
    Assignee: Zeneca Limited
    Inventor: Ian R. Matthews
  • Patent number: 5430007
    Abstract: Novel substituted pyrazolo-rings fused to nitrogen containing heterocyclic rings having the following formula ##STR1## in which at least one of Y, Z or W is N or N-O and the remainder of Y, Z or W is C-R wherein the remainder of the variables are as defined in the specification and agriculturally effective salts thereof are herbicides.
    Type: Grant
    Filed: January 3, 1994
    Date of Patent: July 4, 1995
    Assignee: Zeneca Limited
    Inventors: William J. Michaely, Jeff K. Curtis, Christopher G. Knudsen