Patents Represented by Attorney Robert M. Kennedy

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  • Insecticidal esters of certain substituted 7-oxabicyclo[2.2.1]2,5-heptadiene methanols
    Patent number: 4239773
    Abstract: Novel alcohols of the formula ##STR1## where R.sup.5 is hydrogen are useful intermediates in the preparation of insecticidal esters. The insecticides are compounds in which R.sup.5 is a substituted-vinylcyclopropanecarbonyl group, a tetramethylcyclopropanecarbonyl group, or a chlorophenyl-2-methylpropylcarbonyl group.
    Type: Grant
    Filed: December 17, 1979
    Date of Patent: December 16, 1980
    Assignee: FMC Corporation
    Inventor: William A. Van Saun, Jr.
  • Insecticidal biphenylmethyl perhaloalkylvinylcyclopropanecarboxylates
    Patent number: 4238505
    Abstract: Perhaloalkylvinylcyclopropanecarboxylates having the general formula: ##STR1## wherein one of Y and Z is a perhaloalkyl group and the other is hydrogen, halogen, or lower alkyl; and R is --OR.sup.1 where R.sup.1 is an optionally substituted biphenylmethyl radical are disclosed. The insecticidal efficacy and preparation of the compounds and their intermediates are described and exemplified.
    Type: Grant
    Filed: June 25, 1979
    Date of Patent: December 9, 1980
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Bicyclic lactone derivatives
    Patent number: 4237058
    Abstract: Novel intermediates for production of insecticidal cis-3-(2,2-disubstituted-ethenyl)-2,2-dimethylcyclopropanecarboxylates, processes for preparing the intermediates, and processes for preparing the final product insecticides via a novel bicyclic lactone intermediate are described and exemplified.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: December 2, 1980
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Derivatives of 2H-pyran-2-one
    Patent number: 4235780
    Abstract: Processes for producing a (1.alpha., 4.alpha., 5.alpha.)-6,6-dimethyl-4-halo-substituted-methyl-3-oxabicyclo[3.1.0]hexan- 2-one and its novel intermediates from known and inexpensive starting materials are described and exemplified.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: November 25, 1980
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Minoru Suda
  • Insecticidal benzylfurylmethyl perhaloalkylvinylcyclopropanecarboxylates
    Patent number: 4235927
    Abstract: Perhaloalkylvinylcyclopropanecarboxylates having the general formula ##STR1## are disclosed wherein one of Y and Z is a perhaloalkyl group and the other is hydrogen, halogen, or lower alkyl. Compounds in which R is hydroxy, halogen or lower alkoxy are intermediates for preparation of insecticidal esters in which R is an optionally substituted benzylfurylmethoxy group. The insecticidal efficacy and preparation of the compounds and intermediates therefor are described and exemplified.
    Type: Grant
    Filed: July 6, 1979
    Date of Patent: November 25, 1980
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Arylthiovinylcyclopropanecarboxylate intermediates
    Patent number: 4215069
    Abstract: Arylthiovinylcyclopropanecarboxylates having the general formula ##STR1## are disclosed. The insecticidal efficacy and preparation of the compounds and novel intermediates therefor are also described and exemplified.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: July 29, 1980
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Process for preparing dihalovinylcyclopropanecarboxylates
    Patent number: 4214097
    Abstract: Novel syntheses of dihalovinylcyclopropanecarboxylates, including potent insecticides, are described. The processes begin with the reaction between an alkenol and an orthoester to produce a .gamma.-unsaturated carboxylate, followed by the catalyzed addition of a carbon tetrahalide to the double bond and dehydrohalogenation to produce a cyclopropane derivative.
    Type: Grant
    Filed: January 20, 1978
    Date of Patent: July 22, 1980
    Assignee: Sagami Chemical Research Center
    Inventors: Kiyoshi Kondo, Kiyohide Matsui, Akira Negishi, Yuriko Takahatake
  • Arylthiovinylcyclopropanecarboxylate insecticides
    Patent number: 4200644
    Abstract: Arylthiovinylcyclopropanecarboxylates having the general formula ##STR1## are disclosed. The insecticidal efficacy and preparation of the compounds and novel intermediates therefor are also described and exemplified.
    Type: Grant
    Filed: January 26, 1978
    Date of Patent: April 29, 1980
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Insecticidal (.beta.-phenyl-.beta.-substituted-vinyl)cyclopropanecarboxylates
    Patent number: 4183942
    Abstract: New insecticidal (.beta.-phenyl-.beta.-substituted-vinyl)cyclopropanecarboxylates in which the .beta.-substituent may be halogen or lower haloalkyl are described and their preparation and insecticidal utility are exemplified.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: January 15, 1980
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Process for preparing high cis 3-(2,2,2-trichloroethyl)-2,2-dimethylcyclopropane-1-carboxylates
    Patent number: 4166064
    Abstract: A process is described whereby esters of 3-(2,2,2-trichloroethyl)-2,2-dimethylcyclopropane-1-carboxylic acid are prepared predominantly in their cis isomer form. The process comprises treating a 4,6,6,6-tetrachloro-3,3-dimethylhexanoate with an alkali metal tert-alkoxide under controlled conditions of temperature in the presence of a defined solvent-cosolvent mixture. The products of the process are intermediates in the production of pyrethroid insecticides.
    Type: Grant
    Filed: February 13, 1978
    Date of Patent: August 28, 1979
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Akira Negishi, Kikuo Sugimoto
  • Insecticidal [.beta.-(substituted-phenyl)vinyl]cyclopropanecarboxylates
    Patent number: 4160842
    Abstract: New insecticidal (.beta.-phenylvinyl)cyclopropanecarboxylates having on the phenyl ring one or more substituents such as halogen, cyano, nitro, lower alkyl, aryl, aralkyl, lower alkoxy, lower alkylthio, aryloxy, arylthio, lower haloalkyl, di(lower alkyl)amino, or methylenedioxy are described, and their preparation and insecticidal utility are exemplified.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: July 10, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Intermediates for insecticidal (.beta.-phenyl-.beta.-substituted-vinyl)cyclopropanecarboxylates
    Patent number: 4157447
    Abstract: Intermediates for insecticidal (.beta.-phenyl-.beta.-substituted-vinyl)cyclopropanecarboxylates in which the .beta.-substituent may be halogen, lower alkyl, lower haloalkyl, cyano, carbomethoxy, or carbethoxy are described and exemplified.
    Type: Grant
    Filed: February 21, 1978
    Date of Patent: June 5, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Insecticidal (.beta.-phenylvinyl)cyclopropanecarboxylates
    Patent number: 4157397
    Abstract: New insecticidal (.beta.-phenylvinyl)cyclopropanecarboxylates are described, and their preparation and insecticidal utility are exemplified.
    Type: Grant
    Filed: August 27, 1976
    Date of Patent: June 5, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Dihydropyrazolone herbicide
    Patent number: 4115096
    Abstract: The new herbicide, 2-cyclohexyl-4-iodo-1,5-dimethyl-1,2-dihydro-3H-pyrazol-3-one, is described and its preparation and use to control undesired plant growth are exemplified.
    Type: Grant
    Filed: November 4, 1977
    Date of Patent: September 19, 1978
    Assignee: FMC Corporation
    Inventor: Robert Earl Sticker