Patents Represented by Attorney Henry R. Ertelt
  • Patent number: 4299776
    Abstract: .alpha.-cyano esters are prepared by reacting an acyl halide with an aldehyde in a homogeneous mixture of substantially water-miscible aprotic solvent and an aqueous solution of water-soluble cyanide salt.
    Type: Grant
    Filed: June 24, 1980
    Date of Patent: November 10, 1981
    Assignee: FMC Corporation
    Inventor: Charles E. Hatch, III
  • Patent number: 4283341
    Abstract: Lactones of the formula ##STR1## wherein R is hydrogen or a CX.sub.3 group, and each X is a chlorine or bromine atom, are converted to the known cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acids or lower alkyl esters, from which pyrethroid insecticides are obtained.
    Type: Grant
    Filed: October 30, 1979
    Date of Patent: August 11, 1981
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Daiei Tunemoto
  • Patent number: 4281014
    Abstract: Insecticidal compositions containing N-aminosulfenyl derivatives of carbofuran are stabilized against spontaneous decomposition by incorporating an epoxide compound therein.
    Type: Grant
    Filed: June 4, 1980
    Date of Patent: July 28, 1981
    Assignee: FMC Corporation
    Inventor: Jerome Yaffe
  • Patent number: 4272441
    Abstract: Carbamates are prepared in one step by reacting an alcohol, phosgene, and an amine in the absence of an acid scavenger.
    Type: Grant
    Filed: March 13, 1980
    Date of Patent: June 9, 1981
    Assignee: FMC Corporation
    Inventors: Robert E. Keay, Edward F. Orwoll, John A. Price
  • Patent number: 4271181
    Abstract: Compositions comprising, in combination, the insecticides endosulfan and 2-dihalovinyl-3,3-dimethylcyclopropanecarboxylates exhibit synergistic insecticidal activity. The novel compositions are exemplified and their use for controlling insects is demonstrated.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: June 2, 1981
    Assignee: FMC Corporation
    Inventor: Paul H. Eastburg
  • Patent number: 4268521
    Abstract: Compositions comprising, in combination, the insecticides methomyl and 2-dihalovinyl-3,3-dimethylcyclopropanecarboxylates exhibit synergistic insecticidal activity. The novel compositions are exemplified and their use for controlling insects is demonstrated.
    Type: Grant
    Filed: December 22, 1976
    Date of Patent: May 19, 1981
    Assignee: FMC Corporation
    Inventor: James J. Knabke
  • Patent number: 4254051
    Abstract: Certain alpha-cyano esters are prepared by reacting an acyl halide with an aldehyde in a substantially water-immiscible aprotic solvent and an aqueous solution of water-soluble cyanide salt in the presence of an amphoteric surfactant rate-promoting agent.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: March 3, 1981
    Assignee: FMC Corporation
    Inventor: Jonathan S. Baum
  • Patent number: 4254279
    Abstract: Optically active 1-Trichloromethyl-3-methyl-2-butenyl acetoacetate is prepared by resolving the racemic ester via a crystalline enamine derivative.
    Type: Grant
    Filed: September 24, 1979
    Date of Patent: March 3, 1981
    Assignee: FMC Corporation
    Inventor: Charles E. Hatch, III
  • Patent number: 4254050
    Abstract: Certain alpha-cyano esters are prepared by reacting an acyl halide with an aldehyde in a substantially water-immiscible aprotic solvent and an aqueous solution of water-soluble cyanide salt in the presence of an amine or cryptate rate-promoting agent.
    Type: Grant
    Filed: June 6, 1980
    Date of Patent: March 3, 1981
    Assignee: FMC Corporation
    Inventor: Jonathan S. Baum
  • Patent number: 4254052
    Abstract: Certain alpha-cyano esters are prepared by reacting an acyl halide with an aldehyde in a substantially water-immiscible aprotic solvent and an aqueous solution of water-soluble cyanide salt in the presence of a rate-promoting agent selected from acid salts of tertiary amines.
    Type: Grant
    Filed: June 13, 1980
    Date of Patent: March 3, 1981
    Assignee: FMC Corporation
    Inventor: Jonathan S. Baum
  • Patent number: 4254282
    Abstract: Lactones of the formula ##STR1## wherein R is hydrogen or a CX.sub.3 group, and each X is a chlorine or bromine atom, are converted to the known cis-3-(2,2-dihalovinyl)-2,2-dimethylcyclopropanecarboxylic acids or lower alkyl esters, from which pyrethroid insecticides are obtained.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: March 3, 1981
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Toshiyuki Takashima, Daiei Tunemoto
  • Patent number: 4229593
    Abstract: Process to prepare 3-(2,2-dichloroethenyl)-2,2-di-methylcyclopropanecarboxylic acid enriched with the (+)-cis isomer.
    Type: Grant
    Filed: May 29, 1979
    Date of Patent: October 21, 1980
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Minoru Suda
  • Patent number: 4223159
    Abstract: 3-Methyl-2-butenyl 3,3-dimethyl-4-pentenoate, by-product in the condensation between 3-methyl-2-butene-1-ol and a lower alkyl orthoacetate, can be recycled into the condensation by alkoxylating it with a lower alkyl alcohol or orthoacetate in the presence of a basic ester exchange catalyst.
    Type: Grant
    Filed: April 26, 1979
    Date of Patent: September 16, 1980
    Assignee: FMC Corporation
    Inventors: John A. Price, Edward F. Orwoll
  • Patent number: 4214004
    Abstract: Substituted [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates, as well as processes, uses, and intermediates thereto, are disclosed. The substituted [1,1'-biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates control a broad spectrum of insects as well as acarids.
    Type: Grant
    Filed: December 4, 1978
    Date of Patent: July 22, 1980
    Assignee: FMC Corporation
    Inventor: Ernest L. Plummer
  • Patent number: 4188492
    Abstract: Treatment of 3-(2,2-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylic acids and esters with aluminum bromide, the reaction product of aluminum and a bromoalkane, or HBr and the product of the reaction of HBr with aluminum or an aluminum salt produces the 3-(2,2-dibromovinyl)-2,2-dimethylcyclopropane analogs.
    Type: Grant
    Filed: January 3, 1979
    Date of Patent: February 12, 1980
    Assignee: FMC Corporation
    Inventors: Kiyoshi Kondo, Kiyohide Matsui
  • Patent number: 4178384
    Abstract: The pyrethroid insecticide, 3-phenoxybenzyl 3-(.beta.,.beta.-dichlorovinyl)-2,2-dimethylcyclopropanecarboxylate, is a potent repellent for a variety of insect pests, including acarids. This pyrethroid provides long-lasting protection when incorporated as the active component in repellent compositions and applied to areas from which it is desired to exclude such insect pests. The repellency extends to a broad range of species, including cockroaches, true bugs, flies, mites, aphids, and beetles, as well as mature and immature moths and butterflies.
    Type: Grant
    Filed: January 13, 1977
    Date of Patent: December 11, 1979
    Assignee: FMC Corporation
    Inventor: Kenneth J. Ensing, deceased
  • Patent number: 4162366
    Abstract: New insecticides, organic esters wherein the alcohol moiety is .alpha.-trifluoromethyl-3-phenoxybenzyl alcohol and the acid moiety is a pyrethroid carboxylic acid, are described and shown to control a broad spectrum of insects, including acarids.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: July 24, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Patent number: 4152454
    Abstract: Compositions comprising, in combination, N'-aryl-N-methylformamidines and 3-phenoxybenzyl carboxylates exhibit synergistic insecticidal activity. The novel compositions are exemplified and their use for controlling insects is demonstrated.
    Type: Grant
    Filed: April 21, 1978
    Date of Patent: May 1, 1979
    Assignee: FMC Corporation
    Inventor: Frederick W. Plapp, Jr.
  • Patent number: 4152455
    Abstract: New insecticides, organic esters wherein the alcohol moiety is .alpha.-trifluoromethyl-3-phenoxybenzyl alcohol and the acid moiety is a pyrethroid carboxylic acid, are described and shown to control a broad spectrum of insects, including acarids.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: May 1, 1979
    Assignee: FMC Corporation
    Inventor: John F. Engel
  • Patent number: 4130657
    Abstract: [1,1'-Biphenyl]-3-ylmethyl 3-(2,2-dihaloethenyl)-2,2-dimethylcyclopropanecarboxylates are disclosed and shown to control a broad spectrum of insects as well as acarids.
    Type: Grant
    Filed: October 20, 1977
    Date of Patent: December 19, 1978
    Assignee: FMC Corporation
    Inventor: Ernest L. Plummer