Reactant Contains -coo- Group Patents (Class 568/354)
  • Patent number: 4568478
    Abstract: There is disclosed a solution of at least one fluoroxy compound, wherein said solution has a fluoroxy compound concentration of at least 0.5 meq/liter; said concentration containing about 35 to 100% of an acyl hypofluorite, based on the total number of equivalents of fluoroxy compounds present. The acyl hypofluorite has the formula X(CF.sub.2).sub.n COOF wherein X is H or F and n is 5 to 16. The solution is prepared by treating a suspension of a corresponding specified alkali salt with excess F.sub.2, and is useful as a selective fluorinating agent.
    Type: Grant
    Filed: April 18, 1984
    Date of Patent: February 4, 1986
    Assignee: E. I. Dupont de Nemours and Company
    Inventors: William J. Middleton, Shlomo Rozen
  • Patent number: 4431827
    Abstract: Novel lactonic derivatives and their use as starting materials for preparing macrocyclic hydroxyketones useful as intermediates in the preparation of fragrant compounds.
    Type: Grant
    Filed: April 5, 1982
    Date of Patent: February 14, 1984
    Assignee: Firmenich S.A.
    Inventor: Charles Fehr
  • Patent number: 4304942
    Abstract: A process is provided for producing substituted 2-cyclopentenones represented by the general formula: ##STR1## where R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 are hydrogen or lower aliphatic hydrocarbyl groups. The process comprises treating a nitroalkane with a substituted acrylic acid ester in the presence of a base, followed by saponification, to yield a substituted 4-nitropentanoic acid which acid is then treated with strong acid under dehydrative conditions to yield the subject 2-cyclopentenone.
    Type: Grant
    Filed: May 21, 1980
    Date of Patent: December 8, 1981
    Assignee: SCM Corporation
    Inventor: T. L. Ho
  • Patent number: 4284820
    Abstract: 4-Formyl-3,6,6-trimethylbicyclo[3.1.0]hex-3-ene is oxidized in one vessel by a peroxy acid via 3,4-epoxy-4-formyl-3,6,6-trimethylbicyclo[3.1.0]hexane and 3,4-epoxy-4-formyloxy-3,6,6-trimethylbicyclo[3.1.0]hexane to 3,6,6-trimethyl-3-hydroxybicyclo[3.1.0]hexan-4-one. The four compounds are novel and are intermediates to pyrethroid insecticides.
    Type: Grant
    Filed: September 23, 1980
    Date of Patent: August 18, 1981
    Assignee: Shell Oil Company
    Inventor: Johannes L. M. Syrier
  • Patent number: 4202822
    Abstract: Derivatives, analogs, and congeners of prostane having a 1-(hydroxymethyl)-1-oxo-prostane structure in the F.sub.1 series.
    Type: Grant
    Filed: December 8, 1977
    Date of Patent: May 13, 1980
    Assignee: American Cyanamid Company
    Inventor: Allan Wissner