Carbon To Carbon Unsaturation Containing Patents (Class 558/462)
  • Patent number: 4994598
    Abstract: A method for the oxidative conversion of feed organic compounds to product organic compounds, particularly, the conversion of toluene to bibenzyl and stilbene and the conversion of acetonitrile to acrylonitrile, in which the feed compounds are contacted with a free oxygen-containing gas and a contact material, comprising at least one Group IIA metal or lanthanum and oxygen; at least two Group IIA metals, Lanthanum Series metals, zinc, or titanium and oxygen; at least one Group IA metal, at least one Group IIA metal, Lanthanum Series metals, zinc or titanium and oxygen; at least one Group IA metal or Group IIA metal, phosphorous and oxygen; cobalt, at least one of zirconium, zinc, nickel, indium, lead or bismuth, phosphorous, at least one Group IA metal and oxygen; or cobalt, at least one Group IA metal, silicon and oxygen.
    Type: Grant
    Filed: February 22, 1990
    Date of Patent: February 19, 1991
    Assignee: Phillips Petroleum Company
    Inventors: James B. Kimble, John H. Kolts
  • Patent number: 4945180
    Abstract: A novel process for the preparation of E-2-propyl-2-pentenoic acid and its physiologically compatible salts is described, in which di-n-propyl-ketone-cyanohydrin is used as the starting compound. The compound is either(a) dehydrated with thionyl chloride and the acid nitrile formed is subsequently saponified with a stoichiometric excess of potassium hydroxide, or(b) is initially converted into 2-hydroxy-2-propyl-pentanoic acid and the latter is subsequently dehydrated in the presence of a less than stoichiometric quantity of a tertiary amine at a temperature of at least 200.degree. C.The free acid is optionally converted into the salt form, preferably using the corresponding salts of carbon dioxide in an aqueous acetone solution.
    Type: Grant
    Filed: June 2, 1988
    Date of Patent: July 31, 1990
    Assignee: Desitin Arzneimittel GmbH
    Inventor: Helmut Schafer
  • Patent number: 4904812
    Abstract: Unsaturated nitriles are prepared from lactones and NH.sub.3 by a process in which the reaction of the lactone with NH.sub.3 is carried out in the presence of a zeolite as a catalyst.A particularly suitable starting material is caprolactone and particularly suitable catalysts are zeolites of the pentasil type, for example aluminosilicate zeolites.
    Type: Grant
    Filed: December 7, 1988
    Date of Patent: February 27, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Wolfgang Hoelderich, Matthias Schwarzmann
  • Patent number: 4889948
    Abstract: A process for synthesizing ethers of alkyl alpha(hydroxymethyl)-acrylate by reacting alkyl acrylate and formaldehyde in the presence of a DABCO catalyst. The ethers may be used as cross-linking agents for thermoplastic polymers. Further, these ethers in turn enable synthesis of cyclopolymers that may show promising biological activity.
    Type: Grant
    Filed: August 18, 1987
    Date of Patent: December 26, 1989
    Assignee: University of Southern Mississippi
    Inventors: Lon J. Mathias, Selim H. Kusefoglu
  • Patent number: 4625046
    Abstract: Alpha-tertiary nitriles, a process for making the same, and fragrant substances containing the same, in which the nitriles having the general formula ##STR1## wherein R.sub.1 represents an alkyl radical with 1-3 carbon atoms,R.sub.2 and R.sub.3 stand for hydrogen and an alkyl radical with 1-3 carbon atoms, andR.sub.4 is an allyl or benzyl radical.
    Type: Grant
    Filed: May 1, 1984
    Date of Patent: November 25, 1986
    Assignee: Consortium fur elektrochemische Industrie GmbH
    Inventor: Helmut Gebauer
  • Patent number: 4609635
    Abstract: Regeneration of an ammoxidation catalyst which is exhausted as a result of prolonged exposure to ammoxidation conditions, containing oxides of Mo, Bi, P, Fe, Co, Ni and possibly an alkali metal, particularly K, on a granular support, particularly silica, by means of a method including:the impregnation of the granules of spent catalyst with an aqueous molybdic acid solution, or with an aqueous solution of partially or totally salified molybdic acid in the form of the ammonium salt, with a volume of impregnation solution less than the total pore volume of the catalyst subjected to regeneration;the drying of the impregnated granules at a temperature of from 100.degree. to 200.degree. C.;the calcining of the dried granules at a temperature of from 250.degree. to 450.degree. C., solely when the impregnation is with an aqueous solution of partially or totally salified molybdic acid.
    Type: Grant
    Filed: April 17, 1985
    Date of Patent: September 2, 1986
    Assignee: Enichem Sintesi S.p.A.
    Inventors: Roberto Canavesi, Ferdinando Ligorati, Roberto Ghezzi