Thiocarbonyl Containing (e.g., Thioketone Containing, Etc.) Patents (Class 568/20)
  • Patent number: 4935510
    Abstract: Ammonium hydroxide is used in the recovery of a thiono compound prepared by reacting an organic carbonyl compound with phosphorus pentasulfide to improve the product yield.
    Type: Grant
    Filed: June 7, 1989
    Date of Patent: June 19, 1990
    Assignee: Ethyl Corporation
    Inventor: Barbara C. Stahly
  • Patent number: 4724267
    Abstract: Bis(haloacylaromatic) compounds have been made by a new process in which monohaloacylated aromatic compounds have been reacted by a coupling reaction. These bis(haloacylaromatic) compounds can be employed as monomers in the preparation of polyesters and polyamides which have easy processability. The monohaloacylated compound is coupled by reacting two moles of the monomer with a carbon or sulfur compound containing at least two halogen atoms in the presence of a Friedel-Crafts catalyst.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: February 9, 1988
    Assignee: The Dow Chemical Company
    Inventors: George M. St. George, Marlin E. Walters
  • Patent number: 4663452
    Abstract: An organic carbonyl compound is thiated to the corresponding thiono compound by reacting it with phosphorus pentasulfide in the presence of an alkali metal bicarbonate and a hydrocarbon diluent. In preferred embodiments of the invention, the carbonyl compound is an amide, especially an aromatic amide, and the diluent is an inert hydrocarbon having a boiling point in the range of about 50.degree.-150.degree. C.
    Type: Grant
    Filed: August 29, 1985
    Date of Patent: May 5, 1987
    Assignee: Ethyl Corporation
    Inventor: Kenneth C. Lilje
  • Patent number: 4661617
    Abstract: Substituted alkenoates and alkanoates, intermediates therefor, synthesis thereof, and their use for the control of pests.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: April 28, 1987
    Assignee: Sandoz Ltd.
    Inventor: Clive A. Henrick
  • Patent number: 4421935
    Abstract: Process for the preparation of Diels-Alder type adducts by reacting a compound with formula ##STR1## or the corresponding hydrated derivative, wherein R.sup.1, R.sup.2, and R.sup.4 are H or lower alkyl, R.sup.3 is lower alkyl, X is O,S, (O--CR.sup.5 R.sup.6 R.sup.7).sub.2 or ##STR2## wherein R.sup.5, R.sup.6 and R.sup.7 an H or lower alkyl, n is 2-5 and Y is H, alkyl or alkenyl or Y and R.sup.2 together form an alkylene group which may contain one or more substituents, with a cyclopentadiene and/or an oligomer thereof in the presence of an aqueous solution of a strong proton donor having a conjugate with a low nucleophilicity.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: December 20, 1983
    Assignee: Shell Oil Company
    Inventor: Pieter A. Verbrugge
  • Patent number: 4301081
    Abstract: The invention includes novel alkali metal complex compounds (and processes for their preparation) which are useful, inter alia for the hydrogenation of alkali metals at room temperature or below room temperature to form hydrides or nitrides.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: November 17, 1981
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Borislav Bogdanovic
  • Patent number: 4229354
    Abstract: The invention includes novel alkali metal complex compounds (and processes for their preparation) which are useful, inter alia for the hydrogenation of alkali metals at room temperature or below room temperature to form hydrides or nitrides.
    Type: Grant
    Filed: May 12, 1978
    Date of Patent: October 21, 1980
    Assignee: Studiengesellschaft Kohle mbH
    Inventor: Borislav Bogdanovic