Patents by Inventor John B. Sapp, Jr.

John B. Sapp, Jr. has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Synthesis of substituted aryl sulfides
    Patent number: 4766242
    Abstract: Provided is a novel and effective process for the synthesis of aryl sulfides substituted with an alkanoylamino or (N-alkyl)alkanoylamino substituent. The process comprises reacting an appropriately substituted aromatic compound with a sulfur dihalide, preferably sulfur dichloride, in the presence of an alkali metal tetrafluoroborate catalyst and an ether comprising solvent.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: August 23, 1988
    Assignee: Hoechst Celanese Corporation
    Inventors: Harry T. Hanson, John B. Sapp, Jr.
  • Synthesis of alkoxy and phenoxy substituted aryl sulfides
    Patent number: 4393241
    Abstract: Provided is a novel process for the synthesis of aryl sulfides substituted with an alkoxy or phenoxy substituent. The process comprises reacting an alkoxy or phenoxy substituted aromatic compound with a sulfur dihalide, preferably sulfur dichloride, in the presence of an alkali metal tetrafluoroborate catalyst, with the amount of said aromatic reactant compound preferably being sufficient to solvate the sulfur dichloride and catalyst sufficiently to allow the reaction to occur.
    Type: Grant
    Filed: February 1, 1982
    Date of Patent: July 12, 1983
    Assignee: Celanese Corporation
    Inventors: Harry T. Hanson, John B. Sapp, Jr.