Patents Assigned to Great Lakes Chemical Konstanz GmbH
  • Method for producing unsymmetrically substituted biphenyls
    Patent number: 6121480
    Abstract: The invention concerns a method for the production of unsymmetrically substituted cyanobiphenyls by the slow addition of an aryl Grignard compound to an optionally substituted bromobenzonitrile in the presence of a palladium complex catalyst.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: September 19, 2000
    Assignee: Great Lakes Chemical Konstanz GmbH
    Inventors: Bernd Kohler, Manfred Langer, Thomas Mosandl