Patents Examined by N. S. Rizzo
  • Dehalogenation process of a penicillanic acid derivative
    Patent number: 4554104
    Abstract: A novel process for the preparation of high purity penicillanic acid-1,1-dioxide comprising subjecting 6,6-dibromo-penicillanic acid-1,1-dioxide to dehalogenation with magnesium in association with an acid in high yields.
    Type: Grant
    Filed: October 10, 1984
    Date of Patent: November 19, 1985
    Assignee: Gist-Brocades N.V.
    Inventors: Jagdish C. Kapur, Herman P. Fasel
  • Processes for the preparation of tetramisole
    Patent number: 4245103
    Abstract: Processes for reacting arylvinyl oxides and alkoxyethylamines to provide novel N-substituted alkoxyethylamines; processes for reacting the novel N-substituted amines with nitriles to provide novel amidoamines; processes for preparing novel diamines from the amidoamines, together with the novel nitrogen-containing products so produced, such products being useful for the preparation of various imidazothiazoles including tetramisole.
    Type: Grant
    Filed: August 2, 1979
    Date of Patent: January 13, 1981
    Assignee: American Cyanamid Company
    Inventor: Sivaraman Raghu