Patents by Inventor Derek Tegg

Derek Tegg 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).

  • Process for 5-aroylation of 1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic esters
    Patent number: 4353829
    Abstract: An improved process for 5-aroylation of 1,2-dihydro-3H-pyrrolo[1,2-a]pyrrole-1-carboxylic esters and nitriles and for subsequent hydrolysis thereof is disclosed. In the improved process, an aroyl morpholide is reacted with the pyrrolo pyrrole system and the resultant decomposed with base.
    Type: Grant
    Filed: November 21, 1980
    Date of Patent: October 12, 1982
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: T. C. Thurber, Derek Tegg