Patents Issued in December 27, 1976
  • Patent number: 3998844
    Abstract: A process of aroylating 1-alkylpyrrole-2-acetic acid esters and nitriles without employing the usual Friedel-Crafts of catalyst.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: December 27, 1976
    Assignee: McNeil Laboratories, Incorporated
    Inventor: John Robert Carson