Patents Assigned to Sharp Associates
  • Method of preparing .beta.-dihydrothebaine
    Patent number: 4075132
    Abstract: The reaction of thebaine or dihydrothebaine-.phi. with potassium in liquid ammonia respectively in the absence or presence of catalyst yields .beta.-dihydrothebaine.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: February 21, 1978
    Assignee: Sharp Associates
    Inventor: David Edward Portlock