Patents Assigned to Rohm Gesellschaft, GmbH
  • Procedure for the manufacture of 3-amino-2-oxo-pyrrolidines, new intermediates and their use
    Patent number: 6156908
    Abstract: The invention is directed to a process for the preparation of lactams of Formula I. It is further directed to new advantageous intermediates of Formula II and the use thereof. By the cyclization of compounds of Formula II, compounds of Formula I are obtained.
    Type: Grant
    Filed: September 10, 1999
    Date of Patent: December 5, 2000
    Assignee: Rohm Gesellschaft, GmbH
    Inventors: Karlheinz Drauz, Ingo Klement, Gunter Knaup