Patents Represented by Attorney, Agent or Law Firm Todd E. Garobedian
  • Patent number: 6235938
    Abstract: The present invention is directed to a process for the preparation of N-aryl amine compounds. The process of the present invention involves reacting a compound having an amino group with an arylating compound in the presence of a base and a transition metal catalyst under reaction conditions effective to form an N-aryl amine compound, the transition metal catalyst comprising a Group 8 metal and at least one chelating ligand selected from the group consisting of bisphosphines having at least one stearically hindered alkyl substituent. The formed products are valuable intermediates in the pharmaceutical and polymer fields.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: May 22, 2001
    Assignee: Yale University
    Inventors: John F. Hartwig, Blake C. Hamann