Patents by Inventor Christopher A. Willoughby

Christopher A. Willoughby 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).

  • Catalytic asymmetric and non-asymmetric reduction of times and oximes using metal catalysts
    Patent number: 5292893
    Abstract: A process is provided for catalytically reducing imines, oximes, hydrazones and related compounds. Moreover, there is provided a process for the catalytic asymmetric reduction of imines, oximes, hydrazones, and the like, using enantiomerically enriched catalysts, to provide chiral amine reaction products which are enriched in one enantiomer. Catalytic asymmetric reduction can also be carried out using an achiral precatalyst in combination with aThe U.S. Government has rights in this invention pursuant to NIH Grant Number GM 34917.
    Type: Grant
    Filed: November 14, 1991
    Date of Patent: March 8, 1994
    Assignee: Massachusetts Institute of Technology
    Inventors: Stephen L. Buchwald, Christopher A. Willoughby