Patents by Inventor Teruo Iizuka

Teruo Iizuka 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).

  • Method for reducing an .alpha. .beta.-unsaturated ketone
    Patent number: 5459264
    Abstract: A method for reducing an .alpha.,.beta.-unsaturated ketone of the present invention includes the step of treating the .alpha.,.beta.-unsaturated ketone with a silyl compound in the presence of a Lewis acid and alcohol to selectively reduce the carbonyl group of the .alpha.,.beta.-unsaturated ketone. According to this method, a deoxy-compound can be obtained from the .alpha.,.beta.-unsaturated ketone by selectively reducing the carbonyl group without reducing an .alpha.,.beta.-unsaturated bond.
    Type: Grant
    Filed: December 17, 1993
    Date of Patent: October 17, 1995
    Assignee: Shionogi Seiyaku Kabushiki Kaisha
    Inventors: Mitsuru Imuta, Makoto Kobayashi, Teruo Iizuka