Patents by Inventor Bart Stegink

Bart Stegink 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).

  • Publication number: 20100069684
    Abstract: The invention relates to the asymmetric (transfer) hydrogenation of a prochiral keton, prochiral imine, oxime, oxime derivative, hydrazone or hydrazone derivative, using a transition metal catalyst, characterized in that as a catalyst is used a transition metal complex of the general formula [I]: MaL1bL2c(N)dXe wherein a, b, c, d and e are integers; a, b and d can have a value of 1-6; c and e can have a value of 0-6; M is transition metal selected from the group consisting of Ru1 Rh and Ir; L1 is an enantiomerically enriched chiral monodentate phosphor-containing ligand of the general formula [II] or of the general formula [III]; L2 is any monodentate or bidentate neutral or monoanionic ligand, which may be chiral; N is a compound containing at least one primary or secondary amine group; X is a anion.
    Type: Application
    Filed: December 21, 2007
    Publication date: March 18, 2010
    Inventors: Johannes Gerardus De Vries, Bart Stegink