Patents by Inventor Romano Dorta

Romano Dorta 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).

  • Binuclear iridium(I) phosphine complexes and their use as catalyst in the asymmetric hydroamination of olefins
    Patent number: 5929265
    Abstract: Binuclear iridium (I) phosphine complexes of the general formula: ##STR1## in which X is fluorine, chlorine, bromine or iodine, and ##STR2## is in each case a chiral bidentate diphosphine ligand. The complexes are particularly suitable as catalysts for the inter- or intramolecular asymmetric hydroamination of prochiral olefins.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: July 27, 1999
    Assignee: Lonza AG
    Inventors: Romano Dorta, Patrick Egli, Nikolaus H Bieler, Antonio Togni, Martin Eyer