Patents by Inventor Paraskevi Olympia Lagaditis

Paraskevi Olympia Lagaditis 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).

  • Iron(II) catalysts containing tridentate PNP ligands, their synthesis, and use thereof
    Patent number: 10385084
    Abstract: The application describes catalytic materials for hydrogenation or asymmetric hydrogenation. In particular, the application describes iron(II) complexes containing tridentate diphosphine PNP ligands useful for catalytic hydrogenation.
    Type: Grant
    Filed: January 8, 2015
    Date of Patent: August 20, 2019
    Assignee: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO
    Inventors: Robert H. Morris, Paraskevi Olympia Lagaditis, Jessica Sonnenberg
  • Iron catalysts with unsymmetrical PNN'P ligands
    Patent number: 9597673
    Abstract: The present invention relates to catalytic materials for hydrogenation or asymmetric hydrogenation. In particular, the invention relates to iron (II) complexes containing unsymmetrical tetradentate diphosphine (PNN?P) ligands with two different nitrogen donor groups useful for catalytic transfer hydrogenation or asymmetric transfer hydrogenation of ketones, aldehydes and imines.
    Type: Grant
    Filed: May 27, 2013
    Date of Patent: March 21, 2017
    Assignee: The Governing Council of the University of Toronto
    Inventors: Alexandre Mikhailine, Robert H. Morris, Paraskevi Olympia Lagaditis, Weiwei Zuo
  • IRON(II) CATALYSTS CONTAINING TRIDENTATE PNP LIGANDS, THEIR SYNTHESIS, AND USE THEREOF
    Publication number: 20160326202
    Abstract: The application describes catalytic materials for hydrogenation or asymmetric hydrogenation. In particular, the application describes iron(ll) complexes containing tridentate diphosphine PNP ligands useful for catalytic hydrogenation.
    Type: Application
    Filed: January 8, 2015
    Publication date: November 10, 2016
    Applicant: The Governing Council of the University of Toronto
    Inventors: Robert H. MORRIS, Paraskevi Olympia LAGADITIS, Jessica SONNENBERG
  • IRON CATALYSTS WITH UNSYMMETRICAL PNN'P LIGANDS
    Publication number: 20150151289
    Abstract: The present invention relates to catalytic materials for hydrogenation or asymmetric hydrogenation. In particular, the invention relates to iron (II) complexes containing unsymmetrical tetradentate diphosphine (PNN?P) ligands with two different nitro gen donor groups useful for catalytic transfer hydrogenation or asymmetric transfer hydrogenation of ketones, aldehydes and imines.
    Type: Application
    Filed: May 27, 2013
    Publication date: June 4, 2015
    Inventors: Alexandre Mikhailine, Robert H. Morris, Paraskevi Olympia Lagaditis, Weiwei Zuo
  • Iron(II) catalysts containing diimino-diphosphine tetradentate ligands and their synthesis
    Patent number: 8716507
    Abstract: New hexa-coordinate iron (II) complexes comprising compounds of formula (I) are described. These compounds comprise a tetradentate ligand with donor atoms comprising nitrogen and phosphorus. These complexes are shown for the first time to be useful catalysts for the hydrogenation of ketones, aldehydes, or imines to produce alcohols or amines, and the asymmetric hydrogenation of prochiral ketones or imines to produce non-racemic alcohols or amines. The source of the hydrogen can be hydrogen gas or a hydrogen-donating molecule such as isopropanol or hydrogen-donating mixture such as formic acid and an amine depending on the structure of the catalyst. In certain embodiments, the axial ligands on the catalyst comprise organonitrile ligands, carbonyl ligands, isonitrile ligands, or combinations thereof. The catalysts and the preparation thereof are disclosed. A reaction using phosphine and diamine precursors that is templated by the iron ion is the preferred route to the catalysts.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: May 6, 2014
    Assignee: The Governing Council of University of Toronto
    Inventors: Alexandre Mikhailine, Friederike Freutel, Christine Sui-Seng, Nils Meyer, Robert H. Morris, Paraskevi Olympia Lagaditis