Patents by Inventor Arthur J. Catino

Arthur J. Catino 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).

  • Allylic oxidations catalyzed by dirhodium catalysts under aqueous conditions
    Patent number: 8163944
    Abstract: The present invention relates to compositions and methods for achieving the efficient allylic oxidation of organic molecules, especially olefins and steroids, under aqueous conditions. The invention concerns the use of dirhodium (II,II) “paddlewheel complexes, and in particular, dirhodium carboximate and tert-butyl hydroperoxide as catalysts for the reaction. The use of aqueous conditions is particularly advantageous in the allylic oxidation of 7-keto steroids, which could not be effectively oxidized using anhydrous methods, and in extending allylic oxidation to enamides and enol ethers.
    Type: Grant
    Filed: October 6, 2008
    Date of Patent: April 24, 2012
    Assignee: University of Maryland College Park
    Inventors: Michael P. Doyle, Arthur J. Catino, Hojae Choi, Jason M. Nichols
  • Allylic Oxidations Catalyzed by Dirhodium Catalysts under Aqueous Conditions
    Publication number: 20090093638
    Abstract: The present invention relates to compositions and methods for achieving the efficient allylic oxidation of organic molecules, especially olefins and steroids, under aqueous conditions. The invention concerns the use of dirhodium (II,II) “paddlewheel complexes, and in particular, dirhodium carboximate and tert-butyl hydroperoxide as catalysts for the reaction. The use of aqueous conditions is particularly advantageous in the allylic oxidation of 7-keto steroids, which could not be effectively oxidized using anhydrous methods, and in extending allylic oxidation to enamides and enol ethers.
    Type: Application
    Filed: October 6, 2008
    Publication date: April 9, 2009
    Applicant: UNIVERSITY OF MARYLAND, COLLEGE PARK
    Inventors: Michael P. Doyle, Arthur J. Catino, Hojae Choi, Jason M. Nichols