Patents by Inventor Patrizia Mamone

Patrizia Mamone 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 the preparation of palladium(I) tri-tert-butylphosphine bromide dimer and process for its use in isomerization reactions
    Patent number: 9192927
    Abstract: The invention provides a new method for the preparation of the dimeric Pd(l) tri-tert.-butylphosphine bromide complex, characterized by the chemical formula [Pd(?-Br)(PtBu3)]2. The method is based on a comproportionation reaction in which a Pd(ll) compound (?PdBr2) is reacted with a Pd(0) compound (?Pd(PtBu3)2) in organic solvents to yield the [Pd(?-Br)(PtBu3)]2 compound having the Pd atoms in the formal oxidation state +1. Unreacted PdBr2 may be reused in the process. The method is straightforward and applicable for industrial scale production and provides high product yields. Further, a new process for the isomerization of allyl ethers of the general type R1—C(O)—O—CH(R2)—C(R3)?CH2 employing the compound Pd?-Br)(PtBu3)]2 as a catalyst is disclosed.
    Type: Grant
    Filed: June 25, 2012
    Date of Patent: November 24, 2015
    Assignee: UMICORE AG & CO. KG
    Inventors: Lukas Goossen, Matthias Arndt, Patrizia Mamone, Matthias Gruenberg
  • Method for the Preparation of Palladium(I) Tri-Tert-Butylphosphine Bromide Dimer and Process for its Use in Isomerization Reactions
    Publication number: 20140187803
    Abstract: The invention provides a new method for the preparation of the dimeric Pd(l) tri-tert.-butylphosphine bromide complex, characterized by the chemical formula [Pd(?-Br)(PtBu3)]2. The method is based on a comproportionation reaction in which a Pd(ll) compound (=PdBr2) is reacted with a Pd(0) compound (=Pd(PtBu3)2) in organic solvents to yield the [Pd(?-Br)(PtBu3)]2 compound having the Pd atoms in the formal oxidation state +1. Unreacted PdBr2 may be reused in the process. The method is straightforward and applicable for industrial scale production and provides high product yields. Further, a new process for the isomerization of allyl ethers of the general type R1—C(O)—O—CH(R2)—C(R3)?CH2 employing the compound Pd?-Br)(PtBu3)]2 as a catalyst is disclosed.
    Type: Application
    Filed: June 25, 2012
    Publication date: July 3, 2014
    Applicant: Umicore AG & Co. KG
    Inventors: Lukas Goossen, Matthias Arndt, Patrizia Mamone, Matthias Gruenberg