Patents by Inventor Matthias Gruenberg

Matthias Gruenberg 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).

  • Arylation method
    Patent number: 11518756
    Abstract: The present invention relates to a selective method for carrying out the Buchwald-Hartwig coupling of biphenyl derivatives.
    Type: Grant
    Filed: December 1, 2016
    Date of Patent: December 6, 2022
    Assignee: UMICORE AG & CO. KG
    Inventors: Lukas J. Goossen, Matthias Gruenberg
  • ARYLATION METHOD
    Publication number: 20200031803
    Abstract: The present invention relates to a selective method for carrying out the Buchwald-Hartwig coupling of biphenyl derivatives.
    Type: Application
    Filed: December 1, 2016
    Publication date: January 30, 2020
    Applicant: UMICORE AG & CO. KG
    Inventors: Lukas J. GOOSSEN, Matthias GRUENBERG
  • MONOARYLATION OF AROMATIC AMINES
    Publication number: 20160257650
    Abstract: The present invention relates to a selective process for performing the Hartwig-Buchwald coupling of biphenyl derivatives.
    Type: Application
    Filed: October 17, 2014
    Publication date: September 8, 2016
    Applicant: Umicore AG & Co. KG
    Inventors: Lukas GOOSSEN, Matthias GRUENBERG
  • 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