Patents by Inventor Frauke Platz

Frauke Platz 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).

  • Process for the Kumada coupling reaction
    Patent number: 7205414
    Abstract: A method for the formation of 3-alkylthiophenes or 3-arylthiophenes from 3-halothiophenes. More particularly, improvements on the Kumada coupling reaction for the production of 3-alkylthiophenes or 3-arylthiophenes by reacting a 3-halothiophene with an alkylmagnesiumhalide or arylmagnesiumhalide Grignard reagent in the presence of a catalyst and a 2-methyl tetrahydrofuran solvent. The 2-methyl tetrahydrofuran solvent allows for higher concentrations of the Grignard reagent with minimal or no dithienyl side product generation, achieving higher product yields and at a lower cost than other known methods.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: April 17, 2007
    Assignee: Honeywell International Inc.
    Inventors: Christian Werner, Frauke Platz, Andreas Kanschik-Conradsen
  • Process for the kumada coupling reaction
    Publication number: 20060155134
    Abstract: A method for the formation of 3-alkylthiophenes or 3-arylthiophenes from 3-halothiophenes. More particularly, improvements on the Kumada coupling reaction for the production of 3-alkylthiophenes or 3-arylthiophenes by reacting a 3-halothiophene with an alkylmagnesiumhalide or arylmagnesiumhalide Grignard reagent in the presence of a catalyst and a 2-methyl tetrahydrofuran solvent. The 2-methyl tetrahydrofuran solvent allows for higher concentrations of the Grignard reagent with minimal or no dithienyl side product generation, achieving higher product yields and at a lower cost than other known methods.
    Type: Application
    Filed: January 12, 2005
    Publication date: July 13, 2006
    Inventors: Christian Werner, Frauke Platz, Andreas Kanschik-Conradsen