Patents by Inventor Christiane Charlotte Kofink

Christiane Charlotte Kofink 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).

  • Nickel or Iron Catalysed Carbon-Carbon Coupling Reaction of Arylenes, Alkenes and Alkines
    Publication number: 20100184977
    Abstract: Organozinc compounds of the type R1—Ar1—ZnY (1) can be reacted with different functionalized aryl halides R2—Ar2—X (2) in the presence of catalytic amounts of Ni or Fe in a polar solvent or solvent mixture to form polyfunctional biaryles of the type R1—Ar1—Ar2—R2 (3). Organozinc compounds of the type (1) can be represented by the transmetallation reaction of functionalized aryl magnesium halides or lithium aryl compounds with e.g. ZnBr2.
    Type: Application
    Filed: September 12, 2006
    Publication date: July 22, 2010
    Inventors: Paul knochel, Andrei Gavriushin, Christiane Charlotte Kofink, Georg Manolikakes
  • Iron or Cobalt-Catalyzed Carbon-Carbon Coupling Reaction of Aryls, Alkenes and Alkines With Copper Reagents
    Publication number: 20080269514
    Abstract: The present invention relates to a process for the formation of carbon-carbon bonds starting from a copper compound of an aryl, heteroaryl, alkene or alkine and an aryl, heteroaryl, alkene or alkine compound having a suitable leaving group. The copper compounds can be prepared inter alia by means of transmetalliziation from a Grignard or lithium compound. Cross-coupling of these compounds with e.g. a halogen-substituted aryl compound is carried out by means of an iron or cobalt catalyst using suitable solvents and suitable additives.
    Type: Application
    Filed: October 11, 2005
    Publication date: October 30, 2008
    Applicant: SALTIGO GMBH
    Inventors: Paul Knochel, Ioannis Sapountzis, Tobias Korn, Wenwei Lin, Christiane Charlotte Kofink