Patents by Inventor Ralf Jackstell

Ralf Jackstell 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).

  • N-phenyl-pyrrol bisphosphane compounds and the metal complexes of the same
    Patent number: 7109346
    Abstract: N-Phenylpyrrolebisphosphines of the formula I metal complexes of these N-phenylpyrrolebisphosphines and their use in metal-catalyzed reactions.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: September 19, 2006
    Assignee: OXENO Olefinchemie GmbH & Co. KG
    Inventors: Matthias Beller, Ralf Jackstell, Holger Klein, Detlef Heller, Hans-Joachim Drexler, Klaus-Diether Wiese, Dirk Roettger
  • Method for telomerizing non-cyclic olefins
    Patent number: 7026523
    Abstract: The invention provides a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures comprising such olefins by means of nucleophiles (II) using a palladium-carbene complex as catalyst.
    Type: Grant
    Filed: May 4, 2002
    Date of Patent: April 11, 2006
    Assignee: OXENO Olefinchemie GmbH
    Inventors: Dirk Röttger, Matthias Beller, Ralf Jackstell, Holger Klein, Klaus-Diether Wiese
  • Method for the production of metal complexes
    Publication number: 20060058514
    Abstract: The invention relates to a process for preparing metal complexes containing carbene ligands by reacting metal compounds with ligand precursors II and/or III and to the use of the thus obtained metal complexes as catalysts.
    Type: Application
    Filed: October 24, 2003
    Publication date: March 16, 2006
    Inventors: Dirk Rottger, Ralf Jackstell, Matthias Beller
  • Method for the telomerisation of non-cyclic olefins
    Publication number: 20050240039
    Abstract: The invention relates to a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures in which such olefins are present with nucleophiles (II) using a metal-carbene complex as catalyst.
    Type: Application
    Filed: June 17, 2003
    Publication date: October 27, 2005
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Dirk Rottger, Ralf Jackstell, Holger Klein, Matthias Beller
  • Process for hydroformylating an olefin
    Patent number: 6956133
    Abstract: A process for hydroformylating olefins with a rhodium catalyst wherein the rhodium catalyst comprises rhodium and at least one diphosphine ligand of formula
    Type: Grant
    Filed: September 24, 2004
    Date of Patent: October 18, 2005
    Assignee: Oxeno Olefinchemie GmbH
    Inventors: Ralf Jackstell, Holger Klein, Matthias Beller, Klaus-Diether Wiese, Cornelia Borgmann
  • Method for producing diphosphines and the use thereof
    Patent number: 6924389
    Abstract: Diphosphine of formula I R1R2P—H2C—Ar—CH2PR1R2??(I) are prepared by a process that comprises a) reacting a dimethyl compound of formula II H3C—Ar—CH3??(II) with a base and an N-substituted aminophosphorous halide to form bis(aminophosphinomethyl) compound of the formula III R3R4P—H2C—Ar—CH2—PR3R4??(III) b) reacting the compound of formula III with HCl to form bis(dichlorophosphinomethyl) compound of formula IV Cl2P—H2C—Ar—CH2—PCl2??(IV) and c) reacting the compound of formula IV with an organometallic reagent to give the product compound of formula I, wherein groups R1 and R2 are each, independently of one another, a substituted or unsubstituted aromatic, heteroaromatic or aliphatic hydrocarbon group and may have a covalent bond connecting them and Ar is a substituted or unsubstituted aromatic or heteroaromatic hydrocarbon group an R3 and R4 are each, independently of one another, an N-substituted alkylamino or arylamino group.
    Type: Grant
    Filed: March 19, 2002
    Date of Patent: August 2, 2005
    Assignee: Oxeno Olefinchemie GmbH
    Inventors: Ralf Jackstell, Holger Klein, Matthias Beller, Klaus-Diether Wiese, Cornelia Borgmann
  • Method for the production of 1-octene by reductive telomerisation
    Publication number: 20050065387
    Abstract: The invention relates to a process for preparing 1-octene by telomerization of 1,3-butadiene using a reducing agent in the presence of a telomerization catalyst and partial hydrogenation of the octadiene obtained in this way.
    Type: Application
    Filed: September 18, 2002
    Publication date: March 24, 2005
    Inventors: Matthias Beller, Ralf Jackstell, Holger Klein, Dirk Rottger, Dietrich Maschmeyer, Silvia Fernandez
  • Method for telomerizing non-cyclic olefins
    Publication number: 20050038273
    Abstract: The invention provides a process for the telomerization of acyclic olefins having at least two conjugated double bonds (I) or mixtures comprising such olefins by means of nucleophiles (II) using a palladium-carbene complex as catalyst.
    Type: Application
    Filed: May 4, 2002
    Publication date: February 17, 2005
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Dirk Rottger, Matthias Beller, Ralf Jackstell, Holger Klein, Klaus-Diether Wiese
  • Process for preparing diphosphines
    Publication number: 20050038272
    Abstract: The invention relates to a process for preparing diphosphines of the formula R1R2P—H2C—Ar—CH2—PR1R2 and a process for the hydroformylation of olefins.
    Type: Application
    Filed: September 24, 2004
    Publication date: February 17, 2005
    Applicant: OXENO OLEFINCHEMIE GMBH
    Inventors: Ralf Jackstell, Holger Klein, Matthias Beller, Klaus-Diether Wiese, Cornelia Borgmann
  • Method for producing 1-olefins using palladium-carbene compounds
    Publication number: 20040242947
    Abstract: The invention relates to a process 1-olefins b telomerization of compounds having conjugated double bonds with a telogen in the presence of a noble metal telomerization catalyst, hydrogenation of the telomer and cleavage of the hydrogenated intermediate. Use of he 1-olefin as comonomer.
    Type: Application
    Filed: March 19, 2004
    Publication date: December 2, 2004
    Inventors: Matthias Beller, Ralf Jackstell, Holger Klein, Dirk Rottger, Klaus-Diether Wiese, Dietrich Maschmeyer, Axel Tuchlenski, Alfred Kaizik, Silvia Santiago Fernandez
  • Novel n-phenyl-pyrrol bisphosphane compounds and the metal complexes of the same
    Publication number: 20040116713
    Abstract: N-Phenylpyrrolebisphosphines of the formula I 1
    Type: Application
    Filed: January 20, 2004
    Publication date: June 17, 2004
    Inventors: Matthias Beller, Ralf Jackstell, Holger Klein, Detlef Heller, Hans-Joachim Drexler, Klaus-Diether Wiese, Dirk Rottger
  • Process for preparing diphosphines
    Publication number: 20040110979
    Abstract: The invention relates to a process for preparing diphosphines of the formula
    Type: Application
    Filed: September 25, 2003
    Publication date: June 10, 2004
    Inventors: Ralf Jackstell, Holger Klein, Matthias Beller, Klaus-Diether Wiese, Cornelia Borgmann