Patents by Inventor Reiko Jennerjahn

Reiko Jennerjahn 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).

  • Phosphine ligand and palladium catalysts based thereon for the alkoxycarbonylation of ethylenically unsaturated compounds
    Patent number: 9688604
    Abstract: The invention relates to a compound of formula (1) The invention further relates to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.
    Type: Grant
    Filed: July 19, 2016
    Date of Patent: June 27, 2017
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Reiko Jennerjahn, Samet Gülak, Xiangjie Fang, Kaiwu Dong, Helfried Neumann, Ralf Jackstell, Matthias Beller, Robert Franke, Dieter Hess, Katrin Marie Dyballa, Dirk Fridag, Frank Geilen
  • PHOSPHINE LIGAND AND PALLADIUM CATALYSTS BASED THEREON FOR THE ALKOXYCARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS
    Publication number: 20170022234
    Abstract: The invention relates to a compound of formula (1) The invention further relates to Pd complexes comprising the compound according to the invention and to the use thereof in alkoxycarbonylation.
    Type: Application
    Filed: July 19, 2016
    Publication date: January 26, 2017
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Reiko JENNERJAHN, Samet GÜLAK, Xiangjie FANG, Kaiwu DONG, Helfried NEUMANN, Ralf JACKSTELL, Matthias BELLER, Robert FRANKE, Dieter HESS, Katrin Marie DYBALLA, Dirk FRIDAG, Frank GEILEN
  • Process for preparing esters from formates and olefinically unsaturated compounds
    Patent number: 9340485
    Abstract: The invention provides a process for preparing esters from formates and olefinically unsaturated compounds with catalysts based on palladium compounds. In addition, the invention discloses a polyphasic reaction mixture and nonyl methyl ester mixtures prepared by the process according to the invention.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: May 17, 2016
    Assignee: Evonik Industries AG
    Inventors: Robert Franke, Dieter Hess, Matthias Beller, Ralf Jackstell, Daniela Cozzula, Ivana Fleischer, Reiko Jennerjahn
  • Method for hydroformylation of unsaturated compounds
    Patent number: 8927776
    Abstract: The invention relates to a method for hydroformylation of unsaturated compounds such as olefins and alkynes using mixtures of synthesis gas (CO/H2), in which either the unsaturated compounds and a catalyst are heated to a reaction temperature of 60 to 200° C. and the synthesis gas is then added, or the unsaturated compounds and the catalyst are brought into contact with pure CO at normal temperature in a preformation step, then are heated to reaction temperature and on reaching the reaction temperature the CO is replaced by the synthesis gas. The pressure is 1 to 200 bar and the CO:H2 ratio in the synthesis gas is in the range from 1:1 to 50:1. The iridium catalyst used comprises a phosphorus-containing ligand in the iridium:ligand ratio in the range from 1:1 to 1:100. With high catalyst activities and low catalyst use, very high turnover frequencies are achieved.
    Type: Grant
    Filed: October 24, 2011
    Date of Patent: January 6, 2015
    Assignee: Evonik Degussa GmbH
    Inventors: Robert Franke, Matthias Beller, Ralf Jackstell, Reiko Jennerjahn, Irene Piras
  • PROCESS FOR PREPARING ESTERS FROM FORMATES AND OLEFINICALLY UNSATURATED COMPOUNDS
    Publication number: 20140309435
    Abstract: The invention provides a process for preparing esters from formates and olefinically unsaturated compounds with catalysts based on palladium compounds. In addition, the invention discloses a polyphasic reaction mixture and nonyl methyl ester mixtures prepared by the process according to the invention.
    Type: Application
    Filed: December 17, 2012
    Publication date: October 16, 2014
    Applicant: EVONIK INDUSTRIES AG
    Inventors: Robert Franke, Dieter Hess, Matthias Beller, Ralf Jackstell, Daniela Cozzula, Ivana Fleischer, Reiko Jennerjahn
  • METHOD FOR HYDROFORMYLATION OF UNSATURATED COMPOUNDS
    Publication number: 20140024860
    Abstract: The invention relates to a method for hydroformylation of unsaturated compounds such as olefins and alkynes using mixtures of synthesis gas (CO/H2), in which either the unsaturated compounds and a catalyst are heated to a reaction temperature of 60 to 200° C. and the synthesis gas is then added, or the unsaturated compounds and the catalyst are brought into contact with pure CO at normal temperature in a preformation step, then are heated to reaction temperature and on reaching the reaction temperature the CO is replaced by the synthesis gas. The pressure is 1 to 200 bar and the CO:H2 ratio in the synthesis gas is in the range from 1:1 to 50:1. The iridium catalyst used comprises a phosphorus-containing ligand in the iridium:ligand ratio in the range from 1:1 to 1:100. With high catalyst activities and low catalyst use, very high turnover frequencies are achieved.
    Type: Application
    Filed: October 24, 2011
    Publication date: January 23, 2014
    Applicant: Evonik Oxeno GmbH
    Inventors: Robert Franke, Matthias Beller, Ralf Jackstell, Reiko Jennerjahn, Irene Piras