Patents by Inventor Ralph JACKSTELL

Ralph 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).

  • Process for the alkoxycarbonylation of ethylenically unsaturated compounds with monophosphine ligands
    Patent number: 10544174
    Abstract: The invention relates to a process comprising the following process steps: a) introducing an ethylenically unsaturated compound; b) adding a monophosphine ligand and a compound which comprises Pd, or adding a complex comprising Pd and a monophosphine ligand; c) adding an aliphatic alcohol; d) supplying CO; e) heating the reaction mixture, the ethylenically unsaturated compound being reacted to form an ester; where the monophosphine ligand is a compound of formula (I) where R1 is selected from —(C1-C12)-alkyl, —O—(C1-C12)-alkyl, —O—(C6-C20)-aryl, —(C6-C20)-aryl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C3-C20)-heteroaryl; R2 is selected from —(C6-C20)-aryl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C3-C20)-heteroaryl; R3 is —(C3-C20)-heteroaryl; and R1, R2 and R3 may each independently be substituted by one or more substituents selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —O—(C1-C12)-alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, —O—(C3-C12)-cyclo
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: January 28, 2020
    Assignee: EVONIK DEGUSSA GMBH
    Inventors: Kaiwu Dong, Ralph Jackstell, Matthias Beller, Dirk Fridag, Dieter Hess, Katrin Marie Dyballa, Frank Geilen, Robert Franke
  • PROCESS FOR THE ALKOXYCARBONYLATION OF ETHYLENICALLY UNSATURATED COMPOUNDS WITH MONOPHOSPHINE LIGANDS
    Publication number: 20180022764
    Abstract: The invention relates to a process comprising the following process steps: a) introducing an ethylenically unsaturated compound; b) adding a monophosphine ligand and a compound which comprises Pd, or adding a complex comprising Pd and a monophosphine ligand; c) adding an aliphatic alcohol; d) supplying CO; e) heating the reaction mixture, the ethylenically unsaturated compound being reacted to form an ester; where the monophosphine ligand is a compound of formula (I) where R1 is selected from —(C1-C12)-alkyl, —O—(C1-C12)-alkyl, —O—(C6-C20)-aryl, —(C6-C20)-aryl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C3-C20)-heteroaryl; R2 is selected from —(C6-C20)-aryl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —(C3-C20)-heteroaryl; R3 is —(C3-C20)-heteroaryl; and R1, R2 and R3 may each independently be substituted by one or more substituents selected from —(C1-C12)-alkyl, —(C3-C12)-cycloalkyl, —(C3-C12)-heterocycloalkyl, —O—(C1-C12)-alkyl, —O—(C1-C12)-alkyl-(C6-C20)-aryl, —O—(C3-C12)-cycloalky
    Type: Application
    Filed: July 14, 2017
    Publication date: January 25, 2018
    Applicant: EVONIK DEGUSSA GMBH
    Inventors: Kaiwu DONG, Ralph JACKSTELL, Matthias BELLER, Dirk FRIDAG, Dieter HESS, Katrin Marie DYBALLA, Frank GEILEN, Robert FRANKE