Patents by Inventor Xiaohong Bei

Xiaohong Bei 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).

  • Selective oxidation of alcohols to aldehydes or ketones
    Patent number: 6350916
    Abstract: Alcohols are oxidized to their corresponding ketone or aldehyde using an aryl chloride oxidant and a metal-ligand complex or metal/ligand composition. This reaction is particularly applicable to aromatic alcohols and cyclic and bicyclic aliphatic alcohols.
    Type: Grant
    Filed: March 21, 2000
    Date of Patent: February 26, 2002
    Assignee: Symyx Technologies, Inc.
    Inventors: Anil Guram, Xiaohong Bei
  • Synthesis of carboxamides from the catalyzed reaction of aldehydes and amines
    Patent number: 6339157
    Abstract: Aldehydes are catalytically combined with amines to form carboxamides in one step using an oxidant and a metal-ligand complex or metal/ligand composition.
    Type: Grant
    Filed: July 28, 2000
    Date of Patent: January 15, 2002
    Assignee: Symyx Technologies, Inc.
    Inventors: Xiaohong Bei, Anil Guram
  • Phosphine ligands metal complexes and compositions thereof for cross-coupling reactions
    Patent number: 6268513
    Abstract: The present invention discloses new efficient processes for various bond forming reactions, including Suzuki reactions and aryl aminations. Organic compounds (e.g., ligands), their metal complexes and compositions using those compounds, provide useful catalysts. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.
    Type: Grant
    Filed: August 20, 1999
    Date of Patent: July 31, 2001
    Assignee: Symyx Technologies, Inc.
    Inventors: Anil Guram, Xiaohong Bei
  • Methods for using phosphine ligands in compositions for suzuki cross-coupling reactions
    Patent number: 6265601
    Abstract: The present invention discloses new efficient processes for various bond forming reactions, including Suzuki reactions. Organic compounds (e.g., ligands), their metal complexes and compositions using those compounds, provide useful catalysts. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.
    Type: Grant
    Filed: April 22, 1999
    Date of Patent: July 24, 2001
    Assignee: Symyx Technologies, Inc.
    Inventors: Anil Guram, Xiaohong Bei
  • Catalyst ligands, catalyst compositions, catalyst metal complexes and processes for cross-coupling aromatic boron compounds with aromatic halogens or perfluoroalkylsulfonates
    Patent number: 6124476
    Abstract: The present invention discloses new organic compounds (e.g., ligands), their metal complexes and compositions using those compounds. The invention also relates to the field of catalysis. In particular, this invention relates to new compounds which when combined with suitable metals or metal precursor compounds provide useful catalysts for various bond-forming reactions, including Suzuki cross-coupling reactions. The invention also relates to performing Suzuki cross coupling reactions with unreactive aryl-chlorides.
    Type: Grant
    Filed: February 18, 1999
    Date of Patent: September 26, 2000
    Assignee: Symyx Technologies, Inc.
    Inventors: Anil Guram, Xiaohong Bei, Timothy S. Powers, Bernd Jandeleit, Thomas Crevier