Patents by Inventor Yangsoo Ahn

Yangsoo Ahn 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).

  • Resolution of chiral compounds using aminocyclopentadienyl ruthenium catalysts
    Patent number: 7156731
    Abstract: A chiral compound, particularly a chiral secondary alcohol, can be efficiently resolved under a mild condition by acylation with an alkenyl acetate in the presence of a novel aminocyclopentadienyl ruthenium complex, an enzyme catalyst, and a base.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: January 2, 2007
    Assignee: Postech Foundation
    Inventors: Jaiwook Park, Mahn-Joo Kim, Jun Ho Choi, Yangsoo Ahn
  • Aminocyclopentadienyl ruthenium complexes and preparation thereof
    Patent number: 6998498
    Abstract: Novel aminocyclopentadienyl ruthenium complex is useful as a catalyst in the racemization of a chiral compound.
    Type: Grant
    Filed: May 17, 2002
    Date of Patent: February 14, 2006
    Assignee: Postech Foundation
    Inventors: Jaiwook Park, Mahn-Joo Kim, Jun Ho Choi, Yangsoo Ahn
  • Aminocyclopentadienyl ruthenium complexes and preparation thereof
    Publication number: 20050209473
    Abstract: Novel aminocyclopentadienyl ruthenium complex is useful as a catalyst in the racemization of a chiral compound.
    Type: Application
    Filed: May 17, 2002
    Publication date: September 22, 2005
    Inventors: Jaiwook Park, Mahn-Joo Kim, Jun Ho Choi, Yangsoo Ahn
  • Resolution of chiral compounds using aminocyclopentadienyl ruthenium catalysts
    Publication number: 20050130282
    Abstract: A chiral compound, particularly a chiral secondary alcohol, can be efficiently resolved under a mild condition by acylation with an alkenyl acetate in the presence of a novel aminocyclopentadienyl ruthenium complex, an enzyme catalyst, and a base.
    Type: Application
    Filed: May 17, 2002
    Publication date: June 16, 2005
    Inventors: Jaiwook Park, Mahn-Joo Kim, Jun Ho Choi, Yangsoo Ahn
  • Method for preparing chiral amines
    Publication number: 20040077864
    Abstract: Disclosed is a method of preparing chiral amine. The method includes reacting ketoxime, palladium, lipase, acyl-donating compound, and tertiary amine to prepare amide, and amide is hydrolyzed.
    Type: Application
    Filed: August 5, 2003
    Publication date: April 22, 2004
    Inventors: Mahn-Joo Kim, Yangsoo Ahn, Yoon Kyung Choi, Mi Jung Kim