Patents by Inventor Jaiwook Park

Jaiwook Park 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 PREPARING ALPHA-SILYLAMINE COMPOUNDS FROM ALPHA-SILYLMETHYL AZIDE COMPOUNDS
    Publication number: 20170210765
    Abstract: The present invention relates to a process for preparing alpha-silylamine compounds and, more specifically, to a one-pot process for preparing various alpha-silylamine compounds by reacting, in the presence of a metal complex catalyst and under a mild condition, an alpha-silylmethyl azide compound as a starting material with various allylborate compounds via an alpha-silylimine intermediate which has no substituent at nitrogen.
    Type: Application
    Filed: January 10, 2015
    Publication date: July 27, 2017
    Inventors: Jaiwook PARK, Jung Joon KIM, Wook JEONG, Young Ho RHEE
  • Method for preparing optically active amines
    Patent number: 7592488
    Abstract: The present invention relates to a method of preparing optically active amines and chiral amines prepared thereby. The method includes reacting an amine compound, a metal catalyst, a biocatalyst including a lipase, and an acyl donor compound in an organic solvent to obtain a chiral amide compound, and then hydrolyzing the chiral amide compound to obtain a chiral amine.
    Type: Grant
    Filed: August 18, 2007
    Date of Patent: September 22, 2009
    Assignee: Postech Academy-Industry Foundation
    Inventors: Mahn-Joo Kim, Jaiwook Park, Won-Hee Kim, Kiwon Han, Yoon Kyung Choi
  • Synthesis of supported transition metal catalysts
    Patent number: 7579294
    Abstract: A highly active and recyclable supported transition metal catalyst can be prepared by a simple process comprising mixing with heating a transition metal complex, a metal-chelating agent and an alkoxide of Ti, Al or Si, followed by treatment with water to induce a sol-gel reaction among the reactants.
    Type: Grant
    Filed: February 2, 2005
    Date of Patent: August 25, 2009
    Assignee: Postech Foundation
    Inventors: Jaiwook Park, Namdu Kim, Min Serk Kwon, Cheon Min Park
  • SYNTHESIS OF SUPPORTED TRANSITION METAL CATALYSTS
    Publication number: 20090137385
    Abstract: A highly active and recyclable supported transition metal catalyst can be prepared by a simple process comprising mixing with heating a transition metal complex, a metal-chelating agent and an alkoxide of Ti, Al or Si, followed by treatment with water to induce a sol-gel reaction among the reactants.
    Type: Application
    Filed: February 2, 2005
    Publication date: May 28, 2009
    Applicant: POSTECH FOUNDATION
    Inventors: Jaiwook Park, Namdu Kim, Min Serk Kwon, Cheon Min Park
  • Method for Preparing Optically Active Amines
    Publication number: 20090035830
    Abstract: The present invention relates to a method of preparing optically active amines and chiral amines prepared thereby. The method includes reacting an amine compound, a metal catalyst, a biocatalyst including a lipase, and an acyl donor compound in an organic solvent to obtain a chiral amide compound, and then hydrolyzing the chiral amide compound to obtain a chiral amine.
    Type: Application
    Filed: August 18, 2007
    Publication date: February 5, 2009
    Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Mahn-Joo Kim, Jaiwook Park, Won-Hee Kim, Kiwon Han, Yoon Kyung Choi
  • Method of preparation of optically active alcohols
    Publication number: 20070015943
    Abstract: The present invention relates to a method for preparing chiral alcohol having optical activity. More specifically, the present invention relates to a method for preparing (S)-chiral alcohol with a high yield and a high optical purity by mixing achiral substrates such as racemic alcohol or ketone with metal catalyst and protein hydrolase to perform a dynamic kinetic resolution reaction.
    Type: Application
    Filed: July 25, 2003
    Publication date: January 18, 2007
    Applicants: POSTECH FOUNDATION, POSCO
    Inventors: Mahn-Joo Kim, Jaiwook Park, Yong Chung, Jun Choi, Han Lee, Yoon Choi, Daeho Kim
  • 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