Patents by Inventor Jiang-Lin Liang

Jiang-Lin Liang 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).

  • Intramolecular amidation of sulfamates catalyzed by metalloporphyrins
    Patent number: 7105660
    Abstract: An intramolecular amidation processes for substrates such as sulfamates using chiral and non-chiral metalloporphyrin complexes which can maximize catalytic activity, enhance efficiency, stereoselectivity and speed of amidation reactions is described. The chiral metalloporphyrin catalyzed amidation of sulfamates exhibits excellent cis-selectivity, affording cyclic sulfamidates with high enantiomeric excess values.
    Type: Grant
    Filed: March 3, 2004
    Date of Patent: September 12, 2006
    Assignee: University of Hong Kong
    Inventors: Chi-Ming Che, Jiang-Lin Liang
  • Intramolecular amidation of sulfamates catalyzed by metalloporphyrins
    Publication number: 20040236099
    Abstract: An intramolecular amidation processes for substrates such as sulfamates using chiral and non-chiral metalloporphyrin complexes which can maximize catalytic activity, enhance efficiency, stereoselectivity and speed of amidation reactions is described. The chiral metalloporphyrin catalyzed amidation of sulfamates exhibits excellent cis-selectivity, affording cyclic sulfamidates with high enantiomeric excess values.
    Type: Application
    Filed: March 3, 2004
    Publication date: November 25, 2004
    Inventors: Chi-Ming Che, Jiang-Lin Liang
  • Intramolecular amidation of sulfamate esters catalyzed by metalloporphyrins
    Publication number: 20040019204
    Abstract: The present invention relates to novel intramolecular amidation processes for substrates such as sulfamate esters using chiral and non-chiral metalloporphyrin complexes, which can maximize catalytic activity and enhance efficiency, stereoselectivity and speed of amidation of these substrates. The intramolecular amidation of sulfamate ester exhibits excellent cis-selectivity, affording cyclic sulfamidates with high ee values catalyzed by chiral metalloporphyrin.
    Type: Application
    Filed: July 23, 2002
    Publication date: January 29, 2004
    Inventors: Chi-Ming Che, Jiang-Lin Liang