Patents by Inventor Mukund Prahalada Rao Sibi

Mukund Prahalada Rao Sibi 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).

  • Pyrazole intermediates in a method of preparation of &bgr;-amino acids
    Patent number: 6191283
    Abstract: Pyrazole intermediates in a method for the preparation of &bgr;-amino acid compounds are provided. The method includes contacting an amine nucleophile with an &agr;,&bgr;-unsaturated amide compound in the presence of a chiral Lewis acid complex. The chiral Lewis acid complex is formed from an azophilic metal salt and a chiral bisoxazolinylmethane compound. The selective amidolysis of one enantiomer of the &bgr;-aminoamide product is also described.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: February 20, 2001
    Assignee: NDSU-Research Foundation
    Inventors: Mukund Prahalada Rao Sibi, John Joseph Shay, Craig Peter Jasperse, Mei Liu
  • Method of preparation of .beta.-amino acids
    Patent number: 6080857
    Abstract: A method for the preparation of .beta.-amino acid compounds is provided. The method includes contacting an amine nucleophile with an .alpha.,.beta.-unsaturated amide compound in the presence of a chiral Lewis acid complex. The chiral Lewis acid complex is formed from an azophilic metal salt and a chiral bisoxazolinylmethane compound. The selective amidolysis of one enantiomer of the .beta.-aminoamide product is also described.
    Type: Grant
    Filed: February 13, 1998
    Date of Patent: June 27, 2000
    Assignee: North Dakota State University
    Inventors: Mukund Prahalada Rao Sibi, John Joseph Shay, Craig Peter Jasperse, Mei Liu