Patents by Inventor Satoru Masamune

Satoru Masamune 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).

  • Cu complexes of bis-oxazolines and their use
    Patent number: 5298623
    Abstract: This invention describes Cu complexes of bis-oxazolines and their use. These compounds have the following formulas: ##STR1##This project is supported in part by N. I. H. grant GM-35879.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: March 29, 1994
    Assignee: Massachusetts Institute of Technology
    Inventors: Satoru Masamune, Richard E. Lowenthal
  • Chiral borane reagents
    Patent number: 4644075
    Abstract: Chiral borane reagents and their organosilicon derivatives are disclosed.
    Type: Grant
    Filed: December 9, 1985
    Date of Patent: February 17, 1987
    Assignee: Massachusetts Institute of Technology
    Inventor: Satoru Masamune
  • Chiral boron enolate reagents
    Patent number: 4405802
    Abstract: Chiral boron enolates are provided having the formulae: ##STR1## wherein R.sub.2 B is 9-borobicyclo[3.3.1]non-9-yl(BBN) or R is n-butyl, cyclopentyl, or another alkyl group.The boron enolates can be condensed with aldehydes to produce aldol stereospecific product which includes a .beta.-hydroxy-.alpha.-methyl carbonyl unit in the product structure.
    Type: Grant
    Filed: February 22, 1982
    Date of Patent: September 20, 1983
    Assignee: Massachusetts Institute of Technology
    Inventors: Satoru Masamune, William Choy