Patents by Inventor Craig G. Bates

Craig G. Bates 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).

  • Methods of 1,3-enyne preparation using copper (I) catalysts
    Patent number: 7473797
    Abstract: A copper(I) bi-dentate ligand complex-catalyzed procedure for synthesis of 1,3-enynes. The methods and/or systems of this invention afford a variety of enynes, tolerate a variety of sensitive functional groups, and can be employed without resort to expensive palladium reagents.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: January 6, 2009
    Assignee: University of Massachusetts
    Inventors: Dhandapani Venkataraman, Craig G. Bates, Pranorm Saejueng
  • Methods and systems for preparing fused heterocyclic compounds using copper(I) catalysts
    Patent number: 7473786
    Abstract: A copper(I)-catalyzed procedure for the synthesis of benzo[b]heterocycles. This protocol can be used to synthesize a variety of 2-arylbenzo[b]furans and indoles in good to excellent yields. This method can tolerate a variety of functional groups, does not require the use of expensive additives and is palladium-free.
    Type: Grant
    Filed: December 6, 2004
    Date of Patent: January 6, 2009
    Assignee: University of Massachusetts
    Inventors: Dhandapani Venkataraman, Craig G. Bates, Pranorm Saejueng
  • Methods for formation of aryl-sulfur and aryl-selenium compounds using copper(I) catalysts
    Patent number: 7112697
    Abstract: A mild, palladium-free synthetic protocol for the cross-coupling reaction of vinyl or aryl iodides and thiols or selenols using, in certain embodiments, 10 mol % CuI and 10 mol % neocuproine, with NaOt-Bu as the base, in toluene at 110 ° C. A variety of vinyl/aryl sulfides and vinyl/aryl selenides can be synthesized in excellent yields from readily available iodides and thiols or selenols.
    Type: Grant
    Filed: July 12, 2004
    Date of Patent: September 26, 2006
    Assignee: University of Massachusetts
    Inventors: Dhandapani Venkataraman, Craig G. Bates, Rattan K. Gujadhur