Patents by Inventor Nandakumar Mecheril Valsan

Nandakumar Mecheril Valsan 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).

  • Patent number: 7276627
    Abstract: A method for producing sequenced reaction products comprising performing, in one pot, a first reaction at a lower temperature followed by a second reaction at a higher temperature in the presence of a catalyst system comprising a proazaphosphatrane in combination with a palladium compound is provided. In one embodiment, the first reaction is a double amination reaction and the second reaction is an arylation. Use of one pot and a single catalyst system for each set of sequential reactions is efficient and economical. Novel N,N-diarylaminostyrenes and N,N-diarylaminostilbenes are produced according to the methods described herein.
    Type: Grant
    Filed: April 5, 2005
    Date of Patent: October 2, 2007
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Nandakumar Mecheril Valsan, John G. Verkade