Patents by Inventor Michael Grabarnick

Michael Grabarnick 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).

  • Process to bromomethylate aromatic compounds
    Publication number: 20040242799
    Abstract: The present invention provides a process for bromomethylation of organic compounds, wherein said process is a two stage process comprising of the following stages: a) reacting paraformaldehyde with hydrogen bromide and separating bis-bromomethyl ether (BBME) from the reaction mixture, and, b) reacting BBME obtained in stage (a) with an organic compound in the presence of a Lewis acid, to obtain the bromomethylated organic compound. Further provided by the present invention is a process for the preparation of 4,4′-bis-(diethylphosphonomethyl)-biphenyl (BPMB).
    Type: Application
    Filed: July 27, 2004
    Publication date: December 2, 2004
    Inventors: Michael Grabarnick, Yoel Sasson