Patents by Inventor Jaques TONNEL

Jaques TONNEL 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 FOR THE PREPARATION OF 3-SUBSTITUTED (INDOL-1-YL)-ACETIC ACID ESTERS
    Publication number: 20170305879
    Abstract: The invention relates to an industrial scale process for the preparation of a compound of general formula (I): (Formula (I)) wherein R1, R2 and R3 are as defined herein. The process comprises reacting compounds of general formulae (II) and (III): (formulae (II), (III)) in the presence of a Lewis acid followed by a reduction with triethylsilane.
    Type: Application
    Filed: December 12, 2014
    Publication date: October 26, 2017
    Inventors: Jaques TONNEL, Sylvie BLANCHET, Guillaume Léonard Pierre DEWAELE