Patents by Inventor Rene Mutti

Rene Mutti 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 herbicidal derivatives
    Publication number: 20040198797
    Abstract: A process for the preparation of compounds of formula I 1
    Type: Application
    Filed: February 13, 2003
    Publication date: October 7, 2004
    Inventors: Thomas Maetzke, Rene Mutti, Henry Szczepanski
  • Process for the preparation of herbicidal derivatives
    Patent number: 6552187
    Abstract: A process for the preparation of compounds of formula (I), which process comprises reacting a compound of formula (II), in an inert organic solvent, optionally in the presence of a base, with a compound of formula (IV), (IVa) or (IVb), and optionally converting the resulting compound of formula (I) wherein G is a metal ion equivalent or an ammonium cation, by salt conversion into the corresponding salt of formula (I) wherein G is a sulfonium or phosphonium cation, or by treatment with a Brönsted acid into the corresponding compound of formula (I) wherein G is hydrogen, and ‘in situ’ conversion of compounds of formula (I) with an electrophile of formula (XII) or (XIId) G0—L (XII) or R32—N═C═X3 (XIId), optionally in the presence of an acid-binding agent or a catalyst, to the compounds of formula (Ia).
    Type: Grant
    Filed: November 29, 2001
    Date of Patent: April 22, 2003
    Assignee: Syngenta Crop Protection, Inc.
    Inventors: Thomas Maetzke, René Mutti, Henry Szczepanski