Patents by Inventor Sandrine Lemaire-Audoire

Sandrine Lemaire-Audoire 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: 6156889
    Abstract: The subject matter of the present invention relates to a reagent and a process useful for cleaving a functional group protected by an alkoxycarbonyl group during an organic synthesis. This reagent comprises: a) an aqueous phase; b) a catalyst comprising at least one group VIII element in the periodic table of elements and at least one water-soluble ligand, wherein the group VIII element in the periodic table is maintained in the aqueous phase by the formation of a complex with at least one water-soluble ligand; and c) a nucleophilic compound soluble in the aqueous phase; and optionally d) an organic phase.
    Type: Grant
    Filed: October 9, 1998
    Date of Patent: December 5, 2000
    Assignee: Rhodia Chimie
    Inventors: Jean-Marie Bernard, Errol Blart, Jean-Pierre Genet, Monique Savignac, Sandrine Lemaire-Audoire
  • Patent number: 5847117
    Abstract: The subject matter of the present invention relates to a reagent and a process useful for cleaving a functional group protected by an alkoxycarbonyl group during an organic synthesis. This reagent comprises: a) an aqueous phase; b) a catalyst comprising at least one group VIII element in the periodic table of elements and at least one water-soluble ligand, wherein the group VIII element in the periodic table is maintained in the aqueous phase by the formation of a complex with at least one water-soluble ligand; and c) a nucleophilic compound soluble in the aqueous phase; and optionally d) an organic phase.
    Type: Grant
    Filed: August 18, 1993
    Date of Patent: December 8, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Marie Bernard, Errol Blart, Jean-Pierre Genet, Monique Savignac, Sandrine Lemaire-Audoire
  • Patent number: 5773617
    Abstract: The present invention relates to a reagent and to a process which are useful, when carrying out an organic synthesis, for cleaving an allylic group from a function which is protected with the latter.This reagent is defined in that it contains:a) a solvent system;b) a catalyst containing at least one element from column VIII of the Periodic Table of the Elements, the said element from column VIII of the Periodic Table being coordinated with at least one coordination agent which is soluble in the said solvent system;c) a compound which is at least partially soluble in the said solvent system and which contains at least one nucleophilic function.Application to organic synthesis.
    Type: Grant
    Filed: February 22, 1996
    Date of Patent: June 30, 1998
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Marie Bernard, Errol Blart, Jean-Pierre Genet, Sandrine Lemaire-Audoire, Monique Savignac