Patents by Inventor Alain Chenede

Alain Chenede 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).

  • Method of preparing an ester of an aromatic carboxylic acid bearing at least one perfluoroalkyl group
    Publication number: 20060128984
    Abstract: The invention relates to a method of preparing an ester of an aromatic carboxylic acid bearing at least one perfluoroalkyl group on the aromatic ring and, more specifically, alkyl esters with low carbon condensation. The inventive method is characterised in that it consists in (i) reacting an aromatic compound bearing at least one perfluoroalkyl group and at least one nitrile group on the aromatic ring, an alkanol and a strong protonic acid at a temperature of at least 45° C. and (ii) recovering the ester thus produced.
    Type: Application
    Filed: July 23, 2003
    Publication date: June 15, 2006
    Inventors: Alain Chenede, Laurent Saint-Jalmes, Philippe-Jean Tirel
  • Process for the enantioselective synthesis of propargyl alcohol derivatives of R configuration from the racemic mixtures thereof
    Patent number: 6878842
    Abstract: The invention relates to a novel process for synthesizing organic compounds of general formula (I): said process may be carried out on an industrial scale and makes it possible to obtain from a mixture of racemic alcohols of formula (II), the corresponding chiral alcohols of R configuration, in a high chemical yield.
    Type: Grant
    Filed: April 25, 2003
    Date of Patent: April 12, 2005
    Assignee: Galderma Research & Development, S.N.C.
    Inventor: Alain Chenede
  • Process for the enantioselective synthesis of propargyl alcohol derivatives of R configuration from the racemic mixtures thereof
    Publication number: 20040049067
    Abstract: The invention relates to a novel process for synthesizing organic compounds of general formula (I): 1
    Type: Application
    Filed: April 25, 2003
    Publication date: March 11, 2004
    Inventor: Alain Chenede