Patents by Inventor Michel Troupel

Michel Troupel 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 electrosynthesis of aldehydes
    Patent number: 4988416
    Abstract: The process for the electrosynthesis of an aldehyde, according to the invention, is carried out by electrolysis, in a cell comprising only a single compartment, of an organic halide and of an N,N-disubstituted formamide such as dimethylformamide, followed by hydrolysis of the reaction mixture.The anode is made of a metal chosen from the group consisting of the reducing metals and their alloys, preferably zinc, aluminum or magnesium.The cathode, which is inert, is preferably covered with an electrolytic deposit of zinc, cadmium, lead or tin.Aldehydes are compounds which are commonly employed in many fields of the chemical industry, especially in perfumery, agricultural chemistry and pharmacy.
    Type: Grant
    Filed: November 17, 1989
    Date of Patent: January 29, 1991
    Assignee: Societe Nationale des Poudres et Explosifs
    Inventors: Michel Troupel, Soline Sibille, Jacques Perichon, Esther D'Incan, Christhophe Saboureau
  • Process for the electrochemical synthesis of carboxylic acids
    Patent number: 4824532
    Abstract: The invention relates to a process for the electrosynthesis of carboxylic acids of general formula R-COOH in which R is an organic radical by the electrochemical reduction, in the presence of carbon dioxide, of organic compounds corresponding to the general formula R--Y in which R is the above-mentioned organic radical and Y is a hetero atom-containing radical, the hetero atom of the radical Y, chosen from the group consisting of oxygen, nitrogen, sulphur andphosphorus, being directly linked to a carbon atom of the radical R by a single covalent linkage. When the hetero atom is nitrogen or phosphorus, the radical Y is an ammonium or phosphonium radical respectively.The anode, which is consumed during the electrosynthesis, is made of a metal chosen from the group consisting of reducing metals and their alloys, preferably made of magnesium, aluminium or zinc.This process without catalyst is very simple to perform and enables a cell with a single compartment to be employed.
    Type: Grant
    Filed: January 7, 1988
    Date of Patent: April 25, 1989
    Assignee: Societe Nationale Industrielle et Aerospatiale des Poudres et
    Inventors: Marie-Odile Moingeon, Jacques Chaussard, Michel Troupel, Christophe Saboureau
  • Process for preparing arylacetic and arylpropionic acids
    Patent number: 4517061
    Abstract: The process includes an electrochemical reduction, under carbon dioxide atmosphere, of benzyl type ArCH.sub.2 X or ArCH(CH.sub.3)X halogenides.According to the invention, the process consists of operating in the presence of a catalyst containing at least one organometallic complex derived from a transition metal combined with a bidentate or tetradentate coordinate.
    Type: Grant
    Filed: July 13, 1983
    Date of Patent: May 14, 1985
    Assignees: Compagnie General d'Electricite, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Jean-Francois Fauvarque, Anny Jutand, Claude Chevrot, Fernando Pfluger, Michel Troupel