Patents by Inventor Mireille Labrouillere

Mireille Labrouillere 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).

  • Aromatic compound acylation method
    Patent number: 6184418
    Abstract: A method for acylating an aromatic compound, specifically an activated or deactivated aromatic compound, is disclosed. The method is suitable for preparing aromatic ketones. The preparation of a catalyst and novel bismuth compounds is also disclosed. Said aromatic compound acylation method comprises reacting said aromatic compound with an acylating agent in the presence of a catalyst, and is characterised in that the acylation reaction is performed in the presence of an effective amount of at least one bismuth salt of trifluoromethanesulphonic acid.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: February 6, 2001
    Assignee: Rhodia Chimie
    Inventors: Jacques Dubac, Hafida Gaspard, Mireille Labrouillere, André Laporterie, Jean-Roger Desmurs, Christophe Le Roux
  • Acylation of aromatic ethers/phenols
    Patent number: 5637773
    Abstract: Aromatic ethers/phenols are acylated, characteristically into hydroxy- and/or alkoxyaromatic alkylketones, and in particular, are acylated in the para-position relative to an alkoxy substituent borne by the aromatic nucleus, by reacting/condensing same with an acylation agent, for example acetyl chloride or acetic anhydride, in the presence of a catalytically effective amount of a bismuth halide, or a precursor compound that generates, in situ, a bismuth halide.
    Type: Grant
    Filed: August 24, 1995
    Date of Patent: June 10, 1997
    Assignee: Rhone-Poulenc Chimie
    Inventors: Jean-Roger Desmurs, Jacques Dubac, Mireille Labrouillere, Andre Laporterie