Patents Assigned to Rhodia Pperations
  • METHOD FOR PREPARING OPTIONALLY SUBSTITUTED P-HYDROXYMANDELIC COMPOUNDS AND DERIVATIVES THEREOF
    Publication number: 20110009664
    Abstract: The invention relates to a method for preparing optionally substituted P-hydroxymandelic compounds and derivatives thereof. The method for preparing the mandelic compounds of the invention comprises condensing in water, in the presence of an alkaline agent, an aromatic compound bearing at least one hydroxyl group and having a free para position, with glycoxylic acid, wherein said method is characterised in that said reaction is carried out in a piston-flow reactor.
    Type: Application
    Filed: December 9, 2008
    Publication date: January 13, 2011
    Applicant: Rhodia Pperations
    Inventors: Bruno Heinisch, Pascal Pitiot, Jean-Louis Grieneisen