Patents Assigned to Rhone-Poulenc Specialistes Chimiques
  • Process for the halogenation, nitration and fluorination of aromatic derivatives
    Patent number: 4876376
    Abstract: A process for the halogenation (bromination or chlorination)/nitration/fluorination of aromatic derivatives substituted by at least one group containing a halogenoalkyl unit. The aromatic derivative is reacted with a halogen and a nitrating agent in liquid hydrofluoric acid. The products obtained are useful as intermediates for the synthesis of compounds having a plant-protecting or pharmaceutical activity.
    Type: Grant
    Filed: December 15, 1987
    Date of Patent: October 24, 1989
    Assignee: Rhone-Poulenc Specialistes Chimiques
    Inventors: Michael Desbois, Camille Disdier