Process for preparing monochalohydroquinones

C - Chemistry – Metallurgy – 07 – C

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260/618.1

C07C 39/24 (2006.01) C07C 37/62 (2006.01)

Patent

CA 1252482

BREVET D'INVENTION PROCEDE DE PREPARATION DE MONOHALOGENOHYDROQUINONES Société dite : RHONE-POULENC SPECIALITES CHIMIQUES Inventeur : Monsieur Serge RATTON ABREGE DU CONTENU TECHNIQUE DE L'INVENTION Procédé de chloration d'hydroquinone essentiellement en monochlorohydroquinone au moyen de chlore à l'état naissant caractérise en ce que l'on fait réagir l'hydroquinone avec une solution aqueuse d'acide chlorhydrique et de l'eau oxygénée en présence d'un solvant organique de l'hydroquinone inerte dans les conditions de la réaction. Ce procédé permet d'améliorer la sélectivité de la préparation de la monochlorohydroquinone.

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