Method for producing 4-chlorobiphenyl and 4-chlorobiphenyl-specific specifications

   
   

The invention relates to a process for preparing 4-chlorobiphenyl by (a) reacting biphenyl and chlorine in the presence of one or more ring-chlorination catalysts, and (b) subjecting the reaction mixture obtained in step (a) to fractional distillation to obtain 4-chlorobiphenyl.

L'invenzione riguarda un procedimento per la preparazione del 4-chlorobiphenyl (a) reagendo il difenile ed il cloro in presenza di uno o piĆ¹ catalizzatori di anello-clorazione e (b) sottoponendo la miscela di reazione ottenuta al punto (a) alla distillazione frazionata per ottenere 4-chlorobiphenyl.

 
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