Abstract

The anodic dissolution of aluminium in electrolytic media, in which acyl halides are present together with aromatic compounds, gives rise to the in situ formation of a catalytic system of the Friedel-Crafts type which promotes chemical acylation of the aromatic ring. A chemical reaction in which aluminium is dissolved was activated by the electrochemical process and was strongly influenced by the nature of the supporting electrolyte. The production of acetophenone from acetyl chloride and benzene has been studied in detail. Yields were comparable with those of the chemically catalyzed systems. 1,1-Diphenylethane, derived from a series of chemical steps initiated by the reduction of the ketone to the corresponding alcohol, was found among the products.

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