Abstract
Alumina-supported copper (II) chloride efficiently catalyzed Friedel-Crafts benzylation of aromatic hydrocabons and phenols with benzyl chloride under mild conditions. The recovered catalyst can be readily regenerated and reused without a decrease in catalytic activity. The reaction of benzene with bis (chloromethyl) benzenes gave dibenzylbenzenes in high yields, and the formation of by-products such as polybenzylbenzenes was depressed in contrast to that in the reaction catalyzed by AlCl3, AlCl3CH.NO2 or FeCl3.
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