Abstract
Abstract The Friedel–Crafts alkylation of aromatic compounds with benzyl alcohol or trioxane in the presence of AgClO4–SnCl4 was investigated. By this modified procedure various aromatic compounds including chlorobenzene were alkylated at room temperature in high yields. When trioxane was used as alkylating source, diphenylmethane was obtained in excellent yield without accompanying the formation of dibenzyl ether. Based on this finding, it was shown that C–O bond of the benzyl ether was cleaved under the very mild conditions by this couple.
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