AROMATIC HALOETHYLATION WITH PALLADIUM AND COPPER HALIDES

Aryl derivatives of group VIII metal compounds, prepared from group VIII metal salts and mercury, tin, or lead aryls, react with olefins in the presence of cupric halides to form 2-arylethyl halides. Chlorides are formed in higher yields than bromides. The most generally useful and readily obtainable reactants were arylmercuric halides, with lithium palladium chloride as the group VIII metal compound. Since only catalytic amounts of the palladium salt are required, this reaction provides a convenient method for introducing 2-haloethyl groups into aromatic systems. © 1968, American Chemical Society. All rights reserved.