Abstract
Abstract The reaction of p-bromostyrene with benzene in the presence of palladium(II) acetate gave unexpected bibenzyl (2) and trans-stilbene (3) in 12% and 5% yields respectively, in addition to the usual substitution product (1, 47%). This result shows that dehalogenation and subsequent hydrogenation accompany the aromatic substitution of olefins when both iodides and bromides are used.
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