Arylacetylenes undergo smooth hydroarylation with naphthols and
phenols in the presence of 10 mol% of gallium(III) chloride
in refluxing toluene to afford the corresponding 2-vinylnaphthols
and -phenols in good yields with high regioselectivity. Similarly,
styrenes undergo hydroarylation with naphthols and phenols to provide
substituted naphthols and phenols.
arylations - arylacetylenes - gallium(III)
chloride - phenols - addition reactions