Palladium-Catalyzed C-Allylation of Naphthols by Direct Use of Allylic Alcohols under Neutral Conditions.
C-Allylation of 1- or 2-naphthols to give mono-, di-, and triallylnaphthols selectively using allylic alcohols directly under neutral conditions has been realized by employing palladium catalysts in the presence of molecular sieve 4A. This method is also applicable for the multiple allylation of 2,6-dihydroxynaphthalene.