P. Cotelle et Jp. Catteau, A CONVENIENT SYNTHESIS OF SUBSTITUTED 2-PHENYLNAPHTHALENES FROM PHENYLACETONES, Tetrahedron letters, 38(17), 1997, pp. 2969-2972
Treatment of phenylacetones 1 with boron tribromide gives the 1,3-dime
thyl-2-phenylnaphtalenes 2 in good yields by a tandem aldol condensati
on-intramolecular Friedel-Crafts cyclization. In the cases of methoxyp
henylacetones, a demethylation occurs leading to 1,3-dimethyl-2-hydrox
yphenylnaphtols. (C) 1997 Published by Elsevier Science Ltd.