582-17-2

77-78-1

5060-82-2

General method: a mixture of 2,7-dihydroxynaphthalene (500 mg, 2.64 mmol), dimethyl sulfate (0.5 ml, 5.3 mmol) and potassium carbonate (73.1 mg, 5.3 mmol) in acetonitrile (10 ml) was refluxed for 1 hour. After completion of the reaction, the solvent was removed by evaporation and the residue was poured into water and extracted with ethyl acetate. The organic layer was washed sequentially with water and brine, dried over anhydrous magnesium sulfate and subsequently concentrated under vacuum. The crude product was purified by silica gel column chromatography to afford 7-methoxy-2-naphthol using hexane/ethyl acetate (15:1) as eluent.