反应详情

As described in General Procedure A, 6-bromo-7-hydroxy-2,2-dimethyl-chroman-4-one, (Compound 3, 1.0 g, 3.8 mmol) in acetone (50 mL) was treated with anhydrous potassium carbonate (2.1 g, 14.9 mmol) and 2-iodopropane (0.7 mL, 7.5 mmol) to give the title compound as a white solid after purification by flash chromatography (silica gel, 10% ethyl acetate in hexanes).