反应详情

Following General Procedure H, a solution of 6-bromo-4-tert-butyl-7-methoxy-2,2-dimethyl-2H-chromene (Compound 15, 280 mg, 0.86 mmol) in THF was treated with tributyl(1-ethoxyvinyl)tin (0.58 mL, 1.7 mmol) to give the title compound as a colorless oil.