反应详情

To a suspension of 2-[4-(2-hydroxy-ethoxy)-3,5-dimethyl-phenyl]-6-methoxy-3H-quinazolin-4-one (1.50 g, 4.41 mmol) in N,N-dimethylformamide (15 mL), carbon tetrabromide (1.60 g, 4.85 mmol), and triphenylphosphine (1.30 g, 4.85 mmol) were added and the reaction mixture was stirred at room temperature for 16 hours. The solvent was evaporated in vacuo and the product was purified by the Simpliflash system, using 1-2% methanol in CH2Cl2 as eluent, to give 2-[4-(2-bromo-ethoxy)-3,5-dimethyl-phenyl]-6-methoxy-3H-quinazolin-4-one as a white solid. Yield: 1.77 g (quantitative).

1. additionwere added
2. customThe solvent was evaporated in vacuo
3. customthe product was purified by the Simpliflash system