反应详情

温度

50 °C

Potassium carbonate (148 mg, 1.07 mmol) and allyl bromide (0.091 ml, 1.1 mmol) were successively added to a solution of allyl (3′-fluoro-4′-{[2-formyl-3-hydroxy-4-(trifluoromethyl)benzyl]oxy}-1,1′-biphenyl-4-yl)acetate (476 mg, 0.975 mmol) obtained in Example (12-4) in N,N-dimethylformamide (5 ml), and the mixture was stirred at 50° C. for 1.5 hours. After the reaction mixture was poured into water and the mixture was extracted with ethyl acetate, the organic layer was successively washed with water and a saturated aqueous NaCl solution and dried with anhydrous sodium sulfate. The residue obtained by removing the solvent under reduced pressure was purified by silica gel column chromatography (eluting solvent: n-hexane/ethyl acetate=3/1) to give allyl (4′-{[3-(allyloxy)-2-formyl-4-(trifluoromethyl)benzyl]oxy}-3′-fluoro-1,1′-biphenyl-4-yl)acetate (122 mg, yield: 24%).

1. extractionthe mixture was extracted with ethyl acetate
2. washthe organic layer was successively washed with water
3. dry with materiala saturated aqueous NaCl solution and dried with anhydrous sodium sulfate
4. customThe residue obtained
5. customby removing the solvent under reduced pressure
6. customwas purified by silica gel column chromatography (eluting solvent: n-hexane/ethyl acetate=3/1)