反应详情

温度

120 °C

To a mixture of methyl 2-(4-(4′-amino-[1,1′-biphenyl]-4-yl)-2-oxabicyclo[2.2.2]octan-1-yl)acetate (0.323 g, 0.918 mmol) in toluene (35 ml) was added benzyl alcohol (2.377 ml, 22.95 mmol), titanium(IV) isopropoxide (0.807 ml, 2.75 mmol) and 4 A molecular sieves (5 g, 0.918 mmol). The reaction mixture was heated at 120° C. for 48 hours. The resulting mixture was taken up in EtOAc and filtered. The filtrate was subsequently washed with water, then brine. The organic portion dried over anhydrous sodium sulfate, filtered and concentrated. The residue was purified by flash chromatography (10 to 50% EtOAc/Heptane) to give the title compound after drying (270 mg, yield 68.8% yield). LC/MS, ESI-MS(+) m/z 428.1, RT 1.59 (Condition R).

1. filtrationfiltered
2. washThe filtrate was subsequently washed with water
3. dry with materialThe organic portion dried over anhydrous sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated
6. customThe residue was purified by flash chromatography (10 to 50% EtOAc/Heptane)