反应详情

温度

0 °C

To a mixture of tetrazole (500 mg, 7.13 mmol) in 14 mL DMF at 0° C. was added NaH (60%, 286 mg, 7.13 mmol). The mixture was stirred at 0° C. for 20 min, then was treated with BOM-Cl (80%, 1.35 mL, 7.84 mmol). The mixture was stirred at rt for 2 h, then was diluted with EtOAc. The organic phase was washed with H2O (3×) and brine, dried (Na2SO4), filtered through 1″ SiO2 and concentrated. The crude product was purified by flash chromatography (0 to 50% EtOAc/hexanes gradient) to afford 483 mg of Intermediate 12.1 as a colorless oil.

1. stirringThe mixture was stirred at rt for 2 h
2. washThe organic phase was washed with H2O (3×) and brine
3. dry with materialdried (Na2SO4)
4. filtrationfiltered through 1″ SiO2
5. concentrationconcentrated
6. customThe crude product was purified by flash chromatography (0 to 50% EtOAc/hexanes gradient)