反应详情

温度

0 °C

1-(tert-Butyl-dimethyl-silanyl)-4-chloro-1H-indol-5-ol (5.35 g, 18.98 mmol) is dissolved in THF (90 mL) and cooled to 0° C. TBAF (4.96 g, 18.98 mmol) is added over 5 minutes to the brown solution. After 1 hour the reaction is quenched with ammonium chloride. The reaction is diluted with ethyl acetate and washed with water and then brine. The organic phase is removed, dried (sodium sulfate) and concentrated. The mixture is absorbed onto silica and purified via FCC (0-40% ethyl acetate:heptanes) to obtain the title compound as a solid. MS (ESI) m/z 168.15 (M+1).

1. customAfter 1 hour the reaction is quenched with ammonium chloride
2. additionThe reaction is diluted with ethyl acetate
3. washwashed with water
4. customThe organic phase is removed
5. dry with materialdried (sodium sulfate)
6. concentrationconcentrated
7. customThe mixture is absorbed onto silica
8. custompurified via FCC (0-40% ethyl acetate:heptanes)