反应详情

温度

0 °C

7-Iodo-1H-pyrazolo[4,3-b]pyridine (1.5 g, 6.12 mmol) was dissolved in dry DMF (51.0 mL), cooled to 0° C. and NaH (0.245 g, 60% in oil, 6.12 mmol) was added. After 15 minutes and (2-(chloromethoxy)ethyl)trimethylsilane (1.080 mL, 6.12 mmol) was added and the mixture was warmed to room temperature over 2 hours then poured into ice water (350 mL) to give a solid which was filtered off. The filtrate was combined with dichloromethane and evaporated onto silica gel. Silica gel chromatography eluted with 0-5% MeOH in DCM gave 7-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-pyrazolo[4,3-b]pyridine.

1. temperaturethe mixture was warmed to room temperature over 2 hours
2. customto give a solid which
3. filtrationwas filtered off
4. customevaporated onto silica gel
5. washSilica gel chromatography eluted with 0-5% MeOH in DCM