反应详情

温度

-78 °C

Under a nitrogen atmosphere, add 152 mg. 2-picoline and 1.5 ml. tetrahydrofuran (THF) and cool to -28° C. Add 104 mg. n-butyl lithium and stir about 30 minutes at -78° C. Add 20 mg. of the iodide prepared in Examples 2 and 3 in 1 ml. THF. Stir 1 hour at -78° C., let warm to room temperature and stir about 15 hours. Work up with water and methylene chloride then wash with water and brine then.dry over sodium sulfate. Elute on a coarse silica column with methylene chloride then 50% ethylacetate/methylene chloride to obtain the title compound. Prepare the hydrochloride salt by reaction of the title compound with 0.1N HCl.

1. additionUnder a nitrogen atmosphere, add 152 mg
2. additionAdd 104 mg
3. additionAdd 20 mg
4. temperaturelet warm to room temperature
5. stirringstir about 15 hours
6. washWork up with water and methylene chloride then wash with water and brine then.dry over sodium sulfate
7. washElute on a coarse silica column with methylene chloride