反应详情

To a flask equipped with a nitrogen gas inlet, addition funnel and magnetic stirrer is charged 2.7 g. (0.025 mol) of 2,6-cycloheptadienone and 90 ml. of methanol. The solution is stirred and 5.63 g. (0.025 mol) of 2-(4-fluorophenyl)-1,3-dioxolane-2-propanamine in 90 ml. of methanol is added over 30 minutes. After the addition, the reaction is allowed to stir for 20 hrs. The solution is then concentrated in vacuo to afford an oil. Chromatography on 500 g. of silica gel gives, after evaporation of solvent, 8-{3-[2-(4-fluorophenyl)1,3-dioxolan-2-yl]-propyl}-8-azabicyclo-[3.2.1]octan-3-one as an oil.

1. customTo a flask equipped with a nitrogen gas inlet, addition funnel and magnetic stirrer
2. additionis charged 2.7 g
3. additionAfter the addition
4. stirringto stir for 20 hrs
5. concentrationThe solution is then concentrated in vacuo
6. customto afford an oil
7. customof silica gel gives
8. customafter evaporation of solvent, 8-{3-[2-(4-fluorophenyl)1,3-dioxolan-2-yl]-propyl}-8-azabicyclo-[3.2.1]octan-3-one as an oil