反应详情

With cooling with ice, bromoacetyl bromide (680 μL) was added to a chloroform (10 ml) solution of 1-tert-butyloxycarbonylpiperazine (1 g) and triethylamine (2.2 mL). At that temperature, this was stirred for 0.5 hours, and then at room temperature for further 0.5 hours. The reaction liquid was diluted with ethyl acetate, washed with water and saturated saline water, and dried with anhydrous sodium sulfate. The solvent was evaporated away under reduced pressure, and the resulting residue was purified through silica gel column chromatography (hexane/ethyl acetate=7/3) to obtain 340 mg of the entitled compound.

1. waitat room temperature for further 0.5 hours
2. customThe reaction liquid
3. washwashed with water and saturated saline water
4. dry with materialdried with anhydrous sodium sulfate
5. customThe solvent was evaporated away under reduced pressure
6. customthe resulting residue was purified through silica gel column chromatography (hexane/ethyl acetate=7/3)