反应详情

Into a 3,000 ml 3-necked roundbottom flask, was placed a solution of 1-benzyl-2-(chloromethyl)pyrrolidine (150. g, 714 mmol) in N,N-dimethylformamide (1,500 ml). This was followed by the addition of a solution of NaCN (54.2 g, 834 mmol) in water (300 ml). The resulting solution was heated to reflux for 2 hours. After cooling to ambient temperature, the solution was dissolved in 6,000 ml of water. The resulting solution was extracted with ethyl acetate (3×3,000 ml) and the combined organic layers were dried over sodium sulfate, filtered and concentrated. The residue was purified by flash column chromatography (ethylacetate/petroleum ether gradient) to afford 2-(1-benzylpyrrolidin-2-yl)acetonitrile.

1. customInto a 3,000 ml 3-necked roundbottom flask, was placed
2. temperatureThe resulting solution was heated
3. temperatureto reflux for 2 hours
4. extractionThe resulting solution was extracted with ethyl acetate (3×3,000 ml)
5. dry with materialthe combined organic layers were dried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated
8. customThe residue was purified by flash column chromatography (ethylacetate/petroleum ether gradient)