反应详情

2-chloro-3-nitrobenzonitrile (74 g, 0.408 mol) is mixed with ethanol (370 ml) and ethanolamine (57 ml). The mixture is stirred for 16 hrs at room temperature. To complete the reaction, the mixture is refluxed for 2 hours. After cooling, the mixture is concentrated under vacuum; the product precipitates as a red solid. To eliminate the ethanolamine hydrochloride salt, the suspension is triturated with 500 ml of water and filtrated under vacuum. The solid is washed with ethanol and ether then dried to give the desired product (75 g, 89%).

1. customthe reaction
2. temperaturethe mixture is refluxed for 2 hours
3. temperatureAfter cooling
4. concentrationthe mixture is concentrated under vacuum
5. customthe product precipitates as a red solid
6. customthe suspension is triturated with 500 ml of water
7. filtrationfiltrated under vacuum
8. washThe solid is washed with ethanol and ether
9. customthen dried