反应详情

温度

160 °C

2-Chloro-5-chloromethylpyridine (8.1 g, 0.05 mol) and potassium phthalimide (10.2 g, 0.055 mol) were mixed together at ambient temperature (20° C.) and the resulting mixture was then heated with stirring at 160° C. for 12 hours. The reaction mixture was then cooled to ambient temperature (20° C.) and dichloromethane was added until most of the solid residue had dissolved. The dichloromethane extract was then washed with water (2×150 ml) and brine (1×200 ml), dried using magnesium sulphate, and evaporated under reduced pressure to give a light-brown solid. The title product, N-(6-chloro-3-pyridylmethyl) phthalimide, was isolated from this solid by flash chromatography using silica gel, 230 to 400 US mesh (0.062 mm to 0.037 mm), with 10% v/v ether/ dichloromethane as eluent, as a buff solid (10.70 g, 78.5%), mp 140° to 142° C.

1. temperaturethe resulting mixture was then heated
2. additionwas added until most of the solid residue
3. dissolutionhad dissolved
4. extractionThe dichloromethane extract
5. washwas then washed with water (2×150 ml) and brine (1×200 ml)
6. customdried
7. customevaporated under reduced pressure
8. customto give a light-brown solid