反应详情

16.20 g (100 mmol) of 2-chloro-5-(chloromethyl)pyridine, 16.90 g (130 mmol) of 3-chloropropan-1-amine hydrochloride and 36.24 ml (260 mmol) of triethylamine in 200 ml acetonitrile stirred at 60° C. for 20 hours. After addition of 30.67 g (230 mmol) of 30 percent strength aqueous sodium hydroxide solution, the reaction mixture is concentrated under reduced pressure and the residue is extracted with chloroform. Concentration of the extract under reduced pressure gives 19.03 g (87% of theory) of 3-chloro-N-[(6-chloropyridin-3-yl)methyl]propan-1-amine which can be used without further purification for the next reaction (cf. Ex. II-2).

1. concentrationthe reaction mixture is concentrated under reduced pressure
2. extractionthe residue is extracted with chloroform
3. extractionConcentration of the extract under reduced pressure