反应详情

温度

60 °C

To 0.2 g (1.49 mmol) of 5-(hydroxymethyl)pyridine-3-carbonitrile in 2 mL of DCM is added 1 mL (4 mmol) of HCl 4N in dioxane. The mixture is concentrated under reduced pressure and then added to 0.65 mL (8.95 mmol) of thionyl chloride followed by heating for 3 hours at 60° C. After cooling to room temperature, the medium is taken up in 20 mL of toluene, and the precipitate formed is filtered off and then treated with 30 mL of DCM and 30 mL of saturated NaHCO3 solution. The organic phase is separated out and dried over Na2SO4 and then concentrated under reduced pressure. 161 mg of 5-(chloromethyl)pyridine-3-carbonitrile are obtained in the form of an oil.

1. concentrationThe mixture is concentrated under reduced pressure
2. temperatureAfter cooling to room temperature
3. customthe precipitate formed
4. filtrationis filtered off
5. additiontreated with 30 mL of DCM and 30 mL of saturated NaHCO3 solution
6. customThe organic phase is separated out
7. dry with materialdried over Na2SO4
8. concentrationconcentrated under reduced pressure