[C-:1]#[N:2].[Na+].Cl[CH2:5][C:6]1[CH:7]=[CH:8][C:9]([O:12][CH3:13])=[N:10][CH:11]=1>CS(C)=O.[Cl-].[Na+].O>[CH3:13][O:12][C:9]1[N:10]=[CH:11][C:6]([CH2:5][C:1]#[N:2])=[CH:7][CH:8]=1Sodium cyanide (1.25 g, 25.4 mmol) was added to a solution of 5-(chloromethyl)-2-methoxypyridine (1.00 g, 6.34 mmol) in DMSO (10 ml) and stirred for 18 h at room temperature. After completion of reaction, the reaction mixture was diluted with brine and the compound was extracted with DCM (3×35 ml). The combined organic layers were dried over anhydrous sodium sulfate, filtered and evaporated. The crude compound was purified by column chromatography using 100-200 silica gel, 10% ethyl acetate in petroleum ether as eluent to afford 0.6 g (63.8%) of 2-(6-methoxypyridin-3-yl)acetonitrile as white color solid.
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