2-Propylpiperidine → 4-(2-Propyl-piperidin-1-yl)-butyronitrile

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A mixture of 2-propylpiperidine (550 mg, 4.3 mmol), 4-bromobutyronitrile (430 mg, 3.0 mmol) and potassium carbonate (550 mg, 4.0 mmol) in acetonitrile (5 mL) was stirred at rt for 12 h., followed by addition of a saturated brine (25 mL). The reaction mixture was extracted with ethyl acetate (3×25 mL) and the combined organic phases were dried (MgSO4) and evaporated to dryness to produce crude 8. The crude product was subjected to CC [eluent: CH2Cl2: MeOH (99: 1)] to give pure 8 (0.48 g, 83%); LC-MS [M+H]+ 194 (cald. 194.2).

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