反应详情

A solution of 6.0 g 1-dimethylamino-piperidin-4-one (prepared as described in Journal of Medicinal & Pharmaceutical Chemistry, 4, 423-36; 1961) in 30 ml of dichloromethane is added to a mixture of 4.1 g potassium cyanide and 10.6 g sodium hydrogencarbonate in 30 ml of water. The resulting mixture is stirred at room temperature for 3 hours, then extracted with ethyl acetate, the organic layer dried over sodium sulfate, and the solvent evaporated. 4.8 g 1-Dimethylamino-4-hydroxy-piperidine-4-carbonitrile is obtained. 1H-NMR (CDCl3): 3.95 ppm (s, broad, 1H), 2.90 ppm (m, 2H), 2.68 ppm (m, 2H), 2.40 ppm (s, 6H), 2.15 ppm (m, 2H), 1.95 ppm (m, 2H).

1. extractionextracted with ethyl acetate
2. dry with materialthe organic layer dried over sodium sulfate
3. customthe solvent evaporated