[NH:1]1[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.Cl[C:8]1[CH:13]=[CH:12][N:11]=[C:10]([CH3:14])[CH:9]=1>O>[N:1]1([C:8]2[CH:13]=[CH:12][N:11]=[C:10]([CH3:14])[CH:9]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1Piperidine (31.7 ml) and 4 -chloro-2 -picoline (13.65 g) were heated together in a bomb at 170 ° for 4.5 hours. After cooling, the mixture was taken up in water and extracted with ether. After drying (K2CO3) and stripping, the residue was distilled to give 4 -piperidino-2 -picoline, 15.45 g, b.p. 105°-10 ° (0.1 mm).
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