反应详情

A solution of 3,4,5,6-tetrahydro-2H-[1,3′]bipyridinyl-2′-carbonitrile (0.980 g, 5.23 mmol) in MeOH (10 mL) was added to a flask charged with Raney Ni (pre-washed with methanol) (˜1.0 g) in MeOH (10 mL). After saturated with NH3 gas the mixture was shaken under H2 (40 psi) for 3 h. The reaction mixture was then filtered through a celite cake, and the filtrate was concentrated under reduced pressure. The residue was purified by flash chromatography on a silica gel column (100:5:1 CH2Cl2/MeOH/NH4OH), affording C-(3,4,5,6-tetrahydro-2H-[1,3′]bipyridinyl-2′-yl)-methylamine as a pale yellow oil (0.627 g, 63%). 1H NMR (CDCl3) δ 1.53-1.61 (m, 2H), 1.65-1.74 (m, 4H), 2.82 (t, 4H, J=5.4 Hz), 3.99 (s, 2H), 7.11 (dd, 1H, J=4.8, 8.1 Hz), 7.31 (dd, 1H, J=1.5, 8.1 Hz), 8.27 (dd, 1H, J=1.5, 4.8 Hz).

1. filtrationThe reaction mixture was then filtered through a celite cake
2. concentrationthe filtrate was concentrated under reduced pressure
3. customThe residue was purified by flash chromatography on a silica gel column (100:5:1 CH2Cl2/MeOH/NH4OH)