Ammonia → (5-Methyl-3-(trifluoromethyl)pyridin-2-yl)methanamine

Reaktionsgleichung

Cl[C:2]1[N:7]=[C:6]([C:8]#[N:9])[C:5]([C:10]([F:13])([F:12])[F:11])=[CH:4][C:3]=1[CH3:14].N>CO.[Ni]>[CH3:14][C:3]1[CH:4]=[C:5]([C:10]([F:13])([F:11])[F:12])[C:6]([CH2:8][NH2:9])=[N:7][CH:2]=1

Komponenten

Versuchsvorschrift

A solution of 6-chloro-5-methyl-3-trifluoromethyl-pyridine-2-carbonitrile (0.300 g, 1.36 mmol) in MeOH (5 mL) was added to a flask charged with Raney Ni (pre-washed with methanol) (0.6 g) in MeOH (5 mL). After saturated with NH3 gas the mixture was shaken under H2 (40 psi) for 2 h. The reaction mixture was then filtered through a celite cake, and the filtrate was concentrated by evaporation under vacuum. The residue was purified by flash chromatography on a silica gel column (200:10:1 CH2Cl2/MeOH/NH4OH), affording C-(5-methyl-3-trifluoromethyl-pyridin-2-yl)-methylamine as a colorless oil (0.113 g, 44%). 1H NMR (CDCl3) δ 2.39 (s, 3H), 4.07 (s, 2H), 7.71 (s, 1H), 8.56 (s, 1H).