反应详情

A solution of 2-chloro-6-(trifluoromethyl)quinoline (1 g, 4.3 mmol) in ammonium hydroxide (50 ml) was stirred overnight at 130° C. The resulting mixture was then concentrated under vacuum to give a residue, which was purified by silica gel column chromatography using 1%˜2% methanol in dichloromethane to afford 6-(trifluoromethyl)quinolin-2-amine as an off-white solid (350 mg, 38%). (ES, m/z): [M+H]+ 212; 1H NMR (300 MHz, CDCl3): δ 7.97-7.86 (m, 2H), 7.71 (s, 2H), 6.85 (d, J=9.0 Hz, 1H), 5.26 (s, 2H).

1. concentrationThe resulting mixture was then concentrated under vacuum
2. customto give a residue, which
3. customwas purified by silica gel column chromatography