反应详情

温度

130 °C

3-Chloro-2-nitro-aniline (1.12 g, 6.5 mmol), 2-mercaptoethanol (0.60 ml, 8.6 mmol), and potassium carbonate (0.99 g, 7.1 mmol) were combined in dry DMF (15 ml) and stirred at 130° C. for 4 h. The solution was allowed to cool and was concentrated in vacuo. Purification by silica gel chromatography (70% EtOAc/hexanes) gave 1.29 g (93%) of 2-(3-amino-2-nitro-phenylsulfanyl)-ethanol as a bright red solid. 1H NMR (300 MHz, DMSO-d6) δ 7.20 (t, 1H, J=8.1 Hz), 6.80 (s, 2H), 6.73 (dd, 1H, J=8.4, 0.9 Hz), 6.63 (dd, 1H, J=7.8, 1.2 Hz), 4.92 (t, 1H, J=6.0 Hz), 3.58 (q, 2H, J=6.0 Hz), 2.98 (t, 2H, J=6.0 Hz).

1. temperatureto cool
2. concentrationwas concentrated in vacuo
3. customPurification by silica gel chromatography (70% EtOAc/hexanes)