反应详情

mL 1-(5-Bromo-3-(phenylthio)pyridin-2-yl)thiourea (5.0 g, 14.69 mmol), triethylamine (6.0 mL, 44 mmol), 1-chloropropan-2-one (2.3 mL, 29.4 mmol), and EtOH (100 mL) were heated to 70° C. for 6 hours. The ethanol was reduced to ˜½ volume and water (150 mL) added and the precipitate was filtered to afford the title compound (5.6 g, 100% yield) as a tan solid after drying. 1H NMR (CDCl3) δ 9.01 (s, 1H), 8.42 (m, 1H), 7.92 (m, 1H), 7.32-7.15 (m, 5H), 6.44 (m, 1H0, 2.32 (m, 3H). Mass spectrum (apci) m/z=379.8 (M+H).

1. additionadded
2. filtrationthe precipitate was filtered