反应详情

A suspension of [3-methoxy-4-(4-methyl-imidazol-1-yl)-phenyl]-thiourea (131 mg, 0.50 mmol) and of 2-bromo-6-(carbethoxy)-cyclohexanone (137 mg, 0.55 mmol) in ethanol (5 mL) was stirred at room temperature for 2 days and then heated to reflux under an atmosphere of nitrogen over night. After cooling to room temperature the solvent was evaporated under reduced pressure and the residue was purified by column chromatography on silica gel using dichloromethane/methanol (19:1 v/v) as eluent to yield the title compound (180 mg, 87%) as a white solid. MS ISP (m/e): 413.3 (100) [(M+H)+]. 1H NMR (DMSO-D6, 300 MHz): δ (ppm)=10.28 (s, 1H), 7.66 (d, 1H), 7.64 (s, 1H), 7.21 (d, 1H), 7.11 (d, 1H), 7.01 (s, 1H), 4.10 (q, 2H), 3.76 (s, 3H), 3.66 (m, 1H), 2.62 (m, 2H), 2.14 (s, 3H), 1.68-2.09 (m, 4H), 1.19 (t, 3H).

1. temperatureheated
2. temperatureto reflux under an atmosphere of nitrogen over night
3. customwas evaporated under reduced pressure
4. customthe residue was purified by column chromatography on silica gel