反应详情

温度

40 °C

3-(4-(2-Isocyanatoethyl)phenyl)-1-(4-(trifluoromethoxy)phenyl)-1H-1,2,4-triazole (C34a) (0.18 g, 0.47 mmol), 1-(2-isopropyl-5-methylphenyl)thiourea (0.10 g, 0.50 mmol), and cesium carbonate (0.21 g, 0.63 mmol) in acetonitrile (2.3 mL) were stirred at room temperature overnight. The reaction was diluted with ethyl acetate and washed with water. The organic layers were dried over sodium sulfate, filtered, and concentrated. The crude material was dissolved in butanone (2.3 mL) followed by addition of acryloyl chloride (0.045 mL, 0.55 mmol). The reaction was heated at 40° C. for 4 hours. The reaction was cooled and concentrated. Purification by flash column chromatography using 0-100% ethyl acetate/B, where B=1:1 dichloromethane/hexanes, as eluent followed by drying in a vacuum oven provided the title compound as a yellow oil (0.13 g, 44%).

1. washwashed with water
2. dry with materialThe organic layers were dried over sodium sulfate
3. filtrationfiltered
4. concentrationconcentrated
5. dissolutionThe crude material was dissolved in butanone (2.3 mL)
6. temperatureThe reaction was cooled
7. concentrationconcentrated
8. customPurification by flash column chromatography
9. customby drying in a vacuum oven