反应详情

温度

130 °C

To a solution of (R)-1-(2-bromo-4-chlorophenyl)-2,2,2-trifluoroethanol (1 g, 3.5 mmol) and 1H-benzo[d]imidazole (408 mg, 3.5 mmol) in toluene (24 mL) was added sequentially, CuI (131 mg, 0.69 mmol), K2CO3 (1.19 g, 8.63 mmol), and (1R,2R)—N1,N2-dimethylcyclohexane-1,2-diamine (196 mg, 1.38 mmol). The reaction mixture was purged with N2 and then heated at 130° C. in a sealed tube for 12 h. Afterward, the reaction was cooled to RT. The solid was removed by filtration and the filtrate was concentrated and purified by flash column (EtOAc in hexane=0 to 50%) to afford —(R)-1-(2-(1H-benzo[d]imidazol-1-yl)-4-chlorophenyl)-2,2,2-trifluoroethanol as a white solid.

1. customThe reaction mixture was purged with N2
2. temperatureAfterward, the reaction was cooled to RT
3. customThe solid was removed by filtration
4. concentrationthe filtrate was concentrated
5. custompurified by flash column (EtOAc in hexane=0 to 50%)