反应详情

温度

0 °C

To a 0° C. solution of 4′-(trifluoromethyl)biphenyl-4-ol (263 mg, 1.1 mmol) in tetrahydrofuran (6 mL) was added sodium hydride (44.2 mg, 60 wt % in mineral oil, 1.1 mmol). The reaction mixture was stirred at 0° C. for 30 minutes. A solution of the crude methyl 641-(methylsulfonyloxy)ethyl)nicotinate prepared above in DMSO (6 mL) was added. The mixture was heated to 60° C. for 48 hours. The mixture was quenched with water and extracted with dichloromethane. The organic layer was dried over sodium sulfate, filtered and concentrated to give 6-(1-(4′-(trifluoromethyl)biphenyl-4-yloxy)ethyl)nicotinic acid (60 mg). 1H NMR (400 MHz, CD3OD, δ): 8.98 (m, 1H), 8.19-8.21 (m, 1H), 7.54-7.61 (m, 4H), 7.42-7.44 (m, 3H), 6.86-6.89 (m, 1H), 5.42-4.43 (q, 1H), 1.58 (d, 9H).

1. additionwas added
2. temperatureThe mixture was heated to 60° C. for 48 hours
3. customThe mixture was quenched with water
4. extractionextracted with dichloromethane
5. dry with materialThe organic layer was dried over sodium sulfate
6. filtrationfiltered
7. concentrationconcentrated