反应详情

A 50-mL flask was charged with cesium carbonate (0.078 g, 0.238 mmol), palladium diacetate (0.0019 g, 0.0085 mmol) and BINAP (0.0079 g, 0.013 mmol) and flushed with argon for 30 minutes. A solution of trifluoromethanesulfonic acid 6-(3-phenylpropylcarbamoyl)pyridin-3-yl ester (0.066 g, 0.17 mmol) and piperazin-1-yl-(2-trifluoromethylphenyl)methanone (0.053 g, 0.20 mmol) in toluene (2 mL) was added via syringe. The reaction mixture was heated at 100 C for 26 h, cooled to room temperature, diluted with toluene (20 mL), filtered and concentrated in vacuo. The crude product was purified by column chromatography to afford the title compound as a white solid (0.011 g, 13% yield). 1H NMR (300 MHz, CDCl3) δ 8.15, 8.04, 7.85, 7.74, 7.50-7.65, 7.36, 7.30-7.10, 3.90-4.10, 3.55-3.30, 3.22, 2.72, 1.96. MS (ES+) m/z 497.4 (M+1).

1. customflushed with argon for 30 minutes
2. temperatureThe reaction mixture was heated at 100 C for 26 h
3. filtrationfiltered
4. concentrationconcentrated in vacuo
5. customThe crude product was purified by column chromatography