反应详情

温度

100 °C

A reaction mixture of ethyl 3-chloro-4-(trifluoromethylsulfonyloxy)benzoate (T1.5) (3.00 g, 9.02 mmol), 2-fluoro-5-methoxyphenylboronic acid (commercially available from Aldrich) (1.84 g, 10.8 mmol), tetrakis(triphenylphosphine)palladium (0.521 g, 0.451 mmol) and potassium carbonate (2.49 g, 18.0 mmol) in DMF (20 mL), was purged with N2 three times and then heated at 100° C. for 4 hours. The reaction was cooled to room temperature, and EtOAc (130 mL) was added. The mixture was then washed with brine (30×4 mL). The organic layer was dried over MgSO4. The residue was purified by CombiFlash® silica gel column (eluting with hexane/EtOAc; 85/15) to give T1.6. 1H NMR (400 MHz, CDCl3) δ ppm 8.08 (d, 1H), 7.90 (d, 1H), 7.33 (dd, 1H), 6.96-7.02 (m, 1H), 6.82-6.85 (m, 1H), 6.74 (d, 1H), 4.33 (q, 2H), 4.31 (s, 3H), 1.34 (t, 3H). MS ESI (pos.) m/e: 309.1 (M+H)+.

1. customwas purged with N2 three times
2. temperatureThe reaction was cooled to room temperature
3. additionEtOAc (130 mL) was added
4. washThe mixture was then washed with brine (30×4 mL)
5. dry with materialThe organic layer was dried over MgSO4
6. customThe residue was purified by CombiFlash® silica gel column (eluting with hexane/EtOAc; 85/15)
7. customto give T1.6