反应详情

温度

100 °C

A mixture of 2-(3-bromo-5-chloro-4-(2,2,2-trifluoroethoxy)phenyl)-acetate (0.750 g, 2.0 mmol), 4-trifluoromethyl phenylboronic acid (0.567 g, 3.0 mmol), Pd (PPh3)4 (0.231 g, 0.2 mmol), cesium fluoride (0.604 g, 4.0 mmol) in DME (10 ml) was stirred overnight at 100° C., upon which the precipitates were removed by filtration. The filtrate was diluted with water and extracted with ethyl acetate (2×50 mL). The combined organic layers were washed with water followed by brine and dried over Na2SO4. The crude residue was purified by flash column chromatography to give ethyl 2-(5-chloro-6-(2,2,2-trifluoroethoxy)-4′-(trifluoromethyl)biphenyl-3-yl)acetate (0.525 g, 73.6%) as an off white solid.

1. customwere removed by filtration
2. additionThe filtrate was diluted with water
3. extractionextracted with ethyl acetate (2×50 mL)
4. washThe combined organic layers were washed with water
5. dry with materialdried over Na2SO4
6. customThe crude residue was purified by flash column chromatography