反应详情

温度

80 °C

Diethyl 2-(3-bromophenyl)propanedioate (3.75 g), 2-chloro-4-(trifluoromethyl)phenyl boronic acid (4.0 g), dioxane (10 mL), 2M aqueous sodium carbonate solution (5 mL) and dichlorobis(triphenylphosphine)palladium(II) (422 mg) were added to a vial, and the reaction mixture was heated at 80° C. for 30 minutes. The reaction mixture was then cooled, poured into water, extracted with ethyl acetate, and the organic phase was separated and concentrated under vacuum in the presence of Celite® (diatomaceous earth) to yield a crude solid. The crude solid was purified by medium pressure liquid chromatography on silica gel eluting with a gradient of ethyl acetate in hexanes to yield 3.2 g of the title compound. 1H NMR (CDCl3) δ 7.74 (s, 1H), 7.57 (d, 1H), 7.37-7.50 (m, 5H), 4.57 (s, 1H), 4.23 (q, 4H), 1.27 (t, 6H).

1. temperatureThe reaction mixture was then cooled
2. extractionextracted with ethyl acetate
3. customthe organic phase was separated
4. concentrationconcentrated under vacuum in the presence of Celite® (diatomaceous earth)
5. customto yield a crude solid
6. customThe crude solid was purified by medium pressure liquid chromatography on silica gel eluting with a gradient of ethyl acetate in hexanes