反应详情

温度

0 °C

To a suspension of sodium hydride (60% weight dispersion in mineral oil, 1.35 g, 33.8 mmol) in PhMe (35 mL) at 0° C. was added ethyl 2-(diethoxyphosphoryl)acetate (7.57 g, 33.8 mmol, 6.7 mL). The reaction mixture was stirred at 0° C. for 20 min and a solution of bis(4-fluorophenyl)methanone (5.65 g, 25.9 mmol) in PhMe (35 mL) was added. The reaction mixture was warmed to room temperature, stirred for 1 h, and heated to 50° C. for 3 d. The reaction mixture was diluted with Et2O, washed with water (2×), brine (1×), dried over MgSO4, filtered, and concentrated to give ethyl 3,3-bis(4-fluorophenyl)acrylate which was used in the next step without further purification.

1. temperatureThe reaction mixture was warmed to room temperature
2. stirringstirred for 1 h
3. temperatureheated to 50° C. for 3 d
4. washwashed with water (2×), brine (1×)
5. dry with materialdried over MgSO4
6. filtrationfiltered
7. concentrationconcentrated