反应详情

To a solution (E)-ethyl 3-(4-(benzyloxy)-3,5-difluorophenyl)-2-methylacrylate (8) (1.4 g, 4.21 mmol) in ethanol (25 mL) was added Pd/C (140 mg, 10% Degussa type). A balloon of hydrogen gas was added and the reaction was evacuated and back-filled with hydrogen three times. The reaction was stirred under a hydrogen balloon overnight at room temperature, filtered through a pad of celite and concentrated in vacuo to give ethyl 3-(3,5-difluoro-4-hydroxyphenyl)-2-methylpropanoate (9).

1. customthe reaction was evacuated
2. additionback-filled with hydrogen three times
3. filtrationfiltered through a pad of celite
4. concentrationconcentrated in vacuo