反应详情

To a solution of diethyl 2-(2-(4-bromophenoxy)ethyl)malonate (2.50 g, 6.96 mmol) in anhydrous MeOH (15 mL) was added sodium borohydride (1.32 g, 34.8 mmol) in portions at 0° C. The reaction mixture was stirred for 30 minutes at this temperature. The reaction mixture was then carefully quenched with water and extracted with ethyl acetate (4×50 mL). The combined organic layers were dried over sodium sulfate, filtered, and concentrated under reduced pressure to give the crude product. The crude product was purified by flash chromatography (ethyl acetate:petroleum ether) to deliver the title compound (1.0 g, 52%) as a white solid.

1. customThe reaction mixture was then carefully quenched with water
2. extractionextracted with ethyl acetate (4×50 mL)
3. dry with materialThe combined organic layers were dried over sodium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure