反应详情

To a stirred solution of dimethyl 2-(2-fluoro-4-nitrophenyl)-2-methylmalonate (1.0 g, 3.50 mmol, 1.0 eq) in methanol (20 mL) was added NaBH4 (0.67 gm, 17.63 mmol, 5.0 eq) at 0° C. and stirred at RT for 16 h. The mixture was diluted with water (20 mL), extracted with ethyl acetate (20 mL). The organic layer was washed with brine, dried over anhydrous Na2SO4, and the solvent was vaporated under reduced pressure. The crude product obtained was purified by CC using EtOAc/PE (2:3) to get 2-(2-fluoro-4-nitrophenyl)-2-methylpropane-1,3-diol (400 mg, 50%; TLC system: EtOAc/PE (1:1), Rf: 0.3).

1. extractionextracted with ethyl acetate (20 mL)
2. washThe organic layer was washed with brine
3. dry with materialdried over anhydrous Na2SO4
4. customThe crude product obtained
5. customwas purified by CC