Lithium borohydride → (4-Bromo-3-(trifluoromethoxy)phenyl)methanol
反応式
[BH4-].[Li+].[Br:3][C:4]1[CH:13]=[CH:12][C:7]([C:8](OC)=[O:9])=[CH:6][C:5]=1[O:14][C:15]([F:18])([F:17])[F:16]>C1COCC1>[Br:3][C:4]1[CH:13]=[CH:12][C:7]([CH2:8][OH:9])=[CH:6][C:5]=1[O:14][C:15]([F:16])([F:18])[F:17]参加物
4
反応条件
- 温度
- 70 °C
実験手順
To a solution of lithium borohydride (1.16 g, 53.4 mmol) in THF (100 mL) was added methyl 4-bromo-3-(trifluoromethoxy)benzoate (10.6 g, 35.6 mmol) at 0° C., and the resulting solution was heated at 70° C. for 3 h under nitrogen atmosphere. The reaction was quenched with water and the mixture was extracted with ethyl acetate. The combined organic layers were washed with saturated brine, dried over anhydrous sodium sulfate and filtered. The filtrate was evaporated under vacuum to afford the crude title product (9.17 g, 34 mmol). MS (ESI) m/z 270.1 M+, 272.1 [M+2]+.