5-Bromo-2-fluorobenzaldehyde → (5-Bromo-2-fluorophenyl)methanol
反応式
[Br:1][C:2]1[CH:3]=[CH:4][C:5]([F:10])=[C:6]([CH:9]=1)[CH:7]=[O:8].[BH4-].[Na+]>C1COCC1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]([F:10])=[C:6]([CH:9]=1)[CH2:7][OH:8]参加物
4
反応条件
- 温度
- 0 °C
実験手順
To a solution of 5-bromo-2-fluoro-benzaldehyde (6.10 g, 30.0 mmol) in 30 mL of THF at 0° C. is added 5 mL of sodium borohydride (2.0M solution in triglyme, 10.0 mmol). The reaction mixture is stirred at 0° C. for 25 min and then quenched by the addition of 1N HCl. The mixture is diluted with EtOAc and the layers are separated. The organic layer is washed with H2O and saturated NaCl. The organic layer is dried over MgSO4, filtered and concentrated. The crude product is purified by column chromatography eluting with 15% EtOAc/hexanes to afford the title compound (6.00 g, 29.3 mmol).
後処理
- customquenched by the addition of 1N HCl
- additionThe mixture is diluted with EtOAc
- customthe layers are separated
- washThe organic layer is washed with H2O and saturated NaCl
- dry with materialThe organic layer is dried over MgSO4
- filtrationfiltered
- concentrationconcentrated
- customThe crude product is purified by column chromatography
- washeluting with 15% EtOAc/hexanes
出典と根拠
- ORDレコード
- ord-dfa8e518af0e4946b9f86e5f4d0e8666
- 出典データセット
- uspto-grants-1998_03
- 特許番号
- US05731315
反応ノート
読み込み中…