Sodium hydride → Ethyl 3-cyclopropyl-2-(4-nitro-3-(2,2,2-trifluoroethoxy)phenyl)propanoate
反応式
[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([CH2:10][C:11]([O:13][CH2:14][CH3:15])=[O:12])=[CH:6][C:5]=1[O:16][CH2:17][C:18]([F:21])([F:20])[F:19])([O-:3])=[O:2].[H-].[Na+].[CH:24]1([CH2:27]Br)[CH2:26][CH2:25]1.[NH4+].[Cl-]>CN(C=O)C>[CH:24]1([CH2:27][CH:10]([C:7]2[CH:8]=[CH:9][C:4]([N+:1]([O-:3])=[O:2])=[C:5]([O:16][CH2:17][C:18]([F:19])([F:20])[F:21])[CH:6]=2)[C:11]([O:13][CH2:14][CH3:15])=[O:12])[CH2:26][CH2:25]1参加物
6
反応条件
- 温度
- 25 °C
実験手順
Ethyl 2-(4-nitro-3-(2,2,2-trifluoroethoxy)phenyl)acetate (2 g, 6.5 mmol) was dissolved in 50 mL anhydrous DMF, NaH (60% wt. in oil, 0.171 g, 7.1 mmol) was added at 0° C. The reaction mixture was stirred for 0.5 h at 25° C. and cyclopropylmethyl bromide (0.967 g, 7.16 mmol) was added drop wise at 0° C. The reaction mixture was stirred at 0° C. for 1 h and saturated NH4Cl solution (10 mL) was added. The reaction mixture was extracted with EtOAc (3×20 mL) and the combined organic phases were washed with water (3×20 mL) and brine (20 mL), dried over MgSO4, filtered and concentrated under reduced pressure to give ethyl 3-cyclopropyl-2-(4-nitro-3-(2,2,2-trifluoroethoxy)phenyl)propanoate (1.05 g) as a colorless oil.
後処理
- stirringThe reaction mixture was stirred at 0° C. for 1 h
- extractionThe reaction mixture was extracted with EtOAc (3×20 mL)
- washthe combined organic phases were washed with water (3×20 mL) and brine (20 mL)
- dry with materialdried over MgSO4
- filtrationfiltered
- concentrationconcentrated under reduced pressure
出典と根拠
- ORDレコード
- ord-fbdb607c76bb44da8449c3d796769bef
- 出典データセット
- uspto-grants-2013_02
- 特許番号
- US08367863B2
反応ノート
読み込み中…