1,2-Dimethyl-4-(2-fluoro-4-nitrophenyl)piperazine → HCID 63610994、化合物
反応式
[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([C:8]2[CH:13]=[CH:12][C:11]([N+:14]([O-])=O)=[CH:10][C:9]=2[F:17])[CH2:4][CH:3]1[CH3:18]>[Pd].C(O)C>[NH2:14][C:11]1[CH:12]=[CH:13][C:8]([N:5]2[CH2:6][CH2:7][N:2]([CH3:1])[CH:3]([CH3:18])[CH2:4]2)=[C:9]([F:17])[CH:10]=1参加物
4
実験手順
Absolute ethanol (2 mL) was added to a two-necked round-bottomed flask containing palladium on carbon (0.09 g, 0.42 mmol). The reaction vessel was evacuated and purged with nitrogen three times. 1,2-Dimethyl-4-(2-fluoro-4-nitrophenyl)piperazine (1.06 g, 4.2 mmol) in absolute ethanol (10 mL) was added and the vessel purged thrice more with nitrogen. After purging thrice with hydrogen, the reaction was left to stir under a hydrogen atmosphere at room temperature for 18 h. The reaction mixture was filtered through a pad of Celite washing with additional ethanol. Excess ethanol was removed under reduced pressure to afford the title compound as an off-white oil. LC-MS (UV 215nm): 93%; m/z 224.35; 0.58 min.
後処理
- customThe reaction vessel was evacuated
- custompurged with nitrogen three times
- customthe vessel purged thrice more with nitrogen
- customAfter purging thrice with hydrogen
- waitthe reaction was left
- filtrationThe reaction mixture was filtered through a pad of Celite
- washwashing with additional ethanol
- customExcess ethanol was removed under reduced pressure
出典と根拠
- ORDレコード
- ord-30d7dd5be29d425887ce6c85a69df762
- 出典データセット
- uspto-grants-2008_10
- 特許番号
- US07442698B2
反応ノート
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