Triethylamine → HCID 58097361、化合物
反応式
[Br:1][C:2]1[CH:3]=[C:4]([O:11][CH3:12])[C:5]([NH2:10])=[C:6]([O:8][CH3:9])[CH:7]=1.C(N(CC)CC)C.[C:20]([CH2:24][C:25](Cl)=[O:26])([CH3:23])([CH3:22])[CH3:21]>ClCCl>[Br:1][C:2]1[CH:3]=[C:4]([O:11][CH3:12])[C:5]([NH:10][C:25](=[O:26])[CH2:24][C:20]([CH3:23])([CH3:22])[CH3:21])=[C:6]([O:8][CH3:9])[CH:7]=1参加物
5
実験手順
To a solution of the crude 5-bromo-1,3-dimethoxy-2-amino-benzene from above and triethylamine (1.5 g, 15 mmol) in anhydrous dichloromethane (50 mL) was added dropwise tert-butyl acetyl chloride (1.6 g, 12 mmol) with stirring at room temperature. The reaction mixture was stirred for 3 hours at room temperature. Then the reaction mixture was diluted with dichloromethane, washed with water, dried over anhydrous sodium sulfate, and evaporated to dryness under reduced pressure. The residue was purified by silica gel column (ISCO, hexane/EtOAc, 0-40%, 40 min) to give a white solid (3.0 g, 91%). 1H-NMR (DMSO-d6, 400 MHz): δ 8.69 (brs, 1H, exchangeable with D2O), 6.87 (s, 2H), 3.73 (s, 6H), 2.11 (s, 2H), 1.02 (s, 9H).
後処理
- stirringThe reaction mixture was stirred for 3 hours at room temperature
- washwashed with water
- dry with materialdried over anhydrous sodium sulfate
- customevaporated to dryness under reduced pressure
- customThe residue was purified by silica gel column (ISCO, hexane/EtOAc, 0-40%, 40 min)
出典と根拠
- ORDレコード
- ord-f2d8b3a07dfc439f9eeae9f0ea3b0e4d
- 出典データセット
- uspto-grants-2012_10
- 特許番号
- US08293911B2
反応ノート
読み込み中…