Phosphorus tribromide → 2-{4-[(2-bromoethyl)(ethyl)amino]phenyl}-6-nitro-1H-benzo[de]isoquinolin-1,3-(2H)-dione
反応式
[CH2:1]([N:3]([CH2:28][CH2:29]O)[C:4]1[CH:9]=[CH:8][C:7]([N:10]2[C:19](=[O:20])[C:18]3[CH:21]=[CH:22][C:23]([N+:24]([O-:26])=[O:25])=[C:16]4[C:17]=3[C:12](=[CH:13][CH:14]=[CH:15]4)[C:11]2=[O:27])=[CH:6][CH:5]=1)[CH3:2].P(Br)(Br)[Br:32]>C(Cl)(Cl)Cl>[Br:32][CH2:29][CH2:28][N:3]([CH2:1][CH3:2])[C:4]1[CH:9]=[CH:8][C:7]([N:10]2[C:19](=[O:20])[C:18]3[CH:21]=[CH:22][C:23]([N+:24]([O-:26])=[O:25])=[C:16]4[C:17]=3[C:12](=[CH:13][CH:14]=[CH:15]4)[C:11]2=[O:27])=[CH:6][CH:5]=1参加物
実験手順
1.5 g (3.7 mmol) of 2-{4-[ethyl(2-hydroxyethyl)amino]phenyl}-6-nitro-1H-benzo[de]isoquinolin-1,3(2H)-dione was dissolved in 80 mL of chloroform and heated to a boil. Then, 10.7 mL (11.1 mmol) of phosphorus tribromide was added dropwise within 20 minutes, and the solution was heated at reflux for an additional 2 hours. The mixture was then poured onto ice, and the aqueous phase was extracted with chloroform. The combined organic phases were dried over magnesium sulfate. The purification was performed by column chromatography on silica gel with toluene as the developing solvent. Yield: 0.90 g (52% of the theoretical), dark-red powder. 1H-NMR (d6DMSO/300 MHz): δ=1.12 (t, J=8.1 Hz, 3H), 1.86 (q, 2H), 3.58 (t, J=6.9 Hz, 2H), 4.01 (t, J=6.9 Hz, 2H), 6.96 (d, J=4.2 Hz, 2H, phenyl), 7.83 (d, J=7.6 Hz, 1H, naphthalene), 7.95 (d, J=4.4 Hz, 2H, phenyl), 8.33 (d, J=8.1 Hz, 1H, naphthalene), 8.52 (d, J=8.8 Hz, 1H, naphthalene), 8.67 (d, J=8.0 Hz, 1H, naphthalene), 9.13 (d, J=8.6 Hz, 1H, naphthalene).
後処理
- temperatureheated to a boil
- temperaturethe solution was heated
- temperatureat reflux for an additional 2 hours
- additionThe mixture was then poured onto ice
- extractionthe aqueous phase was extracted with chloroform
- dry with materialThe combined organic phases were dried over magnesium sulfate
- customThe purification
出典と根拠
- ORDレコード
- ord-25df7fc1a05d45788fd7c453fa35d602
- 出典データセット
- uspto-grants-2009_06
- 特許番号
- US07544215B2
反応ノート
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