Iodine → 6-Iodo-4'-methylaminoflavone
反応式
[I:1]I.C([Sn](CCCC)(CCCC)[C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][CH:17]=1)[O:14][C:13]([C:18]1[CH:23]=[CH:22][C:21]([NH:24][CH3:25])=[CH:20][CH:19]=1)=[CH:12][C:11]2=[O:26])CCC.S(=O)(O)[O-].[Na+]>C(Cl)(Cl)Cl>[I:1][C:8]1[CH:9]=[C:10]2[C:15](=[CH:16][CH:17]=1)[O:14][C:13]([C:18]1[CH:23]=[CH:22][C:21]([NH:24][CH3:25])=[CH:20][CH:19]=1)=[CH:12][C:11]2=[O:26]参加物
実験手順
A chloroform solution of iodine (1.5 ml, 1 M) was added to a chloroform solution (20 ml) that contained compound 8 (100 mg, 0.185 mmol) at room temperature. The obtained mixture was reacted at room temperature for 10 minutes, and a saturated sodium bisulfite aqueous solution (15 ml) was then added thereto, so as to terminate the reaction. The chloroform layer was separated, and it was then dried over sodium sulfate. Thereafter, the solvent was distilled away under reduced pressure, and the residue was then subjected to silica gel column chromatography using ethyl acetate/hexane (1/2) as an elution solvent, so as to obtain a product of interest, 6-iodo-4′-methylaminoflavone (compound 10). Yield: 20 mg (yield constant: 28.7%) 1H NMR (300 MHz, CDCl3) δ8.53 (s, 1H), 7.90 (d, J=9.0 Hz, 1H), 7.75 (d, J=8.4 Hz, 2H), 7.28 (d, J=10.8 Hz, 1H), 6.64-6.69 (m, 3H), 4.15 (s, 1H), 2.93 (s, 3H). MS m/z 377 (M+).
後処理
- customat room temperature
- customThe obtained mixture was reacted at room temperature for 10 minutes
- customso as to terminate
- customthe reaction
- customThe chloroform layer was separated
- dry with materialit was then dried over sodium sulfate
- distillationThereafter, the solvent was distilled away under reduced pressure
出典と根拠
- ORDレコード
- ord-7b4ea587df7d4e989b4921161f990e8e
- 出典データセット
- uspto-grants-2012_06
- 特許番号
- US08192717B2
反応ノート
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