Acetic Anhydride → HCID 18328986、化合物
反応式
[CH3:1][CH:2]1[C:14]2[NH:13][C:12]3[C:7](=[CH:8][C:9]([O:15][CH3:16])=[CH:10][CH:11]=3)[C:6]=2[CH2:5][CH2:4][NH:3]1.[C:17](OC(=O)C)(=[O:19])[CH3:18]>[NH4+].[OH-].C(OCC)(=O)C>[CH3:1][CH:2]1[C:14]2[NH:13][C:12]3[C:7](=[CH:8][C:9]([O:15][CH3:16])=[CH:10][CH:11]=3)[C:6]=2[CH2:5][CH2:4][N:3]1[C:17](=[O:19])[CH3:18]参加物
5
実験手順
To a solution of 700 mg (3.24 mmol) 1-methyl-6-methoxy-1,2,3,4-tetrahydro-β-carboline, and 5 drops NH4OH in ethyl acetate was added 0.4 mL (3.88 mmol) acetic anhydride under N2 gas. The reaction was stirred for 20 min. and then washed with water. The organic layer collected was dried over MgSO4, filtered, and concentrated in vacuo to a dark oil. The oil was dissolved in methanol and chromatographed on reverse phase C-18 using methanol and water. The product was collected and concentrated to a white solid, which showed characteristic peaks: NMR (CDCl3) δ: 1.45 ppm (d, 3H), 2.25 ppm (s, 3H), 3.85 ppm (s, 3H).
後処理
- washwashed with water
- customThe organic layer collected
- dry with materialwas dried over MgSO4
- filtrationfiltered
- concentrationconcentrated in vacuo to a dark oil
- dissolutionThe oil was dissolved in methanol
- customchromatographed on reverse phase C-18
- customThe product was collected
- concentrationconcentrated to a white solid, which
出典と根拠
- ORDレコード
- ord-36e5f3b52127447b84cfc08d4bcd774f
- 出典データセット
- uspto-grants-1994_05
- 特許番号
- US05314908
反応ノート
読み込み中…