Ethanol → HCID 135834141、化合物
反応式
[CH:1]([C:3]1[C:8](OC)=[CH:7][CH:6]=[CH:5][C:4]=1[NH:11][C:12](=[O:18])OC(C)(C)C)=O.[NH:19]1[C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=2[N:21]=[C:20]1[CH2:28]C(OCC)=O.N1CCCCC1.[CH2:40]([OH:42])C>>[NH:19]1[C:23]2[CH:24]=[CH:25][CH:26]=[CH:27][C:22]=2[N:21]=[C:20]1[C:28]1[C:12](=[O:18])[NH:11][C:4]2[C:3]([CH:1]=1)=[CH:8][CH:7]=[CH:6][C:5]=2[O:42][CH3:40]参加物
実験手順
A solution of tert-butyl 2-formyl-3-methoxyphenylcarbamate (13-1, 0.50 g, 1.9 mmol, 1 equiv, prepared by the formylation method utilized in the examples above), ethyl 1H-benzimidazol-2-ylacetate (0.39 g, 1.9 mmol, 1.0 equiv, prepared by the method of Rahmouni, M, Derdour, A., Bazureau, J., and Hamelin Tetrahedron Lett. 1994, 35, 4563-4564), and piperidine (0.090 mL, 0.91 mmol, 0.48 equiv) in ethanol (50 mL) was heated at reflux for 20 h. The reaction mixture was cooled and the precipitate which formed was filtered and air dried to give 3-(1H-benzimidazol-2-yl)-8-methoxy-2(1H)-quinolinone (13-2). 1H NMR (400 MHz, DMSO-d6) δ 12.59 (s, 1H), 12.43 (s, 1H), 9.25 (s, 1H), 7.71 (m, 1H), 7.66 (m, 1H), 7.55 (t, 1H, J=8.2 Hz), 7.20 (m, 2H), 7.03 (d, 1H, J=8.2 Hz), 6.85 (d, 1H, J=8.2 Hz).
後処理
- customprepared by the method of Rahmouni, M, Derdour
- temperatureat reflux for 20 h
- temperatureThe reaction mixture was cooled
- customthe precipitate which formed
- filtrationwas filtered
- customair dried
出典と根拠
- ORDレコード
- ord-9fc2e3f719dd4c25a1bd6ccf7b67a8fc
- 出典データセット
- uspto-grants-2002_11
- 特許番号
- US06479512B1
反応ノート
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