Triethylamine → 2-(4-Methoxy-2-methylphenyl)-5-(4-pentylbicyclo[2.2.2]oct-1-yl)-1,3,4-oxadiazole
反応式
[Cl-].ClC1N(C)CC[N+]=1C.[CH3:10][C:11]1[CH:19]=[C:18]([O:20][CH3:21])[CH:17]=[CH:16][C:12]=1[C:13]([OH:15])=O.[CH2:22]([C:27]12[CH2:34][CH2:33][C:30]([C:35]([NH:37][NH2:38])=O)([CH2:31][CH2:32]1)[CH2:29][CH2:28]2)[CH2:23][CH2:24][CH2:25][CH3:26].C(N(CC)CC)C>C(Cl)Cl>[CH3:21][O:20][C:18]1[CH:17]=[CH:16][C:12]([C:13]2[O:15][C:35]([C:30]34[CH2:31][CH2:32][C:27]([CH2:22][CH2:23][CH2:24][CH2:25][CH3:26])([CH2:34][CH2:33]3)[CH2:28][CH2:29]4)=[N:37][N:38]=2)=[C:11]([CH3:10])[CH:19]=1参加物
反応物 4
生成物 1
試薬・触媒・溶媒 1
実験手順
2-Chloro-1,3-dimethyl-4,5-dihydro-1H-imidazol-3-ium chloride (5.07 g, 30.0 mmol) was added to a solution of 2-methyl-4-methoxybenzoic acid (2-D) (856 mg, 5.0 mmol) and 4-pentylbicyclo[2.2.2]octane-1-carbohydrazide (2-C) (1.25 g, 5.25 mmol) in methylene chloride (60 mL) followed by triethylamine (8.36 mL, 60 mmol) and the mixture stirred at room temperature for 48 h. The mixture was diluted with methylene chloride and washed with water, 1N HCl, 10% NaHCO3, brine, dried (MgSO4) and concentrated in vacuo. The residue was purified by column chromatography (silica gel, hexane:ethyl acetate, 9:1) to give 2-(4-methoxy-2-methylphenyl)-5-(4-pentylbicyclo[2.2.2]oct-1-yl)-1,3,4-oxadiazole (2-E) Mass spectrum: 369 (M+1); 1H NMR (500 MHz, CDCl3): δ 0.93 (t, 3H); 1.27 (m, 8H); 1.56 (m, 6H); 2.03 (m, 6H); 2.70 (s, 3H); 3.89 (s, 3H); 6.86 (m, 2H); 7.89 (d, 1H) ppm.
後処理
- washwashed with water, 1N HCl, 10% NaHCO3, brine
- dry with materialdried (MgSO4)
- concentrationconcentrated in vacuo
- customThe residue was purified by column chromatography (silica gel, hexane:ethyl acetate, 9:1)
出典と根拠
- ORDレコード
- ord-d12e7d0d4e094acc9af766b376f160b5
- 出典データセット
- uspto-grants-2009_03
- 特許番号
- US07504402B2
反応ノート
読み込み中…