Acetamide, N-(4-fluoro-3-nitrophenyl)- → N-{3-Nitro-4-[(tetrahydro-2H-pyran-4-ylmethyl)amino]phenyl}acetamide
反応式
[NH2:1][CH2:2][CH:3]1[CH2:8][CH2:7][O:6][CH2:5][CH2:4]1.F[C:10]1[CH:15]=[CH:14][C:13]([NH:16][C:17](=[O:19])[CH3:18])=[CH:12][C:11]=1[N+:20]([O-:22])=[O:21]>CCO>[N+:20]([C:11]1[CH:12]=[C:13]([NH:16][C:17](=[O:19])[CH3:18])[CH:14]=[CH:15][C:10]=1[NH:1][CH2:2][CH:3]1[CH2:8][CH2:7][O:6][CH2:5][CH2:4]1)([O-:22])=[O:21]参加物
実験手順
4-Aminomethyl tetrahydropyran (13.7 g, 0.119 mol) was added to a solution of N-(4-Fluoro-3-nitrophenyl)acetamide (20.2 g, 0.102 mol) and TEA (20.9 mL, 15.2 g, 0.15 mol) in EtOH (350 mL). The reaction mixture was stirred overnight at reflux. The orange-red solid was collected by filtration, washed with water and dried in vacuo. The filtrate was concentrated. The residue was dissolved in EtOAc, washed with H2O, brine and dried over anhydrous Na2SO4. The crude product was purified by silica gel flash chromatography using EtOAc as eluent. Total yield: 28.9 g (97%). 1H NMR (400 MHz, CHLOROFORM-D) δ 1.4 (m, 2 H), 1.7 (m, 2 H), 1.89-2.00 (m, 1 H), 2.18 (s, 3 H), 3.22 (dd, J=6.44, 5.66 Hz, 2 H), 3.42 (dt, J=11.86, 2.05 Hz, 2 H), 4.02 (dd, J=10.94, 3.71 Hz, 2 H), 6.84 (d, J=9.37 Hz, 1 H), 7.20 (br.s, 1 H), 7.81 (dd, J=9.37, 2.54 Hz, 1 H), 8.09 (d, J=2.54 Hz, 1 H), 8.10-8.12 (m, 1 H).
後処理
- temperatureat reflux
- filtrationThe orange-red solid was collected by filtration
- washwashed with water
- customdried in vacuo
- concentrationThe filtrate was concentrated
- dissolutionThe residue was dissolved in EtOAc
- washwashed with H2O, brine
- dry with materialdried over anhydrous Na2SO4
- customThe crude product was purified by silica gel flash chromatography
出典と根拠
- ORDレコード
- ord-51cc8f4f0ef6492a8badc422aa5f0f25
- 出典データセット
- uspto-grants-2009_11
- 特許番号
- US07615642B2
反応ノート
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