2-[(2,3-Difluoro-6-nitrophenyl)amino]ethanol → 2-[(6-Amino-2,3-difluorophenyl)amino]ethanol
反応式
[F:1][C:2]1[C:7]([F:8])=[CH:6][CH:5]=[C:4]([N+:9]([O-])=O)[C:3]=1[NH:12][CH2:13][CH2:14][OH:15].[H][H]>C(OCC)(=O)C.C(O)C.[Pd]>[NH2:9][C:4]1[C:3]([NH:12][CH2:13][CH2:14][OH:15])=[C:2]([F:1])[C:7]([F:8])=[CH:6][CH:5]=1参加物
6
実験手順
To a solution of 2-[(2,3-difluoro-6-nitrophenyl)amino]ethanol (3.8 g, 17.4 mmol) in 70 ml of ethyl acetate and 30 ml of ethanol is added 10% Pd/C (380 mg). The reaction is shaken under 50 PSI of hydrogen for 3 hours. The pressure is periodically adjusted to 50 PSI. The reaction is filtered through celite, rinsed with ethanol and concentrated. The resulting material is used without further purification in the next step. 1H NMR (400 MHz, CDCl3) δ ppm 3.17-3.27 (m, 2H) 3.68-3.78 (m, 2H) 6.38 (ddd, J=8.89, 4.69, 2.05 Hz, 1H) 6.61-6.70 (m, 1H)
後処理
- filtrationThe reaction is filtered through celite
- washrinsed with ethanol
- concentrationconcentrated
- customThe resulting material is used without further purification in the next step
出典と根拠
- ORDレコード
- ord-fa546a3f8f1f475981257399b2a2d403
- 出典データセット
- uspto-grants-2011_03
- 特許番号
- US07906654B2
反応ノート
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