Toluene → 3-Fluoro-4-phenylmethoxyaniline
반응식
C([O-])=O.[NH4+].[CH2:5]([O:12][C:13]1[CH:18]=[CH:17][C:16]([N+:19]([O-])=O)=[CH:15][C:14]=1[F:22])[C:6]1[CH:11]=[CH:10][CH:9]=[CH:8][CH:7]=1.C1(C)C=CC=CC=1>[Fe].O>[CH2:5]([O:12][C:13]1[CH:18]=[CH:17][C:16]([NH2:19])=[CH:15][C:14]=1[F:22])[C:6]1[CH:7]=[CH:8][CH:9]=[CH:10][CH:11]=1참가 물질
실험 절차
A mixture of iron powder (45.2 g, 0.809 g atoms), ammonium formate (53.6 g, 0.850 mol), 1-benzyloxy-2-fluoro-4-nitrobenzene (50.0 g, 0.200 mol), toluene (400 mL) and water (400 mL) was heated to reflux overnight. The mixture was filtered through Celite and washed with hot ethyl acetate. The combined organic layers were washed with water and brine, then dried over sodium sulfate and concentrated to afford 4-benzyloxy-3-fluoroaniline (44 g, 100%). 1H NMR (400 MHz, d6-DMSO): δ 7.43-7.26 (m, 5H), 6.90 (dd, 1H), 6.49 (dd, 1H), 6.34 (m, 1H), 4.99 (br s, 2H), 4.98 (s, 2H); 13C NMR (100 MHz, d6-DMSO): δ 171.1, 155.1, 152.7, 144.9, 138.0, 137.2, 129.6, 129.0, 128.5, 118.9, 110.0, 102.9, 72.5; IR (cm−1): 1510, 1454, 1277, 1215, 1126, 1007, 957, 843, 800, 789, 739, 694, 604; LC/MS (M+H=218).
후처리
- temperaturewas heated
- temperatureto reflux overnight
- filtrationThe mixture was filtered through Celite
- washwashed with hot ethyl acetate
- washThe combined organic layers were washed with water and brine
- dry with materialdried over sodium sulfate
- concentrationconcentrated
출처 및 근거
- ORD 기록
- ord-ae55e0b71f0f46a6be480e09ad3a05f7
- 출처 데이터셋
- uspto-grants-2013_07
- 특허 번호
- US08497284B2
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