Morpholine → (3-Bromo-5-nitrophenyl)(morpholino)methanone

HRID 530385

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HRID 530385 반응식
CN(C(ON1N=NC2C=CC=NC1=2)=[N+](C)C)C.F[P-](F)(F)(F)(F)F.[NH:25]1[CH2:30][CH2:29][O:28][CH2:27][CH2:26]1.C(N(C(C)C)CC)(C)C.[Br:40][C:41]1[CH:42]=[C:43]([CH:47]=[C:48]([N+:50]([O-:52])=[O:51])[CH:49]=1)[C:44](O)=[O:45]>CN(C=O)C.C(OCC)(=O)C>[Br:40][C:41]1[CH:42]=[C:43]([C:44]([N:25]2[CH2:30][CH2:29][O:28][CH2:27][CH2:26]2)=[O:45])[CH:47]=[C:48]([N+:50]([O-:52])=[O:51])[CH:49]=1

참가 물질

7

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온도
0 °C

실험 절차

HATU (927 mg, 2.44 mmol), morpholine (0.212 mL, 2.44 mmol), and diisopropylethylamine (0.532 mL, 3.05 mmol) were added sequentially to a solution of 3-bromo-5-nitrobenzoic acid (500 mg, 2.03 mmol) in DMF (10 mL) at 0° C. The reaction mixture was stirred for 2 hours at 0° C., then the mixture was diluted with ethyl acetate (50 mL) and washed with saturated aqueous NaHCO3 (50 mL) followed by 1:1 water: brine (2×30 mL). The organic layers were dried over sodium sulfate, filtered, and concentrated in vacuo. The residue was purified by silica gel column chromatography (ethyl acetate/hexanes) provided (3-bromo-5-nitrophenyl)(morpholin-4-yl)methanone as a white solid. 1H NMR (400 MHz, CDCl3) δ 8.43 (t, J=1.9 Hz, 1H), 8.28-8.12 (m, 1H), 7.89 (t, J=1.5 Hz, 1H), 3.74 (br m, 8H).

후처리

  1. washwashed with saturated aqueous NaHCO3 (50 mL)
  2. dry with materialThe organic layers were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated in vacuo
  5. customThe residue was purified by silica gel column chromatography (ethyl acetate/hexanes)

출처 및 근거

ORD 기록
ord-64e94d6931614bcf9cb8ee22158a0fc6
출처 데이터셋
uspto-grants-2016_05
특허 번호
US09353066B2

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