Imidazole → 2-(4-Hydroxy-phenyl)-7-imidazol-1-ylmethyl-benzofuran-5-ol

HRID 1794476노트

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HRID 1794476 반응식
Br[CH2:2][C:3]1[C:11]2[O:10][C:9]([C:12]3[CH:17]=[CH:16][C:15]([OH:18])=[CH:14][CH:13]=3)=[CH:8][C:7]=2[CH:6]=[C:5]([OH:19])[CH:4]=1.[NH:20]1[CH:24]=[CH:23][N:22]=[CH:21]1.O>CN(C=O)C>[OH:18][C:15]1[CH:16]=[CH:17][C:12]([C:9]2[O:10][C:11]3[C:3]([CH2:2][N:20]4[CH:24]=[CH:23][N:22]=[CH:21]4)=[CH:4][C:5]([OH:19])=[CH:6][C:7]=3[CH:8]=2)=[CH:13][CH:14]=1

참가 물질

5

반응물 3

HCID 795ImidazoleHCID 962WaterHCID 10171939HCID 10171939, 화합물

생성물 1

HCID 101496022-(4-Hydroxy-phenyl)-7-imidazol-1-ylmethyl-benzofuran-5-ol수율 89.6%

시약·촉매·용매 1

HCID 6228Dimethylformamide용매

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온도
60 °C

실험 절차

To a solution of benzyl bromide 4 (0.070 g, 0.215 mmole) in 10 mL DMF was added imidazole (0.030 g, 0.437 mmole). After stirring at 60° C. for 3 hours, the reaction mixture was poured into water and extracted with ethyl acetate. The combined organic phases were washed with saturated sodium bicarbonate, water, brine, and dried with magnesium sulfate. The organic phases were concentrated and the residue was loaded on to silica gel and chromatographed with silica gel (hexanes:ethyl acetate, 9:1) to afford 0.059 g (88%) of imidazole 16 as a light tan solid: Mp=269–271° C.; 1H NMR (DMSO-d6) δ 9.88 (s, 1 H), 9.24 (s, 1 H), 7.88 (s, 1 H), 7.72 (d, 2 H, J=8.6 Hz), 7.26 (s, 1 H), 7.04 (s, 1 H), 6.93 (s, 1 H), 6.88 (d, 2 H, J=8.7 Hz), 6.83 (d, 1 H, J=2.3 Hz), 6.50 (d, 1 H, J=2.3 Hz), 5.46 (s, 2 H); MS 305 (M−H)−

후처리

  1. extractionextracted with ethyl acetate
  2. washThe combined organic phases were washed with saturated sodium bicarbonate, water, brine
  3. dry with materialdried with magnesium sulfate
  4. concentrationThe organic phases were concentrated
  5. customchromatographed with silica gel (hexanes:ethyl acetate, 9:1)

출처 및 근거

ORD 기록
ord-294958d3c0bc4d60af6c9fef38574e35
출처 데이터셋
uspto-grants-2006_04
특허 번호
US07022733B2

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