Potassium Iodide → 1-(2-Bromo-benzyl)-5,6-dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzoimidazole

HRID 230445

반응식

HRID 230445 반응식
[H-].[Na+].Cl[C:4]1[C:12]2N=C(CC(F)(F)F)N(Cl)[C:8]=2[CH:7]=[CH:6][CH:5]=1.[Cl:19][C:20]1[CH:21]=[C:22]2[C:26](=[CH:27][C:28]=1[Cl:29])[NH:25][C:24]([CH2:30][C:31]([F:34])([F:33])[F:32])=C2.[Br:35]CC1C=CC(C(OCC)=O)=CC=1.[I-].[K+].[NH4+].[Cl-].C[N:53]([CH:55]=O)C>>[Br:35][C:4]1[CH:5]=[CH:6][CH:7]=[CH:8][C:12]=1[CH2:55][N:53]1[C:22]2[CH:21]=[C:20]([Cl:19])[C:28]([Cl:29])=[CH:27][C:26]=2[N:25]=[C:24]1[CH2:30][C:31]([F:32])([F:33])[F:34]

참가 물질

8

반응 조건

온도
0 °C

실험 절차

NaH (60%) 120 mg, 3 mmol) was added into a solution of dichloro-2-(2,2,2-trifluoro-ethyl)-1H-benzoimidazole. 5,6-Dichloro-2-(2,2,2-trifluoro-ethyl)-1H-indole (538 mg, 2 mmol) in DMF (5 ml) at 0° C. The resulting mixture was stirred at 0° C. for half hour. Ethyl 4-(bromomethyl)-benzoate (729.3 mg, 3 mmol) and potassium iodide (498 mg, 3 mmol) were then added to the reaction mixture at 0° C. The reaction temperature was raised to 25° C. and then the reaction mixture was stirred for 18 hours. NH4Cl (aq.) was added and extracted with EtOAc. The organic layer was washed with brine, then dried over anhydrous MgSO4. The solvent was distilled out under reduced pressure. Column chromatography (silica gel, EtOAc/hexanes (0% to 60%) yielded the title compound as a white solid.

후처리

  1. customat 0° C
  2. temperatureThe reaction temperature was raised to 25° C.
  3. stirringthe reaction mixture was stirred for 18 hours
  4. extractionextracted with EtOAc
  5. washThe organic layer was washed with brine
  6. dry with materialdried over anhydrous MgSO4
  7. distillationThe solvent was distilled out under reduced pressure

출처 및 근거

ORD 기록
ord-2416a624f1ad42318eada988864f5255
출처 데이터셋
uspto-grants-2009_07
특허 번호
US07566733B2

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