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Cesium carbonate → 5-Bromo-4-chloro-2-ethyl-1-({5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-3-yl}methyl)-1H-benzimidazole

HRID 913568
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인쇄 미리보기

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HRID 913568 반응식
[Br:1][C:2]1[CH:12]=[CH:11][C:5]2[NH:6][C:7]([CH2:9][CH3:10])=[N:8][C:4]=2[C:3]=1[Cl:13].C([O-])([O-])=O.[Cs+].[Cs+].Cl[CH2:21][C:22]1[N:26]=[C:25]([C:27]2[CH:32]=[CH:31][CH:30]=[C:29]([C:33]([F:36])([F:35])[F:34])[CH:28]=2)[O:24][N:23]=1>CN(C=O)C>[Br:1][C:2]1[CH:12]=[CH:11][C:5]2[N:6]([CH2:21][C:22]3[N:26]=[C:25]([C:27]4[CH:32]=[CH:31][CH:30]=[C:29]([C:33]([F:36])([F:34])[F:35])[CH:28]=4)[O:24][N:23]=3)[C:7]([CH2:9][CH3:10])=[N:8][C:4]=2[C:3]=1[Cl:13]
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 10796Cesium carbonateHCID 27366223-(Chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazoleHCID 578001585-bromo-4-chloro-2-ethyl-1H-benzimidazole

생성물 1

HCID 578002445-Bromo-4-chloro-2-ethyl-1-({5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazol-3-yl}methyl)-1H-benzimidazole수율 138%

시약·촉매·용매 1

HCID 6228
Dimethylformamide
용매

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온도
90 °C

실험 절차

5-Bromo-4-chloro-2-ethyl-1H-benzimidazole (0.100 g, 0.385 mmol), Cs2CO3 (0.188 g, 0.578 mmol), and 3-(chloromethyl)-5-[3-(trifluoromethyl)phenyl]-1,2,4-oxadiazole (0.152 g, 0.578 mmol) were combined in DMF (10 mL) and heated to 90° C. for 30 min. The reaction mixture was partitioned between Et2O and water. The combined organic portions were washed with brine, dried (Na2SO4), filtered, and concentrated in vacuo. Purification (SiO2, EtOAc/hexanes) provided the title compound 0.258 g: MS (ESI) m/z 487 (M+1).

후처리

  1. customThe reaction mixture was partitioned between Et2O and water
  2. washThe combined organic portions were washed with brine
  3. dry with materialdried (Na2SO4)
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customPurification (SiO2, EtOAc/hexanes)

출처 및 근거

ORD 기록
ord-620e41e7cc9d4d12958ce37cd103320a
출처 데이터셋
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08026262B2

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