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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 1188495
ノート
印刷プレビュー

反応式

HRID 1188495 の反応式
[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]
参加物反応条件実験手順後処理出典と根拠反応ノート

参加物

5

反応物 3

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

生成物 1

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

試薬・触媒・溶媒 1

HCID 6228
Dimethylformamide
溶媒

反応条件

温度
90 °C

実験手順

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).

後処理

  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)

出典と根拠

ORDレコード
ord-33ed94f4cfba431e8ce7a4e244c65931
出典データセット
uspto-grants-2014_03
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08673948B2

反応ノート

読み込み中…

このページの内容参加物反応条件実験手順後処理出典と根拠反応ノート