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Cyanogen Bromide → 6-[5-[2-(3-fluorophenyl)ethyl]-1,3,4-oxadiazol-2-yl]-1-(4-methoxyphenyl)-1H-benzimidazol-2-amine

HRID 452743
ノート
印刷プレビュー

反応式

HRID 452743 の反応式
[F:1][C:2]1[CH:3]=[C:4]([CH2:8][CH2:9][C:10]2[O:14][C:13]([C:15]3[CH:16]=[C:17]([NH:22][C:23]4[CH:28]=[CH:27][C:26]([O:29][CH3:30])=[CH:25][CH:24]=4)[C:18]([NH2:21])=[CH:19][CH:20]=3)=[N:12][N:11]=2)[CH:5]=[CH:6][CH:7]=1.[N:31]#[C:32]Br.C(=O)([O-])O.[Na+]>C(O)C>[F:1][C:2]1[CH:3]=[C:4]([CH2:8][CH2:9][C:10]2[O:14][C:13]([C:15]3[CH:20]=[CH:19][C:18]4[N:21]=[C:32]([NH2:31])[N:22]([C:23]5[CH:24]=[CH:25][C:26]([O:29][CH3:30])=[CH:27][CH:28]=5)[C:17]=4[CH:16]=3)=[N:12][N:11]=2)[CH:5]=[CH:6][CH:7]=1
参加物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 10476Cyanogen BromideHCID 516892Sodium BicarbonateHCID 686641364-[5-[2-(3-fluorophenyl)ethyl]-1,3,4-oxadiazol-2-yl]-N2-(4-methoxyphenyl)benzene-1,2-diamine

生成物 1

HCID 686633666-[5-[2-(3-fluorophenyl)ethyl]-1,3,4-oxadiazol-2-yl]-1-(4-methoxyphenyl)-1H-benzimidazol-2-amine収率 62%

試薬・触媒・溶媒 1

HCID 702Ethanol
溶媒

実験手順

A solution of 4-[5-[2-(3-fluorophenyl)ethyl]-1,3,4-oxadiazol-2-yl]-N2-(4-methoxyphenyl)benzene-1,2-diamine (0.20 g, 0.49 mmol) and cyanogen bromide (0.11 g, 1.03 mmol) in ethanol (5 mL) was stirred at 60° C. for 4 hr. After cooling, saturated aqueous sodium hydrogen carbonate solution was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was purified by basic silica gel column chromatography (hexane/ethyl acetate=1/2-1/3) to give the title compound (0.13 g, yield 62%) as colorless crystals.

後処理

  1. temperatureAfter cooling
  2. extractionthe mixture was extracted with ethyl acetate
  3. washThe organic layer was washed with saturated brine
  4. dry with materialdried over anhydrous magnesium sulfate
  5. concentrationconcentrated under reduced pressure
  6. customThe residue was purified by basic silica gel column chromatography (hexane/ethyl acetate=1/2-1/3)

出典と根拠

ORDレコード
ord-a4231a410a4b4b0a9ff4626bfda51ce3
出典データセット
uspto-grants-2013_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08492378B2

反応ノート

読み込み中…

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