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2,4-Dichloroaniline → Isopropyl {4-chloro-2-[(2,4-dichlorophenyl)amino]-7-(1-ethylpropyl)-1H-benzimidazol-1-yl}acetate

HRID 1628394
ノート
印刷プレビュー

反応式

HRID 1628394 の反応式
Cl[C:2]1[N:6]([CH2:7][C:8]([O:10][CH:11]([CH3:13])[CH3:12])=[O:9])[C:5]2[C:14]([CH:19]([CH2:22][CH3:23])[CH2:20][CH3:21])=[CH:15][CH:16]=[C:17]([Cl:18])[C:4]=2[N:3]=1.[Cl:24][C:25]1[CH:31]=[C:30]([Cl:32])[CH:29]=[CH:28][C:26]=1[NH2:27].C(=O)([O-])O.[Na+]>CN1CCCC1=O>[Cl:18][C:17]1[C:4]2[N:3]=[C:2]([NH:27][C:26]3[CH:28]=[CH:29][C:30]([Cl:32])=[CH:31][C:25]=3[Cl:24])[N:6]([CH2:7][C:8]([O:10][CH:11]([CH3:13])[CH3:12])=[O:9])[C:5]=2[C:14]([CH:19]([CH2:22][CH3:23])[CH2:20][CH3:21])=[CH:15][CH:16]=1
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 111232,4-DichloroanilineHCID 516892Sodium BicarbonateHCID 86632857Isopropyl [2,4-dichloro-7-(1-ethylpropyl)-1H-benzimidazol-1-yl]acetate

生成物 1

HCID 86632862Isopropyl {4-chloro-2-[(2,4-dichlorophenyl)amino]-7-(1-ethylpropyl)-1H-benzimidazol-1-yl}acetate収率 21%

試薬・触媒・溶媒 1

HCID 13387N-methyl-2-pyrrolidone
溶媒

反応条件

温度
100 °C

実験手順

A mixture of isopropyl [2,4-dichloro-7-(1-ethylpropyl)-1H-benzimidazol-1-yl]acetate (Reference Example 10; 1.96 g, 5.49 mmol), 2,4-dichloroaniline (2.67 g, 16.5 mmol) and N-methyl-2-pyrrolidinone (1.5 mL) was stirred at 100° C. for 15 hr. After cooling, the reaction mixture was neutralized with saturated aqueous sodium hydrogen carbonate and extracted with ethyl acetate. The organic layer was washed with water and brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography eluting with a 3-15% ethyl acetate/n-hexane gradient mixture to give the title compound (546 mg, 1.13 mmol, 21%) as an oil.

後処理

  1. temperatureAfter cooling
  2. extractionextracted with ethyl acetate
  3. washThe organic layer was washed with water and brine
  4. dry with materialdried over anhydrous sodium sulfate
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by silica gel column chromatography
  7. washeluting with a 3-15% ethyl acetate/n-hexane gradient mixture

出典と根拠

ORDレコード
ord-bc1f7f3ea7a54943a396a513c19472c6
出典データセット
uspto-grants-2014_07
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08785460B2

反応ノート

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