HCID 44156374、化合物 → 9-Chloro-1-(2,4-dichlorophenyl)-6-[1-(1H-imidazol-1-yl) propyl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole

HRID 1399055ノート

反応式

HRID 1399055 の反応式
[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23](O)[CH2:24][CH3:25])=[CH:4][CH:3]=1>ClCCl>[Cl:1][C:2]1[C:10]2[N:9]=[C:8]3[N:11]([C:15]4[CH:20]=[CH:19][C:18]([Cl:21])=[CH:17][C:16]=4[Cl:22])[CH2:12][CH2:13][CH2:14][N:7]3[C:6]=2[C:5]([CH:23]([N:7]2[CH:6]=[CH:10][N:9]=[CH:8]2)[CH2:24][CH3:25])=[CH:4][CH:3]=1

参加物

3

反応物 1

HCID 44156374HCID 44156374、化合物

生成物 1

HCID 577857799-Chloro-1-(2,4-dichlorophenyl)-6-[1-(1H-imidazol-1-yl) propyl]-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazole収率 187.7%

試薬・触媒・溶媒 1

HCID 6344Dichloromethane溶媒

反応条件

温度
50 °C

実験手順

A mixture of 1-[9-chloro-1-(2,4-dichlorophenyl)-1,2,3,4-tetrahydropyrimido[1,2-a]benzimidazol-6-yl]propan-1-ol (150 mg, 0.326 mmol) and N,N′-carbonyldiimidazole (119 mg, 0.734 mmol) in dichloromethane (2.0 mL) was stirred at 50° C. for 22 hr. The mixture was concentrated in vacuo, diluted with 1N hydrochloric acid and extracted with ethyl acetate. The combined organic layer was washed with brine, dried over anhydrous magnesium sulfate, filtered, and concentrated in vacuo. The residue was purified by flash column chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture. The filtrate was concentrated in vacuo to give the solid, which was recrystallized from ethyl acetate/n-hexane to give the title compound as a colorless crystal (141 mg, 0.306 mmol, 94%).

後処理

  1. concentrationThe mixture was concentrated in vacuo
  2. additiondiluted with 1N hydrochloric acid
  3. extractionextracted with ethyl acetate
  4. washThe combined organic layer was washed with brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated in vacuo
  8. customThe residue was purified by flash column chromatography on silica gel eluting with a 50-100% ethyl acetate/n-hexane gradient mixture
  9. concentrationThe filtrate was concentrated in vacuo
  10. customto give the solid, which
  11. customwas recrystallized from ethyl acetate/n-hexane

出典と根拠

ORDレコード
ord-4dfa7afbacbb4c1d919b72db5076fcf6
出典データセット
uspto-grants-2014_12
特許番号
US08901141B2

反応ノート

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