Sodium Hydroxide → 3-(4-Phthalimidobutylthio)pyridine

HRID 274629

反応式

HRID 274629 の反応式
CN(N[C:5]([S:7][C:8]1[CH:9]=[N:10][CH:11]=[CH:12][CH:13]=1)=O)C.[OH-].[Na+].BrC[CH2:18][CH2:19][CH2:20][N:21]1[C:25](=[O:26])[C:24]2=[CH:27][CH:28]=[CH:29][CH:30]=[C:23]2[C:22]1=[O:31]>CO>[C:22]1(=[O:31])[N:21]([CH2:20][CH2:19][CH2:18][CH2:5][S:7][C:8]2[CH:9]=[N:10][CH:11]=[CH:12][CH:13]=2)[C:25](=[O:26])[C:24]2=[CH:27][CH:28]=[CH:29][CH:30]=[C:23]12

参加物

5

反応物 3

HCID 14798Sodium HydroxideHCID 93575N-(4-Bromobutyl)phthalimideHCID 190790823-Dimethylaminocarbamoylthiopyridine

生成物 1

HCID 190791033-(4-Phthalimidobutylthio)pyridine収率 4.5%

試薬・触媒・溶媒 1

HCID 887Methanol溶媒

実験手順

To a solution of 3.64 g (20 mmol) of 3-dimethylaminocarbamoylthiopyridine in 100 ml of methanol was added 1.6 g (40 mmol) of sodium hydroxide. The mixture was heated and refluxed for 3 hours under nitrogen atmosphere. After cooling, 5.64 g (20 mmol) of N-(4-bromobutyl)phthalimide was added. The mixture was heated and refluxed for 2.5 hours. The solvent was distilled off and chloroform was added to the residue. The mixture was washed with water and dried over anhydrous magnesium sulfate. The solvent was distilled off and the residue was purified by column chromatography (eluent: ethyl acetate/n-hexane=1:1) to obtain 280 mg of the desired compound (4.5%, colorless oil).

後処理

  1. temperatureThe mixture was heated
  2. temperaturerefluxed for 3 hours under nitrogen atmosphere
  3. temperatureAfter cooling
  4. temperatureThe mixture was heated
  5. temperaturerefluxed for 2.5 hours
  6. distillationThe solvent was distilled off
  7. additionchloroform was added to the residue
  8. washThe mixture was washed with water
  9. dry with materialdried over anhydrous magnesium sulfate
  10. distillationThe solvent was distilled off
  11. customthe residue was purified by column chromatography (eluent: ethyl acetate/n-hexane=1:1)

出典と根拠

ORDレコード
ord-3b4de75034574209ad0146ba4550d376
出典データセット
uspto-grants-1995_02
特許番号
US05389658

関連ノート

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