4-(Methylthio)benzaldehyde → [4-(Methylsulfanyl)phenyl]methanol

HRID 617882

反応式

HRID 617882 の反応式
[BH4-].[Na+].[CH3:3][S:4][C:5]1[CH:12]=[CH:11][C:8]([CH:9]=[O:10])=[CH:7][CH:6]=1>C(O)(C)C>[CH3:3][S:4][C:5]1[CH:12]=[CH:11][C:8]([CH2:9][OH:10])=[CH:7][CH:6]=1

参加物

4

反応物 2

HCID 769854-(Methylthio)benzaldehydeHCID 4311764Sodium borohydride

生成物 1

HCID 592968[4-(Methylsulfanyl)phenyl]methanol収率 98.7%

試薬・触媒・溶媒 1

HCID 3776Isopropanol溶媒

実験手順

Sodium borohydride (3.78 g) was added to isopropyl alcohol (50 ml) and the mixture was stirred under ice-cooling. Thereto was dropwise added 4-(methylthio)benzaldehyde (15 g) and the mixture was stirred at room temperature for 30 minutes. The solvent was distilled away and water was added to the residue. The mixture was extracted with ethyl acetate. The organic layer was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was distilled away and the residue obtained was recrystallized from hexane-ethyl acetate to give the subject compound (15 g) as white crystals. melting point=41-43° C.

後処理

  1. temperaturecooling
  2. stirringthe mixture was stirred at room temperature for 30 minutes
  3. distillationThe solvent was distilled away
  4. additionwater was added to the residue
  5. extractionThe mixture was extracted with ethyl acetate
  6. washThe organic layer was washed with saturated brine
  7. dry with materialdried over anhydrous sodium sulfate
  8. distillationThe solvent was distilled away
  9. customthe residue obtained
  10. customwas recrystallized from hexane-ethyl acetate

出典と根拠

ORDレコード
ord-1697a2ad598f4cba80a088b5b2cb8c02
出典データセット
uspto-grants-1999_09
特許番号
US05952316

関連ノート

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