Acetone → Ethyl 2-[(4-ethoxyphenyl)sulfanyl]propanoate

HRID 2305844Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 2305844
[CH2:1]([O:3][C:4](=[O:15])[CH:5]([S:7][C:8]1[CH:13]=[CH:12][C:11]([OH:14])=[CH:10][CH:9]=1)[CH3:6])[CH3:2].C([O-])([O-])=O.[K+].[K+].[CH3:22][C:23](C)=O>>[CH2:1]([O:3][C:4](=[O:15])[CH:5]([S:7][C:8]1[CH:9]=[CH:10][C:11]([O:14][CH2:22][CH3:23])=[CH:12][CH:13]=1)[CH3:6])[CH3:2]

Komponenten

4

Versuchsvorschrift

To stirred solution of 2-(4-hydroxy-phenylsulfanyl)-propionic acid ethyl ester (11.3 g, 50 mmol), and K2CO3 (50 g, excess) in acetone (300 ml) ethyl iodide (20 ml, excess) was added and refluxed for 8 hrs. At the end, reaction mixture was filtered and concentrated The residue obtained was extracted with chloroform and washed well with water. It was dried and concentrared. The product, 2-(4-ethoxy-phenylsulfanyl)-propionic acid ethyl ester was isolated as colorless oil. Yield: 12.0 g, 98%; MS: 255 (M+H).

Aufarbeitung

  1. additionwas added
  2. temperaturerefluxed for 8 hrs
  3. customAt the end, reaction mixture
  4. filtrationwas filtered
  5. concentrationconcentrated The residue
  6. customobtained
  7. extractionwas extracted with chloroform
  8. washwashed well with water
  9. customIt was dried

Quellen und Nachweise

ORD-Eintrag
ord-1e76b96203e84a31b1006861a6b65d5a
Quelldatensatz
uspto-grants-2002_08
Patentnummer
US06441023B1

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