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

HRID 1251386Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1251386
[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 concentrated 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
  6. customThe residue obtained
  7. extractionwas extracted with chloroform
  8. washwashed well with water
  9. customIt was dried
  10. concentrationconcentrated The product

Quellen und Nachweise

ORD-Eintrag
ord-66fac0e729bd44038dc5bd0e8a364504
Quelldatensatz
uspto-grants-2002_01
Patentnummer
US06342508B1

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