Sodium Carbonate → 3-[(2-Acetylthiomethyl-3-phenylpropionyl)amino]-5-ethylbenzoic acid

HRID 248690

Reaktionsgleichung

Reaktionsgleichung von HRID 248690
[NH2:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([CH2:11][CH3:12])[CH:10]=1)[C:5]([OH:7])=[O:6].C(=O)([O-])[O-].[Na+].[Na+].[C:19]([S:22][CH2:23][CH:24]([CH2:28][C:29]1[CH:34]=[CH:33][CH:32]=[CH:31][CH:30]=1)[C:25](Cl)=[O:26])(=[O:21])[CH3:20]>O1CCCC1>[C:19]([S:22][CH2:23][CH:24]([CH2:28][C:29]1[CH:30]=[CH:31][CH:32]=[CH:33][CH:34]=1)[C:25]([NH:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([CH2:11][CH3:12])[CH:10]=1)[C:5]([OH:7])=[O:6])=[O:26])(=[O:21])[CH3:20]

Komponenten

5

Edukt 3

HCID 10340Sodium CarbonateHCID 103777342-Acetylthiomethyl-3-phenyl-propionyl chlorideHCID 197639303-Amino-5-ethylbenzoic acid

Produkt 1

HCID 156702113-[(2-Acetylthiomethyl-3-phenylpropionyl)amino]-5-ethylbenzoic acidAusbeute 62,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 8028TetrahydrofuranLösungsmittel2×

Versuchsvorschrift

3-Amino-5-ethylbenzoic acid (2.1 g) is dissolved in a 33% aqueous solution of tetrahydrofuran (30 ml) containing sodium carbonate (1.3 g), and to the mixture is added dropwise a solution of 2-acetylthiomethyl-3-phenylpropionyl chloride (3.0 g) in tetrahydrofuran (20 ml) with stirring under ice cooling, and the mixture is stirred at room temperature for one hour. Tetrahydrofuran is distilled off under reduced pressure, and the residue is extracted with ethyl acetate (100 ml). The extract is washed with saturated aqueous sodium chloride solution and dried over anhydrous sodium sulfate, and then ethyl acetate is distilled off under reduced pressure. The residue is dissolved in methanol and purified by a medium pressure column chromatography with CHP-20P (eluant, water-methanol). The fractions containing the desired compound are collected and concentrated into dryness under reduced pressure to give the title compound (2.8 g).

Aufarbeitung

  1. stirringthe mixture is stirred at room temperature for one hour
  2. distillationTetrahydrofuran is distilled off under reduced pressure
  3. extractionthe residue is extracted with ethyl acetate (100 ml)
  4. washThe extract is washed with saturated aqueous sodium chloride solution
  5. dry with materialdried over anhydrous sodium sulfate
  6. distillationethyl acetate is distilled off under reduced pressure
  7. dissolutionThe residue is dissolved in methanol
  8. custompurified by a medium pressure column chromatography with CHP-20P (eluant, water-methanol)
  9. additionThe fractions containing the desired compound
  10. customare collected
  11. concentrationconcentrated into dryness under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-6bf28a30b03f433c9f01eb01f6f06977
Quelldatensatz
uspto-grants-1993_05
Patentnummer
US05210266

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