Potassium Carbonate → Methyl 2-acetamido-3-hydroxybenzoate

HRID 1108697Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 1108697
[C:1]([NH:4][C:5]1[C:14]([O:15]C(=O)C)=[CH:13][CH:12]=[CH:11][C:6]=1[C:7]([O:9][CH3:10])=[O:8])(=[O:3])[CH3:2].C(=O)([O-])[O-].[K+].[K+]>CO>[C:1]([NH:4][C:5]1[C:14]([OH:15])=[CH:13][CH:12]=[CH:11][C:6]=1[C:7]([O:9][CH3:10])=[O:8])(=[O:3])[CH3:2]

Komponenten

4

Edukt 2

HCID 11430Potassium CarbonateHCID 22627220Methyl 2-acetamido-3-acetoxybenzoate

Produkt 1

HCID 22627296Methyl 2-acetamido-3-hydroxybenzoateAusbeute 84,5 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

To a solution of methyl 2-acetamido-3-acetoxybenzoate (1.72 g) in methanol (9 ml) was added powdered potassium carbonate (1.4 g), and the mixture was stirred for 20 minutes. The resulting solid was removed by filtration and washed with methanol. The filtrate was evaporated in vacuo, and the residue was acidified with 1N hydrochloric acid and extracted with ethyl acetate. The organic phase was washed with brine, dried over sodium sulfate and evaporated in vacuo. The residue was triturated with a mixture of isopropyl ether and hexane to give methyl 2-acetamido-3-hydroxybenzoate (1.21 g) as solid.

Aufarbeitung

  1. customThe resulting solid was removed by filtration
  2. washwashed with methanol
  3. customThe filtrate was evaporated in vacuo
  4. extractionextracted with ethyl acetate
  5. washThe organic phase was washed with brine
  6. dry with materialdried over sodium sulfate
  7. customevaporated in vacuo
  8. customThe residue was triturated with a mixture of isopropyl ether and hexane

Quellen und Nachweise

ORD-Eintrag
ord-225e37ea3c444009a4a3efc08272aa06
Quelldatensatz
uspto-grants-2000_05
Patentnummer
US06069156

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