Sodium Hydroxide → 4-Ethoxy-3,5-dimethyl-2-pyridylmethanol

HRID 703172Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 703172
C([O:4][CH2:5][C:6]1[C:11]([CH3:12])=[C:10]([O:13][CH2:14][CH3:15])[C:9]([CH3:16])=[CH:8][N:7]=1)(=O)C.[OH-].[Na+]>C(O)C>[CH2:14]([O:13][C:10]1[C:9]([CH3:16])=[CH:8][N:7]=[C:6]([CH2:5][OH:4])[C:11]=1[CH3:12])[CH3:15]

Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 22151469(4-Ethoxy-3,5-dimethyl-2-pyridyl)methyl acetate

Produkt 1

HCID 199637424-Ethoxy-3,5-dimethyl-2-pyridylmethanol

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

32.9 g of (4-ethoxy-3,5-dimethyl-2-pyridyl)methyl acetate were dissolved in 190 ml of ethanol. 95 ml of 3N sodium hydroxide solution were then added dropwise thereto at 0° and the mixture was stirred at room temperature for a further 3 hours. The ethanol was subsequently removed in vacuo and the residual aqueous solution was extracted three times with 200 ml of methylene chloride. The organic extracts were dried over sodium sulfate and evaporated in vacuo. The residue crystallized from petroleum ether and there was obtained 4-ethoxy-3,5-dimethyl-2-pyridylmethanol of melting point 58-59° .

Aufarbeitung

  1. customThe ethanol was subsequently removed in vacuo
  2. extractionthe residual aqueous solution was extracted three times with 200 ml of methylene chloride
  3. dry with materialThe organic extracts were dried over sodium sulfate
  4. customevaporated in vacuo
  5. customThe residue crystallized from petroleum ether

Quellen und Nachweise

ORD-Eintrag
ord-ef6d1dc9131f4033be5a48cc3ab03cb3
Quelldatensatz
uspto-grants-1991_01
Patentnummer
US04981861

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