Water → Ethyl 4-azidobutanoate

HRID 396684Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 396684
Br[CH2:2][CH2:3][CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6].[N-:10]=[N+:11]=[N-:12].[Na+].O>CO>[N:10]([CH2:2][CH2:3][CH2:4][C:5]([O:7][CH2:8][CH3:9])=[O:6])=[N+:11]=[N-:12]

Komponenten

5

Edukt 3

HCID 962WaterHCID 33557Sodium AzideHCID 76300Ethyl 4-bromobutyrate

Produkt 1

HCID 12382175Ethyl 4-azidobutanoateAusbeute 98,6 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887MethanolLösungsmittel

Versuchsvorschrift

A solution of ethyl 4-bromobutyrate (10.0 g, 51.3 mmol), NaN3 (6.66 g, 102 mmol) and 25 ml of water in 75 ml of MeOH was refluxed for 3.5 hrs. The MeOH was removed in vacuo and residue was partitioned between CHCl3 (200 ml) and water (50 ml). The organic layer was separated and washed with water. After drying and evaporation of solvent, ethyl 4-azidobutyrate (7.94 g, 98.6%) was obtained as a colorless oil.

Aufarbeitung

  1. customThe MeOH was removed in vacuo and residue
  2. customwas partitioned between CHCl3 (200 ml) and water (50 ml)
  3. customThe organic layer was separated
  4. washwashed with water
  5. customAfter drying
  6. customevaporation of solvent

Quellen und Nachweise

ORD-Eintrag
ord-92b6b338837d48d2a25bc7d004562592
Quelldatensatz
uspto-grants-2003_08
Patentnummer
US06608086B2

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