Reacción #2408

ord-fca1a49f76c14ce8bae2a93158f456ab

Ecuación de reacción

O
water
OCCOc1cc(Cl)ncn1
2-(6-chloropyrimidin-4-yloxy)ethanol
[N-]=[N+]=[N-].[Na+]
sodium azide
[N-]=[N+]=Nc1cc(OCCO)ncn1
2-(6-azidopyrimidin-4-yloxy)ethanol
Rendimiento 28.9%

Condiciones de reacción

Temperatura
70°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    TemperaturaAfter cooling
  2. 2
    Extracciónextracted with ethyl acetate
  3. 3
    SecadoThe ethyl acetate layer is dried
  4. 4
    Otroevaporated
  5. 5
    Otroto remove the solvent
  6. 6
    OtroThe residue is purified by silica gel column chromatography (solvent; hexane/ethyl acetate=1:1)

Procedimiento

To a solution of 2-(6-chloropyrimidin-4-yloxy)ethanol (5.61 g) in dimethylformamide (60 ml) is added sodium azide (4.18 g), and the mixture is stirred at 70° C. for 20 hours. After cooling, the reaction solution is treated with water, and extracted with ethyl acetate. The ethyl acetate layer is dried, and evaporated to remove the solvent. The residue is purified by silica gel column chromatography (solvent; hexane/ethyl acetate=1:1) to give 2-(6-azidopyrimidin-4-yloxy)ethanol (1.68 g).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05728706uspto-grants-1998_03