Reacción #668155

ord-366b1591983a4f66bf2b0db3de78ad83

Condiciones de reacción

Temperatura
90°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturato cool to ambient temperature
  2. 2
    Filtraciónthe mixture filtered
  3. 3
    workup.DISSOLUTIONThe filtrate was dissolved in water (750 ml)
  4. 4
    Extracciónthe aqueous mixture was extracted with ethyl acetate (5×150 ml)
  5. 5
    Lavadowashed with water (3×100 mls), brine (200 mls)
  6. 6
    Secadodried (MgSO4)
  7. 7
    Otroevaporated

Procedimiento

Bromoethylmethyl ether (105.7 g) was added to a stirred suspension of hydroquinone monobenzylether and unhydrous potassium carbonate (84.5 g) in N,N-dimethylformamide (250 ml). The reaction mixture was heated at 90° C. for 18 hours. The reaction mixture was allowed to cool to ambient temperature and the mixture filtered. The filtrate was dissolved in water (750 ml) and the aqueous mixture was extracted with ethyl acetate (5×150 ml). The ethyl acetate extracts were combined, washed with water (3×100 mls), brine (200 mls), dried (MgSO4) and evaporated to give 1-(benzyloxy)-4-(2-methoxyethoxy)benzene (102.4 g) as a solid; NMR: 3.3(3H,s), 3.61(2H,m), 4.0(2H,m), 5.02(2H,s), 6.9(4H,m) and 7.4(5H,m) and m/z 259(M+H).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05919793uspto-grants-1999_07