Reacción #1447098

ord-eeed7cb84df54cc28056c5c5beb05544

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    TemperaturaThe solution is heated
  2. 2
    Temperaturaat reflux temperature for 8 h
  3. 3
    Concentraciónconcentrated under reduced pressure
  4. 4
    Otroto remove most of the alcohol
  5. 5
    workup.ADDITIONAqueous NaHCO3 solution is added to the rest
  6. 6
    Extracciónthe resulting mixture is extracted twice with ethyl acetate
  7. 7
    LavadoThe combined organic extracts are washed with brine
  8. 8
    Secadodried (Na2SO4)
  9. 9
    Concentraciónconcentrated

Procedimiento

Half-concentrated hydrochloric acid (5 mL) is added to a solution of N-[4-bromo-2-(4-ethyl-benzyl)-5-methoxy-phenyl]-acetamide (2.8 g) in isopropanol (20 mL). The solution is heated at reflux temperature for 8 h and then concentrated under reduced pressure to remove most of the alcohol. Aqueous NaHCO3 solution is added to the rest and the resulting mixture is extracted twice with ethyl acetate. The combined organic extracts are washed with brine, dried (Na2SO4) and concentrated to give the title compound.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07879806B2uspto-grants-2011_02