Reacción #1375837

ord-8811b95d01a945618ba291218b48357b

Condiciones de reacción

Temperatura
135°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    TemperaturaThe tube was then cooled
  2. 2
    Otrothe contents were partitioned between 250 mL ethyl acetate and 200 mL brine
  3. 3
    OtroThe organic layer was separated
  4. 4
    Otrodried over anhyd
  5. 5
    Concentraciónsodium sulfate, and concentrated at reduced pressure
  6. 6
    OtroThe resulting oil was chromatographed on silica gel

Procedimiento

N-(4-Chlorophenyl)alanine ethyl ester (4.5 g, 0.02 mol), n-butyl iodide (3.6 g, 0.02 mol) and 2,6-lutidine (2.5 g, 0.025 mol) were sealed in a glass tube and the contents were heated at 135° C. for 48 h. The tube was then cooled, and the contents were partitioned between 250 mL ethyl acetate and 200 mL brine. The organic layer was separated, dried over anhyd. sodium sulfate, and concentrated at reduced pressure. The resulting oil was chromatographed on silica gel using heptane:THF (4:1) as the eluant. The ester was isolated as a colorless oil (2.5 g, 45%).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05747236uspto-grants-1998_05