Reacción #362536

ord-a7eae7849ca74017907dd78b268f0587

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    FiltraciónAfter hydrogenation for 30 h at 3 ato the catalyst was filtered off
  2. 2
    Otrothe acetic acid was evaporated in vacuo and water (50 ml)
  3. 3
    workup.ADDITIONwas added
  4. 4
    Extracciónextracted with ethyl acetate (2×50 ml)
  5. 5
    LavadoThe combined organic phases were successively washed with diluted sodium hydroxide (50 ml)
  6. 6
    Lavadowashed with brine
  7. 7
    Secadodried (Na2SO4)
  8. 8
    OtroEvaporation of the solvent

Procedimiento

6-Chloro-3-(4-fluorophenyl)-1-(4-pyridyl)-lH-indole 2e (1.8 g) was dissolved in acetic acid (100 ml) and PtO2 (0.2 g) was added. After hydrogenation for 30 h at 3 ato the catalyst was filtered off, the acetic acid was evaporated in vacuo and water (50 ml) was added. The acidic solution was made alkaline (pH>9) with concentrated sodium hydroxide and extracted with ethyl acetate (2×50 ml). The combined organic phases were successively washed with diluted sodium hydroxide (50 ml), washed with brine, and dried (Na2SO4). Evaporation of the solvent gave 1.5 g of the title compound as an oil.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05393761uspto-grants-1995_02