Reacción #1755

ord-d5a8195f23794884af3a23a8c8f6148d

Condiciones de reacción

Temperatura
50°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Extracciónthe mixture is extracted with methylene chloride
  2. 2
    OtroThe organic phase is dried
  3. 3
    Otroevaporated down in vacuo
  4. 4
    Otrothe residue remaining is purified by column chromatography (aluminium oxide basic, activity stage III, ICN; petroleum ether/ethyl acetate=15:1)

Procedimiento

A solution of 1 g (3.75 mmol) of trans-O-acetyl-4-(4-chloromethylphenyl)-cyclohexanol in 10 ml of dimethylformamide is mixed with 0.52 g (3.75 mmol) of potassium carbonate and 0.27 g (3.75 mmol) of diethylamine. This mixture is heated to 50° C. for 6 hours with stirring, then water is added and the mixture is extracted with methylene chloride. The organic phase is dried, evaporated down in vacuo and the residue remaining is purified by column chromatography (aluminium oxide basic, activity stage III, ICN; petroleum ether/ethyl acetate=15:1). Colourless oil.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US05726205uspto-grants-1998_03