Reacción #318450

ord-35128eac01ce49929cd511693933e352

Condiciones de reacción

Temperatura
60°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    workup.ADDITIONAfter the addition
  2. 2
    workup.STIRRINGstirred at that temperature for 40 minutes
  3. 3
    workup.STIRRINGthe resulting mixture is stirred at 60° C. for 2 hours
  4. 4
    OtroThe thus obtaind reaction mixture
  5. 5
    Extracciónextracted with hexane-ethyl acetate (1:1)
  6. 6
    LavadoThe extract layer is washed with water
  7. 7
    Otrodried
  8. 8
    Concentraciónconcentrated
  9. 9
    OtroThe residue is purified by silica gel column chromatography

Procedimiento

In 100 ml of dimethylsulfoxide is suspended 1.4 g of sodium hydride, to which 9.73 g of benzyl alcohol is added dropwise at room temperature with stirring. After the addition is over, the mixture is gradually heated to 60° C. and stirred at that temperature for 40 minutes. Then, a solution of 9.7 g of 1,2-epoxy-3-(12-cyclohexyldodecyloxy)propane in 50 ml of tetrahydrofuran is added dropwise to the mixture and the resulting mixture is stirred at 60° C. for 2 hours. The thus obtaind reaction mixture is then neutralized with dilute hydrochloric acid and extracted with hexane-ethyl acetate (1:1). The extract layer is washed with water, dried and concentrated. The residue is purified by silica gel column chromatography to yield 10.2 g of the captioned compound as an oily substance.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US04845219uspto-grants-1989_07