Reacción #51634

ord-14089d6065474121a1b9c499e0722165

Disolventes

Condiciones de reacción

Temperatura
0°CELSIUS
Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturathe mixture is heated
  2. 2
    Temperaturaunder reflux until completion of the reaction (5-12 hours)
  3. 3
    Filtraciónis filtered off
  4. 4
    Lavadowashed with water
  5. 5
    OtroThe crude material is purified by usual silica gel chromatography

Procedimiento

A solution of bromo(4-nitrophenyl)acetaldehyde and potassium thiocyanate (1.2 equivalents) in methanol is stirred at room temperature for 1 hour. The cyclohexylamine (1,05 equivalents) is added drop-wise and the mixture is heated under reflux until completion of the reaction (5-12 hours). After cooling to 0° C. the precipitate is filtered off and washed with water. The crude material is purified by usual silica gel chromatography to give the desired compound.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US06852720B2uspto-grants-2005_02