Reacción #572011

ord-76865f72ee6344dd80d17dc3804f5940

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    TemperaturaThe reaction solution was cooled
  2. 2
    Otrothe chloroform layer was separated
  3. 3
    Otrocondensed under reduced pressure
  4. 4
    Otrothe residue was recrystallized from 5 ml of ethyl alcohol

Procedimiento

15 g of the 1-(2-phenoxyethyl)piperidine thus obtained was reacted with 30 ml of 40% hydrobromic acid at 150° C. for 7 hours with stirring. The reaction solution was cooled, added with 20 ml of chloroform and then the chloroform layer was separated. The hydrobromic acid layer was condensed under reduced pressure and the residue was recrystallized from 5 ml of ethyl alcohol to give 15.1 g of 1-(2-bromoethyl)piperidine hydrobromide having a melting point of 89° C. to 91° C. in a yield of 79%.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US04533731uspto-grants-1985_08