Reacción #4636

ord-2158019772d240b48c99ecea1fc7c2f3

Ecuación de reacción

NC(=O)c1c(O)cccc1O
2,6-dihydroxybenzamide
O=C([O-])[O-].[K+].[K+]
potassium carbonate
BrCCBr
1,2-dibromoethane
NC(=O)c1c(O)cccc1OCCBr
6-(2-Bromoethoxy)salicylamide

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Temperaturais refluxed
  2. 2
    FiltraciónThe reaction mixture is filtered
  3. 3
    Temperaturawhilst still warm
  4. 4
    Concentraciónthe filtrate concentrated by evaporation
  5. 5
    Otrothe residue recrystallised from a little methanol

Procedimiento

A mixture of 23.0 g of 2,6-dihydroxybenzamide, 20.7 g of potassium carbonate and 28.2 g of 1,2-dibromoethane is refluxed, whilst stirring, for 2-3 hours in 300 ml of acetonitrile. The reaction mixture is filtered whilst still warm, the filtrate concentrated by evaporation and the residue recrystallised from a little methanol. 6-(2-Bromoethoxy)salicylamide having a melting point of 120°-121° is obtained.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US04727067uspto-grants-1988_02