Reacción #43926

ord-c62a1446a0cf4c86baf2176395751b80

Ecuación de reacción

Cc1cc(O)cc(C)c1Br
4-bromo-3,5-dimethylphenol
CC(=O)OC(C)=O
acetic anhydride
CC(=O)Oc1cc(C)c(Br)c(C)c1
title compound
Rendimiento 128.9%
CC(=O)Oc1cc(C)c(Br)c(C)c1
4-bromo-3,5-dimethylphenyl acetate
Rendimiento 128.9%

Condiciones de reacción

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

Tratamiento posterior

  1. 1
    Temperaturacooled
  2. 2
    Extracciónextracted with ethyl acetate
  3. 3
    LavadoThe extract was washed with saturated brine
  4. 4
    Secadodried over anhydrous magnesium sulfate
  5. 5
    Concentraciónconcentrated under reduced pressure

Procedimiento

To a solution of 4-bromo-3,5-dimethylphenol (10.1 g, 50.0 mmol) in pyridine (13 mL) was added acetic anhydride (7.66 g, 38.6 mmol), and the mixture was stirred at 50° C. for 30 min. The reaction mixture was ice-cooled, diluted with 0.5 M hydrochloric acid, and extracted with ethyl acetate. The extract was washed with saturated brine, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure to give the title compound (12.1 g, yield 99%) as a yellow oil.

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07732626B2uspto-grants-2010_06