Reacción #1876812

ord-e2b1c3cd2a7f482abbd02b5942d73d0c

Ecuación de reacción

BrBr
Bromine
CCOc1cccc(C(F)(F)F)c1
Compound ( b )
CCOc1cccc(C(F)(F)F)c1
3-ethoxybenzotrifluoride
O
Water
CCOc1ccc(Br)c(C(F)(F)F)c1
Compound ( c )
Rendimiento 76.9%
CCOc1ccc(Br)c(C(F)(F)F)c1
2-bromo-5-ethoxybenzotrifluoride
Rendimiento 76.9%

Disolventes

Condiciones de reacción

Condiciones detalladas
See reaction.notes.procedure_details.

Tratamiento posterior

  1. 1
    Extracciónthe aqueous layer was extracted three times with ether
  2. 2
    Lavadowashed with saturated aqueous sodium bicarbonate and water
  3. 3
    Secadodried over anhydrous magnesium sulfate
  4. 4
    workup.DISTILLATIONThe solvent was distilled off under reduced pressure

Procedimiento

Bromine (18.2 g) was slowly added dropwise to Compound (b) (19.3 g) at room temperature, and then the mixture was stirred at room temperature for 1 hour. Water and ether were added for liquid separation, and the aqueous layer was extracted three times with ether. The organic layers were combined, washed with saturated aqueous sodium bicarbonate and water, and then dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure to obtain 21.0 g of Compound (c).

Fuente

DOI: 10.6084/m9.figshare.5104873.v1Patente: US07070838B2uspto-grants-2006_07