Reaktion #1876812

ord-e2b1c3cd2a7f482abbd02b5942d73d0c

Reaktionsgleichung

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 )
Ausbeute 76.9%
CCOc1ccc(Br)c(C(F)(F)F)c1
2-bromo-5-ethoxybenzotrifluoride
Ausbeute 76.9%

Lösungsmittel

Reaktionsbedingungen

Detaillierte Bedingungen
See reaction.notes.procedure_details.

Aufarbeitung

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

Vorschrift

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).

Quelle

DOI: 10.6084/m9.figshare.5104873.v1Patent: US07070838B2uspto-grants-2006_07