Bromine → 2-Bromo-1-(2-fluorophenyl)propan-1-one

HRID 2196873Notes

Reaction equation

HRID 2196873 reaction equation
[F:1][C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][C:3]=1[C:8](=[O:11])[CH2:9][CH3:10].[Br:12]Br>C(O)(=O)C>[Br:12][CH:9]([CH3:10])[C:8]([C:3]1[CH:4]=[CH:5][CH:6]=[CH:7][C:2]=1[F:1])=[O:11]

Participants

4

Reactant 2

HCID 24408BromineHCID 5793991-(2-Fluorophenyl)propan-1-one

Product 1

HCID 221113342-Bromo-1-(2-fluorophenyl)propan-1-oneYield 97%

Reagents, catalysts & solvents 1

HCID 176Acetic AcidSolvent

Procedure

To a solution of 2′-fluoropropiophenone (25.0 g) in acetic acid (250 mL) was slowly added bromine (8.4 mL). The mixture was stirred at room temperature for 3 hr, and concentrated under reduced pressure. Water (200 mL) was added to the residue, and the mixture was extracted with diisopropyl ether. The extract was washed with saturated aqueous sodium hydrogencarbonate solution, water and saturated brine, dried over anhydrous magnesium sulfate, filtered and concentrated under reduced pressure to give the title compound as a yellow oil (yield 36.8 g, 97%).

Workup

  1. concentrationconcentrated under reduced pressure
  2. additionWater (200 mL) was added to the residue
  3. extractionthe mixture was extracted with diisopropyl ether
  4. washThe extract was washed with saturated aqueous sodium hydrogencarbonate solution, water and saturated brine
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated under reduced pressure

Sources & evidence

ORD record
ord-4b5f485fb89c40b991c32ac541930b0e
Source dataset
uspto-grants-2012_12
Patent number
US08338461B2

Reaction notes

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