Benzyl Bromide → 2-(Benzyloxy)-4-fluoro-1-nitrobenzene

HRID 1188869Notes

Reaction equation

HRID 1188869 reaction equation
[F:1][C:2]1[CH:3]=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([OH:8])[CH:7]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:18](Br)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>CN(C)C=O>[CH2:18]([O:8][C:6]1[CH:7]=[C:2]([F:1])[CH:3]=[CH:4][C:5]=1[N+:9]([O-:11])=[O:10])[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

5

Reactant 3

HCID 7498Benzyl BromideHCID 99375-Fluoro-2-nitrophenolHCID 11430Potassium Carbonate

Product 1

HCID 110969082-(Benzyloxy)-4-fluoro-1-nitrobenzeneYield 98%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a mixture of 5-fluoro-2-nitrophenol (50.0 g), potassium carbonate (44.0 g) and N,N-dimethylformamide (150 mL) was added benzyl bromide (59.9 g) under ice-cooling, and the mixture was stirred for 15 hr. The reaction mixture was concentrated under reduced pressure, water was added, and the mixture was subjected to extraction with ethyl acetate. The organic layer was washed with saturated brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure. The obtained solid was washed with hexane to give the title compound (77.1 g, yield 98%) as pale-yellow crystals.

Workup

  1. temperaturecooling
  2. concentrationThe reaction mixture was concentrated under reduced pressure, water
  3. additionwas added
  4. extractionthe mixture was subjected to extraction with ethyl acetate
  5. washThe organic layer was washed with saturated brine
  6. dry with materialdried over magnesium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated under reduced pressure
  9. washThe obtained solid was washed with hexane

Sources & evidence

ORD record
ord-35b7b4408343412aa17ea13e7bc06d5d
Source dataset
uspto-grants-2014_03
Patent number
US08673942B2

Reaction notes

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