Water → 1-Chloro-5-fluoro-2-methoxy-4-nitrobenzene

HRID 1980060Notes

Reaction equation

HRID 1980060 reaction equation
[Cl:1][C:2]1[CH:7]=[C:6]([F:8])[C:5]([N+:9]([O-:11])=[O:10])=[CH:4][C:3]=1[OH:12].[C:13](=O)([O-])[O-].[K+].[K+].CI.O>C(#N)C>[Cl:1][C:2]1[C:3]([O:12][CH3:13])=[CH:4][C:5]([N+:9]([O-:11])=[O:10])=[C:6]([F:8])[CH:7]=1

Participants

6

Reactant 4

HCID 962WaterHCID 6328Methyl iodideHCID 11430Potassium CarbonateHCID 158655Phenol, 2-chloro-4-fluoro-5-nitro-

Product 1

HCID 27792951-Chloro-5-fluoro-2-methoxy-4-nitrobenzeneYield 157.5%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

2-Chloro-4-fluoro-5-nitrophenol (9.6 g) and potassium carbonate (3.8 g) were stirred in acetonitrile (50 ml). Methyl iodide (14 g) was added thereto and refluxed for 3 hours. Water was added to the reaction mixture, followed by extraction with ether. The ether extract was washed with water, dried and concentrated. The residue was recrystallized from ethanol to obtain 8.9 g of 4-chloro-2-fluoro-5-methoxynitrobenzene. M.P., 67.5-69.8° C.

Workup

  1. temperaturerefluxed for 3 hours
  2. extractionfollowed by extraction with ether
  3. extractionThe ether extract
  4. washwas washed with water
  5. customdried
  6. concentrationconcentrated
  7. customThe residue was recrystallized from ethanol

Sources & evidence

ORD record
ord-ee32b7cd949144988a9d2fcf36ac15ed
Source dataset
uspto-grants-1984_11
Patent number
US04484940

Reaction notes

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