Imidazole → N-p-methoxybenzylimidazole

HRID 993452Notes

Reaction equation

HRID 993452 reaction equation
[NH:1]1[CH:5]=[CH:4][N:3]=[CH:2]1.[CH3:6][O:7][C:8]1[CH:15]=[CH:14][C:11]([CH2:12]Cl)=[CH:10][CH:9]=1>C(#N)C>[CH3:6][O:7][C:8]1[CH:15]=[CH:14][C:11]([CH2:12][N:1]2[CH:5]=[CH:4][N:3]=[CH:2]2)=[CH:10][CH:9]=1

Participants

4

Reactant 2

HCID 795ImidazoleHCID 699934-Methyloxybenzyl chloride

Product 1

HCID 578587N-p-methoxybenzylimidazoleYield 69.3%

Reagents, catalysts & solvents 1

HCID 6342AcetonitrileSolvent

Procedure

To a stirred solution of imidazole (25.35 g, 375 mmole) in acetonitrile (625 ml) was added p-methoxybenzyl chloride (16.95 ml, 125 mmole). The reaction was refluxed for 16 hours, evaporated to dryness, and redissolved in methylene chloride and saturated sodium bicarbonate. The organic layer was extracted with water twice. Standard acid/base workup gave N-p-methoxybenzylimidazole (16.3 g, 69%) which was used without further purification:

Workup

  1. temperatureThe reaction was refluxed for 16 hours
  2. customevaporated to dryness
  3. dissolutionredissolved in methylene chloride
  4. extractionThe organic layer was extracted with water twice

Sources & evidence

ORD record
ord-82de1d7dfb1842f0a62a657fa46700f7
Source dataset
uspto-grants-2002_10
Patent number
US06472387B1

Reaction notes

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