1-Methylimidazole → HCID 178448534, compound

HRID 516649Notes

Reaction equation

HRID 516649 reaction equation
[Br:1][CH2:2][CH2:3][CH2:4][CH3:5].[CH3:6][N:7]1[CH:11]=[CH:10][N:9]=[CH:8]1>>[Br-:1].[CH2:2]([N+:9]1[CH:10]=[CH:11][N:7]([CH3:6])[CH:8]=1)[CH2:3][CH2:4][CH3:5]

Participants

3

Conditions

Temperature
80 °C

Procedure

1-bromobutane (110 mmol, 15.07 grams) and 1-methylimidazole (100 mmol, 8.21 grams) were added to a 250 mL flask. The reaction mixture was stirred for 48 hours at 80° C. The resulting ionic liquid was then cooled, washed with ether (3×25 mL) to remove unreacted starting materials, and the product was dried under vacuum at 80° C. for 4 hours to afford 1-butyl-3-methylimidazolium bromide [BMIMBr] in a yield of 93% with 96% purity. The procedure was repeated using 1-chlorobutane and 1-iodobutane to give the corresponding chloride and iodide salts.

Workup

  1. temperatureThe resulting ionic liquid was then cooled
  2. washwashed with ether (3×25 mL)
  3. customto remove unreacted
  4. customthe product was dried under vacuum at 80° C. for 4 hours

Sources & evidence

ORD record
ord-800122ec37a041d084a7f188a72fecec
Source dataset
uspto-grants-2015_08
Patent number
US09114360B2

Reaction notes

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