1-Methylimidazole → 1-Methyl-3-propylimidazolium iodide

HRID 449241Notes

Reaction equation

HRID 449241 reaction equation
[CH3:1][N:2]1[CH:6]=[CH:5][N:4]=[CH:3]1.[CH2:7]([I:10])[CH2:8][CH3:9]>C1(C)C=CC=CC=1>[I-:10].[CH3:1][N+:2]1[CH:6]=[CH:5][N:4]([CH2:7][CH2:8][CH3:9])[CH:3]=1

Participants

4

Reactant 2

HCID 13901-MethylimidazoleHCID 336431-Iodopropane

Product 1

HCID 129710081-Methyl-3-propylimidazolium iodide

Reagents, catalysts & solvents 1

HCID 1140TolueneSolvent

Procedure

1-Methylimidazole (8.2 g, made by Aldrich) and propyl iodide (16.9 g, made by Kanto Chemical) were stirred in toluene at 75° C. for 15 hours. After the end of the reaction, the reaction solution separated into the two layers of a toluene layer and an ionic liquid layer. By removing the toluene layer from the reaction solution, the ionic liquid was obtained. The ionic liquid obtained was washed with toluene 3 times for purification. The toluene was distilled off in vacuo, whereby an ionic liquid 1-methyl-3-propylimidazolium iodide (23.8 g) was obtained.

Workup

  1. customAfter the end of the reaction
  2. customthe reaction solution separated into the two layers of a toluene layer
  3. customBy removing the toluene layer from the reaction solution
  4. customthe ionic liquid was obtained
  5. customThe ionic liquid obtained
  6. washwas washed with toluene 3 times for purification
  7. distillationThe toluene was distilled off in vacuo, whereby an ionic liquid 1-methyl-3-propylimidazolium iodide (23.8 g)
  8. customwas obtained

Sources & evidence

ORD record
ord-a290ab05dd754b4ea28be7e14d41d2cb
Source dataset
uspto-grants-2013_07
Patent number
US08481849B2

Reaction notes

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