Benzyl Bromide → 1-Benzyl-2-[1-(2,3-dimethylphenyl)ethyl]-1h-imidazole

HRID 1169955Notes

Reaction equation

HRID 1169955 reaction equation
[CH3:1][C:2]1[C:7]([CH3:8])=[CH:6][CH:5]=[CH:4][C:3]=1[CH:9]([C:11]1[NH:12][CH:13]=[CH:14][N:15]=1)[CH3:10].C(=O)([O-])[O-].[Cs+].[Cs+].[CH2:22](Br)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1>CC(C)=O>[CH2:22]([N:15]1[CH:14]=[CH:13][N:12]=[C:11]1[CH:9]([C:3]1[CH:4]=[CH:5][CH:6]=[C:7]([CH3:8])[C:2]=1[CH3:1])[CH3:10])[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1

Participants

5

Reactant 3

HCID 7498Benzyl BromideHCID 10796Cesium carbonateHCID 216625422-(1-(2,3-Dimethylphenyl)ethyl)-1H-imidazole

Product 1

HCID 247391001-Benzyl-2-[1-(2,3-dimethylphenyl)ethyl]-1h-imidazole

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

To a suspension of the compound of Example 1 (100 mg, 0.50 mmol) and caesium carbonate (407 mg, 1.25 mmol) in acetone (4 ml) was added benzyl bromide (171 mg, 1.00 mmol). The reaction mixture was stirred at room temperature, under nitrogen, for 18 h and then concentrated in vacuo. The residue was partitioned between water (10 ml) and ethyl acetate (10 ml) and the two layers were separated. The aqueous layer was extracted with ethyl acetate (10 ml) and the combined organic phases were dried (MgSO4) and concentrated in vacuo.

Workup

  1. concentrationconcentrated in vacuo
  2. customThe residue was partitioned between water (10 ml) and ethyl acetate (10 ml)
  3. customthe two layers were separated
  4. extractionThe aqueous layer was extracted with ethyl acetate (10 ml)
  5. dry with materialthe combined organic phases were dried (MgSO4)
  6. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-4d8c56de0f644c84bc8364a888f61b3a
Source dataset
uspto-grants-2010_11
Patent number
US07825149B2

Reaction notes

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