2-Methyl-1-(4-nitrophenyl)-1H-imidazole → 4-(2-methyl-1H-imidazol-1-yl)aniline

HRID 745983Notes

Reaction equation

HRID 745983 reaction equation
[CH3:1][C:2]1[N:3]([C:7]2[CH:12]=[CH:11][C:10]([N+:13]([O-])=O)=[CH:9][CH:8]=2)[CH:4]=[CH:5][N:6]=1>C(O)C.[Pd]>[NH2:13][C:10]1[CH:9]=[CH:8][C:7]([N:3]2[CH:4]=[CH:5][N:6]=[C:2]2[CH3:1])=[CH:12][CH:11]=1

Participants

4

Reactant 1

HCID 100131182-Methyl-1-(4-nitrophenyl)-1H-imidazole

Product 1

HCID 31574784-(2-methyl-1H-imidazol-1-yl)anilineYield 85.2%

Reagents, catalysts & solvents 2

HCID 23938PalladiumCatalystHCID 702EthanolSolvent

Procedure

13.5 g of 2-methyl-1-(4-nitrophenyl)imidazole was hydrogenated in the presence of 10% Pd/c in 160 ml of ethanol at 30° to 40° C. at an initial pressure of 40 kg/cm2. After 3 hours, the reduction mixture was filtered and the solvent was removed from the filtrate under reduced pressure. The residue was recrystallized from a mixed solvent of benzene and n-hexane to obtain 9.8 g of the intended compound having a melting point of 112° to 113° C. Elementary analysis values as C10H11N3 were as follows.

Workup

  1. filtrationthe reduction mixture was filtered
  2. customthe solvent was removed from the filtrate under reduced pressure
  3. customThe residue was recrystallized from a mixed solvent of benzene and n-hexane

Sources & evidence

ORD record
ord-ff74e45cc39e42aaa528da929137dac6
Source dataset
uspto-grants-1986_07
Patent number
US04602031

Reaction notes

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