1-(2-fluoro-4-nitrophenyl)-1H-imidazole → 3-fluoro-4-(1H-imidazol-1-yl)aniline

HRID 559006Notes

Reaction equation

HRID 559006 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([N+:8]([O-])=O)[CH:5]=[CH:4][C:3]=1[N:11]1[CH:15]=[CH:14][N:13]=[CH:12]1>CO.[Pd]>[F:1][C:2]1[CH:7]=[C:6]([NH2:8])[CH:5]=[CH:4][C:3]=1[N:11]1[CH:15]=[CH:14][N:13]=[CH:12]1

Participants

4

Reactant 1

HCID 53061531-(2-fluoro-4-nitrophenyl)-1H-imidazole

Product 1

HCID 103749763-fluoro-4-(1H-imidazol-1-yl)anilineYield 88.5%

Reagents, catalysts & solvents 2

HCID 887MethanolCatalystHCID 23938PalladiumCatalyst

Procedure

A mixture of 1-(2-fluoro-4-nitrophenyl)-1H-imidazole (1.81 g, 8.74 mmol) and Pd—C (10%, 0.200 g) in MeOH (20 mL) (containing 10 drops of 6N HCl) was hydrogenated under balloon H2 overnight. The mixture was filtered through celite. The filtrate was concentrated in vacuo. The residue was dried on vacuum to give 3-fluoro-4-(1H-imidazol-1-yl)benzenamine as a solid (1.37 g). MS 178.3 (M+H)

Workup

  1. customwas hydrogenated under balloon H2 overnight
  2. filtrationThe mixture was filtered through celite
  3. concentrationThe filtrate was concentrated in vacuo
  4. customThe residue was dried on vacuum

Sources & evidence

ORD record
ord-6078d85240214a5da2cf80796eb2eec7
Source dataset
uspto-grants-2011_11
Patent number
US08063058B2

Reaction notes

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