Potassium Carbonate → 2-Ethyl-1-(2-nitro-5-fluorophenyl)-4-methyl-1H-imidazole

Reaction equation

F[C:2]1[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=1[N+:9]([O-:11])=[O:10].[CH2:12]([C:14]1[NH:15][CH:16]=[C:17]([CH3:19])[N:18]=1)[CH3:13].C([O-])([O-])=O.[K+].[K+]>C(#N)C>[CH2:12]([C:14]1[N:15]([C:2]2[CH:7]=[C:6]([F:8])[CH:5]=[CH:4][C:3]=2[N+:9]([O-:11])=[O:10])[CH:16]=[C:17]([CH3:19])[N:18]=1)[CH3:13]

Participants

Procedure

Combine 100 g of 2,4-difluoronitrobenzene, 69 g of 2-ethyl-4-methylimidazole and 100 g of K2CO3 in 700 mL of acetonitrile, and stir at room temperature for 4 days. Remove the solvent under vacuum. Slurry the residue in 300 mL of CH2Cl2 and chromatograph over 1 kg of silica gel using CH2Cl2. Combine the appropriate fractions and remove the solvent under vacuum. Crystallize the residue from pet ether to provide the title compound.