p-Anisoyl chloride → Pyridine, 4-[2-(4-methoxyphenyl)-1-methyl-4-phenyl-1H-imidazol-5-yl]-

HRID 2257374Notes

Reaction equation

HRID 2257374 reaction equation
[CH3:1][O:2][C:3]1[CH:19]=[CH:18][C:6]([C:7]([N:9]([CH3:17])[CH2:10][C:11]2[CH:16]=[CH:15][N:14]=[CH:13][CH:12]=2)=O)=[CH:5][CH:4]=1.C[NH:21][CH2:22][C:23]1[CH:28]=[CH:27]N=[CH:25][CH:24]=1.[CH2:29](N(CC)CC)C.COC1C=CC(C(Cl)=O)=CC=1>C(Cl)Cl>[CH3:17][N:9]1[C:10]([C:11]2[CH:16]=[CH:15][N:14]=[CH:13][CH:12]=2)=[C:22]([C:23]2[CH:28]=[CH:27][CH:29]=[CH:25][CH:24]=2)[N:21]=[C:7]1[C:6]1[CH:18]=[CH:19][C:3]([O:2][CH3:1])=[CH:4][CH:5]=1

Participants

6

Reactant 4

HCID 7477p-Anisoyl chlorideHCID 8471TriethylamineHCID 81436N-Methylpyridine-4-methylamineHCID 154078804-Methoxy-N-methyl-N-(4-picolyl)benzamide

Product 1

HCID 10268890Pyridine, 4-[2-(4-methoxyphenyl)-1-methyl-4-phenyl-1H-imidazol-5-yl]-Yield 21%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

4-Methoxy-N-methyl-N-(4-picolyl)benzamide--To a solution of N-methyl-N-(4-picolyl)amine (0.40 g, 3.3 mmol) and triethylamine (1.5 mL, 10.8 mmol) in CH2Cl2 (15 mL) was added 4-methoxybenzoyl chloride (1.2 g, 7.3 mmol). The resulting mixture was stirred at rt for 15 min, and then partitioned between 2.5N NaOH and Et2O. The organic extract was washed with saturated aqueous NaCl and dried (MgSO4). The solvent was removed in vacuo, and the residue was purified by flash chromatography, eluting with a solvent gradient of 2-4% MeOH/CHCl3. The material that was isolated was triturated with Et2O to provide the title compound as a light yellow solid (0.18 g, 21%): 1H NMR (CDCl3): d 8.60 (d, 2H); 7.43 (br d, 2H); 7.20 (br s, 2H); 6.90 (br d, 2H); 4.66 (br s, 2H); 3.80 (s, 3H); 3.00 (s, 3H).

Workup

  1. custompartitioned between 2.5N NaOH and Et2O
  2. extractionThe organic extract
  3. washwas washed with saturated aqueous NaCl
  4. dry with materialdried (MgSO4)
  5. customThe solvent was removed in vacuo
  6. customthe residue was purified by flash chromatography
  7. washeluting with a solvent gradient of 2-4% MeOH/CHCl3
  8. customThe material that was isolated
  9. customwas triturated with Et2O

Sources & evidence

ORD record
ord-75a592a4f7c948099fc35474faa68203
Source dataset
uspto-grants-1997_08
Patent number
US05656644

Reaction notes

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