P-Cresol → 2-(4-chlorophenyl)-4-[(4-methylphenoxy)methyl]-1-[4-(methylsulfonyl)phenyl]-1H-imidazole

HRID 1353004Notes

Reaction equation

HRID 1353004 reaction equation
Cl[CH2:2][C:3]1[N:4]=[C:5]([C:18]2[CH:23]=[CH:22][C:21]([Cl:24])=[CH:20][CH:19]=2)[N:6]([C:8]2[CH:13]=[CH:12][C:11]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:10][CH:9]=2)[CH:7]=1.[CH:25]1[C:30]([OH:31])=[CH:29][CH:28]=[C:27]([CH3:32])[CH:26]=1.C(=O)([O-])[O-].[K+].[K+]>CN(C)C=O>[Cl:24][C:21]1[CH:20]=[CH:19][C:18]([C:5]2[N:6]([C:8]3[CH:13]=[CH:12][C:11]([S:14]([CH3:17])(=[O:16])=[O:15])=[CH:10][CH:9]=3)[CH:7]=[C:3]([CH2:2][O:31][C:30]3[CH:25]=[CH:26][C:27]([CH3:32])=[CH:28][CH:29]=3)[N:4]=2)=[CH:23][CH:22]=1

Participants

5

Reactant 3

HCID 2879P-CresolHCID 11430Potassium CarbonateHCID 108098434-chloromethyl-2-(4-chlorophenyl)-1-(4-(methylsulfonyl)phenyl]-1H-imidazole

Product 1

HCID 229977132-(4-chlorophenyl)-4-[(4-methylphenoxy)methyl]-1-[4-(methylsulfonyl)phenyl]-1H-imidazoleYield 81.4%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

A mixture of 122 mg (0.32 mmole) of 4-chloromethyl-2-(4-chlorophenyl)-1-[4-(methylsulfonyl)phenyl]-1H-imidazole (Step 1), p-cresol (69 mg, 0.64 mmole), and potassium carbonate (110 mg, 0.8 mmole) in 5 ml of dimethylformamide was stirred at 85–90° C. for 6 hours. After cooling, the mixture was partitioned between ethyl acetate and aqueous sodium chloride, and the aqueous layer was extracted with ethyl acetate. The combined organic extracts were washed with brine, dried over sodium sulfate, filtered, and evaporated. Chromatography of the residue over silica gel using mixtures of ethyl acetate and hexane gave 2-(4-chlorophenyl)-4-[(4-methylphenoxy)methyl]-1-[4-(methylsulfonyl)phenyl]-1H-imidazole as a pure white solid (118 mg): m.p. (DSC) 193° C. Anal. Calc'd. for C24H21ClN2O3S (Mw 452.96): C, 63.64; H, 4.67; N, 6.18. Found: C, 63.42; H, 4.64; N, 5.79.

Workup

  1. temperatureAfter cooling
  2. customthe mixture was partitioned between ethyl acetate and aqueous sodium chloride
  3. extractionthe aqueous layer was extracted with ethyl acetate
  4. washThe combined organic extracts were washed with brine
  5. dry with materialdried over sodium sulfate
  6. filtrationfiltered
  7. customevaporated

Sources & evidence

ORD record
ord-ea5ddbe23827403e98f2b81b3b4128ba
Source dataset
uspto-grants-2007_05
Patent number
US07220770B2

Reaction notes

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