反应详情

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.

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