反应详情

5-(5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4-methyl-1H-pyrazol-3-yl)-1H-tetrazole (150 mg, 0.37 mmol) obtained in Step 1 was dissolved in dimethylformamide (1 ml), and potassium carbonate (250 mg, 1.85 mmol) and 1-iodopropane (0.07 ml, 1.1 mmol) were added thereto at room temperature. After stirring for 5 hours, the resulting solution was quenched with water (1 ml) and the mixture was three time extracted with 5 ml portion of ethyl acetate. The solvent of the extracted organic layer was evaporated under a reduced pressure and the residue was subjected to silica gel column chromatography (hexane/ethyl acetate=1/7 to hexane/ethyl acetate=1/5), to obtain two compounds, one of which was the title compound (61 mg, 37%) in the form of white solid.

1. customat room temperature
2. customthe resulting solution was quenched with water (1 ml)
3. extractionextracted with 5 ml portion of ethyl acetate
4. customThe solvent of the extracted organic layer was evaporated under a reduced pressure
5. customto obtain two compounds, one of which