反应详情

温度

70 °C

A mixture of 0.64 g of 2-chloro-5-trifluoromethylsulfanylpyridine, 0.54 g of 3-ethylsulfanylpicolinic acid amide, 1.96 g of cesium carbonate, 0.33 g of DABCO and 5 mL of DMSO was stirred at 70° C. for 1 hour. Water was added to the reaction mixture cooled to room temperature, and the mixture was extracted with ethyl acetate. The organic layer was dried over anhydrous sodium sulfate and then concentrated under reduced pressure, and the resulting residue was applied to a silica gel column chromatography to obtain 0.40 g of 3-ethylsulfanyl-N-(5-trifluoromethylsulfanylpyridin-2-yl)picolinamide (hereinafter, referred to as Compound of Present Invention 48).

1. temperaturecooled to room temperature
2. extractionthe mixture was extracted with ethyl acetate
3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
4. concentrationconcentrated under reduced pressure