反应详情

A solution of 2-(ethylsulfonyl)-6-methyl-4-morpholin-4-yl-benzonitrile (0.50 g, 1.70 mmol) in concentrated sulfuric acid (4 ml) is stirred at 100° C. for 1.5 h. After completion of reaction (monitored by TLC), the reaction mixture is diluted with water (30 ml), basified with aqueous ammonia, and extracted with ethyl acetate (3×15 ml). The organic layer is washed with water (20 ml), brine (15 ml), dried over anhydrous sodium sulfate and evaporated to get 2-(ethylsulfonyl)-6-methyl-4-morpholin-4-yl-benzamide which is used in the next step without further purification (0.50 g, 1.60 mmol, 94%).

1. customAfter completion of reaction (monitored by TLC)
2. extractionextracted with ethyl acetate (3×15 ml)
3. washThe organic layer is washed with water (20 ml), brine (15 ml)
4. dry with materialdried over anhydrous sodium sulfate
5. customevaporated