反应详情

温度

100 °C

To 35 ml of dry dimethylformamide was added 1.6 g of 4-phenylpiperazine, 2.1 g of 3-(3-chloropropyl)-6-fluoro-1,2-benzisoxazole, 8.0 g of sodium bicarbonate, and a few crystals of potassium iodide. The mixture was heated at 100° C. for three hrs, with stirring. The mixture was filtered and the filtrate was evaporated to an oil. The oil was stirred with 100 ml of water for five mins and then extracted with ether. The ether extract was washed with water (2×), saturated sodium chloride solution, and dried over anhydrous magnesium sulfate. After filtering, the solution was converted to 4.0 g (70%) of product, by treatment with ethereal oxalic acid. Recrystallization twice from ethyl acetate/methanol/ether yielded the analytical sample mp 188°-190° C. (dec).

1. filtrationThe mixture was filtered
2. customthe filtrate was evaporated to an oil
3. stirringThe oil was stirred with 100 ml of water for five mins
4. extractionextracted with ether
5. extractionThe ether extract
6. washwas washed with water (2×), saturated sodium chloride solution
7. dry with materialdried over anhydrous magnesium sulfate
8. filtrationAfter filtering
9. customRecrystallization twice from ethyl acetate/methanol/ether
10. customyielded the analytical sample mp 188°-190° C. (dec)