反应详情

温度

50 °C

7-Chloro-4-hydroxy-3-quinolinecarboxylic acid (500 mg) (Org. Syn. Coll. 3:272-275 (1955)) is dissolved in N,N-dimethylformamide (20 mL) and to the mixture is added 1,1'-carbonyl diimidazole (399 mg). The mixture is heated at 50° C. for 20 h and then allowed to cool to rt. The mixture is treated with water (200 mL) and then after 5 min, 4-chlorobenzylamine (300 mL) is added. The mixture is allowed to stir at rt for 2 days and then is poured into water (50 mL) and the resulting white precipitate is filtered. The crude product is recrystallized (acetic acid, water) to afford 481 mg of the title compound as a white solid.

1. temperatureto cool to rt
2. filtrationthe resulting white precipitate is filtered
3. customThe crude product is recrystallized (acetic acid, water)