反应详情

1.0 g (5.0 mmol) of methyl 8-hydroxy-5-quinolinecarboxylate was dissolved in 20 ml of dimethylformamide, 0.76 g (5.5 mmol) of potassium carbonate was added and 14 g of chlorodifluoromethane were introduced at 40° C. over a period of 2 hours. Solid components were then filtered off, the solvent was removed and the residue was washed with water and dried. This gave 0.75 g of a brown powder;

1. filtrationSolid components were then filtered off
2. customthe solvent was removed
3. washthe residue was washed with water
4. customdried