反应详情

At room temperature, 0.5 g of potassium hydrogensulphate are added to a suspension of 1.7 g of N-[(6-chloropyridin-3-yl)methyl]-N-(2,2-difluoroethyl)-4-hydroxy-2-oxo-2,5-dihydrofuran-3-carboxamide in 50 ml of butyronitrile. The mixture is heated at reflux for 5 hours. It is then cooled to room temperature and washed with 30 ml of water. The solvent is removed in vacuo. This gives 1 g of 4-[[(6-chloropyridin-3-yl)methyl](2,2-difluoroethyl)amino]furan-2(5H)-one (this corresponds to 77% yield).

1. temperatureThe mixture is heated
2. temperatureat reflux for 5 hours
3. washwashed with 30 ml of water
4. customThe solvent is removed in vacuo