反应详情

4-Cyano-3-(3-morpholinopropoxy)aniline (2.5 g, 9.6 mmol) and 2,2-dimethyl-5-methoxymethylene-1,3-dioxane-4,6-dione (2.4 g, 13 mmol), (Montatsh. Chem. 1967, 98, 564), in ethanol (40 ml) was heated at reflux for 2 hours. The mixture was allowed to cool and the solid was collected by filtration to give 5-((4-cyano-3-(3-morpholinopropoxy)anilino)methylene)-2,2-dimethyl-1,3-dioxane-4.6-dione (2.96 g, 74%).

1. temperatureat reflux for 2 hours
2. temperatureto cool
3. filtrationthe solid was collected by filtration