反应详情

To a solution of 3-aminopyrazole (100 g) in acetic acid (1000 ml) was added 2,5-hexanedione (148 ml), and the mixture was stirred for 2.4 hours at reflux. This reaction solution was cooled to room temperature, water (1000 ml) was added thereto, and the precipitated solid was collected by filtration. The resulting solid was washed with water (1000 ml), and dried under reduced pressure to give the titled compound (183 g).

1. temperatureat reflux
2. filtrationthe precipitated solid was collected by filtration
3. washThe resulting solid was washed with water (1000 ml)
4. customdried under reduced pressure