反应详情

温度

100 °C

To a mixture of 2-furfural (500 g, 5.20 mol) and malonic acid (595 g, 5.72 mol) in pyridine (500 mL) was added piperidine (50 mL, 0.505 mol) at room temperature, and the mixture was stirred at 100° C. for 3 hr. The reaction solution was poured into water (1 L) and acidified with 6M hydrochloric acid. The resulting precipitate was collected by filtration to give the title compound (660 g, yield 92%).

1. filtrationThe resulting precipitate was collected by filtration