反应详情

17.1 g (0.24 mol) of pyrrolidine were added to 19.2 g (0.24 mol) of a 37% aqueous formaldehyde solution in 140 ml of ethanol. Then 25.0 g (0.16 mol) of 2,3,4-trihydroxybenzaldehyde were added thereto. The reaction mixture was refluxed for one hour, developing a dark brown color. After cooling, a beige-brown solid precipitated out, which was filtered out and dried.

1. temperatureThe reaction mixture was refluxed for one hour
2. temperatureAfter cooling
3. customa beige-brown solid precipitated out
4. filtrationwhich was filtered out
5. customdried