2,3-Dichlor-propionyl-isocyanat 、
3,4-二氯苯胺 在
petroleum ether 作用下,
以
苯 为溶剂,
以25 g of N-(3,4-dichlorophenyl)-N'-(2,3-dichloropropionyl)-urea of melting point 145° to 148° C, with decomposition, were obtained的产率得到N-(3,4-dichlorophenyl)-N'-(2,3-dichloropropionyl)-urea