3,4-dichloro-phenyl-hydroxymalonic acid diamide 、
邻氯苯甲酰氯 在
乙醇 作用下,
以
吡啶 、
乙酸乙酯 为溶剂,
反应 1.0h,
以13 g of pure 3,4-dichlorophenyl-(2-chlorobenzoyloxy)-malonic acid diamide of melting point 220° C. were obtained的产率得到3,4-dichlorophenyl-(2-chlorobenzoyloxy)-malonic acid diamide