以Pd(Ph3P)4为催化剂, 在相转移条件下, 高产率地合成了丙二酸二乙酯。讨论了温度、碱的种类与浓度、催化剂及相转移催化剂对丙二酸二乙酯收率的影响。通过对常压下反应动力学数据的分析,得出该反应为准一级反应,求得了常压下的反应动力学方程和表观活化能,并提出可能的反应机理。 With Pd (Ph3P) 4 as catalyst, diethyl malonate was synthesized with high yield under phase transfer conditions. The effects of temperature, type and concentration of base, catalyst and phase transfer catalyst on the yield of diethyl malonate were discussed. Through the analysis of reaction kinetic data at atmospheric pressure, the reaction was quasi-first-order reaction, and the reaction kinetics equation and apparent activation energy were obtained under normal pressure, and the possible reaction mechanism was proposed.