【摘要】 在研究Ｚｎ（ＯＡｃ）２ 催化剂的基础上， 探讨了不同载体上Ｚｎ（ＯＡｃ）２ 的催化性能，开发出负载型的Ｚｎ（ＯＡｃ）２ ／ＡＣ（或α－Ａｌ２Ｏ３ ）催化剂， 在该催化剂上用碳酸二甲酯与苯胺催化合成了苯氨基甲酸甲酯 （ＭＰＣ），考察了反应条件 （进料比、反应温度） 对反应性能的影响， 确定了适宜的操作条件， ＭＰＣ的收率可达７８％ ，选择性为９８％ 。另外对ＭＰＣ与甲醛缩合合成二苯甲烷二氨基甲酸甲酯（ＭＤＣ）进行了研究， 确定了以硫酸为催化剂时适宜的反应条件， 并制备出对该缩合反应具有一定活性的固体催化剂。更多还原

【Abstract】 Clean synthesis processes were studied for catalytic syntheses of methyl pheneyl carbamate (MPC)by reaction of dimethyl carbonate with aniline and of methylene diphenyl dicarbamate(MDC)by MPC with formaldehyde.On the basis of studying Zn(OAc) 2 homogeneous catalyst,the effects of both supports,such as AC,Al 2O 3,SiO 2,MgO,HZSM 5 and reaction conditions on MPC synthesis reaction were investigated.Solid Zn(OAc) 2/AC( α Al 2O 3)catalysts with high catalytic performance were developed for the first time,and the selectivity and yield of MPC was 98% and 78%,respectively.The optimum conditions(temperature, n (MPC)/ n (HCHO)ratio,acid strength,reaction time et al.)were obtained over H 2SO 4 catalyst for condensation of MPC with HCHO to MDC.更多还原