Zn(OAc)_2·2H_2O催化苯酚和草酸二甲酯酯交换合成草酸二苯酯  

Transesterification of Dimethyl Oxalate with Phenol to Diphenyl Oxalate Catalyzed by Zn(OAc)_2·2H_2O

作　　者：王胜平[1] 马新宾[1] 郭宏利[1] 李振花[1] 王保伟[1] 许根慧[1] 

机构地区：[1]天津大学化工学院一碳化学与化工国家重点实验室,天津300072

出　　处：《化学通报》2002年第7期476-481,共6页Chemistry

基　　金：高等学校骨干教师资助计划与云南省省院省校合作项目 (0 0YT0 3)

摘　　要：研究了以Zn(OAc) 2 ·2H2 O为催化剂时苯酚和草酸二甲酯酯交换合成草酸二苯酯的反应。采用气相色谱 质谱联用仪对主、副产物进行了定性 ,确定了中间产物甲基苯基草酸酯 ,并对反应过程的模式进行了探讨。考察了催化剂的催化性能及影响反应的因素。采用XRD技术对催化剂进行了表征 。Diphenyl oxalate was prepared by transesterification of dimethyl oxalate with phenol over Zn(OAc) 2·2H 2O catalyst.The main product and by products were qualitatively analyzed by GC/MS.The production of methyl phenyl oxalate proved that the synthesis of diphenyl oxalate from transesterification of phenol with dimethyl oxalate followed 2 step reaction module.The activity of catalyst and the influence of various operating parameters on the reaction were evaluated.The characterization of catalyst was carried out by XRD and the reason for deactivation of catalyst was investigated.

关 键 词：Zn(OAc)2·2H2O 苯酚 草酸二甲酯 合成 碳酸二苯酯 草酸二苯酯 酯交换 失活 催化剂 催化性能 醋酸锌 

分 类 号：O625[理学—有机化学]