Influence of Solvent on Reaction Path to Synthesis of Methyl N-Phenyl Carbamate from Aniline, CO_2 and Methanol  

溶剂对苯胺、CO_2和甲醇合成MPC反应路径的影响(英文)

作　　者：安华良 张丽丽 苑保国 赵新强 王延吉 

机构地区：[1]Hebei Provincial Key Lab of Green Chemical Technology and Efficient Energy Saving, Hebei University of Technology

出　　处：《Chinese Journal of Chemical Engineering》2014年第5期607-610,共4页中国化学工程学报（英文版）

基　　金：Supported by the National Natural Science Foundation of China(20976035);the Natural Science Foundation of Tianjin City(12JCYBJC12800);the Key Basic Research Project of Applied Basic Research Plan of Hebei Province(12965642D)

摘　　要：Methyl N-phenyl carbamate(MPC), an important organic chemical, can be synthesized from aniline,CO2 and methanol. Catalyst Cu-Fe/ZrO2-SiO2 was first prepared and its catalytic performance for MPC synthesis was evaluated. Then the influence of solvent on the reaction path of MPC synthesis was investigated. It is found that the reaction intermediate is different with acetonitrile or methanol as a solvent. With acetonitrile as a solvent,the synthesis of MPC follows the reaction path with diphenyl urea as the intermediate, while with methanol as a solvent the reaction occurs via the reaction path with dimethyl carbonate as the intermediate. The catalytic mechanism of cooperative catalysis comprising metal sites, Lewis acid sites and Lewis base sites is proposed according to different reaction intermediates.Methyl N-phenyl carbamate （MPC）, an important organic chemical, can be synthesized from aniline, CO2 and methanol. Catalyst Cu-Fe/ZrO2-SiO2 was first prepared and its catalytic performance for MPC synthesis was evaluated. Then the influence of solvent on the reaction path of MPC synthesis was investigated. It is found that the reaction intermediate is different with acetonitrile or methanol as a solvent. With acetonitrile as a solvent, the synthesis of MPC follows the reaction path with diphenyl urea as the intermediate, while with methanol as a solvent the reaction occurs via the reaction path with dimethyl carbonate as the intermediate. The catalytic mecha-nism of cooperative catalysis comprising metal sites, Lewis acid sites and Lewis base sites is proposed according to different reaction intermediates.

关 键 词：reaction path methyl N-phenyl carbamate CO2 ANILINE METHANOL Cu-Fe/ZrO2-SiO2 catalyst 

分 类 号：TQ245.24[化学工程—有机化工]