低压下碱金属碳酸盐催化一步法合成碳酸二甲酯（英文）  

Low pressure one-pot synthesis of dimethyl carbonate catalyzed by an alkali carbonate

作　　者：刘春[1] 张绍科 蔡宝仪 金子林[1] 

机构地区：[1]大连理工大学精细化工国家重点实验室,辽宁大连116024

出　　处：《催化学报》2015年第7期1136-1141,共6页

基　　金：supported by the Fundamental Research Funds for the Central Universities(DUT15ZD107)~~

摘　　要：报道了低压下碱金属碳酸盐催化环氧化物、CO2和甲醇一步合成碳酸二甲酯(DMC)的方法,系统考察了反应条件对一步合成DMC的影响规律.在最优反应条件下(初始压力0.5 MPa,反应温度120°C,碳酸钠7.5 mol%),以环氧乙烷为起始剂的DMC收率达到63.5%.提出了碱金属碳酸盐催化一步法合成DMC的可能反应机理.A mild and efficient protocol for the alkali carbonate-catalyzed one-pot synthesis of dimethyl carbonate（DMC） from epoxide, CO2 and methanol was developed. The reaction conditions for the one-pot synthesis of DMC were investigated. Under the optimized conditions of initial pressure 0.5 MPa, 120℃ and catalyst loading of 7.5 mol%, 63.5% yield of DMC was achieved using ethylene oxide as the starting material. A mechanism for the catalysis by the alkali carbonate was proposed.

关 键 词：碳酸二甲酯 环氧化物 碱金属碳酸盐 一步法 低压 

分 类 号：O623.662[理学—有机化学]