催化学报 ›› 2015, Vol. 36 ›› Issue (7): 1136-1141.DOI: 10.1016/S1872-2067(14)60309-0

• 论文 • 上一篇    下一篇

低压下碱金属碳酸盐催化一步法合成碳酸二甲酯

刘春, 张绍科, 蔡宝仪, 金子林   

  1. 大连理工大学精细化工国家重点实验室, 辽宁大连116024
  • 收稿日期:2015-01-07 修回日期:2015-01-29 出版日期:2015-06-12 发布日期:2015-07-30
  • 通讯作者: 刘春 电话: (0411)84986182; 电子信箱: cliu@dlut.edu.cn
  • 基金资助:

    中央高校基本科研业务费专项资金.

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

Chun Liu, Shaoke Zhang, Baoyi Cai, Zilin Jin   

  1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116024, Liaoning, China
  • Received:2015-01-07 Revised:2015-01-29 Online:2015-06-12 Published:2015-07-30
  • Supported by:

    This work was 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 ℃, 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.

关键词: 碳酸二甲酯, 环氧化物, 碱金属碳酸盐, 一步法, 低压

Abstract:

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.

Key words: Dimethyl carbonate, Epoxide, Alkali carbonate, One-pot synthesis, Low pressure