Coupling reaction of dimethyl succinate and ethylene carbonate using organotin catalyst

TANG Wenqiang; LIU Shaoying; BAI Yuansheng; YAO Jie; ZHANG Hua; WANG Gongying

doi:10.11949/j.issn.0438-1157.20160297

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Coupling reaction of dimethyl succinate and ethylene carbonate using organotin catalyst

更新时间：2025-11-26

- Coupling reaction of dimethyl succinate and ethylene carbonate using organotin catalyst
- CIESC Journal Vol. 67, Issue 10, Pages: 4187-4195(2016)
- 作者机构：
  
  1. 中国科学院成都有机化学研究所,四川,成都,610041
  2. 中国科学院大学,北京,100049
  3. 中国科学院成都有机化学有限公司,四川,成都,610041
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20160297
  CLC： 631.5
- Online First：05 October 2016，
  
  Published：05 October 2016
- 稿件说明：
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TANG Wenqiang, LIU Shaoying, BAI Yuansheng, et al. Coupling reaction of dimethyl succinate and ethylene carbonate using organotin catalyst[J]. CIESC Journal, 2016, 67(10): 4187-4195.
DOI：

TANG Wenqiang, LIU Shaoying, BAI Yuansheng, et al. Coupling reaction of dimethyl succinate and ethylene carbonate using organotin catalyst[J]. CIESC Journal, 2016, 67(10): 4187-4195. DOI： 10.11949/j.issn.0438-1157.20160297.

摘要

以含有不同取代基的有机锡化合物为催化剂，通过碳酸乙烯酯（EC）与丁二酸二甲酯（DMSu）耦合法制备了聚丁二酸乙二醇酯（PES）和碳酸二甲酯（DMC），并对PES的结构进行了表征。结果表明，有机锡取代基团的电子效应和空间位阻对其催化性能具有很大影响；取代基的吸电子效应越大、空间位阻越小，有机锡的催化活性越高，但若有机锡中存在B酸中心时则容易引起副反应，导致产物选择性差。综合考虑，Bu2SnO的催化性能最好，最优反应条件下，DMC的收率可达到70.08%，PES的特性黏数可达到0.622 dl·g-1。

Abstract

A simple and ecient route for simultaneously synthesis of poly(ethylene succinate) (PES) and dimethyl carbonate (DMC) from ethylene carbonate (EC) and dimethyl succinate (DMSu) has been demonstrated in the presence of organotin catalyst. The effect of reaction parameters such as catalyst dosage

n(EC)/n(DMSu)

reaction time

etc

on synthesis of PES and DMC was investigated. A reaction mechanism has been discussed with organotin catalyst. The results showed that Bu2SnO exhibited higher activity when the reaction time

catalyst dosage

n(EC)/n(DMSu)

reaction temperature were 4 h

0.75%(mol)

1 and 230℃

respectively in the standard atmosphere pre-polymerization step

and reaction pressure and reaction temperature were ≤ 400 Pa and 210℃

respectively in the vacuum condensation step. The DMC yield was up to 70.08% and the intrinsic viscosity of PES was up to 0.622 dl·g-1.

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