Overall
- Language
- English
- Conflict of Interest
- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received September 23, 2025
Revised October 20, 2025
Accepted October 23, 2025
Available online January 26, 2026
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
Most Cited
Optimization of a Recyclable Sodium-Based Heterogeneous Catalyst for Efficient DMC Synthesis Under Mild Conditions
https://doi.org/10.1007/s11814-025-00592-0
Abstract
Dimethyl carbonate (DMC) is a green chemical with wide industrial applications. It is necessary to develop a method
to produce DMC safely, eco-friendly, and economically. In this work, DMC was synthesized via transesterification of
ethylene carbonate (EC) and methanol (MeOH) using a heterogeneous base catalyst combining sodium aluminate and
cyanoguanidine (SC catalyst). Among the series, the optimized sodium aluminate–cyanoguanidine catalyst (denoted as
SC-2, NaAlO2/cyanoguanidine weight ratio = 3:4) exhibited the highest activity, achieving a 73% DMC yield, which outperformed
sodium aluminate (25%) and sodium carbonate (46%). This enhanced performance is attributed to synergistic
effects that arise from structural and basicity enhancements. Under optimized conditions (40 ℃, 2 h, 0.5 wt% catalyst,
EC: MeOH = 1:8), SC-2 achieved an 85% yield and demonstrated excellent reusability, with less than 20% yield loss over
five cycles.
