Sodium Methoxide Catalysed One-Pot Glycidol Synthesis via Trans-Esterification between Glycerol and Dimethyl Carbonate

Autor: Elrasheed Elhaj, Huajun Wang, Enaam A. Al-Harthi, Waseem A. Wani, Sahar Sallam, Nasser Zouli, Mohd Imran
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: Catalysts, Vol 13, Iss 5, p 809 (2023)
Druh dokumentu: article
ISSN: 2073-4344
DOI: 10.3390/catal13050809
Popis: In this work we demonstrate one-pot glycidol synthesis, via trans-esterification between glycerol and dimethyl carbonate, by making use of commercially available sodium methoxide as a catalyst. An excellent glycerol conversion (99%) and remarkable glycidol yield (75%) was obtained using dimethyl carbonate/glycerol (molar ratio 2:1) in the presence of 3 wt% catalyst amount (with respect to glycerol weight) at 85 °C for a reaction time of 120 min. Sodium methoxide was recycled and reused twice with only a slight decrease in glycerol conversion. The water content of the glycerol reached 2.5 wt%; this did not reduce the glycerol conversion efficiency of the catalyst. A plausible mechanism for the trans-esterification involved in the preparation of glycidol was proposed.
Databáze: Directory of Open Access Journals
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