“…Glycerol carbonate (GC) is a highly valuable product derived from glycerol, considered a “green chemistry” product due to its numerous benefits in various fields. ,– The transesterification of glycerol with alkyl or cyclic carbonates is a useful method for producing GC. Among these methods, the reaction of glycerol with dimethyl carbonate is commonly used. ,, As an alternative, the reaction with ethylene carbonate (EC) offers high substrate reactivity, producing valuable byproducts like ethylene glycol. ,– To maximize product concentration, conversion, productivity, and atom efficiency, and to minimize excess carbonate, solvent waste, and subproduct formation (high selectivity), careful catalyst design and reaction medium engineering are necessary. ,– In particular, reaction medium engineering is crucial to minimize solvent usage and maximize product concentration during GC production. , The thermomorphic properties of the ethylene carbonate-glycerol mixture offer an advantage since the mixture transitions from monophasic to biphasic systems depending on the temperature. To perform this process in the biphasic regime, which takes place below 76 °C, requires cosolvents that can dissolve both substrates, as widely reported in the literature, employing both chemical – and biological catalysis. ,,– Enzyme catalysis has been explored in these cosolvent-based monophasic systems at temperatures under 76 °C but, mainly, the researchers employed dimethyl carbonate as a reagent. ,,– This approach proceeds with long reaction times (>24 h) and produces only moderate concentrations of GC (<1 M).…”