Abstract Click to copy section linkSection link copied! Ethyl methyl carbonate (EMC) is the most extensively used solvent in lithium-ion battery electrolytes. In recent years, the technology for producing EMC through the highly atom-economical transesterification of dimethyl carbonate and diethyl carbonate has garnered widespread attention. However, the commonly used sodium alkoxide basic catalysts exhibit poor catalytic activity due to their insolubility in this nonpolar reaction system.