Diethylammonium iodide as catalyst for the metal-free synthesis of 5-aryl-2-oxazolidinones from aziridines and carbon dioxide

A series of 5-aryl-2-oxazolidinones was efficiently obtained from aziridine precursors with smallN-alkyl substituentsviaCO₂fixation under ideal experimental conditions, using a simple ammonium salt as catalyst.