4.6 Article

Novel MCM-41 Supported Dicationic Imidazolium Ionic Liquids Catalyzed Greener and Efficient Regioselective Synthesis of 2-Oxazolidinones from Aziridines and Carbon Dioxide

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MOLECULES
卷 28, 期 1, 页码 -

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MDPI
DOI: 10.3390/molecules28010242

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supported ionic liquid; CO2 conversion; aziridines; 2-oxazolidinones; sustainability

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A type of MCM-41 supported dicationic imidazolium ionic liquid nanocatalyst has been synthesized for the efficient synthesis of 2-oxazolidinones through the conversion of CO2 with aziridines. The use of the novel supported ionic liquid catalyst MCM-41@ILLaCl4 in this reaction system offers advantages such as easy workup, high yields, short reaction time, and purification without column chromatography. The protocol shows promise for industrial applications.
A type of MCM-41 supported dicationic imidazolium ionic liquid nanocatalyst has been synthesized and found to be competent for the synthesis of 2-oxazolidinones through the sustainable chemical conversion of CO2 with aziridines. It was shown that the highest efficiency was achieved in the cycloaddition of a series of aziridines and CO2 in the presence of a catalytic amount of the solid catalyst MCM-41@ILLaCl4 under mild conditions. Merits of this meticulously designed protocol are the use of a novel supported ionic liquid catalyst, the easy work-up process, good to excellent yields, a short reaction time, and purification without column chromatography. Overall, the present protocol of synthesizing 2-oxazolidinones under cocatalyst- and solvent-free conditions using MCM-41@ILLaCl4 is promising for industrial applications.

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