Efficient and sustainable fixation of CO₂ into 2-oxazolidinones utilizing ionic liquid functionalized SiO₂ nanocomposites.

ABSTRACT: Chemical fixation of CO₂ into 2-oxazolidinones is of significance because of the important application in the chemical synthesis. In this study, a series of ionic liquid functionalized SiO₂ nanocomposites were synthesized and developed as heterogeneous catalysts for the CO₂ cyclization reaction. The resulting SiO₂-MILZrCl₅ behaved as high-efficiency heterogeneous catalyst for solvent-additive-free CO₂ cyclization at 70 °C and 0.1 MPa CO₂. A high yield of 93% with selectivity of 99.4% over 5-methyl-3-phenyloxazolidin-2-one was attained. Furthermore, a wide range of epoxides were transformed with high yields and excellent selectivities under atmospheric pressure. Additionally, SiO₂-MILZrCl₅ cou

SUBMITTER: Hu Y 

PROVIDER: S-EPMC12481948 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature