Direct coupling of CO₂ with epoxides catalyzed by lanthanum(III) supported on magnetic mesoporous organosilica nanoparticles.

ABSTRACT: Lanthanum(III) supported on the magnetic mesoporous organosilica nanoparticle (La@MON) has been described as an efficient, simple, and durable heterogeneous catalyst for the synthesis of 5-membered cyclic carbonates from carbon dioxide (CO₂) and epoxides. Under optimized reaction conditions, various terminal epoxides have been converted to the corresponding carbonates in the presence of 0.3 mol% La@MON and 0.5 mol% tetrabutylammonium iodide (TBAI) as co-catalyst at relatively mild reaction conditions. It was also found that La@MON catalysts had significantly higher catalytic activity than some selected reference catalysts, which can be explained by the abundance of lanthanum(III) species acting as Lewis acidic sites for activating both carbon dioxide and epoxide molecules, along

SUBMITTER: Hoseini KS 

PROVIDER: S-EPMC10073222 | biostudies-literature | 2023 Apr

REPOSITORIES: biostudies-literature