2018
DOI: 10.1039/c8cy00749g
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Cycloaddition of carbon dioxide to epoxides catalysed by supported ionic liquids

Abstract: Simple hybrid silica-imidazolium based ILs as highly active and selective catalysts for the carbonation of epoxides in batch and continuous flow systems under mild reaction conditions.

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Cited by 50 publications
(30 citation statements)
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“…In 2018, Dupont et al created silica based ionic liquid materials, termed as silica-supported ionic liquid phase catalysts. 154 Using the most active catalysts developed, 99% conversion of propylene oxide into propylene carbonate was reported and the catalyst could be recycled up to five times. However, rather harsh reaction conditions were required (5 bar of carbon dioxide at 150 o C for 30 mins) considering that propylene oxide is one of the easiest epoxides to ring-open.…”
Section: Sugar-supported Systemsmentioning
confidence: 99%
“…In 2018, Dupont et al created silica based ionic liquid materials, termed as silica-supported ionic liquid phase catalysts. 154 Using the most active catalysts developed, 99% conversion of propylene oxide into propylene carbonate was reported and the catalyst could be recycled up to five times. However, rather harsh reaction conditions were required (5 bar of carbon dioxide at 150 o C for 30 mins) considering that propylene oxide is one of the easiest epoxides to ring-open.…”
Section: Sugar-supported Systemsmentioning
confidence: 99%
“…Moreover, cyclic carbonates have received extensive attention as solvents in Li-ion batteries, as monomers forp olymer synthesis, and their utility in the productiono fp olyurethanes, chemical products, and fuel additives. [28][29][30][31][32][33][34][35][36][37] In the liquid-phase reactions, leaching of the IL reduces the reactivity and stability of the material. [26,27] Over the past decades, many supported IL-phase( SILP) heterogeneousc atalysts with silicag els, SiO 2 / Al 2 O 3 ,a ctivated carbon,T iO 2 ,a nd mesoporous silica as porous support materials have been reported for various catalytic reactions.…”
Section: Introductionmentioning
confidence: 99%
“…[26,27] Over the past decades, many supported IL-phase( SILP) heterogeneousc atalysts with silicag els, SiO 2 / Al 2 O 3 ,a ctivated carbon,T iO 2 ,a nd mesoporous silica as porous support materials have been reported for various catalytic reactions. [28][29][30][31][32][33][34][35][36][37] In the liquid-phase reactions, leaching of the IL reduces the reactivity and stability of the material. Therefore, several approaches have been established for the synthesis of efficient IL-based poroush eterogeneousc atalysts.…”
Section: Introductionmentioning
confidence: 99%
“…The chemical environments of Si atoms are associated with unreacted Si-C bonds and the T 2 and T 3 species that conrm the presence of unchanged triazolium ILs in SILP1-3 (Tables S1 and S2 †). 41 FT-IR spectra show two characteristic peaks, at 1458 cm À1 and 1570 cm À1 , associated with the stretching frequencies of the triazolium ring, 42 and a sharp peak at 1190 cm À1 related to n as (Si-O-Si) L,T , which conrms the silica matrix functionalisation (Fig. S2 †).…”
Section: Resultsmentioning
confidence: 99%