Recent progress of catalysts for synthesis of cyclic carbonates from CO2 and epoxides

Journal of CO2 Utilization, Journal Year: 2022, Volume and Issue: 68, P. 102355 - 102355

Published: Dec. 21, 2022

With the continuous emission of greenhouse gases, rational transformation and utilization CO2 is particularly important. Cyclic carbonates are a kind versatile compounds have wide applications in Li-ion batteries, pharmaceutical manufacturing many fine chemicals. Cycloaddition epoxide to synthesize cyclic considered one most promising conversion routes because its 100% atomic economy, non-toxicity, as well more economic technical route for CO2. In this paper, review surveys synthesis employing building block. The mechanisms activation been described detail due thermodynamic stability molecule. reaction mechanism expounded, seven methods summarized compared, deeply analyzing research progress recent years. To reduce energy conversion, catalysts very crucial. Various types suitable derived from expounded depth. Finally, development trend prospected. improved strongly demanded successful commercialization technologies. This enables researchers timely seize current advancements thus may provide some rewarding insights future investigations on feedstock. It will good reference guide scholars achieve better improvements.

Language: Английский

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Organocatalytic Polymers from Affordable and Readily Available Building Blocks for the Cycloaddition of CO₂ to Epoxides

The Journal of Organic Chemistry, Journal Year: 2023, Volume and Issue: 88(8), P. 4894 - 4924

Published: Jan. 24, 2023

The catalytic cycloaddition of CO2 to epoxides afford cyclic carbonates as useful monomers, intermediates, solvents, and additives is a continuously growing field investigation way carry out the atom-economic conversion value-added products. Metal-free organocatalytic compounds are attractive systems among various catalysts for such transformations because they inexpensive, nontoxic, readily available. Herein, we highlight discuss key advances in development polymer-based materials that match these requirements affordability availability by considering their synthetic routes, supports employed. discussion organized according number (monofunctional versus bifunctional materials) type catalytically active moieties, including both halide-based halide-free systems. Two general approaches identified based on postsynthetic functionalization polymeric or copolymerization monomers bearing moieties. After review material syntheses activities, chemical structural features affecting performance discussed. Based analysis, some strategies future design affordable available organocatalysts with enhanced activity under mild conditions considered.

Language: Английский

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Catalytic conversion of CO2 using carbon nitride-based catalysts: Recent advances, opportunities, and challenges

Coordination Chemistry Reviews, Journal Year: 2024, Volume and Issue: 511, P. 215831 - 215831

Published: April 16, 2024

Language: Английский

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Synergistic effects of core–shell poly(ionic liquids)@ZIF-8 nanocomposites for enhancing additive-free CO2 conversion

Journal of Colloid and Interface Science, Journal Year: 2024, Volume and Issue: 661, P. 1000 - 1010

Published: Feb. 6, 2024

Language: Английский

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Synthesis of Bifunctional Catalysts for the Cycloaddition of CO₂ to Epoxides through an Epoxide‐Driven Strategy

ChemCatChem, Journal Year: 2024, Volume and Issue: 16(10)

Published: Feb. 8, 2024

Abstract The design of molecular scaffolds bearing multiple functional groups for the activation and ring‐opening epoxides is a crucial challenge synthesis efficient homogeneous heterogeneous catalysts that are used cycloaddition reaction CO 2 to epoxides. Traditional approaches prepare such multifunctional often imply multistep synthetic procedures expensive building blocks. In this work we show bifunctional Lewis acid metal quaternary ammonium halide group can be prepared in just two steps starting from an opportunely designed epoxide precursor by using inexpensive substrates. Such readily accessible catalyst was applied series under atmospheric conditions generally leading quantitative substrate conversion high carbonate selectivities. Importantly, also epoxide‐driven concept developed preparation catalyst, could recyclable systems target reaction.

Language: Английский

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Catalytic Strategies for the Cycloaddition of CO2 to Epoxides in Aqueous Media to Enhance the Activity and Recyclability of Molecular Organocatalysts

Molecules, Journal Year: 2024, Volume and Issue: 29(10), P. 2307 - 2307

Published: May 14, 2024

The cycloaddition of CO2 to epoxides afford versatile and useful cyclic carbonate compounds is a highly investigated method for the nonreductive upcycling CO2. One main focuses current research in this area discovery readily available, sustainable, inexpensive catalysts, catalytic methodologies that allow their seamless solvent-free recycling. Water, often regarded as an undesirable pollutant process, progressively emerging helpful reaction component. On one hand, it serves hydrogen bond donor (HBD) enhance performance ionic compounds; on other aqueous media development diverse protocols can boost or ease recycling molecular catalysts. An overview advances use biphasic systems provided work along with recommendations possible future developments.

Language: Английский

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From epoxides and carbon dioxide to polycarbonates: synthesis, properties and applications

Russian Chemical Reviews, Journal Year: 2024, Volume and Issue: 93(2), P. RCR5112 - RCR5112

Published: Jan. 16, 2024

Carbon dioxide (CO₂) plays a vital role in organic and polymer chemistry as source of cheap available raw material for the synthesis many valuable products, including materials with specified set properties, solvent chemical reactions. This review is devoted to synthesis, properties applications polycarbonates obtained by copolymerization CO₂ epoxides, hot topic that has aroused great interest among scientific community industry representatives. The existing data on catalytic systems used are analyzed summarized, depolymerization polycarbonates, which key aspect recycling, discussed, information systematized, prospects development this area considered.<br> Bibliography — 438 references.

Language: Английский

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High toxicity of amino acid-based deep eutectic solvents

Journal of Molecular Liquids, Journal Year: 2022, Volume and Issue: 370, P. 121044 - 121044

Published: Dec. 10, 2022

Language: Английский

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Alumina-Based Bifunctional Catalyst for Efficient CO₂ Fixation into Epoxides at Atmospheric Pressure

Inorganic Chemistry, Journal Year: 2022, Volume and Issue: 61(41), P. 16356 - 16369

Published: Oct. 4, 2022

The quest toward sustainability and decarbonization demands the development of methods for efficient carbon dioxide capture utilization. nonreductive CO2 fixation into epoxides to prepare cyclic carbonates has gained attention in recent years. In this work, we report guanidine hydrochloride-functionalized γ alumina (γ-Al2O3), prepared using green solvents, as an bifunctional catalyst fixation. resulting guanidine-grafted γ-Al2O3 (Al-Gh) proved be excellent from with high selectivity. nitrogen-rich Al-Gh shows increased adsorption capacity compared that γ-Al2O3. as-prepared was able carry out at 85 °C under atmospheric pressure absence solvents external additives (e.g., TBAI or KI). material showed negligible loss catalytic activity even after five cycles catalysis. successfully converted many their respective optimized conditions. gram-scale synthesis commercially important styrene oxide also achieved. Density functional theory (DFT) calculations revealed role activating epoxide. This activation facilitated chloride ion open ring react CO2. DFT studies validated stabilizing electron-rich intermediates during course reaction.

Language: Английский

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Selective oxidation of benzyl alcohols by silica‐supported heterogeneous catalyst containing dioxidotungsten(VI) core

Applied Organometallic Chemistry, Journal Year: 2022, Volume and Issue: 37(2)

Published: Oct. 22, 2022

A dioxidotungsten(VI) complex, [WO 2 L(CH 3 OH)]·0.5(CH OH) ( 1 ), was prepared by the reaction of WCl 6 and tridentate ONO‐donor Schiff base ligand H L ) that obtained from 2‐hydroxy‐1‐naphthaldehyde with 4‐aminobenzoic hydrazide. Both were characterized various analyses including nuclear magnetic resonance (NMR), Fourier transform infrared spectroscopy (FT‐IR) UV–Vis spectroscopy, elemental analysis. Single crystal X‐ray analysis used to determine structure which revealed there is a free ‐NH group in its structure. Therefore, heterogeneous catalyst supporting on propionyl chloride‐functionalized silica gel. The synthesized supported Si‐W diffuse reflectance (DRS), thermogravimetric (TGA), FT‐IR, scanning electron microscope (SEM), photoelectron (XPS), energy‐dispersive (EDS), powder diffraction (XRD) analyses. utilized oxidation benzyl alcohol derivatives O under reflux condition at air atmosphere. effects concentration oxidant, temperature, nature solvent catalytic performance resulting compound investigated results indicated they have considerable effect activity selectivity . recovered several times reused for reaction. FT‐IR SEM, TGA, EDS, XRD are no differences between fresh one. show complex active stable benzylic alcohols depends condition.

Language: Английский

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