Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130593 - 130593
Опубликована: Фев. 1, 2025
Язык: Английский
Materials Chemistry and Physics, Год журнала: 2025, Номер unknown, С. 130593 - 130593
Опубликована: Фев. 1, 2025
Язык: Английский
Journal of CO2 Utilization, Год журнала: 2022, Номер 68, С. 102355 - 102355
Опубликована: Дек. 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.
Язык: Английский
Процитировано
127The Journal of Organic Chemistry, Год журнала: 2023, Номер 88(8), С. 4894 - 4924
Опубликована: Янв. 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.
Язык: Английский
Процитировано
38Journal of Colloid and Interface Science, Год журнала: 2024, Номер 661, С. 1000 - 1010
Опубликована: Фев. 6, 2024
Язык: Английский
Процитировано
17Coordination Chemistry Reviews, Год журнала: 2024, Номер 511, С. 215831 - 215831
Опубликована: Апрель 16, 2024
Язык: Английский
Процитировано
17ChemCatChem, Год журнала: 2024, Номер 16(10)
Опубликована: Фев. 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.
Язык: Английский
Процитировано
9Russian Chemical Reviews, Год журнала: 2024, Номер 93(2), С. RCR5112 - RCR5112
Опубликована: Янв. 16, 2024
Carbon dioxide (CO<sub>2</sub>) 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 CO<sub>2</sub> 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.
Язык: Английский
Процитировано
8Molecules, Год журнала: 2024, Номер 29(10), С. 2307 - 2307
Опубликована: Май 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.
Язык: Английский
Процитировано
8Journal of Molecular Liquids, Год журнала: 2022, Номер 370, С. 121044 - 121044
Опубликована: Дек. 10, 2022
Язык: Английский
Процитировано
27Applied Organometallic Chemistry, Год журнала: 2022, Номер 37(2)
Опубликована: Окт. 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.
Язык: Английский
Процитировано
24Journal of Materials Chemistry A, Год журнала: 2023, Номер 11(14), С. 7735 - 7745
Опубликована: Янв. 1, 2023
Modulating the structure and coordination environment can effectively improve CO 2 RR activity selectivity of single atom copper catalysts.
Язык: Английский
Процитировано
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