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Zeitschriftenartikel zum Thema „Cycloaddition du CO2“

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Veröffentlicht am 23. November 2024

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1

Krompiec, Stanisław, Aneta Kurpanik-Wójcik, Marek Matussek, Bogumiła Gołek, Angelika Mieszczanin, and Aleksandra Fijołek. "Diels–Alder Cycloaddition with CO, CO2, SO2, or N2 Extrusion: A Powerful Tool for Material Chemistry." Materials 15, no. 1 (2021): 172. http://dx.doi.org/10.3390/ma15010172.

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Phenyl, naphthyl, polyarylphenyl, coronene, and other aromatic and polyaromatic moieties primarily influence the final materials’ properties. One of the synthetic tools used to implement (hetero)aromatic moieties into final structures is Diels–Alder cycloaddition (DAC), typically combined with Scholl dehydrocondensation. Substituted 2-pyranones, 1,1-dioxothiophenes, and, especially, 1,3-cyclopentadienones are valuable substrates for [4 + 2] cycloaddition, leading to multisubstituted derivatives of benzene, naphthalene, and other aromatics. Cycloadditions of dienes can be carried out with extru

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2

Lin, Yi-Feng, Yu-Rou Lai, Hsiang-Ling Sung, Tsair-Wang Chung, and Kun-Yi Andrew Lin. "Design of Amine-Modified Zr–Mg Mixed Oxide Aerogel Nanoarchitectonics with Dual Lewis Acidic and Basic Sites for CO2/Propylene Oxide Cycloaddition Reactions." Nanomaterials 12, no. 19 (2022): 3442. http://dx.doi.org/10.3390/nano12193442.

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The utilization of CO2 attracts much research attention because of global warming. The CO2/epoxide cycloaddition reaction is one technique of CO2 utilization. However, homogeneous catalysts with both Lewis acidic and basic and toxic solvents, such as DMF, are needed in the CO2/epoxide cycloaddition reaction. As a result, this study focuses on the development of heterogeneous catalysts with both Lewis acidic and basic sites for the CO2 utilization of the CO2/epoxide cycloaddition reactions without the addition of a DMF toxic solvent. For the first time, the Zr–Mg mixed oxide aerogels with Lewis

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Gao, Jie, Chengguang Yue, Hao Wang, et al. "CeO2-ZrO2 Solid Solution Catalyzed and Moderate Acidic–Basic Sites Dominated Cycloaddition of CO2 with Epoxides: Halogen-Free Synthesis of Cyclic Carbonates." Catalysts 12, no. 6 (2022): 632. http://dx.doi.org/10.3390/catal12060632.

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For the production of cyclic carbonates from the cycloaddition of CO2 with epoxides, halogen pollution and product purity are two of the most common problems due to the usage of homogeneous halogen-containing catalysts such as ammonium salt and alkali metal halide. Hence, the development of a novel, halogen-free and efficient catalyst for the synthesis of high-purity cyclic carbonates is significant. Here, a series of acid–base bifunctional Ce1-xZrxO2 nanorods were successfully prepared. The Ce1-xZrxO2 nanorods could catalyze the cycloaddition of CO2 with epoxides efficiently without any halog

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Noh, Jinmi, Dasom Kim, Jihyun Lee, et al. "Three Component Controls in Pillared Metal-Organic Frameworks for Catalytic Carbon Dioxide Fixation." Catalysts 8, no. 11 (2018): 565. http://dx.doi.org/10.3390/catal8110565.

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Three components of pillared metal-organic frameworks (MOFs, three components = metal ion, carboxylic acid ligand, and N-chelating ligand) were controlled for CO2 cycloaddition catalysts to synthesize organic cyclic carbonates. Among the divalent metals, Zn2+ showed the best catalytic activity, and in DABCO (1,4-diazabicyclo[2.2.2]octane)-based MOFs, hydroxy-functionalized DMOF-OH was the most efficient MOF for CO2 cycloaddition. For the BPY (4,4’-bipyridyl)-type MOFs, all five prepared BMOFs (BPY MOFs) showed similar and good conversions for CO2 cycloaddition. Finally, this pillared MOF could

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Shang, Shu, Wei Shao, Xiao Luo, et al. "Facet Engineering in Constructing Lewis Acid-Base Pairs for CO₂ Cycloaddition to High Value-Added Carbonates." Research 2022 (October 15, 2022): 1–9. http://dx.doi.org/10.34133/2022/9878054.

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Cycloaddition of epoxides with CO2 to synthesis cyclic carbonates is an atom-economic pathway for CO2 utilization with promising industry application value, while its efficiency was greatly inhibited for the lack of highly active catalytic sites. Herein, by taking BiOX (X=Cl, Br) with layered structure for example, we proposed a facet engineering strategy to construct Lewis acid-base pairs for CO2 cycloaddition, where the typical BiOBr with (010) facets expose surface Lewis acid Bi sites and Lewis base Br sites simultaneously. By the combination of in-situ diffuse reflectance infrared Fourier

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Kiatkittipong, Kunlanan, Muhammad Amirul Amin Mohamad Shukri, Worapon Kiatkittipong, et al. "Green Pathway in Utilizing CO2 via Cycloaddition Reaction with Epoxide—A Mini Review." Processes 8, no. 5 (2020): 548. http://dx.doi.org/10.3390/pr8050548.

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Carbon dioxide (CO2) has been anticipated as an ideal carbon building block for organic synthesis due to the noble properties of CO2, which are abundant renewable carbon feedstock, non-toxic nature, and contributing to a more sustainable use of resources. Several green and proficient routes have been established for chemical CO2 fixation. Among the prominent routes, this review epitomizes the reactions involving cycloaddition of epoxides with CO2 in producing cyclic carbonate. Cyclic carbonate has been widely used as a polar aprotic solvent, as an electrolyte in Li-ion batteries, and as precur

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Lei, Yizhu, Yali Wan, Wei Zhong, Dingfu Liu, and Zhou Yang. "Phosphonium-Based Porous Ionic Polymer with Hydroxyl Groups: A Bifunctional and Robust Catalyst for Cycloaddition of CO2 into Cyclic Carbonates." Polymers 12, no. 3 (2020): 596. http://dx.doi.org/10.3390/polym12030596.

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The integration of synergic hydrogen bond donors and nucleophilic anions that facilitates the ring-opening of epoxide is an effective way to develop an active catalyst for the cycloaddition of CO2 with epoxides. In this work, a new heterogeneous catalyst for the cycloaddition of epoxides and CO2 into cyclic carbonates based on dual hydroxyls-functionalized polymeric phosphonium bromide (PQPBr-2OH) was presented. Physicochemical characterizations suggested that PQPBr-2OH possessed large surface area, hierarchical pore structure, functional hydroxyl groups, and high density of active sites. Cons

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Shi, Jinghua, Jinliang Song, Jun Ma, Zhaofu Zhang, Honglei Fan, and Buxing Han. "Effective synthesis of cyclic carbonates from CO2 and epoxides catalyzed by KI/cucurbit[6]uril." Pure and Applied Chemistry 85, no. 8 (2013): 1633–41. http://dx.doi.org/10.1351/pac-con-12-10-09.

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The development of efficient, inexpensive, and nontoxic catalysts for cycloaddition of CO2 with epoxides to produce five-membered cyclic carbonates is a very interesting topic. In this work, cycloaddition of CO2 with propylene oxide (PO) to produce propylene carbonate (PC) catalyzed by potassium halides (KCl, KBr, and KI) in the presence of cucurbit[6]uril (CB[6]) was studied at various conditions. It was discovered that the potassium halides and CB[6] had excellent synergetic effect in promoting the reaction, and the KI/CB[6] catalytic system was the most efficient among them. The decrease of

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Tangyen, Niracha, Wuttichai Natongchai, and Valerio D’Elia. "Catalytic Strategies for the Cycloaddition of CO2 to Epoxides in Aqueous Media to Enhance the Activity and Recyclability of Molecular Organocatalysts." Molecules 29, no. 10 (2024): 2307. http://dx.doi.org/10.3390/molecules29102307.

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The cycloaddition of CO2 to epoxides to afford versatile and useful cyclic carbonate compounds is a highly investigated method for the nonreductive upcycling of CO2. One of the main focuses of the current research in this area is the discovery of readily available, sustainable, and inexpensive catalysts, and of catalytic methodologies that allow their seamless solvent-free recycling. Water, often regarded as an undesirable pollutant in the cycloaddition process, is progressively emerging as a helpful reaction component. On the one hand, it serves as an inexpensive hydrogen bond donor (HBD) to

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Bester, Karol, Agnieszka Bukowska, Aleksandra Kawka, Maciej Pytel, and Wiktor Bukowski. "Salophen chromium(iii) complexes functionalized with pyridinium salts as catalysts for carbon dioxide cycloaddition to epoxides." RSC Advances 14, no. 4 (2024): 2466–80. http://dx.doi.org/10.1039/d3ra07750k.

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Novel multifunctional one-component catalysts for the cycloaddition of CO2 to epoxides. The selective and effective conversion of substrates to cyclic carbonates possible using 0.01 mol% catalyst and a low CO2 pressure.

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Cheng, Weiwei, Yun-shan Xue, Xi-Ming Luo, and Yan Xu. "A rare three-dimensional POM-based inorganic metal polymer bonded by CO2 with high catalytic performance for CO2 cycloaddition." Chemical Communications 54, no. 91 (2018): 12808–11. http://dx.doi.org/10.1039/c8cc07041e.

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12

Sengoden, Mani, Gulzar A. Bhat, and Donald J. Darensbourg. "Bifunctional organoboron–phosphonium catalysts for coupling reactions of CO₂ and epoxides." RSC Advances 12, no. 50 (2022): 32440–47. http://dx.doi.org/10.1039/d2ra06358a.

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A series of organoborane phosphonium salts have been shown to be very effective catalysts for the copolymerization of alicyclic epoxides with CO2 or the cycloaddition of aliphatic epoxides and CO2 to afford polycarbonates or cyclic carbonates, respectively.

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13

Cormier, Morgan, Eric Fouquet, and Philippe Hermange. "Expedient synthesis of a symmetric cycloheptyne-Co2(CO)6 complex for orthogonal Huisgen cycloadditions." Organic Chemistry Frontiers 6, no. 8 (2019): 1114–17. http://dx.doi.org/10.1039/c9qo00086k.

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A cycloheptyne dicobalt-carbonyl complex with a terminal alkyne was synthesized by a short procedure, and was able to react selectively in Strain Promoted Alkyne Azide Cycloaddition (SPAAC) or Copper Catalysed Alkyne Azide Cycloaddition (CuAAC) depending on the conditions.

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Gu, Yunjang, Youngson Choe, and Dae-Won Park. "Catalytic Performance of CPM-200-In/Mg in the Cycloaddition of CO2 and Epoxides." Catalysts 11, no. 4 (2021): 430. http://dx.doi.org/10.3390/catal11040430.

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Crystalline porous materials (CPM)-200-In and CPM-200-In/Mg metal-organic frameworks (MOFs) were synthesized by a solvothermal method and were characterized by using powder X-ray diffraction (PXRD), FT-IR, Brunauer–Emmett–Teller (BET), temperature programmed desorption (TPD), TGA, XPS, and SEM-EDS. They were used as heterogeneous catalysts for the cycloaddition of CO2 with epoxides and found to be highly efficient toward the cycloaddition reaction at moderate reaction conditions under solvent-free conditions. The catalyst was easily separated by a simple filtration and can be reused up to five

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Akimana, Emmanuelia, Jichao Wang, Natalya V. Likhanova, Somboon Chaemchuen, and Francis Verpoort. "MIL-101(Cr) for CO2 Conversion into Cyclic Carbonates, Under Solvent and Co-Catalyst Free Mild Reaction Conditions." Catalysts 10, no. 4 (2020): 453. http://dx.doi.org/10.3390/catal10040453.

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Mild reaction conditions (nearly room temperature and atmospheric CO2 pressure) for the cycloaddition of CO2 with epoxides to produce cyclic carbonates were investigated applying MIL-101(Cr) as a catalyst. The MIL-101 catalyst contains strong acid sites, which promote the ring-opening of the epoxide substrate. Moreover, the high surface area, enabling the adsorption of more CO2 (substrate), combined with a large pore size of the catalyst is essential for the catalytic performance. Additionally, epoxide substrates bearing electron-withdrawing substituents or having a low boiling point demonstra

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Yang, Chaokun, Xin Zhao, and Tuantuan Yang. "Boron and Phosphorus Co-Doped Graphitic Carbon Nitride Cooperate with Bu4NBr as Binary Heterogeneous Catalysts for the Cycloaddition of CO2 to Epoxides." Catalysts 12, no. 10 (2022): 1196. http://dx.doi.org/10.3390/catal12101196.

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The development of a cost-effective heterogeneous catalytic system for the cycloaddition reaction of CO2 and epoxides is of great importance. In this manuscript, three kinds of boron and phosphorus co-doping graphitic carbon nitride (BP-CN) were prepared and characterized. Among them, BP-CN-1 displayed the optimal catalytic performance in the presence of Bu4NBr (tetrabutylammonium bromide) for the CO2 cycloaddition with propylene oxide, and 95% propylene carbonate yield was obtained under a 120 °C, 2 MPa, 6 h condition. Moreover, the BP-CN-1/Bu4NBr catalytic system is compatible with various e

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Lin, Xiu-Zhen, Zhen-Zhen Yang, Liang-Nian He, and Zhong-Yong Yuan. "Mesoporous zirconium phosphonates as efficient catalysts for chemical CO2 fixation." Green Chemistry 17, no. 2 (2015): 795–98. http://dx.doi.org/10.1039/c4gc01709a.

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Kolle, Joel M., and Abdelhamid Sayari. "Novel porous organocatalysts for cycloaddition of CO2 and epoxides." RSC Advances 9, no. 42 (2019): 24527–38. http://dx.doi.org/10.1039/c9ra05466a.

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Three classes of organosilicas (DMO, OMOs and PMOs) containing multi-hydroxyl bis-quaternary ammonium iodide were tested in the cycloaddition of CO<sub>2</sub> and epoxides. OMO with two hydroxyl groups was the most active, with good stable and reusability.

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19

An, Changwei, Jun Zhang, and Xianqi Guan. "CO₂ Adsorption Based on Porphyrin Based Porous Organic Polymers." Journal of Physics: Conference Series 2463, no. 1 (2023): 012057. http://dx.doi.org/10.1088/1742-6596/2463/1/012057.

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Abstract In order to efficiently catalyze the cycloaddition reaction of CO2 and epoxy alkanes under mild environment and no catalyst, this paper designed and synthesized two kinds of porphyrin based porous organic polymers—porphyrin based porous organic polymer containing carboxyl group (ppop-cooh) and porphyrin based porous organic polymer containing quaternary ammonium salt ion pair. Quaternary ammonium salt cation anion pair nucleophilic groups and metal active centers were introduced into the polymer by pre- and post-modification respectively. The chemical structure and pore structure of t

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Chen, Ying, Yingjun Li, Hu Wang, Zaifei Chen, and Yi-Zhu Lei. "Facile Construction of Carboxyl-Functionalized Ionic Polymer towards Synergistic Catalytic Cycloaddition of Carbon Dioxide into Cyclic Carbonates." International Journal of Molecular Sciences 23, no. 18 (2022): 10879. http://dx.doi.org/10.3390/ijms231810879.

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The development of bifunctional ionic polymers as heterogeneous catalysts for effective, cocatalyst- and metal-free cycloaddition of carbon dioxide into cyclic carbonates has attracted increasing attention. However, facile fabrication of such polymers having high numbers of ionic active sites, suitable types of hydrogen bond donors (HBDs), and controlled spatial positions of dual active sites remains a challenging task. Herein, imidazolium-based ionic polymers with hydroxyl/carboxyl groups and high ionic density were facilely prepared by a one-pot quaternization reaction. Catalytic evaluation

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Zhang, Wuying, Qian He, Yaju Chen, Rongchang Luo, Xiantai Zhou, and Hongbing Ji. "A metal-free hydroxyl functionalized quaternary phosphine type ionic liquid polymer for cycloaddition of CO₂ and epoxides." Dalton Transactions 51, no. 4 (2022): 1303–7. http://dx.doi.org/10.1039/d1dt03232a.

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Appaturi, Jimmy Nelson, Rajabathar Jothi Ramalingam, Muthu Kumaran Gnanamani, et al. "Review on Carbon Dioxide Utilization for Cycloaddition of Epoxides by Ionic Liquid-Modified Hybrid Catalysts: Effect of Influential Parameters and Mechanisms Insight." Catalysts 11, no. 1 (2020): 4. http://dx.doi.org/10.3390/catal11010004.

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The storage, utilization, and control of the greenhouse (CO2) gas is a topic of interest for researchers in academia and society. The present review article is dedicating to cover the overall role of ionic liquid-modified hybrid materials in cycloaddition reactions. Special emphasis is on the synthesis of various cyclic carbonate using ionic liquid-based modified catalysts. Catalytic activity studies have discussed with respect to process conditions and their effects on conversion and product selectivity for the reaction of cycloaddition of CO2 with styrene oxide. The reaction temperature and

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Kim, Jun, Se-Na Kim, Hoi-Gu Jang, Gon Seo, and Wha-Seung Ahn. "CO2 cycloaddition of styrene oxide over MOF catalysts." Applied Catalysis A: General 453 (February 2013): 175–80. http://dx.doi.org/10.1016/j.apcata.2012.12.018.

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24

Shao, Dan, Jinbiao Shi, Jianling Zhang, et al. "Solvent Impedes CO2 Cycloaddition on Metal-Organic Frameworks." Chemistry - An Asian Journal 13, no. 4 (2018): 386–89. http://dx.doi.org/10.1002/asia.201701706.

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Qaroush, Abdussalam K., Areej K. Hasan, Suhad B. Hammad, et al. "Mechanistic insights on CO₂ utilization using sustainable catalysis." New Journal of Chemistry 45, no. 47 (2021): 22280–88. http://dx.doi.org/10.1039/d1nj04757d.

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Caffeinium halides were used to catalyse the cycloaddition of CO2 to form cyclic carbonates. The reaction intermediates were isolated and characterized experimentally. The reaction mechanism has been confirmed by DFT calculations.

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26

Borah, Rakhimoni, Surabhi Lahkar, Naranarayan Deori, and Sanfaori Brahma. "Synthesis, characterization and application of oxovanadium(iv) complexes with [NNO] donor ligands: X-ray structures of their corresponding dioxovanadium(v) complexes." RSC Advances 12, no. 22 (2022): 13740–48. http://dx.doi.org/10.1039/d2ra01448c.

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Oxovanadium(iv) complexes catalysed CO2 cycloaddition resulting up to 100% conversion of epoxides to cyclic carbonates under relatively benign condition. Transformation of oxovanadium(iv) to dioxovanadium(v) in the process of crystallization.

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Houbben, Maxime, Jean-Michel Thomassin та Christine Jérôme. "Supercritical CO₂ blown poly(ε-caprolactone) covalent adaptable networks towards unprecedented low density shape memory foams". Materials Advances 3, № 6 (2022): 2918–26. http://dx.doi.org/10.1039/d2ma00040g.

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Supercritical CO2 blown foams of poly(ε-caprolactone) (PCL) covalent networks are developed through a two-step strategy by taking advantage of the thermo-reversible Diels–Alder cycloaddition between furan and maleimide.

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Guiducci, Aldo E., Catherine L. Boyd, Eric Clot, and Philip Mountford. "Reactions of cyclopentadienyl-amidinate titanium imido compounds with CO2: cycloaddition-extrusion vs. cycloaddition-insertion." Dalton Transactions, no. 30 (2009): 5960. http://dx.doi.org/10.1039/b901774g.

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Qaroush, Abdussalam K., Fatima A. Alsoubani, Ala'a M. Al-Khateeb, et al. "An efficient atom-economical chemoselective CO2 cycloaddition using lanthanum oxide/tetrabutyl ammonium bromide." Sustainable Energy & Fuels 2, no. 6 (2018): 1342–49. http://dx.doi.org/10.1039/c8se00092a.

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Gao, Aijia, Fangfang Li, Zhi Xu, Changchun Ji, Jing Gu, and Ying-Hua Zhou. "Guanidyl-implanted UiO-66 as an efficient catalyst for the enhanced conversion of carbon dioxide into cyclic carbonates." Dalton Transactions 51, no. 6 (2022): 2567–76. http://dx.doi.org/10.1039/d1dt04110j.

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The guanidyl-modified UiO-66 exhibited great activity for epoxide-CO2 cycloaddition with Bu4NBr cocatalyst, attributed to the synergistic effect of guanidyl groups as hydrogen-bond donors and Zr centers as Lewis-acidic sites.

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Lv, Hongxiao, Liming Fan, Hongtai Chen, Xiutang Zhang, and Yanpeng Gao. "Nanochannel-based {BaZn}–organic framework for catalytic activity on the cycloaddition reaction of epoxides with CO₂ and deacetalization-Knoevenagel condensation." Dalton Transactions 51, no. 9 (2022): 3546–56. http://dx.doi.org/10.1039/d1dt04231a.

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Nanochannel-based {[(CH3)2NH2]2[BaZn(TDP)(H2O)]×DMF×5H2O}n (NUC-51) is synthesized and displays a high catalytic activity on the cycloaddition reactions of epoxides with CO2 and the deacetalization-Knoevenagel condensation reaction.

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Zhang, Xiao, Yan-Zong Lv, Xiao-Liang Liu, et al. "A hydroxyl-functionalized microporous organic polymer for capture and catalytic conversion of CO2." RSC Advances 6, no. 80 (2016): 76957–63. http://dx.doi.org/10.1039/c6ra10780j.

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Wang, Yanyan, Shaopeng Li, Youdi Yang, Xiaojun Shen, Huizhen Liu, and Buxing Han. "A fully heterogeneous catalyst Br-LDH for the cycloaddition reactions of CO2 with epoxides." Chemical Communications 55, no. 48 (2019): 6942–45. http://dx.doi.org/10.1039/c9cc03052b.

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Alkordi, Mohamed H., Łukasz J. Weseliński, Valerio D'Elia, et al. "CO2conversion: the potential of porous-organic polymers (POPs) for catalytic CO2–epoxide insertion." Journal of Materials Chemistry A 4, no. 19 (2016): 7453–60. http://dx.doi.org/10.1039/c5ta09321j.

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Helal, Aasif, Kyle E. Cordova, Md Eyasin Arafat, Muhammad Usman, and Zain H. Yamani. "Defect-engineering a metal–organic framework for CO2 fixation in the synthesis of bioactive oxazolidinones." Inorganic Chemistry Frontiers 7, no. 19 (2020): 3571–77. http://dx.doi.org/10.1039/d0qi00496k.

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Krafft, Marie E., James A. Wright, and Llorente VR Boñaga. "PausonKhand reactions in water." Canadian Journal of Chemistry 83, no. 6-7 (2005): 1006–16. http://dx.doi.org/10.1139/v05-112.

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We have investigated the cobalt mediated PausonKhand (PK) reaction in water. In the presence of detergents and surfactants, Co2(CO)8 and Co4(CO)12 are effective under aqueous-phase, thermal PK reactions. In a waterTriton®X-100 medium, Co4(CO)12 is catalytically active. Further, dicobalthexacarbonyl complexes of alkynes and enynes undergo effective cyclization under thermal (70 °C) and NMO-promoted conditions. The oxidative nature of the latter conditions inhibits the reductive PK reaction. In all protocols, moderate to excellent yields of the cycloadducts are obtained. Substrates that are pr

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Xu, Cong, Yan Liu, Li Wang, et al. "New lanthanide(iii) coordination polymers: synthesis, structural features, and catalytic activity in CO2 fixation." Dalton Transactions 46, no. 47 (2017): 16426–31. http://dx.doi.org/10.1039/c7dt03574h.

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Zhang, Xiaofei, Haitao Liu, Pengfei An, et al. "Delocalized electron effect on single metal sites in ultrathin conjugated microporous polymer nanosheets for boosting CO2 cycloaddition." Science Advances 6, no. 17 (2020): eaaz4824. http://dx.doi.org/10.1126/sciadv.aaz4824.

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CO2 cycloaddition with epoxides at low temperature and pressure has been broadly recognized as an ambitious but challenging goal, which requires the catalysts to have precisely controlled Lewis acid sites. Here, we demonstrate that both stereochemical environment and oxidation state of single cobalt active sites in cobalt tetraaminophthalocyanine [CoPc(NH2)4] are finely tuned via molecular engineering with 2,5-di-tert-butyl-1,4-benzoquinone (DTBBQ). Notably, DTBBQ incorporation not only enables formation of 5-nm-thick conjugated microporous polymer (CMP) nanosheets due to the steric hindrance

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Yue, Shuang, Qian Song, Shuliang Zang, Guichun Deng, and Jun Li. "Amino-Functional Ionic Liquids as Efficient Catalysts for the Cycloaddition of Carbon Dioxide to Yield Cyclic Carbonates: Catalytic and Kinetic Investigation." Australian Journal of Chemistry 71, no. 6 (2018): 407. http://dx.doi.org/10.1071/ch17656.

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Various amino-functional ionic liquids were developed as homogeneous catalysts for the cycloaddition of carbon dioxide to different epoxides yielding the corresponding cyclic carbonates under metal- and solvent-free conditions. The effects of reaction temperature, reaction time, CO2 pressure, and the amount of catalyst on the cycloaddition reaction were investigated. The catalysts could be easily recovered after the reaction and then reused at least eight times without noticeable loss of activity and selectivity. Reaction kinetic studies were undertaken, the reaction was apparently first order

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Ghosh, Anindya, G. Naaresh Reddy, Mohammed Siddhique P. K., et al. "Fabrication of a hollow sphere N,S co-doped bifunctional carbon catalyst for sustainable fixation of CO₂ to cyclic carbonates." Green Chemistry 24, no. 4 (2022): 1673–92. http://dx.doi.org/10.1039/d1gc04153c.

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Compositional doping by nitrogen and sulfur into a carbon matrix with a distinct hollow sphere architecture was achieved via a simple approach and the co-doped carbon material was used as a bifunctional catalyst for an efficient CO2–epichlorohydrin cycloaddition reaction.

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Li, Shuqing, Zhen Zhan, Xiaoyan Wang, and Bien Tan. "Synthesis of hypercrosslinked polymers spherical shell for highly effective cycloaddition of CO2 at ambient conditions." Polymer Chemistry, 2023. http://dx.doi.org/10.1039/d3py00649b.

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CO2 cycloaddition conversion is a promising strategy for converting CO2 into high-value-added products. However, most of the research focused on CO2 cycloaddition conversion under high temperature and/or pressure conditions. The...

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Gao, Bohai, Weijie Li, Yuchao Chai, Guangjun Wu, and Landong Li. "Heteroatom‐Containing Zeolites as Solid Lewis Acid Catalysts for the Cycloaddition of CO2 to Epoxides." ChemCatChem, September 8, 2024. http://dx.doi.org/10.1002/cctc.202401385.

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The catalytic cycloaddition of CO2 to epoxides to produce valuable cyclic carbonates represents a simple and promising strategy for CO2 utilization, circumventing the ineffective CO2 reduction process. Despite current progresses, there remains an impending demand for highly‐active, cost‐effective and stable catalysts especially the ideal heterogeneous catalytic systems. Herein, we report the preparation of heteroatom‐containing zeolites through a two‐step process comprising of framework dealumination and subsequent heteroatom incorporation, and their catalytic applications in CO2 cycloaddition

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Kaewsai, Suthida, Silvano Del Gobbo, and Valerio D'Elia. "Synthesis of Bifunctional Catalysts for the Cycloaddition of CO2 to Epoxides through an Epoxide‐driven Strategy." ChemCatChem, February 7, 2024. http://dx.doi.org/10.1002/cctc.202301713.

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The design of molecular scaffolds bearing multiple functional groups for the activation and ring‐opening of epoxides is a crucial challenge for the synthesis of efficient homogeneous and heterogeneous catalysts for the cycloaddition reaction of CO2 to epoxides. Traditional approaches to prepare such multifunctional catalysts often imply multistep synthetic procedures and expensive building blocks. In this work we show that bifunctional catalysts for the cycloaddition of CO2 to epoxides bearing a Lewis acid metal and a quaternary ammonium halide group can be prepared in just two steps starting

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Zhou, Minghui, Zhengyan Qu, Jiuxuan Zhang, Hong Jiang, Zhenchen Tang, and Rizhi Chen. "Boosting CO2 chemical fixation over MOF-808 by introduction of functional groups and defective Zr sites." Chemical Communications, 2024. http://dx.doi.org/10.1039/d3cc06154j.

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The CO2 cycloaddition emerges as a promising approach for producing value-added cyclocarbonates and mitigating of greenhouse gas emissions. Although MOF-808 serves as a stable catalyst for cycloaddition, its limited activity...

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Yu, Wen-Wang, Xiang-Guang Meng, Zi-Yu Gan, Wen Li, Yu-Lian Zhang, and Jie Zhou. "Cycloaddition of CO2 with epoxides into cyclic carbonates catalyzed by binary organocatalyst under mild conditions." Catalysis Science & Technology, 2024. http://dx.doi.org/10.1039/d4cy00639a.

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Fixing CO2 into value-added cyclic carbonates is an effective way to reduce CO2 emissions. A metal-free and solvent-free catalytic system has been developed for the cycloaddition of CO2 with epoxides...

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Wang, Yifan, Huimin Liu, Qiujin Shi, et al. "Single‐Atom Titanium on Mesoporous Nitrogen, Oxygen‐Doped Carbon for Efficient Photo‐thermal Catalytic CO2 Cycloaddition by a Radical Mechanism." Angewandte Chemie International Edition, April 6, 2024. http://dx.doi.org/10.1002/anie.202404911.

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Developing efficient and earth‐abundant catalysts for CO2 fixation to high value‐added chemicals is meaningful but challenging. Styrene carbonate has great market value, but the cycloaddition of CO2 to styrene oxide is difficult due to the high steric hindrance and weak electron‐withdrawing ability of the phenyl group. To utilize clean energy (such as optical energy) directly and effectively for CO2 value‐added process, we introduce earth‐abundant Ti single‐atom into the mesoporous nitrogen, oxygen‐doped carbon nanosheets (Ti‐CNO) by a two‐step method. The Ti‐CNO exhibits excellent phototherma

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Wang, Yifan, Huimin Liu, Qiujin Shi, et al. "Single‐Atom Titanium on Mesoporous Nitrogen, Oxygen‐Doped Carbon for Efficient Photo‐thermal Catalytic CO2 Cycloaddition by a Radical Mechanism." Angewandte Chemie, April 6, 2024. http://dx.doi.org/10.1002/ange.202404911.

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Developing efficient and earth‐abundant catalysts for CO2 fixation to high value‐added chemicals is meaningful but challenging. Styrene carbonate has great market value, but the cycloaddition of CO2 to styrene oxide is difficult due to the high steric hindrance and weak electron‐withdrawing ability of the phenyl group. To utilize clean energy (such as optical energy) directly and effectively for CO2 value‐added process, we introduce earth‐abundant Ti single‐atom into the mesoporous nitrogen, oxygen‐doped carbon nanosheets (Ti‐CNO) by a two‐step method. The Ti‐CNO exhibits excellent phototherma

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Sharma, Neha, Bharat Ugale, Sunil Kumar, and Kamalakannan Kailasam. "Metal-Free Heptazine-Based Porous Polymeric Network as Highly Efficient Catalyst for CO2 Capture and Conversion." Frontiers in Chemistry 9 (October 15, 2021). http://dx.doi.org/10.3389/fchem.2021.737511.

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The capture and catalytic conversion of CO2 into value-added chemicals is a promising and sustainable approach to tackle the global warming and energy crisis. The nitrogen-rich porous organic polymers are excellent materials for CO2 capture and separation. Herein, we present a nitrogen-rich heptazine-based microporous polymer for the cycloaddition reaction of CO2 with epoxides in the absence of metals and solvents. HMP-TAPA, being rich in the nitrogen site, showed a high CO2 uptake of 106.7 mg/g with an IAST selectivity of 30.79 toward CO2 over N2. Furthermore, HMP-TAPA showed high chemical an

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Sun, Xiao‐Hua, Xue‐Wen Zhang, Fei Wang, Jie Xu, and Bing Xue. "Mesostructured Bifunctional ZnBr₂/g‐C₃N₄ Catalysts Towards Efficient Cocatalyst‐Free Cycloaddition of CO₂ to Propylene Carbonate." ChemistrySelect 9, no. 40 (2024). http://dx.doi.org/10.1002/slct.202403402.

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AbstractCatalytic cycloaddition of CO2 with propylene oxide (PO) is a sustainable pathway for the synthesis of propylene carbonate (PC), and the design of efficient heterogeneous catalysts is a hot research topic in both C1 chemistry and functional materials. In this work, graphitic carbon nitride (g‐C3N4) materials were prepared using urea (U) and melamine (M) as precursors through one‐step thermal condensation and then applied as catalyst supports for ZnBr2. As heterogeneous catalysts, the synthesized composites (ZnBr2/g‐C3N4‐MU) exhibited higher activity in the cycloaddition reaction of CO2

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Liu, Wenxiu, Lei Li, Wei Shao, et al. "Vacancy-Cluster-Mediated Surface Activation for Boosting CO₂ Chemical Fixation." Chemical Science, 2022. http://dx.doi.org/10.1039/d2sc05596a.

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The cycloaddition of CO2 with epoxides towards cyclic carbonates provides a promising pathway for CO2 utilization. Given the crucial role of epoxide ring opening in determining the reaction rate, designing...

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