Relevant bibliographies by topics / Cycloaddition du CO2 / Journal articles
To see the other types of publications on this topic, follow the link: Cycloaddition du CO2.

Journal articles on the topic 'Cycloaddition du CO2'

Author: Grafiati
Published: 23 November 2024

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Cycloaddition du CO2.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
3

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
4

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
5

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
6

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
7

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
8

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
9

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
10

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
11

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
14

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
15

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
16

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
17

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
20

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
21

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
22

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
23

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
25

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
27

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
28

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
29

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
30

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
31

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
32

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
34

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
35

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

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

Full text
Abstract:
We have investigated the cobalt mediated Pauson–Khand (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 water–Triton®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
APA, Harvard, Vancouver, ISO, and other styles
37

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.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
39

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
40

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.

Full text
Abstract:
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.
APA, Harvard, Vancouver, ISO, and other styles
41

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.

Full text
Abstract:
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...
APA, Harvard, Vancouver, ISO, and other styles
42

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
43

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
44

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.

Full text
Abstract:
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...
APA, Harvard, Vancouver, ISO, and other styles
45

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.

Full text
Abstract:
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...
APA, Harvard, Vancouver, ISO, and other styles
46

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
47

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
48

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
49

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.

Full text
Abstract:
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
APA, Harvard, Vancouver, ISO, and other styles
50

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.

Full text
Abstract:
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...
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography