The importance of the bite angle of metal(III) salen catalysts in the sequestration of CO2 with epoxides in mild conditions

Vidal-Lopez, Anna; Posada‐Pérez, Sergio; Solà, Miquel; Poater, Albert; D’Elia, Valerio

doi:10.1016/j.gce.2021.12.010

Cited by 21 publications

(13 citation statements)

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“…3ic and 3id, the energy barriers decreased to 13.5 and 12.5 kcal mol −1 , respectively. In addition, on a simple exercise of predictive chemistry, [64][65][66][67] carboxylic acid and tert-butyl ester derivatives were studied, showing barriers of 13.2 and 14.6 kcal mol −1 , respectively, and thus showing a clear trend in which the bulkier the alkyl group, the higher the activation energy. Anyway, still insufficient for the latter compound to be not active like 3af, and compared to all the systems in Table 1.…”

Section: Resultsmentioning

confidence: 99%

Photoredox catalysis leading to triazolo-quinoxalinones at room temperature: selectivity of the rate determining step

et al. 2022

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Section: Resultsmentioning

confidence: 99%

Photoredox catalysis leading to triazolo-quinoxalinones at room temperature: selectivity of the rate determining step

et al. 2022

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“…DFT calculations have been extensively used to study the mechanism of the CO 2 /epoxides coupling by using metal-salen complexes by Poater and coworkers. [48] In particular, the authors focused their attention on monomeric salen complexes of Co, Cr, Y and Sc (10-17, Figure 5) in the cycloaddition of CO 2 to commercially relevant epoxides such as PO and epychlorohydrin (ECH). This study shows the importance in the choice of the metal center for the obtaining of high active catalysts.…”

Section: Salen and Salen-like Ligandsmentioning

confidence: 99%

“…DFT calculations have been extensively used to study the mechanism of the CO 2 /epoxides coupling by using metal‐salen complexes by Poater and coworkers [48] …”

Section: Cyclic Organic Carbonatesmentioning

confidence: 99%

Recent Advancements in Metal‐catalysts Design for CO₂/Epoxide Reactions

Monica

Capacchione

2022

Asian J Org Chem

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Carbon dioxide utilization is considered an effective strategy to mitigate the carbon footprint of chemical industry. Among other uses, the incorporation of carbon dioxide into cyclic organic carbonates (COCs) and aliphatic polycarbonates (APCs) has received great attention in the field of homogeneous catalysis. After few decades of research activity, a wide range of metal-based catalytic systems has been reported to promote this reaction. Nonetheless, a better comprehension of the apparently simple reaction mechanism of such transformations has been reached only in recent years. This, in turn, allowed for the design of new catalytic systems guided by a clearer mechanistic picture. In this review, we present the most recent advancements in this field, distinguishing between catalysts for COCs and APCs production classified on the bases of their ligand structures.

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“…In addition, some review articles on CO 2 /epoxide coupling reactions by Kleij et al and D'Elia et al have been reported. 27,28 Furthermore, some active organo-catalysts 19,29−31 including boronate esters 32,33 and homogeneous metal complexes fabricated on various ligands like salen 34 and supported surfaces like silica 35,36 and metal centers such as cobalt, 37−47 uninuclear and binuclear aluminum, 48−52 zinc, 53,54 chromium, 55,56 iron, 57,58 tin, 59 silver, 60 scandium and yttrium, 61 and vanadium 62−64 are reported. Among the reported metal complexes, few ruthenium(II) complexes supported by wellknown ligand systems like salen 65 and porphyrin 66 have been studied for the CO 2 /epoxide coupling reaction.…”

Section: Introductionmentioning

confidence: 99%

Formation of Value-Added Cyclic Carbonates by Coupling of Epoxides and CO₂by Ruthenium Pincer Hydrazone Complexes under Atmospheric Pressure

Ullah

Marwat

et al. 2023

Energy Fuels

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Transforming atmospheric CO2 into industrially valuable cyclic carbonates is of great importance and one of the attractive approaches for reducing CO2 concentration in the biosphere. However, the selectivity and conversion of ruthenium catalysts for cyclic carbonate formation via CO2 insertion to epoxides are low at high pressure. Here, a series of novel ruthenium complexes supported by ONN pincer-type hydrazone ligands were successfully generated, and their potential for CO2 valorization to cyclic carbonates was investigated. NMR, Fourier transform infrared (FT-IR), mass spectrometry, elemental analysis, and single-crystal diffraction analysis further confirmed the structures of these ruthenium compounds. These compounds were utilized for the CO2/coupling reaction after thorough characterization. Fortunately, these complexes outperform the reported ruthenium catalysts with a turn-over frequency of 833 h–1 and >99% selectivity at atmospheric pressure without any assisted cocatalyst. The designed catalyst showed consistent catalytic performance over five repeating cycles.

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The importance of the bite angle of metal(III) salen catalysts in the sequestration of CO2 with epoxides in mild conditions

Cited by 21 publications

References 104 publications

Photoredox catalysis leading to triazolo-quinoxalinones at room temperature: selectivity of the rate determining step

Photoredox catalysis leading to triazolo-quinoxalinones at room temperature: selectivity of the rate determining step

Recent Advancements in Metal‐catalysts Design for CO₂/Epoxide Reactions

Formation of Value-Added Cyclic Carbonates by Coupling of Epoxides and CO₂by Ruthenium Pincer Hydrazone Complexes under Atmospheric Pressure

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The importance of the bite angle of metal(III) salen catalysts in the sequestration of CO2 with epoxides in mild conditions

Cited by 21 publications

References 104 publications

Photoredox catalysis leading to triazolo-quinoxalinones at room temperature: selectivity of the rate determining step

Photoredox catalysis leading to triazolo-quinoxalinones at room temperature: selectivity of the rate determining step

Recent Advancements in Metal‐catalysts Design for CO2/Epoxide Reactions

Formation of Value-Added Cyclic Carbonates by Coupling of Epoxides and CO2by Ruthenium Pincer Hydrazone Complexes under Atmospheric Pressure

Contact Info

Product

Resources

About

Recent Advancements in Metal‐catalysts Design for CO₂/Epoxide Reactions

Formation of Value-Added Cyclic Carbonates by Coupling of Epoxides and CO₂by Ruthenium Pincer Hydrazone Complexes under Atmospheric Pressure