Efficient cycloaddition of CO2 and epoxides to cyclic carbonates using salen-based covalent organic framework as a heterogeneous catalyst

Tong, Yutao; Cheng, Ruihua; Dong, Huan; Liu, Boping

doi:10.1007/s10934-022-01246-w

Cited by 9 publications

(11 citation statements)

References 45 publications

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“…Limited research has been conducted on the impact of using CO 2 with reduced purity levels, which may comprise pollutants usually in flue gases. 18,48…”

Section: Resultsmentioning

confidence: 99%

“…Limited research has been conducted on the impact of using CO 2 with reduced purity levels, which may comprise pollutants usually in flue gases. 18,48 To assess the catalytic efficiency of [DMPz-6]I 2 at low CO 2 concentrations, five experiments were performed to replicate the cycloaddition reaction between diluted CO 2 and PO. The concentration of CO 2 was manipulated by altering its mole ratio to N 2 (i.e., 10% CO 2 + 90% N 2 , 20% CO 2 + 80% N 2 , 40% CO 2 + 60% N 2 , 60% CO 2 + 40% N 2 , and 80% CO 2 + 20% N 2 ).…”

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

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Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO₂ into carbonates under mild conditions

Ndayambaje,

Shabbir,

Zhao

et al. 2024

Catal. Sci. Technol.

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“…Limited research has been conducted on the impact of using CO 2 with reduced purity levels, which may comprise pollutants usually in flue gases. 18,48…”

Section: Resultsmentioning

confidence: 99%

Section: Catalysis Science and Technology Papermentioning

confidence: 99%

Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO₂ into carbonates under mild conditions

Ndayambaje,

Shabbir,

Zhao

et al. 2024

Catal. Sci. Technol.

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“…Recently, M(salen)-COFs have exhibited outstanding performances in various applications such as catalytic antioxidants, supercapacitors, synergistic gas sorption, chromatographic separation, and heterogeneous catalysis. [27,[30][31][32][33][34][35] The structural design of M(salen)-COFs plays a critical role in determining their performance. Hence, it is imperative to conduct a thorough analysis of the structures of M(salen)-COFs, with a specific emphasis on the metal linker types, common heterogeneous catalytic applications, and a detailed investigation into the catalytic mechanisms.…”

Section: Introductionmentioning

confidence: 99%

Metallosalen covalent organic frameworks for heterogeneous catalysis

Zhou,

Deng,

2024

Interdisciplinary Materials

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Metallosalen covalent organic frameworks (M(salen)‐COFs) have garnered significant attention as promising candidates for advanced heterogeneous catalysis, including organocatalysis, electrocatalysis, and photocatalysis, due to their unique structural advantages (combining molecules catalysts and crystalline porous materials) and tunable topological network. It is essential to provide a comprehensive overview of emerging designs of M(salen)‐COFs and corresponding advances in this field. Herein, this review first summarizes the reported metallolinkers and the synthesis methods of M(salen)‐COFs. In addition, the review enumerates the excellent M(salen)‐COF based heterogeneous catalysts and discusses the fundamental mechanisms behind the outstanding heterogeneous catalytic performance of M(salen)‐COFs. These mechanisms include the pore enrichment effect (enhancing local concentration within porous materials to promote catalytic reactions), the three‐in‐one strategy (integrating enrichment, reduction, and oxidation sites in one system), and the incorporation of a built‐in electric field (implanting a built‐in electric field in heterometallic phthalocyanine covalent organic frameworks). Furthermore, this review discusses the challenges and prospects related to M(salen)‐COFs in heterogeneous catalysis.

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“…Chiral salen ligands like (1 R ,2 R )-1,2-cyclohexanediamino- N , N ′-bis(3- tert -butyl-salicylidene) are the most commonly used ligands in asymmetric catalysis . Few examples of chiral metal-salen complex-catalyzed asymmetric organic transformations include the epoxidation of alkenes, , kinetic resolution of secondary alcohols, , ring opening of epoxides, , and kinetic resolution of epoxides. , In 2017, Wang and co-workers for the first time introduced a procedure to synthesize achiral salen-based COFs under solvothermal conditions and afterward, several reports were published on salen-based COFs. − In the same year, Han et al for the first time reported the construction of chiral salen-based COFs by the condensation of chiral 1,2-diaminocyclohexane and C 3 -symmetric 1,3,5-tris(3′- tert -butyl-4′-hydroxy-5′-formylphenyl)benzene under solvothermal conditions and was employed as a heterogeneous catalyst in asymmetric catalysis …”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Chiral Covalent Organic Framework for the Enantioselective Epoxidation of Styrenes and Chromenes

et al. 2023

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Herein, we report the synthesis of two-dimensional chiral ZnII Salen covalent organic frameworks (COFs) (2) via rapid microwave-promoted condensation of C3-symmetric 1,3,5-tris[(5-tert-butyl-3-formyl-4-hydroxyphenyl)ethynyl]benzene 1 with (1R,2R)-1,2-diaminocyclohexane in excellent yields. The synthesized chiral ZnII Salen COF (2) showed a 454 m2 g–1 BET surface area with excellent crystallinity and thermal stability. Further, the post-synthetic metal exchange reaction was performed for chiral ZnII Salen COFs (2) with Mn(OAc)2·4H2O to synthesize chiral MnIII Salen COFs (3) and utilized as an effective heterogeneous catalyst for the enantioselective epoxidation of styrenes and chromenes to afford chiral epoxides up to 72% ee. Chiral MnIII Salen COF (3) could easily be separated by centrifugation and reused up to four recycles with an observable loss in activity without impairing enantioselectivity.

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Efficient cycloaddition of CO2 and epoxides to cyclic carbonates using salen-based covalent organic framework as a heterogeneous catalyst

Cited by 9 publications

References 45 publications

Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO₂ into carbonates under mild conditions

Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO₂ into carbonates under mild conditions

Metallosalen covalent organic frameworks for heterogeneous catalysis

Heterogeneous Chiral Covalent Organic Framework for the Enantioselective Epoxidation of Styrenes and Chromenes

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Efficient cycloaddition of CO2 and epoxides to cyclic carbonates using salen-based covalent organic framework as a heterogeneous catalyst

Cited by 9 publications

References 45 publications

Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO2 into carbonates under mild conditions

Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO2 into carbonates under mild conditions

Metallosalen covalent organic frameworks for heterogeneous catalysis

Heterogeneous Chiral Covalent Organic Framework for the Enantioselective Epoxidation of Styrenes and Chromenes

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Product

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Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO₂ into carbonates under mild conditions

Controlling dual-positively charged pyrazolium ionic liquids for efficient catalytic conversion of CO₂ into carbonates under mild conditions