MOR zeolite supported Brønsted acidic ionic liquid: an efficient and recyclable heterogeneous catalyst for ketalization

Li, Zhang-Min; Zhou, Yan; Tao, Duan‐Jian; Huang, Wei; Chen, Xiangshu; Yang, Zhen

doi:10.1039/c4ra00092g

Cited by 36 publications

(15 citation statements)

References 36 publications

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“…In stoichiometric amount, EG reacted with cyclohexanone to yield the respective cyclic ketal around 70 % after 2 h of reaction time at 50 °C (Table 3, entry 13). [219] Vogt, Esteban, and Söderholm synthesized polystyrenebased sulfonate-octaphenyl POSS (polyhedral oligomeric silsesquioxanes) compounds (H-Sulfo-POSS) to catalyze the ketalization of GL reaction with 2-butanone at 25 °C (Table 3, entry 14). Three candidates of different sulfonation degrees were prepared and compared to commercial references such as paratoluenesulfonic acid (PTSA) and its heterogeneous analog Amberlysy-36.…”

Section: Homogeneous Acidic Catalystsmentioning

confidence: 99%

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Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Muzyka

Monbaliu

2022

ChemSusChem

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The previous decade has witnessed a drastic increase of European incentives aimed at pushing forward the transition from an exclusively petro‐based economy toward a strong and homogeneous bio‐based economy. Since 2012, numerous programs have been developed to stimulate and promote research and innovation relying on sustainable and renewable resources. Terrestrial biomass is a virtually infinite reservoir of biomacromolecules, the biorefining of which provides platform molecules of low complexity yet with tremendous industrial potential. Among such bio‐based platform molecules, polyols and, more specifically, molecules featuring vicinal diols have gained tremendous interest and have stimulated an increasing research effort from the chemistry and chemical engineering communities. This Review revolves around the most promising process conditions and technologies reported since 2012 that specifically target bio‐based vicinal diols and promote their transformation into value‐added molecules of wide industrial interest, such as olefins, epoxides, cyclic carbonates, and ketals.

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Section: Homogeneous Acidic Catalystsmentioning

confidence: 99%

“…Yang's team reported a Brønsted acidic ionic liquid (SO 3 H) catalyst supported on mordenite (BAL@MOR). In stoichiometric amount, EG reacted with cyclohexanone to yield the respective cyclic ketal around 70 % after 2 h of reaction time at 50 °C (Table 3, entry 13) [219] …”

Section: Staple Reactions Toward the Upgrading Of Bio‐based Vicinal P...mentioning

confidence: 99%

Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Muzyka

Monbaliu

2022

ChemSusChem

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“…[29] Furthermore, increasing restrictions imposed by governments and the United Nations protocols with the aim of eliminating toxic chemical processes require adopting safer procedures. In this context, researchers have studied systems with metals, such as Mn, [30] Ni, [31][32][33] Ru, [34,35] Co, [36][37][38] Rh, [39][40][41] Ir, [42][43][44][45] Pd, [46,47] and Pt [48] immobilized on zeolite, [49,50] silica, [50,51] polymers, [52][53][54] alumina, [55] magnetite, [39,[56][57][58][59] and carbon. [60] These systems exhibit moderate to excellent conversion and selectivity, especially in the hydrogenation reactions.…”

Section: Introductionmentioning

confidence: 99%

Platinum Nanoparticle Based Dip‐Catalyst for Facile Hydrogenation of Quinoline, Unfunctionalized Olefins, and Imines

et al. 2020

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Developing a bio‐inspired catalyst with the efficiency of homogeneous catalysts and recyclability similar to heterogeneous catalysts is quite desirable but challenging. Incorporation of metal nanoparticles (<10 nm) on abundant, low‐cost supports from agricultural waste can yield highly active and product‐selective pseudo‐homogeneous catalysts, with attributes such as ease of retrieval for next use, reusability, etc. In this work, the fabrication of an efficient and reusable ‘dip‐catalyst’ by anchoring platinum nanoparticles on white jute plant (Corchorus capsularis) stems (JPS) and its use for the hydrogenation of N‐heteroarenes, unfunctionalized olefins, and imines are described. The catalyst was characterized using XRD, SEM, EDS, TEM, HRTEM, FTIR, and XPS, and TEM shows spherical (average diameter 4–5 nm) non‐agglomerated metal nanoparticles. Catalyst was used for the chemoselective (>99 % selectivity) hydrogenation of quinoline with a quantitative (>99 %) conversion to 1,2,3,4‐tetrahydroquinoline (py‐THQ) under hydrogen at a pressure <30 bar. Also, functional group tolerance is indicated by the quantitative hydrogenation of 6‐chloroquinoline to 6‐chloro‐1,2,3,4‐tetrahydroquinoline, which is a longstanding challenge owing to C−Cl bond cleavage. In the hydrogenation of structurally‐challenging trisubstituted trans‐2‐methyl‐3‐phenyl‐2‐propen‐1‐ol olefins, 64 % conversion and >99 % selectivity was achieved. A series of imines with different chain lengths was also hydrogenated selectively in methanol with >99 % conversion. Density functional theory (DFT) calculations reveal the efficient adsorption of 6‐chloroquinoline on the surface of Pt nanoparticles on Pt@JPS strips in a tilted orientation placing the C−Cl bond away from the metal and allowing facile desorption of 6‐chloro‐1,2,3,4‐tetrahydroquinoline leading to higher chemoselectivity. The spent catalyst can be reused for 12 consecutive cycles without significant damage to the cellulosic surface.

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“…According to their pore size dimension, ISSN: 2638-2075 porous materials are classified by International Union of Pure and Applied Chemists (IUPAC) into three classes: macroporous material (pore size >50 nm), mesoporous material (pore size=2-50 nm) and microporous material (pore size <2 nm) [1]. Tremendous commercial profits and environmental revolution promote the application of microporous solids, especially microporous zeolite, in wastewater treatment process [2]. However, the poor mass transfer efficiency between microporous materials and large reactive molecules, particularly in liquid-phase systems, greatly restrict their further development in wastewater treatment [3].…”

Section: Introductionmentioning

confidence: 99%

Mesoporous Materials as Catalyst support for Wastewater Treatment

Ding¹,

Hu²

2019

Madridge J Nanotechnol Nanosci

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The scarcity of water resources has stimulated the exploration of sewage treatment technique. On account of flexible separation and recycling, heterogeneous catalysis has aroused strong interest among researchers. In terms of the specific surface area, pore dimension and catalytic sites distribution, porous materials hold infinite potentials in heterogeneous catalysis. Among different porous materials, mesoporous material is most favorable in aqueous system. Moderate diffusion flux and highly efficient mass transfer are achievable due to their appropriate pore dimension, high specific surface area and good organic adsorption capacity. Moreover, most kinds of mesoporous materials are non-toxic, environmental-friendly and highly stable in both acidic and basic conditions. In this review, several kinds of mesoporous materials (such as siliceous mesoporous materials, carbonaceous mesoporous materials and metallic mesoporous materials) are introduced involving their characteristics, advantages, disadvantages as well as their application in wastewater treatment.

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MOR zeolite supported Brønsted acidic ionic liquid: an efficient and recyclable heterogeneous catalyst for ketalization

Abstract: In order to widen the application of ionic liquids as efficient and renewable heterogeneous catalysts, supported ionic liquids (SILs) have received considerable attention.

Cited by 36 publications

References 36 publications

Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Perspectives for the Upgrading of Bio‐Based Vicinal Diols within the Developing European Bioeconomy

Platinum Nanoparticle Based Dip‐Catalyst for Facile Hydrogenation of Quinoline, Unfunctionalized Olefins, and Imines

Mesoporous Materials as Catalyst support for Wastewater Treatment

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