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Suzuki S, Takahashi K. Ionic Liquids as Organocatalysts and Solvents for Lignocellulose Reactions. CHEM REC 2023; 23:e202200264. [PMID: 36638244 DOI: 10.1002/tcr.202200264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/30/2022] [Indexed: 01/14/2023]
Abstract
Ionic liquids (ILs) are the only media that can allow the homogeneous organocatalytic reactions of lignocellulosic biomass (lignocellulose), since the designability of their cations and anions offers the dual functions of solubility and catalytic activity. This review provides an account of our recent achievements in the organocatalytic approaches for converting lignocellulose into polymer materials based on the principles of IL design that we have originally established. These methodologies include the simple and mild chemical modification of cellulose and lignin under high conversions, with high selectivity, and/or with efficient atom economy. Similar reactions and subsequent fractionation processes are applied to lignocellulose, and a highly productive reaction system is developed using a twin-screw extruder that is specific to the IL media.
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Affiliation(s)
- Shiori Suzuki
- Division of Fundamental Agriscience Research, Research Faculty of Agriculture, Hokkaido University, North-9, West-9, Kita-ku, Sapporo, Hokkaido 060-8589, Japan
| | - Kenji Takahashi
- Faculty of Biological Science and Technology, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
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2
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Ge W, Shuai J, Wang Y, Zhou Y, Wang X. Progress on chemical modification of cellulose in “green” solvents. Polym Chem 2022. [DOI: 10.1039/d1py00879j] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Chemical modification of cellulose in "green" solvents.
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Affiliation(s)
- Wenjiao Ge
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Jianbo Shuai
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuyuan Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Yuxi Zhou
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
| | - Xiaohui Wang
- State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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Pirouzi F, Eshghi H, Sabet-Sarvestani H. A theoretical approach to investigating the mechanism of action and efficiency of N-heterocyclic olefins as organic catalysts for transesterification reactions. NEW J CHEM 2022. [DOI: 10.1039/d1nj05589e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
For the first time, it is theoretically proved that carbonyl ester reactions with alcohols can be facilitated by activation of fully-planar NHOs via zwitterionic species.
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Affiliation(s)
- Fatemeh Pirouzi
- Computational Chemistry Research Lab., Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Eshghi
- Computational Chemistry Research Lab., Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Hossein Sabet-Sarvestani
- Computational Chemistry Research Lab., Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
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4
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Organocatalytic esterification of polysaccharides for food applications: A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2021.11.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Wolfs J, Nickisch R, Wanner L, Meier MAR. Sustainable One-Pot Cellulose Dissolution and Derivatization via a Tandem Reaction in the DMSO/DBU/CO 2 Switchable Solvent System. J Am Chem Soc 2021; 143:18693-18702. [PMID: 34714063 DOI: 10.1021/jacs.1c08783] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
New sustainable concepts have to be developed to overcome the increasing problems of resource availability. Cellulose derivatives with tunable material properties are promising biobased alternatives to existing petroleum-derived polymeric materials. However, the chemical modification of cellulose is very challenging, often requiring harsh conditions and complex solubilization or activation steps. More sustainable procedures toward novel cellulose derivatives are therefore of great interest. Herein, we describe a novel concept combining two approaches, (i) tandem catalysis and (ii) cellulose derivatization, by applying a single catalyst for three transformations in the DMSO/DBU/CO2 switchable solvent system. Cellulose was functionalized with four different biobased isothiocyanates, which were formed in situ via a catalytic sulfurization of isocyanides with elemental sulfur, preventing the exposure and handling of the isothiocyanates. The degree of substitution of the formed O-cellulose thiocarbamates was shown to be controllable in a range of 0.52-2.16 by varying the equivalents of the reactants. All obtained products were analyzed by ATR-IR, 1H, 13C, and 31P NMR spectroscopy as well as size exclusion chromatography, elemental analysis, differential scanning calorimetry, and thermal gravimetric analysis. Finally, the tandem reaction approach was shown to be beneficial in terms of efficiency as well as sustainability compared to a stepwise synthesis. Recycling ratios ranging from 79.1% to 95.6% were obtained for the employed components, resulting in an E-factor of 2.95 for the overall process.
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Affiliation(s)
- Jonas Wolfs
- Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| | - Roman Nickisch
- Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| | - Lisa Wanner
- Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany
| | - Michael A R Meier
- Institute of Organic Chemistry (IOC), Materialwissenschaftliches Zentrum MZE, Karlsruhe Institute of Technology (KIT), Straße am Forum 7, 76131 Karlsruhe, Germany.,Institute of Biological and Chemical Systems─Functional Molecular Systems (IBCS-FMS), Karlsruhe Institute of Technology (KIT), Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
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Low waste process of rapid cellulose transesterification using ionic liquid/DMSO mixed solvent: Towards more sustainable reaction systems. Carbohydr Polym 2021; 256:117560. [DOI: 10.1016/j.carbpol.2020.117560] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2020] [Revised: 12/07/2020] [Accepted: 12/20/2020] [Indexed: 01/06/2023]
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7
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Abstract
A facile, sustainable method for the selective modification of aliphatic hydroxy (R–OH) groups in Kraft lignin was developed using an ionic liquid, 1-ethyl-3-methylimidazolium acetate (EmimOAc), as a solvent and catalyst. Selective R–OH modification was achieved by a one-pot, two-step homogeneous reaction: (i) acetylation of R–OH and aromatic OH (Ar–OH) groups with isopropenyl acetate (IPAc) as an acyl donor and (ii) subsequent selective deacetylation of the generated aromatic acetyl (Ar–OAc) groups. In step (i), IPAc reacts rapidly with Ar–OH but slowly with R–OH. The generated Ar–OAc is gradually deacetylated by heating in EmimOAc, whereas the aliphatic acetyl (R–OAc) groups are chemically stable. In step (ii), all R–OH is acetylated by IPAc and Ar–OAc which is a better acyl donor than IPAc, contributing to the rapid acetylation of the remaining R–OH, and selective deacetylation of the residual Ar–OAc is completed by adding a tiny amount of water as a proton source. This two-step reaction resulted in selective R–OH modification (>99%) in Kraft lignin with the remaining being almost all Ar–OH groups (93%). Selectively modified Kraft lignin was obtained with an acceptably high isolated yield (85%) and repeatability (N = 3). Furthermore, despite the lower substitution degree, it exhibited solubility in common solvents, heat-meltability, and thermal stability comparable to completely acetylated Kraft lignin.
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Zhang Q, Cui X, Feng T, Zhang Y, Zhang X, He J, Wang J. Hydrolysis of methyl acetate using ionic liquids as catalyst and solvent. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110785] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Hirose D, Wardhana Kusuma SB, Nomura S, Yamaguchi M, Yasaka Y, Kakuchi R, Takahashi K. Effect of anion in carboxylate-based ionic liquids on catalytic activity of transesterification with vinyl esters and the solubility of cellulose. RSC Adv 2019; 9:4048-4053. [PMID: 35518094 PMCID: PMC9060529 DOI: 10.1039/c8ra10042j] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 01/21/2019] [Indexed: 11/21/2022] Open
Abstract
The role of 1-ethyl-3-methylimidazolium carboxylate-type ionic liquid as the solvent and organocatalyst for transesterification reaction of cellulose was investigated.
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Affiliation(s)
- Daisuke Hirose
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | | | - Shuhei Nomura
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Makoto Yamaguchi
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Yoshiro Yasaka
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Ryohei Kakuchi
- Division of Molecular Science
- Graduate School of Science and Technology
- Gunma University
- Kiryu 376-8515
- Japan
| | - Kenji Takahashi
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
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Suzuki S, Ishikuro A, Hirose D, Ninomiya K, Takahashi K. Dual Catalytic Activity of an Ionic Liquid in Lignin Acetylation and Deacetylation. CHEM LETT 2018. [DOI: 10.1246/cl.180350] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shiori Suzuki
- Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Akinari Ishikuro
- Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Daisuke Hirose
- Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Kazuaki Ninomiya
- Institute for Frontier Science Initiative, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
| | - Kenji Takahashi
- Faculty of Natural System, Institute of Science and Engineering, Kanazawa University, Kakuma-machi, Kanazawa, Ishikawa 920-1192, Japan
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Suzuki S, Takeoka Y, Rikukawa M, Yoshizawa-Fujita M. Brønsted acidic ionic liquids for cellulose hydrolysis in an aqueous medium: structural effects on acidity and glucose yield. RSC Adv 2018; 8:14623-14632. [PMID: 35540788 PMCID: PMC9079954 DOI: 10.1039/c8ra01950a] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 04/07/2018] [Indexed: 11/21/2022] Open
Abstract
The conversion of cellulose into valuable chemicals has attracted much attention, due to the concern about depletion of fossil fuels. The hydrolysis of cellulose is a key step in this conversion, for which Brønsted acidic ionic liquids (BAILs) have been considered promising acid catalysts. In this study, using BAILs with various structures, their acidic catalytic activity for cellulose hydrolysis assisted by microwave irradiation was assessed using the Hammett acidity function (H0) and theoretical calculations. The glucose yields exceeded 10% when the H0 values of the BAIL aqueous solutions were below 1.5. The highest glucose yield was about 36% in 1-(1-octyl-3-imidazolio)propane-3-sulfonate (Oimps)/sulfuric acid (H2SO4) aqueous solution. A long alkyl side chain on the imidazolium cation, which increased the hydrophobicity of the BAILs, enhanced the glucose yield. Using Brønsted acidic ionic liquids with various structures, their acidic catalytic activity for cellulose hydrolysis assisted by microwave irradiation was assessed using the Hammett acidity function (H0) and theoretical calculations.![]()
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Affiliation(s)
- Shiori Suzuki
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
| | - Yuko Takeoka
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
| | - Masahiro Rikukawa
- Department of Materials and Life Sciences
- Sophia University
- Tokyo 102-8554
- Japan
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Suzuki S, Shibata Y, Hirose D, Endo T, Ninomiya K, Kakuchi R, Takahashi K. Cellulose triacetate synthesis via one-pot organocatalytic transesterification and delignification of pretreated bagasse. RSC Adv 2018; 8:21768-21776. [PMID: 35541740 PMCID: PMC9080981 DOI: 10.1039/c8ra03859g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2018] [Accepted: 06/06/2018] [Indexed: 02/02/2023] Open
Abstract
Cellulose triacetate was synthesised by the transesterification reaction of mild acid-pretreated lignocellulosic biomass with a stable acetylating reagent (isopropenyl acetate, IPA) in an ionic liquid (1-ethyl-3-methylimidazolium acetate, EmimOAc) which enabled the dissolution of lignocellulose as well as the organocatalytic reaction. The homogeneous acetylation of pretreated sugar-cane bagasse was carried out under mild conditions (80 °C, 30 min), and the subsequent reprecipitation processes led to enriched cellulose triacetate with a high degree of substitution (DS; 2.98) and glucose purity (∼90%) along with production of lignin acetate. Cellulose triacetate was synthesised by the transesterification reaction of mild acid-pretreated lignocellulosic biomass with a stable acetylating reagent in an ionic liquid, EmimOAc, which enabled the dissolution of lignocellulose as well as the organocatalytic reaction.![]()
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Affiliation(s)
- Shiori Suzuki
- Faculty of Natural System
- Institute of Science and Engineering
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Yoshiki Shibata
- Faculty of Natural System
- Institute of Science and Engineering
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Daisuke Hirose
- Faculty of Natural System
- Institute of Science and Engineering
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Takatsugu Endo
- Department of Molecular Chemistry and Biochemistry
- Faculty of Science and Engineering
- Doshisha University
- Kyoutanabe 610-0394
- Japan
| | - Kazuaki Ninomiya
- Institute for Frontier Science Initiative
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Ryohei Kakuchi
- Division of Molecular Science
- Graduate School of Science and Technology
- Gunma University
- Kiryu 376-8515
- Japan
| | - Kenji Takahashi
- Faculty of Natural System
- Institute of Science and Engineering
- Kanazawa University
- Kanazawa 920-1192
- Japan
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