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Ding L, Sun X, Huang C, Li J, Chen B. Insights into the mechanism of cumene catalytic oxidation using ionic liquid [Bmim]OH. MOLECULAR CATALYSIS 2023. [DOI: 10.1016/j.mcat.2023.113008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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2
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McNeice P, Marr PC, Marr AC. Basic ionic liquids for catalysis: the road to greater stability. Catal Sci Technol 2021. [DOI: 10.1039/d0cy02274h] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Homogeneous and heterogenized basic ionic liquids as reaction catalysts have been highlighted, particularly where they are used to promote reactions that could form the basis of more sustainable energy and chemical production.
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Affiliation(s)
- Peter McNeice
- Queen's University Ionic Liquids Laboratories and
- The School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
| | - Patricia C. Marr
- Queen's University Ionic Liquids Laboratories and
- The School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
| | - Andrew C. Marr
- Queen's University Ionic Liquids Laboratories and
- The School of Chemistry and Chemical Engineering
- Queen's University Belfast
- Belfast
- UK
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3
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Damilano G, Kalebić D, Binnemans K, Dehaen W. One-pot synthesis of symmetric imidazolium ionic liquids N, N-disubstituted with long alkyl chains. RSC Adv 2020; 10:21071-21081. [PMID: 35518762 PMCID: PMC9054310 DOI: 10.1039/d0ra03358h] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 05/14/2020] [Indexed: 11/21/2022] Open
Abstract
The Debus–Radziszewski imidazole synthesis was adapted to directly yield long-chain imidazolium ionic liquids. Imidazolium acetate ionic liquids with side-chains up to sixteen carbon atoms were synthesised in excellent yields via an on-water, one-pot reaction. The imidazolium acetate ILs acted as surfactants when dissolved in various solvents. The imidazolium acetate ionic liquids were also derivatised via an acid metathesis to the chloride, nitrate, and hydrogen oxalate derivatives. The thermal behaviour of all the ionic liquids was determined via thermogravimetric and calorimetric analysis. The modified Debus–Radziszewski reaction was used as a one-pot on-water reaction to allow a greener synthesis of long-chain 1,3-dialkylimidazolium acetate ionic liquids in high yield from long-chain linear amines.![]()
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Affiliation(s)
- Giacomo Damilano
- KU Leuven, Department of Chemistry Celestijnenlaan 200F - P.O. Box 2404 B-3001 Leuven Belgium
| | - Demian Kalebić
- KU Leuven, Department of Chemistry Celestijnenlaan 200F - P.O. Box 2404 B-3001 Leuven Belgium
| | - Koen Binnemans
- KU Leuven, Department of Chemistry Celestijnenlaan 200F - P.O. Box 2404 B-3001 Leuven Belgium
| | - Wim Dehaen
- KU Leuven, Department of Chemistry Celestijnenlaan 200F - P.O. Box 2404 B-3001 Leuven Belgium
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4
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Easton ME, Choudhary H, Rogers RD. Azolate Anions in Ionic Liquids: Promising and Under-Utilized Components of the Ionic Liquid Toolbox. Chemistry 2019; 25:2127-2140. [PMID: 30230057 DOI: 10.1002/chem.201802957] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2018] [Revised: 08/28/2018] [Indexed: 12/26/2022]
Abstract
Owing to their ease of synthesis, diffuse positive charge, and chemical stability, 1-alkyl-3-methylimidazolium cations (i.e., [Cn mim]+ ) are one of the most routinely utilized and historically important components in ionic liquid (IL) chemistry. However, while this is a routinely encountered member of the IL family as cations, relatively few workers have explored the versatile chemistry of azoles to allow their use as an anionic component in ILs, as azolates. Azolate anions possess many of the desired properties for IL formation, including a diffuse ionic charge, tailorable asymmetry, and synthetic flexibility, with the added advantages of not relying on halogen atoms for electron-withdrawing effects, as is commonly encountered with IL anions such as hexafluorophosphate. This review explores the 122 azolate-containing ILs known in the literature (prepared from only 39 disparate azolate anions), with a view to highlighting not only their demonstrated utility as an IL component, but the ways in which the larger scientific community may utilize their advantageous properties for new tailored materials.
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Affiliation(s)
- Max E Easton
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada
| | - Hemant Choudhary
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.,College of Arts & Sciences, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487, USA
| | - Robin D Rogers
- Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC H3A 0B8, Canada.,College of Arts & Sciences, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487, USA
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6
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Tamboli RS, Shidore MM, Dash RC, Kanhed AM, Patel NR, Shah SR, Yadav MR. Improved Rapid and Green Synthesis of N
-Aryl Piperazine Hydrochlorides Using Synergistic Coupling of Hydrated Task Specific Ionic Liquid ([BbIm]OH) and Microwave Irradiation. ChemistrySelect 2019. [DOI: 10.1002/slct.201803237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Riyaj S. Tamboli
- Faculty of Pharmacy, Kalabhavan Campus; The Maharaja Sayajirao University of Baroda; Vadodara- 390001, Gujarat India
| | - Mahesh M. Shidore
- Faculty of Pharmacy, Kalabhavan Campus; The Maharaja Sayajirao University of Baroda; Vadodara- 390001, Gujarat India
| | - Radha Charan Dash
- Visiting research associate, Faculty of Pharmacy, Kalabhavan Campus; The Maharaja Sayajirao University of Baroda; Vadodara 390 001, Gujarat India
| | - Ashish M. Kanhed
- Faculty of Pharmacy, Kalabhavan Campus; The Maharaja Sayajirao University of Baroda; Vadodara- 390001, Gujarat India
| | - Nirav R. Patel
- Faculty of Pharmacy, Kalabhavan Campus; The Maharaja Sayajirao University of Baroda; Vadodara- 390001, Gujarat India
| | - Shailesh R. Shah
- Department of Chemistry, Faculty of Science, Sayajiganj; The Maharaja Sayajirao University of Baroda; Vadodara 390 001, Gujarat India
| | - Mangeram Ram Yadav
- Faculty of Pharmacy, Kalabhavan Campus; The Maharaja Sayajirao University of Baroda; Vadodara- 390001, Gujarat India
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7
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Chiarotto I, Mattiello L, Pandolfi F, Rocco D, Feroci M. NHC in Imidazolium Acetate Ionic Liquids: Actual or Potential Presence? Front Chem 2018; 6:355. [PMID: 30211149 PMCID: PMC6121013 DOI: 10.3389/fchem.2018.00355] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 07/30/2018] [Indexed: 11/13/2022] Open
Abstract
Ionic liquids (ILs) are considered in the majority of cases green solvents, due to their virtually null vapor pressure and to the easiness in recycling them. In particular, imidazolium ILs are widely used in many fields of Chemistry, as solvents or precursors of N-heterocyclic carbenes (NHCs). The latter are easily obtained by deprotonation of the C2-H, usually using strong bases or cathodic reduction. Nevertheless, it is known that weaker bases (e.g., triethylamine) are able to promote C2-H/D exchange. From this perspective, the possibility of deprotonating C2-H group of an imidazolium cation by means of a basic counter-ion was seriously considered and led to the synthesis of imidazolium ILs spontaneously containing NHCs. The most famous of this class of ILs are N,N'-disubstituted imidazolium acetates. Due to the particular reactivity of this kind of ILs, they were appointed as “organocatalytic ionic liquids” or “proto-carbenes.” Many papers report the use of these imidazolium acetates in organocatalytic reactions (i. e., catalyzed by NHC) or in stoichiometric NHC reactions (e.g., with elemental sulfur to yield the corresponding imidazole-2-thiones). Nevertheless, the actual presence of NHC in N,N'-disubstituted imidazolium acetate is still controversial. Moreover, theoretical studies seem to rule out the presence of NHC in such a polar environment as an IL. Aim of this Mini Review is to give the reader an up-to-date overview on the actual or potential presence of NHC in such an “organocatalytic ionic liquid,” both from the experimental and theoretical point of view, without the intent to be exhaustive on N,N'-disubstituted imidazolium acetate applications.
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Affiliation(s)
- Isabella Chiarotto
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza University of Rome, Rome, Italy
| | - Leonardo Mattiello
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza University of Rome, Rome, Italy
| | - Fabiana Pandolfi
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza University of Rome, Rome, Italy
| | - Daniele Rocco
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza University of Rome, Rome, Italy
| | - Marta Feroci
- Dipartimento di Scienze di Base e Applicate per l'Ingegneria, Sapienza University of Rome, Rome, Italy
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Dey P, Koli M, Goswami D, Sharma A, Chattopadhyay S. [bmim][Br] as an Inexpensive and Efficient Medium for the Barbier-Type Allylation Reaction Using a Catalytic Amount of Indium: Mechanistic Studies. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800043] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Papiya Dey
- Bio-Organic Division; Bhabha Atomic Research Centre; 400 085 Mumbai India
| | - Mrunesh Koli
- Bio-Organic Division; Bhabha Atomic Research Centre; 400 085 Mumbai India
| | - Dibakar Goswami
- Bio-Organic Division; Bhabha Atomic Research Centre; 400 085 Mumbai India
| | - Anubha Sharma
- Bio-Organic Division; Bhabha Atomic Research Centre; 400 085 Mumbai India
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9
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Hallett AJ, Placet E, Prieux R, McCafferty D, Platts JA, Lloyd D, Isaacs M, Hayes AJ, Coles SJ, Pitak MB, Marchant S, Marriott SN, Allemann RK, Dervisi A, Fallis IA. Exploring the cellular uptake and localisation of phosphorescent rhenium fac-tricarbonyl metallosurfactants as a function of lipophilicity. Dalton Trans 2018; 47:14241-14253. [DOI: 10.1039/c8dt00669e] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The cellular distribution of amphiphilic rhenium(i) complexes is tuned by the nature of the axial donor.
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Affiliation(s)
- Andrew J. Hallett
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Emeline Placet
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Roxane Prieux
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | | | - James A. Platts
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | | | - Marc Isaacs
- Confocal Microscopy Unit
- Cardiff School of Biosciences
- Cardiff
- UK
| | | | - Simon J. Coles
- UK National Crystallographic Service
- Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton
| | - Mateusz B. Pitak
- UK National Crystallographic Service
- Chemistry
- Faculty of Natural and Environmental Sciences
- University of Southampton
- Southampton
| | | | | | | | - Athanasia Dervisi
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
| | - Ian A. Fallis
- School of Chemistry
- Main Building
- Cardiff University
- Cardiff CF10 3AT
- UK
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10
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Castellan T, Cuyamendous C, Fitremann J, Galano JM, Oger C, Durand T, Guillen F, Génisson Y. 1-Ethyl-3-methylimidazolium tartrate chiral ionic liquids: preparation, characterization and opportunities thereof. NEW J CHEM 2018. [DOI: 10.1039/c8nj03175d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Eight tartrate-based imidazolium salts were obtained as synthetically useful chiral ionic liquids with chirality-dependent physico-chemical properties.
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Affiliation(s)
- Tessa Castellan
- SPCMIB Laboratory
- UMR CNRS 5068, Université Paul Sabatier
- 118 route de Narbonne
- Toulouse
- France
| | - Claire Cuyamendous
- Institut des Biomolécules Max Mousseron
- IBMM, Université de Montpellier
- CNRS
- ENSCM
- France
| | - Juliette Fitremann
- IMRCP Laboratory
- Université de Toulouse
- CNRS UMR 5623
- Université Toulouse III - Paul Sabatier
- 118 route de Narbonne
| | - Jean-Marie Galano
- Institut des Biomolécules Max Mousseron
- IBMM, Université de Montpellier
- CNRS
- ENSCM
- France
| | - Camille Oger
- Institut des Biomolécules Max Mousseron
- IBMM, Université de Montpellier
- CNRS
- ENSCM
- France
| | - Thierry Durand
- Institut des Biomolécules Max Mousseron
- IBMM, Université de Montpellier
- CNRS
- ENSCM
- France
| | - Frédéric Guillen
- SPCMIB Laboratory
- UMR CNRS 5068, Université Paul Sabatier
- 118 route de Narbonne
- Toulouse
- France
| | - Yves Génisson
- SPCMIB Laboratory
- UMR CNRS 5068, Université Paul Sabatier
- 118 route de Narbonne
- Toulouse
- France
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11
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Jiang Y, Wu K, Tan X, Zhang D, Dong W, Li W, Xu G, Zhang W. [bmim]PF6/KOH: A Recyclable Catalytic System for an Azide–Arylacetaldehyde [3 + 2] Cycloaddition. JOURNAL OF CHEMICAL RESEARCH 2017. [DOI: 10.3184/174751917x15094552081152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A fast and green protocol for the synthesis of 1,4-disubstituted 1,2,3-triazoles from azides and arylacetaldehydes at room temperature was developed using [bmim]PF6/KOH as the reaction medium. It was found that the in situ-generated carbene from [bmim]PF6/KOH acted as the catalyst. In the absence of a transition-metal catalyst and organic solvent, this azide–arylacetaldehyde [3 + 2] cycloaddition proceeds efficiently, with high levels of regioselectivity, broad range of substrates, excellent yields and simple operation under mild conditions.
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Affiliation(s)
- Yuqin Jiang
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Kai Wu
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Xuxia Tan
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Dandan Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Wenpei Dong
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Wei Li
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Guiqing Xu
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
| | - Weiwei Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, 453007 Henan, P.R. China
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12
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Hulla M, Bobbink FD, Das S, Dyson PJ. Carbon Dioxide Based N-Formylation of Amines Catalyzed by Fluoride and Hydroxide Anions. ChemCatChem 2016. [DOI: 10.1002/cctc.201601027] [Citation(s) in RCA: 72] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Martin Hulla
- Institut des Sciences et Ingénierie Chimiques; École Polytechnique Fédérale de Lausanne (EPFL); CH-1015 Lausanne Switzerland
| | - Felix D. Bobbink
- Institut des Sciences et Ingénierie Chimiques; École Polytechnique Fédérale de Lausanne (EPFL); CH-1015 Lausanne Switzerland
| | - Shoubhik Das
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Göttingen Germany
| | - Paul J. Dyson
- Institut des Sciences et Ingénierie Chimiques; École Polytechnique Fédérale de Lausanne (EPFL); CH-1015 Lausanne Switzerland
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13
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Lui MY, Yuen AKL, Masters AF, Maschmeyer T. Masked N-Heterocyclic Carbene-Catalyzed Alkylation of Phenols with Organic Carbonates. CHEMSUSCHEM 2016; 9:2312-2316. [PMID: 27528488 DOI: 10.1002/cssc.201600493] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2016] [Indexed: 06/06/2023]
Abstract
An easily prepared masked N-heterocyclic carbene, 1,3-dimethylimidazolium-2-carboxylate (DMI-CO2 ), was investigated as a "green" and inexpensive organocatalyst for the alkylation of phenols. The process made use of various low-toxicity and renewable alkylating agents, such as dimethyl- and diethyl carbonate, in a focused microwave reactor. DMI-CO2 was found to be a very active catalyst and excellent yields of a range of aryl alkyl ethers were obtained under relatively benign conditions. The observed difference in the conversion behavior of phenol methylation, in the presence of either the carbene or 1,8-diazabicycloundec-7-ene (DBU) catalyst, was rationalized on the basis of mechanistic investigations. The primary mode of action for the N-heterocyclic carbene is nucleophilic catalysis. Activation of the dialkyl carbonate electrophile results in concomitant evolution of an organo-soluble alkoxide, which deprotonates the phenolic starting material. In contrast, DBU is initially protonated by the phenol and thus consumed. Subsequent regeneration and participation in nucleophilic catalysis only becomes significant after some phenolate alkylation occurs.
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Affiliation(s)
- Matthew Y Lui
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Alexander K L Yuen
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Anthony F Masters
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry, The University of Sydney, Sydney, NSW, 2006, Australia.
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Guo Z, Cai X, Xie J, Wang X, Zhou Y, Wang J. Hydroxyl-Exchanged Nanoporous Ionic Copolymer toward Low-Temperature Cycloaddition of Atmospheric Carbon Dioxide into Carbonates. ACS APPLIED MATERIALS & INTERFACES 2016; 8:12812-12821. [PMID: 27142654 DOI: 10.1021/acsami.6b02461] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An ionic copolymer catalyst with nanopores, large surface area, high ionic density, and superior basicity was prepared via the radical copolymerization of amino-functionalized ionic liquid bromide and divinylbenzene, followed with a hydroxyl exchange for removing bromonium. Evaluated in chemical fixation of CO2 with epoxides into cyclic carbonates in the absence of any solvent and basic additive, the nanoporous copolymer catalyst showed high and stable activity, superior to various control catalysts including the halogen-containing analogue. Further, high yields were obtained over a wide scope of substrates including aliphatic long carbon-chain alkyl epoxides and internal epoxide, even under atmospheric pressure and less than 100 °C for the majority of the substrates. On the basis of in situ Fourier transform infrared (FT-IR) investigation and density functional theory (DFT) calculation for the reaction intermediates, we proposed a possible reaction mechanism accounting for the superior catalytic activity of the ionic copolymer. The specifically prepared ionic copolymer material of this work features highly stable, noncorrosive, and sustainable catalysis and, thus, may be a new possibility for efficient chemical fixation of CO2 since it is an environmentally friendly, metal-free solid catalyst.
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Affiliation(s)
- Zengjing Guo
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, P. R. China
| | - Xiaochun Cai
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, P. R. China
| | - Jingyan Xie
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, P. R. China
| | - Xiaochen Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, P. R. China
| | - Yu Zhou
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, P. R. China
| | - Jun Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Chemical Engineering, Nanjing Tech University , Nanjing, Jiangsu 210009, P. R. China
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15
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Asadabadi S, Saien J. Effects of pH and salinity on adsorption of different imidazolium ionic liquids at the interface of oil–water. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.10.021] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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16
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Wang X, Li J, Chen G, Guo Z, Zhou Y, Wang J. Hydrophobic Mesoporous Poly(ionic liquid)s towards Highly Efficient and Contamination-Resistant Solid-Base Catalysts. ChemCatChem 2015. [DOI: 10.1002/cctc.201402995] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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17
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Nowicki J, Nosal H, Muszyński M. Hydroxy-Functionalized Basic Ionic Liquids-An Unexpected “Hydroxy” Effect on the Transesterification of Glycerides with Methanol. Chempluschem 2015; 80:648-651. [DOI: 10.1002/cplu.201402366] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2014] [Revised: 11/25/2014] [Indexed: 11/06/2022]
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18
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Vafaeezadeh M, Aboudi J, Hashemi MM. A novel phenolic ionic liquid for 1.5 molar CO2 capture: combined experimental and DFT studies. RSC Adv 2015. [DOI: 10.1039/c5ra09845a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
Abstract
A phenolic ionic liquid (IL) is introduced for carbon dioxide capture with 50% improvement on the absorption capacity compared to the current reported values for phenolic ILs.
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Affiliation(s)
- Majid Vafaeezadeh
- Department of Chemistry and Chemical Engineering
- Malek Ashtar University of Technology
- Tehran
- Iran
- Department of Chemistry
| | - Javad Aboudi
- Department of Chemistry and Chemical Engineering
- Malek Ashtar University of Technology
- Tehran
- Iran
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19
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Maton C, Van Hecke K, Stevens CV. Peralkylated imidazolium carbonate ionic liquids: synthesis using dimethyl carbonate, reactivity and structure. NEW J CHEM 2015. [DOI: 10.1039/c4nj01301h] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Tri- and tetra-alkylimidazoles are quaternised into their corresponding ionic liquids with dimethyl carbonate.
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Affiliation(s)
- C. Maton
- Department of Sustainable Chemistry and Technology
- Ghent University
- 9000 Ghent
- Belgium
| | - K. Van Hecke
- Department of Inorganic and Physical Chemistry
- Ghent University
- 9000 Ghent
- Belgium
| | - C. V. Stevens
- Department of Sustainable Chemistry and Technology
- Ghent University
- 9000 Ghent
- Belgium
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De Vos N, Maton C, Stevens CV. Electrochemical Stability of Ionic Liquids: General Influences and Degradation Mechanisms. ChemElectroChem 2014. [DOI: 10.1002/celc.201402086] [Citation(s) in RCA: 106] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Annese C, D'Accolti L, Fusco C, Tommasi I. Reactivity of 1,3-dimethylimidazolium-2-carboxylate with dimethylcarbonate at high temperature: Unexpected 2-ethyl-functionalisation of the imidazolium moiety and employment of the NHC-CO2/dimethylcarbonate system in a base promoted reaction. CATAL COMMUN 2014. [DOI: 10.1016/j.catcom.2013.11.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Abstract
In the last decade an explosive development has been observed in the fields of both ionic liquids (ILs) as potential chemically inert solvents with many possible technical applications, and N-heterocyclic carbenes (NHCs) as catalysts with superb performance. Since the cations of many ILs can be deprotonated by strong bases yielding NHCs, this two fields are inherently connected. It has only recently been recognized that some of the commonly used basic anions of the ILs (such as acetate) are able to deprotonate azolium cations. While the resulting NHC could clearly be observed in the vapor phase, in the liquid - where the mutual electrostatic interactions within the ion network stabilize the ion pairs - the neutral NHC cannot be detected by commonly used analytical techniques; however, from these ionic liquids NHCs can be trapped, e.g., by complex formation, or more importantly these ILs can be directly used as catalysts, since the NHC content is sufficiently large for these applications. Apart from imidazole-2-ylidenes, the formation of other highly reactive neutral species ("abnormal carbenes," 2-alkylideneimidazoles, pyridine-ylidenes or pyridinium-ylides) is feasible in highly basic ionic liquids. The cross-fertilizing overlap between the two fields may provide access to a great advance in both areas, and we give an overview here on the results published so far, and also on the remaining possibilities and challenges in the concept of "carbenes from ionic liquids."
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Affiliation(s)
- Oldamur Hollóczki
- Wilhelm-Ostwald Institute of Physical and Theoretical Chemistry, University of Leipzig, Linnéstr. 2, 04103, Leipzig, Germany,
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