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Chlipała P, Janeczko T, Mazur M. Bioreduction of 4'-Hydroxychalcone in Deep Eutectic Solvents: Optimization and Efficacy with Various Yeast Strains. Int J Mol Sci 2024; 25:7152. [PMID: 39000255 PMCID: PMC11241015 DOI: 10.3390/ijms25137152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2024] [Revised: 06/21/2024] [Accepted: 06/25/2024] [Indexed: 07/16/2024] Open
Abstract
4'-dihydrochalcones are secondary metabolites isolated from many medicinal plants and from the resin known as 'dragon's blood'. Due to their biological potential, our research objective was to determine the possibilities of using biocatalysis processes carried out in deep eutectic solvents (DESs) to obtain 4'-dihydrochalcones as a model compound. The processes were carried out in a culture of the yeast Yarrowia lipolytica KCh 71 and also in cultures of strains of the genera Rhodotorula and Debaryomyces. Based on the experiments carried out, an optimum process temperature of 35 °C was chosen, and the most suitable DES contained glycerol as a hydrogen bond donor (HBD). For a medium with 30% water content (DES 11), the conversion observed after 24 h exceeded 70%, while increasing the amount of water to 50% resulted in a similar level of conversion after just 1 h. A fivefold increase in the amount of added substrate resulted in a reduction in conversion, which reached 30.3%. Of the other yeast strains tested, Rhodotorula marina KCh 77 and Rhodotorula rubra KCh 4 also proved to be good biocatalysts for the bioreduction process. For these strains, the conversion reached 95.4% and 95.1%, respectively. These findings highlight the potential of yeast as a biocatalyst for the selective reduction of α,β-unsaturated ketones and the possibility of using a DESs as a reaction medium in this process.
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Affiliation(s)
| | | | - Marcelina Mazur
- Department of Food Chemistry and Biocatalysis, Wrocław University of Environmental and Life Sciences, Norwida 25, 50-375 Wrocław, Poland; (P.C.); (T.J.)
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2
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Procopio D, Siciliano C, Perri A, Guillena G, Ramón DJ, Di Gioia ML. Sustainable Synthesis of the Active Pharmaceutical Ingredient Atenolol in Deep Eutectic Solvents. Int J Mol Sci 2024; 25:6677. [PMID: 38928384 PMCID: PMC11203897 DOI: 10.3390/ijms25126677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2024] [Revised: 06/12/2024] [Accepted: 06/15/2024] [Indexed: 06/28/2024] Open
Abstract
Atenolol, one of the top five best-selling drugs in the world today used to treat angina and hypertension, and to reduce the risk of death after a heart attack, faces challenges in current synthetic methods to address inefficiencies and environmental concerns. The traditional synthesis of this drug involves a process that generates a large amount of waste and other by-products that need disposal. This study presents a one-pot DES-based sustainable protocol for synthesizing atenolol. The use of the DES allowed the entire process to be conducted with no need for additional bases or catalysts, in short reaction times, under mild conditions, and avoiding chromatographic purification. The overall yield of atenolol was 95%. The scalability of the process to gram-scale production was successfully demonstrated, emphasizing its potential in industrial applications. Finally, the 'greenness' evaluation, performed using the First Pass CHEM21 Metrics Toolkit, highlighted the superiority in terms of the atom economy, the reaction mass efficiency, and the overall process mass intensity of the DES-based synthesis compared with the already existing methods.
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Affiliation(s)
- Debora Procopio
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (D.P.); (C.S.); (A.P.)
| | - Carlo Siciliano
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (D.P.); (C.S.); (A.P.)
| | - Assunta Perri
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (D.P.); (C.S.); (A.P.)
| | - Gabriela Guillena
- Department of Organic Chemistry, Institute of Organic Synthesis (ISO), University of Alicante, 03080 Alicante, Spain; (G.G.); (D.J.R.)
| | - Diego J. Ramón
- Department of Organic Chemistry, Institute of Organic Synthesis (ISO), University of Alicante, 03080 Alicante, Spain; (G.G.); (D.J.R.)
| | - Maria Luisa Di Gioia
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; (D.P.); (C.S.); (A.P.)
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Pari K, Fazlur-Rahman NK. Copper-catalyzed dehydrogenative cyclization/alkenylation towards dihydroquinolinones. Org Biomol Chem 2024; 22:4163-4171. [PMID: 38716564 DOI: 10.1039/d4ob00134f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
An efficient copper-catalyzed one-pot sequential synthesis of alkenylated quinolinyl dihydroquinolinones is reported, utilizing ketones, 1,3-cyclohexanediones, and benzyl alcohols via dehydrogenative cyclization, followed by alkenylation. This highly straightforward method provides a mild and environmentally friendly approach, and scalable reactions are carried out without generating side products. Furthermore, a plausible reaction mechanism is proposed based on control-experiment studies and reaction monitoring via1H NMR analysis. In addition, the photophysical behavior of the synthesized products showed various responses in the absorption and emission spectra. Upon further examination, compound 4F was found to have acidochromic properties, leading to noticeable colour changes.
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Affiliation(s)
- Keerthana Pari
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632 014, Tamil Nadu, India.
| | - Nawaz Khan Fazlur-Rahman
- Organic and Medicinal Chemistry Research Laboratory, School of Advanced Sciences, Vellore Institute of Technology, Vellore-632 014, Tamil Nadu, India.
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D'Amico F, Papucci C, Franchi D, Reginato G, Taddei M, Mordini A, Zani L, Dessì A, Calamante M. Pd-Catalyzed Miyaura Borylation and Telescopic Borylation/Suzuki-Miyaura Cross-Coupling Processes in Deep-Eutectic Solvents. J Org Chem 2024; 89:6991-7003. [PMID: 38716702 DOI: 10.1021/acs.joc.4c00357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
We report an efficient procedure to carry out palladium-catalyzed Miyaura borylation reactions of (hetero)aromatic halides and triflates in choline chloride (ChCl)-based deep eutectic solvents (DESs). The procedure employs bis(pinacolato)diboron as a boron source and a catalyst prepared in situ from readily available Pd2(dba)3 and the phosphine ligand XPhos. Reactions proceed well in different ChCl-based DESs, among which the best results were provided by environmentally friendly and biodegradable mixtures with glycerol and glucose. The reaction tolerates both EDG and EWG substituents on the substrates and can be run on different halides (chloride, bromide, iodide) and pseudohalides (triflate). Furthermore, for several substrates, the catalyst loading can be reduced to 1 mol % Pd (0.5% mol Pd2(dba)3) without compromising the reaction yield. Moreover, we show that the Miyaura borylation protocol in DES can be combined with a subsequent Suzuki-Miyaura cross-coupling reaction in a one-pot procedure, allowing access to various biaryl products and demonstrating its synthetic utility by preparing the precursors of two compounds with reported applications in the photovoltaics sector. Finally, two green metrics (E-factor and EcoScale) of the new one-pot procedure in DES were calculated and compared with literature values to assess the potential advantages in terms of waste reduction, safety, and energy consumption.
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Affiliation(s)
- Francesco D'Amico
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Costanza Papucci
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
- Department of Chemistry "U. Schiff", University of Florence, 50019 Sesto Fiorentino, Italy
| | - Daniele Franchi
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
| | - Gianna Reginato
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
| | - Maurizio Taddei
- Department of Biotechnology, Chemistry and Pharmacy, University of Siena, 53100 Siena, Italy
| | - Alessandro Mordini
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
- Department of Chemistry "U. Schiff", University of Florence, 50019 Sesto Fiorentino, Italy
| | - Lorenzo Zani
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
| | - Alessio Dessì
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
| | - Massimo Calamante
- Institute of Chemistry of Organometallic Compounds (CNR-ICCOM), 50019 Sesto Fiorentino, Italy
- Department of Chemistry "U. Schiff", University of Florence, 50019 Sesto Fiorentino, Italy
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Di Carmine G, D’Agostino C, Bortolini O, Poletti L, De Risi C, Ragno D, Massi A. Heterogeneous Organocatalysts for Light-Driven Reactions in Continuous Flow. Molecules 2024; 29:2166. [PMID: 38792028 PMCID: PMC11124298 DOI: 10.3390/molecules29102166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Revised: 04/30/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
Within the realm of organic synthesis, photocatalysis has blossomed since the beginning of the last decade. A plethora of classical reactivities, such as selective oxidation of alcohol and amines, redox radical formation of reactive species in situ, and indirect activation of an organic substrate for cycloaddition by EnT, have been revised in a milder and more sustainable fashion via photocatalysis. However, even though the spark of creativity leads scientists to explore new reactions and reactivities, the urgency of replacing the toxic and critical metals that are involved as catalysts has encouraged chemists to find alternatives in the branch of science called organocatalysis. Unfortunately, replacing metal catalysts with organic analogues can be too expensive sometimes; however, this drawback can be solved by the reutilization of the catalyst if it is heterogeneous. The aim of this review is to present the recent works in the field of heterogeneous photocatalysis, applied to organic synthesis, enabled by continuous flow. In detail, among the heterogeneous catalysts, g-CN, polymeric photoactive materials, and supported molecular catalysts have been discussed within their specific sections, rather than focusing on the types of reactions.
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Affiliation(s)
- Graziano Di Carmine
- Department of Environmental and Prevention Sciences, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy;
| | - Carmine D’Agostino
- Department of Chemical Engineering, University of Manchester, Oxford Road, Manchester M13 9PL, UK;
- Department of Civil, Chemical, Environmental, and Materials Engineering, Alma Mater Studiorum—University of Bologna, Via Terracini 28, 40131 Bologna, Italy
| | - Olga Bortolini
- Department of Environmental and Prevention Sciences, University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy;
| | - Lorenzo Poletti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, The University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (L.P.); (C.D.R.); (D.R.); (A.M.)
| | - Carmela De Risi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, The University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (L.P.); (C.D.R.); (D.R.); (A.M.)
| | - Daniele Ragno
- Department of Chemical, Pharmaceutical and Agricultural Sciences, The University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (L.P.); (C.D.R.); (D.R.); (A.M.)
| | - Alessandro Massi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, The University of Ferrara, Via Luigi Borsari 46, 44121 Ferrara, Italy; (L.P.); (C.D.R.); (D.R.); (A.M.)
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Pishro KA, Gonzalez MH. Use of deep eutectic solvents in environmentally-friendly dye-sensitized solar cells and their physicochemical properties: a brief review. RSC Adv 2024; 14:14480-14504. [PMID: 38708112 PMCID: PMC11063684 DOI: 10.1039/d4ra01610f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Accepted: 04/08/2024] [Indexed: 05/07/2024] Open
Abstract
A novel way to mitigate the greenhouse effect is to use dye-sensitized solar cells (DSSCs) to convert carbon dioxide from the air into useful products, such as hydrocarbons, which can also store energy from the sun, a plentiful, clean, and safe resource. The conversion of CO2 can help reduce the impacts of greenhouse gas emissions that contribute to global warming. However, there is a major obstacle in using DSSCs, since many solar devices operate with organic electrolytes, producing pollutants including toxic substances. Therefore, a key research area is to find new eco-friendly electrolytes that can effectively dissolve carbon dioxide. One option is to use deep eutectic solvents (DESs), which are potential substitutes for ionic liquids (ILs) and have similar advantages, such as being customizable, economical, and environmentally friendly. DESs are composed of low-cost materials and have very low toxicity and high biodegradability, making them suitable for use as electrolytes in DSSCs, within the framework of green chemistry. The purpose of this brief review is to explore the existing knowledge about how CO2 dissolves in DESs and how these solvents can be used as electrolytes in solar devices, especially in DSSCs. The physical and chemical properties of the DESs are described, and areas are suggested where further research should be focused.
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Affiliation(s)
- Khatereh A Pishro
- São Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences (IBILCE), National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) São José do Rio Preto SP 15054-000 Brazil +55 17 32212512 +55 17 32212512
| | - Mario Henrique Gonzalez
- São Paulo State University (UNESP), Institute of Biosciences, Humanities and Exact Sciences (IBILCE), National Institute for Alternative Technologies of Detection, Toxicological Evaluation and Removal of Micropollutants and Radioactives (INCT-DATREM) São José do Rio Preto SP 15054-000 Brazil +55 17 32212512 +55 17 32212512
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Cherniakova M, Varchenko V, Belikov K. Menthol-Based (Deep) Eutectic Solvents: A Review on Properties and Application in Extraction. CHEM REC 2024; 24:e202300267. [PMID: 37861277 DOI: 10.1002/tcr.202300267] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 09/29/2023] [Indexed: 10/21/2023]
Abstract
In the last 10 years the interest in deep eutectic solvents (DESs) as a new class of green solvents has considerably increased. The emergence of numerous of hydrophobic DESs has stimulated intensive research into their application in extraction technologies, including sample preparation. As the properties of such systems are highly dependent on the properties of their components (hydrogen bond donors and acceptors) and can be finely tuned, DESs can be successfully used for the extraction of both metal ions and organic substances, including biomolecules. Despite the rapidly increasing number of publications on the use of DESs as an extraction medium, including review articles, information on the extraction properties of DESs in terms of their chemical composition has not yet been summarized. This review covers available literature data on the physicochemical properties of menthol-based eutectic solvents and the results of their practical application as an extraction medium. Also, the appropriateness of using the term "DES" for all mixtures with melting points lower than the melting points of their components is discussed.
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Affiliation(s)
- Marharyta Cherniakova
- Department of Analytical Chemistry, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, 60 Nauky Ave., 61072, Kharkiv, Ukraine
| | - Victoria Varchenko
- Department of Analytical Chemistry, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, 60 Nauky Ave., 61072, Kharkiv, Ukraine
| | - Konstantin Belikov
- Department of Analytical Chemistry, State Scientific Institution "Institute for Single Crystals" of National Academy of Sciences of Ukraine, 60 Nauky Ave., 61072, Kharkiv, Ukraine
- School of Chemistry, V.N. Karazin Kharkiv National University, 6 Svobody sq., 61022, Kharkiv, Ukraine
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8
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Oyoun F, Toncheva A, Henríquez LC, Grougnet R, Laoutid F, Mignet N, Alhareth K, Corvis Y. Deep Eutectic Solvents: An Eco-friendly Design for Drug Engineering. CHEMSUSCHEM 2023; 16:e202300669. [PMID: 37463123 DOI: 10.1002/cssc.202300669] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/27/2023] [Accepted: 07/18/2023] [Indexed: 07/20/2023]
Abstract
In the spirit of circular economy and sustainable chemistry, the use of environmentally friendly chemical products in pharmacy has become a hot topic. In recent years, organic solvents have been the subject of a great range of restriction policies due to their harmful effects on the environment and toxicity to human health. In parallel, deep eutectic solvents (DESs) have emerged as suitable greener solvents with beneficial environmental impacts and a rich palette of physicochemical advantages related to their low cost and biocompatibility. Additionally, DESs can enable remarkable solubilizing effect for several active pharmaceutical ingredients (APIs), thus forming therapeutic DESs (TheDESs). In this work, special attention is paid to DESs, presenting a precise definition, classification, methods of preparation, and characterization. A description of natural DESs (NaDESs), i. e., eutectic solvents present in natural sources, is also reported. Moreover, the present review article is the first one to detail the different approaches for judiciously selecting the constituents of DESs in order to minimize the number of experiments. The role of DESs in the biomedical and pharmaceutical sectors and their impact on the development of successful therapies are also discussed.
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Affiliation(s)
- Feras Oyoun
- CNRS, Inserm, Chemical and Biological Techniques for Health (UTCBS), Université Paris Cité, School of Pharmacy, 4 avenue de l'Observatoire, F-75006, Paris, France
- Laboratory of Polymeric & Composite Materials, Materia Nova - Research and Innovative Center, Avenue Copernic 3, B-7000, Mons, Belgium
| | - Antoniya Toncheva
- Laboratory of Polymeric & Composite Materials, Materia Nova - Research and Innovative Center, Avenue Copernic 3, B-7000, Mons, Belgium
| | - Luis Castillo Henríquez
- CNRS, Inserm, Chemical and Biological Techniques for Health (UTCBS), Université Paris Cité, School of Pharmacy, 4 avenue de l'Observatoire, F-75006, Paris, France
| | - Raphael Grougnet
- Natural products, Analysis, Synthesis, UMR CNRS 8038 CiTCoM, Université Paris Cité, School of Pharmacy, F-75006, Paris, France
| | - Fouad Laoutid
- Laboratory of Polymeric & Composite Materials, Materia Nova - Research and Innovative Center, Avenue Copernic 3, B-7000, Mons, Belgium
| | - Nathalie Mignet
- CNRS, Inserm, Chemical and Biological Techniques for Health (UTCBS), Université Paris Cité, School of Pharmacy, 4 avenue de l'Observatoire, F-75006, Paris, France
| | - Khair Alhareth
- CNRS, Inserm, Chemical and Biological Techniques for Health (UTCBS), Université Paris Cité, School of Pharmacy, 4 avenue de l'Observatoire, F-75006, Paris, France
| | - Yohann Corvis
- CNRS, Inserm, Chemical and Biological Techniques for Health (UTCBS), Université Paris Cité, School of Pharmacy, 4 avenue de l'Observatoire, F-75006, Paris, France
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Ni S, Gao Y, Yu G, Zhang S, Zeng Z, Sun X. A sustainable strategy for targeted extraction of thorium from radioactive waste leachate based on hydrophobic deep eutectic solvent. JOURNAL OF HAZARDOUS MATERIALS 2023; 460:132465. [PMID: 37703731 DOI: 10.1016/j.jhazmat.2023.132465] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/24/2023] [Accepted: 08/31/2023] [Indexed: 09/15/2023]
Abstract
In this work, the new hydrophobic deep eutectic solvents (HDESs) based on 2-hexyldecanoic acid (HDA) as a hydrogen bond donor (HBD) were used to selectively enrich trace Th from radioactive waste leach solution. These HDESs are characterized by low toxicity, bio-friendliness, low viscosity and sufficient hydrophobicity. Compared with Al, Mg, Ca and RE, HDESs exhibited exceptional selectivity for Th extraction, along with high loading capacity, easy stripping and stable reusability. The mechanism of Th extraction by the HDES is a cation exchange reaction. Based on the thymol (TL):HDA (1:3) HDES, a short flow closed-loop recovery process of Th in the leach solution of radioactive waste residue was developed. After a single-step extraction, the extraction percentage (E%) of Th exceeded 98.0%, while the E% of other elements was less than 0.14%. After stripping, the concentration of Th in the concentrated solution reached 2.16 × 103 mg/L with a purity of 74.2%, which could be directly used for subsequent purification. By adjusting the pH to 4.00, the raffinate was used as a feed solution for RE elements recovery. The HDES-based extraction strategy for Th is simple, safe, efficient and environmentally friendly, providing a new idea for the recovery of radioactive waste residues.
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Affiliation(s)
- Shuainan Ni
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Research Center for Rare Earth Engineering Technology, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Yun Gao
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Research Center for Rare Earth Engineering Technology, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Guisu Yu
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Research Center for Rare Earth Engineering Technology, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, PR China
| | - Sijia Zhang
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Research Center for Rare Earth Engineering Technology, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, PR China; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, PR China
| | - Zhiyuan Zeng
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Research Center for Rare Earth Engineering Technology, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China
| | - Xiaoqi Sun
- CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, PR China; Fujian Research Center for Rare Earth Engineering Technology, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, Xiamen 361021, PR China; University of Chinese Academy of Sciences, Beijing 100049, PR China; Jiangxi Province Key Laboratory of Cleaner Production of Rare Earths, Ganjiang Innovation Academy, Chinese Academy of Sciences, Ganzhou, Jiangxi 341000, PR China.
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10
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Tarif E, Das N, Sen P. Does Viscosity Decoupling Guarantee Dynamic Heterogeneity? A Clue through an Excitation and Emission Wavelength-Dependent Time-Resolved Fluorescence Anisotropy Study. J Phys Chem B 2023; 127:7162-7173. [PMID: 37549044 DOI: 10.1021/acs.jpcb.3c00334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/09/2023]
Abstract
Traditionally, deviation from Stokes-Einstein-Debye (SED) relation in terms of viscosity dependence of medium dynamics, i.e., τ x ∝ ( η T ) p with p ≠ 1, is taken as a signature of dynamic heterogeneity. However, it does not guarantee medium heterogeneity, as the decoupling may also originate from the deviation of the basic assumption of SED. Here, we developed a method to find a stronger relation between viscosity decoupling (p ≠ 1) and dynamic heterogeneity in terms of rotational motion. Our approach exploited the fact that in heterogeneous media, a solvatochromic probe will be solvated to a different extent at different microdomains (subpopulations), and photoselection of these subpopulations can be achieved by excitation or emission wavelength-dependent measurements. We hypothesized that the dynamics of a homogeneous system might show viscosity decoupling, but the extent of decoupling at different excitations (or at different emissions) should not be different. On the other hand, in a heterogeneous medium, this extent of viscosity decoupling (p-value) should be different at different excitations (or at different emissions). As proof of concept, we investigated three versatile solvent media: squalane (viscous molecular liquid), 1-ethyle-3-methylimidazolium ethyl sulfate ionic liquid (IL), and [0.78 acetamide + 0.22 LiNO3] deep eutectic solvent (DES). We found that squalane is homogeneous, although it shows fractional viscosity dependence (p ≠ 1). Interestingly, mild heterogeneity in IL and significant heterogeneity in the DES were observed. Overall, we conclude that the difference in the p-value as a function of excitation (or emission) wavelength-dependent might be a superior way for the detection of dynamic heterogeneity.
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Affiliation(s)
- Ejaj Tarif
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, Uttar Pradesh, India
| | - Nilimesh Das
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, Uttar Pradesh, India
| | - Pratik Sen
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208 016, Uttar Pradesh, India
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El Baraka Y, Hamdoun G, El Brahmi N, El Kazzouli S. Unlocking the Potential of Deep Eutectic Solvents for C-H Activation and Cross-Coupling Reactions: A Review. Molecules 2023; 28:4651. [PMID: 37375204 DOI: 10.3390/molecules28124651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 06/05/2023] [Accepted: 06/05/2023] [Indexed: 06/29/2023] Open
Abstract
Green chemistry principles have underpinned the development of deep eutectic solvents (DESs). In this brief overview, we discuss the potential of DESs as a greener alternative to volatile organic solvents for cross-coupling and C-H activation reactions in organic chemistry. DESs offer numerous benefits, such as easy preparation, low toxicity, high biodegradability, and the potential to replace volatile organic compounds. The ability of DESs to recover the catalyst-solvent system enhances their sustainability. This review highlights recent advances and challenges in utilizing DESs as a reaction media, as well as the impact of physicochemical properties on the reaction process. Several types of reactions are studied to highlight their effectiveness at promoting C-C bond formation. Aside from demonstrating the success of DESs in this context, this review also discusses the limitations and future prospects of DESs in organic chemistry.
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Affiliation(s)
- Yassine El Baraka
- Euromed Research Center, Euromed Faculty of Pharmacy, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF), Meknes Road, Fez 30000, Morocco
| | - Ghanem Hamdoun
- Euromed Research Center, Euromed Faculty of Pharmacy, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF), Meknes Road, Fez 30000, Morocco
| | - Nabil El Brahmi
- Euromed Research Center, Euromed Faculty of Pharmacy, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF), Meknes Road, Fez 30000, Morocco
| | - Saïd El Kazzouli
- Euromed Research Center, Euromed Faculty of Pharmacy, School of Engineering in Biomedical and Biotechnology, Euromed University of Fes (UEMF), Meknes Road, Fez 30000, Morocco
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12
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Rodríguez-Llorente D, Martín-Gutiérrez D, Suárez-Rodríguez P, Navarro P, Álvarez-Torrellas S, García J, Larriba M. Sustainable recovery of phenolic antioxidants from real olive vegetation water with natural hydrophobic eutectic solvents and terpenoids. ENVIRONMENTAL RESEARCH 2023; 220:115207. [PMID: 36603659 DOI: 10.1016/j.envres.2022.115207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/25/2022] [Accepted: 12/31/2022] [Indexed: 06/17/2023]
Abstract
Olive oil production leads to the generation of olive mill wastewater (OMWW). Due to the presence of phenolic compounds, they are difficult to process, but they represent a source of high-added value chemicals since they have antioxidant and therapeutic properties. This work has studied the extraction of phenolic compounds from a type of OMWW, olive vegetation water, which presents these compounds in a more diluted dosage than in other studied to date, to revalue this waste stream. A real olive vegetation water from a Spanish olive oil producer was used, and liquid-liquid extraction was applied. Terpenoids and terpene-based hydrophobic eutectic solvents were systematically used to extract phenolic compounds following the concentrations of tyrosol, catechol, caffeic acid, and total phenolic content. By molecular simulation with the COSMO-RS method, 4 terpenoids, and 2 eutectic solvents were selected and compared with 2 conventional solvents. The Solvent/Feed ratio in the extraction of phenolic compounds was studied, showing that the solvents with the highest extraction results were geraniol, eucalyptol, and eutectic solvent menthol + camphor, which outperformed conventional solvents methyl isobutyl ketone and diisopropyl ether. Menthol + camphor gave total phenol extraction yields of 88.73% at a Solvent/Feed ratio in volume of 0.50, surpassing all solvents tested. A solvent reuse and regeneration process was applied by back-extraction of the 4 solvents: FTIR results showed the stability of the solvents while maintaining yields in the solvent reuse process. The phenolic compounds could be concentrated in the alkaline phase to factors up to 49.3 to the initial concentration in olive vegetation water. The alkaline phases were neutralized to obtain a precipitate with a caffeic acid content of up to 26 % wt%, and a tyrosol-rich supernatant with a concentration of up to 6.54 g/L. This work proposes a process using natural solvents to extract phenolic compounds from olive vegetation water.
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Affiliation(s)
- Diego Rodríguez-Llorente
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Diego Martín-Gutiérrez
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Pablo Suárez-Rodríguez
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Pablo Navarro
- Department of Chemical Engineering, Autonomous University of Madrid, C/ Francisco Tomás y Valiente 7, 28049, Madrid, Spain
| | - Silvia Álvarez-Torrellas
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Juan García
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain
| | - Marcos Larriba
- Catalysis and Separation Processes Research Group (CyPS), Department of Chemical Engineering and Materials, Complutense University of Madrid, Avda. Complutense S/n, 28040, Madrid, Spain.
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13
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Arora H, Dhiman D, Kumar K, Venkatesu P. Fortification of thermal and structural stability of hemoglobin using choline chloride-based deep eutectic solvents. Phys Chem Chem Phys 2022; 24:29683-29692. [PMID: 36453254 DOI: 10.1039/d2cp03407g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Of late, DESs have occupied the centre stage due to their eco-friendly and resource-efficient nature and their low toxicity. In this work, we have investigated the structural and thermal stability of hemoglobin (Hb) in two choline chloride ([Ch]Cl)-based DESs namely urea [Ch]Cl-urea (DES1) and [Ch]Cl-glycerol (Gly); (DES 2). Different biophysical techniques reveal that the presence of DESs facilitates the stability of Hb in a concentration-dependent manner and the extent of stability is more pronounced in [Ch]Cl-Gly as compared to [Ch]Cl-urea. Additionally, for a better understanding of the role of DESs in modulating the thermal and structural stability of Hb, studies have been performed on Hb in the presence of individual constituents of DESs, i.e., [Ch]Cl, urea, and Gly. Altogether, it was observed that the effect on the stability of Hb was by the presence of the DESs rather than their individual constituents. For instance, urea itself is a destabilizing co-solvent for biomolecules. However, the harmful effects of urea were surpassed when a DES is formed in the presence of [Ch]Cl. Therefore, overall, it can be concluded that both DESs can be described as potential non-harmful, green, and promising solvents for enhancing the structural and thermal stability of Hb.
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Affiliation(s)
- Harshita Arora
- Department of Chemistry, University of Delhi, Delhi, 110 007, India.
| | - Diksha Dhiman
- Department of Chemistry, University of Delhi, Delhi, 110 007, India.
| | - Krishan Kumar
- Department of Chemistry, University of Delhi, Delhi, 110 007, India. .,Department of Biological Engineering, Inha University, Incheon, 22212, Republic of Korea
| | - Pannuru Venkatesu
- Department of Chemistry, University of Delhi, Delhi, 110 007, India.
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14
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Antenucci A, Bonomo M, Ghinato S, Blangetti M, Dughera S. Design of a New Chiral Deep Eutectic Solvent Based on 3-Amino-1,2-propanediol and Its Application in Organolithium Chemistry. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238566. [PMID: 36500673 PMCID: PMC9738533 DOI: 10.3390/molecules27238566] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/03/2022] [Revised: 12/02/2022] [Accepted: 12/02/2022] [Indexed: 12/12/2022]
Abstract
A chiral glycerol derivative, namely 3-amino-1,2-propanediol, was employed for as the hydrogen bond donor (HBD) in the design of a new deep eutectic solvent (DES) with choline chloride acting as the hydrogen bond acceptor (HBA). The novel mixture was characterized and unambiguously classified as a DES. Furthermore, its synthetic usefulness was demonstrated in the room-temperature n-butyllithium-addition under air to carbonyl compounds and benzyl chloride. In some cases, pure products (100% conversion) were obtained by a simple extractive work-up in up to 72% isolated yield, thus suggesting the potential practical usefulness of this procedure as a green alternative to the classical Schenk procedure in volatile organic solvents for the synthesis of tertiary alcohols. The chirality of the HBD, bearing an interesting basic primary amino group, is an intriguing feature currently under investigation for further exploitation.
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Affiliation(s)
- Achille Antenucci
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
- Centro Ricerche per la Chimica Fine s.r.l. for Silvateam s.p.a., Via Torre 7, 12080 San Michele Mondovì, Italy
- Correspondence: (A.A.); (M.B.); (S.D.)
| | - Matteo Bonomo
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
- NIS Interdepartmental Centre and INSTM Reference Centre, Università degli Studi di Torino, Via Gioacchino Quarello 15/a, 10125 Torino, Italy
- Correspondence: (A.A.); (M.B.); (S.D.)
| | - Simone Ghinato
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
| | - Marco Blangetti
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
| | - Stefano Dughera
- Department of Chemistry, Università degli Studi di Torino, Via Pietro Giuria 7, 10125 Torino, Italy
- Correspondence: (A.A.); (M.B.); (S.D.)
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15
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Enzyme-inspired dry-powder polymeric catalyst for green and fast pharmaceutical manufacturing processes. CATAL COMMUN 2022. [DOI: 10.1016/j.catcom.2022.106537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
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16
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Abbasi S, Reza Naimi‐Jamal M, Javanshir S, Heydari A. Selective Oxidation of Alcohols through Fe 3 O 4 @SiO 2 /K 2 CO 3 -Glycerin Deep Eutectic Solvent as a Heterogeneous Catalytic System. Chemistry 2022; 11:e202200172. [PMID: 36457168 PMCID: PMC9716035 DOI: 10.1002/open.202200172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 10/15/2022] [Indexed: 12/03/2022]
Abstract
K2 CO3 /Glycerin as a deep eutectic solvent (DES) was anchored covalently onto functionalized magnetic nanoparticles and showed a significant activity towards the oxidation of various alcohols under mild conditions with a short reaction time and good to high yield. A combination of the magnetic nanoparticles and deep eutectic solvent offers a novel, green, reusable catalyst with easy separation. Also, the catalyst structure was well characterized using techniques such as FT-IR spectroscopy, XRD, SEM, TGA, BET, VSM, TEM, and energy-dispersive X-ray spectroscopy (EDS).
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Affiliation(s)
- Sepideh Abbasi
- Research Laboratory of Green Organic Synthesis & PolymersDepartment of ChemistryIran University of Science and Technology (IUST)16846-13114TehranIran
| | - Mohammad Reza Naimi‐Jamal
- Research Laboratory of Green Organic Synthesis & PolymersDepartment of ChemistryIran University of Science and Technology (IUST)16846-13114TehranIran
| | - Shahrzad Javanshir
- Heterocyclic Chemistry Research LaboratoryChemistry DepartmentIran University of Science and Technology16846-13114TehranIran
| | - Akbar Heydari
- Chemistry DepartmentTarbiat Modares University14155-4838TehranIran
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17
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Cicco L, Roggio M, López‐Aguilar M, Ramos‐Martín M, Perna FM, García‐Álvarez J, Vitale P, Capriati V. Selective Aerobic Oxidation of Alcohols in Low Melting Mixtures and Water and Use for Telescoped One-Pot Hybrid Reactions. Chemistry 2022; 11:e202200160. [PMID: 36229408 PMCID: PMC9560898 DOI: 10.1002/open.202200160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 09/08/2022] [Indexed: 11/30/2022]
Abstract
An efficient, selective and sustainable protocol was developed for the CuCl2/TEMPO/TMEDA‐catalyzed aerobic oxidation of activated alcohols to the corresponding carbonyl compounds using water or the environmentally friendly low melting mixture (LMM) d‐fructose‐urea as the reaction medium. Such oxidation reactions proceed under mild (room temperature or 40 °C) and aerobic conditions, with the carbonyl derivatives isolated in up to 98 % yield and within 4 h reaction time when using the above‐mentioned LMM. The potential application of this methodology is demonstrated by setting up useful telescoped, one‐pot two‐step hybrid transformations for the direct conversion of primary alcohols either into secondary alcohols or into valuable nitroalkenes, by combining oxidation processes with nucleophilic additions promoted by highly polarized organometallic compounds (Grignard and organolithium reagents) or with nitroaldol (Henry) reactions, respectively.
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Affiliation(s)
- Luciana Cicco
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Marianna Roggio
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Marcos López‐Aguilar
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Universidad de Oviedo33071OviedoSpain
| | - Marina Ramos‐Martín
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Universidad de Oviedo33071OviedoSpain
| | - Filippo Maria Perna
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Joaquín García‐Álvarez
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Universidad de Oviedo33071OviedoSpain
| | - Paola Vitale
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
| | - Vito Capriati
- Dipartimento di Farmacia-Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 470125BariItaly
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18
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Lipase-mediated Baeyer-Villiger oxidation of benzylcyclopentanones in ester solvents and deep eutectic solvents. Sci Rep 2022; 12:14795. [PMID: 36042323 PMCID: PMC9427991 DOI: 10.1038/s41598-022-18913-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 08/22/2022] [Indexed: 11/08/2022] Open
Abstract
This work presents the chemo-enzymatic Baeyer-Villiger oxidation of α-benzylcyclopentanones in ester solvents as well as deep eutectic solvents (DES). In the first part of the work the effect of selected reaction conditions on the reaction rate was determined. The oxidation process was most effective in ethyl acetate at 55 °C, with the use of lipase B from Candida antarctica immobilized on acrylic resin and UHP as oxidant. Ultimately, these preliminary studies prompted the development of an effective method for the implementation of lipase-mediated Baeyer-Villiger oxidation of benzylcyclopentanones in DES. The highest conversion was indicated when the oxidizing agent was a component of DESs (minimal DESs). The fastest conversion of ketones to lactones was observed in a mixture of choline chloride with urea hydrogen peroxide. In this case, after 3 days, the conversion of the ketones to lactones products exceeded 92% for all substrates. As a result, two new lactones were obtained and fully characterized by spectroscopic data.
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19
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Meyer L, Andersen MB, Kara S. A Deep Eutectic Solvent Thermomorphic Multiphasic System for Biocatalytic Applications. Angew Chem Int Ed Engl 2022; 61:e202203823. [PMID: 35587655 PMCID: PMC9400879 DOI: 10.1002/anie.202203823] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Indexed: 01/13/2023]
Abstract
The applicability of a thermomorphic multiphasic system (TMS) composed of a hydrophobic deep eutectic solvent (DES) and an aqueous potassium phosphate buffer with a lower critical solution temperature (LCST) phase change for homogeneous biocatalysis was investigated. A lidocaine‐based DES with the fatty acid oleic acid as a hydrogen‐bond donor was studied. Phase diagrams were determined and presented within this study. We tested different additional components to the solvent system and observed a decrease in the cloud point of approximately 0.026 °C per concentration unit. Distribution studies revealed a clear distribution of the protein in the aqueous buffer phase (>95 %), whereas the hydrophobic substrate and educt accumulated (>95 %) in the DES‐enriched layer. Finally, a reduction catalyzed by horse liver alcohol dehydrogenase was performed in a larger‐scale experiment, and the biocatalyst could be recycled by simply removing the DES phase for three recycling runs.
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Affiliation(s)
- Lars‐Erik Meyer
- Department of Biological and Chemical Engineering Biocatalysis and Bioprocessing Group Aarhus University Gustav Wieds Vej 10 8000 Aarhus Denmark
| | - Mads Bruno Andersen
- Department of Biological and Chemical Engineering Biocatalysis and Bioprocessing Group Aarhus University Gustav Wieds Vej 10 8000 Aarhus Denmark
| | - Selin Kara
- Department of Biological and Chemical Engineering Biocatalysis and Bioprocessing Group Aarhus University Gustav Wieds Vej 10 8000 Aarhus Denmark
- Institute of Technical Chemistry Leibniz University Hannover Callinstr. 5 30167 Hannover Germany
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20
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Moreno Martínez P, Ortiz-Martínez V, Sánchez Segado S, Salar-García M, de los Ríos A, Hernández Fernández F, Lozano-Blanco L, Godínez C. Deep eutectic solvents for the extraction of fatty acids from microalgae biomass: recovery of omega-3 eicosapentaenoic acid. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.121842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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21
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Meyer L, Andersen MB, Kara S. Ein thermomorphes stark eutektisches Lösungsmittelmehrphasensystem für biokatalytische Anwendungen. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Lars‐Erik Meyer
- Department of Biological and Chemical Engineering Biocatalysis and Bioprocessing Group Aarhus University Gustav Wieds Vej 10 8000 Aarhus Dänemark
| | - Mads Bruno Andersen
- Department of Biological and Chemical Engineering Biocatalysis and Bioprocessing Group Aarhus University Gustav Wieds Vej 10 8000 Aarhus Dänemark
| | - Selin Kara
- Department of Biological and Chemical Engineering Biocatalysis and Bioprocessing Group Aarhus University Gustav Wieds Vej 10 8000 Aarhus Dänemark
- Institut für Technische Chemie Leibniz Universität Hannover Callinstr. 5 30167 Hannover Deutschland
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22
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Poletti L, Ragno D, Bortolini O, Presini F, Pesciaioli F, Carli S, Caramori S, Molinari A, Massi A, Di Carmine G. Photoredox Cross-Dehydrogenative Coupling of N-Aryl Glycines Mediated by Mesoporous Graphitic Carbon Nitride: An Environmentally Friendly Approach to the Synthesis of Non-Proteinogenic α-Amino Acids (NPAAs) Decorated with Indoles. J Org Chem 2022; 87:7826-7837. [PMID: 35621232 PMCID: PMC9207928 DOI: 10.1021/acs.joc.2c00474] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
![]()
Indole-decorated
glycine derivatives are prepared through an environmentally
benign cross-dehydrogenative coupling between N-aryl
glycine analogues and indoles (yield of ≤81%). Merging heterogeneous
organocatalysis and photocatalysis, C–H functionalization has
been achieved by selective C-2 oxidation of N-aryl
glycines to afford the electrophilic imine followed by Friedel–Crafts
alkylation with indole. The sustainability of the process has been
taken into account in the reaction design through the implementation
of a metal-free recyclable heterogeneous photocatalyst and a green
reaction medium. Scale-up of the benchmark reaction (gram scale, yield
of 69%) and recycling experiments (over seven runs without a loss
of efficiency) have been performed to prove the robustness of the
protocol. Finally, mechanistic studies were conducted employing electron
paramagnetic resonance spectroscopy to unveil the roles of the photocatalyst
and oxygen in the formation of odd-electron species.
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Affiliation(s)
- Lorenzo Poletti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Daniele Ragno
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Olga Bortolini
- Department of Environmental and Prevention Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Francesco Presini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Fabio Pesciaioli
- Department of Physical and Chemical Sciences, Università degli Studi dell'Aquila, Via Vetoio, 42, 67100 L'Aquila, Italy
| | - Stefano Carli
- Department of Environmental and Prevention Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Stefano Caramori
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Alessandra Molinari
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Alessandro Massi
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
| | - Graziano Di Carmine
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, Via L. Borsari, 46, 44121 Ferrara, Italy
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23
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Shaibuna M, Theresa LV, Sreekumar K. Neoteric deep eutectic solvents: history, recent developments, and catalytic applications. SOFT MATTER 2022; 18:2695-2721. [PMID: 35348135 DOI: 10.1039/d1sm01797g] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Deep eutectic solvents (DESs) are modified versions of ionic liquids (ILs) and are formed by the fusion of polar components (liquids or solids) via hydrogen bonding interactions. DESs are prepared by the simple mixing of two or three cheap constituents (that are capable of self-association) with gentle heating, which leads to a drastic decrease in their melting points. The resultant clear homogeneous mixture consists of cations, anions, as well as neutral molecules; this will contribute both ionic and molecular solvent properties to the DESs. DESs have emerged as alternatives to conventional organic solvents and ILs, which meet different criteria such as availability, low cost, low toxicity, biodegradability, recyclability, ease of preparation method, tunable, and designer physiochemical properties. Many of them have attracted considerable attention and haave been applied in distinct fields of chemistry. To summarize the full-scale development of DESs, this review discusses the history, classifications, various methods of preparation, properties, and some major applications in catalysis in the last three years. This review is expected to be helpful for the further development of DESs based on a summary of the fundamental research in the field.
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Affiliation(s)
- M Shaibuna
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi-22, Kerala, India.
| | - Letcy V Theresa
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi-22, Kerala, India.
| | - K Sreekumar
- Department of Applied Chemistry, Cochin University of Science and Technology, Kochi-22, Kerala, India.
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24
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Gontrani L, Tagliatesta P, Donia DT, Bauer EM, Bonomo M, Carbone M. Recent Advances in the Synthesis of Inorganic Materials Using Environmentally Friendly Media. Molecules 2022; 27:2045. [PMID: 35408444 PMCID: PMC9000861 DOI: 10.3390/molecules27072045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/15/2022] [Accepted: 03/18/2022] [Indexed: 12/28/2022] Open
Abstract
Deep Eutectic Solvents have gained a lot of attention in the last few years because of their vast applicability in a large number of technological processes, the simplicity of their preparation and their high biocompatibility and harmlessness. One of the fields where DES prove to be particularly valuable is the synthesis and modification of inorganic materials-in particular, nanoparticles. In this field, the inherent structural inhomogeneity of DES results in a marked templating effect, which has led to an increasing number of studies focusing on exploiting these new reaction media to prepare nanomaterials. This review aims to provide a summary of the numerous and most recent achievements made in this area, reporting several examples of the newest mixtures obtained by mixing molecules originating from natural feedstocks, as well as linking them to the more consolidated methods that use "classical" DES, such as reline.
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Affiliation(s)
- Lorenzo Gontrani
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy;
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
| | - Pietro Tagliatesta
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy;
| | - Domenica Tommasa Donia
- Department of Surgical Science, University of Rome Tor Vergata, Via Montpellier 1, 00133 Rome, Italy;
| | - Elvira Maria Bauer
- Italian National Research Council-Institute of Structure of Matter (CNR-ISM), Via Salaria km 29.3, 00015 Monterotondo, Italy;
| | - Matteo Bonomo
- Department of Chemistry, University of Rome “La Sapienza”, P.le A. Moro 5, 00185 Roma, Italy
- Department of Chemistry, NIS Interdepartmental Centre and INSTM Reference Centre, University of Turin, Via Pietro Giuria 7, 10125 Turin, Italy;
| | - Marilena Carbone
- Department of Chemical Science and Technologies, University of Rome Tor Vergata, Via della Ricerca Scientifica 1, 00133 Rome, Italy;
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25
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Jayachandran K, Gupta R, Gupta SK. Redox and emission characteristics of Eu3+ in deep eutectic solvent: Unraveling the hidden potential of DES as luminescent media. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2021.132000] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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26
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Fraenza CC, Elgammal RA, Garaga MN, Bhattacharyya S, Zawodzinski TA, Greenbaum SG. Dynamics of Glyceline and Interactions of Constituents: A Multitechnique NMR Study. J Phys Chem B 2022; 126:890-905. [DOI: 10.1021/acs.jpcb.1c09227] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Carla C. Fraenza
- Department of Physics and Astronomy, Hunter College of CUNY, New York, New York 10065, United States
| | - Ramez A. Elgammal
- Department of Chemical and Biomolecular Engineering, University of Tennessee-Knoxville, Knoxville, Tennessee 37996, United States
| | - Mounesha N. Garaga
- Department of Physics and Astronomy, Hunter College of CUNY, New York, New York 10065, United States
| | - Sahana Bhattacharyya
- Department of Physics and Astronomy, Hunter College of CUNY, New York, New York 10065, United States
| | - Thomas A. Zawodzinski
- Department of Chemical and Biomolecular Engineering, University of Tennessee-Knoxville, Knoxville, Tennessee 37996, United States
| | - Steven G. Greenbaum
- Department of Physics and Astronomy, Hunter College of CUNY, New York, New York 10065, United States
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27
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Quivelli AF, Marinò M, Vitale P, García‐Álvarez J, Perna FM, Capriati V. Ligand-Free Copper-Catalyzed Ullmann-Type C-O Bond Formation in Non-Innocent Deep Eutectic Solvents under Aerobic Conditions. CHEMSUSCHEM 2022; 15:e202102211. [PMID: 34762333 PMCID: PMC9299726 DOI: 10.1002/cssc.202102211] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/11/2021] [Indexed: 05/17/2023]
Abstract
An efficient and novel protocol was developed for a Cu-catalyzed Ullmann-type aryl alkyl ether synthesis by reacting various (hetero)aryl halides (Cl, Br, I) with alcohols as active components of environmentally benign choline chloride-based eutectic mixtures. Under optimized conditions, the reaction proceeded under mild conditions (80 °C) in air, in the absence of additional ligands, with a catalyst [CuI or CuII species] loading up to 5 mol% and K2 CO3 as the base, providing the desired aryloxy derivatives in up to 98 % yield. The potential application of the methodology was demonstrated in the valorization of cheap, easily available, and naturally occurring polyols (e. g., glycerol) for the synthesis of some pharmacologically active aryloxypropanediols (Guaiphenesin, Mephenesin, and Chlorphenesin) on a 2 g scale in 70-96 % yield. Catalyst, base, and deep eutectic solvent could easily and successfully be recycled up to seven times with an E-factor as low as 5.76.
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Affiliation(s)
- Andrea Francesca Quivelli
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Manuela Marinò
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Paola Vitale
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Joaquín García‐Álvarez
- Laboratorio de Química Sintética Sostenible (QuimSinSos)Departamento de Química Orgánica e Inorgánica (IUQOEM)Centro de Innovación en Química Avanzada (ORFEO-CINQA)Universidad de Oviedo33071OviedoSpain
| | - Filippo M. Perna
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
| | - Vito Capriati
- Dipartimento di Farmacia – Scienze del FarmacoUniversità di Bari “Aldo Moro”Consorzio C.I.N.M.P.I.S.Via E. Orabona 4I-70125BariItaly
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28
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Lebedeva O, Kultin D, Kustov L. Electrochemical Synthesis of Unique Nanomaterials in Ionic Liquids. NANOMATERIALS 2021; 11:nano11123270. [PMID: 34947620 PMCID: PMC8705126 DOI: 10.3390/nano11123270] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Revised: 11/24/2021] [Accepted: 11/27/2021] [Indexed: 11/16/2022]
Abstract
The review considers the features of the processes of the electrochemical synthesis of nanostructures in ionic liquids (ILs), including the production of carbon nanomaterials, silicon and germanium nanoparticles, metallic nanoparticles, nanomaterials and surface nanostructures based on oxides. In addition, the analysis of works on the synthesis of nanoscale polymer films of conductive polymers prepared using ionic liquids by electrochemical methods is given. The purpose of the review is to dwell upon an aspect of the applicability of ILs that is usually not fully reflected in modern literature, the synthesis of nanostructures (including unique ones that cannot be obtained in other electrolytes). The current underestimation of ILs as an electrochemical medium for the synthesis of nanomaterials may limit our understanding and the scope of their potential application. Another purpose of our review is to expand their possible application and to show the relative simplicity of the experimental part of the work.
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Affiliation(s)
- Olga Lebedeva
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.L.); (D.K.)
| | - Dmitry Kultin
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.L.); (D.K.)
| | - Leonid Kustov
- Department of Chemistry, Lomonosov Moscow State University, 119991 Moscow, Russia; (O.L.); (D.K.)
- N.D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky Prospect 47, 119991 Moscow, Russia
- Institute of Ecology and Engineering, National Science and Technology University “MISiS”, Leninsky Prospect 4, 119049 Moscow, Russia
- Correspondence: ; Tel.: +7-495-939-5261
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29
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Qiao Q, Shi J, Shao Q. The multiscale solvation effect on the reactivity of β-O-4 of lignin dimers in deep eutectic solvents. Phys Chem Chem Phys 2021; 23:25699-25705. [PMID: 34755736 DOI: 10.1039/d1cp04342k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deep eutectic solvents (DESs) emerge as a medium to enhance the depolymerization of lignin. One critical question is how the solvation of lignin in DESs may affect the reactivity of lignin. To shed light on this question, we investigate the solvation of four lignin dimers in three DES solutions using molecular dynamics simulations and quantum mechanical calculations. The four lignin dimers are composed of guaiacyl and syringyl units and are used as the models for lignin. The three DES solutions are composed of choline, Cl- and three acids: lactic acid, levulinic acid and oxalic acid. We investigate the preferential accumulation of individual DES components in the solvation shells and the exposure area and electrostatic potential of the β-O-4 linkage of the four lignin dimers in the three DESs. The results show that DESs could influence the affinity and nucleophilicity of the β-O-4 linkage through three effects: (1) forming a charged solvation shell, (2) varying the exposure of the β-O-4 linkage and (3) adjusting the electrostatic potential of the β-O-4 linkage. Our simulations indicate a comprehensive and multiscale effect of DESs on lignin decomposition.
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Affiliation(s)
- Qi Qiao
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA.
| | - Jian Shi
- Department of Biosystems and Agricultural Engineering, University of Kentucky, Lexington, Kentucky 40506, USA
| | - Qing Shao
- Department of Chemical and Materials Engineering, University of Kentucky, Lexington, Kentucky 40506, USA.
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30
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Feng X, Wang G, Zheng T, Zuo C, Zhang X, Fyffe P, Chen X. The room-temperature, ambient-pressure conversion of CO 2 into value-added pharmaceutical products quinazoline-2,4(1 H,3 H)-diones. Phys Chem Chem Phys 2021; 23:21130-21138. [PMID: 34528038 DOI: 10.1039/d1cp03747a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
As global warming due to CO2 emissions has become a widely recognized concern, CO2 capture, sequestration, neutralization, and conversion have become possible solutions to address this concern. Among these approaches, the conversion of CO2 into fuels or value-added products has attracted considerable attention. In this work, we report the high-efficiency conversion of CO2 to important industrial raw materials for pharmaceutical compounds, quinazoline-2,4(1H,3H)-diones, via reactions with 2-aminobenzonitriles at room temperature and under ambient pressure, with high conversion yields (91.5-99.3%). 1,8-Diazabicyclo-[5.4.0]-undec-7-ene (DBU), 1,1,3,3-tetramethylguanidine (TMG), and cholinium (Ch) ammonium-based ionic liquids (ILs) are employed as catalysts during the process. Cations with a pKa value near 11.9 and anions with a pKa value range of 10 to 15 are necessary for the reaction. The experimental results indicate that the ionic liquid pair [HDBU+][3-Cl-PhO-] has high efficiency under very mild conditions, obtaining high product yields of 91.5% at 25 °C and 1 atm and 99.3% at 30 °C and 1 atm. More importantly, the catalysts retain high efficiency and activity after 5 consecutive cycles. To gain insightful understanding of the reaction, density functional theory (DFT) calculations were conducted to study the reaction mechanism. The computational results indicate that the catalytic process contains three stages: cyano activation, intramolecular rearrangement, and intramolecular cyclization. Of these, the rate-determining step is cyano activation, which shows an energy barrier of 24.5 kcal mol-1. Tuning the types of ions in ILs can effectively reduce this energy barrier and allow high efficiencies.
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Affiliation(s)
- Xiantao Feng
- Department of Chemistry, University of Missouri, Kansas City, MO, 64110, USA. .,School of Chemistry and Pharmaceutical Engineering, Huanghuai University, NO. 76, Kaiyuan Road, Yicheng Dsitrict, Zhumadian, China
| | - Guan Wang
- School of Chemistry and Pharmaceutical Engineering, Huanghuai University, NO. 76, Kaiyuan Road, Yicheng Dsitrict, Zhumadian, China
| | - Tingting Zheng
- School of Chemistry and Pharmaceutical Engineering, Huanghuai University, NO. 76, Kaiyuan Road, Yicheng Dsitrict, Zhumadian, China
| | - Chunshan Zuo
- School of Chemistry and Pharmaceutical Engineering, Huanghuai University, NO. 76, Kaiyuan Road, Yicheng Dsitrict, Zhumadian, China
| | - Xihong Zhang
- School of Chemistry and Pharmaceutical Engineering, Huanghuai University, NO. 76, Kaiyuan Road, Yicheng Dsitrict, Zhumadian, China
| | - Phoebe Fyffe
- Department of Chemistry, University of Missouri, Kansas City, MO, 64110, USA.
| | - Xiaobo Chen
- Department of Chemistry, University of Missouri, Kansas City, MO, 64110, USA.
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31
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Lanfranco A, Moro R, Azzi E, Deagostino A, Renzi P. Unconventional approaches for the introduction of sulfur-based functional groups. Org Biomol Chem 2021; 19:6926-6957. [PMID: 34333579 DOI: 10.1039/d1ob01091c] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Organosulfur compounds have a pivotal role in the functionalities of many natural products, pharmaceuticals and organic materials. For these reasons, the search for new methodologies for the formation of carbon-sulfur bonds has been the object of intensive work for organic chemists. However, the proposed strategies suffer from various drawbacks, such as volatility, toxicity, and instability of the sulfur sources or the use of VOC solvents. In this review, we summarise the recent protocols which have the goal of obtaining sulfones, thioethers, thiazines, thiazepines and sulfonamides in an unconventional and/or sustainable way. The use of starting materials less invasive and toxic with respect to the traditional reagents, alternative solvents such as water, ionic liquids or deep eutectic solvents, the exploitation of ultrasound and electrochemistry, increasing the efficiency of the process, are reported. Moreover, representative reaction mechanisms are also discussed.
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Affiliation(s)
- Alberto Lanfranco
- Department of Chemistry, University of Torino, Via Giuria, 7, Torino, 10125, Italy.
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32
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Reactive Deep Eutectic Solvents (RDESs): A New Tool for Phospholipase D-Catalyzed Preparation of Phospholipids. Catalysts 2021. [DOI: 10.3390/catal11060655] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The use of Reactive Deep Eutectic Solvents (RDESs) in the preparation of polar head modified phospholipids (PLs) with phospholipase D (PLD)-catalyzed biotransformations has been investigated. Natural phosphatidylcholine (PC) has been submitted to PLD-catalyzed transphosphatidylations using a new reaction medium composed by a mixture of RDES/buffer. Instead of exploiting deep eutectic solvents conventionally, just as the reaction media, these solvents have been designed here in order to contribute actively to the synthetic processes by participating as reagents. RDESs were prepared using choline chloride or trimethyl glycine as hydrogen-bond acceptors and glycerol or ethylene glycol, as hydrogen-bond donors as well as nucleophiles for choline substitution. Specifically designed RDES/buffer reaction media allowed the obtainment of PLs with optimized yields in the perspective of a sustainable process implementation.
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