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Xia W, Anwar A, Wang L, Cao Z, Li B, Nie K, Zhou C, Zhang Y, Han G, Jiang W, Ben H, Zhao T. Microwave-assisted solid-state pretreatment for fabrication of hemp fibres using ethanolamine at low temperature. Carbohydr Polym 2024; 332:121906. [PMID: 38431392 DOI: 10.1016/j.carbpol.2024.121906] [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: 09/27/2023] [Revised: 01/22/2024] [Accepted: 01/31/2024] [Indexed: 03/05/2024]
Abstract
Conventional methods faced challenges in pretreating natural cellulose fibres due to their high energy consumption and large wastewater drainage. This research devised an efficient solid-state pretreatment method for pretreating hemp fibres using ethanolamine (ETA) assisted by microwave (MW) heating. This method produced a notable removal rate of lignin (85.4 %) with the highest cellulose content (83.0 %) at a high solid content (30 %) and low temperature (70 °C). Both FT-IR and XRD analyses indicated that the pretreatment did not alter the structure of cellulose within the hemp fibres but increased crystallinity as the CrI increased from 84 % in raw hemp fibre to 89 % in pretreated fibre. As a result, it produced hemp fibres with impressive fineness (4.6 dtex) and breaking strength (3.81 cN/dtex), meeting the requirement of textile fibre. In addition, an improvement in glucose concentration (15.6 %) was observed in enzymatic hydrolysis of the MW pretreated hemp fibres compared to the fibres pretreated without MW. Furthermore, the FT-IR and NMR data confirmed that the amination of lignin occurred even at low temperature, which contributed to the high lignin removal rate. Thus, this study presents a potentially effective energy-saving, and environmentally sustainable solid-state method for pretreating hemp fibres.
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Affiliation(s)
- Wenying Xia
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Almas Anwar
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Lingyu Wang
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Zhihao Cao
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Boya Li
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Kai Nie
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China; College of Textile, Donghua University, Shanghai 201620, China
| | - Chengfeng Zhou
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Yuanming Zhang
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Guangting Han
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Wei Jiang
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China
| | - Haoxi Ben
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China.
| | - Tao Zhao
- College of Textiles and Clothing, State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao 266000, Shandong, China.
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2
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He F, Hu S, Liu R, Li X, Guo S, Wang H, Tian G, Qi Y, Wang T. Decoding the biological toxicity of phenanthrene on intestinal cells of Eisenia fetida: Effects, toxicity pathways and corresponding mechanisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 904:166903. [PMID: 37683861 DOI: 10.1016/j.scitotenv.2023.166903] [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: 06/24/2023] [Revised: 08/13/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
Phenanthrene is frequently detected and exists extensively in the soil environment, and its residues inevitably impose a significant threat to soil organisms. Exposure to and toxicity of phenanthrene on earthworms has been extensively studied before, however, the possible mechanisms and related pathways associated with phenanthrene-triggered toxicity at the intestinal cell level remain unclear. Herein, primary intestinal cells isolated from Eisenia fetida (Annelida, Oligochaeta) intestine were used as targeted receptors to probe the molecular mechanisms involved in ROS-mediated damaging effects and the potential pathways of phenanthrene-induced toxicity at cellular and sub-cellular levels. Results indicated that phenanthrene exposure induced oxidative stress by activating intracellular ROS (elevated O2-, H2O2, and OH- content) bursts in E. fetida intestinal cells, causing various oxidative damage effects, including lipid peroxidation (increased MDA content), protein oxidation (enhanced PCO levels), and DNA damage (enhanced 8-OHdG levels). The enzymatic and non-enzymatic strategies in earthworm cells were activated to mitigate these detrimental effects by regulating ROS-mediated pathways involving defense regulation. Also, phenanthrene stress destroyed the cell membrane of E. fetida intestinal cells, resulting in cellular calcium homeostasis disruption and cellular energetic alteration, ultimately causing cytotoxicity and cell apoptosis/death. More importantly, the mitochondrial dysfunction in E. fetida cells was induced by phenanthrene-caused mitochondrial membrane depolarization, which in turn caused un-controlled ROS burst and induced apoptosis through mitochondria-mediated caspase-3 activation and ROS-mediated mitochondrial-dependent pathway. Furthermore, exposure to phenanthrene activated an abnormal mRNA expression profile associated with defense regulation (e.g., Hsp70, MT, CRT, SOD, CAT, and GST genes) in E. fetida intestinal cells, resulting in various cellular dysfunctions and pathological conditions, eventually, apoptotic cell death. Taken together, this study offers valuable insights for probing the toxic effects and underlying mechanisms posed by phenanthrene at the intestinal cell level, and is of great significance to estimate the detrimental side effects of phenanthrene on soil ecological health.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Shaoyang Hu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
| | - Xiangxiang Li
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Shuqi Guo
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Hao Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Guang Tian
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Yuntao Qi
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Tingting Wang
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
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3
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Rajput D, Jan G, Karuppasamy M, Bhuvanesh N, Nagarajan S, Maheswari CU, Menéndez JC, Sridharan V. Rapid Assembly of Functionalized 2 H-Chromenes and 1,2-Dihydroquinolines via Microwave-Assisted Secondary Amine-Catalyzed Cascade Annulation of 2- O/ N-Propargylarylaldehydes with 2,6-Dialkylphenols. J Org Chem 2023; 88:11778-11792. [PMID: 37556760 DOI: 10.1021/acs.joc.3c01082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2023]
Abstract
An efficient, secondary amine-catalyzed cascade annulation of 2-O/N-propargylarylaldehydes with 2,6-dialkylphenols was established to access biologically relevant functionalized 2H-chromenes and 1,2-dihydroquinolines tethered with a synthetically useful p-quinone methide scaffold in high yields under microwave irradiation and conventional heating conditions. The microwave-assisted strategy was convenient, clean, rapid, and high yielding in which the reactions were completed in just 15 min, and the yields obtained were up to 95%. This highly atom-economical domino process constructed two new C-C double bonds and a six-membered O/N-heterocyclic ring in a single synthetic operation. Its mechanism process was rationalized as involving sequential iminium ion formation, nucleophilic addition, and intramolecular annulation steps. Furthermore, the synthesized 2H-chromene derivatives were transformed into valuable indeno[2,1-c]chromenes, 5H-indeno[2,1-c]quinolines, and oxireno[2,3-c]chromene via a palladium-catalyzed double C-H bond activation process and epoxidation, respectively.
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Affiliation(s)
- Diksha Rajput
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), District-Samba, Jammu 181143, Jammu and Kashmir, India
| | - Gowsia Jan
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), District-Samba, Jammu 181143, Jammu and Kashmir, India
| | - Muthu Karuppasamy
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), District-Samba, Jammu 181143, Jammu and Kashmir, India
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A & M University, College Station, Texas 77843, United States
| | - Subbiah Nagarajan
- Department of Chemistry, National Institute of Technology, Warangal, Warangal 506004, Telangana, India
| | - C Uma Maheswari
- Department of Chemistry, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur 613401, Tamil Nadu, India
| | - J Carlos Menéndez
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense de Madrid, Madrid 28040, Spain
| | - Vellaisamy Sridharan
- Department of Chemistry and Chemical Sciences, Central University of Jammu, Rahya-Suchani (Bagla), District-Samba, Jammu 181143, Jammu and Kashmir, India
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4
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He F, Liu R. Mechanistic insights into phenanthrene-triggered oxidative stress-associated neurotoxicity, genotoxicity, and behavioral disturbances toward the brandling worm (Eisenia fetida) brain: The need for an ecotoxicological evaluation. JOURNAL OF HAZARDOUS MATERIALS 2023; 450:131072. [PMID: 36857826 DOI: 10.1016/j.jhazmat.2023.131072] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 02/21/2023] [Accepted: 02/21/2023] [Indexed: 06/18/2023]
Abstract
In this study, earthworm (Eisenia fetida) brain was chosen as targeted receptors to probe the mechanisms of oxidative stress-related neurotoxicity, genotoxicity, and behavioral disturbances triggered by PHE. Results showed that PHE stress can initiate significant amounts of ROS, thus triggering oxidative stress in E. fetida brain. These effects were accompanied by a significant increase of damage to macromolecules DNA and lipids, resulting in severe oxidative effects. PHE exposure can induce AChE inhibition by ROS-induced injury and the accumulation of excess ACh at the nicotinic post-synaptic membrane, thus inducing aggravated neurological dysfunction and neurotoxicity of E. fetida through an oxidative stress pathway. Moreover, the burrowing behavior of earthworms was disturbed by oxidative stress-induced neurotoxicity after exposure to PHE. Furthermore, the abnormal mRNA expression profiles of oxidative stress- and neurotoxicity-related genes in worm brain were induced by PHE stress. The IBR results suggested that E. fetida brain was suffered more serious damage caused by PHE under higher doses and long-term exposure. Taken together, PHE exposure can trigger oxidative stress-mediated neurotoxicity and genotoxicity in worm brain and behavioral disorder through ROS-induced damage. This study is of great significance to evaluate the harmful effects of PHE and its mechanisms on soil ecological health.
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Affiliation(s)
- Falin He
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China
| | - Rutao Liu
- School of Environmental Science and Engineering, Shandong University, China-America CRC for Environment & Health, Shandong Province, 72# Jimo Binhai Road, Qingdao, Shandong 266237, PR China.
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5
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Rapid and Simple Microwave-Assisted Synthesis of Benzoxazoles Catalyzed by [CholineCl][Oxalic Acid]. Catalysts 2022. [DOI: 10.3390/catal12111394] [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] Open
Abstract
Microwave irradiation has been used to enhance the reaction yields and selectivities for organic transformation. In this paper, microwave irradiation (MW) was investigated for the environmentally benign synthesis of benzoxazoles through the cyclization of 2-aminophenols and benzaldehydes using deep eutectic solvent (DES) as a catalyst. The [CholineCl][oxalic acid] was easily synthesized from choline chloride with oxalic acid and used without further purification. [CholineCl][oxalic acid] catalyzed the synthesis of benzoxazoles to produce the desired product in a good to excellent conversion and selectivity under MW irradiation. The presence of [CholineCl][oxalic acid] helps to promote the rapid heating transfer from microwave irradiation into the reaction mixture. The [CholineCl][oxalic acid] can be recovered and reused several times without a considerable degradation in catalytic activity.
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6
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Da Lama A, Pérez Sestelo J, Sarandeses LA, Martínez MM. Microwave-assisted direct synthesis of BODIPY dyes and derivatives. Org Biomol Chem 2022; 20:9132-9137. [PMID: 36177899 DOI: 10.1039/d2ob01349e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A microwave-assisted one-pot synthesis of BODIPY dyes from pyrroles and acyl chlorides is reported. This protocol features short reaction times, low temperatures, minimum amount of solvent, scalability, versatility, and good yields of the products. These simple, efficient and sustainable conditions can be also applied to the synthesis of derivatives such as BOPHY, BOAHY and BOPAHY.
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Affiliation(s)
- Ana Da Lama
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - José Pérez Sestelo
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - Luis A Sarandeses
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
| | - M Montserrat Martínez
- Centro de Investigaciones Científicas Avanzadas (CICA) and Departamento de Química, Universidade da Coruña, E-15071 A Coruña, Spain.
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7
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Synthesis and Structure-Activity Relationship Studies of Pyrido [1,2- e]Purine-2,4( 1H,3H)-Dione Derivatives Targeting Flavin-Dependent Thymidylate Synthase in Mycobacterium tuberculosis. Molecules 2022; 27:molecules27196216. [PMID: 36234754 PMCID: PMC9571937 DOI: 10.3390/molecules27196216] [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: 09/06/2022] [Revised: 09/13/2022] [Accepted: 09/20/2022] [Indexed: 11/17/2022] Open
Abstract
In 2002, a new class of thymidylate synthase (TS) involved in the de novo synthesis of dTMP named Flavin-Dependent Thymidylate Synthase (FDTS) encoded by the thyX gene was discovered; FDTS is present only in 30% of prokaryote pathogens and not in human pathogens, which makes it an attractive target for the development of new antibacterial agents, especially against multi-resistant pathogens. We report herein the synthesis and structure-activity relationship of a novel series of hitherto unknown pyrido[1,2-e]purine-2,4(1H,3H)-dione analogues. Several synthetics efforts were done to optimize regioselective N1-alkylation through organopalladium cross-coupling. Modelling of potential hits were performed to generate a model of interaction into the active pocket of FDTS to understand and guide further synthetic modification. All those compounds were evaluated on an in-house in vitro NADPH oxidase assays screening as well as against Mycobacterium tuberculosis ThyX. The highest inhibition was obtained for compound 23a with 84.3% at 200 µM without significant cytotoxicity (CC50 > 100 μM) on PBM cells.
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8
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Rahman M, Ghosh S, Bhattacherjee D, Zyryanov GV, Bagdi AK, Hajra A. Recent Advances in Microwave‐assisted Cross‐Coupling Reactions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Matiur Rahman
- Ural Federal University named after the first President of Russia B N Yeltsin: Ural'skij federal'nyj universitet imeni pervogo Prezidenta Rossii B N El'cina Department of Organic and Biomolecular Chemistry RUSSIAN FEDERATION
| | | | - Dhananjay Bhattacherjee
- Ural Federal University named after the first President of Russia B N Yeltsin: Ural'skij federal'nyj universitet imeni pervogo Prezidenta Rossii B N El'cina Department of Organic and Biomolecular Chemistry RUSSIAN FEDERATION
| | - Grigory V. Zyryanov
- Ural Federal University named after the first President of Russia B N Yeltsin: Ural'skij federal'nyj universitet imeni pervogo Prezidenta Rossii B N El'cina Department of Organic and Biomolecular Chemistry RUSSIAN FEDERATION
| | | | - Alakananda Hajra
- Visva-Bharati Chemistry Santiniketan Road 731235 Santiniketan, Bolpur INDIA
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9
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Development of a palladium-catalyzed decarboxylative arene cross-coupling of pyrrole derivatives in a flow reactor. J Flow Chem 2022. [DOI: 10.1007/s41981-022-00222-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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10
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Synthesis of 5‐Alkynyl and 2,5‐Dialkynyl‐L‐histidines. ChemistrySelect 2022. [DOI: 10.1002/slct.202200264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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11
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Santiago C, Jiménez-Aberasturi X, Leicea E, Lete MG, Sotomayor N, Lete E. Microwave-assisted palladium catalysed C-H acylation with aldehydes: synthesis and diversification of 3-acylthiophenes. Org Biomol Chem 2022; 20:852-861. [PMID: 35001098 DOI: 10.1039/d1ob02176a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The use of MW allows the efficient palladium(II)-catalysed C-3 acylation of thiophenes with aldehydes via C(sp2)-H activation for the synthesis of (cyclo)alkyl/aryl thienyl ketones (43 examples). Compared to standard thermal conditions, the use of MW reduces the reaction time (15 to 30 min vs. 1 to 3 hours), leading to improved yields of the ketones (up to 92%). The control of positional selectivity is achieved by 2-pyridinyl and 2-pyrimidyl ortho-directing groups at C-2 of the thiophene scaffold. To show the synthetic applicability, selected ketones were subjected to further transformations, including intramolecular reactions to directly embed the directing group in the core structure of the new molecule.
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Affiliation(s)
- Carlos Santiago
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Xabier Jiménez-Aberasturi
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Eztizen Leicea
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Marta G Lete
- CIC bioGUNE, Bizkaia Technology Park, Building 801A, Derio 48170, Spain
| | - Nuria Sotomayor
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
| | - Esther Lete
- Departamento de Química Orgánica e Inorgánica, Facultad de Ciencia y Tecnología, Universidad del País Vasco/Euskal Herriko Unibertsitatea UPV/EHU, Apdo. 644, 48080 Bilbao, Spain.
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12
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Majumder S, Ghosh S, Pyne P, Ghosh A, Ghosh D, Hajra A. Synthesis of Unsymmetrical Biheteroarenes via Dehydrogenative and Decarboxylative Coupling: a Decade Update. CHEM REC 2021; 22:e202100288. [PMID: 34970849 DOI: 10.1002/tcr.202100288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 12/22/2022]
Abstract
The design and development of robust and efficient methods for installing one heterocycle with another is endowed as a ubiquitous and powerful synthetic strategy to access complex organic biheterocycles in recent days due to their pervasive applications in medicinal as well as material chemistry. This perspective presents an overview on the recent findings and developments for the synthesis of unsymmetrical biheteroarenes via dehydrogenative and decarboxylative couplings with literature coverage mainly extending from 2011 to 2021. For simplification of the readers, the article has been subcategorized based on the catalysts used in the reactions.
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Affiliation(s)
- Souvik Majumder
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Pranjal Pyne
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Anogh Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Debashis Ghosh
- Department of Chemistry, St. Joseph's College (Autonomous), Bangalore, 560027, Karnataka, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
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13
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Abstract
Most of the traditional methods for organic synthesis have been associated with environmental
concern. The transition from traditional to modern methods of synthesis is mainly based on
principles of green chemistry to achieve better sustainability by reducing the negative impact on
the environment and health. It has been found that the use of microwaves as an energy source in organic
synthesis has a great advantage over conventional heating. Microwave-assisted reactions are
energy efficient and hence, are being considered in the preview of the green chemistry principles.
The use of safer solvents is another important principle of green chemistry. The use of water as a
solvent in organic synthesis has great benefits over the use of hazardous organic solvents in terms
of environment and safety. This compilation will cover the use of both microwave and water simultaneously
in organic reactions.
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Affiliation(s)
- Geetanjali
- Department of Chemistry, Kirori Mal College, University of Delhi, Delhi-110 007, India
| | - Ram Singh
- Department of Applied Chemistry, Delhi Technological University, Delhi-110 042, India
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14
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Li SR, Ren FD, Wang L, Chen YZ. Photocatalytic cascade reactions and dye degradation over CdS-metal-organic framework hybrids. RSC Adv 2021; 11:35326-35330. [PMID: 35493156 PMCID: PMC9043023 DOI: 10.1039/d1ra05957b] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 10/21/2021] [Indexed: 12/18/2022] Open
Abstract
Two bifunctional CdS–MOF composites have been designed and fabricated. The hybrids exhibited synergistic photocatalytic performance toward two cascade reactions under visible light integrating photooxidation activity of CdS and Lewis acids/bases of the MOF. The composite further promoted the photodegradation of dyes benefiting from effective electron transfer between the MOF and CdS. Two bifunctional CdS–MOF composites have been successfully fabricated and exhibited synergistic photocatalytic performance toward two-step cascade reactions and dye photodegradation.![]()
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Affiliation(s)
- Shu-Rong Li
- Department of Chemistry, College of Chemistry and Chemical Engineering, Qingdao University Qingdao Shandong 266071 P. R. China
| | - Feng-Di Ren
- Department of Chemistry, College of Chemistry and Chemical Engineering, Qingdao University Qingdao Shandong 266071 P. R. China
| | - Lin Wang
- Department of Chemistry, College of Chemistry and Chemical Engineering, Qingdao University Qingdao Shandong 266071 P. R. China
| | - Yu-Zhen Chen
- Department of Chemistry, College of Chemistry and Chemical Engineering, Qingdao University Qingdao Shandong 266071 P. R. China
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15
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Rostami A, Ebrahimi A, Sakhaee N, Golmohammadi F, Al-Harrasi A. Microwave-Assisted Electrostatically Enhanced Phenol-Catalyzed Synthesis of Oxazolidinones. J Org Chem 2021; 87:40-55. [PMID: 34581567 DOI: 10.1021/acs.joc.1c01686] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
An electrostatically enhanced phenol is utilized as a straightforward, sustainable, and potent one-component organocatalyst for the atom-economic transformation of epoxides to oxazolidinones under microwave irradiation. Integrating a positively charged center into phenols over a modular one-step preparation gives rise to a bifunctional system with improved acidity and activity, competent in rapid assembly of epoxides and isocyanates under microwave irradiation in a short reaction time (20-60 min). A careful assessment of the efficacy of various positively charged phenols and anilines and the impact of several factors, such as catalyst loading, temperature, and the kind of nucleophile, on catalytic reactivity were examined. Under neat conditions, this one-component catalytic platform was exploited to prepare more than 40 examples of oxazolidinones from a variety of aryl- and alkyl-substituted epoxides and isocyanates within minutes, where up to 96% yield and high degree of selectivity were attained. DFT calculations to achieve reaction barriers for different catalytic routes were conducted to provide mechanistic understanding and corroborated the experimental findings in which concurrent epoxide ring-opening and isocyanate incorporation were proposed.
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Affiliation(s)
- Ali Rostami
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Amirhossein Ebrahimi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Nader Sakhaee
- Roger Adams Laboratory, University of Illinois, 600 South Mathews Avenue, Urbana, Illinois 61801, United States
| | - Farhad Golmohammadi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center (NMSRC), University of Nizwa, Nizwa 616, Sultanate of Oman
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16
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A 1D palladium coordination polymer and its catalytic activity in microwave-assisted Sonogashira reactions. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115229] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Khan S, Baire B. Fe-Catalysed Coupling Reactions Between Alkynes and Alcohols. CHEM REC 2021; 21:3662-3673. [PMID: 34105249 DOI: 10.1002/tcr.202100130] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 12/16/2022]
Abstract
In this review, we discussed about the synthetic developments in the field of Fe-catalysis for the formation of - bonds through the coupling of alkynes and alcohols, for the period of 13 years (2008-2020). These strategies fulfil important Green Chemistry principles, as they are highly atom economic (up to 100 %), no toxic by-products (only water), employs highly abundant and low toxic alcohols (no need for any pre-functionalization hence step economy) and cheaper Fe-catalysts. Having these advantages, one can predict that in the coming years a large number of fascinating new iron-catalyzed reactions will be developed for the organic synthesis. We hope that this review article will be highly useful for the synthetic community to design and develop new Fe-catalyzed coupling reactions and keeps the content in the right prospect.
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Affiliation(s)
- Siddique Khan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Beeraiah Baire
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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18
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Wang YG, Jiang WJ, Shen J, Wang W, Niu YX, Zhao W, Wei XY. Detoxification modification of coal-tar pitch by ultraviolet & microwave radiation-enhanced chemical reaction and toxicity evaluation by chemical index and cytotoxicity assay in vitro. JOURNAL OF HAZARDOUS MATERIALS 2021; 410:124648. [PMID: 33257128 DOI: 10.1016/j.jhazmat.2020.124648] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 11/18/2020] [Accepted: 11/19/2020] [Indexed: 05/13/2023]
Abstract
Although coal tar pitch (CTP) has a large yield in China, its large-scale and effective utilization is significantly hindered because of existing and possibly releasing polycyclic aromatic hydrocarbons (PAHs). Therefore, it is an imminent problem how to prepare an environmentally friendly CTP by detoxification modification. In the investigation, a typical CTP was subjected to structural characterization via solid-state 13C NMR and gas chromatograph/mass spectrometer, which confirmed the existence of dominant PAHs such as fluoranthene, pyrene, as well as benzo[a]pyrene, and few heterocyclic compounds. Subsequently, the CTP was modified using 10-undecenal via alkylation reaction enhanced by ultraviolet & microwave radiation. Compared with the original CTP, the total content of 16 toxic PAHs in the modified CTP decreased with a reduction efficiency of above 90%. According to different environmental standards, toxic equivalent quotient of CTP after modification was reduced by above 90%. In order to veritably and fully evaluate the toxicity of CTP, a living vascular smooth muscle cell (A-10 cell) in vitro was used in the cell counting kit-8 assay. The viability of A-10 cell was always higher when exposed to modified CTP than the original CTP. These results powerfully indicated that the enhanced modification was actually effective and efficient for reducing the toxicity of CTP.
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Affiliation(s)
- Yu-Gao Wang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Wei-Jia Jiang
- College of Basic Medical Sciences, Shanxi University of Chinese Medicine, Taiyuan 030024, Shanxi, China; Institute of Environmental Science, Shanxi University, Taiyuan 030006, Shanxi, China
| | - Jun Shen
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China.
| | - Wei Wang
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Yan-Xia Niu
- College of Chemistry and Chemical Engineering, Taiyuan University of Technology, Taiyuan 030024, Shanxi, China
| | - Wei Zhao
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, Jiangsu, China
| | - Xian-Yong Wei
- Key Laboratory of Coal Processing and Efficient Utilization, Ministry of Education, China University of Mining & Technology, Xuzhou 221116, Jiangsu, China
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19
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Farhid H, Khodkari V, Nazeri MT, Javanbakht S, Shaabani A. Multicomponent reactions as a potent tool for the synthesis of benzodiazepines. Org Biomol Chem 2021; 19:3318-3358. [PMID: 33899847 DOI: 10.1039/d0ob02600j] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Benzodiazepines (BZDs), a diverse class of benzofused seven-membered N-heterocycles, display essential pharmacological properties and play vital roles in some biochemical processes. They have mainly been prescribed as potential therapeutic agents, which interestingly represent various biological activities such as anticancer, anxiolytic, antipsychotic, anticonvulsant, antituberculosis, muscle relaxant, and antimicrobial activities. The extensive biological activities of BZDs in various fields have encouraged medicinal chemists to discover and design novel BZD-based scaffolds as potential therapeutic candidates with the favorite biological activity through an efficient protocol. Although certainly valuable and important, conventional synthetic routes to these bicyclic benzene compounds contain methodologies often requiring multistep procedures, which suffer from waste materials generation and lack of sustainability. By contrast, multicomponent reactions (MCRs) have recently advanced as a green synthetic strategy for synthesizing BZDs with the desired scope. In this regard, MCRs, especially Ugi and Ugi-type reactions, efficiently and conveniently supply various complex synthons, which can easily be converted to the BZDs via suitable post-transformations. Also, MCRs, especially Mannich-type reactions, provide speedy and economic approaches for the one-pot and one-step synthesis of BZDs. As a result, various functionalized-BZDs have been achieved by developing mild, efficient, and high-yielding MCR protocols. This review covers all aspects of the synthesis of BZDs with a particular focus on the MCRs as well as the mechanism chemistry of synthetic protocols. The present manuscript opens a new avenue for organic, medicinal, and industrial chemists to design safe, environmentally benign, and economical methods for the synthesis of new and known BZDs.
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Affiliation(s)
- Hassan Farhid
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Vida Khodkari
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Mohammad Taghi Nazeri
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Siamak Javanbakht
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran.
| | - Ahmad Shaabani
- Faculty of Chemistry, Shahid Beheshti University, G. C., P. O. Box 19396-4716, Tehran, Iran. and Peoples' Friendship University of Russia (RUDN University), 6, Miklukho-Maklaya Street, Moscow, 117198, Russian Federation
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20
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Saini G, Kapur M. Palladium-catalyzed functionalizations of acidic and non-acidic C(sp 3)-H bonds - recent advances. Chem Commun (Camb) 2021; 57:1693-1714. [PMID: 33492315 DOI: 10.1039/d0cc06892f] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A tremendous upsurge has been seen in the recent decade for the proximal and remote functionalization of activated and unactivated substrates via palladium redox pathways. This feature article discusses some of the recent reports on direct as well as indirect C(sp3)-H functionalization via cross-coupling reactions under palladium catalysis. Activated substrates (possessing acidic C(sp3)-H) including enones, ketones, aldehydes, silylenol ethers, esters, silyl ketene acetals, amides, cyano, α-amino esters, and O-carbamates, capable of undergoing cross-coupling reactions at the α-, β-, γ-, δ- and ε-positions, will be discussed. To overcome the challenging task of achieving regioselectivity, a variety of innovative modifications have been reported. The reports of C-H activations based on directing group, and as native functionality have been illustrated at the β-, γ- and δ-positions. Substrates such as α-amino esters, carbonyls, carboxylic acids and their derivatives, afford site-selective C(sp3)-H functionalization via varied-sized reactive metallacycles and are a unique class of substrates whose C(sp3)-H functionalizations were earlier considered as very difficult.
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Affiliation(s)
- Gaurav Saini
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India.
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462066, MP, India.
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21
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Abstract
C-N coupling reactions were found to be attractive among researchers owing to
the importance of C-N bond formation in heterocyclic synthesis. Hence C-N bond formation
via amination reaction with the assistance of microwave radiations gained significant
attraction recently. Microwave-assisted reactions are greener, faster and generally efficient
compared to the conventional thermal reactions offering better purity of the product with
enhancement in the yield. It was surprisingly revealed that several new advancements in
amination reactions were highly influenced by this greener technology. This first review on
microwave-assisted amination reaction focuses on the novel amination strategies that
emerged with the help of microwave methodology, and covers literature up to 2019.
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Affiliation(s)
- Sankaran Radhika
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Mohan Neetha
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Thaipparambil Aneeja
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University, Priyadarsini Hills P.O., Kottayam, Kerala, 686560, India
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22
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Ghosh A, Chattopadhyay SK. Microwave-mediated Synthesis of Medium Ring-sized Heterocyclic Compounds. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213335607666200226101602] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Many medium ring-sized heterocyclic motifs are found in naturally occurring compounds
of significant biological activity which led to the investigation of the biological activity of simpler
heterocyclic compounds accommodating these ring systems. Therefore, the development of newer
synthetic methodologies to access such ring systems has remained an important activity over the last
few decades. However, common methods of their synthesis are usually associated with thermodynamic
disadvantages. Many metal-mediated transformations e.g., Heck reaction, Suzuki reaction, etc.
tend to overcome some of these effects but at the cost of environmental disadvantages. In recent
years, several green chemical techniques have found useful applications in the synthesis of such ring
systems. In particular, the use of microwave technology has provided better opportunities. The present
review attempts to highlight many synthetic approaches developed for the synthesis of such heterocyclic
scaffolds of pharmacological interest involving condensation reaction, coupling reaction,
Multi-component reaction, Cyclo-addition reaction, Dipolar cycloaddition reaction, etc. An emphasis
has also been given on the distinct advantages offered by microwave application over classical approaches,
wherever such knowledge is available.
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Affiliation(s)
- Amrita Ghosh
- Department of Chemistry, University of Kalyani Kalyani-741235, West Bengal, India
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23
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Kamanna K, Khatavi SY. Microwave-accelerated Carbon-carbon and Carbon-heteroatom Bond Formation via Multi-component Reactions: A Brief Overview. CURRENT MICROWAVE CHEMISTRY 2020. [DOI: 10.2174/2213346107666200218124147] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Multi-Component Reactions (MCRs) have emerged as an excellent tool in organic chemistry
for the synthesis of various bioactive molecules. Among these, one-pot MCRs are included, in
which organic reactants react with domino in a single-step process. This has become an alternative
platform for the organic chemists, because of their simple operation, less purification methods, no side
product and faster reaction time. One of the important applications of the MCRs can be drawn in carbon-
carbon (C-C) and carbon-heteroatom (C-X; X = N, O, S) bond formation, which is extensively
used by the organic chemists to generate bioactive or useful material synthesis. Some of the key carbon-
carbon bond forming reactions are Grignard, Wittig, Enolate alkylation, Aldol, Claisen condensation,
Michael and more organic reactions. Alternatively, carbon-heteroatoms containing C-N, C-O,
and C-S bond are also found more important and present in various heterocyclic compounds, which
are of biological, pharmaceutical, and material interest. Thus, there is a clear scope for the discovery
and development of cleaner reaction, faster reaction rate, atom economy and efficient one-pot synthesis
for sustainable production of diverse and structurally complex organic molecules. Reactions that
required hours to run completely in a conventional method can now be carried out within minutes.
Thus, the application of microwave (MW) radiation in organic synthesis has become more promising
considerable amount in resource-friendly and eco-friendly processes. The technique of microwaveassisted
organic synthesis (MAOS) has successfully been employed in various material syntheses,
such as transition metal-catalyzed cross-coupling, dipolar cycloaddition reaction, biomolecule synthesis,
polymer formation, and the nanoparticle synthesis. The application of the microwave-technique in
carbon-carbon and carbon-heteroatom bond formations via MCRs with major reported literature examples
are discussed in this review.
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Affiliation(s)
- Kantharaju Kamanna
- Department of Chemistry, Peptide, and Medicinal Chemistry Research Laboratory, Rani Channamma University, P-B, NH-4, Belagavi-591156, Karnataka, India
| | - Santosh Y. Khatavi
- Department of Chemistry, Peptide, and Medicinal Chemistry Research Laboratory, Rani Channamma University, P-B, NH-4, Belagavi-591156, Karnataka, India
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24
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Macías-Benítez P, Moreno-Dorado FJ, Guerra FM. Microwave-Enhanced Coupling of Carboxylic Acids with Liquid Ketones and Cyclic Ethers Using Tetrabutylammonium Iodide/ t-Butyl Hydroperoxide. J Org Chem 2020; 85:6027-6043. [PMID: 32270681 DOI: 10.1021/acs.joc.0c00519] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The oxidative coupling of carboxylic acids with liquid ketones and cyclic ethers has been accomplished in minutes using t-butyl hydroperoxide in the presence of tetrabutylammonium iodide under microwave irradiation in the absence of a solvent. In addition to drastically shortening the reaction times, the use of microwaves resulted, in general, in yields equal to or higher than those obtained by conventional heating.
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Affiliation(s)
- Pablo Macías-Benítez
- Departamento de Quı́mica Orgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - F Javier Moreno-Dorado
- Departamento de Quı́mica Orgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Francisco M Guerra
- Departamento de Quı́mica Orgánica, Facultad de Ciencias, Universidad de Cádiz, 11510 Puerto Real, Cádiz, Spain
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25
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Song S, Meng Y, Li Q, Wei W. Recent Progress in the Construction of C−N Bonds
via
Metal‐Free Radical C(
sp
3
)−H Functionalization. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000055] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Si‐Zhe Song
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 People's Republic of China
| | - Ya‐Nan Meng
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 People's Republic of China
| | - Qiang Li
- Institution of Functional Organic Molecules and Materials, School of Chemistry and Chemical EngineeringLiaocheng University Liaocheng 252059 People's Republic of China
| | - Wen‐Ting Wei
- State Key Laboratory Base of Novel Functional Materials and Preparation Science, State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products, School of Materials Science and Chemical EngineeringNingbo University Ningbo 315211 People's Republic of China
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26
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Green catalyst-free one-pot synthesis of novel tetrahydropyridine-3-carboxamides by microwave-assisted approach. J CHEM SCI 2020. [DOI: 10.1007/s12039-019-1725-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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27
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Ujwaldev SM, Rohit KR, Radhika S, Anilkumar G. Sonochemistry in Transition Metal Catalyzed Cross-coupling Reactions: Recent Developments. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191118103844] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
:
Transition metal catalyzed cross-coupling reactions have always been very important
in synthetic organic chemistry due to their versatility in forming all sorts of carbon-carbon
and carbon-hetero atom bonds. Incorporation of ultrasound assistance to these protocols resulted
in milder reaction conditions, faster reaction rates, etc. This review focuses on the contributions
made by ultrasound-assisted protocols towards transition metal catalyzed crosscoupling
reactions.
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Affiliation(s)
| | - K. R. Rohit
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Sankaran Radhika
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
| | - Gopinathan Anilkumar
- School of Chemical Sciences, Mahatma Gandhi University, Kottayam, Kerala, 686560, India
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28
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Kerru N, Maddila S, Jonnalagadda SB. Design of Carbon-carbon and Carbon-heteroatom Bond Formation Reactions under Green Conditions. CURR ORG CHEM 2020. [DOI: 10.2174/1385272823666191202105820] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
:The development of C-C and C-heteroatom (C-N, C-O and C-P) bond reactions is a field of significant interest and has received momentous attention in modern organic chemistry. These reactions have been exploited in the synthesis of pharmaceuticals, agrochemicals and molecules of interest in materials science. With the increasing awareness of global warming and the use of renewable energies, it is of paramount importance to reduce the usage of hazardous chemicals in both industrial and academic research and to achieve a healthier environment through green practices. Green chemistry is a rapidly emerging approach that shows us a path for the sustainable growth of future science and technologies. In the recent past, healthy growth has been recorded in a number of organic reactions in aqueous media, which are environment-friendly and energy conserving. This review documents the literature on the development of green methodologies involving the design of C-C, C-O, C-N and C-P bond formations of coupling and condensed reactions. It emphasizes the exceptional practices and important advances achieved using alternative green tools, such as microwave (MW), high-speed ball milling (HSBM) and ultrasound irradiation techniques, and a variety of reusable catalysts and green solvents, with attention to water.
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Affiliation(s)
- Nagaraju Kerru
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Suresh Maddila
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & Physics, University of KwaZulu-Natal, Westville Campus, Chiltern Hills, Durban-4000, South Africa
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29
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Folli A, Choi H, Barter M, Harari J, Richards E, Slocombe D, Porch A, Murphy DM. A novel dual mode X-band EPR resonator for rapid in situ microwave heating. JOURNAL OF MAGNETIC RESONANCE (SAN DIEGO, CALIF. : 1997) 2020; 310:106644. [PMID: 31812887 DOI: 10.1016/j.jmr.2019.106644] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 11/04/2019] [Accepted: 11/08/2019] [Indexed: 06/10/2023]
Abstract
A unique dual mode X-band Continuous Wave (CW) EPR resonator designed for simultaneous EPR measurement and rapid microwave (MW) induced sample heating is described. Chemical reactions subjected to a flow of energy and matter can be perturbed away from the thermodynamic equilibrium by imposing a rapid shock or physical change to the system. Depending on the magnitude of the perturbation, these changes can dictate the subsequent evolution of the entire system, allowing for instance to populate non-equilibrium reactive intermediate states. Temperature jump (T-jump) experiments are a common method to achieve such perturbations. Most T-jump experiments are based on Joule Heating methods or IR lasers. Here we demonstrate the principle of rapid sample heating based on microwaves. The benefits of MW heating include (i) rapid and efficient heating (i.e. using a tuned resonant cavity, >99% efficient power transfer to the sample can be achieved), and (ii) volumetric heating (i.e. the entire sample volume rises in temperature at once, since heat is generated in the sample instead of being transferred to it). Accordingly, the key concept of the design is the use of a cavity resonator allowing EPR detection (at 9.5 GHz) and simultaneous sample heating (at 6.1 GHz). Temperature increments of 50 °C within a few seconds are possible. This is evidenced and illustrated here by probing the temperature-induced variation of the rotational dynamics of 16-doxyl stearic acid methyl ester (16-DSE) spin probe grafted on the surface of sodium dodecyl sulphate (SDS) micelles in water, as well as copper (II) acetylacetonate in chloroform. Rapid changes in the rotational dynamics of the paramagnetic centres provide direct evidence for the in situ and simultaneous EPR measurement-heating capabilities of the resonator. Improvements afforded by the use of pulsed MW sources will enable faster heating time scales to be achieved. In the longer term, this current study demonstrates the simple and direct possibilities for using MW heating as a means of performing T-jump experiments.
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Affiliation(s)
- Andrea Folli
- School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, UK.
| | - Heungjae Choi
- School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA, UK
| | - Michael Barter
- School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA, UK
| | - Jaafar Harari
- School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA, UK
| | - Emma Richards
- School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, UK
| | - Daniel Slocombe
- School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA, UK
| | - Adrian Porch
- School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA, UK
| | - Damien M Murphy
- School of Chemistry, Cardiff University, Park Place, Cardiff CF10 3AT, UK
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30
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Long BF, Qin GF, Huang Q, Xiong T, Mi Y, Hu FL, Yin XH. Homocoupling of arylboronic acids catalyzed by dinuclear copper(I) complexes under mild conditions. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2019. [DOI: 10.1007/s13738-019-01728-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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31
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Khumalo MR, Maddila SN, Maddila S, Jonnalagadda SB. Microwave‐Assisted One‐Step Four‐Component Reaction for Synthesis of 1,4‐Dihydropyridines Catalyzed by Triethylamine. ChemistrySelect 2019. [DOI: 10.1002/slct.201903222] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Mandlenkosi Robert Khumalo
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
| | - Surya Narayana Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
| | - Suresh Maddila
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
| | - Sreekantha B. Jonnalagadda
- School of Chemistry & PhysicsUniversity of KwaZulu-NatalWestville Campus Private Bag X54001 Durban 4000 South Africa
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32
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Lee EJ, Bae J, Choi KM, Jeong NC. Exploiting Microwave Chemistry for Activation of Metal-Organic Frameworks. ACS APPLIED MATERIALS & INTERFACES 2019; 11:35155-35161. [PMID: 31483139 DOI: 10.1021/acsami.9b12201] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Microwave is thought of as a useful electromagnetic radiation tool because it is often used in real life as well as in a variety of chemical processes. Meanwhile, activation of metal-organic frameworks (MOFs), which must be essentially done to remove coordinating and pore-filling solvents before the use of MOFs for various applications, has been performed commonly with the methods of heat supply or solvent exchange. Here, we show a new methodological microwave activation (MA), realizing it with various MOFs such as HKUST-1, UiO-66, and MOF-74s. For instance, microwave irradiation to the MOF samples for 4-35 min leads to the complete activation of the MOFs without structural damage. As described below, we further demonstrate that the solvent-assisted MA, which is the MA process performed after the solvent exchange, can substantially reduce the time for the activation by 4 min.
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Affiliation(s)
- Eun Ji Lee
- Department of Emerging Materials Science , DGIST , Daegu 42988 , Korea
| | - Jinhee Bae
- Department of Emerging Materials Science , DGIST , Daegu 42988 , Korea
| | - Kyung Min Choi
- Department of Chemical and Biological Engineering , Sookmyung Women's University , Seoul 04310 , Korea
| | - Nak Cheon Jeong
- Department of Emerging Materials Science , DGIST , Daegu 42988 , Korea
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33
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Tber Z, Biteau NG, Agrofoglio L, Cros J, Goffinont S, Castaing B, Nicolas C, Roy V. Microwave-Assisted Suzuki-Miyaura and Sonogashira Coupling of 4-Chloro-2-(trifluoromethyl)pyrido[1,2- e
]purine Derivatives. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900921] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Zahira Tber
- Institut de Chimie Organique et Analytique, UMR CNRS 7311; Université d'Orléans; Rue de Chartres - BP 6759, 45067 Orléans cedex 2 France
| | - Nicolas G. Biteau
- Institut de Chimie Organique et Analytique, UMR CNRS 7311; Université d'Orléans; Rue de Chartres - BP 6759, 45067 Orléans cedex 2 France
| | - Luigi Agrofoglio
- Institut de Chimie Organique et Analytique, UMR CNRS 7311; Université d'Orléans; Rue de Chartres - BP 6759, 45067 Orléans cedex 2 France
| | - Julien Cros
- Centre de Biophysique Moléculaire; 45072 Orléans France
| | | | | | - Cyril Nicolas
- Institut de Chimie Organique et Analytique, UMR CNRS 7311; Université d'Orléans; Rue de Chartres - BP 6759, 45067 Orléans cedex 2 France
| | - Vincent Roy
- Institut de Chimie Organique et Analytique, UMR CNRS 7311; Université d'Orléans; Rue de Chartres - BP 6759, 45067 Orléans cedex 2 France
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34
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Onoabedje EA, Okoro UC. Ligand-supported palladium-catalyzed cross-coupling reactions of (hetero) aryl chlorides. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1587778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Uchechukwu Chris Okoro
- Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
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35
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Liu Y, Zhang D, Xiao S, Qi Y, Liu S. Copper‐Catalyzed Homocoupling of Alkyl Halides in the Presence of Samarium. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900254] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yongjun Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Dianming Zhang
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Shuhuan Xiao
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Yan Qi
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
| | - Shufeng Liu
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science Ministry of Education State Key Laboratory Base of Eco-chemical Engineering College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Zhengzhou Rd. #53 Qingdao 266042 P.R. China
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36
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He Y, Narmon T, Wu D, Li Z, Van Meervelt L, Van der Eycken EV. A gold-triggered dearomative spirocarbocyclization/Diels–Alder reaction cascade towards diverse bridged N-heterocycles. Org Biomol Chem 2019; 17:9529-9536. [DOI: 10.1039/c9ob01967g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An efficient chemo- and diastereoselective gold-triggered post-Ugi non-oxidativeortho-dearomative spirocarbocyclization/Diels–Alder reaction cascade sequence has been developed to deliver diverse bridged polycyclic N-heterocycles.
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Affiliation(s)
- Yi He
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Thomas Narmon
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Danjun Wu
- College of Pharmaceutical Science
- Zhejiang University of Technology
- 310014 Hangzhou
- China
| | - Zhenghua Li
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Luc Van Meervelt
- Biomolecular Architecture
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
| | - Erik V. Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC)
- Department of Chemistry
- KU Leuven
- Leuven
- Belgium
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37
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Carden JL, Gierlichs LJ, Wass DF, Browne DL, Melen RL. Unlocking the catalytic potential of tris(3,4,5-trifluorophenyl)borane with microwave irradiation. Chem Commun (Camb) 2019; 55:318-321. [DOI: 10.1039/c8cc09459d] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The catalytic activity of tris(3,4,5-trifluorophenyl)borane has been explored in the 1,2-hydroboration reactions of unsaturated substrates.
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Affiliation(s)
- Jamie L. Carden
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
| | | | - Duncan F. Wass
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
| | - Duncan L. Browne
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
| | - Rebecca L. Melen
- School of Chemistry
- Cardiff University
- Main Building
- Park Place
- Cardiff
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38
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Tamiaki H, Wada A, Kishi M. Synthesis of zinc 20-ethenylated bacteriochlorophyll-d analogs and their self-aggregation in an aqueous micelle solution. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.10.027] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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39
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Manandhar P, Vokatá T, Lee S, Lee Y, Jung HM, Shim S, Moon JH. Controlled ionic complexation of positively charged phenylene‐based conjugated polymers by modulated backbone structures. POLYM INT 2018. [DOI: 10.1002/pi.5686] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Prakash Manandhar
- Department of Chemistry and Biochemistry Florida International University Miami FL USA
| | - Tereza Vokatá
- Department of Chemistry and Biochemistry Florida International University Miami FL USA
| | - Sunyoung Lee
- Department of Applied Chemistry Kumoh National Institute of Technology Gumi South Korea
| | - Yejin Lee
- Department of Chemistry Sunchon National University Suncheon South Korea
| | - Hyun Min Jung
- Department of Applied Chemistry Kumoh National Institute of Technology Gumi South Korea
| | - Sangdeok Shim
- Department of Chemistry Sunchon National University Suncheon South Korea
| | - Joong Ho Moon
- Department of Chemistry and Biochemistry Florida International University Miami FL USA
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40
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Kumar S, Kumar Pandey A, Singh R, Nand Singh K. Decarboxylative Arylation of α,β-Unsaturated Carboxylic Acids Using Aryl Triazenes by Copper/Ionic Liquid Combination in PEG-400. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800930] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Saurabh Kumar
- Department of Chemistry (Centre of Advanced Study); Institute of Science; Banaras Hindu University; 221005 Varanasi India
| | - Anand Kumar Pandey
- Department of Chemistry (Centre of Advanced Study); Institute of Science; Banaras Hindu University; 221005 Varanasi India
| | - Rahul Singh
- Department of Chemistry (Centre of Advanced Study); Institute of Science; Banaras Hindu University; 221005 Varanasi India
| | - Krishna Nand Singh
- Department of Chemistry (Centre of Advanced Study); Institute of Science; Banaras Hindu University; 221005 Varanasi India
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41
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Sayyad N, Cele Z, Aleti RR, Bera M, Cherukupalli S, Chandrasekaran B, Kushwaha ND, Karpoormath R. Copper-Catalyzed Self-Condensation of Benzamide: Domino Reactions towards Quinazolinones. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800660] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Nisar Sayyad
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
| | - Zamani Cele
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
| | - Rajeshwar Reddy Aleti
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
| | - Milan Bera
- Department of Chemistry; College of Health Sciences; Indian Institute of Technology Bombay Powai; 400 076 Mumbai India
| | - Srinivasulu Cherukupalli
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
| | - Balakumar Chandrasekaran
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
| | - Narva Deshwar Kushwaha
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
| | - Rajshekhar Karpoormath
- Department of Pharmaceutical Chemistry; College of Health Sciences; University of KwaZulu-Natal (Westville Campus); Private Bag X54001 4000 Durban South Africa
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42
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Zhang L, Hu W, Wu Y, Wei P, Dong L, Hao Z, Fan S, Song Y, Lu Y, Liang C, Wen L. Microwave-Assisted Facile Synthesis of Eu(OH) 3 Nanoclusters with Pro-Proliferative Activity Mediated by miR-199a-3p. ACS APPLIED MATERIALS & INTERFACES 2018; 10:31044-31053. [PMID: 30148600 DOI: 10.1021/acsami.8b10543] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
As a pharmaceutical excipient, dextran serves as an efficient ligand for stabilizing some clinically available inorganic nanomaterials such as iron oxide nanocrystals. Herein, dextran-capped nanosized europium(III) hydroxides [Eu(OH)3] nanoclusters (NCs) composed of 5 nm Eu(OH)3 nanoparticles have been large-scale synthesized via a microwave-accelerated hydrothermal reaction. The as-synthesized Eu(OH)3 NCs exhibited excellent physiological stability and biocompatibility both in vitro and in vivo and possessed considerable pro-proliferative activities in human umbilical vein endothelial cells (HUVECs). To investigate the epigenetic modulation of Eu(OH)3 NCs-elicited proliferation, the newly developed high-throughput next generation sequencing technology was employed herein. As a result, we have screened 371 dysregulated miRNAs in Eu(OH)3 NCs-treated HUVECs and obtained 26 potentially functional miRNAs in promoting cell proliferation. Furthermore, upregulated miR-199a-3p was predicted, validated, and eventually confirmed to be a crucial modulator in the pro-proliferative activity of Eu(OH)3 NCs by targeting zinc fingers and homeoboxes protein 1 (ZHX1). Importantly, these findings provide potential therapeutic strategy for ischemic heart/limb diseases and tissue regeneration by combination of nanomedicine and gene therapy with Eu(OH)3 NCs and miR-199a-3p-ZHX1 axis modulation.
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Affiliation(s)
- Li Zhang
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Wanglai Hu
- Department of Immunology , Anhui Medical University , Hefei , Anhui 230032 , People's Republic of China
| | - Yadong Wu
- School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Pengfei Wei
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
| | - Liang Dong
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
| | - Zongyao Hao
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Song Fan
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Yonghong Song
- School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Yang Lu
- School of Chemistry and Chemical Engineering , Hefei University of Technology , Hefei , Anhui 230009 , People's Republic of China
| | - Chaozhao Liang
- Department of Urology, the First Affiliated Hospital of Anhui Medical University and Institute of Urology , Anhui Medical University , Hefei , Anhui 230022 , People's Republic of China
| | - Longping Wen
- Hefei National Laboratory for Physical Sciences at Microscale, The CAS Key Laboratory of Innate Immunity and Chronic Disease, Innovation Center for Cell Signaling Network, School of Life Sciences and Medical Center , University of Science and Technology of China , Hefei , Anhui 230027 , People's Republic of China
- School of Medicine , South China University of Technology , Guangzhou 510006 , People's Republic of China
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43
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Thirupathi P, Venkatagiri N, Reddy CK. Amberlyst-15 as a Green and Efficient Reusable Catalyst for Friedel-Crafts Alkylation of Activated Arenes with N
-Sulfonyl Aldimines and Synthesis of Bis-triarylmethanes. ChemistrySelect 2018. [DOI: 10.1002/slct.201801664] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ponnaboina Thirupathi
- Department of Chemistry; Loyola Academy Degree & PG College, Alwal; Secunerabad-500010, Telangana India
| | - Noole Venkatagiri
- Department of Chemistry; Osmania University; Hyderabad-500007, Telangana India
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44
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Luise N, Wyatt PG. Generation of Polar Semi-Saturated Bicyclic Pyrazoles for Fragment-Based Drug-Discovery Campaigns. Chemistry 2018; 24:10443-10451. [PMID: 29732638 DOI: 10.1002/chem.201801313] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Revised: 04/27/2018] [Indexed: 12/13/2022]
Abstract
Synthesising polar semi-saturated bicyclic heterocycles can lead to better starting points for fragment-based drug discovery (FBDD) programs. We report the application of diverse chemistry to construct bicyclic systems from a common intermediate, where pyrazole, a privileged heteroaromatic able to bind effectively to biological targets, is fused to diverse saturated counterparts. The generated fragments can be further developed either after confirmation of their binding pose or early in the process, as their synthetic intermediates. Essential quality control (QC) for selection of small molecules to add to a fragment library is discussed.
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Affiliation(s)
- Nicola Luise
- Drug Discovery Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland, UK
| | - Paul G Wyatt
- Drug Discovery Unit, School of Life Sciences, University of Dundee, Dow Street, Dundee, DD1 5EH, Scotland, UK
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45
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Wagh KV, Gajengi AL, Rath D, Parida K, Bhanage BM. Sulphated Al-MCM-41: A simple, efficient and recyclable catalyst for synthesis of substituted aryl ketones/olefins via alcohols addition to alkynes and coupling with styrenes. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.03.023] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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46
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Xue F, Song X, Lin TT, Munkerup K, Albawardi SF, Huang KW, Hor TSA, Zhao J. Dimerization of Terminal Aryl Alkynes Catalyzed by Iron(II) Amine-Pyrazolyl Tripodal Complexes with E/ Z Selectivity Controlled by tert-Butoxide. ACS OMEGA 2018; 3:5071-5077. [PMID: 31458721 PMCID: PMC6641691 DOI: 10.1021/acsomega.8b00539] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Accepted: 04/30/2018] [Indexed: 06/10/2023]
Abstract
The catalytic activity of iron(II) complexes with functionalized amine-pyrazolyl tripodal ligands toward dimerization of terminal alkynes in the presence a base (KO t Bu or NaO t Bu) has been studied. An unusual E/Z selectivity of the reaction determined by tert-butoxide was observed.
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Affiliation(s)
- Fei Xue
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Xiaolu Song
- Institute
of Materials Research and Engineering, Agency
for Science Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore
| | - Ting Ting Lin
- Institute
of Materials Research and Engineering, Agency
for Science Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore
| | - Kristin Munkerup
- KAUST
Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Saad Fahad Albawardi
- KAUST
Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Kuo-Wei Huang
- KAUST
Catalysis Center and Division of Physical Science and Engineering, King Abdullah University of Science and Technology
(KAUST), Thuwal 23955-6900, Saudi Arabia
| | - T. S. Andy Hor
- Department
of Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Jin Zhao
- Institute
of Materials Research and Engineering, Agency
for Science Technology and Research (A*STAR), 2 Fusionopolis Way, Innovis, Singapore 138634, Singapore
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47
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Ionic liquids, microwave irradiation, and the synthesis of aryl Weinreb amides. MONATSHEFTE FUR CHEMIE 2018. [DOI: 10.1007/s00706-017-2089-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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48
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The Beneficial Sinergy of MW Irradiation and Ionic Liquids in Catalysis of Organic Reactions. Catalysts 2017. [DOI: 10.3390/catal7090261] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
The quest for sustainable processes is becoming more and more important, with catalysis playing a major role in improving atom economy and reducing waste. Organic syntheses with less need of protecting/de-protecting steps are highly desirable. The combination of microwave irradiation, as energy source, with ionic liquids, as both solvents and catalysts, offered interesting solutions in recent years. The literature data of the last 15 years concerning selected reactions are presented, highlighting the importance of microwave (MW) technology coupled with ionic liquids.
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49
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Zhang S, Cai J, Yamamoto Y, Bao M. Palladium-Catalyzed sp2–sp3 Coupling of Chloromethylarenes with Allyltrimethoxysilane: Synthesis of Allyl Arenes. J Org Chem 2017; 82:5974-5980. [DOI: 10.1021/acs.joc.7b00678] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sheng Zhang
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Jinfang Cai
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
| | - Yoshinori Yamamoto
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
- WPI-AIMR
(WPI-Advanced Institute for Materials Research), Tohoku University, Sendai 980-8577, Japan
| | - Ming Bao
- State
Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116023, China
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50
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Shi KJ, Shu CH, Wang CX, Wu XY, Tian H, Liu PN. On-Surface Heck Reaction of Aryl Bromides with Alkene on Au(111) with Palladium as Catalyst. Org Lett 2017; 19:2801-2804. [DOI: 10.1021/acs.orglett.7b00855] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ke-Ji Shi
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Chen-Hui Shu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Cheng-Xin Wang
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Xin-Yan Wu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - He Tian
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
| | - Pei-Nian Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials, State Key Laboratory of Chemical Engineering and School of Chemistry & Molecular Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, China
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