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Sun Q, Xu Y, Yang L, Zheng CL, Wang G, Wang HB, Fang Z, Wang CS, Guo K. Direct C-H Sulfuration: Synthesis of Disulfides, Dithiocarbamates, Xanthates, Thiocarbamates and Thiocarbonates. Chem Asian J 2024; 19:e202400124. [PMID: 38421239 DOI: 10.1002/asia.202400124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 02/28/2024] [Accepted: 02/29/2024] [Indexed: 03/02/2024]
Abstract
In light of the important biological activities and widespread applications of organic disulfides, dithiocarbamates, xanthates, thiocarbamates and thiocarbonates, the continual persuit of efficient methods for their synthesis remains crucial. Traditionally, the preparation of such compounds heavily relied on intricate multi-step syntheses and the use of highly prefunctionalized starting materials. Over the past two decades, the direct sulfuration of C-H bonds has evolved into a straightforward, atom- and step-economical method for the preparation of organosulfur compounds. This review aims to provide an up-to-date discussion on direct C-H disulfuration, dithiocarbamation, xanthylation, thiocarbamation and thiocarbonation, with a special focus on describing scopes and mechanistic aspects. Moreover, the synthetic limitations and applications of some of these methodologies, along with the key unsolved challenges to be addressed in the future are also discussed. The majority of examples covered in this review are accomplished via metal-free, photochemical or electrochemical approaches, which are in alignment with the overraching objectives of green and sustainable chemistry. This comprehensive review aims to consolidate recent advancements, providing valuable insights into the dynamic landscape of efficient and sustainable synthetic strategies for these crucial classes of organosulfur compounds.
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Affiliation(s)
- Qiao Sun
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Yuan Xu
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, Singapore, 637371, Singapore
| | - Liu Yang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Chun-Ling Zheng
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Guowei Wang
- School of Food Science and Light Industry, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Hai-Bo Wang
- School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Zheng Fang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Chang-Sheng Wang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
| | - Kai Guo
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhu Rd S., Nanjing, 211816, PR China
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2
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Wan Osman WNA, Badrol NAI, Samsuri S. Biodiesel Purification by Solvent-Aided Crystallization Using 2-Methyltetrahydrofuran. Molecules 2023; 28:molecules28031512. [PMID: 36771177 PMCID: PMC9919065 DOI: 10.3390/molecules28031512] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 01/31/2023] [Accepted: 01/31/2023] [Indexed: 02/08/2023] Open
Abstract
The previous biodiesel purification by Solvent-Aided Crystallization (SAC) using 1-butanol as assisting agent and parameters for SAC were optimized such as coolant temperature, cooling time and stirring speed. Meanwhile, 2-Methyltetrahydrofuran (2-MeTHF) was selected as an alternative to previous organic solvents for this study. In this context, it is used to replace solvent 1-butanol from a conducted previous study. This study also focuses on the technological improvements in the purification of biodiesel via SAC as well as to produce an even higher purity of biodiesel. Experimental works on the transesterification process to produce crude biodiesel were performed and SAC was carried out to purify the crude biodiesel. The crude biodiesel content was analyzed by using Gas Chromatography-Mass Spectrometry (GC-MS) and Differential Scanning Calorimetry (DSC) to measure the composition of Fatty Acid Methyl Esters (FAME) present. The optimum value to yield the highest purity of FAME for parameters coolant temperature, cooling time, and stirring speed is -4 °C, 10 min and 210 rpm, respectively. It can be concluded that the assisting solvent 2-MeTHF has a significant effect on the process parameters to produce purified biodiesel according to the standard requirement.
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Affiliation(s)
- Wan Nur Aisyah Wan Osman
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
- HICoE-Centre for Biofuel and Biochemical Research (CBBR), Institute of Sustainable Buiding, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
| | | | - Shafirah Samsuri
- Chemical Engineering Department, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
- HICoE-Centre for Biofuel and Biochemical Research (CBBR), Institute of Sustainable Buiding, Universiti Teknologi PETRONAS, Seri Iskandar 32610, Malaysia
- Correspondence:
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Gu Q, Cheng Z, Qiu X, Zeng X. Recent Advances in the Electrochemical Functionalization of Isocyanides. CHEM REC 2023; 23:e202200177. [PMID: 36126178 DOI: 10.1002/tcr.202200177] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/30/2022] [Indexed: 01/21/2023]
Abstract
Isocyanides are well-known as efficient CO surrogates and C1 synthons in modern organic synthesis. Although tremendous efforts have been devoted to fully exploiting the reactivity of isocyanides, these transformations are primarily limited by their utilization of stoichiometric toxic chemical oxidants. With the recent resurgence of organic electrochemistry, which has considerably laid dormant over the past several decades, electrolysis has been identified as a green and powerful tool to enrich structural diversity by solely utilizing electric current as clean and inherently safe redox equivalents of stoichiometric chemical oxidants. In this regard, the unique reactivity of isocyanides has been studied in numerous electrochemical transformations. This review comprehensively highlights the most relevant progress in electrochemical strategies towards the functionalization of isocyanides up until June of 2022, with a focus on reaction outcomes and mechanisms.
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Affiliation(s)
- Qingyun Gu
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| | - Zhenfeng Cheng
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| | - Xiaodong Qiu
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
| | - Xiaobao Zeng
- School of Pharmacy, Nantong University, Nantong, 226001, PR China
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Lv Y, Cui H, Meng N, Yue H, Wei W. Recent advances in the application of sulfinic acids for the construction of sulfur-containing compounds. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.06.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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5
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Deuterated N-difluoromethylthiophthalimide: A stable, scalable reagent for radical and electrophilic deuteriodifluoromethylthiolations. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Yingxian L, Wei C, Linchun Z, Ji-Quan Z, Yonglong Z, Chun L, Bing G, Lei T, Yuan-Yong Y. Catalytic N-methyl amidation of carboxylic acids under cooperative conditions. RSC Adv 2022; 12:20550-20554. [PMID: 35919177 PMCID: PMC9284536 DOI: 10.1039/d2ra03255d] [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: 05/24/2022] [Accepted: 07/09/2022] [Indexed: 11/21/2022] Open
Abstract
The generation of N-methyl amides using simple acids with high atom economy is rare owning to the volatile nature of methyl amine. Herein, an atom economic protocol was disclosed to prepare this valuable motif under DABCO/Fe3O4 cooperative catalysis.
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Affiliation(s)
- Li Yingxian
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Chen Wei
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhao Linchun
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhang Ji-Quan
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Zhao Yonglong
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Li Chun
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Guo Bing
- Guizhou Provincial Key Laboratory of Pathogenesis and Drug Research on Common Chronic Diseases, Guizhou Medical University, 550004 Guiyang, P. R. China
| | - Tang Lei
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
| | - Yang Yuan-Yong
- State Key Laboratory of Functions and Applications of Medicinal Plants, School of Pharmacy, Guizhou Provincial Engineering Technology Research Center for Chemical Drug R&D, Guizhou Medical University, 550014 Guiyang, P. R. China
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Liu X, Cai TC, Guo D, Nong Z, Yang Y, Li Q, Jiang H, Liu X, Gui QW. Electrosynthesis of S-thiocarbamates with disulfides as a sulfur source. Chem Commun (Camb) 2021; 58:657-660. [PMID: 34914819 DOI: 10.1039/d1cc05399j] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An electrochemical oxidative synthesis of S-thiocarbamates by a carbamothioation reaction via a three-component coupling reaction (disulfide, water and isocyanide) is developed, which avoids the use of external oxidants and generates only hydrogen gas as the by-product. With NH4I as the mediator and electrolyte, the desired S-thiocarbamates were obtained in good yields in an undivided cell at room temperature.
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Affiliation(s)
- Xiaoying Liu
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
| | - Tian-Cheng Cai
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
| | - Dingyi Guo
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
| | - Zhibin Nong
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
| | - Yujie Yang
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
| | - Qiang Li
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China. .,College of Agronomy, Hunan Agricultural University, Changsha 410128, People's Republic of China
| | - Hongmei Jiang
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China. .,State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, People's Republic of China
| | - Xingru Liu
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China.
| | - Qing-Wen Gui
- College of Chemistry and Materials Science, Hunan Agricultural University, Changsha, 410128, People's Republic of China. .,College of Agronomy, Hunan Agricultural University, Changsha 410128, People's Republic of China
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8
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Qin F, Wang H, Cao T, Liu Q, Xu Q, Zheng H, Zhu M, Li T, Liu Y, Wei W. Metal‐free Radical Cyclization of Olefinic 1,3‐Dicarbonyls and Olefinic Amides with Nitrile C(sp
3
)−H Bonds in Aqueous Media. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100586] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Fu‐Hua Qin
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Materials Science and Chemical Engineering Ningbo University Ningbo, Zhejiang 315211 P. R. China
| | - Hui‐Zhi Wang
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Materials Science and Chemical Engineering Ningbo University Ningbo, Zhejiang 315211 P. R. China
| | - Ting‐Ting Cao
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Materials Science and Chemical Engineering Ningbo University Ningbo, Zhejiang 315211 P. R. China
| | - Qi‐Li Liu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Materials Science and Chemical Engineering Ningbo University Ningbo, Zhejiang 315211 P. R. China
| | - Qing Xu
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Materials Science and Chemical Engineering Ningbo University Ningbo, Zhejiang 315211 P. R. China
| | - Hongxing Zheng
- Institution of Functional Organic Molecules and Materials School of Chemistry and Chemical Engineering Liaocheng University Liaocheng, Shandong 252059 P. R. China
| | - Meiling Zhu
- College of Chemistry and Pharmaceutical Engineering Nanyang Normal University Nanyang, Henan 473061 P. R. China
| | - Ting Li
- College of Chemistry and Pharmaceutical Engineering Nanyang Normal University Nanyang, Henan 473061 P. R. China
| | - Yi‐Lin Liu
- College of Chemistry and Materials Engineering Hunan Engineering Laboratory for Preparation Technology of Polyvinyl Alcohol (PVA) Fiber Material Huaihua University Huaihua, Hunan 418008 P. R. China
| | - Wen‐Ting Wei
- Key Laboratory of Advanced Mass Spectrometry and Molecular Analysis of Zhejiang Province State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-products School of Materials Science and Chemical Engineering Ningbo University Ningbo, Zhejiang 315211 P. R. China
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9
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Persulfate promoted tandem radical cyclization of ortho-cyanoarylacrylamides with oxamic acids for construction of carbamoyl quinoline-2,4-diones under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.04.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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10
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Bi WZ, Zhang WJ, Li ZJ, He YH, Feng SX, Geng Y, Chen XL, Qu LB. Visible-light-promoted synthesis of secondary and tertiary thiocarbamates from thiosulfonates and N-substituted formamides. Org Biomol Chem 2021; 19:8701-8705. [PMID: 34590107 DOI: 10.1039/d1ob01592c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A general visible-light-promoted metal-free synthesis of secondary and tertiary thiocarbamates starting from thiosulfonates and N-substituted formamides is developed. By employing rhodamine B as a photocatalyst and tert-butyl hydroperoxide (TBHP) as an oxidant, a wide scope of thiocarbamates can be obtained through direct thiolation of acyl C-H bonds under irradiation of blue light at room temperature for 12 h.
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Affiliation(s)
- Wen-Zhu Bi
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Wen-Jie Zhang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Zi-Jie Li
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Yuan-Hao He
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, 450046, China
| | - Su-Xiang Feng
- Academy of Chinese Medical Sciences, Henan University of Chinese Medicine, Zhengzhou, 450046, China. .,Collaborative Innovation Center for Chinese Medicine and Respiratory Diseases co-constructed by Henan province & Education Ministry of P. R. China, Zhengzhou, 450046, China
| | - Yang Geng
- Department of Pharmacy, Zhengzhou Railway Vocational and Technical College, Zhengzhou, 450046, China.
| | - Xiao-Lan Chen
- College of Chemistry, Zhengzhou University, Zhengzhou, 450052, China
| | - Ling-Bo Qu
- College of Chemistry, Zhengzhou University, Zhengzhou, 450052, China
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11
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Hypervalent iodine mediated C-H amination of quinoxalinones with heteroaromatic amines under metal-free conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.02.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Visible-light-initiated tandem synthesis of difluoromethylated oxindoles in 2-MeTHF under additive-, metal catalyst-, external photosensitizer-free and mild conditions. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.01.021] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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13
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Hou H, Ma X, Lin Y, Lin J, Sun W, Wang L, Xu X, Ke F. Electrochemical synthesis of quinazolinone via I 2-catalyzed tandem oxidation in aqueous solution. RSC Adv 2021; 11:17721-17726. [PMID: 35480173 PMCID: PMC9033184 DOI: 10.1039/d1ra02706a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2021] [Accepted: 05/03/2021] [Indexed: 01/08/2023] Open
Abstract
The development of protocols for synthesizing quinazolinones using biocompatible catalysts in aqueous medium will help to resolve the difficulties of using green and sustainable chemistry for their synthesis. Herein, using I2 in coordination with electrochemical synthesis induced a C-H oxidation reaction which is reported when using water as the environmentally friendly solvent to access a broad range of quinazolinones at room temperature. The reaction mechanism strongly showed that I2 cooperates electrochemically promoted the oxidation of alcohols, then effectively cyclizing amides to various quinazolinones.
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Affiliation(s)
- Huiqing Hou
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Xinhua Ma
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Yingying Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Jin Lin
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Weiming Sun
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Lei Wang
- School of Science, Xuchang University Xuchang 461000 China
| | - Xiuzhi Xu
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016
| | - Fang Ke
- School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350004 China +86-591-22862016 +86-591-22862016.,Faculty of Material and Chemical Engineering, Yibin University Yibin 644000 China
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15
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Shao Y, Ding Y, Dai J, Long Y, Hu ZT. Synthesis of 5-hydroxymethylfurfural from dehydration of biomass-derived glucose and fructose using supported metal catalysts. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.01.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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16
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Electrochemical transient iodination and coupling for selenylated 4-anilinocoumarin synthesis. GREEN SYNTHESIS AND CATALYSIS 2021. [DOI: 10.1016/j.gresc.2021.03.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
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17
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Chen JY, Zhong CT, Gui QW, Zhou YM, Fang YY, Liu KJ, Lin YW, Cao Z, He WM. Practical and sustainable approach for clean preparation of 5-organylselanyl uracils. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.09.034] [Citation(s) in RCA: 54] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Li S, Qiu J, Li B, Sun Z, Xie P, Loh TP. Practical allylation with unactivated allylic alcohols under mild conditions. Org Chem Front 2021. [DOI: 10.1039/d1qo00490e] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A practical palladium/calcium catalytic system was developed for dehydrative allylation with unactivated allylic alcohols.
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Affiliation(s)
- Shuangshuang Li
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Ju Qiu
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Bowen Li
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Zuolian Sun
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Peizhong Xie
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
| | - Teck-Peng Loh
- School of Chemistry and Molecular Engineering
- Nanjing Tech University
- Nanjing 211816
- P. R. China
- Division of Chemistry and Biological Chemistry
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19
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Meng N, Liu Q, Liu R, Lü Y, Zhao X, Wei W. Recent Advances in Arylations and Sulfonylations of Arylazo Sulfones. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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Wu H, Yu X, Cao Z. Electrochemical Multicomponent Synthesis of α-Ketoamides from α-Oxocarboxylic Acids, Isocyanides and Water. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202111010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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21
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Zhao F, Meng N, Sun T, Wen J, Zhao X, Wei W. Metal-free electrochemical synthesis of α-ketoamides via decarboxylative coupling of α-keto acids with isocyanides and water. Org Chem Front 2021. [DOI: 10.1039/d1qo01351c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A mild and convenient electrochemical protocol has been developed for the preparation of α-ketoamides via a decarboxylative coupling reaction of α-keto acids with isocyanides and water.
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Affiliation(s)
- Feng Zhao
- Key Laboratory of Functional Organic Molecule, School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Na Meng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Ting Sun
- Key Laboratory of Functional Organic Molecule, School of Chemistry and Materials Science, Guizhou Education University, Guiyang 550018, P. R. China
| | - Jiangwei Wen
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xiaohui Zhao
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, People's Republic of China
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and CAS Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Qinghai 810008, People's Republic of China
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22
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23
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24
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Gui QW, Teng F, Ying SN, Liu Y, Guo T, Tang JX, Chen JY, Cao Z, He WM. Ultrasound-assisted tandem synthesis of tri- and tetra-substituted pyrrole-2-carbonitriles from alkenes, TMSCN and N,N-disubstituted formamides. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.07.017] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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25
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Li GH, Han QQ, Sun YY, Chen DM, Wang ZL, Xu XM, Yu XY. Visible-light induced cascade radical cyclization of sulfinic acids and o-(allyloxy)arylaldehydes towards functionalized chroman-4-ones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.03.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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26
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Chen DM, Sun YY, Han QQ, Wang ZL. Hypervalent iodine mediated radical cyclization of o-(allyloxy)arylaldehydes and N-hydroxyphthalimide (NHPI) under metal-free conditions. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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27
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Zhu L, Luo N, Chen J, Zhang M, Zhao J, Miao S. Crystal structure of 3-[(triisopropylsilanyl)-ethynyl]-6 a,12 a-dihydro-1 H-1,4-diaza-benzo[α]anthracene-2,7,12-trione, C 27H 28N 2O 3Si. Z KRIST-NEW CRYST ST 2020. [DOI: 10.1515/ncrs-2020-0200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C27H28N2O3Si, triclinic, P1̄ (no. 2), a = 7.5098(4) Å, b = 7.8881(4) Å, c = 20.8904(14) Å, α = 97.002(5)°, β = 98.703(5)°, γ = 95.739(5)°, V = 1205.25(12) Å3, Z = 2, R
gt(F) = 0.0586, wR
ref(F
2) = 0.1610, T = 100(2) K.
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Affiliation(s)
- Lei Zhu
- College of Chemistry and Chemical Engineering, Hunan University , ChangSha, Hunan , 410082 China
| | - Na Luo
- College of Chemistry and Chemical Engineering, Hunan University , ChangSha, Hunan , 410082 China
| | - Jinyang Chen
- College of Chemistry and Chemical Engineering, Yangtze Normal University , Fuling, Chongqing , 408000 China
| | - Mingzhong Zhang
- College of Chemistry and Chemical Engineering, Yangtze Normal University , Fuling, Chongqing , 408000 China
| | - Jingzhe Zhao
- College of Chemistry and Chemical Engineering, Hunan University , ChangSha, Hunan , 410082 China
| | - Shaobin Miao
- Department of Chemistry and Physics, Augusta University , 1120 15th St., Augusta, GA 30912 , USA
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28
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Li Y, Wan J, Liu Y. Annulation of Ketene Dithioacetals and Sulfonyl Hydrazines for the Synthesis of
N
‐Sulfonyl 5‐Alkylthiopyrazoles. ChemistrySelect 2020. [DOI: 10.1002/slct.202002480] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Yi Li
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Jie‐Ping Wan
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
| | - Yunyun Liu
- College of Chemistry and Chemical Engineering Jiangxi Normal University Nanchang 330022 P. R. China
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29
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C(sp2)–H/O–H cross-dehydrogenative coupling of quinoxalin-2(1H)-ones with alcohols under visible-light photoredox catalysis. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(19)63526-6] [Citation(s) in RCA: 75] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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30
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Chen XJ, Gui QW, Yi R, Yu X, Wu ZL, Huang Y, Cao Z, He WM. Copper(i)-catalyzed intermolecular cyanoarylation of alkenes: convenient access to α-alkylated arylacetonitriles. Org Biomol Chem 2020; 18:5234-5237. [PMID: 32602499 DOI: 10.1039/d0ob01055c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel Cu(i)-catalyzed intermolecular cyanoarylation of alkenes with diaryliodonium salts as a radical arylating reagent and tetra-butylammonium cyanide as an electrophilic cyanating reagent was established. A broad range of α-alkylated arylacetonitriles were efficiently constructed in good to excellent yields under base- and oxidant-free and mild conditions.
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Affiliation(s)
- Xin-Jie Chen
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Qing-Wen Gui
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
| | - Rongnan Yi
- Department of Chemistry, Hunan University, Changsha 410082, China
| | - Xianyong Yu
- Key Laboratory of Theoretical Organic Chemistry and Functional Molecule of Ministry of Education, School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China.
| | - Zhi-Lin Wu
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Ying Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
| | - Wei-Min He
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha, 410114, China.
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31
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He WB, Gao LQ, Chen XJ, Wu ZL, Huang Y, Cao Z, Xu XH, He WM. Visible-light-initiated malic acid-promoted cascade coupling/cyclization of aromatic amines and KSCN to 2-aminobenzothiazoles without photocatalyst. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.02.011] [Citation(s) in RCA: 80] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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32
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Liu KJ, Deng JH, Zeng TY, Chen XJ, Huang Y, Cao Z, Lin YW, He WM. 1,2-Diethoxyethane catalyzed oxidative cleavage of gem-disubstituted aromatic alkenes to ketones under minimal solvent conditions. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.01.036] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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33
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Yang W, Li B, Zhang M, Wang S, Ji Y, Dong S, Feng J, Yuan S. Metal-free photo-induced radical C-P and C-S bond formation for the synthesis of 2-phosphoryl benzothiazoles. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.10.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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34
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Gevorgyan A, Hopmann KH, Bayer A. Exploration of New Biomass-Derived Solvents: Application to Carboxylation Reactions. CHEMSUSCHEM 2020; 13:2080-2088. [PMID: 31909560 PMCID: PMC7217053 DOI: 10.1002/cssc.201903224] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2019] [Revised: 01/05/2020] [Indexed: 05/12/2023]
Abstract
A range of hitherto unexplored biomass-derived chemicals have been evaluated as new sustainable solvents for a large variety of CO2 -based carboxylation reactions. Known biomass-derived solvents (biosolvents) are also included in the study and the results are compared with commonly used solvents for the reactions. Biosolvents can be efficiently applied in a variety of carboxylation reactions, such as Cu-catalyzed carboxylation of organoboranes and organoboronates, metal-catalyzed hydrocarboxylation, borocarboxylation, and other related reactions. For many of these reactions, the use of biosolvents provides comparable or better yields than the commonly used solvents. The best biosolvents identified are the so far unexplored candidates isosorbide dimethyl ether, acetaldehyde diethyl acetal, rose oxide, and eucalyptol, alongside the known biosolvent 2-methyltetrahydrofuran. This strategy was used for the synthesis of the commercial drugs Fenoprofen and Flurbiprofen.
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Affiliation(s)
- Ashot Gevorgyan
- Department of ChemistryUiT The Arctic University of Norway9037TromsøNorway
| | - Kathrin H. Hopmann
- Hylleraas Centre for Quantum Molecular SciencesDepartment of ChemistryUiT The Arctic University of Norway9037TromsøNorway
| | - Annette Bayer
- Department of ChemistryUiT The Arctic University of Norway9037TromsøNorway
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35
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Campestre C, Keglevich G, Kóti J, Scotti L, Gasbarri C, Angelini G. Microwave-assisted simple synthesis of 2-anilinopyrimidines by the reaction of 2-chloro-4,6-dimethylpyrimidine with aniline derivatives. RSC Adv 2020; 10:12249-12254. [PMID: 35497585 PMCID: PMC9050660 DOI: 10.1039/d0ra00833h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Accepted: 03/18/2020] [Indexed: 02/05/2023] Open
Abstract
A series of 2-anilinopyrimidines including novel derivatives has been obtained from 2-chloro-4,6-dimethylpyrimidine by aromatic nucleophilic substitution with differently substituted anilines under microwave conditions. The substituents had a significant impact on the course and efficiency of the reaction. The results reported herein demonstrate the efficacy of microwaves in the synthesis of the title heterocyclic compounds as compared to the results obtained with conventional heating. The 2-anilinopyrimidines described are of potential bioactivity. A rapid, one pot, green approach by microwave heating in ethanol provides a new method to obtain active and new potentially active compounds in high yields.![]()
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Affiliation(s)
- Cristina Campestre
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
| | - György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics 1521 Budapest Hungary
| | - János Kóti
- Spectroscopic Research Division, Gedeon Richter Plc. 1475 Budapest Hungary
| | - Luca Scotti
- Department of Medical, Oral and Biotechnological Sciences, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy
| | - Carla Gasbarri
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
| | - Guido Angelini
- Department of Pharmacy, University "G. d'Annunzio" of Chieti-Pescara via dei Vestini 66100 Chieti Italy +39-0871-3554785
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36
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Yadav MB, Balwe SG, Kim JT, Cho BG, Jeong YT. PEG-assisted one-pot three-component synthesis of 1,3-oxazino quinoline and chromeno 1,3-oxazin derivatives under catalyst free condition. SYNTHETIC COMMUN 2020. [DOI: 10.1080/00397911.2020.1737129] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Maruti B. Yadav
- Department of Image Science and Engineering, Pukyong National University, Busan, Republic of Korea
| | - Sandip Gangadhar Balwe
- Department of Image Science and Engineering, Pukyong National University, Busan, Republic of Korea
| | - Jong Tae Kim
- Department of Image Science and Engineering, Pukyong National University, Busan, Republic of Korea
| | - Byung Gwon Cho
- Department of Image Science and Engineering, Pukyong National University, Busan, Republic of Korea
| | - Yeon Tae Jeong
- Department of Image Science and Engineering, Pukyong National University, Busan, Republic of Korea
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37
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Chen JY, Wu HY, Gui QW, Han XR, Wu Y, Du K, Cao Z, Lin YW, He WM. Electrochemical Synthesis of α-Ketoamides under Catalyst-, Oxidant-, and Electrolyte-Free Conditions. Org Lett 2020; 22:2206-2209. [DOI: 10.1021/acs.orglett.0c00387] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Jin-Yang Chen
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Hong-Yu Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Qing-Wen Gui
- School of Chemistry and Chemical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China
| | - Xiao-Ran Han
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Yan Wu
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Kui Du
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408000, China
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering, University of South China, Hengyang 421001, China
| | - Wei-Min He
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, Changsha University of Science and Technology, Changsha 410114, China
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38
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Najar AH, Hossaini Z, Abdolmohammadi S, Zareyee D. ZnO-nanorods Promoted Synthesis of α-amino Nitrile Benzofuran Derivatives using One-pot Multicomponent Reaction of Isocyanides. Comb Chem High Throughput Screen 2020; 23:345-355. [PMID: 32072898 DOI: 10.2174/1386207323666200219124625] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 01/17/2020] [Accepted: 02/04/2020] [Indexed: 11/22/2022]
Abstract
AIMS AND OBJECTIVE In this work ZnO-nanorod (ZnO-NR) as reusable catalyst promoted Strecker-type reaction of 2,4-dihydroxyacetophenone, isopropenylacetylene, trimethylsilyl cyanide (TMSCN), primary amines and isocyanides at ambient temperature under solvent-free conditions and produced α-amino nitriles benzofuran derivatives in high yields. These synthesized compounds may have antioxidant ability. MATERIALS AND METHODS ZnO-NRs in these reactions were prepared according to reported article. 2,4-dihydroxyacetophenone 1 (2 mmol) and isopropenylacetylene 2 (2 mmol) were mixed and stirred for 30 min in the presence of ZnO-NR (10 mol%) under solvent-free conditions at room temperature. After 30 min, primary amine 3 (2 mmol) was added to the mixture gently and the mixture was stirred for 15 min. After this time TMSCN 4 (2 mmol) was added to the mixture and stirred for 15 min. After completion of the reaction, as indicated by TLC, isocyanides 5 was added to mixture in the presence of catalyst. RESULTS In the first step of this research, the reaction of 2,4-dihydroxyacetophenone 1, isopropenylacetylene 2, methyl amine 3a, trimethylsilyle cyanide 4 and tert-butyl isocyanides 5a was used as a sample reaction to attain the best reaction conditions. The results showed this reaction performed with catalyst and did not have any product without catalyst after 12 h. CONCLUSION In conclusion, we investigate multicomponent reaction of 2,4-dihydroxyacetophenone 1, isopropenylacetylene 2, primary amines 3, trimethylsilyl cyanide 4 and isocyanides along with ZnO-NRs as reusable catalyst at room temperature under solvent-free conditions which generates α-amino nitrile benzofuran derivatives in high yields. The advantages of our method are high atom economy, green reaction conditions, higher yield, shorter reaction times, and easy work-up, which are in good agreement with some principles of green chemistry. The compounds 8c exhibit excellent DPPH radical scavenging activity and FRAP compared to synthetic antioxidants BHT and TBHQ.
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Affiliation(s)
- Asef H Najar
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | - Zinatossadat Hossaini
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
| | | | - Daryoush Zareyee
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
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39
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Huang Q, Zhu L, Yi D, Zhao X, Wei W. Silver-mediated aminophosphinoylation of propargyl alcohols with aromatic amines and H-phosphine oxides leading to α-aminophosphine oxides. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.049] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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40
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Chen X, Zhang X, Lu S, Sun P. Electrosynthesis of polycyclic quinazolinones and rutaecarpine from isatoic anhydrides and cyclic amines. RSC Adv 2020; 10:44382-44386. [PMID: 35517151 PMCID: PMC9058480 DOI: 10.1039/d0ra09382c] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022] Open
Abstract
A direct decarboxylative cyclization between readily available isatoic anhydrides and cyclic amines was established to construct polycyclic fused quinazolinones employing electrochemical methods. This procedure was performed in an undivided cell without the use of a transition-metal-catalyst and external oxidant. A broad scope of polycyclic fused quinazolinones were obtained in moderate to good yields. Additionally, rutaecarpine was also prepared through our method in one step in good yield. Polycyclic quinazolinones and rutaecarpine were synthesized from isatoic anhydrides and cyclic amines through an electrochemical method without an external oxidant and transition-metal-catalyst.![]()
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Affiliation(s)
- Xingyu Chen
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
| | - Xing Zhang
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
| | - Sixian Lu
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
| | - Peng Sun
- Institute of Chinese Meteria Medica
- Artermisinin Research Center
- Academy of Chinese Medical Sciences
- Beijing
- P. R. China
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41
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Gui QW, Teng F, Li ZC, Jin XF, Zhang M, Dai JN, Lin YW, Cao Z, He WM. Molecular iodine-catalyzed multicomponent synthesis of α-cyanopyrrolines with ambient air as the oxidant under neat conditions. Org Chem Front 2020. [DOI: 10.1039/d0qo01113d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An eco-friendly and practical method for synthesizing α-cyanopyrrolines via iodine-catalyzed multicomponent tandem reaction of alkenes, TMSCN and N,N-disubstituted formamides with ambient air as the sole oxidant was developed.
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Affiliation(s)
- Qing-Wen Gui
- College of Chemistry and Materials Science
- Hunan Agricultural University
- Changsha 410128
- China
| | - Fan Teng
- College of Chemistry and Materials Science
- Hunan Agricultural University
- Changsha 410128
- China
| | - Zhou-Chao Li
- College of Chemistry and Materials Science
- Hunan Agricultural University
- Changsha 410128
- China
| | - Xue-Feng Jin
- College of Chemistry and Materials Science
- Hunan Agricultural University
- Changsha 410128
- China
| | - Mei Zhang
- College of Chemistry and Materials Science
- Hunan Agricultural University
- Changsha 410128
- China
| | - Jia-Ni Dai
- College of Chemistry and Materials Science
- Hunan Agricultural University
- Changsha 410128
- China
| | - Ying-Wu Lin
- School of Chemistry and Chemical Engineering
- University of South China
- Hengyang
- China
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- Changsha University of Science and Technology
- Changsha
- China
| | - Wei-Min He
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- Changsha University of Science and Technology
- Changsha
- China
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42
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Tan C, Liu Y, Liu X, Jia H, Xu K, Huang S, Wang J, Tan J. Stereoselective synthesis of trans-aziridines via intramolecular oxidative C(sp3)–H amination of β-amino ketones. Org Chem Front 2020. [DOI: 10.1039/c9qo01489f] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
An expedient strategy for the synthesis of trans-2,3-disubstituted via the intramolecular KI/TBHP mediated oxidative dehydrogenative C(sp3)–H amination reaction was presented.
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Affiliation(s)
- Chen Tan
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Yongguo Liu
- Beijing Key Laboratory of Flavor Chemistry
- Beijing Technology and Business University (BTBU)
- Beijing 100048
- China
| | - Xinyuan Liu
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Huanxin Jia
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Kun Xu
- College of Chemistry and Pharmaceutical Engineering
- Nanyang Normal University
- Nanyang
- China
| | - Sihan Huang
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jingwen Wang
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
| | - Jiajing Tan
- Department of Organic Chemistry
- College of Chemistry
- Beijing University of Chemical Technology
- Beijing 100029
- China
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43
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Adarsh Krishna TP, Pandaram S, Chinnasamy S, Ilangovan A. Oxidative radical coupling of hydroquinones and thiols using chromic acid: one-pot synthesis of quinonyl alkyl/aryl thioethers. RSC Adv 2020; 10:19454-19462. [PMID: 35515459 PMCID: PMC9054077 DOI: 10.1039/d0ra01519a] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 05/11/2020] [Indexed: 12/21/2022] Open
Abstract
An efficient, simple and practical protocol for one-pot sequential oxidative radical C–H/S–H cross-coupling of thiols with hydroquinones (HQs) and oxidation leading to the formation of quinonyl alkyl/aryl thioethers using H2CrO4 was developed. This cross-coupling of thiyl and aryl radicals offers mono thioethers in good to moderate yield and works well with a wide variety of thiols. Similarly, this method works well for coupling of 2-amino thiophenol and HQs to form phenothiazine-3-ones 5a–c. C–S bond formation via thioether synthesis was observed using a chromium reagent for the first time. Theoretical studies on the pharmacokinetic properties of compounds 5a–c revealed that due to drug-like properties, compound 5b strongly binds with Alzheimer's disease (AD) associated AChE target sites. Oxidative radical C–H/S–H cross coupling of hydroquinones and thiols and oxidation to quinone using a H2CrO4 system was developed.![]()
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Hamedani NF, Ghazvini M, Sheikholeslami-Farahani F, Jamnani MTB. KF/Clinoptilolite Nanoparticles as a Heterogeneous Catalyst for Green Synthesis of pyrido[2,1-a]isoquinolines using Four-Component Reaction of Alkyl Bromides. Comb Chem High Throughput Screen 2019; 22:728-739. [PMID: 31838992 DOI: 10.2174/1386207323666191213143417] [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: 07/30/2019] [Revised: 10/26/2019] [Accepted: 11/29/2019] [Indexed: 11/22/2022]
Abstract
OBJECTIVE KF/Clinoptilolite nanoparticles are employed as a heterogeneous catalyst for the preparation of pyrido[2,1-a]isoquinoline derivatives through a four-component reaction of isoquinoline, two different alkyl bromides and an electron deficient internal alkynes at ambient temperature in water as green solvent. METHODS In this research, (2,2-Diphenyl-1-picrylhydrazyl) radical trapping and reducing potential of ferric ion experiments was used for determining antioxidant activity of some newly synthesized compounds such as 5a, 5c, 5f and 5g and comparing results with synthetic antioxidants (TBHQ and BHT). RESULTS Compounds 5a, 5c, 5f and 5g display trace DPPH radical trapping and excellent reducing power of ferric ion. Furthermore, the power of some prepared compounds against Gram-positive and Gram-negative bacteria was proved by employing the disk dispersion experiment. CONCLUSION The obtained results of disk diffusion test showed that compounds 5a, 5d and 5e prevented the bacterial growth. The reported procedure shows the advantages of clean reaction, high yield and simple purification.
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Affiliation(s)
- Naghmeh F Hamedani
- Department of Chemistry, Faculty of Valiasr, Tehran Branch, Technical and Vocational University (TVU), Tehran, Iran
| | - Maryam Ghazvini
- Department of Chemistry, Payame Noor University, Tehran, Iran
| | | | - Mohammad T B Jamnani
- Department of Chemistry, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
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Xiong Z, Cai P, Mei Y, Wang J. Access to 1-amino-3,4-dihydroisoquinolines via palladium-catalyzed C–H bond aminoimidoylation reaction from functionalized isocyanides. RSC Adv 2019; 9:42072-42076. [PMID: 35542878 PMCID: PMC9076523 DOI: 10.1039/c9ra09139d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 12/12/2019] [Indexed: 01/24/2023] Open
Abstract
Efficient and practice access to 1-amino-3,4-dihydroisoquinolines, through palladium-catalyzed intramolecular C–H bond aminoimidoylation of α-benzyl-α-isocyanoacetates, has been developed.
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Affiliation(s)
- Zhuang Xiong
- School of Biotechnology and Sciences
- Wuyi University
- Jiangmen
- P. R. China
| | - Panyuan Cai
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
| | - Yingshuang Mei
- School of Biotechnology and Sciences
- Wuyi University
- Jiangmen
- P. R. China
| | - Jian Wang
- Key Laboratory of Functional Molecular Solids
- Ministry of Education
- Anhui Laboratory of Molecule-Based Materials
- College of Chemistry and Materials Science
- Anhui Normal University
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Xie LY, Chen YL, Qin L, Wen Y, Xie JW, Tan JX, Huang Y, Cao Z, He WM. Visible-light-promoted direct C–H/S–H cross-coupling of quinoxalin-2(1H)-ones with thiols leading to 3-sulfenylated quinoxalin-2(1H)-ones in air. Org Chem Front 2019. [DOI: 10.1039/c9qo01240k] [Citation(s) in RCA: 83] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
A new and efficient visible-light-mediated strategy has been developed for the synthesis of 3-sulfenylated quinoxalin-2(1H)-ones via rhodamine B catalyzed C–H/S–H cross-coupling of quinoxalin-2(1H)-ones with thiols in air at room temperature.
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Affiliation(s)
- Long-Yong Xie
- Department of Chemistry
- Hunan University of Science and Engineering
- Yongzhou 425100
- China
| | - Yan-Ling Chen
- Department of Chemistry
- Hunan University of Science and Engineering
- Yongzhou 425100
- China
| | - Li Qin
- Department of Chemistry
- Hunan University of Science and Engineering
- Yongzhou 425100
- China
| | - Yuan Wen
- Department of Chemistry
- Hunan University of Science and Engineering
- Yongzhou 425100
- China
| | - Jian-Wei Xie
- Department of Chemistry
- Hunan University of Science and Engineering
- Yongzhou 425100
- China
| | - Jia-Xi Tan
- School of Chemistry and Chemical Engineering
- Hunan University of Science and Technology
- Xiangtan 411201
- China
| | - Ying Huang
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- Changsha University of Science and Technology
- Changsha
- China
| | - Zhong Cao
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
- Changsha University of Science and Technology
- Changsha
- China
| | - Wei-Min He
- Department of Chemistry
- Hunan University of Science and Engineering
- Yongzhou 425100
- China
- Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation
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47
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Shen SJ, Du XL, Xu XL, Wu YH, Zhao MG, Liang JY. Combined inorganic base promoted N-addition/[2,3]-sigmatropic rearrangement to construct homoallyl sulfur-containing pyrazolones. RSC Adv 2019; 9:34912-34925. [PMID: 35542052 PMCID: PMC9082452 DOI: 10.1039/c9ra07610g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 10/22/2019] [Indexed: 12/29/2022] Open
Abstract
The first sequentially combined inorganic base promoted N-addition/[2,3]-sigmatropic rearrangement reaction of α-alkylidene pyrazolinones and propargyl sulfonium salts has been reported to construct homoallyl sulfur-containing pyrazolones with moderate to excellent yields. α-Alkylidene pyrazolinones function as N-nucleophilic agents distinguished from the reported C-addition reactions. Propargyl sulfonium salts were first involved in the [2,3]-sigmatropic rearrangement protocol differentiated from the well-established annulation reactions. The excellent regioselectivity, the broad scope of substrates, gram-scale synthesis and convenient transformation embody the synthetic superiority of this cascade process. The combined inorganic base promoted N-addition/[2,3]-sigmatropic rearrangement of α-alkylidene pyrazolinones and propargyl sulfonium salts has been reported to construct homoallyl sulfur-containing pyrazolones with moderate to excellent yields.![]()
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Affiliation(s)
- Shou-Jie Shen
- Key Laboratory of Magnetic Molecules
- Magnetic Information Materials Ministry of Education
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
| | - Xiao-Li Du
- Key Laboratory of Magnetic Molecules
- Magnetic Information Materials Ministry of Education
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
| | - Xiao-Li Xu
- College of Life Science
- Shanxi Normal University
- Linfen
- China
| | - Yue-Hua Wu
- College of Life Science
- Shanxi Normal University
- Linfen
- China
| | - Ming-gang Zhao
- Key Laboratory of Magnetic Molecules
- Magnetic Information Materials Ministry of Education
- The School of Chemical and Material Science
- Shanxi Normal University
- Linfen
| | - Jin-Yan Liang
- College of Life Science
- Shanxi Normal University
- Linfen
- China
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