1
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Liu L, Li J, Chen Y, Chen S, Xiao F, Deng GJ. Acid-Promoted Amination of Cyclohexenone for the Divergent Synthesis of p-Aminophenols and Tertiary Amines. J Org Chem 2024. [PMID: 39295166 DOI: 10.1021/acs.joc.4c00292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/21/2024]
Abstract
A tunable method for the selective preparation of p-aminophenol and tertiary amines from a secondary amine and cyclohexenone has been described. Nonaromatic cyclohexenones were used as an aryl source. The desired tertiary amine products were generated when using I2 as the catalyst. This approach yields single-site-selective p-aminophenol without using I2, and the 18O labeling experiments demonstrated that hydroxyl oxygen originates from O2.
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Affiliation(s)
- Li Liu
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jun Li
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Ya Chen
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Shanping Chen
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Fuhong Xiao
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
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2
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Mubashra S, Rafiq A, Aslam S, Rasool N, Ahmad M. Recent synthetic strategies for N-arylation of pyrrolidines: a potential template for biologically active molecules. Mol Divers 2024:10.1007/s11030-024-10924-7. [PMID: 39048884 DOI: 10.1007/s11030-024-10924-7] [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: 03/31/2024] [Accepted: 06/27/2024] [Indexed: 07/27/2024]
Abstract
The chemistry of nitrogen-containing heterocyclic compounds has been a multifaceted area of research for an extended period due to their varied therapeutic and biological significance. N-Aryl pyrrolidine formed by condensation of aryl group with nitrogen atom of pyrrolidine is present in a wide array of compounds. Various significant activities shown by N-arylated pyrrolidine include anti-Alzheimer, antihypoxic, anticancer, plant activator, analgesic effect, and hepatitis C inhibitor. This review summarizes different synthetic approaches, e.g., transition-metal catalyzed and transition-metal-free synthesis, decarboxylation reaction, reductive amination, nucleophilic cyclization, Ullmann-Goldberg amidation, Buchwald-Hartwig reaction, Chan-Evans-Lam coupling, addition to benzyne, multistep reaction, green synthesis, rearrangement reaction, and multicomponent reaction, to afford the derivatives of N-aryl pyrrolidine. It encompasses synthetic strategies documented from 2015 to 2023.
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Affiliation(s)
- Saeeda Mubashra
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Ayesha Rafiq
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Sana Aslam
- Department of Chemistry, Government College Women University Faisalabad, Faisalabad, 38000, Pakistan.
| | - Nasir Rasool
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan
| | - Matloob Ahmad
- Department of Chemistry, Government College University Faisalabad, Faisalabad, 38000, Pakistan.
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3
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Recent Advances in Synthetic Routes to Azacycles. Molecules 2023; 28:molecules28062737. [PMID: 36985708 PMCID: PMC10054516 DOI: 10.3390/molecules28062737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 03/22/2023] Open
Abstract
A heterocycle is an important structural scaffold of many organic compounds found in pharmaceuticals, materials, agrochemicals, and biological processes. Azacycles are one of the most common motifs of a heterocycle and have a variety of applications, including in pharmaceuticals. Therefore, azacycles have received significant attention from scientists and a variety of methods of synthesizing azacycles have been developed because their efficient synthesis plays a vital role in the production of many useful compounds. In this review, we summarize recent approaches to preparing azacycles via different methods as well as describe plausible reaction mechanisms.
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4
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Roberts RA, Metze BE, Nilova A, Stuart DR. Synthesis of Arynes via Formal Dehydrogenation of Arenes. J Am Chem Soc 2023; 145:3306-3311. [PMID: 36728842 DOI: 10.1021/jacs.2c13007] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Arynes offer immense potential for diversification of benzenoid rings, which occur in pharmaceuticals, agrochemicals, and liquid crystals. However, accessing these high-energy intermediates requires synthetic precursors, which involve either harsh conditions or multistep syntheses. The development of alternative methods to access arynes using simpler substrates and milder conditions is necessary for a more streamlined approach. Here, we describe a two-step formal dehydrogenation of simple arenes to generate arynes at a remote position relative to traditionally reactive groups, e.g., halides. This approach is enabled by regioselective installation and ejection of an "onium" leaving group, and we demonstrate the compatibility of simple arenes (20 examples) and arynophiles (8 examples). Moreover, through direct comparison, we show that our formal dehydrogenation method is both more functional group tolerant and efficient in generating arynes than the current state-of-the-art aryne precursors. Finally, we show that aryne intermediates offer opportunities for regioselective C-H amination that are distinct from other methods.
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Affiliation(s)
- Riley A Roberts
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Bryan E Metze
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - Aleksandra Nilova
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland, Oregon 97201, United States
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5
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Lin ZH, Yao YF, Zhang CP. Deuteration of Arylthianthren-5-ium Salts in CD 3OD. Org Lett 2022; 24:8417-8422. [DOI: 10.1021/acs.orglett.2c03541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Zeng-Hui Lin
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070, China
| | - Yu-Fei Yao
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070, China
| | - Cheng-Pan Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan, 430070, China
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6
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Xu G, Han Z, Guo L, Lu H, Gao H. Transition-Metal-Free Cascade Approach for the Synthesis of Functionalized Biaryls by S NAr of Arylhydroxylamines with Arylsulfonium Salts. J Org Chem 2022; 87:10449-10453. [PMID: 35831025 DOI: 10.1021/acs.joc.2c00990] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We report a transition-metal-free protocol for the synthesis of functionalized biaryls through nucleophilic aromatic substitution (SNAr) of arylhydroxylamines to arylsulfonium salts. With this protocol, structurally diverse functionalized biaryls were obtained smoothly in moderate to good yields. Merits of this transformation include mild reaction conditions, broad substrate scope, great functional group tolerance, feasibility of a one-pot procedure, and ease of handing and scale-up.
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Affiliation(s)
- Gaofei Xu
- School of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Ji'nan 250100, Shandong, China
| | - Zongtao Han
- Shandong Weifang Rainbow Chemical Co., Ltd., Weifang 262737, China
| | - Lirong Guo
- School of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Ji'nan 250100, Shandong, China
| | - Haifeng Lu
- School of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Ji'nan 250100, Shandong, China
| | - Hongyin Gao
- School of Chemistry and Chemical Engineering, Shandong University, 27 South Shanda Road, Ji'nan 250100, Shandong, China
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7
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McCormick TM, Stuart DR, Metze BE, Bhattacharjee A. Parameterization of Arynophiles: Experimental Investigations towards a Quantitative Understanding of Aryne Trapping Reactions. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1845-3066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractArynes are highly reactive intermediates that may be used strategically in synthesis by trapping with arynophilic reagents. However, ‘arynophilicity’ of such reagents is almost completely anecdotal and predicting which ones will be efficient traps is often challenging. Here, we describe a systematic study to parameterize the arynophilicity of a wide range of reagents known to trap arynes. A relative reactivity scale, based on one-pot competition experiments, is presented by using furan as a reference arynophile and 3-chlorobenzyne as a the aryne. More than 15 arynophiles that react in pericyclic reactions, nucleophilic addition, and σ-bond insertion reactions are parameterized with arynophilicity (A) values, and multiple aryne precursors are applicable.
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8
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Györke G, Dancsó A, Volk B, Bezúr L, Hunyadi D, Szalóki I, Milen M. Direct Use of Copper-Containing Minerals in Goldberg Arylation of Amides. Catal Letters 2022. [DOI: 10.1007/s10562-022-03989-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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9
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Zhou C, Gan QC, Zhou TP, Lei T, Ye C, He XJ, Chen B, Lu H, Wan Q, Liao RZ, Tung CH, Wu LZ. Site-Selective N-1 and C-3 Heteroarylation of Indole with Heteroarylnitriles by Organocatalysis under Visible Light. Angew Chem Int Ed Engl 2022; 61:e202116421. [PMID: 34985181 DOI: 10.1002/anie.202116421] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Indexed: 01/10/2023]
Abstract
Site-selective N-1 and C-3 arylation of indole has been sought after because of the prevalent application of arylindoles and the intricate reactivities associated with the multiple sites of the N-unsubstituted indole. Represented herein is the first regioselective heteroarylation of indole via a radical-radical cross-coupling by visible-light irradiation. Steady and time-resolved spectroscopic and computational studies revealed that the hydrogen-bonding interaction of organic base and its conjugated acid, namely with indole and heteroarylnitrile, determined the reaction pathway, which underwent either proton-coupled electron-transfer or energy-transfer for the subsequent radical-radical cross-coupling, leading to the regioselective formation of C-3 and N-1 heteroarylation of indoles, respectively. The parallel methodologies for regioisomeric N-1 and C-3 heteroaryl indoles with good functional group compatibility could be applied to large-scale synthesis and late-stage derivatization of bioactive compounds under extremely mild reaction conditions.
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Affiliation(s)
- Chao Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qi-Chao Gan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Tai-Ping Zhou
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Chen Ye
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Xiao-Jun He
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Heng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Qian Wan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rong-Zhen Liao
- School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074, China
| | - Chen-Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Li-Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,School of Future Technology, University of Chinese Academy of Sciences, Beijing, 100049, China
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10
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Zhou C, Gan Q, Zhou T, Lei T, Ye C, He X, Chen B, Lu H, Wan Q, Liao R, Tung C, Wu L. Site‐Selective
N
‐1 and C‐3 Heteroarylation of Indole with Heteroarylnitriles by Organocatalysis under Visible Light. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Chao Zhou
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Qi‐Chao Gan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Tai‐Ping Zhou
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China
| | - Tao Lei
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Chen Ye
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Xiao‐Jun He
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Bin Chen
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Heng Lu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Qian Wan
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Rong‐Zhen Liao
- School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China
| | - Chen‐Ho Tung
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
| | - Li‐Zhu Wu
- Key Laboratory of Photochemical Conversion and Optoelectronic Materials Technical Institute of Physics and Chemistry Chinese Academy of Sciences Beijing 100190 China
- School of Future Technology University of Chinese Academy of Sciences Beijing 100049 China
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11
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Wu X, Ma P, Wang J. Copper‐catalyzed direct synthesis of arylated 8‐aminoquinolines through chelation assistance. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6578] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaqian Wu
- Department of Chemistry, College of Science Tianjin University Tianjin China
| | - Peng Ma
- Department of Chemistry, College of Science Tianjin University Tianjin China
| | - Jianhui Wang
- Department of Chemistry, College of Science Tianjin University Tianjin China
- Collaborative Innovation Center of Chemical Science and Engineering Tianjin China
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12
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Martins NS, Ángel AYB, Anghinoni JM, Lenardão EJ, Barcellos T, Alberto EE. From Stoichiometric Reagents to Catalytic Partners: Selenonium Salts as Alkylating Agents for Nucleophilic Displacement Reactions in Water. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202100797] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Nayara Silva Martins
- Grupo de Síntese e Catálise Orgânica – GSCO Departamento de Química Universidade Federal de Minas Gerais – UFMG 31.270-901 Belo Horizonte, MG Brazil
| | - Alix Y. Bastidas Ángel
- Grupo de Síntese e Catálise Orgânica – GSCO Departamento de Química Universidade Federal de Minas Gerais – UFMG 31.270-901 Belo Horizonte, MG Brazil
| | - João M. Anghinoni
- Laboratório de Síntese Orgânica Limpa – LASOL CCQFA Universidade Federal de Pelotas – UFPel P.O. box 354 96010-900 Pelotas, RS Brazil
| | - Eder J. Lenardão
- Laboratório de Síntese Orgânica Limpa – LASOL CCQFA Universidade Federal de Pelotas – UFPel P.O. box 354 96010-900 Pelotas, RS Brazil
| | - Thiago Barcellos
- Laboratory of Biotechnology of Natural and Synthetic Products Universidade de Caxias do Sul 95070-560 Caxias do Sul, RS Brazil
| | - Eduardo E. Alberto
- Grupo de Síntese e Catálise Orgânica – GSCO Departamento de Química Universidade Federal de Minas Gerais – UFMG 31.270-901 Belo Horizonte, MG Brazil
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13
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Tian ZY, Zhang CP. Visible-Light-Initiated Catalyst-Free Trifluoromethylselenolation of Arylsulfonium Salts with [Me4N][SeCF3]. Org Chem Front 2022. [DOI: 10.1039/d2qo00235c] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The redox potential gap between arylsulfonium salt and [Me4N][SeCF3] has been clearly disclosed by CV measurements. Construction of carbon-selenium bond by overcoming this gap without using catalysts and additives is...
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14
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Yang XG, Wang XQ, Li SH, Long CY. Recent Progress in Amination Enabled by Transition-Metal-Free C(sp2)–O/C(sp2)–S Bond Cleavage Strategy. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/s-0040-1720382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractRecently, intense efforts have been dedicated to the development of novel synthetic strategies to access aromatic amines due to their importance in the pharmaceuticals, agrochemicals, materials, and natural product areas. Although numerous transition-metal-catalyzed C–N formation strategies have been described for the preparation of aromatic amines in the past few decades, complementary methods under transition-metal-free conditions are still required. We present the recent advances in the exploration of innovative amination approaches via C(sp2)–O/C(sp2)–S bond cleavage in this review.1 Introduction2 Stoichiometric Base-Promoted Amination3 Base-Catalyzed Amination4 Photoredox-Catalyzed Amination5 Acid-Promoted Amination6 Conclusion and Perspectives
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Affiliation(s)
- Xin-Ge Yang
- College of Chemistry and Chemical Engineering, Linyi University
| | - Xue-Qiang Wang
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University
| | - Shen-Huan Li
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University
| | - Cheng-Yu Long
- Molecular Science and Biomedicine Laboratory (MBL), State Key Laboratory of Chemo/Bio-Sensing and Chemometrics, College of Chemistry and Chemical Engineering, Aptamer Engineering Center of Hunan Province, Hunan Provincial Key Laboratory of Biomacromolecular Chemical Biology, Hunan University
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15
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Oeser P, Koudelka J, Petrenko A, Tobrman T. Recent Progress Concerning the N-Arylation of Indoles. Molecules 2021; 26:molecules26165079. [PMID: 34443667 PMCID: PMC8402097 DOI: 10.3390/molecules26165079] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2021] [Revised: 08/17/2021] [Accepted: 08/18/2021] [Indexed: 11/16/2022] Open
Abstract
This review summarizes the current state-of-the-art procedures in terms of the preparation of N-arylindoles. After a short introduction, the transition-metal-free procedures available for the N-arylation of indoles are briefly discussed. Then, the nickel-catalyzed and palladium-catalyzed N-arylation of indoles are both discussed. In the next section, copper-catalyzed procedures for the N-arylation of indoles are described. The final section focuses on recent findings in the field of biologically active N-arylindoles.
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16
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Osuský P, Nociarová J, Smolíček M, Gyepes R, Georgiou D, Polyzos I, Fakis M, Hrobárik P. Oxidative C-H Homocoupling of Push-Pull Benzothiazoles: An Atom-Economical Route to Highly Emissive Quadrupolar Arylamine-Functionalized 2,2'-Bibenzothiazoles with Enhanced Two-Photon Absorption. Org Lett 2021; 23:5512-5517. [PMID: 34233116 DOI: 10.1021/acs.orglett.1c01861] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Copper(II)-catalyzed C-H/C-H coupling of dipolar 2-H-benzothiazoles end-capped with triphenylamine moieties affords highly fluorescent 2,2'-bibenzothiazoles with quadrupolar (D-π-A-π-D) architecture displaying large two-photon absorption (TPA) cross sections (543-1252 GM) in the near-infrared region. The notably higher TPA performance as compared to quadrupolar π-systems with a widely used 2,2'-bipyridine core, along with the ease of the synthesis and chelating N^N ability, makes the title biheteroaryl platform an attractive building block for a large scope of functional dyes exploiting nonlinear optical phenomena.
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Affiliation(s)
- Patrik Osuský
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, SK-84215 Bratislava, Slovakia
| | - Jela Nociarová
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, SK-84215 Bratislava, Slovakia
| | - Maroš Smolíček
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, SK-84215 Bratislava, Slovakia
| | - Róbert Gyepes
- Faculty of Science, Charles University in Prague, Hlavova 2038/8, CZ-12843 Prague, Czech Republic
| | - Dimitris Georgiou
- Department of Physics, University of Patras, GR-26504 Patras, Greece
| | - Ioannis Polyzos
- Department of Physics, University of Patras, GR-26504 Patras, Greece
| | - Mihalis Fakis
- Department of Physics, University of Patras, GR-26504 Patras, Greece
| | - Peter Hrobárik
- Department of Inorganic Chemistry, Faculty of Natural Sciences, Comenius University, SK-84215 Bratislava, Slovakia.,Laboratory for Advanced Materials, Comenius University Science Park, Ilkovičova 8, SK-84215 Bratislava, Slovakia
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17
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Selmani A, Schoenebeck F. Transition-Metal-Free, Formal C–H Germylation of Arenes and Styrenes via Dibenzothiophenium Salts. Org Lett 2021; 23:4779-4784. [DOI: 10.1021/acs.orglett.1c01505] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Aymane Selmani
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
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18
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Tian ZY, Lin ZH, Zhang CP. Pd/Cu-Catalyzed C-H/C-H Cross Coupling of (Hetero)Arenes with Azoles through Arylsulfonium Intermediates. Org Lett 2021; 23:4400-4405. [PMID: 34010009 DOI: 10.1021/acs.orglett.1c01322] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A highly efficient method for the selective formal C-H/C-H cross-coupling of azoles and (hetero)arenes was established through arylsulfonium intermediates under transition-metal catalysis, which produced a variety of 2-(hetero)aryl azoles in good to excellent yields. Advantages of the reaction included mildness, a good functional group tolerance, a wide range of substrates, a high regio- and chemoselectivity, one-pot procedures, and the late-stage functionalization of complex molecules without the use of oxidants, offering a promising strategy for the transition-metal-catalyzed C-H arylation of azoles.
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Affiliation(s)
- Ze-Yu Tian
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.,School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Zeng-Hui Lin
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
| | - Cheng-Pan Zhang
- School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.,School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China
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19
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Mkrtchyan S, Iaroshenko VO. Arylation of ortho-Hydroxyarylenaminones by Sulfonium Salts and Arenesulfonyl Chlorides: An Access to Isoflavones. J Org Chem 2021; 86:4896-4916. [PMID: 33721488 DOI: 10.1021/acs.joc.0c02294] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein we disclose three new methods for the straightforward and efficient synthesis of 3-arylchromones following the arylation of ortho-hydroxyarylenaminones by vast diversities of bench-stable and easy-to-use sulfonium salts and arenesulfonyl chlorides. Both developed methods, namely the light-mediated photoredox and electrophilic arylation, showed good efficiency, and are feasible for the preparation of 3-arylchromones in good-to-excellent yields. This work showcases the first described attempt where the sulfonium salts and arenesulfonyl chlorides were successfully utilized for the construction of the chromone heterocycle system.
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Affiliation(s)
- Satenik Mkrtchyan
- Laboratory of Homogeneous Catalysis and Molecular Design at Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90-363 Łodź, Poland
| | - Viktor O Iaroshenko
- Laboratory of Homogeneous Catalysis and Molecular Design at Center of Molecular and Macromolecular Studies, Polish Academy of Sciences, Sienkiewicza 112, PL-90-363 Łodź, Poland.,Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, 84084, Fisciano (SA), Italy.,Department of Chemistry, University of Helsinki, A.I. Virtasen aukio 1, 00014 Helsinki, Finland
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20
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Kervefors G, Kersting L, Olofsson B. Transition Metal-Free N-Arylation of Amino Acid Esters with Diaryliodonium Salts. Chemistry 2021; 27:5790-5795. [PMID: 33481266 PMCID: PMC8048889 DOI: 10.1002/chem.202005351] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Indexed: 12/31/2022]
Abstract
A transition metal-free approach for the N-arylation of amino acid derivatives has been developed. Key to this method is the use of unsymmetric diaryliodonium salts with anisyl ligands, which proved important to obtain high chemoselectivity and yields. The scope includes the transfer of both electron deficient, electron rich and sterically hindered aryl groups with a variety of different functional groups. Furthermore, a cyclic diaryliodonium salt was successfully employed in the arylation. The N-arylated products were obtained with retained enantiomeric excess.
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Affiliation(s)
- Gabriella Kervefors
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-106 91StockholmSweden
| | - Leonard Kersting
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-106 91StockholmSweden
| | - Berit Olofsson
- Department of Organic ChemistryArrhenius LaboratoryStockholm UniversitySE-106 91StockholmSweden
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21
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Matsuzawa T, Hosoya T, Yoshida S. Transition-Metal-Free Synthesis of N-Arylphenothiazines through an N- and S-Arylation Sequence. Org Lett 2021; 23:2347-2352. [PMID: 33667111 DOI: 10.1021/acs.orglett.1c00515] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
An efficient synthetic method of N-arylphenothiazines from o-sulfanylanilines under transition-metal-free conditions is disclosed. An N- and S-arylation sequence of o-sulfanylanilines enabled us to synthesize a wide variety of N-arylphenothiazines. In particular, one-pot synthesis of N-arylphenothiazines was accomplished from easily available modules through preparation of o-sulfanylanilines by thioamination of aryne intermediates and following N- and S-arylation sequence.
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Affiliation(s)
- Tsubasa Matsuzawa
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Takamitsu Hosoya
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Suguru Yoshida
- Laboratory of Chemical Bioscience, Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University (TMDU), 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
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22
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Nucleophilic Aromatic Substitution of Polyfluoroarene to Access Highly Functionalized 10-Phenylphenothiazine Derivatives. Molecules 2021; 26:molecules26051365. [PMID: 33806360 PMCID: PMC7962002 DOI: 10.3390/molecules26051365] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Revised: 02/24/2021] [Accepted: 02/25/2021] [Indexed: 11/29/2022] Open
Abstract
Nucleophilic aromatic substitution (SNAr) reactions can provide metal-free access to synthesize monosubstituted aromatic compounds. We developed efficient SNAr conditions for p-selective substitution of polyfluoroarenes with phenothiazine in the presence of a mild base to afford the corresponding 10-phenylphenothiazine (PTH) derivatives. The resulting polyfluoroarene-bearing PTH derivatives were subjected to a second SNAr reaction to generate highly functionalized PTH derivatives with potential applicability as photocatalysts for the reduction of carbon–halogen bonds.
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23
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Solé D, Amenta A, Campos C, Fernández I. Iron-promoted dealkylative carbene aminocyclization of δ-arylamino-α-diazoesters. Dalton Trans 2021; 50:2167-2176. [PMID: 33496297 DOI: 10.1039/d0dt04373g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we report a novel methodology to access N-aryl proline derivatives using amino-tethered α-diazoesters and cheap, readily available iron salts. Mechanistically, the aminocyclization reaction involves the initial formation of an iron-carbene complex followed by a nucleophilic attack of the aniline nitrogen atom to give an ammonium ylide intermediate, which finally undergoes the iron-promoted dealkylation.
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Affiliation(s)
- Daniel Solé
- Laboratori de Química Orgànica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Arianna Amenta
- Laboratori de Química Orgànica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Cristina Campos
- Laboratori de Química Orgànica, Facultat de Farmàcia i Ciències de l'Alimentació, Universitat de Barcelona, Av. Joan XXIII 27-31, 08028 Barcelona, Spain.
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid, Spain.
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24
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Fan R, Tan C, Liu Y, Wei Y, Zhao X, Liu X, Tan J, Yoshida H. A leap forward in sulfonium salt and sulfur ylide chemistry. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.06.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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25
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Azulenesulfonium and azulenebis(sulfonium) salts: Formation by interrupted Pummerer reaction and subsequent derivatisation by nucleophiles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131700] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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26
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Afanasyev OI, Kuchuk EA, Muratov KM, Denisov GL, Chusov D. Symmetrical Tertiary Amines: Applications and Synthetic Approaches. European J Org Chem 2020. [DOI: 10.1002/ejoc.202001171] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Oleg I. Afanasyev
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 Moscow 119991 Russian Federation
| | - Ekaterina A. Kuchuk
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 Moscow 119991 Russian Federation
| | - Karim M. Muratov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 Moscow 119991 Russian Federation
| | - Gleb L. Denisov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 Moscow 119991 Russian Federation
| | - Denis Chusov
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences Vavilova St. 28 Moscow 119991 Russian Federation
- National Research University Higher School of Economics Miasnitskaya Str. 20 Moscow 101000 Russian Federation
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27
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Affiliation(s)
- Carlotta Raviola
- PhotoGreen Lab University of Pavia Viale Taramelli 10 27100 Pavia Italy
| | - Stefano Protti
- PhotoGreen Lab University of Pavia Viale Taramelli 10 27100 Pavia Italy
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28
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Niakan M, Asadi Z, Zare S. Preparation, Characterization and Application of Copper Schiff base Complex Supported on MCM‐41 as a Recyclable Catalyst for the Ullmann‐type N‐arylation Reaction. ChemistrySelect 2020. [DOI: 10.1002/slct.201903807] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Mahsa Niakan
- College of ScienceDepartment of Chemistry Shiraz University Shiraz Iran
| | - Zahra Asadi
- College of ScienceDepartment of Chemistry Shiraz University Shiraz Iran
| | - Sayeh Zare
- College of ScienceDepartment of Chemistry Shiraz University Shiraz Iran
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29
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Ghasemi AH, Naeimi H. Design, preparation and characterization of aerogel NiO–CuO–CoO/SiO2 nanocomposite as a reusable catalyst for C–N cross-coupling reaction. NEW J CHEM 2020. [DOI: 10.1039/d0nj00345j] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The aerogel nanocomposite produces using the sol–gel and supercritical drying method processes. The CO2 supercritical drying (SCD) was taken as the most powerful process, ensuring the best properties of the product.
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Affiliation(s)
- Amir Hossein Ghasemi
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Kashan
- Kashan
- Iran
| | - Hossein Naeimi
- Department of Organic Chemistry
- Faculty of Chemistry
- University of Kashan
- Kashan
- Iran
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30
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Tian ZY, Zhang CP. Ullmann-type N-arylation of anilines with alkyl(aryl)sulfonium salts. Chem Commun (Camb) 2019; 55:11936-11939. [PMID: 31531434 DOI: 10.1039/c9cc06535k] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A palladium/copper-cocatalyzed Ullmann-type N-arylation of anilines using alkyl(aryl)sulfonium triflates as arylation reagents has been accomplished. The reaction enabled Caryl-S bond cleavage over Calkyl-S bond breakage of alkyl(aryl)sulfoniums by Pd(P(tBu)3)2/CuI and gave the corresponding N-arylated products in good to high yields. It was also significant that the reactions of aniline with asymmetric butyl(mesityl)(aryl)sulfonium triflates showed excellent selectivity, in which the aryl groups other than the bulky and electron-rich mesityl moieties were transformed.
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Affiliation(s)
- Ze-Yu Tian
- School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China. and School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, China
| | - Cheng-Pan Zhang
- School of Materials Science and Engineering, Wuhan University of Technology, 122 Luoshi Road, Wuhan, 430070, China. and School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, China
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31
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Ming XX, Tian ZY, Zhang CP. Base-Mediated O-Arylation of Alcohols and Phenols by Triarylsulfonium Triflates. Chem Asian J 2019; 14:3370-3379. [PMID: 31464363 DOI: 10.1002/asia.201900968] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 07/29/2019] [Indexed: 12/15/2022]
Abstract
A mild and efficient protocol for O-arylation of alcohols and phenols (ROH) by triarylsulfonium triflates was developed under transition-metal-free conditions. Various alcohols, including primary, secondary and tertiary, and phenols bearing either electron-donating or electron-withdrawing groups on the aryl rings were smoothly converted to form the corresponding aromatic ethers in moderate to excellent yields. The reactions were conducted at 50 or 80 °C for 24 h in the presence of a certain base and showed good functional group tolerance. The base-mediated arylation with asymmetric triarylsulfonium salts could selectively transfer the aryl groups of sulfoniums to ROH, depending on their inherent electronic nature. The mechanistic studies revealed that the reaction might proceed through the nucleophilic attack of the in situ formed alkoxy or phenoxy anions at the aromatic carbon atoms of the C-S bonds of triarylsulfonium cations to furnish the target products.
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Affiliation(s)
- Xiao-Xia Ming
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, P. R. China
| | - Ze-Yu Tian
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, P. R. China
| | - Cheng-Pan Zhang
- School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, 205 Luoshi Road, Wuhan, 430070, P. R. China
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32
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Zhao JN, Kayumov M, Wang DY, Zhang A. Transition-Metal-Free Aryl-Heteroatom Bond Formation via C-S Bond Cleavage. Org Lett 2019; 21:7303-7306. [PMID: 31465236 DOI: 10.1021/acs.orglett.9b02584] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Aryl-heteroatom bonds (C-Het) are almost ubiquitously present in chemical molecules. However, methods for diverse C-Het bond formations from a simple substrate are limited. Herein, we report a convenient and efficient C-S bond transformation of aryl sulfoniums to various C-Het bonds (C-O, C-S, C-Sn, C-Si, C-Se) in the absence of any transition-metal catalyst. These reactions proceeded in mild conditions with a wide substrate scope.
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Affiliation(s)
- Jian-Nan Zhao
- CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica (SIMM) , Shanghai 201203 , China.,School of Life Science and Technology , ShanghaiTech University , Shanghai 201210 , China
| | - Muzaffar Kayumov
- CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica (SIMM) , Shanghai 201203 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Dong-Yu Wang
- CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica (SIMM) , Shanghai 201203 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China
| | - Ao Zhang
- CAS Key Laboratory of Receptor Research , Shanghai Institute of Materia Medica (SIMM) , Shanghai 201203 , China.,University of Chinese Academy of Sciences , Beijing 100049 , China.,School of Life Science and Technology , ShanghaiTech University , Shanghai 201210 , China
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33
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Dominguez-Huerta A, Perepichka I, Li CJ. Direct Synthesis of Diphenylamines from Phenols and Ammonium Formate Catalyzed by Palladium. CHEMSUSCHEM 2019; 12:2999-3002. [PMID: 31039284 DOI: 10.1002/cssc.201900928] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Revised: 04/29/2019] [Indexed: 06/09/2023]
Abstract
Arylamines are commercially and synthetically useful compounds with a wide variety of applications. Their preparation has been traditionally achieved using metal-catalyzed C-N coupling reactions with aryl halides. In this work, 17 different diarylamines are prepared from phenols by using ammonium formate as the aminating reagent. Phenolic compounds are more desirable feedstocks, owing to their availability from lignin, making them valuable biorenewable alternatives to aryl halides. Ammonium formate is found to be a convenient surrogate for ammonia and a useful aminating reagent for phenols. Diarylamine products are obtained in good to excellent yields while only water and CO2 are generated as byproducts of the transformation.
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Affiliation(s)
- Alejandra Dominguez-Huerta
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
| | - Inna Perepichka
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
| | - Chao-Jun Li
- Department of Chemistry and FQRNT Centre for Green Chemistry and Catalysis, McGill University, 801 Sherbrooke Street West, Montreal, Quebec, H3A 0B8, Canada
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