1
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Liu Y, Huang J, Sun Z, Deng Y, Qian Y, Huang Q, Cao S. Two-step synthesis of vicinal trifluoromethyl primary amines from α-(trifluoromethyl)styrenes and phthalimide. Org Biomol Chem 2024; 22:4641-4646. [PMID: 38775720 DOI: 10.1039/d4ob00567h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
A novel two-step synthesis of β-trifluoromethyl primary amines from readily available α-(trifluoromethyl)styrenes and phthalimide is developed. The first step involves a hydroamination between α-(trifluoromethyl)styrenes and phthalimide (PhthNH) with the assistance of a base. Next, the hydrazinolysis of the resulting N-(β-trifluoromethyl-β-arylethyl)phthalimides with hydrazine hydrate affords the desired N-(β-trifluoromethyl-β-arylethyl)amines.
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Affiliation(s)
- Ying Liu
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
| | - Jiaqi Huang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
| | - Zhudi Sun
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
| | - Yupian Deng
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
| | - Yuhao Qian
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
| | - Qingchun Huang
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
| | - Song Cao
- Shanghai Key Laboratory of Chemical Biology, School of Pharmacy, East China University of Science and Technology (ECUST), Shanghai 200237, China.
- Key Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai, 200032, China
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2
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Urbiña-Alvarez J, Rincón-Carvajal S, Gamba-Sánchez D. Ammonia surrogates in the synthesis of primary amines. Org Biomol Chem 2023; 21:7036-7051. [PMID: 37575051 DOI: 10.1039/d3ob01202f] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Primary amines are derivatives of ammonia in which one hydrogen atom is replaced by an alkyl or aryl group. Ammonia serves as the primary nitrogen source in amination reactions, and its utilization in solution or as a pure gas has witnessed notable advancements. However, the use of gaseous ammonia remains problematic in academic laboratory settings, while employing aqueous ammonia poses challenges in highly water-sensitive transformations. Consequently, the search for alternative sources of ammonia has garnered considerable attention among the organic chemistry community. This comprehensive literature review focuses on the use of ammonia surrogates in amination reactions, irrespective of the resulting intermediate. The review emphasizes the formation of the C-N bond and underscores the importance of generating intermediate products that can be readily transformed into primary amines through well-established reactions.
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Affiliation(s)
- Julia Urbiña-Alvarez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Sergio Rincón-Carvajal
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
| | - Diego Gamba-Sánchez
- Laboratory of Organic Synthesis, Bio and Organocatalysis, Chemistry Department, Universidad de Los Andes, Cra 1 No. 18A-12 Q:305, Bogotá 111711, Colombia.
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3
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Kumar R, Khanna Y, Kaushik P, Kamal R, Khokhar S. Recent Advancements on Metal-Free Vicinal Diamination of Alkenes: Synthetic Strategies and Mechanistic Insights. Chem Asian J 2023; 18:e202300017. [PMID: 36869415 DOI: 10.1002/asia.202300017] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 02/25/2023] [Accepted: 03/03/2023] [Indexed: 03/05/2023]
Abstract
The oxidative aminative vicinal difunctionalization of alkenes or related chemical feedstocks has emerged as sustainable and multipurpose strategies that can efficiently construct two -N bonds, and simultaneously prepare the synthetically fascinating molecules and catalysis in organic synthesis that typically required multi-step reactions. This review summarized the impressive breakthroughs on synthetic methodologies (2015-2022) documented especially over inter/intra-molecular vicinal diamination of alkenes with electron-rich or deficient diverse nitrogen sources. These unprecedented strategies predominantly involved iodine-based reagents/catalysts, which resent the interest of organic chemists due to their impressive role as flexible, non-toxic, and environmentally friendly reagents, resulting in a wide variety of synthetically useful organic molecules. Moreover, the information collected also describes the significant role of catalyst, terminal oxidant, substrate scope, synthetic applications, and their unsuccessful results to highlight the limitations. Special emphasis has been given to proposed mechanistic pathways to determine the key factors governing the issues of regioselectivity, enantioselectivity, and diastereoselectivity ratios.
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Affiliation(s)
- Ravinder Kumar
- Department of Chemistry, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207, Haryana (INDIA
| | - Yugam Khanna
- Department of Chemistry, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207, Haryana (INDIA
| | - Parul Kaushik
- Department of Chemistry, MMEC, Maharishi Markandeshwar (Deemed to be University), Mullana, Ambala, 133207, Haryana (INDIA
| | - Raj Kamal
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, INDIA
| | - Shiwani Khokhar
- Department of Chemistry, Kurukshetra University, Kurukshetra, 136119, Haryana, INDIA
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4
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Katagiri K, Kuriyama M, Yamamoto K, Demizu Y, Onomura O. Organocatalytic Synthesis of Phenols from Diaryliodonium Salts with Water under Metal-Free Conditions. Org Lett 2022; 24:5149-5154. [PMID: 35822911 DOI: 10.1021/acs.orglett.2c01989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The metal-free synthesis of phenols from diaryliodonium salts with water was developed by using N-benzylpyridin-2-one as an organocatalyst. In this process, sterically congested, functionalized, and heterocycle-containing iodonium salts were smoothly converted to the desired products, and the clofibrate and mecloqualone derivatives were also synthesized in high yields. In addition, the gram-scale experiment was successfully carried out with 10 mmol of a sterically congested substrate.
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Affiliation(s)
- Kotone Katagiri
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Kosuke Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
| | - Yosuke Demizu
- Division of Organic Chemistry, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki, Kanagawa 210-9501, Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University, 1-14 Bunkyo-machi, Nagasaki 852-8521, Japan
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5
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Cheng F, Duan DS, Jiang LM, Li BS, Wang JX, Zhou YJ, Jiao HY, Wu T, Zhu DY, Wang SH. Copper-Catalyzed Asymmetric Ring-Opening Reaction of Cyclic Diaryliodonium Salts with Imides. Org Lett 2022; 24:1394-1399. [PMID: 35132855 DOI: 10.1021/acs.orglett.2c00247] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
An efficient copper-catalyzed asymmetric ring-opening reaction of diaryliodonium salts with imides has been developed, affording a wide range of axially chiral 2-imidobiaryl compounds with excellent enantioselectivities and better convertibility. The potential utility of the current method has been supported by the synthesis of two known chiral ligands with better efficiency, which would be of great significance to the development of other catalytic asymmetric reactions.
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Affiliation(s)
- Fu Cheng
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Dong-Sen Duan
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Li-Ming Jiang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Bao-Sheng Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing 400044, China
| | - Jia-Xuan Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Yu-Jia Zhou
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - He-Yu Jiao
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Tao Wu
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Dao-Yong Zhu
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
| | - Shao-Hua Wang
- School of Pharmacy & State Key Laboratory of Applied Organic Chemistry & Collaborative Innovation Center for Northwestern Chinese Medicine, Lanzhou University, Room 609, Xinglin Building, 222 Tianshui South Road, Chengguan District, Lanzhou 730000, China
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6
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Liu F, Yu J, Zhang YX, Li F, Liu Q, Zhou Y, Huang S, Fang H, Xiao Z, Liao L, Xu J, Wu XY, Wu F. High-throughput tandem-microwell assay for ammonia repositions FDA-Approved drugs to inhibit Helicobacter pylori urease. FASEB J 2021; 35:e21967. [PMID: 34613630 DOI: 10.1096/fj.202100465rr] [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: 03/23/2021] [Revised: 09/15/2021] [Accepted: 09/17/2021] [Indexed: 11/11/2022]
Abstract
To date, little attempt has been made to develop new treatments for Helicobacter pylori (H. pylori), although the community is aware of the shortage of treatments for H. pylori. In this study, we developed a 192-tandem-microwell-based high-throughput assay for ammonia that is a known virulence factor of H. pylori and a product of urease. We could identify few drugs, that is, panobinostat, dacinostat, ebselen, captan, and disulfiram, to potently inhibit the activity of ureases from bacterial or plant species. These inhibitors suppress the activity of urease via substrate-competitive or covalent-allosteric mechanism, but all except captan prevent the antibiotic-resistant H. pylori strain from killing human gastric cells, with a more pronounced effect than acetohydroxamic acid, a well-known urease inhibitor and clinically used drug for the treatment of bacterial infection. This study offers several bases for the development of new treatments for urease-containing pathogens and to study the mechanism responsible for the regulation of urease activity.
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Affiliation(s)
- Fan Liu
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China.,State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, Sheng Yushou Center of Cell Biology and Immunology, School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Jing Yu
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, Sheng Yushou Center of Cell Biology and Immunology, School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Yan-Xia Zhang
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Fangzheng Li
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China.,State Key Laboratory of Natural Medicines, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, China
| | - Qi Liu
- Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Hunan, China
| | - Yueyang Zhou
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
| | - Shengshuo Huang
- State Key Laboratory of Microbial Metabolism, Joint International Research Laboratory of Metabolic & Developmental Sciences, Sheng Yushou Center of Cell Biology and Immunology, School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China
| | - Houqin Fang
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Zhuping Xiao
- Hunan Engineering Laboratory for Analyse and Drugs Development of Ethnomedicine in Wuling Mountains, Jishou University, Hunan, China
| | - Lujian Liao
- Shanghai Key Laboratory of Regulatory Biology, School of Life Sciences, East China Normal University, Shanghai, China
| | - Jinyi Xu
- State Key Laboratory of Natural Medicines, Department of Medicinal Chemistry, China Pharmaceutical University, Nanjing, China
| | - Xin-Yan Wu
- School of Chemistry & Molecular Engineering, East China University of Science and Technology, Shanghai, China
| | - Fang Wu
- Key Laboratory of Systems Biomedicine (Ministry of Education), Shanghai Center for Systems Biomedicine, Shanghai Jiao Tong University, Shanghai, China
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7
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Shibata K, Takao KI, Ogura A. Diaryliodonium Salt-Based Synthesis of N-Alkoxyindolines and Further Insights into the Ishikawa Indole Synthesis. J Org Chem 2021; 86:10067-10087. [PMID: 34197104 DOI: 10.1021/acs.joc.1c00820] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A diaryliodonium salt-based strategy enabled the first systematic synthesis of rarely accessible N-alkoxyindolines. Mechanistic analyses suggested that the reaction likely involves reductive elimination of iodobenzene from iodaoxazepine via a four-membered transition state, followed by Meisenheimer rearrangement. Substrates with N-carbamate protection afforded indole in a manner similar to that of the Ishikawa indole synthesis. Preinstallation of a stannyl group as an iodonium salt precursor greatly expanded the substrate scope, and further mechanistic insights are discussed.
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Affiliation(s)
- Kouhei Shibata
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Ken-Ichi Takao
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
| | - Akihiro Ogura
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan
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8
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Komiyama K, Kobayashi S, Shoji T, Kikushima K, Dohi T, Kita Y. Practical synthesis of diaryliodonium(iii) triflates using ArI(OAc)2/TfOH/MeCN reaction system. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-3035-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Kuriyama M, Hanazawa N, Abe Y, Katagiri K, Ono S, Yamamoto K, Onomura O. N- and O-arylation of pyridin-2-ones with diaryliodonium salts: base-dependent orthogonal selectivity under metal-free conditions. Chem Sci 2020; 11:8295-8300. [PMID: 34123094 PMCID: PMC8163315 DOI: 10.1039/d0sc02516j] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Metal-free N- and O-arylation reactions of pyridin-2-ones as ambident nucleophiles have been achieved with diaryliodonium salts on the basis of base-dependent chemoselectivity. In the presence of N,N-diethylaniline in fluorobenzene, pyridin-2-ones were very selectively converted to N-arylated products in high yields. On the other hand, the O-arylation reactions smoothly proceeded with the use of quinoline in chlorobenzene, leading to high yields and selectivities. In these methods, a variety of pyridin-2-ones in addition to pyridin-4-one and a set of diaryliodonium salts were accepted as suitable reaction partners.
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Affiliation(s)
- Masami Kuriyama
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Natsumi Hanazawa
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Yusuke Abe
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Kotone Katagiri
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Shimpei Ono
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Kosuke Yamamoto
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
| | - Osamu Onomura
- Graduate School of Biomedical Sciences, Nagasaki University 1-14 Bunkyo-machi Nagasaki 852-8521 Japan
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10
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Ansari AJ, Yadav A, Mukherjee A, Sathish E, Nagesh K, Singh R. Metal free amination of congested and functionalized alkyl bromides at room temperature. Chem Commun (Camb) 2020; 56:4804-4807. [PMID: 32227034 DOI: 10.1039/d0cc00826e] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report a highly facile and unprecedented approach to synthesize congested N-(hetero)aryl amines en route to α-amino acid amides using α-bromoamides as alkylating agents under mild reaction conditions (room temperature). The involvement of aza-oxyallyl cations as alkylating agents is the hallmark of this reaction. The method was readily adapted for the rapid synthesis of coveted 1,4-benzodiazepine-3,5-diones.
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Affiliation(s)
- Arshad J Ansari
- School of Chemical Sciences and Pharmacy, Central University of Rajasthan, Ajmer, Rajasthan 305817, India.
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11
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Mayer RJ, Ofial AR, Mayr H, Legault CY. Lewis Acidity Scale of Diaryliodonium Ions toward Oxygen, Nitrogen, and Halogen Lewis Bases. J Am Chem Soc 2020; 142:5221-5233. [PMID: 32125154 DOI: 10.1021/jacs.9b12998] [Citation(s) in RCA: 49] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Equilibrium constants for the associations of 17 diaryliodonium salts Ar2I+X- with 11 different Lewis bases (halide ions, carboxylates, p-nitrophenolate, amines, and tris(p-anisyl)phosphine) have been investigated by titrations followed by photometric or conductometric methods as well as by isothermal titration calorimetry (ITC) in acetonitrile at 20 °C. The resulting set of equilibrium constants KI covers 6 orders of magnitude and can be expressed by the linear free-energy relationship lg KI = sI LAI + LBI, which characterizes iodonium ions by the Lewis acidity parameter LAI, as well as the iodonium-specific affinities of Lewis bases by the Lewis basicity parameter LBI and the susceptibility sI. Least squares minimization with the definition LAI = 0 for Ph2I+ and sI = 1.00 for the benzoate ion provides Lewis acidities LAI for 17 iodonium ions and Lewis basicities LBI and sI for 10 Lewis bases. The lack of a general correlation between the Lewis basicities LBI (with respect to Ar2I+) and LB (with respect to Ar2CH+) indicates that different factors control the thermodynamics of Lewis adduct formation for iodonium ions and carbenium ions. Analysis of temperature-dependent equilibrium measurements as well as ITC experiments reveal a large entropic contribution to the observed Gibbs reaction energies for the Lewis adduct formations from iodonium ions and Lewis bases originating from solvation effects. The kinetics of the benzoate transfer from the bis(4-dimethylamino)-substituted benzhydryl benzoate Ar2CH-OBz to the phenyl(perfluorophenyl)iodonium ion was found to follow a first-order rate law. The first-order rate constant kobs was not affected by the concentration of Ph(C6F5)I+ indicating that the benzoate release from Ar2CH-OBz proceeds via an unassisted SN1-type mechanism followed by interception of the released benzoate ions by Ph(C6F5)I+ ions.
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Affiliation(s)
- Robert J Mayer
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Armin R Ofial
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Herbert Mayr
- Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstrasse 5-13, 81377 München, Germany
| | - Claude Y Legault
- University of Sherbrooke, Department of Chemistry, Centre in Green Chemistry and Catalysis, 2500 boul. de l'Université, Sherbrooke, Québec J1K 2R1, Canada
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12
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Koseki D, Aoto E, Shoji T, Watanabe K, In Y, Kita Y, Dohi T. Efficient N-arylation of azole compounds utilizing selective aryl-transfer TMP-iodonium(III) reagents. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.04.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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13
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Bugaenko DI, Yurovskaya MA, Karchava AV. N-Arylation of DABCO with Diaryliodonium Salts: General Synthesis of N-Aryl-DABCO Salts as Precursors for 1,4-Disubstituted Piperazines. Org Lett 2018; 20:6389-6393. [PMID: 30265556 DOI: 10.1021/acs.orglett.8b02676] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Employing DABCO as a substrate, aryl(mesityl)iodonium triflates are introduced as arylating agents for a tertiary sp3-nitrogen. Mild conditions and exceptional selectivity of the aryl group transfer allow unprecedented N-aryl-DABCO salts to be obtained, bearing substituents of different electronic natures. This metal-free methodology has no analogy among known transition-metal-based reactions. The utility of isolated N-aryl-DABCO salts is demonstrated for the preparation of flibanserin.
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Affiliation(s)
- Dmitry I Bugaenko
- Department of Chemistry , Moscow State University , Moscow 119234 , Russia
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14
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Lucchetti N, Scalone M, Fantasia S, Muñiz K. Sterically Congested 2,6-Disubstituted Anilines from Direct C-N Bond Formation at an Iodine(III) Center. Angew Chem Int Ed Engl 2018; 55:13335-13339. [PMID: 27651117 PMCID: PMC5113687 DOI: 10.1002/anie.201606599] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Indexed: 12/12/2022]
Abstract
2,6‐Disubstituted anilines are readily prepared from the direct reaction between amides and diaryliodonium salts. As demonstrated for 24 different examples, the reaction is of unusually broad scope with respect to the sterically congested arene and the nitrogen source, occurs without the requirement for any additional promoter, and proceeds through a direct reductive elimination at the iodine(III) center. The efficiency of the coupling procedure is further demonstrated within the short synthesis of a chemerin binding inhibitor.
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Affiliation(s)
- Nicola Lucchetti
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Michelangelo Scalone
- F. Hoffmann-La Roche Ltd, Process Research & Development, Grenzacherstrasse 124, 4070, Basel, Switzerland
| | - Serena Fantasia
- F. Hoffmann-La Roche Ltd, Process Research & Development, Grenzacherstrasse 124, 4070, Basel, Switzerland
| | - Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain. .,ICREA, Pg. Lluís Companys 23, 08010, Barcelona, Spain.
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15
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Purkait N, Kervefors G, Linde E, Olofsson B. Regiospecific N-Arylation of Aliphatic Amines under Mild and Metal-Free Reaction Conditions. Angew Chem Int Ed Engl 2018; 57:11427-11431. [PMID: 29956877 PMCID: PMC6120470 DOI: 10.1002/anie.201807001] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2018] [Indexed: 01/25/2023]
Abstract
A transition metal‐free N‐arylation of primary and secondary amines with diaryliodonium salts is presented. Both acyclic and cyclic amines are well tolerated, providing a large set of N‐alkyl anilines. The methodology is unprecedented among metal‐free methods in terms of amine scope, the ability to transfer both electron‐withdrawing and electron‐donating aryl groups, and efficient use of resources, as excess substrate or reagents are not required.
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Affiliation(s)
- Nibadita Purkait
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Gabriella Kervefors
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Erika Linde
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, 10691, Stockholm, Sweden
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16
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Purkait N, Kervefors G, Linde E, Olofsson B. Regiospecific N-Arylation of Aliphatic Amines under Mild and Metal-Free Reaction Conditions. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201807001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Nibadita Purkait
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
| | - Gabriella Kervefors
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
| | - Erika Linde
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
| | - Berit Olofsson
- Department of Organic Chemistry; Arrhenius Laboratory; Stockholm University 10691 Stockholm Sweden
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17
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Kervefors G, Becker A, Dey C, Olofsson B. Metal-free formal synthesis of phenoxazine. Beilstein J Org Chem 2018; 14:1491-1497. [PMID: 30013676 PMCID: PMC6036965 DOI: 10.3762/bjoc.14.126] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2018] [Accepted: 06/06/2018] [Indexed: 12/16/2022] Open
Abstract
A transition metal-free formal synthesis of phenoxazine is presented. The key step of the sequence is a high-yielding O-arylation of a phenol with an unsymmetrical diaryliodonium salt to provide an ortho-disubstituted diaryl ether. This species was cyclized to acetylphenoxazine in moderate yield. The overall yield in the three-step sequence is 72% based on recovered diaryl ether. An interesting, unusually stable iodine(III) intermediate in the O-arylation was observed by NMR and could be converted to the product upon longer reaction time.
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Affiliation(s)
- Gabriella Kervefors
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
| | - Antonia Becker
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
| | - Chandan Dey
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
| | - Berit Olofsson
- Department of Organic Chemistry, Arrhenius Laboratory, Stockholm University, SE-106-91 Stockholm, Sweden
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18
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Xu B, Han J, Wang L. Metal- and Base-Free Direct N-Arylation of Pyridazinones by Using Diaryliodonium Salts: An Anion Effect. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800268] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Bowen Xu
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
| | - Jianwei Han
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
- Shanghai-Hong Kong Joint Laboratory in Chemical Synthesis; Shanghai Institute of Organic Chemistry, The Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 P. R. China
| | - Limin Wang
- Key Laboratory for Advanced Materials, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering; East China University of Science and Technology; 130 Meilong Road Shanghai 200237 P. R. China
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19
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Abstract
The quest for the development of new protocols that provide general conditions for oxidative carbon-nitrogen bond formation has grown over recent years. Within this context, due to feasibility and benignity considerations in biochemical sciences, reactions that rely on main group oxidants as the only promoters have received particular interest. We have recently found that simple protonolysis events enable the incorporation of nitrogenated groups of the bissulfonimide family into the coordination sphere of common iodine(III) complexes such as diacetoxy iodobenzene. The products of the type ArI(OAc)(NTs2) represent rare examples of iodine(III) compounds displaying reactive iodine-nitrogen single bonds. Further protonolysis furnishes the corresponding iodine(III) compounds ArI(NTs2)2 containing two defined iodine-nitrogen single bonds for unprecedented dual transfer of both nitrogenated groups. It is of great synthetic importance that these new compounds contain iodine-nitrogen entities, which upon dissociation in solution lead to electrophilic iodine centers and nucleophilic nitrogen groups. This has enabled the development of a body of conceptually new amination reactions, which do not rely on conventional electrophilic nitrogen reagents but rather employ iodine(III) as an electrophilic activator and bissulfonimides as the source of subsequent nucleophilic amination. Additional diversification arises from the ambident nature of bissulfonimines enabling oxygenation pathways. The exciting chemistry covered in this Account comprises structural features of the reagents (including X-ray analysis), scope and limitation in synthetic amination of different hydrocarbons (including sp-, sp2-, and sp3-hybridized centers as in acetylenes, alkenes, enols, butadienes, allenes, arenes, and alkylketones), and physical-organic and theoretical analysis of the underlying reaction mechanisms. The oxidative transformations with all their rich diversifications originate from the versatile redox chemistry of the iodine(III) and iodine(I) pair, which shares several aspects of transition metal high oxidation state chemistry. For the present aryliodine(III) reagents, steric and electronic fine-tuning is possible through accurate engineering of the arene substituent. In addition to the general reactivity of the I-N bond, chiral aryliodine(III) reagents with defined stereochemical information in the aryl backbone are conceptually compatible with this approach. Thus, the development of enantioselective amination reactions with up to 99% ee was also successful. Several of the active enantioselective reagents have been isolated and structurally characterized. Following this approach for the important class of chiral vicinal diamines, an unprecedented direct diamination of alkenes could be conducted in an enantioselective catalytic manner under full intermolecular reaction control. This latter reaction is based on the precise engineering of a chiral aryliodine(III) catalyst in combination with bismesylimide as nitrogen source. It is the consequence of the precise understanding of the reaction behavior of structurally defined bisimidoiodine(III) reagents.
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Affiliation(s)
- Kilian Muñiz
- Institute for Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science & Technology, Av. Països Catalans 16, 43007 Tarragona, Spain
- ICREA, Passeig Lluís Companys 23, 08010 Barcelona, Spain
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20
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Basu S, Sandtorv AH, Stuart DR. Imide arylation with aryl(TMP)iodonium tosylates. Beilstein J Org Chem 2018; 14:1034-1038. [PMID: 29977376 PMCID: PMC6009222 DOI: 10.3762/bjoc.14.90] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2018] [Accepted: 04/27/2018] [Indexed: 02/01/2023] Open
Abstract
Herein, we describe the synthesis of N-aryl phthalimides by metal-free coupling of potassium phthalimide with unsymmetrical aryl(TMP)iodonium tosylate salts. The aryl transfer from the iodonium moiety occurs under electronic control with the electron-rich trimethoxyphenyl group acting as a competent dummy ligand. The yields of N-aryl phthalimides are moderate to high and the coupling reaction is compatible with electron-deficient and sterically encumbered aryl groups.
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Affiliation(s)
- Souradeep Basu
- Department of Chemistry, Portland State University, Portland OR 97201, United States
| | - Alexander H Sandtorv
- Department of Chemistry, Portland State University, Portland OR 97201, United States
| | - David R Stuart
- Department of Chemistry, Portland State University, Portland OR 97201, United States
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21
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Sun HB, Gong L, Tian YB, Wu JG, Zhang X, Liu J, Fu Z, Niu D. Metal- and Base-Free Room-Temperature Amination of Organoboronic Acids with N
-Alkyl Hydroxylamines. Angew Chem Int Ed Engl 2018; 57:9456-9460. [PMID: 29736974 DOI: 10.1002/anie.201802782] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2018] [Indexed: 02/05/2023]
Affiliation(s)
- Hong-Bao Sun
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Liang Gong
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Yu-Biao Tian
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jin-Gui Wu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Zhengyan Fu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
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22
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Sun HB, Gong L, Tian YB, Wu JG, Zhang X, Liu J, Fu Z, Niu D. Metal- and Base-Free Room-Temperature Amination of Organoboronic Acids with N
-Alkyl Hydroxylamines. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802782] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Hong-Bao Sun
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Liang Gong
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Yu-Biao Tian
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jin-Gui Wu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Xia Zhang
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Jie Liu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Zhengyan Fu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
| | - Dawen Niu
- State Key Laboratory of Biotherapy and Cancer Center; West China Hospital
- School of Chemical Engineering; Sichuan University; No. 17 Renmin Nan Road Chengdu 610041 China
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23
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Tota A, St John-Campbell S, Briggs EL, Estévez GO, Afonso M, Degennaro L, Luisi R, Bull JA. Highly Chemoselective NH- and O-Transfer to Thiols Using Hypervalent Iodine Reagents: Synthesis of Sulfonimidates and Sulfonamides. Org Lett 2018; 20:2599-2602. [PMID: 29652511 DOI: 10.1021/acs.orglett.8b00788] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Aryl thiols can be selectively converted to sulfonimidates or sulfonamides with three new S-X connections being made selectively in one pot. Using hypervalent iodine reagents in the presence of ammonium carbamate, NH- and O-groups are transferred under mild and practical conditions. Reducing the loading of ammonium carbamate changed the product distribution, converting the sulfonimidate to the sulfonamide. Studies into the possible intermediate species are presented, suggesting that multiple pathways may be possible via sulfinate esters, or related intermediates, with each species forming the same products.
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Affiliation(s)
- Arianna Tota
- Department of Pharmacy-Drug Sciences , University of Bari , "A. Moro" Via E, Orabona 4 , Bari 70125 , Italy
| | - Sahra St John-Campbell
- Department of Chemistry , Imperial College London , South Kensington , London SW7 2AZ , United Kingdom
| | - Edward L Briggs
- Department of Chemistry , Imperial College London , South Kensington , London SW7 2AZ , United Kingdom
| | - Gala Ogalla Estévez
- Department of Chemistry , Imperial College London , South Kensington , London SW7 2AZ , United Kingdom
| | - Michelle Afonso
- Department of Chemistry , Imperial College London , South Kensington , London SW7 2AZ , United Kingdom
| | - Leonardo Degennaro
- Department of Pharmacy-Drug Sciences , University of Bari , "A. Moro" Via E, Orabona 4 , Bari 70125 , Italy
| | - Renzo Luisi
- Department of Pharmacy-Drug Sciences , University of Bari , "A. Moro" Via E, Orabona 4 , Bari 70125 , Italy
| | - James A Bull
- Department of Chemistry , Imperial College London , South Kensington , London SW7 2AZ , United Kingdom
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24
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Bugaenko DI, Karchava AV, Yurovskaya MA. Arynes, diaryliodonium salts and azine N-oxides in transition metal-free electrophilic N-arylation. RUSSIAN CHEMICAL REVIEWS 2018. [DOI: 10.1070/rcr4781] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Das P, Takada M, Matsuzaki K, Saito N, Shibata N. SF 5-Pyridylaryl-λ 3-iodonium salts and their utility as electrophilic reagents to access SF 5-pyridine derivatives in the late-stage of synthesis. Chem Commun (Camb) 2018; 53:3850-3853. [PMID: 28317050 DOI: 10.1039/c7cc01043e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Electrophilic pentafluorosulfanyl (SF5) heteroarylation of target molecules using novel reagents is described. Unsymmetrical diaryliodonium reagents 1 having 2-SF5-pyridine have been synthesized in good yields. They are efficient electrophilic reagents for carbon and heterocentered nucleophiles, producing the corresponding SF5-pyridine derivatives in good to excellent yields.
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Affiliation(s)
- Prajwalita Das
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Masahiro Takada
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Kohei Matsuzaki
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
| | - Norimichi Saito
- Pharmaceutical Division, Ube Industries, Ltd, Seavans North Bldg., 1-2-1 Shibaura, Minato-ku, Tokyo 105-8449, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Nagoya Institute of Technology, Gokiso, Showa-ku, Nagoya 466-8555, Japan.
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26
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Mehra MK, Tantak MP, Arun V, Kumar I, Kumar D. Metal-free regioselective formation of C-N and C-O bonds with the utilization of diaryliodonium salts in water: facile synthesis of N-arylquinolones and aryloxyquinolines. Org Biomol Chem 2018; 15:4956-4961. [PMID: 28567465 DOI: 10.1039/c7ob00940b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Regioselective construction of crucial C-N and C-O bonds leading to N-arylquinolones and aryloxyquinolines has been accomplished by employing easily accessible diaryliodonium salts and quinolones in water under metal- and ligand-free conditions. This operationally simple strategy is significant due to mild reaction conditions, high product yields, recyclability of released iodoarenes and scalability to the gram level. The practical utility of the developed protocol was proved by the arylation of medicinally important heterocycles like acridin-9(10H)-one, 3-methylquinoxalin-2(1H)-one and 1H-benzo[d]imidazol-2(3H)-one.
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Affiliation(s)
- Manish Kumar Mehra
- Department of Chemistry, Birla Institute of Technology and Science, Pilani 333 031, Rajasthan, India.
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27
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Das P, Shibata N. Electrophilic Triflyl-arylation and Triflyl-pyridylation by Unsymmetrical Aryl/Pyridyl-λ 3-iodonium Salts: Synthesis of Aryl and Pyridyl Triflones. J Org Chem 2017; 82:11915-11924. [PMID: 28840726 DOI: 10.1021/acs.joc.7b01690] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Unsymmetrical diaryl-λ3-iodonium salts containing aryl triflone (Ar-SO2CF3) were designed and synthesized. X-ray crystal structure analysis of the salt indicated a T-shaped geometry at the iodine atom. The salts were found to be powerful electrophilic reagents for triflyl-arylation of C-, N-, and O-centered nucleophiles under mild conditions. Electrophilic transfer of pyridine triflone (Py-SO2CF3) to nucleophiles was also realized by the use of corresponding triflylpyridyl-aryl-λ3-iodonium salts. Selection of auxiliaries (dummy ligands) of unsymmetrical diaryl-λ3-iodonium salts is crucial for this transformation.
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Affiliation(s)
- Prajwalita Das
- Department of Nanopharmaceutical Sciences, Department of Life Science and Applied Chemistry, Nagoya Institute of Technology , Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
| | - Norio Shibata
- Department of Nanopharmaceutical Sciences, Department of Life Science and Applied Chemistry, Nagoya Institute of Technology , Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan
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28
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Aradi K, Mészáros Á, Tóth BL, Vincze Z, Novák Z. Copper-Catalyzed N-Arylation of Nitroenamines with Diaryliodonium Salts. J Org Chem 2017; 82:11752-11764. [DOI: 10.1021/acs.joc.7b01591] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Klára Aradi
- Department
of Chemistry, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary
| | - Ádám Mészáros
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a H-1117 Budapest, Hungary
| | - Balázs L. Tóth
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a H-1117 Budapest, Hungary
| | - Zoltán Vincze
- Department
of Chemistry, University of Veterinary Medicine, István utca 2, H-1078 Budapest, Hungary
| | - Zoltán Novák
- MTA-ELTE
“Lendület” Catalysis and Organic Synthesis Research
Group, Institute of Chemistry, Eötvös Loránd University, Pázmány Péter stny. 1/a H-1117 Budapest, Hungary
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29
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Stuart DR. Aryl Transfer Selectivity in Metal-Free Reactions of Unsymmetrical Diaryliodonium Salts. Chemistry 2017; 23:15852-15863. [PMID: 28793179 DOI: 10.1002/chem.201702732] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Indexed: 11/07/2022]
Abstract
Aromatic rings are found in a wide variety of products, including pharmaceuticals, agrochemicals, and functional materials. Diaryliodonium salts are new reagents used to transfer aryl groups under both metal-free and metal-catalyzed reactions and thereby synthesize arene-containing compounds. This minireview focuses on recent studies in selective aryl transfer reactions from unsymmetrical diaryliodonium salts under metal-free conditions. Reactions reported from 2007 to 2017, which represents a period of significant growth in diaryliodonium salt chemistry, are presented and organized by the type of reactive intermediate formed in the reaction. Specifically, reactions involving λ3 -iodane, λ3 -iodane radical anions, aryl radicals, and arynes are discussed. Chemoselectivity trends in aryl transfer are compared and contrasted across reaction intermediates and translation to potential auxiliaries are posited.
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Affiliation(s)
- David R Stuart
- Department of Chemistry, Portland State University, 1719 SW 10thAve, Portland, OR, 97201, USA
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30
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Sasaki T, Moriyama K, Togo H. Preparation of 3-Iodoquinolines from N-Tosyl-2-propynylamines with Diaryliodonium Triflate and N-Iodosuccinimide. J Org Chem 2017; 82:11727-11734. [PMID: 28718287 DOI: 10.1021/acs.joc.7b01433] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
4-Aryl and 4-alkyl substituted 3-iodoquinolines could be smoothly obtained in one pot by treating N-tosyl-2-propynylamines with diaryliodonium triflate in the presence of K3PO4 and a catalytic amount of CuCl at room temperature, followed by treatment with N-iodosuccinimide and BF3·OEt2 at 0 °C, and then NaOH in methanol solution. The product, 3-iodo-4-phenylquinoline was smoothly transformed into 4-phenylquinoline with zinc; 4-phenyl-3-toluenesulfenylquinoline with toluenethiol, K2CO3, and CuI; 4-phenyl-3-phenylethynylquinoline with the Sonogashira coupling reaction; 4-phenyl-3-styrylquinoline with the Heck coupling reaction; 3,4-diphenylquinoline with the Suzuki-Miyaura coupling reaction; 2-cyclohexyl-3-iodo-4-phenylquinoline with cyclohexanecarboxylic acid, Ag2CO3, and K2S2O8; and 3-iodo-2-(2',5'-dioxan-1'-yl)-4-phenylquinoline with benzoyl peroxide in dioxane.
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Affiliation(s)
- Teppei Sasaki
- Graduate School of Science and ‡Molecular Chirality Research Center, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Katsuhiko Moriyama
- Graduate School of Science and ‡Molecular Chirality Research Center, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
| | - Hideo Togo
- Graduate School of Science and ‡Molecular Chirality Research Center, Chiba University , Yayoi-cho 1-33, Inage-ku, Chiba 263-8522, Japan
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31
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Muñiz K, Barreiro L, Romero RM, Martínez C. Catalytic Asymmetric Diamination of Styrenes. J Am Chem Soc 2017; 139:4354-4357. [DOI: 10.1021/jacs.7b01443] [Citation(s) in RCA: 157] [Impact Index Per Article: 22.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Kilian Muñiz
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
| | - Laura Barreiro
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
| | - R. Martín Romero
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
| | - Claudio Martínez
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, 16 Avgda. Països Catalans, 43007 Tarragona, Spain
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32
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Ma YN, Cheng MX, Yang SD. Diastereoselective Radical Oxidative C–H Aminations toward Chiral Atropoisomeric (P, N) Ligand Precursors. Org Lett 2017; 19:600-603. [DOI: 10.1021/acs.orglett.6b03625] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yan-Na Ma
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Ming-Xing Cheng
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Shang-Dong Yang
- State
Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
- State
Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou
Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, P. R. China
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33
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Carreras V, Sandtorv AH, Stuart DR. Synthesis of Aryl(2,4,6-trimethoxyphenyl)iodonium Trifluoroacetate Salts. J Org Chem 2017; 82:1279-1284. [PMID: 28001410 DOI: 10.1021/acs.joc.6b02811] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The direct synthesis of aryl(2,4,6-trimethoxyphenyl)iodonium trifluoroacetate salts from aryl iodides is described. Stoichiometric quantities of trifluoroacetic acid and trimethoxybenzene are used as the counteranion and auxiliary precursors, respectively, under oxidizing conditions. The reaction occurs at mild temperature, is broad in scope, and does not require a separate anion exchange step to install the trifluoroacetate group. The intermediacy of two distinct dicarboxy aryl-λ3-iodanes is hypothesized in the mechanism.
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Affiliation(s)
- Virginie Carreras
- Department of Chemistry, Portland State University , Portland, Oregon 97201, United States
| | - Alexander H Sandtorv
- 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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