1
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Lei T, Appleson T, Breder A. Intermolecular Aza-Wacker Coupling of Alkenes with Azoles by Photo-Aerobic Selenium-π-Acid Multicatalysis. ACS Catal 2024; 14:9586-9593. [PMID: 38933469 PMCID: PMC11197018 DOI: 10.1021/acscatal.4c01327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2024] [Revised: 05/24/2024] [Accepted: 05/24/2024] [Indexed: 06/28/2024]
Abstract
Herein, the intermolecular, photoaerobic aza-Wacker coupling of azoles with alkenes by means of dual and ternary selenium-π-acid multicatalysis is presented. The title method permits an expedited avenue toward a broad scope of N-allylated azoles and representative azinones under mild conditions with broad functional group tolerance, as is showcased in more than 60 examples including late-stage drug derivatizations. From a regiochemical perspective, the protocol is complementary to cognate photoredox catalytic olefin aminations, as they typically proceed through either allylic hydrogen atom abstraction or single electron oxidation of the alkene substrate. These methods predominantly result in C-N bond formations at the allylic periphery of the alkene or the less substituted position of the former π-bond (i.e., anti-Markovnikov selectivity). The current process, however, operates through a radical-polar crossover mechanism, which solely affects the selenium catalyst, thus allowing the alkene to be converted strictly through an ionic two-electron transfer regime under Markovnikov control. In addition, it is shown that the corresponding N-vinyl azoles can also be accessed by sequential or one-pot treatment of the allylic azoles with base, thus emphasizing the exquisite utility of this method.
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Affiliation(s)
| | | | - Alexander Breder
- Institut für Organische
Chemie, Universität Regensburg, Universitätstrasse 31, 93053 Regensburg, Germany
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2
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Graf S, Pesch H, Appleson T, Lei T, Breder A, Siewert I. Mechanistic Analysis Reveals Key Role of Interchalcogen Multicatalysis in Photo-Aerobic 3-Pyrroline Syntheses by Aza-Wacker Cyclizations. CHEMSUSCHEM 2024; 17:e202301518. [PMID: 38214219 DOI: 10.1002/cssc.202301518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 01/01/2024] [Accepted: 01/10/2024] [Indexed: 01/13/2024]
Abstract
A light-driven dual and ternary catalytic aza-Wacker protocol for the construction of 3-pyrrolines by partially disulfide-assisted selenium-π-acid multicatalysis is reported. A structurally diverse array of sulfonamides possessing homopolar mono-, di- and trisubstituted olefinic double bonds is selectively converted to the corresponding 3-pyrrolines in up to 95 % isolated yield and with good functional group tolerance. Advanced electrochemical mechanistic investigations of the protocol suggest a dual role of the disulfide co-catalyst. On the one hand, the disulfide serves as an electron hole shuttle between the excited photoredox catalyst and the selenium co-catalyst. On the other hand, the sulfur species engages in the final, product releasing step of the catalytic cycle by accelerating the β-elimination of the selenium moiety, which was found in many cases to lead to considerably improved product yields.
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Affiliation(s)
- Sebastian Graf
- Universität Regensburg, Institut für Organische Chemie, Universitätstrasse 31, 93053, Regensburg, Germany
| | - Henner Pesch
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, 37077, Göttingen, Germany
| | - Theresa Appleson
- Universität Regensburg, Institut für Organische Chemie, Universitätstrasse 31, 93053, Regensburg, Germany
| | - Tao Lei
- Universität Regensburg, Institut für Organische Chemie, Universitätstrasse 31, 93053, Regensburg, Germany
| | - Alexander Breder
- Universität Regensburg, Institut für Organische Chemie, Universitätstrasse 31, 93053, Regensburg, Germany
| | - Inke Siewert
- Universität Göttingen, Institut für Anorganische Chemie, Tammannstrasse 4, 37077, Göttingen, Germany
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3
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Qiu W, Liao L, Xu X, Huang H, Xu Y, Zhao X. Catalytic 1,1-diazidation of alkenes. Nat Commun 2024; 15:3632. [PMID: 38684686 PMCID: PMC11058774 DOI: 10.1038/s41467-024-47854-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 04/11/2024] [Indexed: 05/02/2024] Open
Abstract
Compared to well-developed catalytic 1,2-diazidation of alkenes to produce vicinal diazides, the corresponding catalytic 1,1-diazidation of alkenes to yield geminal diazides has not been realized. Here we report an efficient approach for catalytic 1,1-diazidation of alkenes by redox-active selenium catalysis. Under mild conditions, electron-rich aryl alkenes with Z or E or Z/E mixed configuration can undergo migratory 1,1-diazidation to give a series of functionalized monoalkyl or dialkyl geminal diazides that are difficult to access by other methods. The method is also effective for the construction of polydiazides. The formed diazides are relatively safe by TGA-DSC analysis and impact sensitivity tests, and can be easily converted into various valuable molecules. In addition, interesting reactivity that geminal diazides give valuable molecules via the geminal diazidomethyl moiety as a formal leaving group in the presence of Lewis acid is disclosed. Mechanistic studies revealed that a selenenylation-deselenenylation followed by 1,2-aryl migration process is involved in the reactions, which provides a basis for the design of new reactions.
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Affiliation(s)
- Wangzhen Qiu
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Lihao Liao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.
| | - Xinghua Xu
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Hongtai Huang
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Yang Xu
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China
| | - Xiaodan Zhao
- Institute of Organic Chemistry and MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, IGCME, Sun Yat-Sen University, Guangzhou, 510006, P. R. China.
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4
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Yadav M, Singh VP. Glutathione Peroxidase-like Antioxidant Activity of 1,3-Benzoselenazoles: Synthesis and In Silico Molecular Docking Studies as Pancreatic Lipase Inhibitors. J Org Chem 2023; 88:16934-16948. [PMID: 38008916 DOI: 10.1021/acs.joc.3c01762] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
The synthesis of 1,3-benzoselenazoles was achieved by the reaction of corresponding bis[3-amino-N-(p-tolyl)benzamide-2-yl] diselenide, bis[3-amino-N-(4-methoxyphenyl)benzamide-2-yl] diselenide, and bis[3-amino-N-(4-(dimethylamino)phenyl) benzamide-2-yl] diselenide with aryl aldehydes. The 1,3-benzoselenazoles continued to exist as planar molecules due to the presence of secondary Se···O interactions as revealed by the single-crystal X-ray analysis. The presence of secondary Se···O interactions in 1,3-benzoselenazoles was confirmed using natural bond orbital (NBO) and atoms in molecules (AIM) calculations. Nucleus-independent chemical shift (NICS) values suggested the presence of aromatic character in a five-membered benzoselenazole heterocyclic ring. The glutathione peroxidase (GPx)-like antioxidant activity of all 1,3-benzoselenazoles was assessed using a thiophenol assay, exhibiting greater antioxidant activity than Ph2Se2 used as a reference. The most active catalyst carrying a strong electron-donating group (-NMe2) at the ortho-position to the benzoselenazole ring was further investigated at different concentrations of thiophenol, H2O2, and 1,3-benzoselenazoles as catalyst for determining their catalytic parameters. Moreover, the potential applications of all 1,3-benzoselenazoles against pancreatic lipase (PL) have been identified using in silico interactions between the active sites of the 1LPB protein as evaluated using a molecular docking study.
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Affiliation(s)
- Manisha Yadav
- Department of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh 160 014, India
| | - Vijay P Singh
- Department of Chemistry & Centre of Advanced Studies in Chemistry, Panjab University, Sector-14, Chandigarh 160 014, India
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5
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Sun R, Viaud E, Nomula R, Naubron JV, Daugey N, Buffeteau T, Castet F, Toullec PY, Quideau S, Peixoto PA. Asymmetric Allenylation of Alkynes mediated by Chiral Organoselenated Reagents under Oxidative Conditions. Angew Chem Int Ed Engl 2023; 62:e202310436. [PMID: 37599267 DOI: 10.1002/anie.202310436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 08/12/2023] [Accepted: 08/16/2023] [Indexed: 08/22/2023]
Abstract
The reactivity of novel chiral lactamide-substituted diselenide-based reagents under oxidative conditions was exploited to develop a metal-free method for the preparation of enantioenriched allenylamides from simple alkynes in good yields, and with enantiomeric excesses up to 99 %. The key of the success in this method is attributed to the hydrogen-bonded lactamide appendages that ensure configurational stability of chiral vinyl selenoxide intermediates for an optimal enantiotopic β-syn-elimination step.
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Affiliation(s)
- Rongyu Sun
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | - Emilie Viaud
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | - Rajesh Nomula
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | | | - Nicolas Daugey
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | - Thierry Buffeteau
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | - Frédéric Castet
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | - Patrick Y Toullec
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
| | - Stéphane Quideau
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
- Institut Universitaire de France, 1 rue Descartes., 75231, Paris Cedex 05, France
| | - Philippe A Peixoto
- Univ. Bordeaux, ISM (CNRS-UMR 5255), 351 cours de la Libération., 33405, Talence Cedex, France
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6
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Obenschain DC, Tabor JR, Michael FE. Metal-Free Intermolecular Allylic C–H Amination of Alkenes Using Primary Carbamates. ACS Catal 2023. [DOI: 10.1021/acscatal.3c00807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023]
Affiliation(s)
- Derek C. Obenschain
- Department of Chemistry, University of Washington, B ox 351700, Seattle, Washington 98195-1700, United States
| | - John R. Tabor
- Department of Chemistry, University of Washington, B ox 351700, Seattle, Washington 98195-1700, United States
| | - Forrest E. Michael
- Department of Chemistry, University of Washington, B ox 351700, Seattle, Washington 98195-1700, United States
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7
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Chen T, Liu W, Gu W, Niu S, Lan S, Zhao Z, Gong F, Liu J, Yang S, Cotman AE, Song J, Fang X. Dynamic Kinetic Resolution of β-Substituted α-Diketones via Asymmetric Transfer Hydrogenation. J Am Chem Soc 2023; 145:585-599. [PMID: 36563320 DOI: 10.1021/jacs.2c11149] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Developing innovative dynamic kinetic resolution (DKR) modes and achieving the highly regio- and enantioselective semihydrogenation of unsymmetrical α-diketones are two formidable challenges in the field of contemporary asymmetric (transfer) hydrogenation. In this work, we report the highly regio- and stereoselective asymmetric semi-transfer hydrogenation of unsymmetrical α-diketones through a unique DKR mode, which features the reduction of the carbonyl group distal from the labile stereocenter, while the proximal carbonyl remains untouched. Moreover, the protocol affords a variety of enantioenriched acyclic ketones with α-hydroxy-α'-C(sp2)-functional groups, which represent a new product class that has not been furnished in known arts. The utilities of the products have been demonstrated in a series of further transformations including the rapid synthesis of drug molecules. Density functional theory calculations and plenty of control experiments have also been conducted to gain more mechanistic insights into the highly selective semihydrogenation.
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Affiliation(s)
- Ting Chen
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Wenjun Liu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Wei Gu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Shengtong Niu
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Shouang Lan
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Zhifei Zhao
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Fan Gong
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Jinggong Liu
- Orthopedics Department, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Shuang Yang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
| | - Andrej Emanuel Cotman
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, Ljubljana SI-1000, Slovenia
| | - Jinshuai Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou, Henan 450001, China
| | - Xinqiang Fang
- State Key Laboratory of Structural Chemistry, and Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, Fuzhou 350100, China
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8
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Zhang JQ, Shen C, Shuai S, Fang L, Hu D, Wang J, Zhou Y, Ni B, Ren H. Electrochemical Selenium-Catalyzed N,O-Difunctionalization of Ynamides: Access to Polysubstituted Oxazoles. Org Lett 2022; 24:9419-9424. [PMID: 36541615 DOI: 10.1021/acs.orglett.2c03811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A green and efficient approach for the difunctionalization of ynamides by merging the electrochemical and organoselenium-catalyzed processes is described. This strategy features mild reaction conditions, broad functional group tolerance and high atom-economy, and requires no external chemical oxidant. Hence, we provide a sustainable alternative for the synthesis of polysubstituted oxazoles.
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Affiliation(s)
- Jun-Qi Zhang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Chunjiao Shen
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Shihao Shuai
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Ling Fang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Dandan Hu
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Jiali Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Yu Zhou
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China
| | - Bukuo Ni
- Department of Chemistry, Texas A&M University-Commerce, Commerce, Texas 75429-3011, United States
| | - Hongjun Ren
- Advanced Research Institute and Department of Chemistry, Taizhou University, Jiaojiang 318000, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453000, China
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9
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Rachor SG, Ahrens M, Braun T. Conversion of a Au I Fluorido Complex into an N-Fluoroamido Derivative: N-F versus Au-N Reactivity. Angew Chem Int Ed Engl 2022; 61:e202212858. [PMID: 36279190 PMCID: PMC10099710 DOI: 10.1002/anie.202212858] [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: 08/31/2022] [Indexed: 11/06/2022]
Abstract
The AuI complex [Au{N(F)SO2 Ph}(SPhos)] (SPhos=dicyclohexyl(2',6'-dimethoxy[1,1'-biphenyl]-2-yl)phosphane) (2) bearing a fluoroamido ligand has been synthesized by reaction of the fluorido complex [Au(F)(SPhos)] (1) with NFSI (NFSI=N-fluorobenzenesulfonimide). A reaction with CO resulted in an unprecedented insertion into the N-F bond at 2. With the carbene precursor N2 CH(CO2 Et) N-F bond cleavage gave the Au-F bond insertion product [Au{CHF(CO2 C2 H5 )}(SPhos)] (7). The presence of CNtBu led to Au-N cleavage at 2 and concomitant amide formation to give the cationic complex [Au(CNtBu)(SPhos)][N(F)SO2 Ph)] (5), which reacted further to give FtBu as well as the cyanido complex [Au(CN)(SPhos)] (6). These results led to the development of a process for the amination of electrophilic organic substrates by transfer of the fluoroamido group NF(SO2 Ph)- .
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Affiliation(s)
- Simon G Rachor
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Mike Ahrens
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
| | - Thomas Braun
- Department of Chemistry, Humboldt-Universität zu Berlin, Brook-Taylor-Straße 2, 12489, Berlin, Germany
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10
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Galetto FZ, da Silva C, Beche RIM, Balaguez RA, Franco MS, de Assis FF, Frizon TEA, Su X. Decarboxylative ring-opening of 2-oxazolidinones: a facile and modular synthesis of β-chalcogen amines. RSC Adv 2022; 12:34496-34502. [PMID: 36545628 PMCID: PMC9710311 DOI: 10.1039/d2ra06070a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/18/2022] [Indexed: 12/03/2022] Open
Abstract
We report herein the synthesis of primary and secondary β-chalcogen amines through the regioselective ring-opening reaction of non-activated 2-oxazolidinones promoted by in situ generated chalcogenolate anions. The developed one-step protocol enabled the preparation of β-selenoamines, β-telluroamines and β-thioamines with appreciable structural diversity and in yields of up to 95%.
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Affiliation(s)
- Fábio Z Galetto
- Department of Chemistry, Federal University of Santa Catarina Florianópolis SC 88040-900 Brazil +554837213649
| | - Cleiton da Silva
- Department of Chemistry, Federal University of Santa Catarina Florianópolis SC 88040-900 Brazil +554837213649
| | - Ricardo I M Beche
- Department of Chemistry, Federal University of Santa Catarina Florianópolis SC 88040-900 Brazil +554837213649
| | - Renata A Balaguez
- Department of Chemistry, Federal University of Santa Catarina Florianópolis SC 88040-900 Brazil +554837213649
| | - Marcelo S Franco
- Department of Chemistry, Federal University of Santa Catarina Florianópolis SC 88040-900 Brazil +554837213649
| | - Francisco F de Assis
- Department of Chemistry, Federal University of Santa Catarina Florianópolis SC 88040-900 Brazil +554837213649
| | - Tiago E A Frizon
- Department of Energy and Sustainability, Federal University of Santa Catarina Araranguá SC Brazil
| | - Xiao Su
- Department of Chemical and Biomolecular Engineering, University of Illinois at Urbana-Champaign Urbana IL 61801 USA
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11
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Jiang YQ, Wang YH, Zhou CF, Zhang YQ, Ling Y, Zhao Y, Liu GQ. N-Fluorobenzenesulfonimide-Mediated Intermolecular Carboselenenylation of Olefins with Aromatics and Diselenides. J Org Chem 2022; 87:14609-14622. [DOI: 10.1021/acs.joc.2c01989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- You-Qin Jiang
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
| | - Yong-Hao Wang
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
| | - Chen-Fan Zhou
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
| | - Yun-Qian Zhang
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
| | - Yong Ling
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
| | - Yu Zhao
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
| | - Gong-Qing Liu
- School of Pharmacy and Jiangsu Province Key Laboratory for Inflammation and Molecular Drug Target, Nantong University, Nantong 226019, People’s Republic of China
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12
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Liu M, Yan K, Wen J, Zhang N, Chen X, Li X, Wang X. PIFA Induced Regioselective C–H Chalcogenylation of Benzo[d]imidazo[5,1‐b]thiazoles under Mild Conditions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Min Liu
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Kelu Yan
- Qufu Normal University School of Chemistry and Chemical Engineering Jingxuan Road 57 273165 Qufu CHINA
| | - Jiangwei Wen
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Ning Zhang
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xinyu Chen
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xue Li
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
| | - Xiu Wang
- Qufu Normal University College of Chemistry and Chemical Engineering Qufu CHINA
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13
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Li B, Zhou Y, Sun Y, Xiong F, Gu L, Ma W, Mei R. Electrochemical selenium-π-acid promoted hydration of alkynyl phosphonates. Chem Commun (Camb) 2022; 58:7566-7569. [PMID: 35708585 DOI: 10.1039/d2cc01901a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An unprecedented electrochemical selenium-π-acid promoted hydration of internal alkynes bearing a phosphonate auxiliary was described. Thus, valuable (hetero)aryl and alkyl ketones could be accessed under mild, metal- and external oxidant-free conditions. This protocol features high atom-economy, good chemo- and regio-selectivity, excellent functional group tolerance and easily transformable products. Control experiments demonstrate that phosphonate assistance is essential for this transformation.
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Affiliation(s)
- Bo Li
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.,Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Yunhao Zhou
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Yanan Sun
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China
| | - Feng Xiong
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China
| | - Linghui Gu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
| | - Ruhuai Mei
- Key Laboratory of Coarse Cereal Processing (Ministry of Agriculture and Rural Affairs), School of Food and Biological Engineering, Chengdu University, Chengdu 610106, P. R. China.,Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics, School of Pharmacy, Chengdu University, Chengdu 610052, P. R. China
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14
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Yang L, Liu Y, Fan WX, Tan DH, Li Q, Wang H. Regiocontrolled allylic functionalization of internal alkene via selenium-π-acid catalysis guided by boron substitution. Chem Sci 2022; 13:6413-6417. [PMID: 35733886 PMCID: PMC9159098 DOI: 10.1039/d2sc00954d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Accepted: 04/22/2022] [Indexed: 12/11/2022] Open
Abstract
The selenium-π-acid-catalysis has received increasing attention as a powerful tool for olefin functionalization, but the regioselectivity is often problematic. Reported herein is a selenium-catalyzed regiocontrolled olefin transpositional chlorination and imidation reaction. The reaction outcome benefits from an allylic B(MIDA) substitution. And the stabilization of α-anion from a hemilabile B(MIDA) moiety was believed to be the key factor for selectivity. Broad substrate scope, good functional group tolerance and generally good yields were observed. The formed products were demonstrated to be valuable precursors for the synthesis of a wide variety of structurally complex organoborons.
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Affiliation(s)
- Ling Yang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Yuan Liu
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Wen-Xin Fan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Dong-Hang Tan
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Qingjiang Li
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University Guangzhou 510006 People's Republic of China
| | - Honggen Wang
- Guangdong Key Laboratory of Chiral Molecule and Drug Discovery, School of Pharmaceutical Sciences, Sun Yat-sen University Guangzhou 510006 People's Republic of China
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15
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Batabyal M, Upadhyay A, Kadu R, Birudukota NC, Chopra D, Kumar S. Tetravalent Spiroselenurane Catalysts: Intramolecular Se···N Chalcogen Bond-Driven Catalytic Disproportionation of H 2O 2 to H 2O and O 2 and Activation of I 2 and NBS. Inorg Chem 2022; 61:8729-8745. [PMID: 35638247 DOI: 10.1021/acs.inorgchem.2c00651] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Chalcogen-bonding interactions have recently gained considerable attention in the field of synthetic chemistry, structure, and bonding. Here, three organo-spiroselenuranes, having a Se(IV) center with a strong intramolecular Se···N chalcogen-bonded interaction, have been isolated by the oxidation of the respective bis(2-benzamide) selenides derived from an 8-aminoquinoline ligand. Further, the synthesized spiroselenuranes, when assayed for their antioxidant activity, show disproportionation of hydrogen peroxide into H2O and O2 with first-order kinetics with respect to H2O2 for the first time by any organoselenium molecules as monitored by 1H NMR spectroscopy. Electron-donating 5-methylthio-benzamide ring-substituted spiroselenurane disproportionates hydrogen peroxide at a high rate of 15.6 ± 0.4 × 103 μM min-1 with a rate constant of 8.57 ± 0.50 × 10-3 s-1, whereas 5-methoxy and unsubstituted-benzamide spiroselenuranes catalyzed the disproportionation of H2O2 at rates of 7.9 ± 0.3 × 103 and 2.9 ± 0.3 × 103 μM min-1 with rate constants of 1.16 ± 0.02 × 10-3 and 0.325 ± 0.025 × 10-3 s-1, respectively. The evolved oxygen gas from the spiroselenurane-catalyzed disproportion of H2O2 has also been confirmed by a gas chromatograph-thermal conductivity detector (GCTCD) and a portable digital polarographic dissolved O2 probe. Additionally, the synthesized spiroselenuranes exhibit thiol peroxidase antioxidant activities for the reduction of H2O2 by a benzenethiol co-reductant monitored by UV-visible spectroscopy. Next, the Se···N bonded spiroselenuranes have been explored as catalysts in synthetic oxidation iodolactonization and bromination of arenes. The synthesized spiroselenurane has activated I2 toward the iodolactonization of alkenoic acids under base-free conditions. Similarly, efficient chemo- and regioselective monobromination of various arenes with NBS catalyzed by chalcogen-bonded synthesized spiroselenuranes has been achieved. Mechanistic insight into the spiroselenuranes in oxidation reactions has been gained by 77Se NMR, mass spectrometry, UV-visible spectroscopy, single-crystal X-ray structure, and theoretical (DFT, NBO, and AIM) studies. It seems that the highly electrophilic nature of the selenium center is attributed to the presence of an intramolecular Se···N interaction and a vacant coordination site in spiroselenuranes is crucial for the activation of H2O2, I2, and NBS. The reaction of H2O2, I2, and NBS with tetravalent spiroselenurane would lead to an octahedral-Se(VI) intermediate, which is reduced back to Se(IV) due to thermodynamic instability of selenium in its highest oxidation state and the presence of a strong intramolecular N-donor atom.
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Affiliation(s)
- Monojit Batabyal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Aditya Upadhyay
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Rahul Kadu
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India.,MIT School of Engineering, MIT Art, Design and Technology University Pune, Loni Kalbhor, Maharashtra 412201, India
| | - Nihal Chaitanya Birudukota
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Deepak Chopra
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal Bypass Road, Bhauri Bhopal 462 066, Madhya Pradesh, India
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16
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Guo T, Li Z, Bi L, Fan L, Zhang P. Recent advances in organic synthesis applying elemental selenium. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132752] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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17
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Oe Y, Yoshida R, Tanaka A, Adachi A, Ishibashi Y, Okazoe T, Aikawa K, Hashimoto T. An N-Fluorinated Imide for Practical Catalytic Imidations. J Am Chem Soc 2022; 144:2107-2113. [PMID: 35084841 DOI: 10.1021/jacs.1c13569] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Catalytic imidation using NFSI as the nitrogen source has become an emerging tool for oxidative carbon-nitrogen bond formation. However, the less than ideal benzenesulfonimide moiety is incorporated into products, severely detracting its synthetic value. As a solution to this challenge, we report herein the development of a novel N-fluorinated imide, N-fluoro-N-(fluorosulfonyl)carbamate (NFC), by which the attached imide moiety acts as a modular synthetic handle for one-step derivatization to amines, sulfonamides, and sulfamides. Furthermore, this study revealed the superior reactivity of NFC as showcased in a copper-catalyzed imidation of benzene derivatives and imidocyanation of aliphatic alkenes, overcoming the limitation of NFSI-mediated reactions.
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Affiliation(s)
- Yuno Oe
- Chiba Iodine Resource Innovation Center and Department of Chemistry, Graduate School of Science, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
| | - Ryuhei Yoshida
- Chiba Iodine Resource Innovation Center and Department of Chemistry, Graduate School of Science, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
| | - Airi Tanaka
- Chiba Iodine Resource Innovation Center and Department of Chemistry, Graduate School of Science, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
| | - Akiya Adachi
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Yuichiro Ishibashi
- Yokohama Technical Center, AGC Inc., 1-1 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Takashi Okazoe
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan.,Yokohama Technical Center, AGC Inc., 1-1 Suehiro-cho, Tsurumi-ku, Yokohama 230-0045, Japan
| | - Kohsuke Aikawa
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Takuya Hashimoto
- Chiba Iodine Resource Innovation Center and Department of Chemistry, Graduate School of Science, Chiba University, 1-33, Yayoi, Inage, Chiba 263-8522, Japan
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18
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Liu MS, Du HW, Shu W. Metal-free allylic C-H nitrogenation, oxygenation, and carbonation of alkenes by thianthrenation. Chem Sci 2022; 13:1003-1008. [PMID: 35211265 PMCID: PMC8790768 DOI: 10.1039/d1sc06577g] [Citation(s) in RCA: 32] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 12/18/2021] [Indexed: 11/25/2022] Open
Abstract
Selective functionalization of allylic C–H bonds into other chemical bonds is among the most straightforward and attractive, yet challenging transformations. Herein, a transition-metal-free protocol for direct allylic C–H nitrogenation, oxygenation, and carbonation of alkenes by thianthrenation was developed. This operationally simple protocol allows for the unified allylic C–H amination, esterification, etherification, and arylation of vinyl thianthrenium salts. Notably, the reaction furnishes multialkyl substituted allylic amines, ammonium salts, sulfonyl amides, esters, and ethers in good yields. The reaction proceeds under mild conditions with excellent functional group tolerance and could be applied to late-stage allylation of natural products, drug molecules and peptides with excellent chemoselectivity. Diverse functionalizations of allylic C–H bonds of alkenes by thianthrenation have been demonstrated, featuring Z-selectivity to afford multi-alkyl substituted allylic esters, thioesters, ethers, amines, amides and arenes under metal-free conditions.![]()
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Affiliation(s)
- Ming-Shang Liu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Hai-Wu Du
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
| | - Wei Shu
- Shenzhen Grubbs Institute, Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology Shenzhen 518055 Guangdong P. R. China
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19
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Wang L, Li K, Zhang W. Organoselenium-Catalyzed Conversion of Oximes to Nitriles or Ketones. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202109036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Zhu C, Zhumagazy S, Yue H, Rueping M. Metal-free C-Se cross-coupling enabled by photoinduced inter-molecular charge transfer. Chem Commun (Camb) 2021; 58:96-99. [PMID: 34874034 DOI: 10.1039/d1cc06152f] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Metal-free C-Se cross-couplings via the formation of electron-donor-acceptor (EDA) complexes have been developed. The visible-light induced reactions can be applied for the synthesis of a series of unsymmetrical diaryl selenides employing aryl bromides, aryl iodides as well as aryl chlorides under mild reaction conditions. The scale-up was readily achieved. UV-Vis spectroscopy measurements provide insight into the reaction mechanism.
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Affiliation(s)
- Chen Zhu
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Serik Zhumagazy
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Huifeng Yue
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
| | - Magnus Rueping
- KAUST Catalysis Center, KCC, King Abdullah University of Science and Technology, KAUST, Thuwal 23955-6900, Saudi Arabia.
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21
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Wang DL, Jiang NQ, Cai ZJ, Ji SJ. A Radical Addition/Cyclization and Se-Group Transfer Strategy for the Facile Synthesis of Se-Containing Cyclopentenes under Metal-Free and Peroxide-Free Conditions. Chemistry 2021; 27:17765-17768. [PMID: 34611946 DOI: 10.1002/chem.202103334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Indexed: 01/03/2023]
Abstract
A novel intermolecular radical addition/cyclization and Se-group transfer reaction of terminal alkynes and unsaturated alkyl selenide is presented which offers a straightforward and facile approach for the synthesis of valuable Se-containing cyclopentenes. Remarkable features of this strategy include easily accessible starting materials, metal-free and peroxide-free conditions, high atom economy, simple operation and broad substrate scope. More importantly, the reaction is easy to scale up and can be extended to the construction of six-membered carbon ring.
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Affiliation(s)
- Dian-Liang Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science &, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Nan-Quan Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science &, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Zhong-Jian Cai
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science &, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, P. R. China
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science &, Collaborative Innovation Center of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu, 215123, P. R. China
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22
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Wang LW, Feng YF, Lin HM, Tang HT, Pan YM. Electrochemically Enabled Selenium Catalytic Synthesis of 2,1-Benzoxazoles from o-Nitrophenylacetylenes. J Org Chem 2021; 86:16121-16127. [PMID: 33599123 DOI: 10.1021/acs.joc.1c00012] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The study reported an electrochemically mediated method for the preparation of 2,1-benzoxazoles from o-nitrophenylacetylenes. Different from the traditional electrochemical reduction of nitro to nitroso, the nitro group directly underwent a cyclization reaction with the alkyne activated by selenium cation generated by the anodic oxidation of diphenyl diselenide and finally produced the desired products.
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Affiliation(s)
- Lin-Wei Wang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Yu-Feng Feng
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Hong-Min Lin
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Hai-Tao Tang
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
| | - Ying-Ming Pan
- State Key Laboratory for Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry and Pharmaceutical Sciences of Guangxi Normal University, Guilin 541004, People's Republic of China
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23
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Yang D, Chen J, Huang Y, Pan H, Shi J, Zhang Y, Wang F, Li Z. Room-temperature Formal Aza-Wacker Cyclization through Synergistic Copper/TEMPO-catalyzed Radical Relay. ACS Catal 2021. [DOI: 10.1021/acscatal.1c02721] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Dong Yang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jiaming Chen
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Yanping Huang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
- Engineering Experimental Teaching Centre, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Huiquan Pan
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Jingqi Shi
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Yingyue Zhang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Fang Wang
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
| | - Ziyuan Li
- Department of Pharmaceutical and Biological Engineering, School of Chemical Engineering, Sichuan University, No. 24 South Section 1, Yihuan Road, Chengdu 610065, China
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24
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Chuang H, Schupp M, Meyrelles R, Maryasin B, Maulide N. Redox-Neutral Selenium-Catalysed Isomerisation of para-Hydroxamic Acids into para-Aminophenols. Angew Chem Int Ed Engl 2021; 60:13778-13782. [PMID: 33760338 PMCID: PMC8252732 DOI: 10.1002/anie.202100801] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 01/18/2023]
Abstract
A selenium-catalysed para-hydroxylation of N-aryl-hydroxamic acids is reported. Mechanistically, the reaction comprises an N-O bond cleavage and consecutive selenium-induced [2,3]-rearrangement to deliver para-hydroxyaniline derivatives. The mechanism is studied through both 18 O-crossover experiments as well as quantum chemical calculations. This redox-neutral transformation provides an unconventional synthetic approach to para-aminophenols.
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Affiliation(s)
- Hsiang‐Yu Chuang
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
| | - Manuel Schupp
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
- CeMM—Research Center for Molecular Medicine of the Austrian Academy of SciencesLazarettgasse 14, AKH BT 25.31090ViennaAustria
| | - Ricardo Meyrelles
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
- University of ViennaInstitute of Theoretical ChemistryWähringer Straße 171090ViennaAustria
| | - Boris Maryasin
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
- University of ViennaInstitute of Theoretical ChemistryWähringer Straße 171090ViennaAustria
| | - Nuno Maulide
- University of ViennaInstitute of Organic ChemistryWähringer Strasse 381090ViennaAustria
- CeMM—Research Center for Molecular Medicine of the Austrian Academy of SciencesLazarettgasse 14, AKH BT 25.31090ViennaAustria
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25
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Chuang H, Schupp M, Meyrelles R, Maryasin B, Maulide N. Redox-Neutrale Selen-katalysierte Isomerisierung von para-Hydroxamsäuren zu para-Aminophenolen. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 133:13896-13901. [PMID: 38504972 PMCID: PMC10946912 DOI: 10.1002/ange.202100801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 01/26/2023]
Abstract
AbstractÜber eine Selen‐katalysierte para‐Hydroxylierung von N‐Arylhydroxamsäuren wird berichtet. Mechanistisch verläuft diese über N‐O‐Bindungsbruch und nachfolgende Selen‐induzierte [2,3]‐Umlagerungen um para‐Hydroxylanilinderivate zu erzeugen. Der Mechanismus wurde sowohl mittels 18O‐Überkreuzungsexperimenten als auch quantenchemischen Berechnungen untersucht. Diese redox‐neutrale Transformation ermöglicht einen ungewöhnlichen synthetischen Zugang zu para‐Aminophenolen.
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Affiliation(s)
- Hsiang‐Yu Chuang
- Universität WienInstitut für Organische ChemieWähringer Strasse 381090WienÖsterreich
| | - Manuel Schupp
- Universität WienInstitut für Organische ChemieWähringer Strasse 381090WienÖsterreich
- CeMM – Forschungszentrum für Molekulare Medizin der Österreichischen Akademie der WissenschaftenLazarettgasse 14, AKH BT 25.31090WienÖsterreich
| | - Ricardo Meyrelles
- Universität WienInstitut für Organische ChemieWähringer Strasse 381090WienÖsterreich
- Universität WienInstitut für Theoretische ChemieWähringer Straße 171090WienÖsterreich
| | - Boris Maryasin
- Universität WienInstitut für Organische ChemieWähringer Strasse 381090WienÖsterreich
- Universität WienInstitut für Theoretische ChemieWähringer Straße 171090WienÖsterreich
| | - Nuno Maulide
- Universität WienInstitut für Organische ChemieWähringer Strasse 381090WienÖsterreich
- CeMM – Forschungszentrum für Molekulare Medizin der Österreichischen Akademie der WissenschaftenLazarettgasse 14, AKH BT 25.31090WienÖsterreich
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26
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Li F, Pei C, Koenigs RM. Rhodium-catalyzed cascade reactions of triazoles with organoselenium compounds - a combined experimental and mechanistic study. Chem Sci 2021; 12:6362-6369. [PMID: 34084435 PMCID: PMC8115268 DOI: 10.1039/d1sc00495f] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Herein, we report on our studies on the reaction of organoselenium compounds with triazoles under thermal conditions using simple Rh(ii) catalysts. These reactions do not provide the product of classic rearrangement reactions. Instead two different cascade reactions were uncovered. While allyl selenides react in a cascade of sigmatropic rearrangement and selenium-mediated radical cyclization reaction to give dihydropyrroles, cinnamyl selenides undergo a double rearrangement reaction cascade involving a final aza-Cope reaction to give the product of 1,3-difunctionalization. Theoretical and experimental studies were conducted to provide an understanding of the reaction mechanism of these cascade reactions. The former provide an important insight into fundamental question on the nature of the ylide intermediate in rearrangement reactions and reveal that organoselenium compounds take up multiple roles in rearrangement reactions and mediate a free ylide reaction mechanism. Herein, we report on our studies on the reaction of organoselenium compounds with triazoles under thermal conditions using simple Rh(ii) catalysts.![]()
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Affiliation(s)
- Fang Li
- RWTH Aachen University, Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
| | - Chao Pei
- RWTH Aachen University, Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
| | - Rene M Koenigs
- RWTH Aachen University, Institute of Organic Chemistry Landoltweg 1 D-52074 Aachen Germany
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27
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Rode K, Ramadas Narasimhamurthy P, Rieger R, Krätzschmar F, Breder A. Synthesis of Aminoallenes via Selenium-π-Acid-Catalyzed Cross-Coupling of N-Fluorinated Sulfonimides with Simple Alkynes. European J Org Chem 2021; 2021:1720-1725. [PMID: 33776555 PMCID: PMC7986078 DOI: 10.1002/ejoc.202001673] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 02/15/2021] [Indexed: 02/02/2023]
Abstract
The facile synthesis of aminoallenes, accomplished by a selenium-π-acid-catalyzed cross-coupling of an N-fluorinated sulfonimide with simple, non-activated alkynes, is reported. Until now, aminoallenes were difficult to be accessed by customary means, inasmuch as pre-activated and, in part, intricate starting materials were necessary for their synthesis. In sharp contrast, the current study shows that ordinary internal alkynes can serve as simple and readily available precursors for the construction of the aminoallene motif. The operating reaction conditions tolerate numerous functional groups such as esters, nitriles, (silyl)ethers, acetals, and halogen substituents, furnishing the target compounds in up to 86 % yield.
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Affiliation(s)
- Katharina Rode
- Institut für Organische und Biomolekulare ChemieUniversität GöttingenTammannstr. 237077GöttingenGermany
| | | | - Rene Rieger
- Faculty of Chemistry and PharmacyUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Felix Krätzschmar
- Faculty of Chemistry and PharmacyUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
| | - Alexander Breder
- Faculty of Chemistry and PharmacyUniversity of RegensburgUniversitätsstraße 3193053RegensburgGermany
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28
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Ban YL, You L, Feng KW, Ma FC, Jin XL, Liu Q. Meyer-Schuster-Type Rearrangement of Propargylic Alcohols into α-Selenoenals and -enones with Diselenides. J Org Chem 2021; 86:5274-5283. [PMID: 33709711 DOI: 10.1021/acs.joc.1c00167] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
We describe a mild and broadly applicable protocol for the preparation of a diverse array of multisubstituted α-selenoenals and -enones from readily accessible propargylic alcohols and diselenides. The transformation proceeds via the Selectfluor-promoted selenirenium pathway, which enables selenenylation/rearrangement of a variety of propargylic alcohols. Gram-scale experiments showed the potential of this synergistic protocol for practical application.
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Affiliation(s)
- Yong-Liang Ban
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Long You
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Kai-Wen Feng
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Fei-Cen Ma
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Xiao-Ling Jin
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
| | - Qiang Liu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, People's Republic of China
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29
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Gangani AJ, Kumar P, Fernandes RA. Concise Stereoselective Synthesis of β-Hydroxy-γ-lactones: (4 R,5 R)-4-Hydroxy-γ-decalactone from the Japanese Orange Fly and Enantiomers of Arachnid Harvestmen Isolates. JOURNAL OF NATURAL PRODUCTS 2021; 84:120-125. [PMID: 33390009 DOI: 10.1021/acs.jnatprod.0c01207] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The naturally occurring (4R,5R)-4-hydroxy-γ-decalactone from the Japanese orange fly and the antipode of (4S,5R)-4-hydroxy-γ-dodecalactone from the harvestmen arachnid and their stereoisomers are synthesized from the chiral pool material d-glucono-δ-lactone in a few steps. The one-pot conversion of the latter to γ-vinyl-β-hydroxy-γ-lactone, cross-metathesis with requisite olefin, and hydrogenation enabled the synthesis of syn-lactones in just a two-pot operation. An additional efficient Pd-catalyzed allylic isomerization of γ-vinyl-β-hydroxy-γ-lactone led to the anti-lactones in high yields.
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Affiliation(s)
- Ashvin J Gangani
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076 Maharashtra, India
| | - Praveen Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076 Maharashtra, India
| | - Rodney A Fernandes
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076 Maharashtra, India
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30
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Hou H, Sun Y, Pan Y, Yu H, Han Y, Shi Y, Yan C, Zhu S. Visible-Light Mediated Diarylselenylative Cyclization of 1,6-Enynes. J Org Chem 2021; 86:1273-1280. [PMID: 33283502 DOI: 10.1021/acs.joc.0c02529] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
We herein described a selenylative cyclization reaction of enynes by the utilization of diselenides as radical sources. The visible-light irradiation of the reaction mixture enables the generation of the selenium atom radical to trigger the radical addition/cyclization/selenation sequences. Both terminal alkyne and internal alkyne derived 1,6-enynes were tested and suitable for the current synthetic protocol, delivering various kinds of selenium-containing cycles in good yields.
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Affiliation(s)
- Hong Hou
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yue Sun
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yingjie Pan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Huaguang Yu
- Key Laboratory of Optoelectronic Chemical Materials and Devices, Ministry of Education, School of Chemical and Environmental Engineering, Jianghan University, Wuhan 430056, China
| | - Ying Han
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Yaocheng Shi
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Chaoguo Yan
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
| | - Shaoqun Zhu
- School of Chemistry & Chemical Engineering, Yangzhou University, Yangzhou 225009, China
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31
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Zhou X, Hao J, Kong Y, Xu R. Iron-catalyzed cascade reaction of C(sp 3)-Se bond cross-coupling/C-N bond formation. Chem Commun (Camb) 2021; 57:5426-5429. [PMID: 33949472 DOI: 10.1039/d1cc01564h] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
An iron-catalyzed cascade reaction of C(sp3)-Se bond cross-coupling/C-N bond formation was developed. Various 5,13a-dihydro-6H,8H-benzo[5,6][1,3]selenazino[2,3-a]isoquinolin-8-one derivatives were synthesized under mild conditions starting from 1,2,3,4-tetrahydroisoquinolines and 2-hydroselenobenzoic acids. This protocol provides an economical approach for C(sp3)-Se bond formation.
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Affiliation(s)
- Xinyan Zhou
- Department of Biology and Environment, Jiyang College of Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| | - Jin Hao
- Department of Biology and Environment, Jiyang College of Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| | - Yilin Kong
- Department of Biology and Environment, Jiyang College of Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
| | - Runsheng Xu
- Department of Biology and Environment, Jiyang College of Zhejiang A&F University, Shaoxing 311800, Zhejiang, China.
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32
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He M, Gu L, Tan Y, Wang Y, Wang Y, Zhang C, Ma W. Palladium‐Catalyzed Distal C−H Selenylation of 2‐Aryl Acetamides with Diselenides and Selenyl Chlorides. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000948] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Meicui He
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
| | - Linghui Gu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
| | - Yuqiang Tan
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
| | - Yang Wang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
| | - Yuchi Wang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
| | - Chunran Zhang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
| | - Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province, Sichuan Industrial Institute of Antibiotics Chengdu University People's Republic of China 610052 city is missing
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33
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Muthusamy S, Malarvizhi M, Suresh E. BF
3
⋅ OEt
2
Catalyzed Synthesis of 1,3‐Thiazines/‐Selenazines. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000563] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | | | - Eringathodi Suresh
- Analytical Discipline and Centralized Instrumentation Facility Central Salt & Marine Chemicals Research Institute Bhavnagar 364 002 India
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34
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Lin Y, Hou X, Li B, Du D. Organocatalytic Remote Asymmetric Inverse‐Electron‐Demand Oxa‐Diels‐Alder Reaction of Allyl Ketones with Isatin‐Derived Unsaturated Keto Esters. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001242] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Ye Lin
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Xi‐Qiang Hou
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Bing‐Yu Li
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
| | - Da‐Ming Du
- School of Chemistry and Chemical Engineering Beijing Institute of Technology 5 South Zhongguancun Street Beijing 100081 People's Republic of China
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35
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Yao HF, Wang DL, Li FH, Wu B, Cai ZJ, Ji SJ. Synthesis of organoselenyl isoquinolinium imides via iron(III) chloride-mediated tandem cyclization/selenation of N'-(2-alkynylbenzylidene)hydrazides and diselenides. Org Biomol Chem 2020; 18:7577-7584. [PMID: 32945312 DOI: 10.1039/d0ob01517b] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
This report describes the synthesis of organoselenyl isoquinolinium imides through a tandem cyclization between N'-(2-alkynylbenzylidene)hydrazides and diselenides. The reaction was carried out at room temperature under an ambient atmosphere using cheap iron(iii) chloride as the metallic source. The strategy shows good tolerance to a broad range of N'-(2-alkynylbenzylidene)hydrazides and diselenides, and forms C-N and C-Se bonds in one step. The obtained product is further transformed into a bioactive H-pyrazolo[5,1-a]isoquinoline skeleton easily via a silver catalyzed [3 + 2] cycloaddition.
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Affiliation(s)
- Hai-Feng Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology, Soochow University, 199 Ren-Ai Road, Suzhou, Jiangsu 215123, China.
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36
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Cheng Q, Chen J, Lin S, Ritter T. Allylic Amination of Alkenes with Iminothianthrenes to Afford Alkyl Allylamines. J Am Chem Soc 2020; 142:17287-17293. [PMID: 33001638 PMCID: PMC7584367 DOI: 10.1021/jacs.0c08248] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Allylic C-H amination is currently accomplished with (sulfon)amides or carbamates. Here we show the first allylic amination that can directly afford alkyl allylamines, enabled by the reactivity of thianthrene-based nitrogen sources that can be prepared from primary amines in a single step.
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Affiliation(s)
- Qiang Cheng
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Junting Chen
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Songyun Lin
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
| | - Tobias Ritter
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, D-45470 Mülheim an der Ruhr, Germany
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37
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Teh WP, Obenschain DC, Black BM, Michael FE. Catalytic Metal-free Allylic C-H Amination of Terpenoids. J Am Chem Soc 2020; 142:16716-16722. [PMID: 32909748 DOI: 10.1021/jacs.0c06997] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The selective replacement of C-H bonds in complex molecules, especially natural products like terpenoids, is a highly efficient way to introduce new functionality and/or couple fragments. Here, we report the development of a new metal-free allylic amination of alkenes that allows the introduction of a wide range of nitrogen functionality at the allylic position of alkenes with unique regioselectivity and no allylic transposition. This reaction employs catalytic amounts of selenium in the form of phosphine selenides or selenoureas. Simple sulfonamides and sulfamates can be used directly in the reaction without the need to prepare isolated nitrenoid precursors. We demonstrate the utility of this transformation by aminating a large set of terpenoids in high yield and regioselectivity.
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Affiliation(s)
- Wei Pin Teh
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Derek C Obenschain
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Blaise M Black
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
| | - Forrest E Michael
- Department of Chemistry, University of Washington, Box 351700, Seattle, Washington 98195-1700, United States
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38
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Sushmita, Aggarwal T, Kumar S, Verma AK. Exploring the behavior of the NFSI reagent as a nitrogen source. Org Biomol Chem 2020; 18:7056-7073. [PMID: 32909593 DOI: 10.1039/d0ob01429j] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/25/2024]
Abstract
The diverse biological activities of nitrogen-containing compounds make the construction of the C-N bond of great importance. As N-fluorobenzenesulfonimide, one of the most abundant chemical feedstock, has a dual behaviour, i.e. as an electrophilic fluorination and amidation source, it attracts the attention of synthetic chemists for exploitation. This review comprehensively summarizes the significant progress of the efficient and mild amidation reactions, with an emphasis on approaches for the generation of nitrogen-centered intermediates, related mechanisms and new synthetic chemistry methods that offer opportunities to overcome obstacles in pharmaceutical applications. In this perspective, we discuss the developments in the amidation reaction using NFSI in the past decade. We discuss the recent progress, challenges and future outcomes in the area of amidation chemistry using commercially available NFSI.
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Affiliation(s)
- Sushmita
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Trapti Aggarwal
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Sonu Kumar
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Akhilesh K Verma
- Synthetic Organic Chemistry Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
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39
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Guimarães LF, Bettanin L, da Trindade RN, da Silva C, Leitemberger A, Godoi M, Galetto FZ. One-pot modular synthesis of β-chalcogen amides via regioselective 2-oxazolines ring-opening reaction promoted by indium chalcogenolates under microwave irradiation. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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40
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Miranda-Rojas S, Mendizabal F. Exploration of the Interaction Strength at the Interface of Anionic Chalcogen Anchors and Gold (111)-Based Nanomaterials. NANOMATERIALS (BASEL, SWITZERLAND) 2020; 10:nano10061237. [PMID: 32630576 PMCID: PMC7353086 DOI: 10.3390/nano10061237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/10/2020] [Revised: 06/16/2020] [Accepted: 06/20/2020] [Indexed: 06/11/2023]
Abstract
Nowadays, the use of sulfur-based ligands to modify gold-based materials has become a common trend. Here, we present a theoretical exploration of the modulation of the chalcogenides-gold interaction strength, using sulfur, selenium, and tellurium as anchor atoms. To characterize the chalcogenide-gold interaction, we designed a nanocluster of 42 gold atoms (Au42) to model a gold surface (111) and a series of 60 functionalized phenyl-chalcogenolate ligands to determine the ability of electron-donor and -withdrawing groups to modulate the interaction. The analysis of the interaction was performed by using energy decomposition analysis (EDA), non-covalent interactions index (NCI), and natural population analysis (NPA) to describe the charge transfer processes and to determine data correlation analyses. The results revealed that the magnitudes of the interaction energies increase following the order S < Se < Te, where this interaction strength can be augmented by electron-donor groups, under the donor-acceptor character the chalcogen-gold interaction. We also found that the functionalization in meta position leads to better control of the interaction strength than the ortho substitution due to the steric and inductive effects involved when functionalized in this position.
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Affiliation(s)
- Sebastián Miranda-Rojas
- Departamento de Ciencias Químicas, Facultad de Ciencias Exactas, Universidad Andres Bello, Av. República 275, Santiago PO 8370146, Chile
| | - Fernando Mendizabal
- Departamento de Química, Facultad de Ciencias, Universidad de Chile, Las Palmeras 3425, Ñuñoa, Santiago PO 7800003, Chile
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41
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42
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Radatz CS, Coelho FL, Gil ES, da Silveira Santos F, Schneider JMFM, Gonçalves PFB, Rodembusch FS, Schneider PH. Ground and excited-state properties of 1,3-benzoselenazole derivatives: A combined theoretical and experimental photophysical investigation. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.127817] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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43
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Yao HF, Li FH, Li J, Wang SY, Ji SJ. Iron(iii) chloride-promoted cyclization of α,β-alkynic tosylhydrazones with diselenides: synthesis of 4-(arylselanyl)-1H-pyrazoles. Org Biomol Chem 2020; 18:1987-1993. [PMID: 32107516 DOI: 10.1039/d0ob00048e] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
A highly efficient iron(iii) chloride-promoted cyclization between α,β-alkynic tosylhydrazones and diselenides to form a 4-(arylselanyl)-1H-pyrazole skeleton is studied. This reaction forms C-N and C-Se bonds in one step by utilizing inexpensive iron(iii) chloride instead of expensive transition metal additives. This strategy features easily synthesized substrates, mild reaction conditions and high tolerance to functional groups.
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Affiliation(s)
- Hai-Feng Yao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology, Soochow University, China.
| | - Fang-Hui Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology, Soochow University, China.
| | - Jian Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology, Soochow University, China.
| | - Shun-Yi Wang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology, Soochow University, China.
| | - Shun-Jun Ji
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science & Collaborative Innovation Centre of Suzhou Nano Science and Technology, Soochow University, China.
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44
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Mallick S, Baidya M, Mahanty K, Maiti D, De Sarkar S. Electrochemical Chalcogenation of
β,γ
‐Unsaturated Amides and Oximes to Corresponding Oxazolines and Isoxazolines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901262] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Samrat Mallick
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur 741246, West Bengal India
| | - Mrinmay Baidya
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur 741246, West Bengal India
| | - Kingshuk Mahanty
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur 741246, West Bengal India
| | - Debabrata Maiti
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur 741246, West Bengal India
| | - Suman De Sarkar
- Department of Chemical SciencesIndian Institute of Science Education and Research Kolkata Mohanpur 741246, West Bengal India
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45
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Ma W, Kaplaneris N, Fang X, Gu L, Mei R, Ackermann L. Chelation-assisted transition metal-catalysed C–H chalcogenylations. Org Chem Front 2020. [DOI: 10.1039/c9qo01497g] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
This review summarizes recent advances in C–S and C–Se formationsviatransition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.
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Affiliation(s)
- Wenbo Ma
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu
- P. R. China
| | - Nikolaos Kaplaneris
- Institute fuer Organische und Biomolekular Chemie
- Georg-August-Universitaet Goettingen
- 37077 Goettingen
- Germany
| | - Xinyue Fang
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu
- P. R. China
| | - Linghui Gu
- Antibiotics Research and Re-evaluation Key Laboratory of Sichuan Province
- Sichuan Industrial Institute of Antibiotics
- Chengdu University
- Chengdu
- P. R. China
| | - Ruhuai Mei
- College of Pharmacy and Biological Engineering Chengdu University
- Chengdu
- P. R. China
| | - Lutz Ackermann
- Institute fuer Organische und Biomolekular Chemie
- Georg-August-Universitaet Goettingen
- 37077 Goettingen
- Germany
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46
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Guan S, Chen Y, Wu H, Xu R. Iron-catalyzed tandem reaction of C–Se bond coupling/selenosulfonation of indols with benzeneselenols. RSC Adv 2020; 10:27058-27063. [PMID: 35515762 PMCID: PMC9055526 DOI: 10.1039/d0ra05922f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 07/15/2020] [Indexed: 11/23/2022] Open
Abstract
An iron-catalyzed tandem reaction of C–Se bond coupling/selenosulfonation was developed. Starting from sample indols and benzeneselenols versatile biologically active 2-benzeneselenonyl-1H-indoles derivatives were efficiently synthesized. The reaction mechanism was studied by the deuterium isotope study and in situ ESI-MS experiments. This protocol features mild reaction conditions, wider substrate scope and provides an economical approach toward C(sp2)–Se bond formation. Iron-catalyzed tandem reaction of C–Se bond coupling/selenosulfonation.![]()
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Affiliation(s)
- Senling Guan
- Department of Biology and Environment
- Jiyang College of Zhejiang A&F University
- Shaoxing 311800
- China
| | - Yue Chen
- Department of Biology and Environment
- Jiyang College of Zhejiang A&F University
- Shaoxing 311800
- China
| | - Hongjie Wu
- Department of Biology and Environment
- Jiyang College of Zhejiang A&F University
- Shaoxing 311800
- China
| | - Runsheng Xu
- Department of Biology and Environment
- Jiyang College of Zhejiang A&F University
- Shaoxing 311800
- China
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47
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Wang X, Wang Q, Xue Y, Sun K, Wu L, Zhang B. An organoselenium-catalyzed N1- and N2-selective aza-Wacker reaction of alkenes with benzotriazoles. Chem Commun (Camb) 2020; 56:4436-4439. [DOI: 10.1039/d0cc01079k] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A novel and practical organoselenium-catalyzed, N1- and N2-selective controllable aza-Wacker reaction is realized, which provides an easy access to N1- and N2-olefinated benzotriazole derivatives.
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Affiliation(s)
- Xin Wang
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
- College of Chemistry and Chemical Engineering
| | - Qinlin Wang
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Yanru Xue
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Kai Sun
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Lanlan Wu
- College of Chemistry and Chemical Engineering
- Anyang Normal University
- Anyang 455000
- P. R. China
| | - Bing Zhang
- School of Chemical Engineering
- Zhengzhou University
- Zhengzhou 450001
- P. R. China
- College of Chemistry and Chemical Engineering
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48
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Tabor JR, Obenschain DC, Michael FE. Selenophosphoramide-catalyzed diamination and oxyamination of alkenes. Chem Sci 2019; 11:1677-1682. [PMID: 32206288 PMCID: PMC7069249 DOI: 10.1039/c9sc05335b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Accepted: 12/22/2019] [Indexed: 12/13/2022] Open
Abstract
Scavenging fluoride from a selenophosphoramide-catalyzed alkene oxidation reaction suppresses the known syn-elimination pathway, enabling alkene diamination/oxyamination reactions via substitution.
A new selenophosphoramide-catalyzed diamination of terminal- and trans-1,2-disubstituted olefins is presented. Key to the success of this transformation was the introduction of a fluoride scavenger, trimethylsilyl trifluoromethanesulfonate (TMSOTf), to prevent a competitive syn-elimination pathway, as was the use of a phosphoramide ligand on selenium to promote the desired substitution reaction. A screen of catalysts revealed that more electron-rich phosphine ligands resulted in higher yields of the desired product, with selenophosphoramides giving the optimal results. A broad range of substrates and functional groups were tolerated and yields were generally good to excellent. For (E)-1,2-disubstituted olefins, diastereoselectivities were always high, giving exclusively anti products. The conditions were also applied to substrates bearing internal nucleophiles such as esters and carbonates, giving rise to 1,2-aminoesters and cyclic carbonates, respectively.
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Affiliation(s)
- John R Tabor
- University of Washington , Department of Chemistry , Box 351700, Seattle , Washington 98195-1700 , USA .
| | - Derek C Obenschain
- University of Washington , Department of Chemistry , Box 351700, Seattle , Washington 98195-1700 , USA .
| | - Forrest E Michael
- University of Washington , Department of Chemistry , Box 351700, Seattle , Washington 98195-1700 , USA .
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Zheng Z, Trofymchuk OS, Kurogi T, Varela E, Mindiola DJ, Walsh PJ. Selenenate Anions (PhSeO
−
) as Organocatalyst: Synthesis of
trans
‐Stilbenes and a PPV Derivative. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901201] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Zhipeng Zheng
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
| | - Oleksandra S. Trofymchuk
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
- Núcleo Científico Multidisciplinario-DI University of Talca 747 Talca Chile
| | - Takashi Kurogi
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
| | - Elena Varela
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
| | - Daniel J. Mindiola
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
| | - Patrick J. Walsh
- Department of Chemistry, Roy and Diana Vagelos Laboratories, Penn/Merck Laboratory for High-Throughput Experimentation University of Pennsylvania Philadelphia PA 19104-6323 United States
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50
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Tao Z, Gilbert BB, Denmark SE. Catalytic, Enantioselective syn-Diamination of Alkenes. J Am Chem Soc 2019; 141:19161-19170. [PMID: 31742399 DOI: 10.1021/jacs.9b11261] [Citation(s) in RCA: 55] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The enantioselective, vicinal diamination of alkenes represents one of the stereocontrolled additions that remains an outstanding challenge in organic synthesis. A general solution to this problem would enable the efficient and selective preparation of widely useful, enantioenriched diamines for applications in medicinal chemistry and catalysis. In this article, we describe the first enantioselective, syn-diamination of simple alkenes mediated by a chiral, enantioenriched organoselenium catalyst together with a N,N'-bistosyl urea as the bifunctional nucleophile and N-fluorocollidinium tetrafluoroborate as the stoichiometric oxidant. Diaryl, aryl-alkyl, and alkyl-alkyl olefins bearing a variety of substituents are all diaminated in consistently high enantioselectivities but variable yields. The reaction likely proceeds through a Se(II)/Se(IV) redox catalytic cycle reminiscent of the syn-dichlorination reported previously. Furthermore, the syn-stereospecificity of the transformation shows promise for highly enantioselective diaminations of alkenes with no strong steric or electronic bias.
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Affiliation(s)
- Zhonglin Tao
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Bradley B Gilbert
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
| | - Scott E Denmark
- Roger Adams Laboratory, Department of Chemistry , University of Illinois , Urbana , Illinois 61801 , United States
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