1
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Fang R, Zheng L, Chen X, Wang C, Chen Y. An FeCl 3-catalyzed three-component reaction for the synthesis of β-(1,2,3-triazolyl)-ketones using DMF as a one-carbon source. Org Biomol Chem 2024; 22:3866-3870. [PMID: 38646715 DOI: 10.1039/d4ob00207e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
An FeCl3-catalyzed oxidative condensation of NH-1,2,3-triazoles, aryl methyl ketones (or acetophenones) and DMF (N,N-dimethylformamide) for the synthesis of β-(1,2,3-triazolyl)-ketones was developed. DMF serves as a one-carbon source, and the resulting products display diverse reaction selectivity, highlighting the existence of distinct approaches.
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Affiliation(s)
- Ruilin Fang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Lei Zheng
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
- Department of Neuropharmacology and Novel Drug Discovery, School of Pharmaceutical Sciences, Southern Medical University, Guangzhou 510515, China
| | - Xuyang Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Can Wang
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
| | - Yunfeng Chen
- School of Chemistry and Environmental Engineering, Wuhan Institute of Technology, Wuhan 430205, China.
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2
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Chen WY, Lin WH, Kuo CJ, Liang CF. Base-mediated ketenimine formation from N-sulfonylthioimidates for the synthesis of 5-amino-1-vinyl/aryl-1,2,3-triazoles. Chem Commun (Camb) 2023; 59:1297-1300. [PMID: 36633138 DOI: 10.1039/d2cc06708k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
N-Sulfonylthioimidate was converted to ketenimine under basic conditions. The reaction with vinyl/aryl azides was induced to cause dipolar cycloaddition to form 5-amino-1-vinyl/aryl-1,2,3-triazoles. The advantages of this method are high efficiency, structural diversity of products favorable yields and applicability to gram-scale operations.
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Affiliation(s)
- Wan-Yu Chen
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Wei-Han Lin
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Chia-Jou Kuo
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
| | - Chien-Fu Liang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan.
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3
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Gulledge ZZ, Duda DP, Dixon DA, Carrick JD. Microwave-Assisted, Metal- and Azide-Free Synthesis of Functionalized Heteroaryl-1,2,3-triazoles via Oxidative Cyclization of N-Tosylhydrazones and Anilines. J Org Chem 2022; 87:12632-12643. [PMID: 36126149 DOI: 10.1021/acs.joc.2c01042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
As the search for competent soft-Lewis basic complexants for separations continues to evolve toward identification of a chemoselective moiety for speciation of the minor actinides from the electronically similar lanthanides, synthetic methods must congruently evolve. Synthetic options to convergently construct unsymmetric heteroaryl donor complexants incorporating a 1,2,3-triazole from accessible starting materials for evaluation in separation assays necessitated the development of the described methodology. In this report, metal- and azide-free synthesis of diversely functionalized pyridyl-1,2,3-triazole derivatives facilitated by microwave irradiation was leveraged to prepare a novel class of tridentate ligands. The described work negates the incorporation of thermally sensitive and toxic organoazides by using N-tosylhydrazones and anilines as viable synthetic equivalents in an efficient 12 min reaction time. Adaptation to alternative synthons useful for drug discovery was also realized. Method discovery, optimization, N-tosylhydrazone and aniline substrate scope, as well as a preliminary mechanistic hypotheses supported by DFT calculations are reported herein.
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Affiliation(s)
- Zachary Z Gulledge
- Department of Chemistry, Tennessee Technological University, Cookeville, Tennessee 38505-0001, United States
| | - Damian P Duda
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - David A Dixon
- Department of Chemistry, The University of Alabama, Tuscaloosa, Alabama 35487, United States
| | - Jesse D Carrick
- Department of Chemistry, Tennessee Technological University, Cookeville, Tennessee 38505-0001, United States
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4
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Caracelli I, Teixeira WKO, de Albuquerque DY, Schwab RS, Tiekink ERT. The crystal structure of 1-(2-iodophenyl)-4-phenyl-1 H-1,2,3-triazole, C 14H 10IN 3. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0408] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C14H10IN3, orthorhombic, P212121 (no. 19), a = 8.0778(6) Å, b = 11.1909(10) Å, c = 14.3114(12) Å, V = 1293.72(19) Å3, Z = 4, R
gt
(F) = 0.0312, wR
ref
(F
2) = 0.0790, T = 290 K.
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Affiliation(s)
- Ignez Caracelli
- Departmento de Física , BioMat, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos SP , Brazil
| | - Wystan K. O. Teixeira
- Departamento de Química , Laboratório de Síntese, Catálise e Modelagem Molecular (SintCatMol), CERSusChem, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos , SP , Brazil
| | - Danilo Yano de Albuquerque
- Departamento de Química , Laboratório de Síntese, Catálise e Modelagem Molecular (SintCatMol), CERSusChem, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos , SP , Brazil
| | - Ricardo S. Schwab
- Departamento de Química , Laboratório de Síntese, Catálise e Modelagem Molecular (SintCatMol), CERSusChem, Universidade Federal de São Carlos , C. P. 676, 13565-905 São Carlos , SP , Brazil
| | - Edward R. T. Tiekink
- Research Centre for Crystalline Materials, School of Medical and Life Sciences, Sunway University , 47500 Bandar Sunway , Selangor Darul Ehsan , Malaysia
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5
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1,3‐Dipolar Cycloaddition of Alkanone Enolates with Azides in Deep Eutectic Solvents for the Metal‐free Regioselective Synthesis of Densely Functionalized 1,2,3‐Triazoles. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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6
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Gao G, Kuantao, Mao, Lv L, Li Z. Three‐Component Coupling of α‐Trifluoromethyl Carbonyls, Azides and Amines for the Regioselective Synthesis of 1,4,5‐Trisubstituted 1,2,3‐Triazoles. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200094] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ge Gao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Kuantao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Mao
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Leiyang Lv
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
| | - Zhiping Li
- Key Laboratory of Advanced Light Conversion Materials and Biophotonics, Department of Chemistry Renmin University of China Beijing 100872 People's Republic of China
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7
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Ghosh B, Banerjee A, Roy L, Manna RN, Nath R, Paul A. The Role of Copper Salts and O
2
in the Mechanism of C≡N Bond Activation for Facilitating Nitrogen Transfer Reactions**. Angew Chem Int Ed Engl 2022; 61:e202116868. [DOI: 10.1002/anie.202116868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Indexed: 11/12/2022]
Affiliation(s)
- Boyli Ghosh
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Ambar Banerjee
- Department of Physics Stockholm University Frescativägen 11419 Stockholm Sweden
| | - Lisa Roy
- Institute of Chemical Technology Mumbai – IOC Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre Bhubaneswar 751013 India
| | - Rabindra Nath Manna
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Rounak Nath
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Ankan Paul
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
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8
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[4 + 1] Annulation of in situ generated azoalkenes with amines: A powerful approach to access 1-substituted 1,2,3-triazoles. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.008] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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9
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Ghosh B, Banerjee A, Roy L, Manna RN, Nath R, Paul A. The Role of Copper Salts and O
2
in the Mechanism of C≡N Bond Activation for Facilitating Nitrogen Transfer Reactions**. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202116868] [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)
- Boyli Ghosh
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Ambar Banerjee
- Department of Physics Stockholm University Frescativägen 11419 Stockholm Sweden
| | - Lisa Roy
- Institute of Chemical Technology Mumbai – IOC Odisha Campus Bhubaneswar IIT Kharagpur Extension Centre Bhubaneswar 751013 India
| | - Rabindra Nath Manna
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Rounak Nath
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
| | - Ankan Paul
- School of Chemical Sciences Indian Association for the Cultivation of Science 2A & 2B, Raja S. C. Mullick Road Jadavpur Kolkata 700032 India
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10
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Amine-catalyzed synthesis of N2-sulfonyl 1,2,3-triazole in water and the tunable N2-H 1,2,3-triazole synthesis in DMSO via metal-free enamine annulation. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.08.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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11
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Zhao W, Xu J, Yang F, Zeng X. Advances on the Synthesis of N—N Bonds. CHINESE J ORG CHEM 2022. [DOI: 10.6023/cjoc202111019] [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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12
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Lv L, Gao G, Luo Y, Mao K, Li Z. Three-Component Reactions of α-CF 3 Carbonyls, NaN 3, and Amines for the Synthesis of NH-1,2,3-Triazoles. J Org Chem 2021; 86:17197-17212. [PMID: 34724616 DOI: 10.1021/acs.joc.1c02288] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The development of methods for the assembly of 1,2,3-triazoles is an important topic due to the broad applications of this motif in various scientific fields. In this work, we demonstrate that the three-component assembly of α-CF3 carbonyls, NaN3, and amines was achieved for the selective construction of a variety of 5-amino NH-1,2,3-triazoles under transition-metal-free and open-air conditions. The method provides a general and operationally simple route to functionalized biologically important molecules including carbohydrates, nucleosides, and peptides and exhibits broad substrate scopes. We further demonstrate that the NH-1,2,3-triazoles can be smoothly converted to the regiospecific N-2 alkylated 1,2,3-triazole products. Mechanistic studies based on experiments and density functional theory calculations showed that this transformation proceeds via defluorination-initiated programmed substitution/cyclization/H-transfer to give the 4,5-difunctionalized captodative NH-1,2,3-triazole product.
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Affiliation(s)
- Leiyang Lv
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Ge Gao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Yani Luo
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Kuantao Mao
- Department of Chemistry, Renmin University of China, Beijing 100872, China
| | - Zhiping Li
- Department of Chemistry, Renmin University of China, Beijing 100872, China
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13
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Huang C, Geng X, Zhao P, Zhou Y, Yu XX, Wang LS, Wu YD, Wu AX. Direct Synthesis of 4-Aryl-1,2,3-triazoles via I 2-Promoted Cyclization under Metal- and Azide-Free Conditions. J Org Chem 2021; 86:13664-13672. [PMID: 34519212 DOI: 10.1021/acs.joc.1c01702] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We herein report an iodine-mediated formal [2 + 2 + 1] cyclization of methyl ketones, p-toluenesulfonyl hydrazines, and 1-aminopyridinium iodide for preparation of 4-aryl-NH-1,2,3-triazoles under metal- and azide-free conditions. Notably, this is achieved using p-toluenesulfonyl hydrazines and 1-aminopyridinium iodide as azide surrogates, providing a novel route toNH-1,2,3-triazoles. Furthermore, this approach provides rapid and practical access to potent inhibitors of indoleamine 2,3-dioxygenase (IDO).
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Affiliation(s)
- Chun Huang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Xiao Geng
- Advanced Research Institute and Department of Chemistry, Taizhou University, Taizhou, Zhejiang 318000, P. R. China
| | - Peng Zhao
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - You Zhou
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Xiao-Xiao Yu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Li-Sheng Wang
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - Yan-Dong Wu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, P. R. China
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14
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A palladium-catalyzed Barluenga cross-coupling - reductive cyclization sequence to substituted indoles. Tetrahedron 2021; 94. [PMID: 34483377 DOI: 10.1016/j.tet.2021.132331] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A short and flexible synthesis of substituted indoles employing two palladium-catalyzed reactions, a Barluenga cross-coupling of p-tosylhydrazones with 2-nitroarylhalides followed by a palladium-catalyzed, carbon monoxide-mediated reductive cyclization has been developed. A one-pot, two-step methodology was further developed, eliminating isolation and purification of the cross-coupling product. This was accomplished by utilizing the initially added 0.025 equivalents of bis(triphenylphosphine)palladium dichloride, thus serving a dual role in the cross-coupling and the reductive cyclization. It was found that addition of 1,3-bis(diphenylphosphino)propane and carbon monoxide after completion of the Barluenga reaction afforded, in most cases, significantly better overall yields.
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15
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Talukdar R, Singh V, Mourya H, Nasibullah M, Tiwari B. Stitching Triazoles to Arenes via a Transition Metal-Free Aryne Diels-Alder/1,3-Prototropic Shift/Dehydrobromination Cascade. J Org Chem 2021; 86:12277-12284. [PMID: 34328329 DOI: 10.1021/acs.joc.1c00562] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
The 1,2,3-triazole-fused polyaromatic frameworks are traditionally obtained through transition metal-catalyzed C-H/C-X arylation of the preinstalled triazoles at a very high temperature. Herein, a transition metal-free direct synthesis via an aryne Diels-Alder/1,3-prototropic shift/dehydrobromination cascade is reported. This method gives access to triazole-fused aromatics as well as the corresponding dihydrocarbocycles under mild reaction conditions.
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Affiliation(s)
- Ranadeep Talukdar
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Vikram Singh
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Hemlata Mourya
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Malik Nasibullah
- Department of Chemistry, Integral University, Dasauli, Bas-ha Kursi Road, Lucknow 226026, India
| | - Bhoopendra Tiwari
- Division of Molecular Synthesis & Drug Discovery, Centre of Biomedical Research, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
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16
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Panish R, Thieu T, Balsells J. Copper-Catalyzed Synthesis of 5-Carboxyl-4-perfluoroalkyl Triazoles. Org Lett 2021; 23:5937-5941. [PMID: 34286985 DOI: 10.1021/acs.orglett.1c02037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A facile, scalable synthesis of previously inaccessible trifluoromethyl and perfluoroalkyl triazoles is disclosed. Mediated by copper, this catalytic protocol enables access to 4-perfluoroalkyl triazoles from commodity chemicals. A catalytic Cu(II) system wherein copper serves two roles (generation of N-tosyl-2-vinyldiazenes and N-N bond formation) allows for rapid assembly of 5-carboxyl-4-perfluoroalkyl-triazoles from N-tosylhydrazide and perfluoroalkyl acetoacetates. Ethyl 4,4,4-trifluoro-3-(2-tosylhydrazineylidene)butanoate, a previously unknown air and bench stable reagent for access to CF3-triazoles, was developed to enable this chemistry. This led to the identification of a series of crystalline hydrazone reagents that could be used as templates to construct an array of triazoles. Hydrolysis and decarboxylation parlay this approach into a means to access 5-H-4-CF3-triazoles. The approach exhibits high functional group tolerance and can be executed on a multigram scale.
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Affiliation(s)
- Robert Panish
- Discovery Process Research, Janssen R&D, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Tho Thieu
- Discovery Chemistry, Janssen R&D, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
| | - Jaume Balsells
- Discovery Process Research, Janssen R&D, 1400 McKean Road, Spring House, Pennsylvania 19477, United States
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17
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Ma L, Jin F, Cheng X, Tao S, Jiang G, Li X, Yang J, Bao X, Wan X. [2 + 2 + 1] Cycloaddition of N-tosylhydrazones, tert-butyl nitrite and alkenes: a general and practical access to isoxazolines. Chem Sci 2021; 12:9823-9830. [PMID: 34349956 PMCID: PMC8293996 DOI: 10.1039/d1sc02352g] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 06/19/2021] [Indexed: 12/11/2022] Open
Abstract
N-Tosylhydrazones have proven to be versatile synthons over the past several decades. However, to our knowledge, the construction of isoxazolines based on N-tosylhydrazones has not been examined. Herein, we report the first demonstrations of [2 + 2 + 1] cycloaddition reactions that allow the facile synthesis of isoxazolines, employing N-tosylhydrazones, tert-butyl nitrite (TBN) and alkenes as reactants. This process represents a new type of cycloaddition reaction with a distinct mechanism that does not involve the participation of nitrile oxides. This approach is both general and practical and exhibits a wide substrate scope, nearly universal functional group compatibility, tolerance of moisture and air, the potential for functionalization of complex bioactive molecules and is readily scaled up. Both control experiments and theoretical calculations indicate that this transformation proceeds via the in situ generation of a nitronate from the coupling of N-tosylhydrazone and TBN, followed by cycloaddition with an alkene and subsequent elimination of a tert-butyloxy group to give the desired isoxazoline.
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Affiliation(s)
- Liang Ma
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Feng Jin
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Xionglve Cheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Suyan Tao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Gangzhong Jiang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Xingxing Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Jinwei Yang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Xiaoguang Bao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
| | - Xiaobing Wan
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University Suzhou 215123 China
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18
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Badawi MAAH, Abu-Orabi ST. Quantum mechanical investigations of base-catalyzed cycloaddition reaction between phenylacetylene and azidobenzene. JOURNAL OF CHEMICAL RESEARCH 2021; 45:519-525. [DOI: 10.1177/1747519820946253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
In this study, the mechanism for both the Huisgen 1,3-dipolar cycloaddition and the base-catalyzed cycloaddition reactions between phenylacetylene and azidobenzene has been investigated with density functional theory, namely at the M06-2X/6-31G(d) computational level. Later, the reaction has been modeled with a representative simple alkyne and a simple azide to concentrate solely on how the difference bases affect the mechanism of the reaction between phenylacetylene and azidobenzene as charged components. In this study, another mechanism of this reaction with uncharged components has been proposed to compare the calculated thermodynamic and kinetic properties for charged and uncharged systems. The calculated activation barrier differences between the catalyzed and the uncatalyzed reactions are consistent with the faster and the regioselective synthesis of the triazole product in the presence of solvents. The calculated barrier of the rate-determining step in the base-catalyzed mechanism with the uncharged system is lower than that with charged systems. Finally, the reaction leading to final product formation in uncharged system is more spontaneous than that in the charged system, and the same applies to the total reaction in the presence of solvents.
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Affiliation(s)
| | - Sultan T Abu-Orabi
- Department of Chemistry, Faculty of Science, Yarmouk University, Irbid, Jordan
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19
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Kumar P, Keshri SK, Kapur M. Ru(II)-Catalyzed, Cu(II)-mediated carbene migratory insertion in the synthesis of trisubstituted pyrroles from isoxazoles. Org Biomol Chem 2021; 19:3428-3433. [PMID: 33899880 DOI: 10.1039/d1ob00255d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A convenient, "one-pot" synthesis of trisubstituted pyrroles via a Ru(ii)-catalyzed, Cu(ii)-mediated reaction of substituted isoxazoles with sulfonylhydrazones has been developed. A series of highly functionalized pyrroles are obtained via a synergistic formation of new C-C and C-N bonds. Mechanistic investigations were carried out to propose the plausible pathway. This protocol provides a facile and expeditious approach for the synthesis of various heterocyclic compounds bearing the pyrrole skeleton.
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Affiliation(s)
- Pravin Kumar
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal Bypass road, Bhopal 462066, MP, India.
| | - Santosh Kumar Keshri
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal Bypass road, Bhopal 462066, MP, India.
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal Bypass road, Bhopal 462066, MP, India.
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20
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Tan K, Jäger C, Körschgen H, Geissler S, Schlenzig D, Buchholz M, Stöcker W, Ramsbeck D. Heteroaromatic Inhibitors of the Astacin Proteinases Meprin α, Meprin β and Ovastacin Discovered by a Scaffold-Hopping Approach. ChemMedChem 2021; 16:976-988. [PMID: 33369214 PMCID: PMC8048867 DOI: 10.1002/cmdc.202000822] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Indexed: 12/20/2022]
Abstract
Astacin metalloproteinases, in particular meprins α and β, as well as ovastacin, are emerging drug targets. Drug-discovery efforts have led to the development of the first potent and selective inhibitors in the last few years. However, the most recent compounds are based on a highly flexible tertiary amine scaffold that could cause metabolic liabilities or decreased potency due to the entropic penalty upon binding to the target. Thus, the aim of this study was to discover novel conformationally constrained scaffolds as starting points for further inhibitor optimization. Shifting from flexible tertiary amines to rigid heteroaromatic cores resulted in a boost in inhibitory activity. Moreover, some compounds already exhibited higher activity against individual astacin proteinases compared to recently reported inhibitors and also a favorable off-target selectivity profile, thus qualifying them as very suitable chemical probes for target validation.
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Affiliation(s)
- Kathrin Tan
- Department of Drug Design and Target Validation MWTFraunhofer Institute for Cell Therapy and Immunology IZIBiocenter, Weinbergweg 2206120Halle (Saale)Germany
| | - Christian Jäger
- Department of Drug Design and Target Validation MWTFraunhofer Institute for Cell Therapy and Immunology IZIBiocenter, Weinbergweg 2206120Halle (Saale)Germany
- present address: Vivoryon Therapeutics N.V.Weinbergweg 2206120Halle (Saale)Germany
| | - Hagen Körschgen
- Institute of Molecular PhysiologyCell and Matrix BiologyJohannes Gutenberg-University MainzJohann-Joachim-Becher-Weg 755128MainzGermany
| | - Stefanie Geissler
- Department of Drug Design and Target Validation MWTFraunhofer Institute for Cell Therapy and Immunology IZIBiocenter, Weinbergweg 2206120Halle (Saale)Germany
| | - Dagmar Schlenzig
- Department of Drug Design and Target Validation MWTFraunhofer Institute for Cell Therapy and Immunology IZIBiocenter, Weinbergweg 2206120Halle (Saale)Germany
| | - Mirko Buchholz
- Department of Drug Design and Target Validation MWTFraunhofer Institute for Cell Therapy and Immunology IZIBiocenter, Weinbergweg 2206120Halle (Saale)Germany
| | - Walter Stöcker
- Institute of Molecular PhysiologyCell and Matrix BiologyJohannes Gutenberg-University MainzJohann-Joachim-Becher-Weg 755128MainzGermany
| | - Daniel Ramsbeck
- Department of Drug Design and Target Validation MWTFraunhofer Institute for Cell Therapy and Immunology IZIBiocenter, Weinbergweg 2206120Halle (Saale)Germany
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21
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Gribanov PS, Atoian EM, Philippova AN, Topchiy MA, Asachenko AF, Osipov SN. One‐Pot Synthesis of 5‐Amino‐1,2,3‐triazole Derivatives via Dipolar Azide−Nitrile Cycloaddition and Dimroth Rearrangement under Solvent‐Free Conditions. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001620] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Pavel S. Gribanov
- A. N. Nesmeyanov Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
| | - Edita M. Atoian
- A. N. Nesmeyanov Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
| | - Anna N. Philippova
- A. N. Nesmeyanov Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
| | - Maxim A. Topchiy
- A. V. Topchiev Institute of Petrochemical Synthesis Russian Academy of Sciences Leninsky Prospect 29 Moscow 119991 Russian Federation
| | - Andrey F. Asachenko
- A. V. Topchiev Institute of Petrochemical Synthesis Russian Academy of Sciences Leninsky Prospect 29 Moscow 119991 Russian Federation
| | - Sergey N. Osipov
- A. N. Nesmeyanov Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya Str. 6 117198 Moscow Russian Federation
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22
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Radhoff N, Studer A. Functionalization of α-C(sp 3 )-H Bonds in Amides Using Radical Translocating Arylating Groups. Angew Chem Int Ed Engl 2021; 60:3561-3565. [PMID: 33215815 PMCID: PMC7898318 DOI: 10.1002/anie.202013275] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 11/19/2020] [Indexed: 01/09/2023]
Abstract
α-C-H arylation of N-alkylamides using 2-iodoarylsulfonyl radical translocating arylating (RTA) groups is reported. The method allows the construction of α-quaternary carbon centers in amides. Various mono- and disubstituted RTA-groups are applied to the arylation of primary, secondary, and tertiary α-C(sp3 )-H-bonds. These radical transformations proceed in good to excellent yields and the cascades comprise a 1,6-hydrogen atom transfer, followed by a 1,4-aryl migration with subsequent SO2 extrusion.
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Affiliation(s)
- Niklas Radhoff
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
| | - Armido Studer
- Organisch-Chemisches InstitutWestfälische Wilhelms-UniversitätCorrensstrasse 4048149MünsterGermany
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23
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Chen FJ, Mamidipalli P, Sabbasani VR, Liu H, Xia Y, Lee D. Three-component coupling reaction for the synthesis of fully substituted triazoles: reactivity control of Cu-acetylide toward alkyl azides and diazo compounds. Org Chem Front 2021. [DOI: 10.1039/d1qo01112j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein, we report a Cu-catalyzed three-component coupling reaction of alkynes, azides, and diazo compounds for the synthesis of fully substituted triazoles.
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Affiliation(s)
- Fa-Jie Chen
- Department College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Phani Mamidipalli
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Venkata Reddy Sabbasani
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Huaqing Liu
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
| | - Yuanzhi Xia
- Department College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou 325035, P. R. China
| | - Daesung Lee
- Department of Chemistry, University of Illinois at Chicago, 845 West Taylor Street, Chicago, IL 60607, USA
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24
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Yang H, Xu TH, Lu SN, Chen Z, Wu XF. Synthesis of 5-trifluoromethyl-1,2,3-triazoles via base-mediated cascade annulation of diazo compounds with trifluoroacetimidoyl chlorides. Org Chem Front 2021. [DOI: 10.1039/d1qo00445j] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A metal-, azide- and CF3-reagent free approach for the synthesis of 5-trifluoromethyl-1,2,3-triazoles via base-mediated cascade annulation of diazo compounds with trifluoroacetimidoyl chlorides has been developed.
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Affiliation(s)
- Hefei Yang
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- People's Republic of China
| | - Tian-Hui Xu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- People's Republic of China
| | - Shu-Ning Lu
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- People's Republic of China
| | - Zhengkai Chen
- Department of Chemistry
- Zhejiang Sci-Tech University
- Hangzhou 310018
- People's Republic of China
| | - Xiao-Feng Wu
- Dalian National Laboratory for Clean Energy
- Dalian Institute of Chemical Physics
- Chinese Academy of Sciences
- Dalian 116023
- China
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25
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Zhang X, Pan Y, Wang H, Liang C, Ma X, Jiao W, Shao H. Strategy to Construct 1,2,3‐Triazoles by K
2
CO
3
‐Mediated [4+1] Annulation Reactions of
N
‐Acetyl Hydrazones with Bifunctional Amino Reagents. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001375] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Xiaoke Zhang
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
- Zunyi Medical University Zunyi Guizhou People's Republic of China
- University of Chinese Academy of Sciences People's Republic of China
| | - Yang Pan
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
- University of Chinese Academy of Sciences People's Republic of China
| | - Haibo Wang
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
- Zhejiang Hongyuan Pharmaceutical Co., Ltd. Chem & APIs. Industrial Zone, Linhai Taizhou Zhejiang People's Republic of China
- University of Chinese Academy of Sciences People's Republic of China
| | - Chong Liang
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
| | - Xiaofeng Ma
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
| | - Wei Jiao
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
| | - Huawu Shao
- Natural Products Research Centre,Chengdu Institute of Biology Chinese Academy of Sciences Chengdu People's Republic of China
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26
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Matsuzaki H, Takeda N, Yasui M, Ito Y, Konishi K, Ueda M. Synthesis of Pyrazoles Utilizing the Ambiphilic Reactivity of Hydrazones. Org Lett 2020; 22:9249-9252. [PMID: 33196204 DOI: 10.1021/acs.orglett.0c03465] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A Brønsted acid-mediated synthesis of pyrazoles from conjugated hydrazones through a β-protonation/nucleophilic addition/cyclization/aromatization sequence was developed. This protocol utilizing the ambiphilic reactivity of hydrazones enables not only self-condensation but also cross-condensation, affording multisubstituted pyrazoles in high yields, with a broad substrate scope. This sequential reaction proceeds under mild conditions via a simple operation. Moreover, the method can be applied to the synthesis of a nonsteroidal anti-inflammatory drug, Lonazolac.
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Affiliation(s)
- Haruo Matsuzaki
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Norihiko Takeda
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Motohiro Yasui
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Yuta Ito
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Keiji Konishi
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan
| | - Masafumi Ueda
- Kobe Pharmaceutical University, Motoyamakita, Higashinada, Kobe 658-8558, Japan
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27
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Shang Z, Zhang Z, Weng W, Wang Y, Cheng T, Zhang Q, Song L, Shao T, Liu K, Zhu Y. A Metal‐ and Azide‐free Oxidative Coupling Reaction for the Synthesis of [1,2,3]Triazolo[1,5‐a]quinolines and their Application to Construct C−C and C‐P Bonds, 2‐Cyclopropylquinolines and Imidazo[1,5‐a]quinolines. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202001052] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Zhi‐Hao Shang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Zhen‐Xiao Zhang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Wei‐Zhao Weng
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Yu‐Fei Wang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Tian‐Wei Cheng
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Qiu‐Yi Zhang
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Li‐Qun Song
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Tian‐Qi Shao
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Kai‐Xuan Liu
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
| | - Yan‐Ping Zhu
- School of Pharmacy Key Laboratory of Molecular Pharmacology and Drug Evaluation Ministry of Education Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong Yantai University Shandong Yantai 264005 People's Republic of China
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28
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Microwave-assisted one-pot quick synthesis of 1-monosubstituted 1,2,3-triazoles from arylboronic acids, sodium azide and 3-butyn-2-ols. J CHEM SCI 2020. [DOI: 10.1007/s12039-020-01856-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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29
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Zhang C, Liang Z, Jia X, Wang M, Zhang G, Hu ML. A practical base mediated synthesis of 1,2,4-triazoles enabled by a deamination annulation strategy. Chem Commun (Camb) 2020; 56:14215-14218. [PMID: 33112300 DOI: 10.1039/d0cc05828a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
A rapid and efficient base mediated synthesis of 1,3,5-trisubstituted 1,2,4-triazoles has been developed using the annulation of nitriles with hydrazines, which can be expanded to a wide range of triazoles in good to excellent yields. Ammonia gas is liberated during the reaction, and halo and hetero functional groups as well as free hydroxyl and amino groups are tolerated in this transformation. A variety of alkyl and aryl-substituted nitriles can be functionalized with aromatic and aliphatic hydrazines employing this procedure. This finding provides a practical and useful strategy for the synthesis of various 15N-labeled 1,2,4-triazole derivatives, and two types of mGlu5 receptor pharmaceuticals can be easily assembled in a one-pot manner.
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Affiliation(s)
- Chunyan Zhang
- Key Laboratory of Sensor Analysis of Tumor Marker, Ministry of Education, Shan-dong Key Laboratory of Biochemical Analysis, Key Laboratory of Analytical Chem-istry for Life Science in Universities of Shandong, Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, MOE, College of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China.
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30
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Rafiee F, Khavari P. Preparation of aryl azides of aryl boronic acids and one‐pot synthesis of 1,4‐diaryl‐1,2,3‐triazoles by a magnetic cysteine functionalized GO–Cu
I/II
nanocomposite. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5789] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Fatemeh Rafiee
- Department of Chemistry, Faculty of physic‐chemistryAlzahra University Vanak Tehran Iran
| | - Parvaneh Khavari
- Department of Chemistry, Faculty of physic‐chemistryAlzahra University Vanak Tehran Iran
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31
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Clark PR, Williams GD, Hayes JF, Tomkinson NCO. A Scalable Metal‐, Azide‐, and Halogen‐Free Method for the Preparation of Triazoles. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Peter R. Clark
- Chemical DevelopmentGlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL UK
| | - Glynn D. Williams
- Chemical DevelopmentGlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
| | - Jerome F. Hayes
- Chemical DevelopmentGlaxoSmithKline Gunnels Wood Road Stevenage SG1 2NY UK
| | - Nicholas C. O. Tomkinson
- Department of Pure and Applied ChemistryUniversity of Strathclyde 295 Cathedral Street Glasgow G1 1XL UK
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32
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Clark PR, Williams GD, Hayes JF, Tomkinson NCO. A Scalable Metal-, Azide-, and Halogen-Free Method for the Preparation of Triazoles. Angew Chem Int Ed Engl 2020; 59:6740-6744. [PMID: 31943599 DOI: 10.1002/anie.201915944] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Revised: 01/06/2020] [Indexed: 11/08/2022]
Abstract
A scalable metal-, azide-, and halogen-free method for the synthesis of substituted 1,2,3-triazoles has been developed. The reaction proceeds through a 3-component coupling of α-ketoacetals, tosyl hydrazide, and a primary amine. The reaction shows outstanding functional-group tolerance with respect to both the α-ketoacetal and amine coupling partners, providing access to 4-, 1,4-, 1,5-, and 1,4,5-substituted triazoles in excellent yield. This robust method results in densely functionalised 1,2,3-triazoles that remain challenging to prepare by azide-alkyne cycloaddition (AAC, CuAAC, RuAAC) methods and can be scaled in either batch or flow reactors. Methods for the chemoselective reaction of either aliphatic amines or anilines are also described, revealing some of the potential of this novel and highly versatile transformation.
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Affiliation(s)
- Peter R Clark
- Chemical Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage, SG1 2NY, UK.,Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
| | - Glynn D Williams
- Chemical Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - Jerome F Hayes
- Chemical Development, GlaxoSmithKline, Gunnels Wood Road, Stevenage, SG1 2NY, UK
| | - Nicholas C O Tomkinson
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK
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33
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Wu P, He Y, Wang H, Zhou YG, Yu Z. Copper(II)-Catalyzed C–H Nitrogenation/Annulation Cascade of Ketene N,S-Acetals with Aryldiazonium Salts: A Direct Access to N2-Substituted Triazole and Triazine Derivatives. Org Lett 2019; 22:310-315. [DOI: 10.1021/acs.orglett.9b04335] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Ping Wu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Yuan He
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P.R. China
- University of Chinese Academy of Sciences, Beijing 100049, P.R. China
| | - Hongmei Wang
- State Key Laboratory of NBC Protection for Civilian, Beijing 102205, P.R. China
| | - Yong-Gui Zhou
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P.R. China
| | - Zhengkun Yu
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 457 Zhongshan Road, Dalian 116023, P.R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Road, Shanghai 200032, P.R. China
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34
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Zhang X, Pan Y, Liang P, Ma X, Jiao W, Shao H. An Effective Method for the Synthesis of 1,3‐Dihydro‐2
H
‐indazoles via N‐N Bond Formation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201901331] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Xiaoke Zhang
- Natural Products Research Centre, Chengdu Institute of Biology, ChineseAcademy of Sciences, Chengdu, People's Republic of China
- Zunyi Medical University, 563006 Zunyi, Guizhou People's Republic of China
- University of Chinese Academy of Sciences People's Republic of China
| | - Yang Pan
- Natural Products Research Centre, Chengdu Institute of Biology, ChineseAcademy of Sciences, Chengdu, People's Republic of China
- Zunyi Medical University, 563006 Zunyi, Guizhou People's Republic of China
| | - Peng Liang
- Natural Products Research Centre, Chengdu Institute of Biology, ChineseAcademy of Sciences, Chengdu, People's Republic of China
- Zunyi Medical University, 563006 Zunyi, Guizhou People's Republic of China
| | - Xiaofeng Ma
- Natural Products Research Centre, Chengdu Institute of Biology, ChineseAcademy of Sciences, Chengdu, People's Republic of China
- Zunyi Medical University, 563006 Zunyi, Guizhou People's Republic of China
| | - Wei Jiao
- Natural Products Research Centre, Chengdu Institute of Biology, ChineseAcademy of Sciences, Chengdu, People's Republic of China
| | - Huawu Shao
- Natural Products Research Centre, Chengdu Institute of Biology, ChineseAcademy of Sciences, Chengdu, People's Republic of China
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35
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A one-pot and three-component synthetic approach for the preparation of asymmetric and multi-substituted 1,4-dihydropyrazines. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.151257] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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36
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Shu WM, Zhang XF, Zhang XX, Li M, Wang AJ, Wu AX. Metal-Free Cascade [4 + 1] Cyclization Access to 4-Aryl- NH-1,2,3-triazoles from N-Tosylhydrazones and Sodium Azide. J Org Chem 2019; 84:14919-14925. [PMID: 31612711 DOI: 10.1021/acs.joc.9b02250] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A molecular iodine-mediated coupling cyclization reaction for the synthesis of 4-aryl-NH-1,2,3-triazoles has been developed from N-tosylhydrazones and sodium azide. This metal-free cascade [4 + 1] cyclization reaction could rapidly synthesize valuable compounds via a sequential C-N and N-N bond formation. Mechanistic studies demostrate that the nitrogen atoms of the 1,2,3-triazoles are not entirely from sodium azide.
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Affiliation(s)
- Wen-Ming Shu
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P.R. China
| | - Xun-Fang Zhang
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P.R. China
| | - Xiang-Xiang Zhang
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P.R. China
| | - Min Li
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P.R. China
| | - An-Jing Wang
- College of Chemistry and Environmental Engineering , Yangtze University , Jingzhou 434023 , P.R. China
| | - An-Xin Wu
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry , Central China Normal University , Wuhan 430079 , P.R. China
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37
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Veerakanellore GB, Smith CM, Vasiliu M, Oliver AG, Dixon DA, Carrick JD. Synthesis of 1 H-Pyrazol-5-yl-pyridin-2-yl-[1,2,4]triazinyl Soft-Lewis Basic Complexants via Metal and Oxidant Free [3 + 2] Dipolar Cycloaddition of Terminal Ethynyl Pyridines with Tosylhydrazides. J Org Chem 2019; 84:14558-14570. [PMID: 31647644 DOI: 10.1021/acs.joc.9b02088] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Soft-Lewis basic complexants that facilitate chemoselective separation of the minor actinides from the lanthanides are critical to the closure of the nuclear fuel cycle. Complexants that modulate covalent orbital interactions with relevant metals of interest can facilitate desired outcomes in liquid-liquid separation, allowing for further transmutative processes that decrease issues related with storage of spent nuclear fuel from energy and weapons production. Synthesis of previously unexplored scaffolds seeks to improve performance over benchmark complexants. In the current work, an intermolecular, thermally initiated, and DBU-assisted [3 + 2] cycloaddition of 3-(6-ethynyl-pyridin-2-yl)-5,6-diphenyl-[1,2,4]triazine dipolarophiles with structurally diverse 4-methylbenzenesulfono-hydrazides afforded 21 yet-to-be reported examples in 42-68% yield and modest regioselectivity for the desired regioisomer. Preparation of requisite starting materials, method definition, dipole and dipolarophile scope, ten-fold scale-up reaction, and downstream functional group interconversion are reported herein.
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Affiliation(s)
- Giri Babu Veerakanellore
- Department of Chemistry , Tennessee Technological University , Cookeville , Tennessee 38505-0001 , United States
| | - Caris M Smith
- Department of Chemistry and Biochemistry , The University of Alabama , Tuscaloosa , Alabama 35487-0336 , United States
| | - Monica Vasiliu
- Department of Chemistry and Biochemistry , The University of Alabama , Tuscaloosa , Alabama 35487-0336 , United States
| | - Allen G Oliver
- Department of Chemistry , University of Notre Dame , Notre Dame , Indiana 46556 , United States
| | - David A Dixon
- Department of Chemistry and Biochemistry , The University of Alabama , Tuscaloosa , Alabama 35487-0336 , United States
| | - Jesse D Carrick
- Department of Chemistry , Tennessee Technological University , Cookeville , Tennessee 38505-0001 , United States
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38
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Zhu F, Yan Z, Ai C, Wang Y, Lin S. I2
Promoted Synthesis of 2-Aminothiadiazoles Employing KSCN as a Sulfur Source Under Metal-Free Conditions. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901250] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fuyuan Zhu
- College of Chemistry; Nanchang University; 999 Xuefu Dadao 330031 Nanchang Jiangxi Province P. R. China
| | - Zhaohua Yan
- College of Chemistry; Nanchang University; 999 Xuefu Dadao 330031 Nanchang Jiangxi Province P. R. China
| | - Chengmei Ai
- College of Chemistry; Nanchang University; 999 Xuefu Dadao 330031 Nanchang Jiangxi Province P. R. China
| | - Yanmei Wang
- College of Chemistry; Nanchang University; 999 Xuefu Dadao 330031 Nanchang Jiangxi Province P. R. China
| | - Sen Lin
- College of Chemistry; Nanchang University; 999 Xuefu Dadao 330031 Nanchang Jiangxi Province P. R. China
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39
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Zhu C, Zeng H, Chen F, Liu C, Jiang H. Copper‐Catalyzed Cyclization of Aryl Amines and Aryldiazonium Salts under Air: Access to
N
‐2‐Aryl‐Naphthotriazoles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900981] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Chuanle Zhu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 People's Republic of China
| | - Hao Zeng
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 People's Republic of China
| | - Fulin Chen
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 People's Republic of China
| | - Chi Liu
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 People's Republic of China
| | - Huanfeng Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical EngineeringSouth China University of Technology Guangzhou 510640 People's Republic of China
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40
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Bao P, Yue H, Meng N, Zhao X, Li J, Wei W. Copper-Catalyzed Three-Component Reaction of Alkynes, TMSN3, and Ethers: Regiocontrollable Synthesis of N1- and N2-Oxyalkylated 1,2,3-Triazoles. Org Lett 2019; 21:7218-7222. [DOI: 10.1021/acs.orglett.9b02295] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Pengli Bao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai 810008, China
| | - Na Meng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
| | - Xiaohui Zhao
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai 810008, China
| | - Jiangsheng Li
- School of Chemistry and Food Engineering, Changsha University of Science and Technology, Changsha 410114, China
| | - Wei Wei
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165 Shandong, China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Qinghai 810008, China
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41
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Mani GS, Donthiboina K, Shaik SP, Shankaraiah N, Kamal A. Iodine-mediated C-N and N-N bond formation: a facile one-pot synthetic approach to 1,2,3-triazoles under metal-free and azide-free conditions. RSC Adv 2019; 9:27021-27031. [PMID: 35528599 PMCID: PMC9070426 DOI: 10.1039/c9ra06005g] [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: 08/02/2019] [Accepted: 08/21/2019] [Indexed: 01/01/2023] Open
Abstract
A novel strategy towards the synthesis of 1,4-disubstituted 1,2,3-triazoles via C–N and N–N bond formation has been demonstrated under transition metal-free and azide-free conditions. These 1,2,3-triazoles were obtained in a regioselective manner from commercially available anilines, aryl alkenes/aryl alkynes and N-tosylhydrazines using I2 under O2 atmosphere. Broad substrate scope, milder reaction conditions, good to moderate yields and clean protocol are the notable features of the method. Moreover, this protocol is amenable for the generation of a library of medicinally important key building blocks. A novel strategy towards the synthesis of 1,4-disubstituted 1,2,3-triazoles via C–N and N–N bond formation has been demonstrated under transition metal-free and azide-free conditions.![]()
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Affiliation(s)
- Geeta Sai Mani
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Kavitha Donthiboina
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Siddiq Pasha Shaik
- Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India
| | - Nagula Shankaraiah
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India
| | - Ahmed Kamal
- Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research (NIPER) Hyderabad 500037 India .,Medicinal Chemistry and Pharmacology, CSIR-Indian Institute of Chemical Technology Hyderabad 500007 India .,School of Pharmaceutical Education and Research (SPER) Jamia Hamdard New Delhi 110062 India
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42
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Lv N, Chen Z, Liu Z, Zhang Y. Redox-Neutral Rhodium(III)-Catalyzed Annulation of Arylhydrazines with Sulfoxonium Ylides To Synthesize 2-Arylindoles. J Org Chem 2019; 84:13013-13021. [DOI: 10.1021/acs.joc.9b01815] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ningning Lv
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhengkai Chen
- Department of Chemistry, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Zhanxiang Liu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Yuhong Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Lanzhou 730000, China
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43
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Xie Z, Chen R, Ma M, Kong L, Liu J, Wang C. Copper‐catalyzed one‐pot coupling reactions of aldehydes (ketones), tosylhydrazide and 2‐amino(benzo)thiazoles: An efficient strategy for the synthesis of
N
‐alkylated (benzo)thiazoles. Appl Organomet Chem 2019. [DOI: 10.1002/aoc.5124] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Zengyang Xie
- Laboratory of New Antitumor Drug Molecular Design & Synthesis, College of Basic MedicineJining Medical University Jining 272067 China
| | - Ruijiao Chen
- Laboratory of New Antitumor Drug Molecular Design & Synthesis, College of Basic MedicineJining Medical University Jining 272067 China
| | - Mingfang Ma
- Laboratory of New Antitumor Drug Molecular Design & Synthesis, College of Basic MedicineJining Medical University Jining 272067 China
| | - Lingdong Kong
- Laboratory of New Antitumor Drug Molecular Design & Synthesis, College of Basic MedicineJining Medical University Jining 272067 China
| | - Jun Liu
- Laboratory of New Antitumor Drug Molecular Design & Synthesis, College of Basic MedicineJining Medical University Jining 272067 China
| | - Cunde Wang
- School of Chemistry and Chemical EngineeringYangzhou University Yangzhou 225002 China
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44
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Yan Z, Li Y, Ma M. Solvent-Directed Click Reaction between Active Methylene Compounds and Azido-1,3,5-triazines. Org Lett 2019; 21:7204-7208. [DOI: 10.1021/acs.orglett.9b02089] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ziqiang Yan
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Yuanheng Li
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - Mingming Ma
- CAS Key Laboratory of Soft Matter Chemistry, Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
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45
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Zhang Y, Duan D, Zhong Y, Guo XA, Guo J, Gou J, Gao Z, Yu B. Fe(III)-Catalyzed Aerobic Intramolecular N–N Coupling of Aliphatic Azides with Amines. Org Lett 2019; 21:4960-4965. [DOI: 10.1021/acs.orglett.9b01396] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Yue Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Dongyu Duan
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Ying Zhong
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Xin-Ai Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jiawei Guo
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Jing Gou
- Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Normal University, Xi’an 710062, China
| | - Ziwei Gao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
| | - Binxun Yu
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi’an 710062, China
- Key Laboratory of Medicinal Resources and Natural Pharmaceutical Chemistry, Ministry of Education, College of Life Science, Shaanxi Normal University, Xi’an 710062, China
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46
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Autade SB, Akamanchi KG. Sulfated tungstate a heterogeneous acid catalyst for synthesis of 4-aryl-NH-1,2,3-triazoles by 1,3-dipolar cycloaddition of nitroolefins with NaN3. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1612919] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Snehalata B. Autade
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, MH, India
| | - Krishnacharya G. Akamanchi
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Mumbai, MH, India
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47
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Hu S, Du S, Yang Z, Ni L, Chen Z. Synthesis of Multi‐substituted Dihydropyrazoles by Copper‐Mediated [4+1] Cycloaddition Reaction of
N
‐Sulfonylhydrazones and Sulfoxonium Ylides. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900212] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sipei Hu
- Department of ChemistryZhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Shiying Du
- Department of ChemistryZhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Zuguang Yang
- Department of ChemistryZhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Lingfang Ni
- Department of ChemistryZhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
| | - Zhengkai Chen
- Department of ChemistryZhejiang Sci-Tech University Hangzhou 310018 People's Republic of China
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48
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Zhang X, Rakesh KP, Qin HL. Transition-metal-free regioselective construction of 1,5-diaryl-1,2,3-triazoles through dehydrative cycloaddition of alcohols with aryl azides mediated by SO 2F 2. Chem Commun (Camb) 2019; 55:2845-2848. [PMID: 30768105 DOI: 10.1039/c8cc09693g] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A novel, simple and practical method for mild, efficient, cost-effective and regioselective synthesis of highly valuable 1,5-diaryl-1,2,3-triazoles was achieved through dehydrative annulation of readily available alcohols with aryl azides. The reaction proceeded at room temperature, without any metal catalysts, exhibiting excellent compatibility to a large variety of functional groups (>50 examples), resulting in up to quantitative yields.
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Affiliation(s)
- Xu Zhang
- State Key Laboratory of Silicate Materials for Architectures, School of Chemistry, Chemical Engineering and Life Science Wuhan University of Technology, Wuhan 430070, China.
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49
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Bao P, Meng N, Lv Y, Yue H, Li JS, Wei W. Selective assembly of N1- and N2-alkylated 1,2,3-triazoles via copper-catalyzed decarboxylative cycloaddition of alkynyl carboxylic acids with ethers and azidotrimethylsilane. Org Chem Front 2019. [DOI: 10.1039/c9qo01277j] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An efficient and regiocontrolled method for the synthesis of various N1- and N2 alkylated 1,2,3-triazoles via copper-catalyzed decarboxylative cycloaddition of alkynyl carboxylic acids with ethers and azidotrimethylsilane.
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Affiliation(s)
- Pengli Bao
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Na Meng
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Yufen Lv
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
| | - Huilan Yue
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research
- Northwest Institute of Plateau Biology
- Chinese Academy of Sciences
- Qinghai 810008
- China
| | - Jiang-Sheng Li
- School of Chemistry and food Engineering
- Changsha University of Science and Technology
- Changsha
- China
| | - Wei Wei
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu 273165
- China
- Qinghai Provincial Key Laboratory of Tibetan Medicine Research and Key Laboratory of Tibetan Medicine Research
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50
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Xie Z, Song Y, Xu L, Guo Y, Zhang M, Li L, Chen K, Liu X. Rapid Synthesis of N-Tosylhydrazones under Solvent-Free Conditions and Their Potential Application Against Human Triple-Negative Breast Cancer. ChemistryOpen 2018; 7:977-983. [PMID: 30524923 PMCID: PMC6276103 DOI: 10.1002/open.201800206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2018] [Indexed: 11/08/2022] Open
Abstract
Some N-tosylhydrazone derivatives were effectively synthesized under solvent-free conditions by using a grinding method at room temperature. The short reaction time, clean and mild process with simple workup and easy purification of the target compounds were salient features of the present protocol, which enables straightforward access to N-tosylhydrazones. Among the tosylhydrazone derivatives evaluated, compound 3 l exhibits excellent apoptosis-promoting and anticancer potential against triple-negative breast cancer (TNBC) cell lines. This research shows that our synthesized compound 3 l may be a desirable and effective therapeutic drug against TNBC.
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Affiliation(s)
- Zengyang Xie
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Yuying Song
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Lujia Xu
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Yukun Guo
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Min Zhang
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Limei Li
- College of Basic Medicine Jining Medical University Jining 272067 China
| | - Kai Chen
- Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics, and Gene Regulation, Sun Yat-Sen Memorial Hospital Sun Yat-Sen University Guangzhou 510275 China.,Breast Tumor Center, Sun Yat-sen Memorial Hospital Sun Yat-Sen University Guangzhou 510275 China
| | - Xue Liu
- College of Basic Medicine Jining Medical University Jining 272067 China
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