1
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Yue Y, Guo X, Zhang J, Zhang Z, Zhang Y, Tang Q, Bai R, Yi H, Liu J. Electrochemical Oxidation Enables Radical Dearomative Spiroannulation to 2H-Spiro[benzofuran-3,9'-fluoren]-2-one. Chemistry 2024; 30:e202401303. [PMID: 38794842 DOI: 10.1002/chem.202401303] [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: 04/02/2024] [Revised: 05/19/2024] [Accepted: 05/20/2024] [Indexed: 05/26/2024]
Abstract
Developing pragmatic strategies for accessing functional benzofuran-2-ones from 3-([1,1'-biphenyl]-2-yl)benzofuran remains an enduring challenge. Herein, we have achieved a highly discriminating electrochemical oxidative dearomative spiroannulation of 3-([1,1'-biphenyl]-2-yl)benzofuran, culminating in the synthesis of 2H-spiro[benzofuran-3,9'-fluoren]-2-one derivatives. By harnessing the electrophilic intermediates of benzofuryl radical cations supported by DFT calculations, we attain exceptional regioselectivity while eliminating the need for stoichiometric oxidants. Mechanistic investigations reveal a sequence of events involving the benzofuran radical cation, encompassing the capture of H2O, nucleophilic arene attack, and subsequent deprotonation, ultimately yielding the final benzofuran-2-ones.
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Affiliation(s)
- Yuanyuan Yue
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Xiaohui Guo
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Jianhang Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Zhiqiang Zhang
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Yilin Zhang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Qinghu Tang
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
| | - Ruopeng Bai
- School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Theoretical and Computational Chemistry, Chongqing University, Chongqing, 401331, P. R. China
| | - Hong Yi
- The Institute for Advanced Studies (IAS), Wuhan University, Wuhan, 430072, Hubei, P. R. China
| | - Jianming Liu
- Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, P.R. China
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2
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Carson MC, Kozlowski MC. Recent advances in oxidative phenol coupling for the total synthesis of natural products. Nat Prod Rep 2024; 41:208-227. [PMID: 37294301 PMCID: PMC10709532 DOI: 10.1039/d3np00009e] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Covering: 2008 to 2023This review will describe oxidative phenol coupling as applied in the total synthesis of natural products. This review covers catalytic and electrochemical methods with a brief comparison to stoichiometric and enzymatic systems assessing their practicality, atom economy, and other measures. Natural products forged by C-C and C-O oxidative phenol couplings as well as from alkenyl phenol couplings will be addressed. Additionally, exploration into catalytic oxidative coupling of phenols and other related species (carbazoles, indoles, aryl ethers, etc.) will be surveyed. Future directions of this particular area of research will also be assessed.
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Affiliation(s)
- Matthew C Carson
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.
| | - Marisa C Kozlowski
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104-6323, USA.
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3
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Hao MY, Zhang Y, Lin N, Fu R, Ji XS, Jiang B, Tu SJ, Hao WJ. Gold self-relay catalysis enabling annulative oxygenation of propargylic alcohols with O-nucleophiles. Chem Commun (Camb) 2023; 59:4032-4035. [PMID: 36924136 DOI: 10.1039/d3cc00089c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2023]
Abstract
A new gold(I) self-relay catalysis reaction enabling the annulative oxygenation of propargylic alcohols with various O-nucleophiles, such as carboxylic acids, alcohols and TBHP, is reported, producing a series of functionalized benzofurans in moderate to good yields under mild conditions. This protocol benefits from the π- and σ-Lewis acid capability of gold complexes, demonstrating high molecular convergence, broad substrate flexibility, high functional group compatibility and mild conditions.
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Affiliation(s)
- Meng-Ying Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China. .,School of Pharmacy, Zhengzhou Vocational College of Medicine and Health, Zhengzhou 452385, P. R. China
| | - Yin Zhang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Na Lin
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Rong Fu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Xiao-Shuang Ji
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, P. R. China.
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4
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Wu J, Kozlowski MC. Catalytic Oxidative Coupling of Phenols and Related Compounds. ACS Catal 2022; 12:6532-6549. [DOI: 10.1021/acscatal.2c00318] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Jingze Wu
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Marisa C. Kozlowski
- Department of Chemistry, Roy and Diana Vagelos Laboratories, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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5
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DBU-promoted synthesis of novel heterocyclic [4.3.3] propellanes from α‑cyanoketones and cyclic α-diketones. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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6
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Chen F, Zheng Y, Yang H, Yang Q, Wu L, Zhou N. Iron‐Catalyzed Silylation and Spirocyclization of Biaryl‐Ynones: A Radical Cascade Process toward Silylated Spiro[5.5]trienones. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Fei Chen
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Yang Zheng
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Hao Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Qing‐Yun Yang
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Lu‐Yan Wu
- Henan Provincial Engineering and Technology Research Center for Precise Synthesis of Fluorine-Containing Drugs Anyang Key Laboratory of New Functional Complex Materials College of Chemistry and Chemical Engineering Anyang Normal University Anyang 455000 People's Republic of China
| | - Nengneng Zhou
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education Anhui Key Laboratory of Molecule-Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241000 People's Republic of China
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7
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Vala MK, Sudhakar C, Adurthi S, Vanam S. The synthesis of phenyl carbamates catalyzed by iron (II) bromide: An oxidative approach for cross-coupling of phenols with formamides. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.2017459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Manoj Kumar Vala
- Department of Chemistry, GITAM Deemed to be University, Rudraram, Hyderabad, India
- Department of Chemistry, TARA Govt Degree College, Sangareddy, India
| | - Chithaluri Sudhakar
- Department of Chemistry, GITAM Deemed to be University, Rudraram, Hyderabad, India
| | - Suryakumari Adurthi
- Department of Chemistry, GITAM Deemed to be University, Rudraram, Hyderabad, India
- Department of Chemistry, TARA Govt Degree College, Sangareddy, India
| | - Shekhar Vanam
- Department of Chemistry, KRR Govt Degree College, Kodad, Telangana, India
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8
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Youn SW, Cho CG. Transition-metal-catalyzed ortho-selective C-H functionalization reactions of free phenols. Org Biomol Chem 2021; 19:5028-5047. [PMID: 34027964 DOI: 10.1039/d1ob00506e] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Phenols are important readily available chemical feedstocks and versatile synthetic building blocks for diverse synthetic transformations. Their motifs are prevalent in a diverse array of natural products, pharmaceuticals, functional materials, and privileged chiral ligands. Consequently, the development of facile and direct site-selective C-H bond functionalization of free phenols is of great importance and considerable interest to both industry and academic research. Over the past decades, transition-metal-catalyzed C-H bond functionalization has become as a powerful synthetic tool in organic synthesis. In this review, we provide a brief overview of recent progress in the transition-metal-catalyzed direct ortho-selective C-H functionalization of free phenols.
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Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
| | - Cheon-Gyu Cho
- Center for New Directions in Organic Synthesis, Department of Chemistry and Research Institute for Natural Sciences, Hanyang University, Seoul 04763, Korea.
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9
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Sako M, Higashida K, Kamble GT, Kaut K, Kumar A, Hirose Y, Zhou DY, Suzuki T, Rueping M, Maegawa T, Takizawa S, Sasai H. Chemo- and enantioselective hetero-coupling of hydroxycarbazoles catalyzed by a chiral vanadium( v) complex. Org Chem Front 2021. [DOI: 10.1039/d1qo00783a] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The catalytic enantioselective oxidative hetero-coupling of arenols using a chiral vanadium(v) complex has been developed.
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Affiliation(s)
- Makoto Sako
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Keigo Higashida
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Ganesh Tatya Kamble
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Kevin Kaut
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
| | - Ankit Kumar
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Yuka Hirose
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
- School of Pharmaceutical Sciences, Kindai University, Higashi-Osaka, Osaka 577-8502, Japan
| | - Da-Yang Zhou
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Takeyuki Suzuki
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Magnus Rueping
- Institute of Organic Chemistry, RWTH Aachen University, Landoltweg 1, 52074 Aachen, Germany
- Catalysis Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia
| | - Tomohiro Maegawa
- School of Pharmaceutical Sciences, Kindai University, Higashi-Osaka, Osaka 577-8502, Japan
| | - Shinobu Takizawa
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
| | - Hiroaki Sasai
- SANKEN (The Institute of Scientific and Industrial Research), Osaka University, Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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10
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Vershinin V, Forkosh H, Ben-Lulu M, Libman A, Pappo D. Mechanistic Insights into the FeCl 3-Catalyzed Oxidative Cross-Coupling of Phenols with 2-Aminonaphthalenes. J Org Chem 2021; 86:79-90. [PMID: 33296193 PMCID: PMC7783733 DOI: 10.1021/acs.joc.0c00874] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The selective FeCl3-catalyzed oxidative cross-coupling reaction between phenols and primary, secondary, and tertiary 2-aminonaphthalene derivatives was investigated. The generality of this scalable method provides a sustainable alternative for preparing N,O-biaryl compounds that are widely used as ligands and catalysts. Based on a comprehensive kinetic investigation, a catalytic cycle involving a ternary complex that binds to both the coupling partners and the oxidant during the key oxidative coupling step is postulated. Furthermore, the studies showed that the reaction is regulated by off-cycle acid-base and ligand exchange processes.
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Affiliation(s)
- Vlada Vershinin
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Hagit Forkosh
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Mor Ben-Lulu
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Libman
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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11
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Sugawara M, Ohnishi R, Ezawa T, Akakabe M, Sawamura M, Hojo D, Hashizume D, Sohtome Y, Sodeoka M. Regiodivergent Oxidative Cross-Coupling of Catechols with Persistent tert-Carbon Radicals. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03986] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Masumi Sugawara
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Rikako Ohnishi
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
| | - Tetsuya Ezawa
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mai Akakabe
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Miki Sawamura
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daiki Hojo
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Daisuke Hashizume
- RIKEN Center for Emergent Matter Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yoshihiro Sohtome
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Mikiko Sodeoka
- Synthetic Organic Chemistry Laboratory, RIKEN Cluster for Pioneering Research, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
- Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan
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12
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Liu S, Ma D, Zhu X, Luo C, Tan H, Ju X, Tan X, Tang X, Huang J, Wang J, Wang X, Cui H. Iron Catalyzed [3+2] Cycloaddition of Tetrahydroisoquinoline: Synthesis of Dihydropyrrolo[2,1‐
a
]isoquinolines. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Si‐Wei Liu
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
- Tonichem Pharmaceutical Technology Co., Ltd Huizhou 516008 P. R. China
| | - Dan‐Dan Ma
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xin‐Xin Zhu
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Cheng‐Dan Luo
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Hui‐Lin Tan
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xiao‐Li Ju
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xue Tan
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xiao‐Hui Tang
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Jie Huang
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Jia Wang
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
| | - Xian‐Xun Wang
- Tonichem Pharmaceutical Technology Co., Ltd Huizhou 516008 P. R. China
| | - Hai‐Lei Cui
- Laboratory of Asymmetric Synthesis Chongqing University of Arts and Sciences 319 Honghe Ave. Yongchuan, Chongqing 402160 P. R. China
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13
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Dyachenko VD, Sukach SM, Morkovnik AS. 2-Acylcycloalkanones in Organic Synthesis. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2020. [DOI: 10.1134/s1070428020060019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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14
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Diastereoselective [3 + 3] cycloaddition reaction of 2-arylideneindan-1,3-diones with β-naphthols: Efficient assemble of immunosuppressive pentacyclic chromanes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151579] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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15
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Shalit H, Dyadyuk A, Pappo D. Selective Oxidative Phenol Coupling by Iron Catalysis. J Org Chem 2019; 84:1677-1686. [DOI: 10.1021/acs.joc.8b03084] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hadas Shalit
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Alina Dyadyuk
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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16
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Xu K, Liu H, Hou Y, Shen J, Liu D, Zhang W. A Pd-catalyzed asymmetric allylic substitution cascade via an asymmetric desymmetrization for the synthesis of bicyclic dihydrofurans. Chem Commun (Camb) 2019; 55:13295-13298. [DOI: 10.1039/c9cc07204g] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Chiral bicyclic dihydrofurans bearing two vicinal carbon stereocenters have been synthesized in high yields and with up to 97% ee via a Pd-catalyzed asymmetric allylic substitution cascade and an asymmetric desymmetrization process.
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Affiliation(s)
- Kai Xu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Pharmacy
- Shanghai Jiao Tong University
- 800 Dongchuan Road
- Shanghai 200240
| | - Hao Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Pharmacy
- Shanghai Jiao Tong University
- 800 Dongchuan Road
- Shanghai 200240
| | - Yilin Hou
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Pharmacy
- Shanghai Jiao Tong University
- 800 Dongchuan Road
- Shanghai 200240
| | - Jiefeng Shen
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Pharmacy
- Shanghai Jiao Tong University
- 800 Dongchuan Road
- Shanghai 200240
| | - Delong Liu
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Pharmacy
- Shanghai Jiao Tong University
- 800 Dongchuan Road
- Shanghai 200240
| | - Wanbin Zhang
- Shanghai Key Laboratory for Molecular Engineering of Chiral Drugs
- School of Pharmacy
- Shanghai Jiao Tong University
- 800 Dongchuan Road
- Shanghai 200240
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17
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Sha Q, Liu H. De novo synthesis of benzofurans via trifluoroacetic acid catalyzed cyclization/oxidative aromatization cascade reaction of 2-hydroxy-1,4-diones. Org Biomol Chem 2019; 17:7547-7551. [DOI: 10.1039/c9ob01422e] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A simple metal-free cyclization/oxidative aromatization reaction starting from 2-hydroxy-1,4-diones for the de novo synthesis of benzofurans was developed.
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Affiliation(s)
- Qiang Sha
- Jiangsu Key Laboratory of Pesticide Science and Department of Chemistry
- College of Sciences
- Nanjing Agricultural University
- Nanjing 210095
- P. R. China
| | - Haixuan Liu
- Sanhome R&D Centre
- Nanjing Sanhome Pharmaceutical Co
- Ltd
- Nanjing 211135
- P. R. China
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18
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Affiliation(s)
- Zheng Huang
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
| | - Jean-Philip Lumb
- Department of Chemistry, McGill University, 801 Sherbrooke Street West, Montreal, QC H3A 0B8, Canada
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19
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Zheng Y, Song W, Zhu Y, Wei B, Xuan L. Total synthesis of lithospermic acid using Fe-catalyzed Cross-Dehydrogenative-Coupling reaction and Pd-catalyzed ester-directed C H olefination. Tetrahedron 2018. [DOI: 10.1016/j.tet.2018.08.028] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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20
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Ni Y, Yu Q, Liu Q, Zuo H, Yu HB, Wei WJ, Liao RZ, Zhong F. Iron-Catalyzed Regiospecific Intermolecular Radical Cyclization of Anilines: Strategy for Assembly of 2,2-Disubstituted Indolines. Org Lett 2018; 20:1404-1408. [DOI: 10.1021/acs.orglett.8b00176] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Yang Ni
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Qile Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Qihao Liu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Honghua Zuo
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Huai-Bin Yu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Wen-Jie Wei
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Rong-Zhen Liao
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
| | - Fangrui Zhong
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology (HUST), 1037 Luoyu Road, Wuhan 430074, China
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21
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Zhang Z, Li C, Wang SH, Zhang FM, Han X, Tu YQ, Zhang XM. Tandem S N2' nucleophilic substitution/oxidative radical cyclization of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds. Org Biomol Chem 2018; 15:3239-3247. [PMID: 28332678 DOI: 10.1039/c7ob00620a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
A novel and efficient tandem SN2' nucleophilic substitution/oxidative radical cyclization reaction of aryl substituted allylic alcohols with 1,3-dicarbonyl compounds has been developed by using Mn(OAc)3 as an oxidant, which enables the expeditious synthesis of polysubstituted dihydrofuran (DHF) derivatives in moderate to high yields. The use of weakly acidic hexafluoroisopropanol (HFIP) as the solvent rather than AcOH has successfully improved the yields and expanded the substrate scope of this type of radical cyclization reactions. Mechanistic studies confirmed the cascade reaction process involving a final radical cyclization.
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Affiliation(s)
- Zhen Zhang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, P. R. China
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22
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Chang MY, Hsiao YT. H 2SO 4-Mediated Stereocontrolled Annulation of Oxygenated Naphthalenes and 4-Alkenols: One-Pot Synthesis of Tetanthrenes. J Org Chem 2017; 82:11594-11602. [PMID: 28933849 DOI: 10.1021/acs.joc.7b02291] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
H2SO4-mediated one-pot stereocontrolled (4 + 2) annulation of 4-alkenols and oxygenated naphthalenes provided tetanthrenes in CH2Cl2 at 25 °C for 10 h. The use of various Brønsted acids or Lewis acids was investigated for a facile and efficient transformation. A plausible mechanism has been proposed.
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Affiliation(s)
- Meng-Yang Chang
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
| | - Yu-Ting Hsiao
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University Hospital, Kaohsiung Medical University , Kaohsiung 807, Taiwan
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23
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24
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Narute S, Pappo D. Iron Phosphate Catalyzed Asymmetric Cross-Dehydrogenative Coupling of 2-Naphthols with β-Ketoesters. Org Lett 2017; 19:2917-2920. [DOI: 10.1021/acs.orglett.7b01152] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Sachin Narute
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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25
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Batra A, Singh P, Singh KN. Recent Advances in Functionalization of α-C(sp3)-H Centres in Inactivated Ethers through Cross Dehydrogenative Coupling. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700341] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Aanchal Batra
- Department of Chemistry; DAV College; Sec 10-D Chandigarh India
| | - Paramjit Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; 160014 Chandigarh India
| | - Kamal Nain Singh
- Department of Chemistry and Centre of Advanced Studies in Chemistry; Panjab University; 160014 Chandigarh India
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26
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Rehan M, Nallagonda R, Das BG, Meena T, Ghorai P. Synthesis of Functionalized Benzo[b]furans via Oxidative Cyclization of o-Cinnamyl Phenols. J Org Chem 2017; 82:3411-3424. [PMID: 28249386 DOI: 10.1021/acs.joc.6b02752] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Disclosed herein is an efficient synthetic route for the synthesis of functionalized 2-benzyl benzo[b]furans via a regioselective 5-exo-trig intramolecular oxidative cyclization of ortho-cinnamyl phenols using [PdCl2(CH3CN)2] as catalyst and benzoquinone as an oxidant. Further, a sequential ortho-cinnamylation of phenols using cinnamyl alcohols catalyzed by Re2O7, followed by an oxidative cyclization using the above Pd catalyst, is performed. The reaction showed broad substrate scope with good to excellent yields.
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Affiliation(s)
- Mohammad Rehan
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Rajender Nallagonda
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Braja Gopal Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Tannu Meena
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
| | - Prasanta Ghorai
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhauri, Bhopal-462066, India
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27
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Xiao BX, Du W, Chen YC. Asymmetric Dearomatizative Diels-Alder Reaction for the Construction of Hydrodibenzo[b,d]furan Frameworks with Tetrasubstituted Stereogenic Centers. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201601207] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Ben-Xian Xiao
- Department of Medicinal Chemistry, West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| | - Wei Du
- Department of Medicinal Chemistry, West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
| | - Ying-Chun Chen
- Department of Medicinal Chemistry, West China School of Pharmacy; Sichuan University; Chengdu 610041 People's Republic of China
- College of Pharmacy; Third Military Medical University; Chongqing 400038 People's Republic of China
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28
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Naveen T, Deb A, Maiti D. Copper/P(t
Bu)3
-Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609401] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Togati Naveen
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Arghya Deb
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
| | - Debabrata Maiti
- Department of Chemistry; Indian Institute of Technology Bombay; Powai Mumbai 400076 India
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29
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Naveen T, Deb A, Maiti D. Copper/P(tBu) 3 -Mediated Regiospecific Synthesis of Fused Furans and Naphthofurans. Angew Chem Int Ed Engl 2016; 56:1111-1115. [PMID: 27996192 DOI: 10.1002/anie.201609401] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2016] [Indexed: 01/12/2023]
Abstract
A novel [3+2] cycloaddition between a variety of cyclic ketones and diverse olefins or alkynes can be effectively promoted by copper in combination with the tri-tert-butylphosphine [P(tBu)3 ] ligand. This protocol exhibits excellent selectivity and provides an exemplary set of fused heterocycles in good to excellent yields. Present strategy also represents an extremely simple and atom-economic way to construct substituted fused furans and naphthofurans from readily available starting materials under mild reaction conditions. The utility of the method is further demonstrated by the synthesis of chiral furans from (R)-(-)-carvone and (S)-(+)-carvone. A plausible mechanism involving the oxidative radical cyclization has been suggested based on experimental observations.
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Affiliation(s)
- Togati Naveen
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Arghya Deb
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai, 400076, India
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30
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Affiliation(s)
- Miaoshen Su
- Hebei Key Laboratory of Bioinorganic Chemistry, College of Sciences; Agricultural University of Hebei; Baoding 071001 China
| | - Cheng Li
- Hebei Key Laboratory of Bioinorganic Chemistry, College of Sciences; Agricultural University of Hebei; Baoding 071001 China
| | - Jingjun Ma
- Hebei Key Laboratory of Bioinorganic Chemistry, College of Sciences; Agricultural University of Hebei; Baoding 071001 China
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31
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Chen T, Li YF, An Y, Zhang FM. Iron-Catalyzed α-Arylation of Deoxybenzoins with Arenes through an Oxidative Dehydrogenative Approach. Org Lett 2016; 18:4754-7. [DOI: 10.1021/acs.orglett.6b02516] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tao Chen
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yi-Fan Li
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Yang An
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
| | - Fu-Min Zhang
- State Key Laboratory of Applied
Organic Chemistry and Department of Chemistry, Lanzhou University, Lanzhou 730000, P. R. China
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32
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Li K, You J. Cascade Oxidative Coupling/Cyclization: A Gateway to 3-Amino Polysubstituted Five-Membered Heterocycles. J Org Chem 2016; 81:2327-39. [PMID: 26914339 DOI: 10.1021/acs.joc.5b02838] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Kaizhi Li
- Key Laboratory
of Green Chemistry
and Technology of Ministry of Education, College of Chemistry, and
State Key Laboratory of Biotherapy, West China Hospital, West China
Medical School, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Jingsong You
- Key Laboratory
of Green Chemistry
and Technology of Ministry of Education, College of Chemistry, and
State Key Laboratory of Biotherapy, West China Hospital, West China
Medical School, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
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33
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Libman A, Shalit H, Vainer Y, Narute S, Kozuch S, Pappo D. Synthetic and Predictive Approach to Unsymmetrical Biphenols by Iron-Catalyzed Chelated Radical–Anion Oxidative Coupling. J Am Chem Soc 2015; 137:11453-60. [DOI: 10.1021/jacs.5b06494] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Anna Libman
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Hadas Shalit
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yulia Vainer
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Sachin Narute
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Sebastian Kozuch
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Doron Pappo
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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34
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Zhu KQ, Wang L, Chen Q, He MY. Iron-catalyzed oxidative dehydrogenative coupling of ethers with aryl tetrazoles. Tetrahedron Lett 2015. [DOI: 10.1016/j.tetlet.2015.06.091] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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35
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Affiliation(s)
- Ingmar Bauer
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
| | - Hans-Joachim Knölker
- Department Chemie, Technische Universität Dresden, Bergstraße 66, 01069 Dresden, Germany
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36
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Gaster E, Vainer Y, Regev A, Narute S, Sudheendran K, Werbeloff A, Shalit H, Pappo D. Significant Enhancement in the Efficiency and Selectivity of Iron-Catalyzed Oxidative Cross-Coupling of Phenols by Fluoroalcohols. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201409694] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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37
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Gaster E, Vainer Y, Regev A, Narute S, Sudheendran K, Werbeloff A, Shalit H, Pappo D. Significant Enhancement in the Efficiency and Selectivity of Iron-Catalyzed Oxidative Cross-Coupling of Phenols by Fluoroalcohols. Angew Chem Int Ed Engl 2015; 54:4198-202. [DOI: 10.1002/anie.201409694] [Citation(s) in RCA: 109] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Revised: 11/18/2014] [Indexed: 01/09/2023]
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38
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Deng T, Wang H, Cai C. Copper-Catalyzed Asymmetric Oxidative Cross-Coupling of 2-Naphthols with Aryl Methyl Ketones. European J Org Chem 2015. [DOI: 10.1002/ejoc.201403512] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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39
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Fuentes N, Kong W, Fernández-Sánchez L, Merino E, Nevado C. Cyclization Cascades via N-Amidyl Radicals toward Highly Functionalized Heterocyclic Scaffolds. J Am Chem Soc 2015; 137:964-73. [DOI: 10.1021/ja5115858] [Citation(s) in RCA: 315] [Impact Index Per Article: 35.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Noelia Fuentes
- Department of Chemistry, University of Zürich, Winterthurerstrasse
190, 8057 Zürich, Switzerland
| | - Wangqing Kong
- Department of Chemistry, University of Zürich, Winterthurerstrasse
190, 8057 Zürich, Switzerland
| | - Luis Fernández-Sánchez
- Department of Chemistry, University of Zürich, Winterthurerstrasse
190, 8057 Zürich, Switzerland
| | - Estíbaliz Merino
- Department of Chemistry, University of Zürich, Winterthurerstrasse
190, 8057 Zürich, Switzerland
| | - Cristina Nevado
- Department of Chemistry, University of Zürich, Winterthurerstrasse
190, 8057 Zürich, Switzerland
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40
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41
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Synthesis of functionalized carbamates and quinones via sequential oxidation of salicylaldehydes using TBHP as the oxidant. Tetrahedron Lett 2014. [DOI: 10.1016/j.tetlet.2014.09.080] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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42
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Wang M, Zhang Z, Liu S, Xie F, Zhang W. Enantioselective Black rearrangement catalyzed by chiral bicyclic imidazole. Chem Commun (Camb) 2014; 50:1227-30. [PMID: 24336514 DOI: 10.1039/c3cc47455k] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A newly developed chiral imidazole nucleophilic catalyst, , was readily prepared and successfully applied to the enantioselective Black rearrangement with up to 88% ee for a wide range of substrates possessing different substituted groups. A plausible mechanism for the high enantioselectivity was proposed.
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Affiliation(s)
- Mingli Wang
- School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, P. R. China.
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43
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Atar AB, Jeong YS, Jeong YT. Iron fluoride: the most efficient catalyst for one-pot synthesis of 4H-pyrimido[2,1-b]benzothiazoles under solvent-free conditions. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.05.094] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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44
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Mukherjee S, Roy R, Chandra Roy S. Titanocene(III) Chloride Mediated Stereoselective Synthesis of Trisubstituted Tetrahydrofurans and a Spirolactone by Tandem Radical Reactions. European J Org Chem 2014. [DOI: 10.1002/ejoc.201400097] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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45
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Barve BD, Wu YC, El-Shazly M, Korinek M, Cheng YB, Wang JJ, Chang FR. Iron-Catalyzed Oxidative Direct α-C–H Bond Functionalization of Cyclic Ethers: Selective C–O Bond Formation in the Presence of a Labile Aldehyde Group. Org Lett 2014; 16:1912-5. [DOI: 10.1021/ol5004115] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Balaji D. Barve
- Graduate
Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department
of Medicinal and Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yang-Chang Wu
- Graduate
Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- School
of Pharmacy, College of Pharmacy, China Medical University, Taichung 404, Taiwan
| | - Mohamed El-Shazly
- Graduate
Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Department
of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, Ain-Shams University, Organization of African Unity Street 11566, Abassia, Cairo, Egypt
| | - Michal Korinek
- Graduate
Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Yuan-Bin Cheng
- Graduate
Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Jeh-Jeng Wang
- Department
of Medicinal and Applied Chemistry, College of Life Sciences, Kaohsiung Medical University, Kaohsiung 807, Taiwan
| | - Fang-Rong Chang
- Graduate
Institute of Natural Products, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 807, Taiwan
- Translational
Research Center and Cancer Center, Kaohsiung Medical University Hospital, Kaohsiung 807, Taiwan
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46
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Gao Q, Wu X, Liu S, Wu A. I2-Promoted Selective Oxidative Cross-Coupling/Annulation of 2-Naphthols with Methyl Ketones: A Strategy To Build Naphtho[2,1-b]furan-1(2H)-ones with a Quaternary Center. Org Lett 2014; 16:1732-5. [DOI: 10.1021/ol5004093] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Qinghe Gao
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Xia Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Shan Liu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Anxin Wu
- Key Laboratory of Pesticide & Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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47
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Abstract
Iron-catalyzed/mediated C–H bond oxidation has been demonstrated as one of practical and straightforward tools in synthetic chemistry.
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Affiliation(s)
- Fan Jia
- 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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48
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Luo J, Zhou H, Hu J, Wang R, Tang Q. Efficient catalytic-free method to produce α-aryl cycloalkanones through highly chemoselective coupling of aryl compounds with oxyallyl cations. RSC Adv 2014. [DOI: 10.1039/c4ra01043d] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
Efficient catalytic-free method to produce α-aryl cycloalkanones through highly chemoselective coupling of aryl compounds with oxyallyl cations at room temperature.
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Affiliation(s)
- Juan Luo
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016, P. R. China
- The Faculty of Laboratory Medicine
| | - Hui Zhou
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016, P. R. China
| | - Jiwei Hu
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016, P. R. China
| | - Rui Wang
- School of Pharmacy & Bioengineering
- Chongqing University of Technology
- Chongqing 400054, P. R. China
| | - Qiang Tang
- Chongqing Key Laboratory of Biochemistry and Molecular Pharmacology
- College of Pharmacy
- Chongqing Medical University
- Chongqing 400016, P. R. China
- The Faculty of Laboratory Medicine
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49
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Kshirsagar UA, Parnes R, Goldshtein H, Ofir R, Zarivach R, Pappo D. Aerobic Iron-Based Cross-Dehydrogenative Coupling Enables Efficient Diversity-Oriented Synthesis of Coumestrol-Based Selective Estrogen Receptor Modulators. Chemistry 2013; 19:13575-83. [DOI: 10.1002/chem.201300389] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2013] [Revised: 06/12/2013] [Indexed: 12/29/2022]
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50
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Yang Y, Moschetta EG, Rioux RM. Addition of Sulfonic Acids to Terminal Alkynes Catalyzed by a Rhodium Complex: Ligand Concentration-Controlled Reaction Selectivity. ChemCatChem 2013. [DOI: 10.1002/cctc.201300228] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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