1
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Tsurugi H, Akiyama T, Frye CW, Kakiuchi Y, Mashima K, Tonks IA. Evaluation of Tungsten Catalysis among Early Transition Metals for N-Aryl-2,3,4,5-tetraarylpyrrole Synthesis: Modular Access to N-Doped π-Conjugated Material Precursors. Inorg Chem 2024; 63:3037-3046. [PMID: 38300807 PMCID: PMC11059426 DOI: 10.1021/acs.inorgchem.3c03858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Abstract
Low-valent tungsten species generated from WCl6 and N,N'-bis(trimethylsilyl)-2,5-dimethyldihydropyrazine (Si-Me2-DHP) promotes the catalytic formation of N-phenyl-2,3,4,5-tetraarylpyrroles 3aa-ka from diarylacetylenes 1a-k and azobenzene (2a). An initial catalyst activation process is a three-electron reduction of WCl6 with Si-Me2-DHP to afford transient 'WCl3' species. Catalytically active bis(imido)tungsten(VI) species via successive one-electron reduction and N═N bond cleavage of 2a was revealed by isolating W(═NPh)2Cl2(PMe2Ph)2 from imidotungsten(V) trichloride and 2a in the presence of PMe2Ph. The superior catalytic activity of the tungsten catalyst was clarified by a density functional theory study: activation energies for the key three steps, [2 + 2]-cycloaddition of W═NPh and diarylacetylene to form (iminoalkylidene)tungsten species, enyne metathesis with second diarylacetylene, and C-N bond formation, are reasonable values for the catalytic reaction at 180 °C. In addition, this tungsten catalyst overcame two distinct deactivation processes: α-enediamido formation and aggregation of the low-valent species, both of which were observed for previously developed vanadium and titanium catalysts. We also demonstrated the synthetic utility of pentaarylpyrroles 3aa and 3ba as well as N-(2-bromophenyl)-2,3,4,5-tetraarylpyrrole 3ab by derivatizing their π-conjugated compounds 9aa, 10ba, and 11ab.
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Affiliation(s)
- Hayato Tsurugi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
- Innovative Catalysis Science Division, Institute for Open and Transdisciplinary Research Initiatives (ICS-OTRI), Osaka University, Suita, Osaka 565-0871, Japan
| | - Takuya Akiyama
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Connor W. Frye
- Department of Chemistry, University of Minnesota–Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Yuya Kakiuchi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Kazushi Mashima
- Graduate School of Pharmaceutical Sciences, Osaka University, Suita, Osaka 565-0871, Japan
| | - Ian A. Tonks
- Department of Chemistry, University of Minnesota–Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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2
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Jagtap PA, Lokolkar MS, Bhanage BM. Cu-Mediated Tandem 2,3-Disubstituted Indole Synthesis from Simple Anilines and Internal Alkynes via C-H Annulation. J Org Chem 2023. [PMID: 37463299 DOI: 10.1021/acs.joc.3c00954] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/20/2023]
Abstract
A simple, cost-effective, and straightforward method for the synthesis of 2,3-disubstituted indole scaffolds has been developed. The present protocol involves copper-mediated tandem hydroamination followed by C-H annulation of unprotected anilines with a wide range of internal alkynes. In the presence of Cu(OAc)2·H2O and trifluoroacetic acid (TFA), the reaction proceeds well to afford a variety of substituted indole derivatives in moderate to good yields. This process was found to be compatible with both primary and secondary anilines coupled with aromatic/aliphatic alkynes. High-purity copper nanoparticles can be recovered after the reaction, revealing the cost-effectiveness and environmentally benign feature of the current protocol.
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Affiliation(s)
- Prafull A Jagtap
- Department of Chemistry, Institute of Chemical Technology, Mumbai 400019, India
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3
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Wang Q, Xiao F, Huang Z, Mao G, Deng GJ. CuBr 2-Catalyzed Annulation of 2-Bromo- N-Arylbenzimidamide with Se/S 8 Powder for the Synthesis of Benzo[ d]isoselenazole and Benzo[ d]isothiazole. J Org Chem 2023; 88:1963-1976. [PMID: 36720013 DOI: 10.1021/acs.joc.2c02088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
A CuBr2-catalyzed annulation of 2-bromo-N-arylbenzimidamide with selenium/sulfur powder for the synthesis of benzo[d]isoselenazole and benzo[d]isothiazole in generally good yields was investigated. This synthetic strategy features good substrate scope and functional group tolerance. Furthermore, the corresponding products could be converted into N-aryl indoles via rhodiumIII-catalyzed ortho C-H activation of the N-phenyl ring, providing an efficient approach for axial aromatic molecules.
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Affiliation(s)
- Quanyuan Wang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Fuhong Xiao
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Zhi Huang
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Guojiang Mao
- School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
| | - Guo-Jun Deng
- Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, Hunan Province Key Laboratory of Green Organic Synthesis and Application, College of Chemistry, Xiangtan University, Xiangtan 411105, China
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4
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Han Z, Deng Y, Liu X, Zhang P, Lu X. Study on the Electrochemiluminescence of Pentaphenylpyrrole in the Aqueous Phase Based on Structure-Regulated Strategy. Anal Chem 2022; 94:17709-17715. [PMID: 36475658 DOI: 10.1021/acs.analchem.2c04646] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocyclic nitrogen compounds play a vital role in luminescent materials, but most of them face the challenges of aggregation-caused quenching (ACQ) and poor water solubility. In this work, we present the nitrogen heterocyclic pentaphenylpyrrole (PentaPP) with an excellent aggregation-induced electrochemiluminescence (AIE-ECL) performance in the aqueous phase through the comparison of the elegant ECL luminophore 5,10,15,20-tetraphenylporphyrin (TPP). Further studies suggest that such unique AIE-ECL arises from its propeller-like noncoplanar structure and the large conjugation from the phenyl groups on the ring. In addition, the new ECL analysis could feature some advantages of AIE characteristic, water compatibility, and strong signal and finally achieve the ultrasensitive detection toward the explosive 2,4,6-trinitrophenol (TNP) with a lower detection limit (1.1 nM). This study does not only benefit to solve the two key problems mentioned before but also enriches the fundamentals and applications for ECL and pyrrole research.
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Affiliation(s)
- Zhengang Han
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Yanfang Deng
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Xiujuan Liu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Pengping Zhang
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
| | - Xiaoquan Lu
- Key Laboratory of Bioelectrochemistry and Environmental Analysis of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, People's Republic of China
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5
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Fang S, Chen W, Jiang H, Ma R, Wu W. Palladium-catalyzed oxidative C-H activation/annulation of N-alkylanilines with bromoalkynes: access to functionalized 3-bromoindoles. Chem Commun (Camb) 2022; 58:9666-9669. [PMID: 35946388 DOI: 10.1039/d2cc03298h] [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
A straightforward approach to the synthesis of 3-bromoindoles via palladium-catalyzed oxidative C-H activation/annulation of N-alkylanilines with bromoalkynes has been described. This protocol features high atom economy, excellent chemo- and regioselectivities, and good functional group tolerance. Moreover, the resultant 3-bromoindoles can be transformed to various functionalized indole derivatives, which demonstrates the practicability of this method in organic synthesis.
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Affiliation(s)
- Songjia Fang
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Wenhao Chen
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Huanfeng Jiang
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Ruize Ma
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
| | - Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, China.
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6
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Bai J, Xu N, Wang H, Luan X. Palladium(II)-Catalyzed [2+2+1] Annulation of Alkynes and Hydroxylamines: A Rodox-Neutral Approach to Fully Substituted Pyrroles. Org Lett 2022; 24:5099-5104. [PMID: 35819925 DOI: 10.1021/acs.orglett.2c01925] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A palladium-catalyzed [2+2+1] annulation of alkynes and hydroxylamines has been developed for the rapid construction of fully substituted pyrroles. This transformation involves sequential nucleophilic-addition of hydroxylamine to alkyne, alkyne migratory insertion, and synergistic demetallization cyclization, which provides a redox-neutral annulation approach to pyrrole derivatives. Moreover, the strategy enabled alteration of the photophysical properties of pyrrole products by varying the aryl substituents, thus leading to the development of N-functionalized tetraarylpyrroles as new fluorophores.
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Affiliation(s)
- Jiaxing Bai
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Nengni Xu
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Hui Wang
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
| | - Xinjun Luan
- Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education, College of Chemistry & Materials Science, Northwest University, Xi'an 710127, China
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7
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Rigid-induced aggregated annihilation electrochemiluminescence of 1,2,3-triaryl-substituted indoles in aqueous phase. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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8
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Qiu M, Fu X, Fu P, Huang J. Construction of aziridine, azetidine, indole and quinoline-like heterocycles via Pd-mediated C-H activation/annulation strategies. Org Biomol Chem 2022; 20:1339-1359. [PMID: 35044404 DOI: 10.1039/d1ob02146j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
N-Heterocycles can be found in natural products and drug molecules and are indispensable components in the area of organic synthesis, medicinal chemistry and materials science. The construction of these N-containing heterocycles by traditional methods usually requires the preparation of reactive intermediates. In the past decades, with the rapid growth of transition metal catalysed coupling reactions, syntheses of heterocycles from precursors with inert chemical bonds have become a challenge. More recently, in the field of transition metal associated C-H direct functionalization, efficient methods have been developed for the syntheses of N-heterocyclic compounds such as aziridines, azetidines, indoles and quinolines under the click type of reaction mode. In this review, representative synthetic methodologies developed in the recent 10 years for the preparation of this small class of N-heterocycles via the Pd-catalysed C-H activation and C-N bond formation pathway are discussed. We hope this article will provide new insights from the strategies highlighted into future molecular design, synthesis and applications in medical and materials sciences.
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Affiliation(s)
- Mengyu Qiu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xuegang Fu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Peng Fu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jianhui Huang
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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9
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Synthesis of Indoles via Intermolecular and Intramolecular Cyclization by Using Palladium-Based Catalysts. Catalysts 2021. [DOI: 10.3390/catal11091018] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
As part of natural products or biologically active compounds, the synthesis of nitrogen-containing heterocycles is becoming incredibly valuable. Palladium is a transition metal that is widely utilized as a catalyst to facilitate carbon-carbon and carbon-heteroatom coupling; it is used in the synthesis of various heterocycles. This review includes the twelve years of successful indole synthesis using various palladium catalysts to establish carbon-carbon or carbon-nitrogen coupling, as well as the conditions that have been optimized.
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10
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Chang D, Chen J, Liu Y, Huang H, Qin A, Deng GJ. Metal-Free Synthesis and Photophysical Properties of 1,2,4-Triarylpyrroles. J Org Chem 2020; 86:110-127. [DOI: 10.1021/acs.joc.0c01788] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dan Chang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Jinjin Chen
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Yong Liu
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Huawen Huang
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
| | - Anjun Qin
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
| | - Guo-Jun Deng
- Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Key Laboratory of Environmentally Friendly Chemistry and Application of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, China
- Guangdong Provincial Key Laboratory of Luminescence from Molecular Aggregates, South China University of Technology, Guangzhou 510640, China
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11
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Qian Y, Shang J, Lyu Z, Huang X, Guan A, Xu L, Gong H. Synthesis of
π‐Extended
Carbazoles via
One‐Pot
C—C Coupling and Chlorination Promoted by
FeCl
3
. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000230] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yang Qian
- Department of Chemistry, Renmin University of China Zhongguancundajie 59 Beijing 100872 China
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Jia Shang
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Zhen‐Hua Lyu
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Xin Huang
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
| | - Ai‐jiao Guan
- Institute of Chemistry, Chinese Academy of Sciences Zhongguancunbeiyijie 2 Beijing 100190 China
| | - Li‐Jin Xu
- Department of Chemistry, Renmin University of China Zhongguancundajie 59 Beijing 100872 China
| | - Han‐Yuan Gong
- College of Chemistry, Beijing Normal University Xinjiekouwaidajie 19 Beijing 100875 China
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12
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Yamaguchi M, Hagiwara R, Gayama K, Suzuki K, Sato Y, Konishi H, Manabe K. Direct C3-Selective Arylation of N-Unsubstituted Indoles with Aryl Chlorides, Triflates, and Nonaflates Using a Palladium-Dihydroxyterphenylphosphine Catalyst. J Org Chem 2020; 85:10902-10912. [PMID: 32806091 DOI: 10.1021/acs.joc.0c01494] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A palladium-dihydroxyterphenylphosphine (DHTP) catalyst was successfully applied to the direct C3-arylation of N-unsubstituted indoles with aryl chlorides, triflates, and nonaflates. This catalyst showed C3-selectivity, whereas catalysts with other structurally related ligands exhibited N1-selectivity. Complex formation between the lithium salts of the ligand and the indole is assumed to accelerate the arylation at the C3 position. Reactions using 3-alkylindoles afforded 3,3-disubstituted indolenines, which can be further converted to the corresponding indoline derivatives.
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Affiliation(s)
- Miyuki Yamaguchi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ryoya Hagiwara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kanami Gayama
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kohei Suzuki
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yusuke Sato
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hideyuki Konishi
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kei Manabe
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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13
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Jiang TS, Dai L, Zhou Y, Zhang X. Palladium-catalyzed tandem oxidative annulation of α-amino ketones leading to 2-aroylindoles. Tetrahedron 2020. [DOI: 10.1016/j.tet.2019.130917] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Neto JSS, Zeni G. Recent advances in the synthesis of indoles from alkynes and nitrogen sources. Org Chem Front 2020. [DOI: 10.1039/c9qo01315f] [Citation(s) in RCA: 78] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This review highlights ten years of success in the synthesis of indoles using alkynes and nitrogen sources as substrates.
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Affiliation(s)
- José Sebastião Santos Neto
- Laboratório de Síntese
- Reatividade
- Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE
- UFSM
- Santa Maria
| | - Gilson Zeni
- Laboratório de Síntese
- Reatividade
- Avaliação Farmacológica e Toxicológica de Organocalcogênios CCNE
- UFSM
- Santa Maria
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15
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Jafarpour F, Ghasemi M, Mohaghegh F, Asgari S, Habibi A. A Fast Track to Indoles and Annulated Indoles through ortho- vs ipso-Amination of Aryl Halides. Org Lett 2019; 21:10143-10148. [DOI: 10.1021/acs.orglett.9b04202] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Farnaz Jafarpour
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Mehran Ghasemi
- Faculty of Chemistry, Kharazmi University, No. 43. Mofateh Street, Enghelab Ave., 15719-14911 Tehran, Iran
| | - Farid Mohaghegh
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Sara Asgari
- School of Chemistry, College of Science, University of Tehran, 14155-6455 Tehran, Iran
| | - Azizollah Habibi
- Faculty of Chemistry, Kharazmi University, No. 43. Mofateh Street, Enghelab Ave., 15719-14911 Tehran, Iran
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16
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Sapegin A, Krasavin M. One-Pot Conversion of Aldehydes and Aryl Halides to Disubstituted Alkynes via Tandem Seyferth–Gilbert Homologation/Copper-Free Sonogashira Coupling. J Org Chem 2019; 84:8788-8795. [DOI: 10.1021/acs.joc.9b01367] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
| | - Mikhail Krasavin
- Saint Petersburg State University, Saint Petersburg 199034, Russia
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17
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Kawakita K, Beaumier EP, Kakiuchi Y, Tsurugi H, Tonks IA, Mashima K. Bis(imido)vanadium(V)-Catalyzed [2+2+1] Coupling of Alkynes and Azobenzenes Giving Multisubstituted Pyrroles. J Am Chem Soc 2019; 141:4194-4198. [PMID: 30731038 PMCID: PMC6460926 DOI: 10.1021/jacs.8b13390] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The combination of VCl3(THF)3 and N, N-bis(trimethylsilyl)aniline (1a) is an efficient catalyst for the [2+2+1] coupling reaction of alkynes and azobenzenes, giving multisubstituted pyrroles. A plausible reaction mechanism involves the generation of a mono(imido)vanadium(III) species as an initiation step, where 1a served as an imido source with concomitant release of 2 equiv of ClSiMe3, followed by a reaction with azobenzene to form a catalytically active bis(imido)vanadium(V) species via N═N bond cleavage.
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Affiliation(s)
- Kento Kawakita
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Evan P. Beaumier
- Department of Chemistry, University of Minnesota—Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Yuya Kakiuchi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Hayato Tsurugi
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
| | - Ian A. Tonks
- Department of Chemistry, University of Minnesota—Twin Cities, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Kazushi Mashima
- Department of Chemistry, Graduate School of Engineering Science, Osaka University, Toyonaka, Osaka 560-8531, Japan
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18
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Shaikh MM, Patel AP, Patel SP, Chikhalia KH. Synthesis, in vitro COX-1/COX-2 inhibition testing and molecular docking study of novel 1,4-benzoxazine derivatives. NEW J CHEM 2019. [DOI: 10.1039/c9nj00684b] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The present work deals with an efficient and straightforward synthesis, biological activity and molecular docking study of novel 1,4-benzoxazine derivatives.
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Affiliation(s)
| | - Anuj P. Patel
- Department of Chemistry
- Gujarat University
- Ahmedabad
- India
| | - Shivani P. Patel
- Division of Biological and Life Sciences
- Ahmedabad University
- Ahmedabad
- India
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19
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Ren L, Nan G, Wang Y, Xiao Z. Carboxylic Acid-Promoted Single-Step Indole Construction from Simple Anilines and Ketones via Aerobic Cross-Dehydrogenative Coupling. J Org Chem 2018; 83:14472-14488. [PMID: 30378428 DOI: 10.1021/acs.joc.8b02180] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The cross-dehydrogenative coupling (CDC) reaction is an efficient strategy for indole synthesis. However, most CDC methods require special substrates, and the presence of inherent groups limits the versatility for further transformation. A carboxylic acid-promoted aerobic catalytic system is developed herein for a single-step synthesis of indoles from simple anilines and ketones. This versatile system is featured by the broad substrate scope and the use of ambient oxygen as an oxidant and is convenient and economical for both laboratory and industry applications. The existence of the labile hydrogen at C-3 and the highly transformable carbonyl at C-2 makes the indoles versatile building blocks for organic synthesis in different contexts. Computational studies based on the density functional theory (DFT) suggest that the rate-determining step is carboxylic acid-assisted condensation of the substrates, rather than the functionalization of aryl C-H. Accordingly, a pathway via imine intermediates is deemed to be the preferred mechanism. In contrast to the general deduction, the in situ formed imine, instead of its enamine isomer, is believed to be involved in the first ligand exchange and later carbopalladation of the α-Me, which shed new light on this indolization mechanism.
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Affiliation(s)
- Long Ren
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Guanglei Nan
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Yongcheng Wang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
| | - Zhiyan Xiao
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation, Institute of Materia Medica , Chinese Academy of Medical Sciences and Peking Union Medical College , Beijing 100050 , China
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20
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Affiliation(s)
- So Won Youn
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Natural Sciences; Hanyang University; Seoul 04763 Korea
| | - Tae Yun Ko
- Center for New Directions in Organic Synthesis, Department of Chemistry and Institute for Natural Sciences; Hanyang University; Seoul 04763 Korea
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21
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Synthesis of pyrroles via ruthenium-catalyzed nitrogen-transfer [2 + 2 + 1] cycloaddition of α,ω-diynes using sulfoximines as nitrene surrogates. Commun Chem 2018. [DOI: 10.1038/s42004-018-0022-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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22
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Sharma S, Singh S, Kumari A, Sawant DM, Pardasani RT. Ruthenium-Catalyzed Oxidative Annulation of Anilines using Benzothiazole as a Removable Directing Group. ASIAN J ORG CHEM 2017. [DOI: 10.1002/ajoc.201700098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Shivani Sharma
- Department of Chemistry; Central University of Rajasthan, Bandarsindri; Kishangarh- 305817 Rajasthan India
| | - Sukanya Singh
- Department of Pharmacy; Central University of Rajasthan, Bandarsindri; Kishangarh- 305817 Rajasthan India
| | - Akhilesh Kumari
- Department of Pharmacy; Central University of Rajasthan, Bandarsindri; Kishangarh- 305817 Rajasthan India
| | - Devesh M. Sawant
- Department of Pharmacy; Central University of Rajasthan, Bandarsindri; Kishangarh- 305817 Rajasthan India
| | - Ram T. Pardasani
- Department of Chemistry; Central University of Rajasthan, Bandarsindri; Kishangarh- 305817 Rajasthan India
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23
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Gazzola S, Beccalli EM, Bernasconi A, Borelli T, Broggini G, Mazza A. Palladium-Catalysed Carbo- and Hydroamination of Allenyl Ethers and Aminoallenes: Available Entry to Nitrogen-Containing Benzo-Fused Rings. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600720] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Silvia Gazzola
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Egle M. Beccalli
- DISFARM; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Alice Bernasconi
- DISFARM; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
| | - Tea Borelli
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia; Università degli Studi dell'Insubria; Via Valleggio 9 22100 Como Italy
| | - Alberto Mazza
- DISFARM; Sezione di Chimica Generale e Organica “A. Marchesini”; Università degli Studi di Milano; Via Venezian 21 20133 Milano Italy
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24
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Wang H, Huang H. Transition-Metal-Catalyzed Redox-Neutral and Redox-Green C-H Bond Functionalization. CHEM REC 2016; 16:1807-18. [DOI: 10.1002/tcr.201500274] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Hongli Wang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics Chinese Academy of Sciences; Lanzhou 730000 P. R. China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation; Lanzhou Institute of Chemical Physics Chinese Academy of Sciences; Lanzhou 730000 P. R. China
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25
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Copper-catalyzed [3+2] annulation of propargylic acetates with anilines in the presence of trimethylsilyl chloride leading to 2,3-disubstituted indoles via an aza-Claisen rearrangement. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2016.04.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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26
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Boyarskiy VP, Ryabukhin DS, Bokach NA, Vasilyev AV. Alkenylation of Arenes and Heteroarenes with Alkynes. Chem Rev 2016; 116:5894-986. [DOI: 10.1021/acs.chemrev.5b00514] [Citation(s) in RCA: 319] [Impact Index Per Article: 39.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vadim P. Boyarskiy
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
| | - Dmitry S. Ryabukhin
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per. 5, Saint Petersburg 194021, Russia
| | - Nadezhda A. Bokach
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
| | - Aleksander V. Vasilyev
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya nab., 7/9, Saint Petersburg 199034, Russia
- Department of Chemistry, Saint Petersburg State Forest Technical University, Institutsky per. 5, Saint Petersburg 194021, Russia
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27
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Yu K, Liang Y, Li B, Wang B. Rhodium(III)-Catalyzed Synthesis of Indole Derivatives From Pyrimidyl-Substituted Anilines and Diazo Compounds. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201500954] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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28
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Shen D, Han J, Chen J, Deng H, Shao M, Zhang H, Cao W. Mild and Efficient One-Pot Synthesis of 2-(Perfluoroalkyl)indoles by Means of Sequential Michael-Type Addition and Pd(II)-Catalyzed Cross-Dehydrogenative Coupling (CDC) Reaction. Org Lett 2015; 17:3283-5. [DOI: 10.1021/acs.orglett.5b01479] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Dandan Shen
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, People’s Republic of China
| | - Jing Han
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, People’s Republic of China
| | - Jie Chen
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, People’s Republic of China
| | - Hongmei Deng
- Laboratory
for Microstructures, Instrumental Analysis and Research Center of Shanghai University, Shanghai 200444, People’s Republic of China
| | - Min Shao
- Laboratory
for Microstructures, Instrumental Analysis and Research Center of Shanghai University, Shanghai 200444, People’s Republic of China
| | - Hui Zhang
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, People’s Republic of China
- Laboratory
for Microstructures, Instrumental Analysis and Research Center of Shanghai University, Shanghai 200444, People’s Republic of China
| | - Weiguo Cao
- Department
of Chemistry, Innovative Drug Research Center, Shanghai University, Shanghai 200444, People’s Republic of China
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
- Key
Laboratory of Organofluorine Chemistry, Shanghai Institute of Organic
Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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29
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Fujii H, Oka S, Nakamura I, Kawai Y, Ikeda R, Konakahara T, Abe N. The Cycloaddition of 2-Phenylamino-1-azaazulene with Diphenylacetylene Using Palladium Catalytic Systems. HETEROCYCLES 2015. [DOI: 10.3987/com-14-s(k)50] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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30
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Zhang G, Yu H, Qin G, Huang H. Rh-Catalyzed oxidative C–H activation/annulation: converting anilines to indoles using molecular oxygen as the sole oxidant. Chem Commun (Camb) 2014; 50:4331-4. [DOI: 10.1039/c3cc49751h] [Citation(s) in RCA: 116] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A practical and efficient Rh(iii)-catalyzed oxidative C–H annulation using molecular oxygen as the sole oxidant has been developed for the facile synthesis of a broad range of indoles from simple anilines and alkynes.
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Affiliation(s)
- Guoying Zhang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
| | - Hui Yu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
| | - Guiping Qin
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
| | - Hanmin Huang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation
- Lanzhou Institute of Chemical Physics
- Chinese Academy of Sciences
- Lanzhou, China
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31
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Beccalli EM, Broggini G, Gazzola S, Mazza A. Recent advances in heterobimetallic palladium(ii)/copper(ii) catalyzed domino difunctionalization of carbon–carbon multiple bonds. Org Biomol Chem 2014; 12:6767-89. [DOI: 10.1039/c4ob00610k] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The Pd(ii)/Cu(ii)-catalysed double functionalization of carbon–carbon multiple bonds in domino processes has emerged in recent years as a fruitful tool for the rapid synthesis of complex molecular scaffolds.
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Affiliation(s)
- Egle M. Beccalli
- DISFARM
- Sezione Chimica Generale Organica “A. Marchesini”
- 20133 Milano, Italy
| | - Gianluigi Broggini
- Dipartimento di Scienza e Alta Tecnologia
- Università dell'Insubria
- 22100 Como, Italy
| | - Silvia Gazzola
- Dipartimento di Scienza e Alta Tecnologia
- Università dell'Insubria
- 22100 Como, Italy
| | - Alberto Mazza
- DISFARM
- Sezione Chimica Generale Organica “A. Marchesini”
- 20133 Milano, Italy
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32
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Yoshikai N, Wei Y. Synthesis of Pyrroles, Indoles, and Carbazoles through Transition-Metal-Catalyzed CH Functionalization. ASIAN J ORG CHEM 2013. [DOI: 10.1002/ajoc.201300016] [Citation(s) in RCA: 175] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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