1
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Song Q, Zhang L, Wang B, Chen Z, Jin W, Xia Y, Wu S, Liu C, Zhang Y. Pd-Catalyzed Direct C7 Trifluoromethylation of Indolines with Umemoto's Reagent. Org Lett 2024; 26:3685-3690. [PMID: 38286988 DOI: 10.1021/acs.orglett.3c04123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2024]
Abstract
An efficient palladium-catalyzed region-selective C7-trifluoromethylation of indolines using commercially available Umemoto's reagent was reported. The reaction utilizing Umemoto's reagent as CF3 radical precursor, pyrimidine as a removable directing group, Pd(II) as a catalyst, and Cu(II) as an oxidant furnished the required products with excellent regioselectivities and good yields. The present strategy has good region-selectivity, broad substrate scope, and scale-up application. Additionally, the present method was underlined by the direct C-1 trifluoromethylation of carbazoles. Furthermore, C7 trifluoromethylated indole can also be easily obtained via Pd-catalyzed direct C-7 trifluoromethylation/oxidation/deprotection sequential reactions.
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Affiliation(s)
- Qinglang Song
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Lin Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Bin Wang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Ziren Chen
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Weiwei Jin
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Yu Xia
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Shaofeng Wu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
| | - Chenjiang Liu
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
- College of Future Technology, Xinjiang University, Urumqi 830017, P. R. China
- Institute of Materia Medica, Xinjiang University, Urumqi 830017, P. R. China
| | - Yonghong Zhang
- Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, P. R. China
- Institute of Materia Medica, Xinjiang University, Urumqi 830017, P. R. China
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2
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de Carvalho RL, Diogo EBT, Homölle SL, Dana S, da Silva Júnior EN, Ackermann L. The crucial role of silver(I)-salts as additives in C-H activation reactions: overall analysis of their versatility and applicability. Chem Soc Rev 2023; 52:6359-6378. [PMID: 37655711 PMCID: PMC10714919 DOI: 10.1039/d3cs00328k] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2023] [Indexed: 09/02/2023]
Abstract
Transition-metal catalyzed C-H activation reactions have been proven to be useful methodologies for the assembly of synthetically meaningful molecules. This approach bears intrinsic peculiarities that are important to be studied and comprehended in order to achieve its best performance. One example is the use of additives for the in situ generation of catalytically active species. This strategy varies according to the type of additive and the nature of the pre-catalyst that is being used. Thus, silver(I)-salts have proven to play an important role, due to the resulting high reactivity derived from the pre-catalysts of the main transition metals used so far. While being powerful and versatile, the use of silver-based additives can raise concerns, since superstoichiometric amounts of silver(I)-salts are typically required. Therefore, it is crucial to first understand the role of silver(I) salts as additives, in order to wisely overcome this barrier and shift towards silver-free systems.
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Affiliation(s)
- Renato L de Carvalho
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais-UFMG, 31270-901, Belo Horizonte, MG, Brazil.
| | - Emilay B T Diogo
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais-UFMG, 31270-901, Belo Horizonte, MG, Brazil.
| | - Simon L Homölle
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
| | - Suman Dana
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
| | - Eufrânio N da Silva Júnior
- Institute of Exact Sciences, Department of Chemistry, Federal University of Minas Gerais-UFMG, 31270-901, Belo Horizonte, MG, Brazil.
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry, Georg-August-Universität Göttingen, Tammannstrasse 2, 37077 Göttingen, Germany.
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3
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Gao J, Song Q, Zhang L, Shao J, Wang B, Iqbal A, Jin W, Xia Y, Liu C, Zhang Y. Pd-Catalyzed C-7 Arylation of Indolines with Aryltriazenes under Mild Conditions. J Org Chem 2023; 88:11056-11068. [PMID: 37462323 DOI: 10.1021/acs.joc.3c01022] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/05/2023]
Abstract
A palladium-catalyzed direct C-H arylation of indolines at C-7 position has been achieved at near-ambient temperature. The reaction was carried out with aryltriazene as a stable aryl source and electron shuttle to sustainably release aryl radical in situ under the action of promoter, and pyrimidine as a detachable directing group for the synthesis of 7-arylindolines under oxidant- and ligand-free conditions. Notably, this catalytic system can also be applied to the direct and site-selective arylation of tetrahydroquinolines (C-8) and carbazoles (C-1).
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Affiliation(s)
- Jianan Gao
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Qinglang Song
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Lin Zhang
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Junhao Shao
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Bin Wang
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Azhar Iqbal
- Department of Chemistry, Bacha Khan University, Charsadda 24420, Pakistan
| | - Weiwei Jin
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Yu Xia
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Chenjiang Liu
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
- College of Future Technology, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
| | - Yonghong Zhang
- State Key Laboratory of Chemistry and Utilization of Carbon-Based Energy Resources, Key Laboratory of Oil and Gas Fine Chemicals, Ministry of Education & Xinjiang Uygur Autonomous Region, Urumqi Key Laboratory of Green Catalysis and Synthesis Technology, College of Chemistry, Xinjiang University, Urumqi, Xinjiang 830017, P. R. China
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4
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Pang Q, Zuo WF, Zhang Y, Li X, Han B. Recent Advances on Direct Functionalization of Indoles in Aqueous Media. CHEM REC 2023; 23:e202200289. [PMID: 36722727 DOI: 10.1002/tcr.202200289] [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: 12/11/2022] [Revised: 01/15/2023] [Indexed: 02/02/2023]
Abstract
Indoles and their derivatives have dominated a significant proportion of nitrogen-containing heterocyclic compounds and play an essential role in synthetic and medicinal chemistry, pesticides, and advanced materials. Compared with conventional synthetic strategies, direct functionalization of indoles provides straightforward access to construct diverse indole scaffolds. As we enter an era emphasizing green and sustainable chemistry, utilizing environment-friendly solvents represented by water demonstrates great potential in synthesizing valuable indole derivatives. This review aims to depict the critical aspects of aqueous-mediated indoles functionalization over the past decade and discusses the future challenges and prospects in this fast-growing field. For the convenience of readers, this review is classified into three parts according to the bonding modes (C-C, C-N, and C-S bonds), which focus on the diversity of indole derivatives, the prominent role of water in the chemical process, and the types of catalyst systems and mechanisms. We hope this review can promote the sustainable development of the direct functionalization of indoles and their derivatives and the discovery of novel and practical organic methods in aqueous phase.
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Affiliation(s)
- Qiwen Pang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Wei-Fang Zuo
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Yang Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Xiang Li
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
| | - Bo Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, China
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5
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DFT Insights into the mechanism of Ru(II) Catalyzed C7-selective amidation of N-pivaloylindole. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Li H, Luo H, Ban Y, Wang Y, Li D, Yang J. Thioamide‐Directed Transition‐metal‐catalyzed C(sp2) –H bond vinylation and arylation of Ferrocenes. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hao Li
- Ningxia University State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering CHINA
| | - Hui Luo
- Ningxia University State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering CHINA
| | - Yan Ban
- Ningxia University State Key Laboratory of High Efficiency Utilization of Coal and Green Chemical Engineering CHINA
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7
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Zhang X, Zhang F, Li X, Lu MZ, Meng X, Huang L, Luo H. Direct Synthesis of Biphenyl-2-carbonitriles by Rh(III)-Catalyzed C-H Hiyama Cross-Coupling in Water. Org Lett 2022; 24:5029-5033. [PMID: 35822841 DOI: 10.1021/acs.orglett.2c01754] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This method represents an efficient rhodium(III)-catalyzed o-C-H arylation of readily available benzimidate derivatives with diverse arylsilanes in water as a sustainable solvent, enabling the straightforward synthesis of potentially useful biphenyl-2-carbonitrile derivatives. This silicon-based protocol employs benzimidates as both an efficacious directing group and the source of a nitrile group.
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Affiliation(s)
- Xiuqi Zhang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Fukuan Zhang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Xiaolan Li
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Ming-Zhu Lu
- College of Advanced Interdisciplinary Science and Technology, Henan University of Technology, Zhenzhou 450001, China
| | - Xin Meng
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Lei Huang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
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8
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Wang X, Xun X, Song H, Liu Y, Wang Q. Palladium Metallaphotoredox-Catalyzed 2-Arylation of Indole Derivatives. Org Lett 2022; 24:4580-4585. [PMID: 35727313 DOI: 10.1021/acs.orglett.2c01674] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Given that biaryl motifs are found in many useful molecules, including pesticides, pharmaceuticals, functional materials, and polymers, the development of methods for their construction is important. Herein, we report a two-step method for C(sp2)-H/C(sp2)-H cross-coupling reactions to synthesize 2-arylindole derivatives by combining palladium catalysis and photocatalysis. This mild, dual-catalysis method showed good functional group tolerance and a wide substrate scope and could be used for late-stage functionalization of oligopeptides, drugs, and natural products.
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Affiliation(s)
- Xinmou Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Xiwei Xun
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Hongjian Song
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Yuxiu Liu
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
| | - Qingmin Wang
- State Key Laboratory of Elemento-Organic Chemistry, Research Institute of Elemento-Organic Chemistry, College of Chemistry, Frontiers Science Center for New Organic Matter, Nankai University, Tianjin 300071, People's Republicof China
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9
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Wang Y, Shen H, Qiu J, Chen M, Song W, Zhao M, Wang L, Bai F, Wang H, Wu Z. Copper-Promoted Hiyama Cross-Coupling of Arylsilanes With Thiuram Reagents: A Facile Synthesis of Aryl Dithiocarbamates. Front Chem 2022; 10:867806. [PMID: 35559223 PMCID: PMC9087285 DOI: 10.3389/fchem.2022.867806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 03/09/2022] [Indexed: 11/13/2022] Open
Abstract
We report herein a facile Hiyama cross-coupling reaction of arylsilanes with thiuram reagents (tetraalkylthiuram disulfides or tetraalkylthiuram monosulfide) enabled by copper fluoride. Compared to our previous work, this protocol is an alternative protocol for the generation of S-aryl dithiocarbamates. It features low toxic and readily available substrates, cost-effective promoter, easy performance, and provides good yields.
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Affiliation(s)
- Yiying Wang
- Flavors and Fragrance Engineering and Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Hongtao Shen
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
| | - Jianhua Qiu
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
| | - Mengqi Chen
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
- *Correspondence: Mengqi Chen, ; Weimin Song, ; Zhiyong Wu,
| | - Weimin Song
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
- *Correspondence: Mengqi Chen, ; Weimin Song, ; Zhiyong Wu,
| | - Mingqin Zhao
- Flavors and Fragrance Engineering and Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Longfei Wang
- Flavors and Fragrance Engineering and Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
| | - Feng Bai
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
| | - Hongxia Wang
- Technology Center, China Tobacco Henan Industrial Co., Ltd., Zhengzhou, China
| | - Zhiyong Wu
- Flavors and Fragrance Engineering and Technology Research Center of Henan Province, College of Tobacco Science, Henan Agricultural University, Zhengzhou, China
- *Correspondence: Mengqi Chen, ; Weimin Song, ; Zhiyong Wu,
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10
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Xie Q, Zhang X, Liu H, Zhang F, Luo X, Luo H. Copper‐Catalyzed N‐Arylation of Indoles and Anilines with Aryltrialkoxysilanes. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202100792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Qi Xie
- Gannan Normal University Department of Chemistry & Chemical Engineering CHINA
| | - Xiuqi Zhang
- Gannan Normal University Department of Chemistry & Chemical Engineering CHINA
| | - Huijin Liu
- Gannan Normal University Department of Chemistry &Chemical Engineering CHINA
| | - Fukuan Zhang
- Gannan Normal University Department of Chemistry & Chemical Engineer CHINA
| | - Xuzhong Luo
- Gannan Normal University Department of Chemistry & Chemical Engineering CHINA
| | - Haiqing Luo
- Gannan Normal University Department of Chemistry & Chemical Engineering Economic &Technological Development Zone 341000 Ganzhou CHINA
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11
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Niu Y, Yan CX, Yang XX, Bai PB, Zhou PP, Yang SD. Solvent-controlled regioselective arylation of indoles and mechanistic explorations. Org Chem Front 2022. [DOI: 10.1039/d1qo01454d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A new reaction for the regioselective arylation of indoles at C2 or C3 positions achieved by adjusting the solvent and with P(O)tBu2 as an auxiliary group is reported. And the experimental results and DFT confirmed the process.
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Affiliation(s)
- Yuan Niu
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Chao-Xian Yan
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xin-Xin Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Peng-Bo Bai
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Pan-Pan Zhou
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Shang-Dong Yang
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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12
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Yang Z, Yu JT, Pan C. Recent advances in rhodium-catalyzed C(sp 2)-H (hetero)arylation. Org Biomol Chem 2021; 19:8442-8465. [PMID: 34553744 DOI: 10.1039/d1ob01190a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Arylation is a common behaviour in organic synthesis for the construction of complex structures, especially the biaryls. Among those reported arylation procedures, transition-metal-catalyzed direct C(sp2)-H arylation has been rapidly developed in recent decades and has become a reliable alternative to traditional cross-coupling procedures using organometallic reagents. Great achievements in rhodium-catalyzed C(sp2)-H arylation have been witnessed during the last decade. Aryl halides, simple arenes, aryl boronic acids, arylsilanes, aryl aldehyde, aryl carboxylic acid, diazides, etc. were successfully utilized as arylating reagents under rhodium-catalyzed conditions. In this review, recent achievements in rhodium-catalyzed arylations through C(sp2)-H bond activation were summarized together with the mechanism discussions.
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Affiliation(s)
- Zixian Yang
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, Changzhou University, Changzhou 213164, P. R. China.
| | - Changduo Pan
- School of Chemistry & Environmental Engineering, Jiangsu University of Technology, Changzhou 213001, P. R. China.
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13
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N-Directed Pd-Catalyzed Photoredox-Mediated C–H Arylation for Accessing Phenyl-Extended Analogues of Biginelli/Suzuki-Derived Ethyl 4-Methyl-2,6-diphenylpyrimidine-5-carboxylates. Catalysts 2021. [DOI: 10.3390/catal11091071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The availability and application of direct, functional group-compatible C–H activation methods for late-stage modification of small-molecule bioactives and other valuable materials remains an ongoing challenge in organic synthesis. In the current study, we demonstrate that a LED-activated, photoredox-mediated, Pd(OAc)2-catalyzed C–H arylation, employing a phenyldiazonium aryl source and either tris(2,2′-bipyridine)ruthenium(II) or (2,2′-bipyridine)bis[3,5-di-fluoro-2-[5-(trifluoromethyl)-2-pyridinyl-kN][phenyl-kC]iridium(III) as photoredox initiator, may successfully produce unprecedented mono- and bis-phenyl derivatives of functionality-rich 2,6-diphenylpyrimidine substrates at room temperature. The series of 19 substrates employed herein, which share the biologically-relevant 4-methyl-2,6-diphenylpyrimidine-5-carboxylate scaffold, were generated via a synthetic route involving (3-component) Biginelli condensation, oxidative dehydrogenation of the obtained 3,4-dihydropyrimidin-2(1H)-one to 2-hydroxypyrimidine, O-sulfonylation, and Suzuki-Miyaura C–C cross-coupling. Submission of these substrates to pyrimidine-N-atom-directed C–H arylation conditions led to regioselective phenylation at the ortho site(s) of the pyrimidine-C2-connected phenyl ring, revealing substituent-dependent electronic and steric effects. A focused library of 18 mono- and 10 bis-phenyl derivatives was generated. Its members exhibit interesting 3D and peripheral substitution features that render them promising for evaluation in drug discovery efforts.
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14
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15
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Li X, Sun K, Shen W, Zhang Y, Lu MZ, Luo X, Luo H. Rhodium(III)-Catalyzed Direct C-H Arylation of Various Acyclic Enamides with Arylsilanes. Org Lett 2021; 23:31-36. [PMID: 33337165 DOI: 10.1021/acs.orglett.0c03578] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The stereoselective β-C(sp2)-H arylation of various acyclic enamides with arylsilanes via Rh(III)-catalyzed cross-coupling reaction was illustrated. The methodology was characterized by extraordinary efficacy and stereoselectivity, a wide scope of substrates, good functional group tolerance, and the adoption of environmentally friendly arylsilanes. The utility of this present method was evidenced by the gram-scale synthesis and further elaboration of the product. In addition, Rh(III)-catalyzed C-H activation is considered to be the critical step in the reaction mechanism.
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Affiliation(s)
- Xiaolan Li
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Kai Sun
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Wenjuan Shen
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Yong Zhang
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Ming-Zhu Lu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Xuzhong Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
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16
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Li X, Zhang R, Qi Y, Zhao Q, Yao T. Rhodium( iii)-catalyzed C–H activation/annulation of N-iminopyridinium ylides with alkynes and diazo compounds. Org Chem Front 2021. [DOI: 10.1039/d0qo01333a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Rh(iii)-Catalyzed C–H activation/annulation of N-iminopyridinium ylides with alkynes and diazo compounds has been realized for the synthesis of isoquinolones and isocoumarins.
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Affiliation(s)
- Xiang Li
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
- Shaanxi Key Laboratory of Chemical Additives for Industry
| | - Ruihong Zhang
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
| | - Yaoting Qi
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
| | - Qing Zhao
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
| | - Tuanli Yao
- College of Chemistry and Chemical Engineering
- Shaanxi University of Science and Technology
- Xi'an
- China
- Shaanxi Key Laboratory of Chemical Additives for Industry
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17
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Mandal A, Bera R, Baidya M. Regioselective C-H Alkenylation and Unsymmetrical Bis-olefination of Heteroarene Carboxylic Acids with Ruthenium Catalysis in Water. J Org Chem 2021; 86:62-73. [PMID: 33251801 DOI: 10.1021/acs.joc.0c02215] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient weak carboxylate-assisted oxidative cross-dehydrogenative C-H/C-H coupling (CDC) of heteroarenes with readily available olefins has been devised employing water as green solvent under ruthenium(II) catalysis. The reaction is operationally simple, accommodates a large variety of heteroaromatic carboxylic acids as well as olefins, and facilitates a diverse array of high-value olefin-tethered heteroarenes in high yields (up to 87%). The potential of this ortho-C-H bond activation strategy has also been exploited toward tunable synthesis of densely functionalized heteroarenes through challenging unsymmetrical bis-olefination process in a one-pot sequential fashion. Mechanistic investigation demonstrates a reversible ruthenation process and C-H metalation step might not be involved in the rate-determining step.
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Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Ratnadeep Bera
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600 036, Tamil Nadu, India
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18
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Liu X, Liu Z, Xue Y, Li J, Zou D, Wu Y, Wu Y. Palladium-catalyzed direct Hiyama arylation of quinoxalin-2(1H)-ones with aryl siloxanes in water. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152612] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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19
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Abstract
The synthesis of substituted indoles has received great attention in the field of organic synthesis methodology. C–H activation makes it possible to obtain a variety of designed indole derivatives in mild conditions. Ruthenium catalyst, as one of the most significant transition-metal catalysts, has been contributing in the synthesis of indole scaffolds through C–H activation and C–H activation on indoles. Herein, we attempt to present an overview about the construction strategies of indole scaffold and site-specific modifications for indole scaffold via ruthenium-catalyzed C–H activations in recent years.
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20
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Sarkar W, Bhowmik A, Das S, Sulekha AB, Mishra A, Deb I. Iridium-catalyzed direct C-H arylation of cyclic N-sulfonyl ketimines with arylsiloxanes at ambient temperature. Org Biomol Chem 2020; 18:7074-7078. [PMID: 32691811 DOI: 10.1039/d0ob01212b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An iridium-catalyzed ortho-selective C-H arylation of cyclic N-sulfonyl ketimines has been achieved with environmentally benign aryl siloxanes. The reaction is highly efficient and proceeds at ambient temperature which is the key feature of the methodology considering the weak coordination nature of the substrate as well as the sluggish reactivity of siloxanes. A wide array of pharmaceutically relevant novel biaryls has been synthesized under operationally simple conditions.
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Affiliation(s)
- Writhabrata Sarkar
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Arup Bhowmik
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Sumit Das
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India. and Academy of Scientific and Innovative Research (AcSIR), India
| | - Aiswarya Balaram Sulekha
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Aniket Mishra
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Indubhusan Deb
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
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21
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Wu J, Qian B, Liu Y, Shang Y. Ruthenium(II)‐Catalyzed C‐H Annulation of Aromatic Acids with Alkynes Using Air as the Sole Oxidant in Water. ChemistrySelect 2020. [DOI: 10.1002/slct.202003022] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jiaping Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education) Anhui Key Laboratory of Molecular Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 China
| | - Baiyang Qian
- Key Laboratory of Functional Molecular Solids (Ministry of Education) Anhui Key Laboratory of Molecular Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 China
| | - Yanfei Liu
- Key Laboratory of Functional Molecular Solids (Ministry of Education) Anhui Key Laboratory of Molecular Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 China
| | - Yongjia Shang
- Key Laboratory of Functional Molecular Solids (Ministry of Education) Anhui Key Laboratory of Molecular Based Materials College of Chemistry and Materials Science Anhui Normal University Wuhu 241002 China
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22
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Zhang J, Liu Y, Jia Q, Wang Y, Ma Y, Szostak M. Ruthenium(II)-Catalyzed C–H Arylation of N,N-Dialkyl Thiobenzamides with Boronic Acids by Sulfur Coordination in 2-MeTHF. Org Lett 2020; 22:6884-6890. [DOI: 10.1021/acs.orglett.0c02410] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Ying Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Qiangqiang Jia
- State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
| | - Yue Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Michal Szostak
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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23
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Zhang X, Zhu P, Zhang R, Li X, Yao T. Visible-Light-Induced Decarboxylative Cyclization of 2-Alkenylarylisocyanides with α-Oxocarboxylic Acids: Access to 2-Acylindoles. J Org Chem 2020; 85:9503-9513. [PMID: 32600039 DOI: 10.1021/acs.joc.0c00039] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
An efficient and practical protocol for visible-light-induced decarboxylative cyclization of 2-alkenylarylisocyanides with α-oxocarboxylic acids has been developed, which afforded a broad range of 2-acylindoles in moderate to good yields. The reaction proceeds through a cascade of acyl radical addition/cyclization reactions under irradiation of an Ir3+ photoredox catalyst without external oxidants and features simple operation, scalability, a broad substrate scope, and good functional group tolerance.
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Affiliation(s)
- Xiaofei Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Peiyuan Zhu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Ruihong Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China
| | - Xiang Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
| | - Tuanli Yao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi 710021, China.,Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an 710021, China
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24
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Wang X, Zhang J, He Y, Chen D, Wang C, Yang F, Wang W, Ma Y, Szostak M. Ruthenium(II)-Catalyzed Ortho-C–H Alkylation of Naphthylamines with Diazo Compounds for Synthesis of 2,2-Disubstituted π-Extended 3-Oxindoles in Water. Org Lett 2020; 22:5187-5192. [DOI: 10.1021/acs.orglett.0c01811] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Xiaogang Wang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Jin Zhang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yuan He
- Technology Center, China Tobacco Shaanxi Industrial Co., Ltd., Baoji 721013, Shaanxi, China
| | - Di Chen
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
- School of Food and Biological Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Chao Wang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Fangzhou Yang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Weitao Wang
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Michal Szostak
- College of Chemistry and Chemical Engineering, Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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25
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Kitanosono T, Kobayashi S. Reactions in Water Involving the “On‐Water” Mechanism. Chemistry 2020; 26:9408-9429. [DOI: 10.1002/chem.201905482] [Citation(s) in RCA: 74] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/08/2020] [Indexed: 11/07/2022]
Affiliation(s)
- Taku Kitanosono
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo Bunkyo-ku Tokyo 113-0033 Japan
| | - Shū Kobayashi
- Department of ChemistrySchool of ScienceThe University of Tokyo Hongo Bunkyo-ku Tokyo 113-0033 Japan
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26
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Liu J, Fang Z, Liu X, Dou Y, Jiang J, Zhang F, Qu J, Zhu Q. Diastereoselective 2,3-diazidation of indoles via copper(II)-catalyzed dearomatization. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.10.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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27
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Pandey DK, Shabade AB, Punji B. Copper‐Catalyzed Direct Arylation of Indoles and Related (Hetero)arenes: A Ligandless and Solvent‐free Approach. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000312] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Dilip K. Pandey
- Organometallic Synthesis and Catalysis Group, Chemical Engineering DivisionCSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR)CSIR-NCL Pune 411 008 India
| | - Anand B. Shabade
- Organometallic Synthesis and Catalysis Group, Chemical Engineering DivisionCSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR)CSIR-NCL Pune 411 008 India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group, Chemical Engineering DivisionCSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR)CSIR-NCL Pune 411 008 India
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28
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Lu MZ, Ding X, Shao C, Hu Z, Luo H, Zhi S, Hu H, Kan Y, Loh TP. Direct Hiyama Cross-Coupling of (Hetero)arylsilanes with C(sp 2)-H Bonds Enabled by Cobalt Catalysis. Org Lett 2020; 22:2663-2668. [PMID: 32182081 DOI: 10.1021/acs.orglett.0c00631] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We report a chelation-assisted C-H arylation of various indoles with sterically and electronically diverse (hetero)arylsilanes enabled by cost-effective Cp*-free cobalt catalysis. Key to the success of this strategy is the judicious choice of copper(II) fluoride as a bifunctional sliane activator and catalyst reoxidant. This methodology features a broad substrate scope and good functional group compatibility. The synthetic versatility of this protocol has been highlighted by the gram-scale synthesis and late-stage diversification of biologically active molecules.
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Affiliation(s)
- Ming-Zhu Lu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Xin Ding
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Changdong Shao
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Zhengsong Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University, Ganzhou 341000, China
| | - Sanjun Zhi
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Huayou Hu
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Yuhe Kan
- Jiangsu Key Laboratory for Chemistry of Low-Dimensional Materials, School of Chemistry and Chemical Engineering, Huaiyin Normal University, Huaian 223300, China
| | - Teck-Peng Loh
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
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29
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Petrini M. New Perspectives in the Indole Ring Functionalization using 2‐Indolylmethanols. Adv Synth Catal 2020. [DOI: 10.1002/adsc.201901245] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Marino Petrini
- School of Science and TechnologyChemistry Division, Università di Camerino via S. Agostino 1 62032 Camerino Italy
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30
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Li X, Zhang R, Zhang X, Zhu P, Yao T. Silver-Catalyzed Decarboxylative Allylation of Difluoroarylacetic Acids with Allyl Sulfones in Water. Chem Asian J 2020; 15:1175-1179. [PMID: 32056375 DOI: 10.1002/asia.202000059] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/11/2020] [Indexed: 11/07/2022]
Abstract
A practical silver-catalyzed decarboxylative allylation of α,α-difluoroarylacetic acids with allyl sulfones is described, which provides a variety of β,β-difluorinated alkenes in good yields. Notably, the reaction proceeds smoothly in water with good functional group tolerance. The practicality and synthetic value of this process was demonstrated by scaled-up experiment and elaboration of the products via reduction or Heck reaction. Primary mechanism investigations suggest that a radical process might be involved.
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Affiliation(s)
- Xiang Li
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Ruihong Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Xiaofei Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Peiyuan Zhu
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
| | - Tuanli Yao
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi'an, Shaanxi, 710021, China
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31
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Chen Z, Kong X, Xu B. Rh(III)‐Catalyzed C−H Acylmethylation of 6‐Arylpurines Using Sulfoxonium Ylides as Carbene Precursors. ChemistrySelect 2020. [DOI: 10.1002/slct.201904754] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhibing Chen
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Xianqiang Kong
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
| | - Bo Xu
- Key Laboratory of Science and Technology of Eco-Textiles, Ministry of Education, College of Chemistry, Chemical Engineering and Biotechnology Donghua University Shanghai 201620 China
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32
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Du K, Yao T. The C-H activated controlled mono- and di-olefination of arenes in ionic liquids at room temperature. RSC Adv 2020; 10:3203-3211. [PMID: 35497718 PMCID: PMC9048982 DOI: 10.1039/c9ra09736h] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 12/29/2019] [Indexed: 01/08/2023] Open
Abstract
In this study, controlled mono and di-olefination of arenes was first realized at room temperature via the C-H bond activation in ionic liquids, probably due to the positive effects of ionic liquids. It is an energy-saving routes in industrial production without the need for heating equipment. Different catalysts were screened, and it was found that [Ru(p-cymene)Cl2]2 generated mono-olefinated products predominantly while [Cp*RhCl2]2 selectively gave di-olefinated products. These catalysts ([BMIM]NTf2 and [BMIM]PF6) as green and recyclable reaction media are highly efficient under mild conditions. This reaction process can avoid any volatile and environmentally toxic organic solvents, and is much safer without the need for pressure-tight equipment. A wide substrate scope with good yields and satisfactory selectivity was achieved. The reactions can be scaled up to gram-scale. Furthermore, an expensive rhodium/ruthenium catalytic system was recycled for at least 6 times with consistently high catalytic activity, which was economical and environmental friendly from an industrial point of view. According to the mechanistic study, the C-H bond cleavage was probably achieved via the concerted metalation-deprotonation. This technique can be applied in the synthesis of various valuable unsaturated aromatic compounds and shows a great potential for industrial production.
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Affiliation(s)
- Kaifeng Du
- Department of Pharmaceutical & Biological Engineering, School of Chemical Engineering, Sichuan University Chengdu 610065 P. R. China
| | - Tian Yao
- Key Laboratory of Drug-Targeting and Drug Delivery System of the Education Ministry and Sichuan Province, West China School of Pharmacy, Sichuan University Chengdu 610041 P. R. China
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33
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Zhou J, Mao Z, Pan H, Zhang X. Pd-Catalyzed highly selective and direct ortho C–H arylation of pyrrolo[2,3-d]pyrimidine derivatives. Org Chem Front 2020. [DOI: 10.1039/c9qo01312a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Pd-Catalyzed one-pot direct ortho C–H arylation of pyrrolo[2,3-d]pyrimidine derivatives is reported. This protocol provides a variety of biphenyl-containing pyrrolo[2,3-d]pyrimidines in good to excellent yields.
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Affiliation(s)
- Jing Zhou
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Zhengtong Mao
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Haokun Pan
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xingxian Zhang
- College of Pharmaceutical Science
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
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34
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Sarkar R, Mukhopadhyay C. Carbon-Hydrogen Bond Functionalization in Aqueous Medium: A Brief Review. CURRENT GREEN CHEMISTRY 2019. [DOI: 10.2174/2213346106666191019120048] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In the last few decades, considerable research has led to the introduction of selective and
efficient green as well as sustainable synthetic methods of functionalization of carbon-hydrogen bonds
to form new carbon-carbon and carbon-heteroatom bonds. In this emerging field, significant development
has been attained under various environmentally benign conditions including aqueous medium.
In this review, we have summarized the current development of C-H functionalization carried out in
an aqueous medium and its synthetic applications according to carbon-carbon and carbon-heteroatom
bond formations under green conditions.
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Affiliation(s)
- Rajib Sarkar
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
| | - Chhanda Mukhopadhyay
- Department of Chemistry, University of Calcutta, 92 APC Road, Kolkata-700009, India
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35
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Jadhav PP, Kahar NM, Dawande SG. Ruthenium(II) Catalysed Highly Regioselective C-3 Alkenylation of Indolizines and Pyrrolo[1,2-a
]quinolines. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901471] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Pankaj Pandit Jadhav
- Department of Chemistry; Institute of Chemical Technology; Nathalal Parekh Marg 400019 Matunga (East) Mumbai Maharashtra India
| | - Nilesh Machhindra Kahar
- Department of Chemistry; Institute of Chemical Technology; Nathalal Parekh Marg 400019 Matunga (East) Mumbai Maharashtra India
| | - Sudam Ganpat Dawande
- Department of Chemistry; Institute of Chemical Technology; Nathalal Parekh Marg 400019 Matunga (East) Mumbai Maharashtra India
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36
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Pandey DK, Vijaykumar M, Punji B. Nickel-Catalyzed C(2)-H Arylation of Indoles with Aryl Chlorides under Neat Conditions. J Org Chem 2019; 84:12800-12808. [PMID: 31321982 DOI: 10.1021/acs.joc.9b01375] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Nickel-catalyzed regioselective C(2)-H arylation of indoles and pyrroles with aryl chlorides is achieved under neat conditions. This method allows the efficient coupling of diverse aryl chlorides employing a user-friendly and inexpensive Ni(OAc)2/dppf catalyst system at 80 °C. Numerous functionalities, such as halides, alkyl ether, fluoro-alkyl ether, and thioether, and substituted amines, including heteroarenes like benzothiazolyl, pyrrolyl, indolyl, and carbazolyl, are well tolerated under the reaction conditions. The preliminary mechanistic study highlights a single-electron transfer (SET) pathway for the arylation reaction.
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Affiliation(s)
- Dilip K Pandey
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division , Academy of Scientific and Innovative Research (AcSIR) , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India
| | - Muniyappa Vijaykumar
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division , Academy of Scientific and Innovative Research (AcSIR) , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group, Chemical Engineering Division , Academy of Scientific and Innovative Research (AcSIR) , CSIR-National Chemical Laboratory (CSIR-NCL) , Dr. Homi Bhabha Road , Pune 411 008 , Maharashtra , India
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37
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Kumar A, Muniraj N, Prabhu KR. Manganese‐Catalysed C−H Activation: A Regioselective C−H Alkenylation of Indoles and other (hetero)aromatics with 4‐Hydroxy‐2‐Alkynoates Leading to Concomitant Lactonization. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900678] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Anil Kumar
- Department of Organic chemistryIndian Institute of Science Bangalore 560 012 Karnataka India
| | - Nachimuthu Muniraj
- Department of Organic chemistryIndian Institute of Science Bangalore 560 012 Karnataka India
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38
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Subhedar DD, Mishra AA, Bhanage BM. N
‐Methoxybenzamide: A Versatile Directing Group for Palladium‐, Rhodium‐ and Ruthenium‐Catalyzed C−H Bond Activations. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900405] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
| | - Ashish A. Mishra
- Department of ChemistryInstitute of Chemical Technology, Matunga Mumbai 400019 India
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39
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Zhao Q, Zhang J, Szostak M. Ruthenium(0)-Catalyzed Cross-Coupling of Anilines with Organoboranes by Selective Carbon–Nitrogen Cleavage. ACS Catal 2019. [DOI: 10.1021/acscatal.9b02440] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Qun Zhao
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Jin Zhang
- College of Chemistry and Chemical Engineering and Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, China
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Michal Szostak
- College of Chemistry and Chemical Engineering and Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry, Ministry of Education, Shaanxi University of Science and Technology, Xi’an 710021, China
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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40
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Ghaderi A, Iwasaki T, Kambe N. Pivalic Acid‐Assisted Rh(III)‐Catalyzed C−H Functionalization of 2‐Arylpyridine Derivatives Using Arylsilanes. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900362] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Arash Ghaderi
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
- Department of ChemistryCollege of SciencesUniversity of Hormozgan Bandar Abbas 71961 Iran
| | - Takanori Iwasaki
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
- Department of Chemistry and BiotechnologyGraduate School of EngineeringThe University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-8656 Japan
| | - Nobuaki Kambe
- Department of Applied ChemistryGraduate School of EngineeringOsaka University Suita Osaka 565-0871 Japan
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41
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Luo H, Xie Q, Sun K, Deng J, Xu L, Wang K, Luo X. Rh(iii)-catalyzed C-7 arylation of indolines with arylsilanes via C-H activation. RSC Adv 2019; 9:18191-18195. [PMID: 35515217 PMCID: PMC9064675 DOI: 10.1039/c9ra04142g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2019] [Accepted: 06/04/2019] [Indexed: 02/06/2023] Open
Abstract
Site-selective synthesis of C-7 arylated indolines has been achieved via oxidative arylation of indolines with arylsilanes under Rh(iii)-catalyzed C-H activation of indolines by using CuSO4 as a co-oxidant. This transformation has been explored for a wide range of substrates under mild conditions.
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Affiliation(s)
- Haiqing Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
| | - Qi Xie
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
| | - Kai Sun
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
| | - Jianbo Deng
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
| | - Lin Xu
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
| | - Kejun Wang
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
| | - Xuzhong Luo
- Department of Chemistry & Chemical Engineering, Gannan Normal University Ganzhou 341000 China
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42
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Yang P, Xu W, Wang R, Zhang M, Xie C, Zeng X, Wang M. Potassium tert-Butoxide-Mediated Condensation Cascade Reaction: Transition Metal-Free Synthesis of Multisubstituted Aryl Indoles and Benzofurans. Org Lett 2019; 21:3658-3662. [PMID: 31025566 DOI: 10.1021/acs.orglett.9b01093] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient and facile method to synthesize valuable disubstituted 2-aryl indoles and benzofurans in good yields has been demonstrated, based on a tert-butoxide-mediated condensation reaction involving a vinyl sulfoxide intermediate. Products are obtained from N- or O-benzyl benzaldehydes using dimethyl sulfoxide as a carbon source. The methodology features a wide functional group tolerance and transition metal-free environment. Preliminary mechanistic studies suggest that the reaction involves a tandem aldol reaction/Michael addition/dehydrosulfenylation/isomerization sequence through an ionic protocol.
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Affiliation(s)
- Pengfei Yang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Weiyan Xu
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Rongchao Wang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Min Zhang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Chunsong Xie
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Xiaofei Zeng
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
| | - Min Wang
- College of Materials, Chemistry and Chemical Engineering , Hangzhou Normal University , Hangzhou 311121 , P. R. China
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43
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Zhang L, Chen J, Chen J, Jin L, Zheng X, Jiang X, Yu C. Synthesis of 2-substituted indoles by iridium (III)-catalyzed C H functionalization of N-phenylpyridin-2-amines. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.027] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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44
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Abstract
The past decades have witnessed rapid development in organic synthesis via catalysis, particularly the reactions through C–H bond functionalization. Transition metals such as Pd, Rh and Ru constitute a crucial catalyst in these C–H bond functionalization reactions. This process is highly attractive not only because it saves reaction time and reduces waste,but also, more importantly, it allows the reaction to be performed in a highly region specific manner. Indeed, several organic compounds could be readily accessed via C–H bond functionalization with transition metals. In the recent past, tremendous progress has been made on C–H bond functionalization via ruthenium catalysis, including less expensive but more stable ruthenium(II) catalysts. The ruthenium-catalysed C–H bond functionalization, viz. arylation, alkenylation, annulation, oxygenation, and halogenation involving C–C, C–O, C–N, and C–X bond forming reactions, has been described and presented in numerous reviews. This review discusses the recent development of C–H bond functionalization with various ruthenium-based catalysts. The first section of the review presents arylation reactions covering arylation directed by N–Heteroaryl groups, oxidative arylation, dehydrative arylation and arylation involving decarboxylative and sp3-C–H bond functionalization. Subsequently, the ruthenium-catalysed alkenylation, alkylation, allylation including oxidative alkenylation and meta-selective C–H bond alkylation has been presented. Finally, the oxidative annulation of various arenes with alkynes involving C–H/O–H or C–H/N–H bond cleavage reactions has been discussed.
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45
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Li C, Xie Y, Xiao F, Huang H, Deng GJ. Regioselective three-component synthesis of 1,2-diarylindoles from cyclohexanones, α-hydroxyketones and anilines under transition-metal-free conditions. Chem Commun (Camb) 2019; 55:4079-4082. [DOI: 10.1039/c9cc00943d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A facile method for the one-pot synthesis of 1,2-diarylindoles under transition-metal-free conditions is described.
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Affiliation(s)
- Cheng Li
- 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
| | - Yanjun Xie
- College of Chemistry and Chemical Engineering
- Hunan Institute of Engineering
- Xiangtan 411104
- China
| | - Fuhong Xiao
- 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
| | - 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
| | - 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
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46
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Zhao Q, Zhang J, Szostak M. Ruthenium(0)-sequential catalysis for the synthesis of sterically hindered amines by C–H arylation/hydrosilylation. Chem Commun (Camb) 2019; 55:9003-9006. [DOI: 10.1039/c9cc04072b] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report sequential ruthenium(0)-catalysis for the synthesis of sterically-hindered amines via direct C–H arylation of simple imines and imine hydrosilylation.
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Affiliation(s)
- Qun Zhao
- Department of Chemistry
- Rutgers University
- Newark
- USA
| | - Jin Zhang
- College of Chemistry and Chemical Engineering and Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry
- Ministry of Education
- Shaanxi University of Science and Technology
- Xi’an 710021
- China
| | - Michal Szostak
- College of Chemistry and Chemical Engineering and Key Laboratory of Auxiliary Chemistry and Technology for Chemical Industry
- Ministry of Education
- Shaanxi University of Science and Technology
- Xi’an 710021
- China
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47
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Wu W, Fang S, Jiang G, Li M, Jiang H. Palladium-catalyzed regioselective C–H alkynylation of indoles with bromoalkynes in water. Org Chem Front 2019. [DOI: 10.1039/c8qo01261j] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
A palladium-catalyzed regioselective C(sp2)–H alkynylation between indoles and bromoalkynes in water has been developed, affording diverse functionalized 2-alkynylindoles in good yields.
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Affiliation(s)
- Wanqing Wu
- State Key Laboratory of Luminescent Materials and Devices
- South China University of Technology
- Guangzhou 510640
- China
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
| | - Songjia Fang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Guangbin Jiang
- Key Laboratory of Functional Molecular Engineering of Guangdong Province
- School of Chemistry and Chemical Engineering
- South China University of Technology
- Guangzhou 510640
- China
| | - Meng Li
- 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
- 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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48
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Gou XY, Li Y, Wang XG, Liu HC, Zhang BS, Zhao JH, Zhou ZZ, Liang YM. Ruthenium-catalyzed ortho-selective CAr–H amination of heteroaryl arenes with di-tert-butyldiaziridinone. Chem Commun (Camb) 2019; 55:5487-5490. [DOI: 10.1039/c9cc02499a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Application of an oxidative amination reagent (di-tert-butyldiaziridinone) to the Ru3(CO)12-catalyzed ortho-selective CAr–H amination reaction is described.
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Affiliation(s)
- Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation
- Chinese University of Hong Kong
- Shatin
- China
| | - Xin-Gang Wang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Bo-Sheng Zhang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jia-Hui Zhao
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhao-Zhao Zhou
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
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49
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Zhang J, Hou Y, Ma Y, Szostak M. Synthesis of Amides by Mild Palladium-Catalyzed Aminocarbonylation of Arylsilanes with Amines Enabled by Copper(II) Fluoride. J Org Chem 2018; 84:338-345. [DOI: 10.1021/acs.joc.8b02874] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yanyan Hou
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Shaanxi University of Science and Technology, Xi’an 710021, China
- Shaanxi Key Laboratory of Chemical Additives for Industry, Shaanxi University of Science and Technology, Xi’an 710021, China
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, United States
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50
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Xu C, Xu J. Oxygenophilic Lewis Acid Promoted Synthesis of 2-Arylindoles from Anilines and Cyanoepoxides in Alcohol. J Org Chem 2018; 83:14733-14742. [DOI: 10.1021/acs.joc.8b02203] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Chuangchuang Xu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
| | - Jiaxi Xu
- State Key Laboratory of Chemical Resource Engineering, Department of Organic Chemistry, Faculty of Science, Beijing University of Chemical Technology, Beijing 100029, People’s Republic of China
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