1
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Mandal S, Phukan KP, Basumatary J, Roy BG. Metal-Free Visible-Light Catalytic Deoxygenation of Azaaryl N-Oxides: Harnessing Photons for Efficient Greener Synthesis. Chem Asian J 2024:e202400147. [PMID: 38577789 DOI: 10.1002/asia.202400147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/21/2024] [Accepted: 04/04/2024] [Indexed: 04/06/2024]
Abstract
Regio- and chemo-selective functionalization of electron deficient azaarenes often required their transformations to corresponding N-oxides and subsequent removal of oxygen after functionalization to get back the desired substituted azaarenes. An efficient metal-free visible-light photo-redox catalytic deoxygenation of N-oxides of azaheterocyclic compounds has been developed using acridinium based organo-photocatalyst in blue LED light. High efficiency and mildness of this methodology has been demonstrated through higher deoxygenation yield of wide variety of azaheterocyclic N-oxides with reactive functional groups. Robustness of the photocatalytic reduction has been demonstrated through easy scaling-up of the reaction to gram level without much change in the reaction yield.
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Affiliation(s)
- Susanta Mandal
- Department of Chemistry, Sikkim University, 6th Mile, Tadong, Gangtok, Sikkim, 737102, India
| | - Kimron Protim Phukan
- Department of Chemistry, Sikkim University, 6th Mile, Tadong, Gangtok, Sikkim, 737102, India
| | - Joneswar Basumatary
- Department of Chemistry, Sikkim University, 6th Mile, Tadong, Gangtok, Sikkim, 737102, India
| | - Biswajit Gopal Roy
- Department of Chemistry, Sikkim University, 6th Mile, Tadong, Gangtok, Sikkim, 737102, India
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2
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Guan X, Li WJ, Shuai MS, Zhang M, Zhou CC, Fu XZ, Yang YY, Zhou M, He B, Zhao YL. Rh(III)-Catalyzed C7-Alkylation of Isatogens with Malonic Acid Diazoesters. J Org Chem 2024; 89:2984-2995. [PMID: 38334453 DOI: 10.1021/acs.joc.3c02405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Rh(III)-catalyzed C7-alkylation of isatogens (indolin-3-one N-oxides) with malonic acid diazoesters has been developed. This strategy utilizes oxygen anion on the N-oxide group of isatogens as a directing group and successfully achieves the synthesis of a series of C7-alkylated isatogens with moderate to good yields (48-86% yields). Moreover, the N-oxides of isatogens can not only serve as the simple directing group for C7-H bond cleavage but also be deoxidized for easy removal.
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Affiliation(s)
- Xiang Guan
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Wen-Jie Li
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Ming-Shan Shuai
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Mao Zhang
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Chao-Chao Zhou
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Xiao-Zhong Fu
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yuan-Yong Yang
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Meng Zhou
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Bin He
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yong-Long Zhao
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
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3
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Tian H, Hou T, Yang X, Xu H, Dong Y. Cp*Ir III-Catalyzed C 8-Selective C-H Activation Enables Room-Temperature Direct Arylation of Quinoline N-Oxides with Arylsilanes. J Org Chem 2023; 88:16365-16375. [PMID: 37948572 DOI: 10.1021/acs.joc.3c01869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The Cp*Ir-catalyzed C8-selective arylation of quinoline N-oxides with arylsilanes is developed. This C-H activation transformation can be carried out under mild reaction conditions in good yields with a broad substrate scope and excellent functional-group tolerance. This protocol can be easily used to synthesize diverse quinoline derivatives and enable the late-stage modification of quinoline drugs. A plausible reaction mechanism is elucidated based on a series of preliminary mechanistic studies.
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Affiliation(s)
- Hua Tian
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Tingting Hou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Xin Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Heng Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Yi Dong
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
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4
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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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5
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Wang Y, Ban Y, Wang B, Li H, Gong C, Wang Y, Wang F, Li D, Yang J. Cp*Rh(III)-Catalyzed C-H Arylation of Ferrocenethionamides with Aryl Boronic Acids for the Synthesis of Aryl-Ferrocenes. Chem Asian J 2023; 18:e202201180. [PMID: 36495085 DOI: 10.1002/asia.202201180] [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: 11/21/2022] [Revised: 12/09/2022] [Accepted: 12/09/2022] [Indexed: 12/14/2022]
Abstract
We developed a Cp*Rh(III)-catalyzed C-H arylation of ferrocenethionamides with arylboronic acids for the synthesis of aryl-ferrocenes under mild and base-free conditions, using Ag2 CO3 as oxidant. The reaction results in high yields and excellent regioselectivity accommodating a broad scope of substrate range and functional group compatibility, and provides an alternative protocol for the generation of highly functionalized aryl-ferrocene compounds.
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Affiliation(s)
- Yingxin Wang
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Yan Ban
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Bosen Wang
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Hao Li
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Chengwei Gong
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Yan Wang
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Fuqiang Wang
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Dianjun Li
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
| | - Jinhui Yang
- State Key Laboratory of High-Efficiency Utilization of, Coal and Green Chemical Engineering, School of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, P. R. China
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6
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Singha K, Habib I, Hossain M. Quinoline N‐Oxide: A Versatile Precursor in Organic Transformations. ChemistrySelect 2022. [DOI: 10.1002/slct.202203537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Koustav Singha
- Synthetic Organic Research Laboratory UGC-Human Resource Development Centre (Chemistry) University of North Bengal Siliguri Darjeeling 734013 India
| | - Imran Habib
- Synthetic Organic Research Laboratory UGC-Human Resource Development Centre (Chemistry) University of North Bengal Siliguri Darjeeling 734013 India
| | - Mossaraf Hossain
- Synthetic Organic Research Laboratory UGC-Human Resource Development Centre (Chemistry) University of North Bengal Siliguri Darjeeling 734013 India
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7
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Chandra D, Manisha, Sharma U. Recent Advances in the High-Valent Cobalt-Catalyzed C-H Functionalization of N-Heterocycles. CHEM REC 2021; 22:e202100271. [PMID: 34932274 DOI: 10.1002/tcr.202100271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/21/2021] [Indexed: 12/18/2022]
Abstract
Direct functionalization of heterocycles using C-H activation widely relies on the precious metal complexes. In past decade, the use of earth abundant and inexpensive transition metal to functionalize heterocycles has become an attractive alternate strategy. This concept is also interesting due to the unique reactivity pattern of these inexpensive metals. In this context we and other research groups have utilized the high-valent cobalt complexes as an inexpensive and readily available catalyst for the functionalization of heterocycles. In this review, we intend to brief recent progress made in the area of high-valent cobalt complexes catalyzed C-H functionalization of N-containing heterocycles.
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Affiliation(s)
- Devesh Chandra
- Chemical Technology Division, CSIR-IHBT, Palampur, HP 176 061, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Manisha
- Chemical Technology Division, CSIR-IHBT, Palampur, HP 176 061, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Upendra Sharma
- Chemical Technology Division, CSIR-IHBT, Palampur, HP 176 061, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
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8
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Gupta SS, Manisha, Kumar R, Dhiman AK, Sharma U. Predictable site-selective functionalization: Promoter group assisted para-halogenation of N-substituted (hetero )aromatics under metal-free condition. Org Biomol Chem 2021; 19:9675-9687. [PMID: 34730171 DOI: 10.1039/d1ob02000e] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Herein, regioselective para-C-H halogenation of N-pyrimidyl (hetero)aromatics through SEAr (electrophilic aromatic substitution) type reaction is disclosed. SEAr type reaction has been utilized for the C5-bromination of indolines (para-selective) with N-bromosuccinimide under metal and additive-free conditions in good to excellent yields. The developed methodology is also applicable for iodination and challenging chlorination. The pyrimidyl group is identified as a reactivity tuner that also controls the regioselectivity. The present method is also applicable for selective halogenation of aniline, pyridine, indole, oxindole, pyrazole, tetrahydroquinoline, isoquinoline, and carbazole. DFT studies such as Fukui nucleophilicity and natural charge maps also support the observed p-selectivity. Post-functionalization of the title compound into the corresponding arylated, olefinated, and dihalogenated products is achieved in a one-pot, two-step fashion. Late-stage C-H bromination was also executed on drug/natural molecules (harmine, etoricoxib, clonidine, and chlorzoxazone) to demonstrate the applicability of the developed protocol.
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Affiliation(s)
- Shiv Shankar Gupta
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Manisha
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Rakesh Kumar
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India. .,Wydział Chemii, Uniwersytet Wrocławski, 50-383 Wrocław, Poland
| | - Ankit Kumar Dhiman
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
| | - Upendra Sharma
- Chemical Technology Division, CSIR-Institute of Himalayan Bioresource and Technology, Palampur 176061, India. .,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad-201002, India
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9
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Prabagar B, Yang Y, Shi Z. Site-selective C-H functionalization to access the arene backbone of indoles and quinolines. Chem Soc Rev 2021; 50:11249-11269. [PMID: 34486584 DOI: 10.1039/d0cs00334d] [Citation(s) in RCA: 79] [Impact Index Per Article: 26.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The site-selective C-H bond functionalization of heteroarenes can eventually provide chemists with great techniques for editing and building complex molecular scaffolds. During the past decade, benzo-fused N-heterocycles such as indoles and quinolines have been among the most widely investigated organic templates. Early developments have led to site-selective C-H bond functionalization on the pyrrole and pyridine cores of indoles and quinolines; however, C-H functionalization on the benzenoid ring has remained a great challenge in catalysis. In this review, we elaborate on recent developments in the highly challenging functionalization of C-H bonds on the less-reactive benzenoid core of indoles and quinolines. These findings are mainly described as selective directing group assisted strategies, remote C-H functionalization techniques and their reaction mechanisms. The underlying principle in each strategy is elucidated, which aims to facilitate the design of a more advanced structure of heterocycles based on bioactive molecules, synthetic drugs, and material aspects. Moreover, the challenges and perspectives for catalytic C-H functionalization to access the arene backbone of indoles and quinolines are also proposed in the conclusion section.
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Affiliation(s)
- B Prabagar
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Youqing Yang
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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10
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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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11
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Nandhini S, Dharani S, Elamathi C, Dallemer F, Prabhakaran R. Synthesis of tetranuclear complex of Pd(II) with thiosemicarbazone ligands derived from 2‐quinolone and its catalytic evaluation in Suzuki–Miyaura‐type coupling reactions and alkoxylation of chloroquinolines. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6436] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Sundar Nandhini
- Department of Chemistry Bharathiar University Coimbatore India
| | | | | | - Frederic Dallemer
- Laboratoire MADIREL CNRS UMR7246 Universite of Aix‐Marseille Marseille France
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12
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Nale SD, Aslam M, Lee YR. Installation of Diverse Succinimides at C‐8 Position of Quinoline
N
‐Oxides via Rhodium(III)‐Catalyzed C−H Functionalization. ChemistrySelect 2021. [DOI: 10.1002/slct.202102832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Sagar D. Nale
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
| | - Mohammad Aslam
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
| | - Yong Rok Lee
- School of Chemical Engineering Yeungnam University Gyeongsan 38541 Republic of Korea
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13
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Carvalho RL, Almeida RG, Murali K, Machado LA, Pedrosa LF, Dolui P, Maiti D, da Silva Júnior EN. Removal and modification of directing groups used in metal-catalyzed C–H functionalization: the magical step of conversion into ‘conventional’ functional groups. Org Biomol Chem 2021; 19:525-547. [DOI: 10.1039/d0ob02232b] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This feature review is focused on recent approaches for removing versatile directing groups.
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Affiliation(s)
- Renato L. Carvalho
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Renata G. Almeida
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Karunanidhi Murali
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | - Luana A. Machado
- Institute of Exact Sciences
- Department of Chemistry
- Federal University of Minas Gerais
- Belo Horizonte
- Brazil
| | | | - Pravas Dolui
- Department of Chemistry
- IIT Bombay
- Mumbai 400076
- India
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14
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Dhiman AK, Thakur A, Kumar R, Sharma U. Rhodium‐Catalyzed Selective C−H Bond Functionalization of Quinolines. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000341] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ankit K. Dhiman
- Chemical Technology Division and AcSIR CSIR-Institute of Himalayan Bioresource Technology Palampur India
| | - Ankita Thakur
- Chemical Technology Division and AcSIR CSIR-Institute of Himalayan Bioresource Technology Palampur India
| | - Rakesh Kumar
- Chemical Technology Division and AcSIR CSIR-Institute of Himalayan Bioresource Technology Palampur India
| | - Upendra Sharma
- Chemical Technology Division and AcSIR CSIR-Institute of Himalayan Bioresource Technology Palampur India
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15
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Parmar D, Kumar R, Kumar R, Sharma U. Ru(II)-Catalyzed Chemoselective C(sp3)–H Monoarylation of 8-Methyl Quinolines with Arylboronic Acids. J Org Chem 2020; 85:11844-11855. [DOI: 10.1021/acs.joc.0c01603] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Diksha Parmar
- Chemical Technology Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Rohit Kumar
- Chemical Technology Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Rakesh Kumar
- Chemical Technology Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Upendra Sharma
- Chemical Technology Division and AcSIR, CSIR-IHBT, Palampur 176061, India
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