1
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Kachore A, Aggarwal V, Bala E, Singh H, Guleria S, Sharma S, Pathan S, Saima, Selvaraj M, Assiri MA, Kumar Verma P. Recent Advances in Direct Regioselective C-H Chlorination at Aromatic and Aliphatic. Chem Asian J 2024:e202400391. [PMID: 38825568 DOI: 10.1002/asia.202400391] [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: 04/22/2024] [Revised: 05/31/2024] [Accepted: 05/31/2024] [Indexed: 06/04/2024]
Abstract
Direct installation of key functionalities in a molecule through C-H bond activation is one of the thrust areas as well as challenging task in organic synthesis. Particularly, introduction of chlorine in a molecule imparts additional benefits for further functionalizations as well as improves the electronic behaviour such as lipophilicity and polarity towards drug development process. The chlorinated molecules have also been established as efficient biologically relevant scaffolds. Current manuscript has been focused on the direct installation of the chlorine atom at various aromatic and aliphatic positions to produce functional molecules. The key highlight of the manuscript belongs to the site selectivity (regioselectivity) for the installation of chlorine functionality. Manuscript describes the advanced methods developed for the direct C-H chlorination reactions and further simplified for the chlorination reactions at various positions including aromatic (o-, m-, and p-), benzylic, heteroaromatic, and aliphatic positions. Directing groups (DGs) and the coordination with the catalyst is the key for the enhancement of regioselectivities during direct C-H chlorination reactions.
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Affiliation(s)
- Ankit Kachore
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Varun Aggarwal
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Ekta Bala
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Hemant Singh
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Saksham Guleria
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Sakshi Sharma
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Sameer Pathan
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Saima
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
| | - Manickam Selvaraj
- Department of Chemistry, Faculty of Science, King Khalid University, PO Box 9004, 61413, Abha, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, PO Box 9004, Abha, 61413, Saudi Arabia
| | - Mohammed A Assiri
- Department of Chemistry, Faculty of Science, King Khalid University, PO Box 9004, 61413, Abha, Saudi Arabia
- Research Centre for Advanced Materials Science (RCAMS), King Khalid University, PO Box 9004, Abha, 61413, Saudi Arabia
| | - Praveen Kumar Verma
- School of Advanced Chemical Sciences, Shoolini University of Biotechnology and Management Sciences, 173229, Solan, H.P., India
- Department of Oral and Maxillofacial Surgery, Saveetha Dental College and Hospitals, SIMATS, Saveetha University, 600077, Chennai, Tamil Nadu, India
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2
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Wang N, Chi Z, Wang X, Gao Z, Li S, Li G. Formal C-H/C-I Metathesis: Site-Selective C-H Iodination of Anilines Using Aryl Iodides. Org Lett 2022; 24:3657-3662. [PMID: 35576322 DOI: 10.1021/acs.orglett.2c01283] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Functional group metathesis has the potential to render mild reaction conditions for C-H functionalization. Protocols for the meta- and ortho-C-H iodination of aniline derivatives via formal C(sp2)-H/C(sp2)-I metathesis using 2-nitrophenyl iodides as mild iodinating reagents are reported herein. These protocols led to the production of a range of valuable iodinated aniline derivatives. These results demonstrate the potential of developing novel site-selective C-H activation reactions with electron-rich compounds, since mild reagents can often been utilized in functional group metathesis reactions.
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Affiliation(s)
- Ning Wang
- College of Chemical Engineering, Fuzhou University, Fuzhou, Fujian 350002, China.,Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zhuomin Chi
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Xinchao Wang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Zezhong Gao
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China
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3
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Wang Y, Simon H, Chen X, Lin Z, Chen S, Ackermann L. Distal Ruthenaelectro-Catalyzed meta-C-H Bromination with Aqueous HBr. Angew Chem Int Ed Engl 2022; 61:e202201595. [PMID: 35172030 PMCID: PMC9310730 DOI: 10.1002/anie.202201595] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Indexed: 12/13/2022]
Abstract
While electrochemical ortho‐selective C−H activations are well established, distal C−H activations continue to be underdeveloped. In contrast, we herein describe the electrochemical meta‐C−H functionalization. The remote C−H bromination was accomplished in an undivided cell by RuCl3⋅3 H2O with aqueous HBr. The electrohalogenation proceeded under exogenous ligand‐ and electrolyte‐free conditions. Notably, pyrazolylarenes were meta‐selectively brominated at the benzenoid moiety, rather than on the electron‐rich pyrazole ring for the first time. Mechanistic studies were suggestive of an initial ruthenacycle formation, and a subsequent ligand‐to‐ligand hydrogen transfer (LLHT) process to liberate the brominated product.
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Affiliation(s)
- Yulei Wang
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Hendrik Simon
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Xinran Chen
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany.,Department of Chemistry, Zhejiang University, Hangzhou, 310027, China
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Shan Chen
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie and Wöhler Research Institute for Sustainable Chemistry (WISCh), Georg-August-Universität, Tammanstraße 2, 37077, Göttingen, Germany
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4
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Wang Y, Simon H, Chen X, Lin Z, Chen S, Ackermann L. Distale Ruthenaelektro‐katalysierte
meta
‐C−H‐Bromierung mit wässriger HBr. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yulei Wang
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Hendrik Simon
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Xinran Chen
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
- Institut für Chemie Zhejiang Universität Hangzhou 310027 China
| | - Zhipeng Lin
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Shan Chen
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie und Wöhler Research Institute for Sustainable Chemistry (WISCh) Georg-August-Universität Tammanstraße 2 37077 Göttingen Deutschland
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5
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Wang H, Fu L, Zhou C, Li G. Pd( ii)-catalyzed meta-C–H bromination and chlorination of aniline and benzoic acid derivatives. Chem Sci 2022; 13:8686-8692. [PMID: 35974770 PMCID: PMC9337732 DOI: 10.1039/d2sc01834a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/04/2022] [Indexed: 12/02/2022] Open
Abstract
The classic electrophilic bromination leads to ortho- and para-bromination of anilines due to their electron-rich properties. Herein we report the development of an unprecedented Pd-catalyzed meta-C–H bromination of aniline derivatives using commercially available N-bromophthalimide (NBP), which overcomes the competing ortho/para-selectivity of electrophilic bromination of anilines. The addition of acid additives is crucial for the success of this reaction. A broad range of substrates with various substitution patterns can be tolerated in this reaction. Moreover, benzoic acid derivatives bearing complex substitution patterns are also viable with this mild bromination reaction, and meta-C–H chlorination is also feasible under similar reaction conditions. The ease of the directing group removal and subsequent diverse transformations of the brominated products demonstrate the application potential of this method and promise new opportunities for drug discovery. An unprecedented Pd-catalyzed meta-C–H bromination and chlorination of highly substituted aniline and benzoic acid derivatives using N-bromophthalimide is reported.![]()
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Affiliation(s)
- Hao Wang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences (CAS), 155 West Yang-Qiao Road, Fuzhou, Fujian, 350002, China
| | - Lei Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences (CAS), 155 West Yang-Qiao Road, Fuzhou, Fujian, 350002, China
| | - Chunlin Zhou
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences (CAS), 155 West Yang-Qiao Road, Fuzhou, Fujian, 350002, China
| | - Gang Li
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences (CAS), 155 West Yang-Qiao Road, Fuzhou, Fujian, 350002, China
- Frontiers Science Center for Transformative Molecules, School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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6
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Sinha SK, Guin S, Maiti S, Biswas JP, Porey S, Maiti D. Toolbox for Distal C-H Bond Functionalizations in Organic Molecules. Chem Rev 2021; 122:5682-5841. [PMID: 34662117 DOI: 10.1021/acs.chemrev.1c00220] [Citation(s) in RCA: 166] [Impact Index Per Article: 55.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Transition metal catalyzed C-H activation has developed a contemporary approach to the omnipresent area of retrosynthetic disconnection. Scientific researchers have been tempted to take the help of this methodology to plan their synthetic discourses. This paradigm shift has helped in the development of industrial units as well, making the synthesis of natural products and pharmaceutical drugs step-economical. In the vast zone of C-H bond activation, the functionalization of proximal C-H bonds has gained utmost popularity. Unlike the activation of proximal C-H bonds, the distal C-H functionalization is more strenuous and requires distinctly specialized techniques. In this review, we have compiled various methods adopted to functionalize distal C-H bonds, mechanistic insights within each of these procedures, and the scope of the methodology. With this review, we give a complete overview of the expeditious progress the distal C-H activation has made in the field of synthetic organic chemistry while also highlighting its pitfalls, thus leaving the field open for further synthetic modifications.
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Affiliation(s)
- Soumya Kumar Sinha
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Srimanta Guin
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sudip Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Jyoti Prasad Biswas
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sandip Porey
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
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7
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Ackermann L, Korvorapun K, Samanta RC, Rogge T. Remote C–H Functionalizations by Ruthenium Catalysis. SYNTHESIS-STUTTGART 2021. [DOI: 10.1055/a-1485-5156] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
AbstractSynthetic transformations of otherwise inert C–H bonds have emerged as a powerful tool for molecular modifications during the last decades, with broad applications towards pharmaceuticals, material sciences, and crop protection. Consistently, a key challenge in C–H activation chemistry is the full control of site-selectivity. In addition to substrate control through steric hindrance or kinetic acidity of C–H bonds, one important approach for the site-selective C–H transformation of arenes is the use of chelation-assistance through directing groups, therefore leading to proximity-induced ortho-C–H metalation. In contrast, more challenging remote C–H activations at the meta- or para-positions continue to be scarce. Within this review, we demonstrate the distinct character of ruthenium catalysis for remote C–H activations until March 2021, highlighting among others late-stage modifications of bio-relevant molecules. Moreover, we discuss important mechanistic insights by experiments and computation, illustrating the key importance of carboxylate-assisted C–H activation with ruthenium(II) complexes.1 Introduction2 Stoichiometric Remote C–H Functionalizations3 meta-C–H Functionalizations4 para-C–H Functionalizations5 meta-/ortho-C–H Difunctionalizations6 Conclusions
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8
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Li G, An J, Jia C, Yan B, Zhong L, Wang J, Yang S. m-CAr–H Bond Alkylations and Difluoromethylation of Tertiary Phosphines Using a Ruthenium Catalyst. Org Lett 2020; 22:9450-9455. [DOI: 10.1021/acs.orglett.0c03377] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gang Li
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P. R. China
| | - Jiangzhen An
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P. R. China
| | - Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences, Huaqiao University, Xiamen 361021, P. R. China
| | - Bingxu Yan
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P. R. China
| | - Lei Zhong
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P. R. China
| | - Junjie Wang
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P. R. China
| | - Suling Yang
- College of Chemistry and Chemical Engineering, Henan Province Key Laboratory of New Optoelectronic Functional Materials, Anyang Normal University, Anyang 455002, P. R. China
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9
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Sasmal S, Dutta U, Lahiri GK, Maiti D. Transition Metals and Transition Metals/Lewis Acid Cooperative Catalysis for Directing Group Assisted para-C–H Functionalization. CHEM LETT 2020. [DOI: 10.1246/cl.200500] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Sheuli Sasmal
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Uttam Dutta
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Goutam Kumar Lahiri
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
- Tokyo Tech World Research Hub Initiative (WRHI) Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Tokyo 152-8550, Japan
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10
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Chen J, Huang T, Gong X, Yu Z, Shi Y, Yan Y, Zheng Y, Liu X, Li G, Wu Y. Ruthenium‐Catalyzed
meta
‐Selective C−H Nitration of Biologically Important Aryltetrazoles. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000475] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Jian Chen
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Tianle Huang
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Xinrui Gong
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Zhu‐Jun Yu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Yuesen Shi
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Yu‐Hang Yan
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Yang Zheng
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Xuexin Liu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Guo‐Bo Li
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
| | - Yong Wu
- Key Laboratory of Drug-Targeting of Education Ministry and Department of Medicinal Chemistry, West China School of PharmacySichuan University Chengdu 610041 People's Republic of China
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11
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Yang S, Yan B, Zhong L, Jia C, Yao D, Yang C, Sun K, Li G. AIBN for Ru-catalyzed meta-C Ar–H alkylation. Org Chem Front 2020. [DOI: 10.1039/d0qo00703j] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The meta-CAr–H alkylation of arenes with radicals produced from AIBN in the presence of a RuCl3 catalyst is presented.
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Affiliation(s)
- Suling Yang
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
| | - Bingxu Yan
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
| | - Lei Zhong
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
| | - Chunqi Jia
- Engineering Research Center of Molecular Medicine of Ministry of Education
- Key Laboratory of Fujian Molecular Medicine
- Key Laboratory of Xiamen Marine and Gene Drugs
- School of Biomedical Sciences
- Huaqiao University
| | - Dan Yao
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
| | - Chunli Yang
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
| | - Kai Sun
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
| | - Gang Li
- College of Chemistry and Chemical Engineering
- Henan Province Key Laboratory of New Optoelectronic Functional Materials
- Anyang Normal University
- Anyang 455002
- PR China
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12
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Lakshmireddy VM, Naga Veera Y, Reddy TJ, Rao VJ, China Raju B. A Green and Sustainable Approach for Selective Halogenation of Anilides, Benzanilides, Sulphonamides and Heterocycles
†. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900296] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- V. M. Lakshmireddy
- Organic Synthesis & Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
- AcSIR-Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201002 India
| | - Y. Naga Veera
- Analytical Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - T. J. Reddy
- Analytical Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
| | - V. J. Rao
- Fluoro Agrochemicals DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
- AcSIR-Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201002 India
| | - B. China Raju
- Organic Synthesis & Process Chemistry DivisionCSIR-Indian Institute of Chemical Technology Hyderabad 500 007 India
- AcSIR-Postal Staff College Area, Sector 19, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201002 India
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13
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Cu-catalyzed direct ortho-chlorination/-oxygenation of aryls: Switching of oxidant, control the diversity of products. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2018.11.071] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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14
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Hong X, Zhou Q, Huang S, Cui HZ, Li ZM, Hou XF. Transition metal catalysed C7 and ortho-selective halogenation of 2-arylbenzo[d]oxazoles. Org Chem Front 2019. [DOI: 10.1039/c9qo00429g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
An approach to construct C–X bonds on the C7 or ortho-position of 2-arylbenzo[d]oxazoles by Rh and Ru catalysts has been reported.
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Affiliation(s)
- Xi Hong
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Quan Zhou
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Shuang Huang
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - He-Zhen Cui
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Zhi-Ming Li
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
| | - Xiu-Feng Hou
- Department of Chemistry
- Fudan University
- Shanghai 200433
- P. R. China
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