1
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Lakshman MK, Malinchak CT, Shank N, Neary MC, Stahl L. Purinyl N-directed aroylation of 6-arylpurine ribo- and 2'-deoxyribonucleosides, and mechanistic insights. Org Biomol Chem 2024; 22:6718-6726. [PMID: 38916551 DOI: 10.1039/d4ob00689e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/26/2024]
Abstract
The purinyl ring contains four embedded nitrogen atoms of varying basicities. Selective utilization of these ring nitrogen atoms can lead to relatively facile remote functionalization, yielding modified purinyl motifs that are otherwise not easily obtained. Herein, we report previously undescribed N-directed aroylation of 6-arylpurine ribo and the more labile 2'-deoxyribonucleosides. Kinetic isotope analysis as well as reaction with a well-defined dimeric, palladated 9-benzyl 6-arylpurine provided evidence for N-directed cyclometallation as a key step, with a plausible rate-limiting C-H bond cleavage. Radical inhibition experiments indicate the likely intermediacy of aroyl radicals. The chemistry surmounts difficulties often posed in the functionalization of polynitrogenated and polyoxygenated nucleosidic structures that possess complex reactivities and a labile glycosidic bond that is more sensitive in the 2'-deoxy substrates.
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Affiliation(s)
- Mahesh K Lakshman
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA.
- The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016, USA
| | - Casina T Malinchak
- Department of Chemistry and Biochemistry, The City College of New York, 160 Convent Avenue, New York, NY 10031, USA.
- The Ph.D. Program in Chemistry, The Graduate Center of the City University of New York, 365 Fifth Avenue, New York, NY 10016, USA
| | - Nathaniel Shank
- Department of Chemistry and Biochemistry, Georgia Southern University, 11935 Abercorn Street, Savannah, GA 31419, USA
| | - Michelle C Neary
- Department of Chemistry, Hunter College, 695 Park Avenue, New York, NY 10065, USA
| | - Lothar Stahl
- Department of Chemistry, University of North Dakota, 151 Cornell Street Stop 9024, Grand Forks, ND 58202, USA
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2
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Lalji RSK, Monika, Gupta M, Kumar S, Butcher RJ, Singh BK. Expedient, regioselective C-H chalcogenation of 3,4-dihydro-1,4-benzoxazines using a palladium-copper catalyst. Org Biomol Chem 2024; 22:5809-5815. [PMID: 38946460 DOI: 10.1039/d4ob00524d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
The palladium-catalysed regioselective C-H chalcogenation of benzoxazines with disulfides and diselenides in air has been described. In this protocol, palladium acetate serves as the catalyst in conjunction with copper as an oxidizing agent. Through this approach, a wide array of sulfenylation and selenylation reactions of benzomorpholines have been effected, yielding results ranging from good to excellent. Thus, the established procedure demonstrates superb regioselectivity and a strong tolerance towards various functional groups and is suitable for gram-scale synthesis. Additionally, this synthetic approach offers a practical and convenient pathway for late-stage functionalization leading to the Rosenmund-von Braun reaction.
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Affiliation(s)
- Ram Sunil Kumar Lalji
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
- Department of Chemistry, Kirori Mal College, Delhi University, Delhi-110007, India
| | - Monika
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Mohit Gupta
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
- Department of Chemistry, L.N.M.S. College, Birpur, Supaul, Bihar-854340, India
| | - Sandeep Kumar
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
| | - Ray J Butcher
- Inorganic & Structural Chemistry, Howard University, Washington DC 20059, USA
| | - Brajendra Kumar Singh
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India.
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3
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Lalji RSK, Prince, Gupta M, Kumar S, Kumar A, Singh BK. Rhodium-catalyzed selenylation and sulfenylation of quinoxalinones 'on water'. RSC Adv 2023; 13:6191-6198. [PMID: 36814880 PMCID: PMC9940630 DOI: 10.1039/d2ra07400a] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 02/08/2023] [Indexed: 02/22/2023] Open
Abstract
A rhodium-catalysed, regioselective synthetic methodology for selenylation and sulfenylation of 3-phenyl quinoxolinones has been developed through N-directed C-H activation in the presence of silver triflimide, and silver carbonate using dichalcogenides 'on water'. The methodology has been proven to be efficient, regioselective and green. Using this method, a range of selenylations and sulfenylations of the substrates has been carried out in good to excellent yields. Further, late-stage functionalisation produced potential anti-tumour, anti-fungal and anti-bacterial agents making these compounds potential drug candidates.
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Affiliation(s)
- Ram Sunil Kumar Lalji
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi Delhi 110007 India
- Department of Chemistry, Kirori Mal College, University of Delhi Delhi 110007 India
| | - Prince
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi Delhi 110007 India
| | - Mohit Gupta
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi Delhi 110007 India
- Department of Chemistry, L. N. M. S. College Supaul Birpur Bihar 8543340 India
| | - Sandeep Kumar
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi Delhi 110007 India
| | - Amit Kumar
- Department of Chemistry, IIT Patna Bihar 801106 India
| | - Brajendra Kumar Singh
- Bio-Organic Research Laboratory, Department of Chemistry, University of Delhi Delhi 110007 India
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4
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Mori A, Curpanen S, Pezzetta C, Perez-Luna A, Poli G, Oble J. C–H Activation Based Functionalizations of Furfural Derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alessia Mori
- Sorbonne Université: Sorbonne Universite IPCM FRANCE
| | | | | | | | | | - Julie Oble
- Sorbonne Université: Sorbonne Universite IPCM FRANCE
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5
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Hsiao PY, Chang R, Sue ACH, Chu JH, Liao GW, Lee YH, Huang JY. Synthesis and Mechanistic Investigation of Bipyrazolo[1,5- a]pyridines via Palladium-Catalyzed Cross-Dehydrogenative Coupling of Pyrazolo[1,5- a]pyridines. J Org Chem 2022; 87:9851-9863. [PMID: 35844185 DOI: 10.1021/acs.joc.2c00895] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The synthesis of a range of 3,3'-bipyrazolo[1,5-a]pyridine derivatives via direct cross-dehydrogenative coupling of pyrazolo[1,5-a]pyridine precursors is herein presented. This simple and efficient methodology involving palladium(II)-catalyzed C-H bond activation showed good functional group tolerance and product yield (up to 94%). Through the mechanistic insights gained from both kinetic isotope effect experimental studies and density functional theory calculations, a plausible reaction mechanism was outlined. Furthermore, subsequent derivatizations of the resulting 7,7'-diaryl-3,3'-bipyrazolo[1,5-a]pyridines, executed by performing palladium-mediated ortho C-H bond activation followed by hypervalent iodine-induced chlorination, rendered this series of compounds more extended π-conjugation and twisted conformations. Our study on these bipyrazolo[1,5-a]pyridine-based luminogens provides new opportunities for tailor-made organic luminescent materials.
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Affiliation(s)
- Pu-Yen Hsiao
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan, R.O.C
| | - Rong Chang
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Andrew C-H Sue
- College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, China
| | - Jean-Ho Chu
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan, R.O.C
| | - Guan-Wei Liao
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan, R.O.C
| | - Yi-Hsin Lee
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan, R.O.C
| | - Jui-Yang Huang
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan, R.O.C
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6
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Sharma R, Yadav RK, Jain M, Joshi J, Chaudhary S. Oxidant-Switched Palladium-Catalyzed Regioselective Mono- versus Bis- ortho-Aroylation of 1-Aryl-1 H-indazoles with Aldehydes via C-H Bond Activation. J Org Chem 2022; 87:2668-2685. [PMID: 35119847 DOI: 10.1021/acs.joc.1c02628] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A highly efficient oxidant-switched palladium-catalyzed regioselective C(sp2)-H/C(sp2)-H cross-dehydrogenative coupling (CDC) for direct mono/bis-ortho-aroylation of substituted 1-phenyl-1H-indazoles 1a-j with various substituted aldehydes 3a-t via C(sp2)-H bond activation has been developed. In this study, Pd-catalyzed chelation-assisted mono- or bis-aroylation of substituted 1-phenyl-1H-indazoles depends on the type of oxidant being used for the CDC reaction. While mono-ortho-aroylation of substituted 1-phenyl-1H-indazole was obtained using dicumylperoxide (DCP) as the oxidant, the bis-ortho-aroylation product has been afforded by the use of tert-butyl hydroperoxide (TBHP). Regardless of the greater activity at the C-3 position of 1H-indazoles, the greater coordinating capacity of the N atom directed the aroylating group to the ortho position, leaving behind the nondirected metalation pathway. The Pd-catalyzed operationally simplified methodology proceeded in the presence of oxidants with either DCP or TBHP in dichloroethane as the solvent at 110 °C for 16 h, which generated a miscellaneous variety of monosubstituted o-benzoyl/acyl-1-aryl-1H-indazoles 4a-t/5a-i and bis-substituted o-benzoyl-1-aryl-1H-indazoles 6a-j in ≤88% yields. The probable mechanistic pathway involves a free radical chelation-assisted approach that could be accomplished by the addition of an in situ-generated oxidant-promoted benzoyl/acyl radical to the ortho position of 1-phenyl-1H-indazoles. A wide range of substrates, a high functional group tolerance, gram-scale synthesis, control/competitive experiments, and a variety of synthetic applications further exemplify the versatility of the developed methodology.
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Affiliation(s)
- Richa Sharma
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Ravi Kant Yadav
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Mukesh Jain
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Jyoti Joshi
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India
| | - Sandeep Chaudhary
- Laboratory of Organic and Medicinal Chemistry, Department of Chemistry, Malaviya National Institute of Technology, Jawaharlal Nehru Marg, Jaipur 302017, India.,Laboratory of Bioactive Heterocycles and Catalysis, Department of Medicinal Chemistry, National Institute of Pharmaceutical Education and Research-Raebareli (Transit Campus), Bijnor-Sisendi Road, Near CRPF Base Camp, Sarojini Nagar, Lucknow 226002, India
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7
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Prince, Kumar S, Lalji RSK, Gupta M, Kumar P, Kumar R, Singh BK. Sustainable C–H activation approach for palladium-catalyzed, regioselective functionalization of 1-methyl-3-phenyl quinoxaline-2(1 H)-ones in water. Org Biomol Chem 2022; 20:8944-8951. [DOI: 10.1039/d2ob01451c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
An environment-friendly approach for regioselective acylation of 1-methyl-3-phenyl quinoxaline-2(1H)-ones was developed using water as a solvent. The protocol exhibits a wide substrate scope and employs commercially available, non-toxic acyl surrogates.
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Affiliation(s)
- Prince
- Bio-organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
- Department of Chemistry, Nanak Chand Anglo Sanskrit College, Meerut, Uttar Pradesh-250001, India
| | - Sandeep Kumar
- Bio-organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
| | - Ram Sunil Kumar Lalji
- Bio-organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
- Department of Chemistry, Kirori-Mal College, Delhi University, Delhi-110007, India
| | - Mohit Gupta
- Bio-organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
- Department of Chemistry, L.N.M.S. College, Birpur, Supaul, Bihar-854340, India
| | - Prashant Kumar
- Bio-organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
- Department of Chemistry, SRM University, Delhi-NCR Sonepat, Haryana-131029, India
| | - Ravindra Kumar
- CSIR-Central Drug Research Institute, Lucknow, Uttar Pradesh-226031, India
| | - Brajendra K. Singh
- Bio-organic Research Laboratory, Department of Chemistry, University of Delhi, Delhi-110007, India
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8
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Urruzuno I, Andrade-Sampedro P, Correa A. Late-Stage C-H Acylation of Tyrosine-Containing Oligopeptides with Alcohols. Org Lett 2021; 23:7279-7284. [PMID: 34477386 PMCID: PMC8453636 DOI: 10.1021/acs.orglett.1c02764] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Indexed: 12/13/2022]
Abstract
The selective tagging of amino acids within a peptide framework while using atom-economical C-H counterparts poses an unmet challenge within peptide chemistry. Herein, we report a novel Pd-catalyzed late-stage C-H acylation of a collection of Tyr-containing peptides with alcohols. This water-compatible labeling technique is distinguished by its reliable scalability and features the use of ethanol as a renewable feedstock for the assembly of a variety of peptidomimetics.
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Affiliation(s)
- Iñaki Urruzuno
- Department
of Organic Chemistry I, University of the
Basque Country (UPV/EHU), Joxe Mari Korta
R&D Center, Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain
| | - Paula Andrade-Sampedro
- Department
of Organic Chemistry I, University of the
Basque Country (UPV/EHU), Joxe Mari Korta
R&D Center, Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain
- Donostia
International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastián, Spain
| | - Arkaitz Correa
- Department
of Organic Chemistry I, University of the
Basque Country (UPV/EHU), Joxe Mari Korta
R&D Center, Avenida Tolosa 72, 20018 Donostia-San Sebastián, Spain
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9
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Sun X, Dong X, Liu H, Liu Y. Recent Progress in Palladium‐Catalyzed Radical Reactions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001315] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Xi Sun
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Xu Dong
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Hui Liu
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
| | - Yuying Liu
- School of Chemistry Chemical Engineering Shandong University of Technology 266 West Xincun Road Zibo 255049 People's Republic of China
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10
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Kumar P, Dutta S, Kumar S, Bahadur V, Van der Eycken EV, Vimaleswaran KS, Parmar VS, Singh BK. Aldehydes: magnificent acyl equivalents for direct acylation. Org Biomol Chem 2020; 18:7987-8033. [PMID: 33000845 DOI: 10.1039/d0ob01458c] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/14/2024]
Abstract
From the viewpoint of meeting the current green chemistry challenges in chemical synthesis, there is a need to disseminate how the cocktail of acylation and activation can play a pivotal role in affording bioactive acylated products comprising substituted ketone motifs in fewer reaction steps, with higher atom-economy and improved selectivity. In recent years, a significant number of articles employing the title compounds "aldehydes" as magnificent acylation surrogates which are less toxic and widely applicable have been published. This review sheds light on the compounds use for selective acylation of arene, heteroarene and alkyl (sp3, sp2 and sp) C-H bonds by proficient utilization of the C-H activation strategy. Critical insights into selective acylation of diverse moieties for the synthesis of bioactive compounds are presented in this review that will enable academic and industrial researchers to understand the mechanistic aspects involved and fruitfully employ these strategies in designing novel molecules.
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Affiliation(s)
- Prashant Kumar
- Department of Chemistry, SRM University Delhi-NCR, Sonepat, Haryana 131029, India. and Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Sriparna Dutta
- Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Sandeep Kumar
- Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Vijay Bahadur
- Department of Chemistry, SRM University Delhi-NCR, Sonepat, Haryana 131029, India. and Department of Chemistry, University of Delhi, Delhi 110007, India.
| | - Erik V Van der Eycken
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium and Peoples' Friendship University of Russia, (RUDN University) Miklukho-Maklaya, street 6, Moscow, 117198, Russia
| | | | - Virinder S Parmar
- Department of Chemistry and Environmental Science, Medgar Evers College, The City University of New York, 1638 Bedford Avenue, Brooklyn, NY 11225, USA
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11
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San Segundo M, Correa A. Site-selective aqueous C-H acylation of tyrosine-containing oligopeptides with aldehydes. Chem Sci 2020; 11:11531-11538. [PMID: 34094398 PMCID: PMC8162766 DOI: 10.1039/d0sc03791e] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 09/30/2020] [Indexed: 12/14/2022] Open
Abstract
The development of useful synthetic tools to label amino acids within a peptide framework for the ultimate modification of proteins in a late-stage fashion is a challenging task of utmost importance within chemical biology. Herein, we report the first Pd-catalyzed C-H acylation of a collection of Tyr-containing peptides with aldehydes. This water-compatible tagging technique is distinguished by its site-specificity, scalability and full tolerance of sensitive functional groups. Remarkably, it provides straightforward access to a high number of oligopeptides with altered side-chain topology including mimetics of endomorphin-2 and neuromedin N, thus illustrating its promising perspectives toward the diversification of structurally complex peptides and chemical ligation.
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Affiliation(s)
- Marcos San Segundo
- University of the Basque Country (UPV/EHU), Department of Organic Chemistry I, Joxe Mari Korta R&D Center Avda. Tolosa 72 20018 Donostia-San Sebastián Spain
| | - Arkaitz Correa
- University of the Basque Country (UPV/EHU), Department of Organic Chemistry I, Joxe Mari Korta R&D Center Avda. Tolosa 72 20018 Donostia-San Sebastián Spain
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12
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Chu JH, Su ZH, Yen KW, Chien HI. Investigation of Stepwise and Stoichiometric Palladium-Mediated ortho-C–H Bond Arylation and Alkylation of 9(10 H)-Acridinone. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00356] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jean-Ho Chu
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Zhe-Hong Su
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Ko-Wang Yen
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Hsuan-I Chien
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
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13
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Pd(II)-Catalyzed C-H Acylation of (Hetero)arenes-Recent Advances. Molecules 2020; 25:molecules25143247. [PMID: 32708781 PMCID: PMC7397280 DOI: 10.3390/molecules25143247] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 07/13/2020] [Accepted: 07/15/2020] [Indexed: 02/06/2023] Open
Abstract
Di(hetero)aryl ketones are important motifs present in natural products, pharmaceuticals or agrochemicals. In recent years, Pd(II)-catalyzed acylation of (hetero)arenes in the presence of an oxidant has emerged as a catalytic alternative to classical acylation methods, reducing the production of toxic metal waste. Different directing groups and acyl sources are being studied for this purpose, although further development is required to face mainly selectivity problems in order to be applied in the synthesis of more complex molecules. Selected recent developments and applications are covered in this review.
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14
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Santiago C, Rubio I, Sotomayor N, Lete E. Selective PdII
-Catalyzed Acylation of Pyrrole with Aldehydes. Application to the Synthesis of Celastramycin Analogues and Tolmetin. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Carlos Santiago
- Departamento de Química Orgánica II; Facultad de Ciencia y Tecnología; Universidad del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU; Apdo. 644. 48080 Bilbao Spain
| | - Ibon Rubio
- Departamento de Química Orgánica II; Facultad de Ciencia y Tecnología; Universidad del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU; Apdo. 644. 48080 Bilbao Spain
| | - Nuria Sotomayor
- Departamento de Química Orgánica II; Facultad de Ciencia y Tecnología; Universidad del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU; Apdo. 644. 48080 Bilbao Spain
| | - Esther Lete
- Departamento de Química Orgánica II; Facultad de Ciencia y Tecnología; Universidad del País Vasco / Euskal Herriko Unibertsitatea UPV/EHU; Apdo. 644. 48080 Bilbao Spain
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15
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Chao T, Su ZH, Yen KW, Wu MJ, Chu JH. Synthesis of Dibenzosuberones Bearing an Isoxazole Group via Palladium-Catalyzed Intramolecular C-H/C-Br Bond Cross-Coupling of Ortho-Aroylated 3,5-Diarylisoxazoles. J Org Chem 2020; 85:5559-5569. [PMID: 32212605 DOI: 10.1021/acs.joc.0c00346] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A facile and efficient synthetic methodology for preparing dibenzosuberones via a C-H bond activation strategy is presented. The ortho-aroylated 3,5-diarylisoxazole was employed as the starting substrate to undergo palladium-catalyzed intramolecular C-H/C-Br bond cross-coupling to produce a variety of dibenzosuberones bearing an isoxazole group in 24 to >99% 1H NMR yields. The dibenzosuberone structure was further confirmed by X-ray crystallography. The developed methodology exhibits very good functional group tolerance. In addition, a rational mechanism was presented for describing the reaction process. For the prepared dibenzosuberone, the use of Mo(CO)6 as the catalyst can easily transform the isoxazole ring into the β-aminoenone group. Finally, the structure of the anticipated ring-opening product, dibenzosuberenone, bearing a β-amino-α-ketone group was secured by X-ray crystallography.
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Affiliation(s)
- Tung Chao
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Zhe-Hong Su
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Ko-Wang Yen
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Ming-Jung Wu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Jean-Ho Chu
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
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16
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Javed E, Guthrie JD, Neu J, Chirayath GS, Huo S. Introducing an α-Keto Ester Functional Group through Pt-Catalyzed Direct C-H Acylation with Ethyl Chlorooxoacetate. ACS OMEGA 2020; 5:8393-8402. [PMID: 32309750 PMCID: PMC7161214 DOI: 10.1021/acsomega.0c00982] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Accepted: 03/25/2020] [Indexed: 06/11/2023]
Abstract
Platinum-catalyzed selective C-H acylation of 2-aryloxypyridines with ethyl chlorooxoacetate provides an efficient way of introducing an α-keto ester functional group. The reaction is oxidant-free, additive-free, and, more significantly, free of any decarbonylative side reactions. The reaction tolerates a variety of substituents from strongly electron-donating to strongly electron-withdrawing groups. Double acylation is feasible for 2-phenoxypyridine and its derivatives with only one substituent at the para position. Although the reaction of 2-(2-methylphenoxy)pyridine with ethyl malonyl chloride did not produce the desired β-keto ester, the reaction with ethyl succinyl chloride proceeded smoothly to give the γ-keto ester. Ethyl chlorooxoacetate is much more reactive than ethyl succinyl chloride in this Pt-catalyzed C-H acylation reaction.
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Affiliation(s)
- Erman Javed
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | | | - Justin Neu
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | - George S. Chirayath
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
| | - Shouquan Huo
- Department of Chemistry, East
Carolina University, Greenville, North Carolina 27858, United States
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17
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Yun YL, Yang J, Miao YH, Sun J, Wang XJ. Recent advances in Palladium(II)-catalyzed activation of aromatic ring C–H bonds. JOURNAL OF SAUDI CHEMICAL SOCIETY 2020. [DOI: 10.1016/j.jscs.2020.01.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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18
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Wu M, Chu J. Directing group assists in transition metal‐catalyzed site‐selective C‐H bond activation/transformations. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900471] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Ming‐Jung Wu
- Department of ChemistryNational Sun Yat‐sen University Kaohsiung Taiwan
| | - Jean‐Ho Chu
- Department of Applied ScienceNational Taitung University Taitung Taiwan
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19
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Kshirsagar UA, Waghmare DS, Tambe SD. The regioselective coupling of 2-arylquinazolinone C–H with aldehydes and benzyl alcohols under oxidative conditions. NEW J CHEM 2020. [DOI: 10.1039/d0nj03721d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Palladium catalyzed direct and regioselective cross dehydrogenative coupling (CDC) of 2-arylquinazoline-4-one endowed with a quinazolinone nucleus as an inherent directing group with aldehyde and oxidative coupling with benzyl alcohol was developed.
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Affiliation(s)
- Umesh A. Kshirsagar
- Discipline of Chemistry
- Indian Institute of Technology Indore
- Indore
- India
- Department of Chemistry
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20
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Xu X, Luo J. Transition Metal-Catalyzed Directing-Group-Assisted C-H Activation of Phenols. CHEMSUSCHEM 2019; 12:4601-4616. [PMID: 31418536 DOI: 10.1002/cssc.201901951] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 08/14/2019] [Indexed: 05/08/2023]
Abstract
Strategies that exploit directing groups to control the site selectivity in the C-H activation of arenes have received much attention during the past two decades. In light of the importance of phenol derivatives in the areas of pharmaceuticals, agrochemicals, and materials science, transition-metal-catalyzed C-H activation of phenols has proven to be an extremely useful tool in organic synthesis. This Minireview summarizes the current state-of-the-art direct C-H activation of phenol derivatives under transition-metal catalysis.
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Affiliation(s)
- Xing Xu
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
| | - Junfei Luo
- School of Materials Science and Chemical Engineering, Ningbo University, Ningbo, 315211, P. R. China
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21
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Xiao Y, Wu X, Teng J, Sun S, Yu JT, Cheng J. Copper-catalyzed acylation of pyrazolones with aldehydes to afford 4-acylpyrazolones. Org Biomol Chem 2019; 17:7552-7557. [PMID: 31372617 DOI: 10.1039/c9ob01486a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Copper-catalyzed direct acylation of the alkenyl C-H bond in 1,2-dihydro-3H-pyrazol-3-ones has been developed, affording a series of 4-acylpyrazolones in moderate to good yields. Notably, this protocol involves readily accessible substrates and reagents, which have good functional group tolerance leading to pyrazolone derivatives under mild reaction conditions.
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Affiliation(s)
- Yan Xiao
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Xiaopeng Wu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Jiangang Teng
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Song Sun
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Jiang Cheng
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
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22
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Chu JH, Chiang MF, Li CW, Su ZH, Lo SC, Wu MJ. Palladium-Catalyzed Late-Stage ortho-C–H Bond Aroylation of Anilines Using 4-Methoxy-2-pyridinyl as a Removable Directing Group. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00119] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jean-Ho Chu
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Meng-Fan Chiang
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Chin-Wei Li
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Zhe-Hong Su
- Department of Applied Science, National Taitung University, Taitung 95092, Taiwan
| | - Shao-Chi Lo
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
| | - Ming-Jung Wu
- Department of Chemistry, National Sun Yat-sen University, Kaohsiung 804, Taiwan
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23
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Rahim A, Shaik SP, Baig MF, Alarifi A, Kamal A. Iodine mediated oxidative cross-coupling of unprotected anilines and heteroarylation of benzothiazoles with 2-methylquinoline. Org Biomol Chem 2019; 16:635-644. [PMID: 29303199 DOI: 10.1039/c7ob02241g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Iodine-promoted oxidative C-H/C-H cross-coupling of unprotected anilines and 2-methylquinoline to furnish C4-carbonylated aniline (4-aminophenyl)(quinoline-2-yl) methanones in moderate to good yields has been demonstrated. This work provides the first site-selective approach for the synthesis of free amino groups containing methanones including unprecedented C-H functionalization rather than the N-H functionalization of unprotected anilines via the Kornblum oxidation of 2-methylquinoline. Furthermore, we noticed that the incorporation of KOH under standard conditions provides 2-heteroarylbenzothiazoles from benzothiazoles and 2-methylquinoline in good to excellent yields. These transformations do not require any transition metals or peroxides and tolerate various functional groups such as methoxy, hydroxy, bromo, chloro and nitro groups. Moreover, a plausible mechanistic pathway is proposed.
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Affiliation(s)
- Abdul Rahim
- Medicinal Chemistry and Biotechnology Division, CSIR-Indian Institute of Chemical Technology (IICT), Hyderabad-500007, India.
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24
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Nickel-catalysed C O bond reduction of 2,4,6-triaryloxy-1,3,5-triazines in 2-methyltetrahydrofuran. CHINESE CHEM LETT 2019. [DOI: 10.1016/j.cclet.2018.09.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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25
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Sambiagio C, Schönbauer D, Blieck R, Dao-Huy T, Pototschnig G, Schaaf P, Wiesinger T, Zia MF, Wencel-Delord J, Besset T, Maes BUW, Schnürch M. A comprehensive overview of directing groups applied in metal-catalysed C-H functionalisation chemistry. Chem Soc Rev 2018; 47:6603-6743. [PMID: 30033454 PMCID: PMC6113863 DOI: 10.1039/c8cs00201k] [Citation(s) in RCA: 1105] [Impact Index Per Article: 184.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Indexed: 12/20/2022]
Abstract
The present review is devoted to summarizing the recent advances (2015-2017) in the field of metal-catalysed group-directed C-H functionalisation. In order to clearly showcase the molecular diversity that can now be accessed by means of directed C-H functionalisation, the whole is organized following the directing groups installed on a substrate. Its aim is to be a comprehensive reference work, where a specific directing group can be easily found, together with the transformations which have been carried out with it. Hence, the primary format of this review is schemes accompanied with a concise explanatory text, in which the directing groups are ordered in sections according to their chemical structure. The schemes feature typical substrates used, the products obtained as well as the required reaction conditions. Importantly, each example is commented on with respect to the most important positive features and drawbacks, on aspects such as selectivity, substrate scope, reaction conditions, directing group removal, and greenness. The targeted readership are both experts in the field of C-H functionalisation chemistry (to provide a comprehensive overview of the progress made in the last years) and, even more so, all organic chemists who want to introduce the C-H functionalisation way of thinking for a design of straightforward, efficient and step-economic synthetic routes towards molecules of interest to them. Accordingly, this review should be of particular interest also for scientists from industrial R&D sector. Hence, the overall goal of this review is to promote the application of C-H functionalisation reactions outside the research groups dedicated to method development and establishing it as a valuable reaction archetype in contemporary R&D, comparable to the role cross-coupling reactions play to date.
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Affiliation(s)
- Carlo Sambiagio
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - David Schönbauer
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Remi Blieck
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Toan Dao-Huy
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Gerit Pototschnig
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Patricia Schaaf
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Thomas Wiesinger
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Muhammad Farooq Zia
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
| | - Joanna Wencel-Delord
- Laboratoire de Chimie Moléculaire (UMR CNRS 7509)
, Université de Strasbourg
,
ECPM 25 Rue Becquerel
, 67087 Strasbourg
, France
| | - Tatiana Besset
- Normandie Univ
, INSA Rouen
, UNIROUEN
, CNRS
, COBRA (UMR 6014)
,
76000 Rouen
, France
| | - Bert U. W. Maes
- Organic Synthesis (ORSY)
, Department of Chemistry
, University of Antwerp
,
Groenenborgerlaan 171
, 2020 Antwerp
, Belgium
| | - Michael Schnürch
- Institute of Applied Synthetic Chemistry
, TU Wien
,
Getreidemarkt 9/163
, A-1060 Vienna
, Austria
.
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26
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Yang S, Feng B, Yang Y. Rh(III)-Catalyzed Direct ortho-Chalcogenation of Phenols and Anilines. J Org Chem 2017; 82:12430-12438. [DOI: 10.1021/acs.joc.7b02221] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Shiping Yang
- Key Laboratory of Green Chemistry
and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China
| | - Boya Feng
- Key Laboratory of Green Chemistry
and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China
| | - Yudong Yang
- Key Laboratory of Green Chemistry
and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, PR China
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27
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Yi H, Zhang G, Wang H, Huang Z, Wang J, Singh AK, Lei A. Recent Advances in Radical C-H Activation/Radical Cross-Coupling. Chem Rev 2017. [PMID: 28639787 DOI: 10.1021/acs.chemrev.6b00620] [Citation(s) in RCA: 863] [Impact Index Per Article: 123.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Research and industrial interest in radical C-H activation/radical cross-coupling chemistry has continuously grown over the past few decades. These reactions offer fascinating and unconventional approaches toward connecting molecular fragments with high atom- and step-economy that are often complementary to traditional methods. Success in this area of research was made possible through the development of photocatalysis and first-row transition metal catalysis along with the use of peroxides as radical initiators. This Review provides a brief and concise overview of the current status and latest methodologies using radicals or radical cations as key intermediates produced via radical C-H activation. This Review includes radical addition, radical cascade cyclization, radical/radical cross-coupling, coupling of radicals with M-R groups, and coupling of radical cations with nucleophiles (Nu).
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Affiliation(s)
- Hong Yi
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Guoting Zhang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Huamin Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Zhiyuan Huang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Jue Wang
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Atul K Singh
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences, The Institute for Advanced Studies (IAS), Wuhan University , Wuhan, Hubei 430072, China.,National Research Center for Carbohydrate Synthesis, Jiangxi Normal University , Nanchang 330022, China
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28
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Sharma UK, Gemoets HPL, Schröder F, Noël T, Van der Eycken EV. Merger of Visible-Light Photoredox Catalysis and C–H Activation for the Room-Temperature C-2 Acylation of Indoles in Batch and Flow. ACS Catal 2017. [DOI: 10.1021/acscatal.7b00840] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Upendra K. Sharma
- Laboratory
for Organic and Microwave-Assisted Chemistry (LOMAC), Department of
Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Hannes P. L. Gemoets
- Department
of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process
Technology, Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - Felix Schröder
- Laboratory
for Organic and Microwave-Assisted Chemistry (LOMAC), Department of
Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
| | - Timothy Noël
- Department
of Chemical Engineering and Chemistry, Micro Flow Chemistry and Process
Technology, Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
| | - Erik V. Van der Eycken
- Laboratory
for Organic and Microwave-Assisted Chemistry (LOMAC), Department of
Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
- Peoples’ Friendship University of Russia (RUDN University), 6 Miklukho-Maklaya Street, Moscow 117198, Russia
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29
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McAteer DC, Javed E, Huo L, Huo S. Platinum-Catalyzed Double Acylation of 2-(Aryloxy)pyridines via Direct C–H Activation. Org Lett 2017; 19:1606-1609. [DOI: 10.1021/acs.orglett.7b00423] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Donald C. McAteer
- Department of Chemistry, East Carolina University, Greenville, North Carolina 27858, United States
| | - Erman Javed
- Department of Chemistry, East Carolina University, Greenville, North Carolina 27858, United States
| | - Lily Huo
- Department of Chemistry, East Carolina University, Greenville, North Carolina 27858, United States
| | - Shouquan Huo
- Department of Chemistry, East Carolina University, Greenville, North Carolina 27858, United States
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30
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Kaida H, Goya T, Nishii Y, Hirano K, Satoh T, Miura M. Construction of Bisbenzofuro[2,3-b:3′,2′-e]pyridines by Palladium-Catalyzed Double Intramolecular Oxidative C–H/C–H Coupling. Org Lett 2017; 19:1236-1239. [DOI: 10.1021/acs.orglett.7b00323] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Hiroyuki Kaida
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tsuyoshi Goya
- Advanced Materials
Research Center, Nippon Shokubai Co. Ltd., 5-8 Nishi Otabi-cho, Suita, Osaka 564-8512, Japan
| | - Yuji Nishii
- Frontier
Research Base for Global Young Researchers, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Koji Hirano
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
| | - Tetsuya Satoh
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
- Department
of Chemistry, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, Japan
| | - Masahiro Miura
- Department
of Applied Chemistry, Graduate School of Engineering, Osaka University, Suita, Osaka 565-0871, Japan
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31
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Gao C, Li H, Liu M, Ding J, Huang X, Wu H, Gao W, Wu G. Regioselective C–H chlorination: towards the sequential difunctionalization of phenol derivatives and late-stage chlorination of bioactive compounds. RSC Adv 2017. [DOI: 10.1039/c7ra09939h] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Palladium-catalyzed C–H chlorination of phenol derivatives and late-stage chlorination of diflufenican and estrone.
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Affiliation(s)
- Chao Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Hongchen Li
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Miaochang Liu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Jinchang Ding
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Xiaobo Huang
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Huayue Wu
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Wenxia Gao
- College of Chemistry and Materials Engineering
- Wenzhou University
- Wenzhou 325035
- People's Republic of China
| | - Ge Wu
- School of Pharmaceutical Science
- Wenzhou Medical University
- Wenzhou 325035
- People's Republic of China
- State Key Laboratory of Structural Chemistry
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32
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Yang P, Bao YS. Palladium nanoparticles supported on organofunctionalized kaolin as an efficient heterogeneous catalyst for directed C–H functionalization of arylpyrazoles. RSC Adv 2017. [DOI: 10.1039/c7ra11800g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A heterogeneous catalyst system based on the immobilization of Pd0 nanoparticles onto organofunctionalized kaolin is reported with a view to introducing new synthetic routes of directed C–H functionalization of arylpyrazoles.
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Affiliation(s)
- Ping Yang
- College of Chemistry and Environmental Science
- Inner Mongolia Key Laboratory of Green catalysis
- Inner Mongolia Normal University
- Hohhot
- China
| | - Yong-Sheng Bao
- College of Chemistry and Environmental Science
- Inner Mongolia Key Laboratory of Green catalysis
- Inner Mongolia Normal University
- Hohhot
- China
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33
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Hummel JR, Boerth JA, Ellman JA. Transition-Metal-Catalyzed C-H Bond Addition to Carbonyls, Imines, and Related Polarized π Bonds. Chem Rev 2016; 117:9163-9227. [PMID: 27936637 DOI: 10.1021/acs.chemrev.6b00661] [Citation(s) in RCA: 559] [Impact Index Per Article: 69.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The transition-metal-catalyzed addition of C-H bonds to carbonyls, imines, and related polarized π bonds has emerged as a particularly efficient and powerful approach for the construction of an incredibly diverse array of heteroatom-substituted products. Readily available and stable inputs are typically employed, and reactions often proceed with very high functional group compatibility and without the production of waste byproducts. Additionally, many transition-metal-catalyzed C-H bond additions to polarized π bonds occur within cascade reaction sequences to provide rapid access to a diverse array of different heterocyclic as well as carbocyclic products. This review highlights the diversity of transformations that have been achieved, catalysts that have been used, and types of products that have been prepared through the transition-metal-catalyzed addition of C-H bonds to carbonyls, imines, and related polarized π bonds.
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Affiliation(s)
- Joshua R Hummel
- Department of Chemistry, Yale University , 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Jeffrey A Boerth
- Department of Chemistry, Yale University , 225 Prospect Street, New Haven, Connecticut 06520, United States
| | - Jonathan A Ellman
- Department of Chemistry, Yale University , 225 Prospect Street, New Haven, Connecticut 06520, United States
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34
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Wang L, Pan L, Huang Y, Chen Q, He M. Palladium-Catalyzed Regioselective C-H Acetoxylation of 2-Aryloxypyridines with 2-Pyridyloxy as a Removable Directing Group. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600508] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Liang Wang
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
| | - Liang Pan
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
| | - Yibo Huang
- Department of Pharmacy; Changzhou Institute of Engineering and Technology; 213164 Changzhou P. R. China
| | - Qun Chen
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
| | - Mingyang He
- School of Petrochemical Engineering; Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology; Changzhou University; Gehu Raod 1, Wujin 213164 Changzhou P. R. China
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35
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Wu HC, Chu JH, Li CW, Hwang LC, Wu MJ. Palladium-Catalyzed Regioselective Arylation of Pyrazolo[1,5-a]pyridines via C–H Activation and Synthetic Applications on P38 Kinase Inhibitors. Organometallics 2016. [DOI: 10.1021/acs.organomet.5b00988] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Hung-Chou Wu
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 804
| | - Jean-Ho Chu
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 804
| | - Chin-Wei Li
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 804
| | - Long-Chih Hwang
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 804
| | - Ming-Jung Wu
- Department
of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan 804
- Department
of Chemistry, National Sun Yat-sen University, Kaohsiung, Taiwan 804
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36
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Liu M, Chen T, Zhou Y, Yin SF. Transition metal-free oxidative ortho-acylation of phenols with N-heteroarylmethanes via double C–H activation. Catal Sci Technol 2016. [DOI: 10.1039/c6cy01301e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The direct oxidative acylation of phenols with N-heteroarylmethanes via sp3C–H and sp2C–H double activation was achieved under metal-free conditions. The reaction proceeds in a facile I2/DMSO/O2 system regio-selectively to produce valuable (2-hydroxyphenyl)arylmethanones. A plausible mechanism was proposed.
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Affiliation(s)
- Min Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Tieqiao Chen
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Yongbo Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
| | - Shuang-Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics
- College of Chemistry and Chemical Engineering
- Hunan University
- Changsha 410082
- China
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37
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Fan L, Wang T, Tian Y, Xiong F, Wu S, Liang Q, Zhao J. Copper-catalyzed oxidative coupling between quinazoline 3-oxides and unactivated aldehydes: an efficient approach to functionalized quinazolines. Chem Commun (Camb) 2016; 52:5375-8. [DOI: 10.1039/c6cc00946h] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first copper-catalyzed oxidative coupling between quinazoline 3-oxides and unactivated aldehydes was described.
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Affiliation(s)
- Liwen Fan
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Tao Wang
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
- National Research Center for Carbohydrate Synthesis
| | - Ying Tian
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Fei Xiong
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Simei Wu
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Qingjin Liang
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
| | - Junfeng Zhao
- College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- P. R. China
- National Research Center for Carbohydrate Synthesis
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38
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Xiao F, Chen S, Huang H, Deng GJ. Palladium-Catalyzed Oxidative Directortho-C-H Acylation of Arenes with Aldehydes under Aqueous Conditions. European J Org Chem 2015. [DOI: 10.1002/ejoc.201501187] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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39
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Wu XF. Acylation of (Hetero)Arenes through CH Activation with Aroyl Surrogates. Chemistry 2015; 21:12252-65. [DOI: 10.1002/chem.201501548] [Citation(s) in RCA: 113] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2015] [Indexed: 01/02/2023]
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40
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Allu S, Swamy KCK. Palladium-catalysed ortho-acylation of 6-anilinopurines/purine nucleosides via C–H activation. RSC Adv 2015. [DOI: 10.1039/c5ra18447a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
Purinyl N1-directed ortho-acylation of 6-anilinopurines was achieved in the presence of [Pd]-catalyst using aldehydes/α-oxocarboxylic acids as the acylating sources.
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