1
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Wei C, Zhao C, Li J, Li C, Song B, Song R. Innovative Arylimidazole-Fused Phytovirucides via Carbene-Catalyzed [3+4] Cycloaddition: Locking Viral Cell-To-Cell Movement by Out-Competing Virus Capsid-Host Interactions. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2309343. [PMID: 38477505 PMCID: PMC11109656 DOI: 10.1002/advs.202309343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2023] [Revised: 02/22/2024] [Indexed: 03/14/2024]
Abstract
The control of potato virus Y (PVY) induced crop failure is a challengeable issue in agricultural chemistry. Although many anti-PVY agents are designed to focus on the functionally important coat protein (CP) of virus, how these drugs act on CP to inactivate viral pathogenicity, remains largely unknown. Herein, a PVY CP inhibitor -3j (S) is disclosed, which is accessed by developing unusually efficient (up to 99% yield) and chemo-selective (> 99:1 er in most cases) carbene-catalyzed [3+4] cycloaddition reactions. Compound -3j bears a unique arylimidazole-fused diazepine skeleton and shows chirality-preferred performance against PVY. In addition, -3j (S) as a mediator allows ARG191 (R191) of CP to be identified as a key amino acid site responsible for intercellular movement of virions. R191 is further demonstrated to be critical for the interaction between PVY CP and the plant functional protein NtCPIP, enabling virions to cross plasmodesmata. This key step can be significantly inhibited through bonding with the -3j (S) to further impair pathogenic behaviors involving systemic infection and particle assembly. The study reveals the in-depth mechanism of action of antiviral agents targeting PVY CP, and contributes to new drug structures and synthetic strategies for PVY management.
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Affiliation(s)
- Chunle Wei
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Chunni Zhao
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Jiao Li
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Chunyi Li
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Baoan Song
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
| | - Runjiang Song
- National Key Laboratory of Green PesticideKey Laboratory of Green Pesticide and Agricultural BioengineeringMinistry of EducationCenter for R&D of Fine Chemicals of Guizhou UniversityGuiyang550025China
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2
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Saxena A, Majee S, Ray D, Saha B. Inhibition of cancer cells by Quinoline-Based compounds: A review with mechanistic insights. Bioorg Med Chem 2024; 103:117681. [PMID: 38492541 DOI: 10.1016/j.bmc.2024.117681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/11/2024] [Accepted: 03/11/2024] [Indexed: 03/18/2024]
Abstract
This article includes a thorough examination of the inhibitory potential of quinoline-based drugs on cancer cells, as well as an explanation of their modes of action. Quinoline derivatives, due to their various chemical structures and biological activity, have emerged as interesting candidates in the search for new anticancer drugs. The review paper delves into the numerous effects of quinoline-based chemicals in cancer progression, including apoptosis induction, cell cycle modification, and interference with tumor-growth signaling pathways. Mechanistic insights on quinoline derivative interactions with biological targets enlightens their therapeutic potential. However, obstacles such as poor bioavailability, possible off-target effects, and resistance mechanisms make it difficult to get these molecules from benchside to bedside. Addressing these difficulties might be critical for realizing the full therapeutic potential of quinoline-based drugs in cancer treatment.
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Affiliation(s)
- Anjali Saxena
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh
| | - Suman Majee
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh; Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh
| | - Devalina Ray
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh; Amity Institute of Click Chemistry Research and Studies, Amity University, Noida, Uttar Pradesh
| | - Biswajit Saha
- Amity Institute of Biotechnology, Amity University, Noida, Uttar Pradesh.
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3
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Gugulothu K, Jatoth R, Edukondalu P, Vanga A, Matta R, Shiva Kumar K. Synthesis of fused bis-indazoles/indazoles via a one-pot sequential strategy. Org Biomol Chem 2023; 21:2816-2821. [PMID: 36924392 DOI: 10.1039/d3ob00121k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
We report here an efficient synthesis of fused bis-indazoles/indazoles via a one-pot sequential strategy starting from o-azido aldehydes and amines. This novel method involves the sequential formation of 2H-indazole followed by a Pd-catalyzed intramolecular cross-dehydrogenative coupling reaction. Overall, this one-pot sequential reaction involved the formation of new five bonds, resulting in the formation of three heterocyclic rings.
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Affiliation(s)
- Kishan Gugulothu
- Department of Chemistry, Osmania University, Hyderabad-500 007, India
| | - Ramanna Jatoth
- Department of Chemistry, Osmania University, Hyderabad-500 007, India
| | | | - Anusha Vanga
- Department of Chemistry, Osmania University, Hyderabad-500 007, India
| | - Raghavender Matta
- Department of Chemistry, Osmania University, Hyderabad-500 007, India
| | - K Shiva Kumar
- Department of Chemistry, Osmania University, Hyderabad-500 007, India.,Department of Chemistry, School of Physical Sciences, Central University of Kerala, Kasaragod, Kerala 671320, India.
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4
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Yu T, Wang Y, Dong Y, Han D, Liu N, Wang B, Tang Y, Wei H. Dehydrogenative Syntheses of Biazoles via a "Pre-Join" Approach. JACS AU 2023; 3:80-85. [PMID: 36711107 PMCID: PMC9875268 DOI: 10.1021/jacsau.2c00597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 01/06/2023] [Accepted: 01/06/2023] [Indexed: 06/18/2023]
Abstract
The structural motif of biazoles is the predominant substructure of many natural products, pharmaceuticals, and organic materials. Considerable efforts have focused on synthesizing these compounds; however, a limited number of processes have been reported for the efficient formation of biazoles. Herein, we report a "pre-join" approach for the dehydrogenative synthesis of biazoles, which are challenging to prepare using conventional methods. A bench-stable and easily synthesized pyrazine-based group is critical for this transformation. This strategy enables the homocoupling of biazoles and the heterocoupling of two different azoles. Due to the broad substrate scope, this strategy exhibits potential for use in other fields, such as medicine, materials, and natural product chemistry.
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Affiliation(s)
- Tianyang Yu
- Key
Laboratory of Synthetic and Natural Functional Molecule of the Ministry
of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, People’s Republic of China
| | - Yan Wang
- Key
Laboratory of Synthetic and Natural Functional Molecule of the Ministry
of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, People’s Republic of China
| | - Yaqun Dong
- School
of Chemistry and Chemical Engineering, Nanjing
University of Science and Technology, Nanjing 210094, People’s Republic of China
| | - Derui Han
- Key
Laboratory of Synthetic and Natural Functional Molecule of the Ministry
of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, People’s Republic of China
| | - Ning Liu
- Xi’an
Modern Chemistry Research Institute, Xi’an 710065, People’s Republic of China
| | - Bozhou Wang
- Xi’an
Modern Chemistry Research Institute, Xi’an 710065, People’s Republic of China
| | - Yongxing Tang
- School
of Chemistry and Chemical Engineering, Nanjing
University of Science and Technology, Nanjing 210094, People’s Republic of China
| | - Hao Wei
- Key
Laboratory of Synthetic and Natural Functional Molecule of the Ministry
of Education, College of Chemistry & Materials Science, Northwest University, Xi’an 710069, People’s Republic of China
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5
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Bhaskaran RP, Nayak KH, Sreelekha MK, Babu BP. Progress in copper-catalysed/mediated intramolecular dehydrogenative coupling. Org Biomol Chem 2023; 21:237-251. [PMID: 36448561 DOI: 10.1039/d2ob01796b] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Transition metal-catalysed C-H functionalization reactions are one of the most efficient synthetic methodologies to construct carbon-carbon and carbon-heteroatom bonds. The initial developments in the field were largely dominated by expensive transition metal catalysts. However, in the past decade, the focus of the catalyst shifted to first-row transition metals and copper catalysis contributed significantly. Abundant, cost-effective, and less toxic copper catalysts are an ideal green alternative to palladium and similar metals. The intramolecular dehydrogenative coupling itself developed as a prominent area of focus as the strategy straightaway affords complex polycyclic scaffolds in one pot. Regioselective activation of inert C-H bonds were made possible with copper catalysts and interestingly, oxygen served as the terminal oxidant in most of the cases. In the present review the focus is on the intramolecular dehydrogenative coupling reactions between carbon-hydrogen and heteroatom-hydrogen bonds to afford carbon-carbon and carbon-hetero atom bonds, catalysed/mediated by copper salts. Though the intermolecular dehydrogenative coupling reactions of copper have already been reviewed more than once, to the best of our knowledge this is the first comprehensive account of copper-based intramolecular dehydrogenative coupling.
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Affiliation(s)
- Rasmi P Bhaskaran
- Department of Chemistry National Institute of Technology Karnataka Surathkal, Mangalore, India - 575025.
| | - Kalinga H Nayak
- Department of Chemistry National Institute of Technology Karnataka Surathkal, Mangalore, India - 575025.
| | - Mariswamy K Sreelekha
- Department of Chemistry National Institute of Technology Karnataka Surathkal, Mangalore, India - 575025.
| | - Beneesh P Babu
- Department of Chemistry National Institute of Technology Karnataka Surathkal, Mangalore, India - 575025.
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6
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Solvent Moisture-Controlled Self-Assembly of Fused Benzoimidazopyrrolopyrazines with Different Ring's Interposition. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27082460. [PMID: 35458661 PMCID: PMC9024467 DOI: 10.3390/molecules27082460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 04/07/2022] [Accepted: 04/07/2022] [Indexed: 11/23/2022]
Abstract
This article shows that two extremely important families of fused heterocyclic assemblies, namely 6-methylbenzo[4,5]imidazo[1,2-a]pyrrolo[2,1-c]pyrazine and 5a-methyl-5a,6-dihydro-5H,12H-benzo[4,5]imidazo[1,2-a]pyrrolo[1,2-d]pyrazine, can be synthesized from only two available building blocks (N-allenylpyrrole-2-carbaldehyde and o-phenylenediamine) by controlling only one reaction parameter (water content of the medium). It should be emphasized that the latter class of compounds (with an a/d arrangement) is previously unknown. If the allene group is introduced not into the starting compound, but during the reaction (in superbase media), a heterocyclic ensemble, 5-methylbenzo[4,5]imidazo[1,2-a]pyrrolo[2,1-c]pyrazines, with a different position of the methyl group is formed.
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7
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Zhao X, Yang F, Wang LL, Guo J, Xu YQ, Chen ZS, Ji K. Cu( ii)-Catalyzed C2-site functionalization of p-aminophenols: an approach for selective cross-dehydrogenative aminations. Org Chem Front 2022. [DOI: 10.1039/d1qo01675j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Site selective cross dehydrogenative aminations from precursors without preactivated C–H and N–H bonds have been challenging.
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Affiliation(s)
- Xin Zhao
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
- School of Pharmacy, Baotou Medical College, Baotou 014060, Inner Mongolia, P. R. China
| | - Fang Yang
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Lin-Lin Wang
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Jing Guo
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Yu-Qin Xu
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Zi-Sheng Chen
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
| | - Kegong Ji
- College of Chemistry and Pharmacy, Northwest A&F University; Shaanxi Key Laboratory of Natural Products & Chemical Biology, 3 Taicheng Road, Yangling, 712100, Shaanxi, P. R. China
- Guangdong Provincial Key Laboratory of Catalysis, Southern University of Science and Technology, Shenzhen 518055, China
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8
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Sahoo S, Pal S. Rapid Access to Benzimidazo[1,2- a]quinoline-Fused Isoxazoles via Pd(II)-Catalyzed Intramolecular Cross Dehydrogenative Coupling: Synthetic Versatility and Photophysical Studies. J Org Chem 2021; 86:4081-4097. [PMID: 33626283 DOI: 10.1021/acs.joc.0c02926] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
An efficient and atom-economical palladium-catalyzed intramolecular cross dehydrogenative coupling (CDC) reaction has been developed for the construction of highly π-conjugated benzimidazo[1,2-a]quinoline-fused isoxazole scaffolds using molecular oxygen as sole oxidant. The approach portrayed wide substrate scope with good functional group tolerance and depicted a useful tool for the generation of fluorescence active compounds with high quantum yield. Synthetic versatility of the method via Fe-catalyzed reductive isoxazole ring cleavage toward pyridine, pyrimidine, pyrazole fused heteropolycyclic compounds has been showcase.
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Affiliation(s)
- Subrata Sahoo
- Organic Chemistry Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
| | - Shantanu Pal
- Organic Chemistry Laboratory, School of Basic Sciences, Indian Institute of Technology Bhubaneswar, Argul, Odisha 752050, India
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9
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Liu A, Han Q, Zhang X, Li B, Huang Q. Transition-Metal-Controlled Synthesis of 11H-Benzo[a]carbazoles and 6-Alkylidene-6H-isoindo[2,1-a]indoles via Sequential Intermolecular/Intramolecular Cross-Dehydrogenative Coupling from 2-Phenylindoles. Org Lett 2019; 21:6839-6843. [DOI: 10.1021/acs.orglett.9b02476] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Anyi Liu
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P.R. China
| | - Qingshuai Han
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P.R. China
| | - Xiaofeng Zhang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P.R. China
| | - Buhong Li
- MOE Key Laboratory of Optoelectronic Science and Technology for Medicine, Fujian Key Laboratory for Photonics Technology, Fujian Normal University, Fuzhou, Fujian 350007, P.R. China
| | - Qiufeng Huang
- Fujian Key Laboratory of Polymer Materials, College of Chemistry & Materials Science, Fujian Normal University, Fuzhou, Fujian 350007, P.R. China
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10
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Shinde VN, Dhiman S, Krishnan R, Kumar D, Kumar A. Synthesis of imidazopyridine-fused indoles via one-pot sequential Knoevenagel condensation and cross dehydrogenative coupling. Org Biomol Chem 2019; 16:6123-6132. [PMID: 30094426 DOI: 10.1039/c8ob01449c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A simple and efficient strategy for the synthesis of imidazopyridine-fused indoles has been developed that involves one-pot sequential Knoevenagel condensation of readily available active methylene azoles with N-substituted-1H-indole-3-carboxaldehydes or N-substituted-1H-indole-2-carboxaldehydes followed by palladium-catalyzed intramolecular cross dehydrogenative coupling reaction. A series of 36 derivatives was prepared by using this strategy. The products were obtained in moderate to excellent (32-94%) yields and showed broad substrate scope with tolerance of various functional groups and was amiable for gram scale preparation without problems.
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Affiliation(s)
- Vikki N Shinde
- Department of Chemistry, BITS Pilani, Pilani Campus, Pilani 333031, India.
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11
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Srinivasulu V, Shehadeh I, Khanfar MA, Malik OG, Tarazi H, Abu-Yousef IA, Sebastian A, Baniowda N, O’Connor MJ, Al-Tel TH. One-Pot Synthesis of Diverse Collections of Benzoxazepine and Indolopyrazine Fused to Heterocyclic Systems. J Org Chem 2018; 84:934-948. [DOI: 10.1021/acs.joc.8b02878] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | | | | | | | | | - Imad A. Abu-Yousef
- College of Arts and Sciences, Department of Biology, Chemistry and Environmental Sciences, American University of Sharjah, Sharjah, UAE
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12
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Gandeepan P, Müller T, Zell D, Cera G, Warratz S, Ackermann L. 3d Transition Metals for C-H Activation. Chem Rev 2018; 119:2192-2452. [PMID: 30480438 DOI: 10.1021/acs.chemrev.8b00507] [Citation(s) in RCA: 1399] [Impact Index Per Article: 233.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
C-H activation has surfaced as an increasingly powerful tool for molecular sciences, with notable applications to material sciences, crop protection, drug discovery, and pharmaceutical industries, among others. Despite major advances, the vast majority of these C-H functionalizations required precious 4d or 5d transition metal catalysts. Given the cost-effective and sustainable nature of earth-abundant first row transition metals, the development of less toxic, inexpensive 3d metal catalysts for C-H activation has gained considerable recent momentum as a significantly more environmentally-benign and economically-attractive alternative. Herein, we provide a comprehensive overview on first row transition metal catalysts for C-H activation until summer 2018.
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Affiliation(s)
- Parthasarathy Gandeepan
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Thomas Müller
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Daniel Zell
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Gianpiero Cera
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Svenja Warratz
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie , Georg-August-Universität Göttingen , Tammannstraße 2 , 37077 Göttingen , Germany
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13
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Kong L, Sun Y, Zheng Z, Tang R, Wang M, Li Y. Chemoselective N–H or C-2 Arylation of Indole-2-carboxamides: Controllable Synthesis of Indolo[1,2-a]quinoxalin-6-ones and 2,3′-Spirobi[indolin]-2′-ones. Org Lett 2018; 20:5251-5255. [DOI: 10.1021/acs.orglett.8b02197] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lingkai Kong
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
- School of Chemistry and Chemical Engineering, Linyi University, Shuangling Road, Linyi, Shandong 276000, China
| | - Yue Sun
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Zhong Zheng
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Rong Tang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Mengdan Wang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
| | - Yanzhong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China
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14
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Seo DY, Kim G, Jo HY, Kim JN. Synthesis of Cyclopentadiindolyl Spirooxindoles via Palladium-catalyzed Intramolecular Oxidative Indole-Indole Coupling Reaction. B KOREAN CHEM SOC 2018. [DOI: 10.1002/bkcs.11432] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Da Young Seo
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
| | - Gieun Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
| | - Hwi Yul Jo
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
| | - Jae Nyoung Kim
- Department of Chemistry and Institute of Basic Science; Chonnam National University; Gwangju 500-757 South Korea
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15
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Samanta S, Hajra A. Regioselective synthesis of unsymmetrical biheteroaryls via copper(ii)-catalyzed cascade annulation. Chem Commun (Camb) 2018; 54:3379-3382. [DOI: 10.1039/c8cc00671g] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A facile and efficient copper-catalyzed cascade annulation of an imidazoheterocycle with salicylaldehyde, piperidine, and terminal alkyne was developed to afford unsymmetrical biheteroaryl derivatives in high yields.
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Affiliation(s)
| | - Alakananda Hajra
- Department of Chemistry
- Visva-Bharati (A Central University)
- India
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16
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Synthesis of Pyrrole-Annulated Heterocycles through Copper-Catalyzed Site-Selective Dehydrogenative Cross-Coupling. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700929] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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17
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Direct and Regioselective Introduction of Acetals into Imidazoles at the 2-Position by an Iridium-Catalyzed Reaction with Formates in the Presence of Hydrosilanes. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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18
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Mantenuto S, Ciccolini C, Lucarini S, Piersanti G, Favi G, Mantellini F. Palladium(II)-Catalyzed Intramolecular Oxidative C–H/C–H Cross-Coupling Reaction of C3,N-Linked Biheterocycles: Rapid Access to Polycyclic Nitrogen Heterocycles. Org Lett 2017; 19:608-611. [DOI: 10.1021/acs.orglett.6b03775] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Serena Mantenuto
- Department
of Biomolecular Sciences, Section of Organic Chemistry and Organic
Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Cecilia Ciccolini
- Department
of Biomolecular Sciences, Section of Organic Chemistry and Organic
Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Simone Lucarini
- Department
of Biomolecular Sciences, Section of Chemistry, University of Urbino “Carlo Bo”, Piazza Rinascimento 6, 61029 Urbino, Italy
| | - Giovanni Piersanti
- Department
of Biomolecular Sciences, Section of Chemistry, University of Urbino “Carlo Bo”, Piazza Rinascimento 6, 61029 Urbino, Italy
| | - Gianfranco Favi
- Department
of Biomolecular Sciences, Section of Organic Chemistry and Organic
Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
| | - Fabio Mantellini
- Department
of Biomolecular Sciences, Section of Organic Chemistry and Organic
Natural Compounds, University of Urbino “Carlo Bo”, Via I Maggetti 24, 61029 Urbino, Italy
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Tripathi KN, Ray D, Singh RP. Pd-Catalyzed regioselective intramolecular dehydrogenative C-5 cross coupling in anN-substituted pyrrole-azole system. Org Biomol Chem 2017; 15:10082-10086. [DOI: 10.1039/c7ob02676e] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A C5-selective intramolecular dehydrogenative cross coupling inN-substituted pyrrole-azoles in the presence of a reactive C2 position is achieved.
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Affiliation(s)
| | - Devalina Ray
- Department of Chemistry
- Indian Institute of Technology
- Delhi
- New Delhi
- India
| | - Ravi P. Singh
- Department of Chemistry
- Indian Institute of Technology
- Delhi
- New Delhi
- India
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Nandwana NK, Dhiman S, Shelke GM, Kumar A. Copper-catalyzed tandem Ullmann type C-N coupling and dehydrative cyclization: synthesis of imidazo[1,2-c]quinazolines. Org Biomol Chem 2016; 14:1736-41. [PMID: 26732527 DOI: 10.1039/c5ob02469b] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A simple and efficient one-pot protocol has been demonstrated for the synthesis of imidazo[1,2-c]quinazoline derivatives through a copper catalyzed tandem reaction between substituted 2-(2-bromophenyl)-1H-imidazoles and formamide. The synthetic protocol involves initial Ullmann-type C-N coupling followed by intramolecular dehydrative cyclization. The method uses readily available 2-(2-bromophenyl)-1H-imidazoles as the starting materials to afford imidazo[1,2-c]quinazolines in moderate to good yields and provided 610 mg (71%) yield of 3a from a gram scale reaction.
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Affiliation(s)
- Nitesh K Nandwana
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India.
| | - Shiv Dhiman
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India.
| | - Ganesh M Shelke
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India.
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, 333031 Rajasthan, India.
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