1
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Sanders MA, Chittari SS, Foley JR, Swofford WM, Elder BM, Knight AS. Leveraging Triphenylphosphine-Containing Polymers to Explore Design Principles for Protein-Mimetic Catalysts. J Am Chem Soc 2024; 146:17404-17413. [PMID: 38863219 DOI: 10.1021/jacs.4c05040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Complex interactions between noncoordinating residues are significant yet commonly overlooked components of macromolecular catalyst function. While these interactions have been demonstrated to impact binding affinities and catalytic rates in metalloenzymes, the roles of similar structural elements in synthetic polymeric catalysts remain underexplored. Using a model Suzuki-Miyuara cross-coupling reaction, we performed a series of systematic studies to probe the interconnected effects of metal-ligand cross-links, electrostatic interactions, and local rigidity in polymer catalysts. To achieve this, a novel bifunctional triphenylphosphine acrylamide (BisTPPAm) monomer was synthesized and evaluated alongside an analogous monofunctional triphenylphosphine acrylamide (TPPAm). In model copolymer catalysts, increased initial reaction rates were observed for copolymers untethered by Pd complexation (BisTPPAm-containing) compared to Pd-cross-linked catalysts (TPPAm-containing). Further, incorporating local rigidity through secondary structure-like and electrostatic interactions revealed nonmonotonic relationships between composition and the reaction rate, demonstrating the potential for tunable behavior through secondary-sphere interactions. Finally, through rigorous cheminformatics featurization strategies and statistical modeling, we quantitated relationships between chemical descriptors of the substrate and reaction conditions on catalytic performance. Collectively, these results provide insights into relationships among the composition, structure, and function of protein-mimetic catalytic copolymers.
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Affiliation(s)
- Matthew A Sanders
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Supraja S Chittari
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Jack R Foley
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - William M Swofford
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Bridgette M Elder
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Abigail S Knight
- Department of Chemistry, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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2
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Zhang X, Lu Y, Wang H, Chen M, Lin S, Huang X. Palladium-Catalyzed C2-Selective Direct Arylation of Benzo[ b]thiophene 1,1-Dioxides with Arylboronic Acids. ACS OMEGA 2024; 9:1738-1747. [PMID: 38222557 PMCID: PMC10785645 DOI: 10.1021/acsomega.3c08334] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 11/22/2023] [Accepted: 12/04/2023] [Indexed: 01/16/2024]
Abstract
A novel oxidative cross-coupling of benzo[b]thiophene 1,1-dioxides with arylboronic acids was reported. The efficient reaction occurred at the C2-position via C-H activation, followed by Pd(II)-catalyzed arylation. Furthermore, a series of C2-arylated products with significant photoluminescence properties have been synthesized and characterized, which illustrates the potential applications of our method in the aggregation-induced emission field.
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Affiliation(s)
- Xinwei Zhang
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Yaoyao Lu
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Hongzhen Wang
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Mengting Chen
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Shuizhen Lin
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
| | - Xiaolei Huang
- Key Laboratory of the Ministry of Education
for Advanced Catalysis Materials, College of Chemistry and Materials
Science, Zhejiang Normal University, Jinhua, Zhejiang 321004, China
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3
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Yang Q, Hu Y, Kong X, Lei YZ. Copper-Catalyzed, Regioselective, Unsymmetrical Homocoupling of Quinoxalin-2(1 H)-ones to Form C-N Homodimers. J Org Chem 2023; 88:14274-14282. [PMID: 37774417 DOI: 10.1021/acs.joc.3c00544] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
An environmentally benign and efficient method for the synthesis of unsymmetrical diquinoxalin-2(1H)-ones with potential axial chirality via inexpensive copper-catalyzed, low-toxicity, and stable PIFA oxidation, rarely assisted by PhSeSePh, regioselective homocoupling of quinoxalin-2(1H)-ones under mild conditions is developed. This practical scheme is compatible with a variety of functional groups and allows the preparation of functionalized unsymmetrical dimeric quinoxalin-2(1H)-ones from readily available and safe starting materials, providing new ideas for the sustainable development of methodological studies of quinoxalin-2(1H)-ones.
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Affiliation(s)
- Qiming Yang
- Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, Guizhou 553004, PR China
| | - Yueyue Hu
- Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, Guizhou 553004, PR China
| | - Xiangtao Kong
- Henan Key Laboratory of New Optoelectronic Functional Materials, College of Chemistry and Chemical Engineering, Anyang Normal University, Anyang 455000, China
| | - Yi-Zhu Lei
- Guizhou Provincial Key Laboratory of Coal Clean Utilization, School of Chemistry and Materials Engineering, Liupanshui Normal University, Liupanshui, Guizhou 553004, PR China
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4
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Rezaei-Gohar M, Amiri K, Aghaie K, Nayebzadeh B, Ariafard A, Shiri F, Rominger F, Dar'in D, Krasavin M, Balalaie S. Domino Cyclization Reaction of o-Diisocyanoarenes for the Synthesis of Imidazo[1,2- a]pyridinobenzimidazole Backbones. Org Lett 2023. [PMID: 37487026 DOI: 10.1021/acs.orglett.3c02137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/26/2023]
Abstract
An efficient procedure to access a variety of connected imidazo[1,2-a]pyridine and benzimidazole skeletons through the C-N bond was described as a new type of Buchwald-Hartwig reaction. Furthermore, the bis(imidazo[1,2-a]pyridin-3-yl)aryl-1,2-diamine scaffolds were obtained by changing the equivalent ratio of the starting materials. Some advantages of the protocol are the formation of four new bonds (C═C, C-N), a transition-metal-free reaction, a broad substrate scope, high yields, and mild reaction conditions. The reaction mechanism was confirmed on the basis of DFT calculations.
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Affiliation(s)
- Mohammad Rezaei-Gohar
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
| | - Kamran Amiri
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
| | - Kimia Aghaie
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
| | - Behrouz Nayebzadeh
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
| | - Alireza Ariafard
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
- School of Natural Sciences-Chemistry, University of Tasmania, Private Bag 75, Hobart, Tasmania 7001, Australia
| | - Farshad Shiri
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran 1469669191, Iran
| | - Frank Rominger
- Organisch-Chemisches Institut der Universität Heidelberg, Im Neuenheimer Feld 271, D-69120 Heidelberg, Germany
| | - Dmitry Dar'in
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Mikhail Krasavin
- Saint Petersburg State University, Saint Petersburg 199034, Russian Federation
| | - Saeed Balalaie
- Peptide Chemistry Research Institute, K. N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Iran
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5
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Devarajan K, Sivakalai M, Basu SM, Biswas C, Chauhan M, Hasan U, Panneerselvam Y, Narayanan UM, Raavi SSK, Giri J, Panda TK. Design and synthesis of photostable triphenylamine based neutral AIE nano luminogens: specific and long-term tracking of mitochondria in cells. Biomater Sci 2023; 11:3938-3951. [PMID: 37093244 DOI: 10.1039/d3bm00043e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2023]
Abstract
With the increasing dependence on fluorescence bioimaging, luminogens with aggregation-induced emission (AIE) properties have gained significant attention due to their excellent photostabilization, minimal photobleaching, high reliability, and superior biocompatibility. Since mitochondria are crucial subcellular organelles in eukaryotic cells with important biological functions, organelle-specific AIE emitters with distinct functions have been highly sought after, but with limited success using simple synthetic methods. Here, we describe a strategy for synthesizing two triphenylamine (TPA) based acrylonitriles, tethered to different donor groups, TPA and phenothiazine (PTZ), respectively, with superior AIE properties using Suzuki coupling. We conducted a systematic and detailed experimental analysis of the structural characteristics of both AIE luminogens, which exhibited excellent photostability, a large Stokes shift, and bright solid-state emission. A cell viability study carried out with F1 and F2 dyes revealed that both luminogens exhibited excellent biocompatibility. Based on fluorescence experiments, F2 displayed excellent AIE characteristics, permeability, biocompatibility, and photostability compared to rhodamine 123, allowing it to selectively stain and track mitochondria in cancer cells over an extended period of time. The Pearson correlation coefficient of F2 and rhodamine 123 was estimated to have an r-value of 0.99. Our findings are expected to provide insight into the synthesis of an extensive archive of AIE-based acrylonitriles with fascinating properties for mitochondrial staining.
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Affiliation(s)
| | - Mayakrishnan Sivakalai
- Organic & Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Chennai, 600020, India.
- CSIR-North East Institute of Science & Technology (NEIST), Branch Laboratory, Imphal-795004, Manipur, India
| | - Suparna Mercy Basu
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, India.
| | - Chinmoy Biswas
- Department of Physics, Indian Institute of Technology Hyderabad, 502 285, India.
| | - Meenakshi Chauhan
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, India.
| | - Uzma Hasan
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, India.
- Department of Biotechnology, Indian Institute of Technology Hyderabad, Telangana, India
| | - Yuvaraj Panneerselvam
- CSIR-North East Institute of Science & Technology (NEIST), Branch Laboratory, Imphal-795004, Manipur, India
| | - Uma Maheswari Narayanan
- Organic & Bioorganic Chemistry Laboratory, CSIR-Central Leather Research Institute, Chennai, 600020, India.
| | | | - Jyotsnendu Giri
- Department of Biomedical Engineering, Indian Institute of Technology Hyderabad, Telangana, India.
| | - Tarun K Panda
- Department of Chemistry, Indian Institute of Technology Hyderabad, 502285, India.
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6
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Yang B, Lu Y, Duan L, Ma X, Xia Y, Huang X. Palladium-Catalyzed C2-Selective Oxidative Olefination of Benzo[ b]thiophene 1,1-Dioxides with Styrenes and Acrylates. ACS OMEGA 2023; 8:10100-10110. [PMID: 36969423 PMCID: PMC10034782 DOI: 10.1021/acsomega.2c07427] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Accepted: 01/30/2023] [Indexed: 06/18/2023]
Abstract
Here, we disclose a novel Pd(II)-catalyzed oxidative Heck reaction of benzo[b]thiophene 1,1-dioxides with styrenes and acrylates. This transformation features broad functional group tolerance and high C2 selectivity. Furthermore, the photoluminescence properties of C-2 alkenylated products have been characterized, which illustrates the potential usefulness of our protocol in constructing π-conjugated fluorescent molecules.
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7
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Li S, Lei L, Feng B, Liu X, Xian L, Li Y. N-Iodosuccinimide-Mediated Synthesis of Benzo-Fused Bisimidazoles Enabled by a One-Pot Tandem Reaction of Fluorinated Propargyl Amidines. J Org Chem 2023; 88:4101-4111. [PMID: 36926882 DOI: 10.1021/acs.joc.2c02379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023]
Abstract
A N-iodosuccinimide (NIS)-mediated divergent and efficient tandem reaction between fluorinated propargyl amidines and aromatic o-diamines without any metal catalyst and additive under mild reaction conditions was developed for the synthesis of benzo-fused bisimidazoles in moderate to excellent yields. Preliminary mechanistic studies suggested that this reaction proceeded by an intermediate of secondary amine derived from 5-iodomethyl imidazole, and NIS played another role of oxidation reagent to promote the formation of a benzimidazole motif.
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Affiliation(s)
- Shan Li
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Lu Lei
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Bin Feng
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Xiaofeng Liu
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Liqing Xian
- Guangxi Key Laboratory of Urban Water Environment, Key laboratory of Regional Ecological Environment Analysis and Pollution Control of West Guangxi, College of Chemistry and Environment Engineering, Baise University, 21 Zhongshan No.2 Road, Baise 533000, China
| | - Yajun Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, University of Chinese Academy of Sciences, 155 Yangqiao Road West, Fuzhou 350002, China
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8
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Pati BV, Puthalath NN, Banjare SK, Nanda T, Ravikumar PC. Transition metal-catalyzed C-H/C-C activation and coupling with 1,3-diyne. Org Biomol Chem 2023; 21:2842-2869. [PMID: 36917476 DOI: 10.1039/d3ob00238a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
This review provides a broad overview of the recent developments in the field of transition metal-catalyzed C-H/C-C bond activation and coupling with 1,3-diyne for assembling alkynylated heterocycles, bis-heterocycles, and 1,3-enynes. Transition metal-catalyzed inert bond (C-H/C-C) activation has been the focus of attention among synthetic chemists in recent times. Enormous developments have taken place in C-H/C-C bond activation chemistry in the last two decades. In recent years the use of 2π-unsaturated units as coupling partners for the synthesis of heterocycles through C-H/C-C bond activation and annulation sequence has received immense attention. Among the unsaturated units employed for assembling heterocycles, the use of 1,3-diynes has garnered significant attention due to its ability to render bis-heterocycles in a straightforward manner. The C-H bond activation and coupling with 1,3-diyne has been very much explored in recent years. However, the development of strategies for the use of 1,3-diynes in the analogous C-C bond activation chemistry is less explored. Earlier methods employed to assemble bis-heterocycle used heterocycles that were preformed and pre-functionalized via transition metal-catalyzed coupling reactions. The expensive pre-functionalized halo-heterocycles and sensitive and expensive heterocyclic metal reagents limit its broad application. However, the transition metal-catalyzed C-H activation obviates the need for expensive heterocyclic metal reagents and pre-functionalized halo-heterocycles. The C-H bond activation strategy makes use of C-H bonds as functional groups for effecting the transformation. This renders the overall synthetic sequence both step and cost economic. Hence, this strategy of C-H activation and subsequent reaction with 1,3-diyne could be used for the larger-scale synthesis of chemicals in the pharmaceutical industry. Despite these advances, there is still the possibility of exploration of earth-abundant and cost-effective first-row transition metals (Ni, Cu, Mn. Fe, etc.) for the synthesis of bis-heterocycles. Moreover, the Cp*-ligand-free, simple metal-salt-mediated synthesis of bis-heterocycles is also less explored. Thus, more exploration of reaction conditions for the Cp*-free synthesis of bis-heterocycles is called for. We hope this review will inspire scientists to investigate these unexplored domains.
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Affiliation(s)
- Bedadyuti Vedvyas Pati
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Nitha Nahan Puthalath
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Shyam Kumar Banjare
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Tanmayee Nanda
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
| | - Ponneri C Ravikumar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Odisha 752050, India. .,Homi Bhabha National Institute, Training School Complex, Anushaktinagar, Mumbai 400094, India
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9
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Synthesis and antifungal activities of novel trifluoroethane derivatives with coumarin, indole and thiophene. JOURNAL OF SAUDI CHEMICAL SOCIETY 2022. [DOI: 10.1016/j.jscs.2022.101572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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10
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Synthesis of biheteroaryls via 2-methyl quinoline C(sp3)-H functionalization under metal-free conditions. GREEN SYNTHESIS AND CATALYSIS 2022. [DOI: 10.1016/j.gresc.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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11
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Li B, Luo B, Yang H, Tang W. Heck Reaction of
N
‐Heteroaryl Halides for the Concise Synthesis of Chiral α‐Heteroaryl‐substituted Heterocycles. Angew Chem Int Ed Engl 2022; 61:e202209087. [DOI: 10.1002/anie.202209087] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Bowen Li
- School of Chemistry and Materials Science Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences 1 Sub-lane Xiangshan Hangzhou 310024 China
| | - Bangke Luo
- State Key Laboratory of Bio-Organic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - He Yang
- State Key Laboratory of Bio-Organic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
| | - Wenjun Tang
- School of Chemistry and Materials Science Hangzhou Institute for Advanced Study University of Chinese Academy of Sciences 1 Sub-lane Xiangshan Hangzhou 310024 China
- State Key Laboratory of Bio-Organic and Natural Products Chemistry Center for Excellence in Molecular Synthesis Shanghai Institute of Organic Chemistry University of Chinese Academy of Sciences 345 Lingling Road Shanghai 200032 China
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12
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Ruthenium (II) catalysed regioselective C-2ʹ-alkenylation of 2-phenylimidazo[1,2-a]pyridine-3-carbaldehydes. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.132956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Anusha G, Indira M, Kumar IS, Sarma LS, Reddy KR, Govardhana Reddy PV, Aminabhavi TM. Synthesis of bis-1,3-(benz)azoles catalyzed by palladium-PEPPSI complex-based catalysts and the study of photophysical properties. CHEMOSPHERE 2022; 301:134751. [PMID: 35490757 DOI: 10.1016/j.chemosphere.2022.134751] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/13/2022] [Revised: 04/10/2022] [Accepted: 04/24/2022] [Indexed: 06/14/2023]
Abstract
Many biologically potent molecules have been identified to consist of benzo [b]azoles skeleton that are regarded to be the most important drug targets. Specifically, bis-benzo azoles have been the privileged conjugated structures due to their broad applications in environmental catalysis, and synthesis of various polymers, advanced materials, ligands, and natural products. Considering the significant features, different approaches have been attempted to synthesize such molecules via C-H activations by utilizing the transition metal complexes. In this study, we have developed facile and efficient Pd-based N-heterocyclic carbene (NHC) complexes, i.e., Pd-PEPPSI (Palladium-Pyridine Enhanced Pre-catalyst Preparation Stabilization and Initiation) catalysts that could successfully activate C-H bond and construct C-C bond between two 1,3-(benz)azoles via intermolecular oxidative homo-coupling reaction. The prepared Pd NHC catalysts were characterized by NMR and XPS. Pd NHCs concern about the special electronic and steric factors as the strong σ-donating and poor π-accepting properties of these nuclei renders great diversity in the field of transition metal catalysis as ancillary ligands and catalysts. Key factors of this methodology include low catalyst load, good substrate scope (even with sterically hindered substituted components), but no necessity of any extraneous ligands/oxidants and working at ambient reaction conditions with good to excellent yields of the products. Further, the targeted bis azole molecules have been characterized by single-crystal X-ray diffraction (XRD), nuclear magnetic resonance (NMR), and cyclic voltammetric (CV) studies. The fluorescence and absorption spectra of a few of the synthesized compounds revealed that the electron-donating groups present on N-substituent dictate the absorption and emission bands.
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Affiliation(s)
- Gokanapalli Anusha
- Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, India
| | - Meeniga Indira
- Department of Chemistry, Yogi Vemana University, Kadapa, Andhra Pradesh 516005, India
| | - Irla Siva Kumar
- Raman Research Institute, Bengaluru, Karnataka 560080, India
| | | | - Kakarla Raghava Reddy
- School Chemical Biomolecular Engineering, The University of Sydney, Sydney, NSW 2006, Australia.
| | | | - Tejraj M Aminabhavi
- School of Advanced Sciences, KLE Technological University, Hubballi, 580 031, Karnatak, India; Chandigarh University, NH-95 Chandigarh-Ludhiana Highway, Mohali, Punjab, India.
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14
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Li B, Luo B, Yang H, Tang W. Heck Reaction of N‐Heteroaryl Halides for the Concise Synthesis of Chiral α‐Heteroaryl‐substituted Heterocycles. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202209087] [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)
- Bowen Li
- Shanghai Institute Of Organic Chemistry State Key Laboratory of Bioorganic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Bangke Luo
- Shanghai Institute Of Organic Chemistry State Key Laboratory of Bioorganic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - He Yang
- Shanghai Institute Of Organic Chemistry State Key Laboratory of Bioorganic Chemistry State Key Laboratory of Bioorganic and Natural Products Chemistry CHINA
| | - Wenjun Tang
- Shanghai Institute of Organic Chemistry State Key Laboratory of Bio-Organic and Natural Products Chemistry 345 Ling Ling Road 200032 Shanghai CHINA
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15
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Zhou J, Shi X, Zheng H, Chen G, Zhang C, Liu X, Cao H. Deconstructive Cycloaromatization Strategy toward N, O-Bidentate Ligands from Indolizines and Cyclopropenones. Org Lett 2022; 24:3238-3243. [PMID: 35446037 DOI: 10.1021/acs.orglett.2c01030] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The innovative construction of novel N,O-bidentate ligands represents a long-standing challenge for chemists. Here, we report an unprecedented approach for the construction of N,O-bidentate derivatives via the merging of ring deconstruction with cycloaromatization of indolizines and cyclopropenones. Without any catalysts, our method can deliver a series of polyaryl 2-(pyridin-2-yl)phenols in excellent yields. In addition, N,O-bidentate organic BF2 complexes can also be constructed via this one-pot protocol.
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Affiliation(s)
- Jinlei Zhou
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Xiaotian Shi
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Huitao Zheng
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Guangxian Chen
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Chen Zhang
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Xiang Liu
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
| | - Hua Cao
- School of Chemistry and Chemical Engineering and Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan 528458, P. R. China
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16
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Fernandes R, Mhaske K, Balhara R, Jindal G, Narayan R. Copper-Catalyzed Aerobic Cross-Dehydrogenative Coupling of β-Oxime Ether Furan with Indole. Chem Asian J 2022; 17:e202101369. [PMID: 35146932 DOI: 10.1002/asia.202101369] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/30/2022] [Indexed: 11/09/2022]
Abstract
Heterobiaryls serve as relevant structural motifs in many fields of high applicative importance such as drugs, agrochemicals, organic functional materials etc. Cross-dehydrogenative coupling involving direct oxidation of two C-H bonds to construct a C-C bond is actively being pursued as a more benign and 'greener' alternative for synthesizing heterobiaryls. Herein, we report a Cu(I)-catalyzed cross-dehydrogenative coupling of indoles and furans, two of the most important aromatic heterocycles using air as the terminal oxidant. The reaction proceeds with regio- and chemoselectivity to give the cross-coupled products in good to excellent yields generally. A broad substrate scope with respect to both the coupling partners has been demonstrated to prove the generality of this reaction. This represents the hitherto unexplored cross-dehydrogenative coupling methodology to obtain an indole-furan biaryl motif.
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Affiliation(s)
- Rushil Fernandes
- School of Chemical and Materials Sciences (SCMS), Indian Institute of Technology (IIT) Goa GEC Campus, Farmagudi, Ponda, Goa-403401, India
| | - Krishna Mhaske
- School of Chemical and Materials Sciences (SCMS), Indian Institute of Technology (IIT) Goa GEC Campus, Farmagudi, Ponda, Goa-403401, India
| | - Reena Balhara
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, Karnataka, India
| | - Garima Jindal
- Department of Organic Chemistry, Indian Institute of Science, Bangalore-560012, Karnataka, India
| | - Rishikesh Narayan
- School of Chemical and Materials Sciences (SCMS), Indian Institute of Technology (IIT) Goa GEC Campus, Farmagudi, Ponda, Goa-403401, India
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17
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Cobalt-catalyzed cross-coupling of nitrogen-containing heterocyclic phosphonium salts with arylmagnesium reagents. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.153662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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18
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4,5‐Dihydro‐imidazol‐2‐ylidene‐linked palladium complexes as catalysts for the direct CH bond arylation of azoles. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6551] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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19
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Majumder S, Ghosh S, Pyne P, Ghosh A, Ghosh D, Hajra A. Synthesis of Unsymmetrical Biheteroarenes via Dehydrogenative and Decarboxylative Coupling: a Decade Update. CHEM REC 2021; 22:e202100288. [PMID: 34970849 DOI: 10.1002/tcr.202100288] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 12/13/2021] [Accepted: 12/17/2021] [Indexed: 12/22/2022]
Abstract
The design and development of robust and efficient methods for installing one heterocycle with another is endowed as a ubiquitous and powerful synthetic strategy to access complex organic biheterocycles in recent days due to their pervasive applications in medicinal as well as material chemistry. This perspective presents an overview on the recent findings and developments for the synthesis of unsymmetrical biheteroarenes via dehydrogenative and decarboxylative couplings with literature coverage mainly extending from 2011 to 2021. For simplification of the readers, the article has been subcategorized based on the catalysts used in the reactions.
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Affiliation(s)
- Souvik Majumder
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Sumit Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Pranjal Pyne
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Anogh Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
| | - Debashis Ghosh
- Department of Chemistry, St. Joseph's College (Autonomous), Bangalore, 560027, Karnataka, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, India
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20
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Kang K, Loud NL, DiBenedetto TA, Weix DJ. A General, Multimetallic Cross-Ullmann Biheteroaryl Synthesis from Heteroaryl Halides and Heteroaryl Triflates. J Am Chem Soc 2021; 143:21484-21491. [PMID: 34918908 PMCID: PMC9007723 DOI: 10.1021/jacs.1c10907] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Despite their importance to medicine and materials science, the synthesis of biheteroaryls by cross-coupling remains challenging. We describe here a new, general approach to biheteroaryls: the Ni- and Pd-catalyzed multimetallic cross-Ullmann coupling of heteroaryl halides with triflates. An array of 5-membered, 6-membered, and fused heteroaryl bromides and chlorides, as well as aryl triflates derived from heterocyclic phenols, proved to be viable substrates in this reaction (62 examples, 63 ± 17% average yield). The generality of this approach to biheteroaryls was further demonstrated in 96-well plate format at 10 μmol scale. An array of 96 possible products provided >90% hit rate under a single set of conditions. Further, low-yielding combinations could be rapidly optimized with a single "Toolbox Plate" of ligands, additives, and reductants.
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Affiliation(s)
- Kai Kang
- University of Wisconsin-Madison, Madison, WI 53706, USA
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21
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Long Q, Zou K, Dong W, Xie D, An D. Palladium-catalyzed oxidative annulation of N-(8-quinolinyl) aryl carboxamides with 1-aryl-2-tosyloxy ethanones. SYNTHETIC COMMUN 2021. [DOI: 10.1080/00397911.2021.1952433] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Qinghuang Long
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Keran Zou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Wanrong Dong
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
| | - Dexun Xie
- Aneo Chem-Tech Co., Ltd., Guangzhou, China
| | - Delie An
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha, China
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22
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Zhao B, Rogge T, Ackermann L, Shi Z. Metal-catalysed C-Het (F, O, S, N) and C-C bond arylation. Chem Soc Rev 2021; 50:8903-8953. [PMID: 34190223 DOI: 10.1039/c9cs00571d] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The formation of C-aryl bonds has been the focus of intensive research over the last decades for the construction of complex molecules from simple, readily available feedstocks. Traditionally, these strategies involve the coupling of organohalides (I, Br, Cl) with organometallic reagents (Mg, Zn, B, Si, Sn,…) such as Kumada-Corriu, Negishi, Suzuki-Miyaura, Hiyama and Sonogashira cross-couplings. More recently, alternative methods have provided access to these products by reactions with less reactive C-Het (F, O, S, N) and C-C bonds. Compared to traditional methods, the direct cleavage and arylation of these chemical bonds, the essential link in accessible feedstocks, has become increasingly important from the viewpoint of step-economy and functional-group compatibility. This comprehensive review aims to outline the development and advances of this topic, which was organized into (1) C-F bond arylation, (2) C-O bond arylation, (3) C-S bond arylation, (4) C-N bond arylation, and (5) C-C bond arylation. Substantial attention has been paid to the strategies and mechanistic investigations. We hope that this review can trigger chemists to discover more efficient methodologies to access arylation products by cleavage of these C-Het and C-C bonds.
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Affiliation(s)
- Binlin Zhao
- State Key Laboratory of Coordination Chemistry, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China.
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23
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Kumaran S, Parthasarathy K. Rh(III)-Catalyzed Oxidative C-2 Coupling of N-Pyridinylindoles with Benzo[ b]thiophene 1,1-Dioxides via C-H Bond Activation. J Org Chem 2021; 86:7987-7999. [PMID: 34096307 DOI: 10.1021/acs.joc.1c00301] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An efficient Rh(III)-catalyzed cross-dehydrogenative coupling of N-pyridinylindoles with benzo[b]thiophene 1,1-dioxides has been developed through directing-group-assisted C-H activation. This transformation constructs a new C-C bond from two inert C-H bonds in a one-pot reaction. The present reaction is compatible with various functional groups with respect to indoles and benzothiophene[b] 1,1-dioxides. Furthermore, the emission properties of synthesized compounds have been explored.
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Affiliation(s)
- Subramani Kumaran
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu 600025, India
| | - Kanniyappan Parthasarathy
- Department of Organic Chemistry, University of Madras, Guindy Campus, Chennai, Tamilnadu 600025, India
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24
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Cook XAF, de Gombert A, McKnight J, Pantaine LRE, Willis MC. The 2-Pyridyl Problem: Challenging Nucleophiles in Cross-Coupling Arylations. Angew Chem Int Ed Engl 2021; 60:11068-11091. [PMID: 32940402 PMCID: PMC8246887 DOI: 10.1002/anie.202010631] [Citation(s) in RCA: 63] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Indexed: 12/22/2022]
Abstract
Azine-containing biaryls are ubiquitous scaffolds in many areas of chemistry, and efficient methods for their synthesis are continually desired. Pyridine rings are prominent amongst these motifs. Transition-metal-catalysed cross-coupling reactions have been widely used for their synthesis and functionalisation as they often provide a swift and tuneable route to related biaryl scaffolds. However, 2-pyridine organometallics are capricious coupling partners and 2-pyridyl boron reagents in particular are notorious for their instability and poor reactivity in Suzuki-Miyaura cross-coupling reactions. The synthesis of pyridine-containing biaryls is therefore limited, and methods for the formation of unsymmetrical 2,2'-bis-pyridines are scarce. This Review focuses on the methods developed for the challenging coupling of 2-pyridine nucleophiles with (hetero)aryl electrophiles, and ranges from traditional cross-coupling processes to alternative nucleophilic reagents and novel main group approaches.
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Affiliation(s)
- Xinlan A. F. Cook
- Chemistry Research LaboratoryOxford University12 Mansfield RoadOxfordOX1 3TAUK
| | - Antoine de Gombert
- Chemistry Research LaboratoryOxford University12 Mansfield RoadOxfordOX1 3TAUK
| | - Janette McKnight
- Chemistry Research LaboratoryOxford University12 Mansfield RoadOxfordOX1 3TAUK
| | - Loïc R. E. Pantaine
- Chemistry Research LaboratoryOxford University12 Mansfield RoadOxfordOX1 3TAUK
| | - Michael C. Willis
- Chemistry Research LaboratoryOxford University12 Mansfield RoadOxfordOX1 3TAUK
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25
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Bansal S, Shabade AB, Punji B. Advances in C(
sp
2
)−H/C(
sp
2
)−H Oxidative Coupling of (Hetero)arenes Using 3d Transition Metal Catalysts. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202001498] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sadhna Bansal
- Organometallic Synthesis and Catalysis Lab Chemical Engineering Division CSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Anand B. Shabade
- Organometallic Synthesis and Catalysis Lab Chemical Engineering Division CSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Lab Chemical Engineering Division CSIR-National Chemical Laboratory (CSIR-NCL) Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201 002 India
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26
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Bruña S, Kennedy AR, Fairley M, O'Hara CT. Facile Access to Hetero-poly-functional Arenes and meta-Substituted Arenes via Two-Step Dimetalation and Mg/Halogen-Exchange Protocol. Chemistry 2021; 27:4134-4140. [PMID: 33201552 DOI: 10.1002/chem.202004696] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Indexed: 11/07/2022]
Abstract
The Grignard reagent, iPrMgCl and its lithium chloride-enhanced 'turbo' derivative iPrMgCl⋅LiCl have been employed to investigate the single iodo/magnesium exchange reactions of the trisubstituted arenes, 2,5-diiodo-N,N-diisopropylbenzamide 1, 1,4-diiodo-2-methoxybenzene 2, and 1,4-diiodo-2-(trifluoromethyl)benzene 3. These three arenes themselves were initially prepared by a double ortho-, meta'-deprotonation of N,N-diisopropylbenzamide, anisole and (trifluoromethyl)benzene, respectively, using the sodium magnesiate reagent [Na4 Mg2 (TMP)6 (nBu)2 ] (where TMP is 2,2,6,6-tetramethylpiperidide), and subsequent electrophilic quenching with iodine/THF solution. Thus, by following a combined deprotonation and magnesium/halogen exchange strategy, the simple monosubstituted arenes can be converted to trisubstituted diiodoarenes, which can ultimately be transformed into the corresponding mono-magnesiated arenes, in THF at -40 °C, within seconds in good yields. The other functional group (OMe, NiPr2 or CF3 respectively) present on the di-iodoarenes helps direct the exchange reaction to the ortho position, whereas subsequent addition of different electrophiles permits the preparation of hetero-poly-functional-arenes, with three different substituents in their structure. Intriguingly, if water is used as the electrophile, a new and facile route to prepare meta-substituted arenes, which cannot be easily obtained by conventional processes, is forthcoming. In contrast to directed ortho-metalation (DoM) chemistry, this reaction sequence can be thought of as InDirect meta-Metalation (IDmM). The scope of the chemistry has been tested further by exposing the initial unreacted iodo-functionality at the meta-position to a second Mg/I-exchange reaction and subsequent functionalization.
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Affiliation(s)
- Sonia Bruña
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland
| | - Alan R Kennedy
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland
| | - Michael Fairley
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland
| | - Charles T O'Hara
- Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, Scotland
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27
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Bag D, Sawant SD. Heteroarene-tethered Functionalized Alkyne Metamorphosis. Chemistry 2021; 27:1165-1218. [PMID: 32603015 DOI: 10.1002/chem.202002154] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Indexed: 12/11/2022]
Abstract
Heteroarene-tethered functionalized alkynes are multipotent synthons in organic chemistry. This detailed Review described herein offers a thorough discussion of the metamorphosis of heteroarene-tethered functionalized alkynes, an area which has earned much attention over the past decade in the straightforward synthesis of architecturally complex heterocyclic scaffolds in atom and step economic manner. Depending upon the variety of functionalized alkynes, this Review is divided into multiple sections. Amongst the vast array of synthetic transformations covered, dearomatizing spirocyclizations and cascade spirocyclization/rearrangement are of great interest. Synthetic transformations involving the heteroarene-tethered functionalized alkynes with scope, challenges, limitations, mechanism, their application in the total synthesis of natural products and future perceptions are surveyed.
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Affiliation(s)
- Debojyoti Bag
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
| | - Sanghapal D Sawant
- Laboratory 212, Medicinal Chemistry Division, CSIR-Indian Institute of Integrative Medicine Jammu, Canal Road, Jammu, Jammu and Kashmir, 180001, India
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28
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Cui YY, Li WX, Ma NN, Shen C, Zhou X, Chu XQ, Rao W, Shen ZL. Nickel-catalyzed direct cross-coupling of heterocyclic phosphonium salts with aryl bromides. Org Chem Front 2021. [DOI: 10.1039/d1qo01474a] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
The cross-couplings of heterocyclic phosphonium salts with aryl bromides proceeded effectively in the presence of nickel(ii) catalyst, bipyridine ligand, magnesium, and LiCl, providing an easy entry to 4-arylated pyridines, quinolines, and pyrazines.
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Affiliation(s)
- Yan-Ying Cui
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Wen-Xin Li
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Na-Na Ma
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Chuanji Shen
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Xiaocong Zhou
- College of Biological, Chemical Science and Engineering, Jiaxing University, 118 Jiahang Road, Jiaxing 314001, China
| | - Xue-Qiang Chu
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
| | - Weidong Rao
- Jiangsu Provincial Key Lab for the Chemistry and Utilization of Agro-Forest Biomass, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Zhi-Liang Shen
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China
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29
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Cook XAF, Gombert A, McKnight J, Pantaine LRE, Willis MC. The 2‐Pyridyl Problem: Challenging Nucleophiles in Cross‐Coupling Arylations. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202010631] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Xinlan A. F. Cook
- Chemistry Research Laboratory Oxford University 12 Mansfield Road Oxford OX1 3TA UK
| | - Antoine Gombert
- Chemistry Research Laboratory Oxford University 12 Mansfield Road Oxford OX1 3TA UK
| | - Janette McKnight
- Chemistry Research Laboratory Oxford University 12 Mansfield Road Oxford OX1 3TA UK
| | - Loïc R. E. Pantaine
- Chemistry Research Laboratory Oxford University 12 Mansfield Road Oxford OX1 3TA UK
| | - Michael C. Willis
- Chemistry Research Laboratory Oxford University 12 Mansfield Road Oxford OX1 3TA UK
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30
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Lapuh MI, Mazeh S, Besset T. Chiral Transient Directing Groups in Transition-Metal-Catalyzed Enantioselective C–H Bond Functionalization. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03317] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Maria I. Lapuh
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Sara Mazeh
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
| | - Tatiana Besset
- Normandie Univ, INSA Rouen, UNIROUEN, CNRS, COBRA (UMR 6014), 76000 Rouen, France
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31
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Tan G, Schrader ML, Daniliuc C, Strieth‐Kalthoff F, Glorius F. C‐H‐Aktivierungsbasierte einstufige kupferkatalysierte Synthese von N,O‐bidentaten organischen Difluorborkomplexen. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202008311] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Guangying Tan
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Malte L. Schrader
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Constantin Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Felix Strieth‐Kalthoff
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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32
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Tan G, Schrader ML, Daniliuc C, Strieth‐Kalthoff F, Glorius F. C−H Activation Based Copper‐Catalyzed One‐Shot Synthesis of N,O‐Bidentate Organic Difluoroboron Complexes. Angew Chem Int Ed Engl 2020; 59:21541-21545. [DOI: 10.1002/anie.202008311] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Guangying Tan
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Malte L. Schrader
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Constantin Daniliuc
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Felix Strieth‐Kalthoff
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
| | - Frank Glorius
- Organisch-Chemisches Institut Westfälische Wilhelms-Universität Münster Corrensstraße 40 48149 Münster Germany
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33
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Sarkar W, Bhowmik A, Das S, Sulekha AB, Mishra A, Deb I. Iridium-catalyzed direct C-H arylation of cyclic N-sulfonyl ketimines with arylsiloxanes at ambient temperature. Org Biomol Chem 2020; 18:7074-7078. [PMID: 32691811 DOI: 10.1039/d0ob01212b] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An iridium-catalyzed ortho-selective C-H arylation of cyclic N-sulfonyl ketimines has been achieved with environmentally benign aryl siloxanes. The reaction is highly efficient and proceeds at ambient temperature which is the key feature of the methodology considering the weak coordination nature of the substrate as well as the sluggish reactivity of siloxanes. A wide array of pharmaceutically relevant novel biaryls has been synthesized under operationally simple conditions.
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Affiliation(s)
- Writhabrata Sarkar
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Arup Bhowmik
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Sumit Das
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India. and Academy of Scientific and Innovative Research (AcSIR), India
| | - Aiswarya Balaram Sulekha
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Aniket Mishra
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
| | - Indubhusan Deb
- Organic & Medicinal Chemistry Division, CSIR-Indian Institute of Chemical Biology, 4-Raja S. C. Mullick Road, Jadavpur, Kolkata 700032, India.
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34
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Song AX, Zeng XX, Ma BB, Xu C, Liu FS. Direct (Hetero)arylation of Heteroarenes Catalyzed by Unsymmetrical Pd-PEPPSI-NHC Complexes under Mild Conditions. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00494] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- A-Xiang Song
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Xiao-Xiao Zeng
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Bei-Bei Ma
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Chang Xu
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
| | - Feng-Shou Liu
- School of Chemistry and Chemical Engineering, Guangdong Cosmetics Engineering & Technology Research Center, Guangdong Pharmaceutical University, Zhongshan, Guangdong 528458, People’s Republic of China
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35
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Liu R, Wei Y, Shi M. Rhodium(III)‐Catalyzed Cross Coupling of Sulfoxonium Ylides and 1,3‐Diynes to Produce Naphthol‐Indole Derivatives: An Arene
ortho
C−H Activation/Annulation Cascade. ChemCatChem 2020. [DOI: 10.1002/cctc.202001315] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ruixing Liu
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Linglin Lu Shanghai 200032 China
| | - Yin Wei
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Linglin Lu Shanghai 200032 China
| | - Min Shi
- State Key Laboratory of Organometallic Chemistry, Center for Excellence in Molecular Synthesis University of Chinese Academy of Sciences, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Linglin Lu Shanghai 200032 China
- Shenzhen Grubbs Institute Southern University of Science and Technology Shenzhen 518000 Guangdong China
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36
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Bhaskaran S, Padusha MSA, Sajith AM. Application of Palladium Based Precatalytic Systems in the Suzuki‐Miyaura Cross‐Coupling Reactions of Chloro‐ Heterocycles. ChemistrySelect 2020. [DOI: 10.1002/slct.202002357] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Savitha Bhaskaran
- Postgraduate and Research Department of ChemistryJamal Mohamed College, Bharathidasan University Tiruchirappalli India
| | - M. Syed Ali Padusha
- Postgraduate and Research Department of ChemistryJamal Mohamed College, Bharathidasan University Tiruchirappalli India
| | - Ayyiliath M Sajith
- Ortin laboratories Pvt. Ltd, Malkapur VillageChoutuppal Mandal, Hyderabad Telangana India- 508252
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37
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Che YY, Yue Y, Lin LZ, Pei B, Deng X, Feng C. Palladium-Catalyzed Electrophilic Functionalization of Pyridine Derivatives through Phosphonium Salts. Angew Chem Int Ed Engl 2020; 59:16414-16419. [PMID: 32533596 DOI: 10.1002/anie.202006724] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2020] [Revised: 05/30/2020] [Indexed: 12/11/2022]
Abstract
Herein, we report a highly efficient and practical method for pyridine-derived heterobiaryl synthesis through palladium-catalyzed electrophilic functionalization of easily available pyridine-derived quaternary phosphonium salts. The nice generality of this reaction was goes beyond arylation, enabling facile incorporation of diverse carbon-based fragments, including alkenyl, alkynyl, and also allyl fragments, onto the pyridine core. Notably, the silver salt additive is revealed to be of vital importance for the success of this transformation and its pivotal role as transmetallation mediator, which guarantees a smooth transfer of pyridyl group to palladium intermediate, is also described.
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Affiliation(s)
- Yuan-Yuan Che
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Yanni Yue
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Ling-Zhi Lin
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Bingbing Pei
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Xuezu Deng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF), Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, 30 South Puzhu Road, Nanjing, 211816, P. R. China
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38
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Che Y, Yue Y, Lin L, Pei B, Deng X, Feng C. Palladium‐Catalyzed Electrophilic Functionalization of Pyridine Derivatives through Phosphonium Salts. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Yuan‐Yuan Che
- Technical Institute of Fluorochemistry (TIF)Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Yanni Yue
- Technical Institute of Fluorochemistry (TIF)Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Ling‐Zhi Lin
- Technical Institute of Fluorochemistry (TIF)Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Bingbing Pei
- Technical Institute of Fluorochemistry (TIF)Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Xuezu Deng
- Technical Institute of Fluorochemistry (TIF)Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Chao Feng
- Technical Institute of Fluorochemistry (TIF)Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
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39
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Moseev TD, Varaksin MV, Lavrinchenko IA, Krinochkin AP, Kopchuk DS, Zyryanov GV, Slepukhin PA, Chupakhin ON, Charushin VN. Aryne-mediated transformations of 5-perfluorophenyl-substituted 3-(pyridin-2-yl)-1,2,4-triazines in the design of novel 10-(1H-1,2,3-triazol-1-yl)pyrido[1,2-a]indole fluorophores. Tetrahedron 2020. [DOI: 10.1016/j.tet.2020.131147] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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40
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Kumar S, Nair AM, Volla CMR. Ru(II)-Catalyzed C–H Functionalization of N-Hydroxyoximes with 1,3-Diynes Unveils a Regioselective Disparity. Org Lett 2020; 22:2141-2146. [DOI: 10.1021/acs.orglett.0c00120] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Shreemoyee Kumar
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Akshay M. Nair
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
| | - Chandra M. R. Volla
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India
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41
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Ethyl 2-(quinoxalin-2(1H)-on-3-yl)acetate and its mono- and dibromo derivatives in the synthesis of 2,2′-biquinoxalin-3,3′(4H,4’H)-diones. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2794-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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42
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Bhatt R, Bhuvanesh N, Sharma KN, Joshi H. Palladium Complexes of Thio/Seleno-Ether Containing N
-Heterocyclic Carbenes: Efficient and Reusable Catalyst for Regioselective C-H Bond Arylation. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901259] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ramprasad Bhatt
- Department of Chemistry; Birla Institute of Technology and Science; Pilani Campus 333031 Pilani India
| | - Nattamai Bhuvanesh
- Department of Chemistry; Texas A&M University; PO Box 30012 College Station 77842-3012 Texas USA
| | - Kamal Nayan Sharma
- Department of Chemistry; Malaviya National Institute of Technology Jaipur; J.L.N. Marg 302017 Jaipur Rajasthan India
- Department of Chemistry; ASAS, Amity University Haryana (AUH); Manesar; 122413 Gurgaon India
| | - Hemant Joshi
- Department of Chemistry; School of Chemical Sciences and Pharmacy; Central University of Rajasthan; NH-8, Bandarsindri 305817 Ajmer Rajasthan India
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43
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Shinde VN, Bhuvanesh N, Kumar A, Joshi H. Design and Syntheses of Palladium Complexes of NNN/CNN Pincer Ligands: Catalyst for Cross Dehydrogenative Coupling Reaction of Heteroarenes. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00695] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Vikki N. Shinde
- Department of Chemistry, BITS Pilani, Pilani Campus, Pilani 333031, India
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - Anil Kumar
- Department of Chemistry, BITS Pilani, Pilani Campus, Pilani 333031, India
| | - Hemant Joshi
- Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan 305817, India
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44
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Vivek Kumar S, Banerjee S, Punniyamurthy T. Transition metal-catalyzed coupling of heterocyclic alkenes via C–H functionalization: recent trends and applications. Org Chem Front 2020. [DOI: 10.1039/d0qo00279h] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Heterocyclic alkenes and their derivatives are an important class of reactive feedstock and valuable synthons. This review highlights the transition-metal-catalyzed coupling of heterocyclic alkenes via a C–H functionalization strategy.
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45
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Saied T, Demangeat C, Panossian A, Leroux FR, Fort Y, Comoy C. Transition‐Metal‐Free Heterobiaryl Synthesis via Aryne Coupling. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900130] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Tarak Saied
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
| | - Catherine Demangeat
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
| | - Armen Panossian
- Université de Haute‐Alsace Université de Strasbourg 67000 Strasbourg France
| | - Frédéric R. Leroux
- Université de Haute‐Alsace Université de Strasbourg 67000 Strasbourg France
| | - Yves Fort
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
| | - Corinne Comoy
- Université de Lorraine CNRS, L2CM UMR7053 B.P. 70239 54506 Vandoeuvre‐lès‐Nancy France
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46
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Zhang G, Fan Q, Zhao Y, Ding C. Copper-Promoted Oxidative Intramolecular C-H Amination of Hydrazones to Synthesize 1H
-Indazoles and 1H
-Pyrazoles Using a Cleavable Directing Group. European J Org Chem 2019. [DOI: 10.1002/ejoc.201900947] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Guofu Zhang
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Qiankun Fan
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Yiyong Zhao
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
| | - Chengrong Ding
- College of Chemical Engineering; Zhejiang University of Technology; 310014 Hangzhou P. R. China
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47
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Chen S, Zhang M, Su R, Chen X, Feng B, Yang Y, You J. C2/C4 Regioselective Heteroarylation of Indoles by Tuning C–H Metalation Modes. ACS Catal 2019. [DOI: 10.1021/acscatal.9b01273] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Shuyou Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Min Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Rongchuan Su
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Xingyu Chen
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Boya Feng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Yudong Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
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48
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Onoabedje EA, Okoro UC. Ligand-supported palladium-catalyzed cross-coupling reactions of (hetero) aryl chlorides. SYNTHETIC COMMUN 2019. [DOI: 10.1080/00397911.2019.1587778] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
| | - Uchechukwu Chris Okoro
- Department of Pure & Industrial Chemistry, University of Nigeria, Nsukka, Enugu State, Nigeria
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49
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Zhang M, Cheng R, Lan J, Zhang H, Yan L, Pu X, Huang Z, Wu D, You J. Oxidative C–H/C–H Cross-Coupling of [1,2,4]Triazolo[1,5-a]pyrimidines with Indoles and Pyrroles: Discovering Excited-State Intramolecular Proton Transfer (ESIPT) Fluorophores. Org Lett 2019; 21:4058-4062. [DOI: 10.1021/acs.orglett.9b01238] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Mangang Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Rui Cheng
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Jingbo Lan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Huaxing Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Lipeng Yan
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Xingwen Pu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Zhenmei Huang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Di Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
| | - Jingsong You
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, 29 Wangjiang Road, Chengdu 610064, P. R. China
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50
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