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Díaz-Vázquez ED, Cuellar MA, Heredia MD, Barolo SM, González-Bakker A, Padrón JM, Budén ME, Martín SE, Uberman PM. Palladium nanoparticles for the synthesis of phenanthridinones and benzo[ c]chromenes via C-H activation reaction. RSC Adv 2024; 14:18703-18715. [PMID: 38863826 PMCID: PMC11166021 DOI: 10.1039/d4ra02835j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Accepted: 05/31/2024] [Indexed: 06/13/2024] Open
Abstract
In the present work, derivatives of phenanthridine-6(5H)-ones and benzo[c]chromenes were efficiently prepared through an intramolecular C-H bond functionalization reaction catalyzed by photochemically synthesized Pd-PVP nanoparticles. The heterocycles were obtained via intramolecular arylation of the corresponding N-methyl-N-aryl-2-halobenzamide or aryl-(2-halo)benzyl ethers using K2CO3 as base in a mixture of H2O : DMA as solvent without additives or ligands. High yields of the heterocyclic compounds were achieved (up to 95%) using a moderately low catalyst loading (1-5 mol%) under an air atmosphere at 100 °C. The reaction exhibited very good tolerance to diverse functional groups (OMe, Me, t Bu, Ph, OCF3, CF3, F, Cl, -CN, Naph), and both bromine and iodine substrates showed great reactivity. Finally, the in vitro antiproliferative activity of phenanthridine-6(5H)-ones and benzo[c]chromenes was evaluated against six human solid tumor cell lines. The more active compounds exhibit activity in the low micromolar range. 1-Isopropyl-4-methyl-6H-benzo[c]chromene was identified as the best compound with promising values of activity (GI50 range 3.9-8.6 μM). Thus, the benzochromene core was highlighted as a novel organic building block to prepare potential antitumor agents.
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Affiliation(s)
- Eva D Díaz-Vázquez
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Micaela A Cuellar
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Micaela D Heredia
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Silvia M Barolo
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Aday González-Bakker
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Universidad de La Laguna C/Astrofísico Francisco Sánchez 2 E-38206 La Laguna Spain
| | - José M Padrón
- BioLab, Instituto Universitario de Bio-Orgánica "Antonio González" (IUBO-AG), Universidad de La Laguna C/Astrofísico Francisco Sánchez 2 E-38206 La Laguna Spain
| | - María E Budén
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Sandra E Martín
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
| | - Paula M Uberman
- Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
- Instituto de Investigaciones en Fisicoquímica de Córdoba-INFIQC-CONICET-Universidad Nacional de Córdoba Haya de La Torre y Medina Allende, Ciudad Universitaria X5000HUA Córdoba Argentina
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2
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Alves EHS, Oliveira DAS, Braga AAC. Palladium(II)-catalyzed annulation of N-methoxy amides and arynes: computational mechanistic insights and substituents effects. J Mol Model 2024; 30:152. [PMID: 38687370 DOI: 10.1007/s00894-024-05930-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Accepted: 04/07/2024] [Indexed: 05/02/2024]
Abstract
CONTEXT The combined use of transition metal-catalyzed C-H activation with aryne annulation reactions has emerged as an important strategy in organic synthesis. In this study, the mechanisms of the palladium(II)-catalyzed annulation reaction of N-methoxy amides and arynes were computationally investigated by density functional theory. The role of methoxy amide as a directing group was elucidated through the calculation of three different pathways for the C-H activation step, showing that the pathway where amide nitrogen acts as a directing group is preferable. At the reductive elimination transition state, an unstable seven-membered ring is formed preventing the lactam formation. A substituent effect study based on an NBO analysis, Hammet, and using a More O'Ferall-Jenks plot indicates that the C-H activation step proceeds via an electrophilic concerted metalation-deprotonation (eCMD) mechanism. The results show that electron-withdrawing groups increase the activation barrier and contribute to an early Pd-C bond formation and a late C-H bond breaking when compared with electron-donating substituents. Our computational results are in agreement with the experimental data provided in the literature. METHODS All calculations were performed using Gaussian 16 software. Geometry optimizations, frequency analyses at 393.15 K, and IRC calculations were conducted at the M06L/Def2-SVP level of theory. Corrected electronic energies, NBO charges, and Wiberg bond indexes were computed at the M06L/Def2-TZVP//M06L/Def2-SVP level of theory. Implicit solvent effects were considered in all calculations using the SMD model, with acetonitrile employed as the solvent.
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Affiliation(s)
- Erick H S Alves
- Departament of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, São Paulo, Brazil
| | - Daniel A S Oliveira
- Departament of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, São Paulo, Brazil
| | - Ataualpa A C Braga
- Departament of Fundamental Chemistry, Institute of Chemistry, University of São Paulo, Av. Prof. Lineu Prestes, 748, São Paulo, 05508-000, São Paulo, Brazil.
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3
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Luo X, Shen J, Jiang H, Huang L. Ruthenium-Catalyzed C-H Arylation of Aromatic Acids with ortho-Haloaniline To Access Phenanthridinones. Org Lett 2024; 26:2883-2887. [PMID: 38385698 DOI: 10.1021/acs.orglett.3c04377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2024]
Abstract
Phenanthridinone is a significant moiety in pharmaceutical and material science; thus, it is highly desirable to develop an efficient and robust method to construct phenanthridinone from readily available starting materials. Herein, we report a Ru-catalyzed C-H arylation of aromatic carboxylic acids with ortho-haloanilines, followed by intramolecular dehydration to afford phenanthridinones in high yields.
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Affiliation(s)
- Xianglin Luo
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Jiayi Shen
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Huanfeng Jiang
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
| | - Liangbin Huang
- State Key Laboratory of Pulp and Paper Engineering, Key Laboratory of Functional Molecular Engineering of Guangdong Province, School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, P. R. China
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4
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Sun W, Uttendorfer M, Idiris FIM, Werling AYR, Siddiq K, Jones CR. Selective access to dihydrophenanthridines and phenanthridinones via cyclisation of aryl amines onto N-tethered arynes. Chem Commun (Camb) 2023; 59:11823-11826. [PMID: 37712932 DOI: 10.1039/d3cc03027j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
5,6-Dihydrophenanthridines are prepared from aryl amines via intramolecular addition to N-tethered arynes under mild conditions. A new o-silylaryl triflate precursor was developed to increase reactivity and enable electron-rich and electron-poor aryl amines to undergo cyclisation. A complete switch in product selectivity occurs when the reaction is conducted in air, affording the corresponding phenanthridin-6(5H)-one as the sole product under otherwise identical reaction conditions.
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Affiliation(s)
- Weitao Sun
- Department of Chemistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - Maria Uttendorfer
- Department of Chemistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - Fahima I M Idiris
- Department of Chemistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - A Yannic R Werling
- Department of Chemistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - Khushal Siddiq
- Department of Chemistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
| | - Christopher R Jones
- Department of Chemistry, Queen Mary University of London, Mile End Road, London, E1 4NS, UK.
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5
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Geng X, He H, Shatskiy A, Stepanova EV, Alvey GR, Liu JQ, Kärkäs MD, Wang XS. Construction of Phenanthridinone Skeletons through Palladium-Catalyzed Annulation. J Org Chem 2023; 88:12738-12743. [PMID: 37611263 PMCID: PMC10476191 DOI: 10.1021/acs.joc.3c01429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Indexed: 08/25/2023]
Abstract
Herein, a straightforward synthetic approach for the construction of phenanthridin-6(5H)-one skeletons is disclosed. The developed protocol relies on palladium catalysis, providing controlled access to a range of functionalized phenanthridin-6(5H)-ones in 59-88% yields. Furthermore, plausible reaction pathways are proposed based on mechanistic experiments.
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Affiliation(s)
- Xin Geng
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Heng He
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
| | - Andrey Shatskiy
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Elena V. Stepanova
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
- Tomsk
Polytechnic University, Lenin Avenue 30, 634050 Tomsk, Russia
| | - Gregory R. Alvey
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Jian-Quan Liu
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Markus D. Kärkäs
- Department
of Chemistry, KTH Royal Institute of Technology, SE-100 44 Stockholm, Sweden
| | - Xiang-Shan Wang
- School
of Chemistry and Materials Science, Jiangsu
Key Laboratory of Green Synthesis for Functional Materials Jiangsu
Normal University, Xuzhou, Jiangsu 221116, China
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6
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Fairlamb IJS, Lang J, Růžička A, Sedlák M, Váňa J. Direct Cyclopalladation of Fluorinated Benzyl Amines by Pd 3(OAc) 6: The Coexistence of Multinuclear Pd n Reaction Pathways Highlights the Importance of Pd Speciation in C-H Bond Activation. Organometallics 2023; 42:2197-2205. [PMID: 37654651 PMCID: PMC10466454 DOI: 10.1021/acs.organomet.3c00178] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Indexed: 09/02/2023]
Abstract
Palladacycles are key intermediates in catalytic C-H bond functionalization reactions and important precatalysts for cross-couplings. It is commonly believed that palladacycle formation occurs through the reaction of a substrate bearing a C-H bond ortho to a suitable metal-directing group for interaction with, typically, mononuclear "Pd(OAc)2" species, with cyclopalladation liberating acetic acid as the side product. In this study, we show that N,N-dimethyl-fluoro-benzyl amines, which can be cyclopalladated either ortho or para to fluorine affording two regioisomeric products, can occur by a direct reaction of Pd3(OAc)6, proceeding via higher-order cyclopalladated intermediates. Regioselectivity is altered subtly depending on the ratio of substrate:Pd3(OAc)6 and the solvent used. Our findings are important when considering mechanisms of Pd-mediated reactions involving the intermediacy of palladacycles, of particular relevance in catalytic C-H bond functionalization chemistry.
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Affiliation(s)
- Ian J. S. Fairlamb
- Department
of Chemistry, University of York, Heslington, York YO10 5DD, United Kingdom
| | - Jan Lang
- Department
of Low Temperature Physics, Faculty of Mathematics and Physics, Charles University, V Holešovičkách 747/2, 18000 Prague 8, Czech Republic
| | - Aleš Růžička
- Department
of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Miloš Sedlák
- Faculty
of Chemical Technology, Institute of Organic
Chemistry and Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
| | - Jiří Váňa
- Faculty
of Chemical Technology, Institute of Organic
Chemistry and Technology, University of Pardubice, Studentská 573, 53210 Pardubice, Czech Republic
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7
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Bauri S, Ramachandran A, Rit A. Base-catalyzed Effective C2-Amidation of Azolium Salts Using Isocyanates under Mild Conditions. Chem Asian J 2023; 18:e202201301. [PMID: 36846935 DOI: 10.1002/asia.202201301] [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: 12/30/2022] [Revised: 01/31/2023] [Indexed: 03/01/2023]
Abstract
An unprecedented base-catalyzed hydroarylation of isocyanates with azolium salts was developed, which follows a simple reaction pathway and provided facile access to diverse C2-amidated azolium salts under mild conditions. Importantly, this methodology can also be applied for the successive C2-amidation of a bisimidazolium salt with two different isocyanates to provide the corresponding unsymmetrically substituted bisamide derivatives. Notably, the obtained amidated salts can also serve as a prominent carbene surrogate for the synthesis of metal-NHC complexes.
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Affiliation(s)
- Somnath Bauri
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Arya Ramachandran
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Arnab Rit
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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8
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Muzart J. Cross-dehydrogenative annelation of arynes with C(sp2)–H/N–H or C(sp2)–H/O–H frameworks under Pd or Cu catalysis. Tetrahedron 2022. [DOI: 10.1016/j.tet.2022.133063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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9
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Sarmah M, Hazarika H, Gogoi P. Aryne Annulations for the Synthesis of Carbocycles and Heterocycles: An Updated Review. SYNTHESIS-STUTTGART 2022. [DOI: 10.1055/a-1863-8622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Carbocycles and heterocycles are the most relevant structural moieties, which find boundless applications in interdisciplinary areas. In this regard, the interesting chemistry of aryne is highly embraced by the researchers for the synthesis of structurally different polycyclic systems i.e. carbocycles and heterocycles. In this review, we intended to provide a comprehensive overview on annulative approach considering Kobayashi's aryne intermediate as the key reactive species with diverse nucleo-/electrophilic partners. The review highlights the different aryne annulation reactions adopted for the synthesis of carbocycles and heterocycles (covering articles mainly from middle of 20’s), showcasing their viability towards broad range of substrates bearing diverse functionalities.
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Affiliation(s)
| | | | - Pranjal Gogoi
- Medicinal Chemistry, CSIR-NEIST Jorhat, Jorhat, India
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10
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Cheng XF, Yu T, Liu Y, Wang N, Chen Z, Zhang GL, Tong L, Tang B. Palladium(II)-Catalyzed C(sp 2)–H Bond Activation/C–N Bond Cleavage Annulation of N-Methoxy Amides and Arynes. Org Lett 2022; 24:2087-2092. [DOI: 10.1021/acs.orglett.2c00161] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiu-Fen Cheng
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Ting Yu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Yi Liu
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Nan Wang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Zhenzhen Chen
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Guang-Lu Zhang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Lili Tong
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
| | - Bo Tang
- College of Chemistry, Chemical Engineering and Materials Science, Collaborative Innovation Center of Functionalized Probes for Chemical Imaging in Universities of Shandong, Key Laboratory of Molecular and Nano Probes, Ministry of Education, Shandong Provincial Key Laboratory of Clean Production of Fine Chemicals, Shandong Normal University, Jinan 250014, P. R. China
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11
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Qiu M, Fu X, Fu P, Huang J. Construction of aziridine, azetidine, indole and quinoline-like heterocycles via Pd-mediated C-H activation/annulation strategies. Org Biomol Chem 2022; 20:1339-1359. [PMID: 35044404 DOI: 10.1039/d1ob02146j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
N-Heterocycles can be found in natural products and drug molecules and are indispensable components in the area of organic synthesis, medicinal chemistry and materials science. The construction of these N-containing heterocycles by traditional methods usually requires the preparation of reactive intermediates. In the past decades, with the rapid growth of transition metal catalysed coupling reactions, syntheses of heterocycles from precursors with inert chemical bonds have become a challenge. More recently, in the field of transition metal associated C-H direct functionalization, efficient methods have been developed for the syntheses of N-heterocyclic compounds such as aziridines, azetidines, indoles and quinolines under the click type of reaction mode. In this review, representative synthetic methodologies developed in the recent 10 years for the preparation of this small class of N-heterocycles via the Pd-catalysed C-H activation and C-N bond formation pathway are discussed. We hope this article will provide new insights from the strategies highlighted into future molecular design, synthesis and applications in medical and materials sciences.
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Affiliation(s)
- Mengyu Qiu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Xuegang Fu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Peng Fu
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Jianhui Huang
- School of Pharmaceutical Science and Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, China. .,Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, China.,Tianjin University and Health-Biotech United Group Joint Laboratory of Innovative Drug Development and Translational Medicine, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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12
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Pan C, Wang L, Han J. Palladium‐Catalyzed Annulation of Arylbenzamides with Diaryliodonium Salts. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100860] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Cheng Pan
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Limin Wang
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
| | - Jianwei Han
- Key Laboratory for Advanced Materials and Feringa Nobel Prize Scientist Joint Research Center, Institute of Fine Chemicals, School of Chemistry & Molecular Engineering East China University of Science and Technology 130 Meilong Road Shanghai 200237 People's Republic of China
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13
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Bera SK, Mal P. Mechanochemical-Cascaded C-N Cross-Coupling and Halogenation Using N-Bromo- and N-Chlorosuccinimide as Bifunctional Reagents. J Org Chem 2021; 86:14144-14159. [PMID: 34423985 DOI: 10.1021/acs.joc.1c01742] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Exploration of alternative energy sources for chemical transformations has gained significant interest from chemists, and mechanochemistry is one of those sources. Herein, we report the use of N-bromosuccinimides (NBS) and N-chlorosuccinimides (NCS) as bifunctional reagents for a cascaded C-N bond formation and subsequent halogenation reactions. Under the solvent-free mechanochemical (ball-milling) conditions, the synthesis of a wide range of phenanthridinone derivatives from N-methoxy-[1,1'-biphenyl]-2-carboxamides is accomplished. During the reactions, NBS and NCS first assisted the oxidative C-N coupling reaction and subsequently promoted a halogenation reaction. Thus, the role of NBS and NCS was established to be bifunctional. Overall, a mild, solvent-free, convenient, one-pot, and direct synthesis of various bromo- and chloro-substituted phenanthridinone derivatives was achieved.
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Affiliation(s)
- Shyamal Kanti Bera
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
| | - Prasenjit Mal
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, PO Bhimpur-Padanpur, Via Jatni, District Khurda, Odisha 752050, India
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14
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Aleti RR, Festa AA, Voskressensky LG, Van der Eycken EV. Synthetic Strategies in the Preparation of Phenanthridinones. Molecules 2021; 26:5560. [PMID: 34577030 PMCID: PMC8466741 DOI: 10.3390/molecules26185560] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 09/07/2021] [Accepted: 09/08/2021] [Indexed: 11/16/2022] Open
Abstract
Phenanthridinones are important heterocyclic frameworks present in a variety of complex natural products, pharmaceuticals and displaying wide range of pharmacological actions. Its structural importance has evoked a great deal of interest in the domains of organic synthesis and medicinal chemistry to develop new synthetic methodologies, as well as novel compounds of pharmaceutical interest. This review focuses on the synthesis of phenanthridinone scaffolds by employing aryl-aryl, N-aryl, and biaryl coupling reactions, decarboxylative amidations, and photocatalyzed reactions.
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Affiliation(s)
- Rajeshwar Reddy Aleti
- Organic Chemistry Department, Science Faculty, RUDN University, Miklukho-Maklaya St., 6, 117198 Moscow, Russia; (R.R.A.); (A.A.F.); (L.G.V.)
| | - Alexey A. Festa
- Organic Chemistry Department, Science Faculty, RUDN University, Miklukho-Maklaya St., 6, 117198 Moscow, Russia; (R.R.A.); (A.A.F.); (L.G.V.)
| | - Leonid G. Voskressensky
- Organic Chemistry Department, Science Faculty, RUDN University, Miklukho-Maklaya St., 6, 117198 Moscow, Russia; (R.R.A.); (A.A.F.); (L.G.V.)
| | - Erik V. Van der Eycken
- Organic Chemistry Department, Science Faculty, RUDN University, Miklukho-Maklaya St., 6, 117198 Moscow, Russia; (R.R.A.); (A.A.F.); (L.G.V.)
- Laboratory for Organic & Microwave-Assisted Chemistry (LOMAC), Department of Chemistry, University of Leuven (KU Leuven), Celestijnenlaan 200F, B-3001 Leuven, Belgium
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15
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Desai B, Patel M, Dholakiya BZ, Rana S, Naveen T. Recent advances in directed sp 2 C-H functionalization towards the synthesis of N-heterocycles and O-heterocycles. Chem Commun (Camb) 2021; 57:8699-8725. [PMID: 34397068 DOI: 10.1039/d1cc02176a] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocyclic compounds are widely present in the core structures of several natural products, pharmaceuticals and agrochemicals, and thus great efforts have been devoted to their synthesis in a mild and simpler way. In the past decade, remarkable progress has been made in the field of heterocycle synthesis by employing C-H functionalization as an emerging synthetic strategy. As a complement to previous protocols, transition metal catalyzed C-H functionalization of arenes using various directing groups has recently emerged as a powerful tool to create different classes of heterocycles. This review is mainly focussed on the recent key progress made in the field of the synthesis of N,O-heterocycles from olefins and allenes by using nitrogen based and oxidizing directing groups.
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Affiliation(s)
- Bhargav Desai
- Department of Chemistry, Sardar Vallabhbhai National Institute of Technology, Surat, Gujarat-395 007, India.
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16
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Sunnam SK, Belani JD. Aryne Multicomponent Reactions by Directed C-H Activation. Chemistry 2021; 27:8846-8850. [PMID: 33848022 DOI: 10.1002/chem.202100205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Indexed: 12/30/2022]
Abstract
Arylation via ortho C-H activation by the aid of directing groups has been explored recently by many researchers. Herein, a palladium-catalyzed C-H arylation using 8-aminoquinoline as a bidentate directing group has been developed. The reaction furnishes only C-H arylation, unlike previous methods where cyclization to corresponding isoquinolones is observed. More interestingly, sequential C-H functionalization was observed when methylacrylate and acrylonitrile was added; this led to C-H olefination with the aryl group, which was installed from the aryne precursor.
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Affiliation(s)
- Sunil Kumar Sunnam
- College of Pharmacy, Thomas Jefferson University, 1020 Locust street, Philadelphia, PA 19107, USA.,Present address: Dr. Reddy's Laboratories, IPDO, Sy No 42 45 46 & 54, Bachupally, Hyderabad, Telangana, 500090, India
| | - Jitendra D Belani
- College of Pharmacy, Thomas Jefferson University, 1020 Locust street, Philadelphia, PA 19107, USA
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17
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Vorobyeva DV, Petropavlovskikh DA, Godovikov IA, Nefedov SE, Osipov SN. Rh(III)‐Catalyzed C−H Activation/Annulation of Aryl Hydroxamates with CF
3
‐Containing
α
‐Propargyl
α
‐Amino Acid Derivatives. European J Org Chem 2021. [DOI: 10.1002/ejoc.202100040] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Daria V. Vorobyeva
- Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
| | - Dmitry A. Petropavlovskikh
- Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
| | - Ivan A. Godovikov
- Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
| | - Sergey E. Nefedov
- Institute of General and Inorganic Chemistry Russian Academy of Sciences Leninsky pr. 31 119991 Moscow Russian Federation
| | - Sergey N. Osipov
- Institute of Organoelement compounds Russian Academy of Sciences Vavilov str. 28 119991 Moscow Russian Federation
- Peoples' Friendship University of Russia (RUDN University) Miklukho-Maklaya Str. 6 117198 Moscow Russian Federation
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18
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Affiliation(s)
- Jiarong Shi
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Lianggui Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
| | - Yang Li
- School of Chemistry and Chemical Engineering, Chongqing University, 174 Shazheng Street, Chongqing, P. R. China, 400030
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19
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Rocchi D, Blázquez-Barbadillo C, Agamennone M, Laghezza A, Tortorella P, Vicente-Zurdo D, Rosales-Conrado N, Moyano P, Pino JD, González JF, Menéndez JC. Discovery of 7-aminophenanthridin-6-one as a new scaffold for matrix metalloproteinase inhibitors with multitarget neuroprotective activity. Eur J Med Chem 2020; 210:113061. [PMID: 33310289 DOI: 10.1016/j.ejmech.2020.113061] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 11/19/2020] [Accepted: 11/24/2020] [Indexed: 11/15/2022]
Abstract
Matrix metalloproteinases (MMPs) are zinc-dependent hydrolytic enzymes of great biological relevance, and some of them are key to the neuroinflammatory events and the brain damage associated to stroke. Non-zinc binding ligands are an emerging trend in drug discovery programs in this area due to their lower tendency to show off-target effects. 7-Amino-phenanthridin-6-one is disclosed as a new framework able to inhibit matrix metalloproteinases by binding to the distal part of the enzyme S1' site, as shown by computational studies. A kinetic study revealed inhibition to be noncompetitive. Some of the compounds showed some degree of selectivity for the MMP-2 and MMP-9 enzymes, which are crucial for brain damage associated to ischemic stroke. Furthermore, some compounds also had a high neuroprotective activity against oxidative stress, which is also very relevant aspect of ischaemic stroke pathogenesis, both decreasing lipid peroxidation and protecting against the oxidative stress-induced reduction in cell viability. One of the compounds, bearing a 2-thienyl substituent at C-9 and a 4-methoxyphenylamino at C-7, had the best-balanced multitarget profile and was selected as a lead on which to base future structural manipulation.
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Affiliation(s)
- Damiano Rocchi
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040, Madrid, Spain
| | - Cristina Blázquez-Barbadillo
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040, Madrid, Spain
| | - Mariangela Agamennone
- Dipartamento di Farmacia, Università degli Studi G. d'Annunzio di Chieti-Pescara, 66100, Chieti, Italy
| | - Antonio Laghezza
- Dipartimento di Farmacia - Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, Italy
| | - Paolo Tortorella
- Dipartimento di Farmacia - Scienze del Farmaco, Università degli Studi di Bari Aldo Moro, Italy
| | - David Vicente-Zurdo
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain
| | - Noelia Rosales-Conrado
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense, 28040, Madrid, Spain
| | - Paula Moyano
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense, 28040, Madrid, Spain
| | - Javier Del Pino
- Departamento de Farmacología y Toxicología, Facultad de Veterinaria, Universidad Complutense, 28040, Madrid, Spain
| | - Juan F González
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040, Madrid, Spain
| | - J Carlos Menéndez
- Unidad de Química Orgánica y Farmacéutica, Departamento de Química en Ciencias Farmacéuticas, Facultad de Farmacia, Universidad Complutense, 28040, Madrid, Spain.
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20
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Sen A, Dhital RN, Sato T, Ohno A, Yamada YMA. Switching from Biaryl Formation to Amidation with Convoluted Polymeric Nickel Catalysis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03888] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Abhijit Sen
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Raghu N. Dhital
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Takuma Sato
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Aya Ohno
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
| | - Yoichi M. A. Yamada
- RIKEN Center for Sustainable Resource Science, Wako, Saitama 351-0198, Japan
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21
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Li S, Liu L, Wang R, Yang Y, Li J, Wei J. Palladium-Catalyzed Oxidative Annulation of Sulfoximines and Arynes by C–H Functionalization as an Approach to Dibenzothiazines. Org Lett 2020; 22:7470-7474. [DOI: 10.1021/acs.orglett.0c02615] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Shan Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Liansheng Liu
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Rong Wang
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Yihui Yang
- Department of Applied Chemistry, Xi’an University of Technology, Xi’an 710048, China
| | - Jing Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
| | - Junfa Wei
- School of Chemistry and Chemical Engineering, Shaanxi Normal University, Xi’an 710119, China
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22
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Wan T, Pi C, Wu Y, Cui X. Rh(III)-Catalyzed [4 + 2] Annulation of 3-Aryl-5-isoxazolone with Maleimides or Maleic Ester. Org Lett 2020; 22:6484-6488. [DOI: 10.1021/acs.orglett.0c02283] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Ting Wan
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Chao Pi
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Xiuling Cui
- Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450052, P. R. China
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23
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Sun M, Chen W, Xia X, Shen G, Ma Y, Yang J, Ding H, Wang Z. Palladium-Catalyzed Tandem Dehydrogenative [4 + 2] Annulation of Terminal Olefins with N-Sulfonyl Amides via C–H Activations. Org Lett 2020; 22:3229-3233. [DOI: 10.1021/acs.orglett.0c01011] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Manman Sun
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Weida Chen
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Xiangyu Xia
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Guodong Shen
- School of Chemistry and Chemical Engineering, School of Pharmacy, Liaocheng University, Liaocheng 252000, P. R. China
| | - Yongmin Ma
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Jianguo Yang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
| | - Hanfeng Ding
- Department of Chemistry, Zhejiang University, Hangzhou 310058, P. R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P. R. China
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24
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Sun M, Wu H, Xia X, Chen W, Wang Z, Yang J. Asymmetric Palladium-Catalyzed C–H Functionalization Cascade for Synthesis of Chiral 3,4-Dihydroisoquinolones. J Org Chem 2019; 84:12835-12847. [DOI: 10.1021/acs.joc.9b01372] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manman Sun
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Haijian Wu
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Xiangyu Xia
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Weida Chen
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Zhiming Wang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
| | - Jianguo Yang
- Advanced Research Institute and Department of Chemistry, Taizhou University, 1139 Shifu Avenue, Taizhou 318000, P.R. China
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25
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Zhao J, Li H, Li P, Wang L. Annulation of Benzamides with Arynes Using Palladium with Photoredox Dual Catalysis. J Org Chem 2019; 84:9007-9016. [DOI: 10.1021/acs.joc.9b00893] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jie Zhao
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Hongji Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Pinhua Li
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
| | - Lei Wang
- Department of Chemistry, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, P. R. China
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26
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Palladium catalyzed annulation of benzylamines and arynes via C–H activation to construct 5,6-dihydrophenanthridine derivatives. Tetrahedron 2019. [DOI: 10.1016/j.tet.2019.05.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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27
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Padmavathi R, Babu SA. Palladium‐Catalyzed 8‐Aminoquinoline‐Aided sp
2
δ
‐C−H Intramolecular Amidation/Annulation: A Route to Tricyclic Quinolones. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900109] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rayavarapu Padmavathi
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
| | - Srinivasarao Arulananda Babu
- Department of Chemical SciencesIndian Institute of Science Education and Research (IISER) Mohali Knowledge City, Sector 81, SAS Nagar, Mohali, Manauli P.O. Punjab 140306 India
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28
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Ramesh B, Tamizmani M, Jeganmohan M. Rhodium(III)-Catalyzed Redox-Neutral 1,1-Cyclization of N-Methoxy Benzamides with Maleimides via C–H/N–H/N–O Activation: Detailed Mechanistic Investigation. J Org Chem 2019; 84:4058-4071. [DOI: 10.1021/acs.joc.9b00051] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Affiliation(s)
- Balu Ramesh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Masilamani Tamizmani
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu, India
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29
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Hou H, Zhao Y, Pu S, Chen J. Rhodium-catalyzed direct C–H bond alkynylation of aryl sulfonamides with bromoalkynes. Org Biomol Chem 2019; 17:2948-2953. [DOI: 10.1039/c9ob00061e] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This protocol selectively provides a straightforward route to prepare ortho-(1-alkynyl) benzenesulfonamides or six-membered benzosultams by using different silyl protected bromoalkynes.
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Affiliation(s)
- Hongcen Hou
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Yongli Zhao
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
| | - Shouzhi Pu
- Jiangxi Key Laboratory of Organic Chemistry
- Jiangxi Science & Technology Normal University
- Nanchang
- P. R. China
| | - Junmin Chen
- Key Laboratory of Functional Small Organic Molecules
- Ministry of Education and College of Chemistry & Chemical Engineering
- Jiangxi Normal University
- Nanchang
- China
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30
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Meng YY, Si XJ, Song YY, Zhou HM, Xu F. Palladium-catalyzed decarbonylative annulation of phthalimides with arynes: direct construction of phenanthridinones. Chem Commun (Camb) 2019; 55:9507-9510. [DOI: 10.1039/c9cc04868e] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel palladium-catalyzed decarbonylative annulation between phthalimides and arynes was well-established, affording phenanthridinone derivatives in moderate to good yields.
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Affiliation(s)
- Yan-Yu Meng
- Department of College of Science
- Henan Agricultural University
- Zhengzhou 450002
- P. R. China
| | - Xiao-Ju Si
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Yuan-Yuan Song
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Hui-Min Zhou
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
| | - Fen Xu
- Department of Material and Chemical Engineering
- Zhengzhou University of Light Industry
- Zhengzhou 450002
- P. R. China
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31
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Feng S, Li S, Li J, Wei J. Palladium-catalyzed annulation of N-alkoxy benzsulfonamides with arynes by C–H functionalization: access to dibenzosultams. Org Chem Front 2019. [DOI: 10.1039/c8qo01311j] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Palladium-catalyzed C–H/N–H functionalization of N-alkoxy benzsulfonamides with arynes provides dibenzosultams via C–C/C–N bond formation, accompanied by an unexpected N–O bond cleavage.
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Affiliation(s)
- Simin Feng
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Shan Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Jing Li
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
| | - Junfa Wei
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi'an 710119
- P. R. China
- Key Laboratory for Macromolecular Science of Shaanxi Province
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32
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Manikandan TS, Ramesh R, Semeril D. The Tandem C–H/N–H Activation of N-Methyl Arylamide Catalyzed by Dinuclear Pd(II) Benzhydrazone Complex: A Concise Access to Phenanthridinone. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00714] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
| | - Rengan Ramesh
- Centre for Organometallic Chemistry, School of Chemistry, Bharathidasan University, Tiruchirappalli − 620 024, India
| | - David Semeril
- Universite de Strasbourg, Laboratoire de Chimie Inorganique Moleculaire et Catalyse, UMR 7177
CNRS, 4 rue Blaise Pascal, 67008 Strasbourg, France
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33
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Saha R, Sekar G. Stable Pd-nanoparticles catalyzed domino C H activation/C N bond formation strategy: An access to phenanthridinones. J Catal 2018. [DOI: 10.1016/j.jcat.2018.08.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Affiliation(s)
- Goutam Brahmachari
- Laboratory of Natural Products & Organic Synthesis, Department of Chemistry; Visva-Bharati (a Central University); Santiniketan-731 235 West Bengal India
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35
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Mandal S, Bera T, Dubey G, Saha J, Laha JK. Uses of K2S2O8 in Metal-Catalyzed and Metal-Free Oxidative Transformations. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00743] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sudip Mandal
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Tishyasoumya Bera
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Gurudutt Dubey
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
| | - Jaideep Saha
- Centre of Biomedical Research, Division of Molecular Synthesis and Drug Discovery, SGPGIMS Campus, Raebareli Road, Lucknow 226014, India
| | - Joydev K. Laha
- Department of Pharmaceutical Technology (Process Chemistry), National Institute of Pharmaceutical Education and Research, S. A. S. Nagar, Punjab 160062, India
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36
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Mandal A, Selvakumar J, Dana S, Mukherjee U, Baidya M. A Cross-Dehydrogenative Annulation Strategy towards Synthesis of Polyfluorinated Phenanthridinones with Copper. Chemistry 2018; 24:3448-3454. [PMID: 29381235 DOI: 10.1002/chem.201800337] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2018] [Indexed: 11/07/2022]
Abstract
The first cross-dehydrogenative annulation of (hetero)aromatic amides with polyfluoro(hetero)arenes is presented. This operationally simple oxidative annulation process is mediated by inexpensive copper salt, accommodates a wide range of substrates with exquisite chemo- and regioselectivity profile, and produces demanding polyfluorinated phenanthridinones in high yields (up to 92 %). Using alkenyl amides under identical conditions, the synthesis of polyfluorinated 2-quinolones has also been accomplished. Given the importance of fluorinated heterocycles in the pharmaceutical industry and drug discovery, this work is highly significant.
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Affiliation(s)
- Anup Mandal
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Jayaraman Selvakumar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Suman Dana
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Upasana Mukherjee
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Mahiuddin Baidya
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
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37
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Zhou T, Li L, Li B, Song H, Wang B. Syntheses, Structures, and Reactions of Cyclometalated Rhodium, Iridium, and Ruthenium Complexes of N-Methoxy-4-nitrobenzamide. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00879] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | - Baiquan Wang
- State
Key Laboratory of Organometallic Chemistry, Shanghai Institute of
Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, PR China
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38
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Takikawa H, Nishii A, Sakai T, Suzuki K. Aryne-based strategy in the total synthesis of naturally occurring polycyclic compounds. Chem Soc Rev 2018; 47:8030-8056. [DOI: 10.1039/c8cs00350e] [Citation(s) in RCA: 164] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
This review has outlined the strategies and tactics of using arynes in the total syntheses of polycyclic natural products.
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Affiliation(s)
- Hiroshi Takikawa
- Graduate School of Pharmaceutical Sciences
- Kyoto University
- Kyoto 606-8501
- Japan
| | - Arata Nishii
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551
- Japan
| | - Takahiro Sakai
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551
- Japan
| | - Keisuke Suzuki
- Department of Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8551
- Japan
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39
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Thorat VH, Upadhyay NS, Murakami M, Cheng CH. Nickel-Catalyzed Denitrogenative Annulation of 1,2,3-Benzotriazin-4-(3H
)-ones with Benzynes for Construction of Phenanthridinone Scaffolds. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701143] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | | | - Masahiro Murakami
- Department of Synthetic Chemistry and Biological Chemistry Kyoto University; Katsura Kyoto 615-8510 Japan
| | - Chien-Hong Cheng
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
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40
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Yedage SL, Bhanage BM. tert-Butyl Nitrite-Mediated Synthesis of N-Nitrosoamides, Carboxylic Acids, Benzocoumarins, and Isocoumarins from Amides. J Org Chem 2017; 82:5769-5781. [PMID: 28472882 DOI: 10.1021/acs.joc.7b00570] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This work reports tert-butyl nitrite (TBN) as a multitask reagent for (1) the controlled synthesis of N-nitrosoamide from N-alkyl amides, (2) hydrolysis of N-methoxyamides to carboxylic acids, (3) metal- and oxidant-free benzocoumarin synthesis from ortho-aryl-N-methoxyamides via N-H, C-N, and C-H bond activation, and (4) isocoumarin synthesis using Ru(II)/PEG as a recyclable catalytic system via ortho-C-H activation and TBN as an oxygen source. The sequential functional group interconversion of amide to acid has also been examined using IR spectroscopic analysis. Additionally, this methodology is highly advantageous due to short reaction time, gram scale synthesis, and broad substrate scope.
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Affiliation(s)
- Subhash L Yedage
- Department of Chemistry, Institute of Chemical Technology , Mumbai 400019, India
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41
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Zhang TY, Lin JB, Li QZ, Kang JC, Pan JL, Hou SH, Chen C, Zhang SY. Copper-Catalyzed Selective ortho-C–H/N–H Annulation of Benzamides with Arynes: Synthesis of Phenanthridinone Alkaloids. Org Lett 2017; 19:1764-1767. [PMID: 28291370 DOI: 10.1021/acs.orglett.7b00442] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ting-Yu Zhang
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jun-Bing Lin
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Quan-Zhe Li
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jun-Chen Kang
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Jin-Long Pan
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Si-Hua Hou
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Chao Chen
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Shu-Yu Zhang
- School of Chemistry and Chemical Engineering, ‡Sixth People’s Hospital South
Campus, and §Zhiyuan College, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
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42
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Liang D, Yu W, Nguyen N, Deschamps JR, Imler GH, Li Y, MacKerell AD, Jiang C, Xue F. Iodobenzene-Catalyzed Synthesis of Phenanthridinones via Oxidative C–H Amidation. J Org Chem 2017; 82:3589-3596. [DOI: 10.1021/acs.joc.7b00106] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Dongdong Liang
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Wenbo Yu
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Nam Nguyen
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Jeffrey R. Deschamps
- Naval Research Laboratory, Code 6930, 4555 Overlook Avenue, Washington,
D.C. 20375, United States
| | - Gregory H. Imler
- Naval Research Laboratory, Code 6930, 4555 Overlook Avenue, Washington,
D.C. 20375, United States
| | - Yue Li
- Department
of Chemistry and Biochemistry, University of Maryland College Park, College
Park, Maryland 20740, United States
| | - Alexander D. MacKerell
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
| | - Chao Jiang
- Department
of Pharmaceutical Engineering, School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China
| | - Fengtian Xue
- Department
of Pharmaceutical Sciences, University of Maryland School of Pharmacy, 20 Penn Street, Baltimore, Maryland 21201, United States
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43
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Ortiz Villamizar MC, Zubkov FI, Puerto Galvis CE, Vargas Méndez LY, Kouznetsov VV. The study of metal-free and palladium-catalysed synthesis of benzochromenes via direct C–H arylation using unactivated aryl benzyl ethers derived from essential oils as raw materials. Org Chem Front 2017. [DOI: 10.1039/c7qo00232g] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis of 6H-benzo[c]chromenes, from phenol-rich essential oils, was studied through two approaches, establishing the Pd-approach as the most efficient protocol over the metal-free process.
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Affiliation(s)
- Marlyn C. Ortiz Villamizar
- Laboratorio de Química Orgánica y Biomolecular
- CMN
- Universidad Industrial de Santander
- Parque Tecnológico Guatiguará
- Piedecuesta 681011
| | - Fedor I. Zubkov
- Department of Organic Chemistry
- Peoples’ Friendship University of Russia
- Moscow
- Russian Federation
| | - Carlos E. Puerto Galvis
- Laboratorio de Química Orgánica y Biomolecular
- CMN
- Universidad Industrial de Santander
- Parque Tecnológico Guatiguará
- Piedecuesta 681011
| | - Leonor Y. Vargas Méndez
- Grupo de Investigaciones Ambientales para el Desarrollo Sostenible
- Universidad Santo Tomás-Seccional Bucaramanga
- Colombia
| | - Vladimir V. Kouznetsov
- Laboratorio de Química Orgánica y Biomolecular
- CMN
- Universidad Industrial de Santander
- Parque Tecnológico Guatiguará
- Piedecuesta 681011
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44
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Shi R, Niu H, Lu L, Lei A. Pd/Cu-Catalyzed aerobic oxidative aromatic C–H bond activation/N-dealkylative carbonylation towards the synthesis of phenanthridinones. Chem Commun (Camb) 2017; 53:1908-1911. [DOI: 10.1039/c6cc08701a] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
A straightforward Pd/Cu-catalyzed oxidative C–H bond activation/N-dealkylative carbonylation of tertiary [1,1′-biphenyl]-2-anilines towards the synthesis of various biologically important phenanthridin-6(5H)-ones has been developed. A wide range of functional groups are well tolerated in this transformation.
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Affiliation(s)
- Renyi Shi
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Huiying Niu
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Lijun Lu
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- P. R. China
| | - Aiwen Lei
- College of Chemistry and Molecular Sciences
- Institute for Advanced Studies (IAS)
- Wuhan University
- Wuhan 430072
- P. R. China
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45
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Zhu RY, Farmer ME, Chen YQ, Yu JQ. A Simple and Versatile Amide Directing Group for C-H Functionalizations. Angew Chem Int Ed Engl 2016; 55:10578-99. [PMID: 27479708 PMCID: PMC5518755 DOI: 10.1002/anie.201600791] [Citation(s) in RCA: 490] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Indexed: 01/12/2023]
Abstract
Achieving selective C-H activation at a single and strategic site in the presence of multiple C-H bonds can provide a powerful and generally useful retrosynthetic disconnection. In this context, a directing group serves as a compass to guide the transition metal to C-H bonds by using distance and geometry as powerful recognition parameters to distinguish between proximal and distal C-H bonds. However, the installation and removal of directing groups is a practical drawback. To improve the utility of this approach, one can seek solutions in three directions: 1) Simplifying the directing group, 2) using common functional groups or protecting groups as directing groups, and 3) attaching the directing group to substrates via a transient covalent bond to render the directing group catalytic. This Review describes the rational development of an extremely simple and yet broadly applicable directing group for Pd(II) , Rh(III) , and Ru(II) catalysts, namely the N-methoxy amide (CONHOMe) moiety. Through collective efforts in the community, a wide range of C-H activation transformations using this type of simple directing group have been developed.
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Affiliation(s)
- Ru-Yi Zhu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Marcus E Farmer
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Yan-Qiao Chen
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute (TSRI), 10550 N. Torrey Pines Road, La Jolla, CA, 92037, USA.
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46
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Feng M, Tang B, Xu HX, Jiang X. Collective Synthesis of Phenanthridinone through C–H Activation Involving a Pd-Catalyzed Aryne Multicomponent Reaction. Org Lett 2016; 18:4352-5. [DOI: 10.1021/acs.orglett.6b02109] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Minghao Feng
- Shanghai
Key Laboratory of Green Chemistry and Chemical Process, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Bingqing Tang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Process, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
| | - Hong-Xi Xu
- School
of Pharmacy, Shanghai University of Traditional Chinese Medicine, Cai
Lun Lu 1200, Shanghai 201203, P. R. China
| | - Xuefeng Jiang
- Shanghai
Key Laboratory of Green Chemistry and Chemical Process, School of
Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Road, Shanghai, 200062, P. R. China
- State
Key Laboratory of Elemento-organic Chemistry, Nankai University, Tianjin 300071, P. R. China
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47
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Zhu R, Farmer ME, Chen Y, Yu J. Eine einfache und vielseitige dirigierende Amidgruppe zur Funktionalisierung von C‐H‐Bindungen. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201600791] [Citation(s) in RCA: 126] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Ru‐Yi Zhu
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Marcus E. Farmer
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Yan‐Qiao Chen
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
| | - Jin‐Quan Yu
- Department of Chemistry The Scripps Research Institute (TSRI) 10550 N. Torrey Pines Road La Jolla CA 92037 USA
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48
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Kuwata Y, Sonoda M, Tanimori S. Facile Synthesis of Phenanthridinone Alkaloids via Suzuki-Miyaura Cross-coupling. J Heterocycl Chem 2016. [DOI: 10.1002/jhet.2725] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yoshiyuki Kuwata
- Department of Applied Biological Sciences; Osaka Prefecture University; 1-1 Gakuencho, Nakaku, Sakai Osaka 599-8531 Japan
| | - Motohiro Sonoda
- Department of Applied Biological Sciences; Osaka Prefecture University; 1-1 Gakuencho, Nakaku, Sakai Osaka 599-8531 Japan
| | - Shinji Tanimori
- Department of Applied Biological Sciences; Osaka Prefecture University; 1-1 Gakuencho, Nakaku, Sakai Osaka 599-8531 Japan
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49
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Gollapelli KK, Kallepu S, Govindappa N, Nanubolu JB, Chegondi R. Carbonyl-assisted reverse regioselective cascade annulation of 2-acetylenic ketones triggered by Ru-catalyzed C-H activation. Chem Sci 2016; 7:4748-4753. [PMID: 30155126 PMCID: PMC6016575 DOI: 10.1039/c6sc01456a] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Accepted: 04/12/2016] [Indexed: 01/08/2023] Open
Abstract
The first reverse regioselective intermolecular annulation of aryl substituted 2-acetylenic ketones with O-substituted N-hydroxybenzamides or acrylamides followed by tandem cyclization via ruthenium-catalyzed C-H activation, is reported. Excellent reverse selectivity of alkyne insertion was induced by the weak coordination between the carbonyl group and ruthenium complex. This highly efficient and practical reaction has a broad range of substrate scope with excellent functional-group tolerance. The tandem reaction provides a wide range of polycyclic products that have an indozilidine structural motif, and are found to potentially be synthetically and pharmaceutically valuable.
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Affiliation(s)
- Krishna Kumar Gollapelli
- Division of Natural Product Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| | - Shivakrishna Kallepu
- Division of Natural Product Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| | - Nagendra Govindappa
- Division of Natural Product Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India .
| | - Jagadeesh Babu Nanubolu
- Centre for X-ray Crystallography , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India
| | - Rambabu Chegondi
- Division of Natural Product Chemistry , CSIR-Indian Institute of Chemical Technology , Hyderabad 500007 , India .
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50
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Mishra NK, Park J, Choi M, Sharma S, Jo H, Jeong T, Han S, Kim S, Kim IS. Synthesis of Phthalides through Tandem Rhodium-Catalyzed C-H Olefination and Annulation of Benzamides. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600368] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Neeraj Kumar Mishra
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Jihye Park
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Miji Choi
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Satyasheel Sharma
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Hyeim Jo
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Taejoo Jeong
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Sangil Han
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - Saegun Kim
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
| | - In Su Kim
- School of Pharmacy; Sungkyunkwan University; 440-746 Suwon Republic of Korea
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