1
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González-Fernández E, Marinus N, Dhankhar J, Linden A, Čorić I. Control over Anion Coordination on Pd(II), Cu(I), and Ag(I) with Regioisomeric Phosphine-Carboxylate Ligands. Chemistry 2024; 30:e202401215. [PMID: 38688855 DOI: 10.1002/chem.202401215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 04/26/2024] [Indexed: 05/02/2024]
Abstract
The coordination of anionic donors is involved at various stages of catalytic cycles in transition-metal catalysis, but control over the spatial positioning of anions around a metal center is a challenge in coordination chemistry. Here we show that regioisomeric phosphine-carboxylate ligands provide spatial anion control on palladium(II) centers by favoring either κ2, cis-κ1, or trans-κ1 coordination of the carboxylate donor. Additionally, the palladium(II) carboxylates, which contain a methyl donor, upon protonation, deliver metal-alkyl complexes that feature a coordinated carboxylic acid. Such complexes can be considered as models for the minima that follow the concerted metalation-deprotonation transition state for C-H activation. The predictability of the coordination modes is further demonstrated on silver(I) and copper(I) centers, for which less common structures of mononuclear and dinuclear complexes can be obtained by using spatial anion control. Our results demonstrate the potential for spatial control over carboxylate anions in coordination chemistry.
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Affiliation(s)
- Elisa González-Fernández
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, 8057, Switzerland
| | - Nittert Marinus
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, 8057, Switzerland
| | - Jyoti Dhankhar
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, 8057, Switzerland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, 8057, Switzerland
| | - Ilija Čorić
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, Zurich, 8057, Switzerland
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2
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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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3
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Xie H, Xiao Z, Song Y, Jin K, Liu H, Zhou E, Cao J, Chen J, Ding J, Yi C, Shen X, Zuo C, Ding L. Tethered Helical Ladder-Type Aromatic Lactams. J Am Chem Soc 2024; 146:11978-11990. [PMID: 38626322 DOI: 10.1021/jacs.4c01347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/18/2024]
Abstract
Tethered nonplanar aromatics (TNAs) make up an important class of nonplanar aromatic compounds showing unique features. However, the knowledge on the synthesis, structures, and properties of TNAs remains insufficient. In this work, a new type of TNAs, the tethered aromatic lactams, is synthesized via Pd-catalyzed consecutive intramolecular direct arylations. These molecules possess a helical ladder-type conjugated system of up to 13 fused rings. The overall yields ranged from 3.4 to 4.3%. The largest of the tethered aromatic lactams, 6L-Bu-C14, demonstrates a guest-adaptive hosting capability of TNAs for the first time. When binding fullerene guests, the cavity of 6L-Bu-C14 became more circular to better accommodate spherical fullerene molecules. The host-guest interaction is thoroughly studied by X-ray crystallography, theoretical calculations, fluorescence titration, and nuclear magnetic resonance (NMR) titration experiments. 6L-Bu-C14 shows stronger binding with C70 than with C60 due to the better convex-concave π-π interaction. P and M enantiomers of all tethered aromatic lactams show distinct and persistent chiroptical properties and demonstrate the potential of chiral TNAs as circularly polarized luminescence (CPL) emitters.
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Affiliation(s)
- Huidong Xie
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zuo Xiao
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yixiao Song
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Ke Jin
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongxing Liu
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
| | - Erjun Zhou
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Cao
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jiangzhao Chen
- Faculty of Material Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China
| | - Junqiao Ding
- School of Chemical Science and Technology, Yunnan University, Kunming 650091, China
| | - Chenyi Yi
- Department of Electrical Engineering, Tsinghua University, Beijing 100084, China
| | - Xingxing Shen
- College of Chemical Engineering, Hebei Normal University of Science and Technology, Qinhuangdao 066004, China
| | - Chuantian Zuo
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Liming Ding
- Center for Excellence in Nanoscience, Key Laboratory of Nanosystem and Hierarchical Fabrication (CAS), National Center for Nanoscience and Technology, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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4
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Fan XY, Long XY, Li S, Zhu JF, Cheng SL, Wang BQ, Feng C, Shi Y, Xiang SK. Palladium-Catalyzed Annulative π-Extension of Bay-Iodinated Triphenylenes to Access Polycyclic Aromatic Compounds. J Org Chem 2024; 89:4085-4097. [PMID: 38394366 DOI: 10.1021/acs.joc.3c02937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/25/2024]
Abstract
A palladium-catalyzed annulative π-extension reaction of bay-iodinated triphenylenes with aryl iodides/o-chloroaromatic carboxylic acids was developed. This approach enabled the synthesis of diverse polycyclic aromatic compounds, including dibenzo[fg,op]tetracenes, azadibenzo[fg,op]tetracenes, and tribenzo[a,g,m]coronenes. Initial studies indicate that the resulting product, 2,3,8,9,14,15-hexakis(decyloxy)tribenzo[a,g,m]coronene, exhibits good liquid-crystalline properties.
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Affiliation(s)
- Xin-Yue Fan
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Xin-Yuan Long
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Song Li
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Ji-Fa Zhu
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Shu-Lin Cheng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Bi-Qin Wang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Chun Feng
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Yingbo Shi
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
| | - Shi-Kai Xiang
- College of Chemistry and Materials Science, Sichuan Normal University, Chengdu 610068, P. R. China
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5
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Du Y, Li Q, Wang T, Wang YQ. Enantioselective Synthesis of Biphenyl-Bridged ϵ-Sultams by Organocatalytic Mannich Reactions of Cyclic N-Sulfonylimines with Unactivated Ketones. Chemistry 2024; 30:e202302904. [PMID: 37936501 DOI: 10.1002/chem.202302904] [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: 09/06/2023] [Revised: 11/06/2023] [Accepted: 11/07/2023] [Indexed: 11/09/2023]
Abstract
A highly enantioselective Mannich reaction of biphenyl-bridged seven-membered cyclic N-sulfonylimines with methyl alkyl ketones is disclosed in this study. The reaction was performed under organocatalysis by using a quinine-derived primary amine as the catalyst in combination with a Brønsted acid as the co-catalyst. High yields (up to 89 %) and excellent enantioselectivities (up to 97 % ee) were observed. For methyl alkyl ketones containing a larger alkyl substituent, specific regioselective addition to the C=N bond is favored at the methyl group. On the contrary, ketones containing a smaller alkyl substituent or hydroxyacetone substrates gave major syn selective Mannich products at the methylene group.
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Affiliation(s)
- Ying Du
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Qian Li
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - Tao Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
| | - You-Qing Wang
- Key Laboratory of Natural Medicine and, Immuno-Engineering of Henan Province, Henan University, Kaifeng, Henan, 475004, P. R. China
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6
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Sun W, Wilding-Steele L, Brown RCD, Harrowven DC. Aryl-aryl cross-coupling reactions without reagents or catalysts: photocyclization of ortho-iodoaryl ethers and related compounds via triplet aryl cation intermediates. Chem Commun (Camb) 2023; 59:10797-10800. [PMID: 37594190 DOI: 10.1039/d3cc03271j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/19/2023]
Abstract
Cyclisations of benzyl ortho-iodoaryl ethers to benzo[c]chromenes can be effected without reagents or catalysts by irradiation with UVC under flow. Reactions proceed via triplet aryl cation generation, 5-exo and 3-exo-cyclisations, and rearomatisation. They have wide scope, are easy to effect and extend to a myriad of related ring systems.
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Affiliation(s)
- Wei Sun
- Department of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
| | - Luke Wilding-Steele
- Department of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
| | - Richard C D Brown
- Department of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
| | - David C Harrowven
- Department of Chemistry, University of Southampton, Highfield, Southampton, SO17 1BJ, UK.
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7
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Zhu BB, Zhang SS, Fu JG, Lin GQ, Feng CG. Palladium-catalyzed disilylation of ortho-halophenylethylenes enabled by 2-pyridone ligand. Chem Commun (Camb) 2023; 59:5922-5925. [PMID: 37171020 DOI: 10.1039/d3cc01452e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
A palladium-catalyzed disilylation reaction applicable for a variety of non-, α-, or β-substituted and α,β-disubstituted ortho-halophenylethylenes has been developed. This reaction proceeds with high yields and very low catalyst loadings. The two C-Si bonds of the disilylated products could be well-differentiated chemoselectively in the reaction with various electrophiles.
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Affiliation(s)
- Bin-Bin Zhu
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Shu-Sheng Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Jian-Guo Fu
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
| | - Guo-Qiang Lin
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
| | - Chen-Guo Feng
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China.
- CAS Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, Shanghai 200032, China
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8
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Meng G, Wang Z, Chan HSS, Chekshin N, Li Z, Wang P, Yu JQ. Dual-Ligand Catalyst for the Nondirected C-H Olefination of Heteroarenes. J Am Chem Soc 2023; 145:8198-8208. [PMID: 36975773 PMCID: PMC10173962 DOI: 10.1021/jacs.3c01631] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Pd(II)-catalyzed nondirected C-H functionalization of heteroarenes is a significant challenge for the following reasons: poor reactivity of electron-deficient heterocycles and the unproductive coordination of Lewis basic nitrogen atoms. Existing methodologies using palladium catalysis often employ a large excess of heterocycle substrates to overcome these hurdles. Despite recent advances in nondirected functionalization of arenes that allow them to be used as limiting reagents, the reaction conditions are incompatible with electron-deficient heteroarenes. Herein we report a dual-ligand catalyst that enables Pd(II)-catalyzed nondirected C-H olefination of heteroarenes without using a large excess of substrate. In general, the use of 1-2 equiv of substrates was sufficient to obtain synthetically useful yields. The reactivity was rationalized by the synergy between two types of ligands: a bidentate pyridine-pyridone ligand promotes C-H cleavage; the monodentate heterocycle substrate acts as a second ligand to form a cationic Pd(II) complex that has high affinity for arenes. The proposed dual-ligand cooperation is supported by a combination of X-ray, kinetics, and control experiments.
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Affiliation(s)
- Guangrong Meng
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Zhen Wang
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Hau Sun Sam Chan
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Nikita Chekshin
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Zhen Li
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Peng Wang
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
| | - Jin-Quan Yu
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Road, La Jolla, California 92037, United States
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9
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Kumar S, Kajol K, Nayak P, Kumar A, Ramesh C. Synthesis of tetracyclic 4H-benzo[5,6]chromeno[3,4-d]oxazoles via palladium-catalyzed intramolecular direct heteroarylation. Chem Asian J 2023; 18:e202201151. [PMID: 36519340 DOI: 10.1002/asia.202201151] [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: 11/14/2022] [Revised: 12/12/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022]
Abstract
We report a palladium-catalyzed intramolecular direct heteroarylation of oxazole tethered β-naphthols to access corresponding tetracyclic 4H-benzo[5,6]chromeno[3,4-d]oxazoles. Various functional groups are well tolerated and furnished the desired products in good to excellent yields under the present reaction conditions. The scale-up reaction and synthetic utility of the resulting molecules have been demonstrated. Moreover, UV/vis absorption and fluorescence emission properties have been evaluated for these polyheterocyclic compounds.
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Affiliation(s)
- Sujeet Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Km Kajol
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India
| | - Prakash Nayak
- School of Chemical Sciences National Institute of Science Education and Research (NISER), Bhubaneswar, HBNI, Bhubaneswar, 752050, Odisha, India
| | - Amit Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110001, India
| | - Chintakunta Ramesh
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute BS-10/1, Sector 10 Jankipuram extension, Sitapur Road, P.O. Box 173, Lucknow, 226031, India.,Academy of Scientific and Innovative Research, New Delhi, 110001, India
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10
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Synthesis and solar cell applications of semiconducting polymers based on vinylene-bridged 5-alkoxy-6-fluorobenzo[c][1,2,5]thiadiazole (FOBTzE). Polym J 2022. [DOI: 10.1038/s41428-022-00706-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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11
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Chen X, Pei C, Liu B, Li J, Zou D, Wu Y, Wu Y. Copper-assisted trifluoromethylthiolation/radical cascade cyclization of alkynes to construct SCF 3-containing dioxodibenzothiazepines. Chem Commun (Camb) 2022; 58:8674-8677. [PMID: 35822922 DOI: 10.1039/d2cc02171d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A mild and efficient Cu-assisted trifluoromethylthiolation/radical cascade cyclization of alkynes with readily available and stable AgSCF3 as the trifluoromethylthiolating reagent has been disclosed. This transformation provides an opportunity to construct a series of potential medicinally valuable trifluoromethylthio-substituted dioxodibenzothiazepines with wide functional group compatibility. This protocol opens up a new avenue for the construction of useful trifluoromethylthiolated seven-membered N-heterocycles.
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Affiliation(s)
- Xiaoyu Chen
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Congcong Pei
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Bo Liu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Jingya Li
- Tetranov Biopharm, LLC., Zhengzhou, 450052, People's Republic of China
| | - Dapeng Zou
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China.
| | - Yusheng Wu
- College of Chemistry, Green Catalysis Center, Zhengzhou University, Zhengzhou, Henan, 450001, People's Republic of China. .,Tetranov International, Inc., 100 Jersey Avenue, Suite A340, New Brunswick, NJ, 08901, USA.
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12
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Geng J, Fang Z, Tu G, Zhao Y. Non-directed highly para-selective C-H functionalization of TIPS-protected phenols promoted by a carboxylic acid ligand. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2022.06.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Zheng X, Shen Q, Yin C, Li L, Zhong T, Yu C. Photoinduced Three‐Component Difluoroamidosulfonylation/Bicyclization: Regioselectivity Synthesis of Seven‐Membered Dibenzosultams. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202200292] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Xiangyun Zheng
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Qitao Shen
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chuanliu Yin
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Lianghao Li
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Tianshuo Zhong
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
| | - Chuanming Yu
- College of Pharmaceutical Sciences Zhejiang University of Technology Hangzhou 310014 People's Republic of China
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14
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Dutta S, Bhattacharya T, Geffers FJ, Bürger M, Maiti D, Werz DB. Pd-catalysed C-H functionalisation of free carboxylic acids. Chem Sci 2022; 13:2551-2573. [PMID: 35340865 PMCID: PMC8890104 DOI: 10.1039/d1sc05392b] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Accepted: 01/07/2022] [Indexed: 11/21/2022] Open
Abstract
Pd-catalysed C-H functionalisation of free carboxylic acids has drawn significant attention over the last few years due to the predominance of carboxylic acid moieties in pharmaceuticals and agrochemicals. But their coordinating ability was overlooked and masked by exogenous directing groups for a long time. Even other crucial roles of carboxylic acids as additives and steric inducers that directly influence the mode of a reaction have been widely neglected. This review aims to embrace all of the diverse aspects of carboxylic acids except additive and steric effects by concisely and systematically describing their versatile role in Pd-catalysed proximal and distal C-H activation reactions that could be implemented in the pharmaceutical and agrochemical industries. In addition, the mechanistic perspectives along with several recent strategies developed in the last few years discussed here will serve as educational resources for future research.
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Affiliation(s)
- Suparna Dutta
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India https://www.dmaiti.com
| | - Trisha Bhattacharya
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India https://www.dmaiti.com
| | - Finn J Geffers
- Technische Universität Braunschweig, Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany https://www.werzlab.de
| | - Marcel Bürger
- Technische Universität Braunschweig, Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany https://www.werzlab.de
| | - Debabrata Maiti
- Department of Chemistry, Indian Institute of Technology Bombay Powai Mumbai 400076 India https://www.dmaiti.com
| | - Daniel B Werz
- Technische Universität Braunschweig, Institute of Organic Chemistry Hagenring 30 38106 Braunschweig Germany https://www.werzlab.de
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15
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Tahara K, Takezaki S, Ozawa Y, Abe M. Synthesis of an Organometallic Alkyl-Co(III) Complex with Amidoquinoline Directing Groups via C(sp3)-H Activation and its UV-vis/NMR Spectroscopic, Crystallographic, DFT, and Electrochemical Studies. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keishiro Tahara
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Shun Takezaki
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Yoshiki Ozawa
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Masaaki Abe
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
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16
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Heredia MD, Puiatti M, Rossi RA, Budén ME. Visible light mediated synthesis of 6 H-benzo[ c]chromenes: transition-metal-free intramolecular direct C-H arylation. Org Biomol Chem 2021; 20:228-239. [PMID: 34889351 DOI: 10.1039/d1ob01673c] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A synthetic approach towards the 6H-benzo[c]chromene ring under visible light and transition-metal-free conditions has been developed. Benzochromenes are synthesized from the corresponding (2-halobenzyl) phenyl ethers or (2-halophenyl) benzyl ethers using KOtBu in dimethyl sulfoxide (DMSO) at room temperature (rt) and blue light-emitting diodes (LEDs) as the light source. This methodology replaces the use of ligands or additives, high temperatures and toxic solvents. The photostimulated reaction exhibits very good tolerance to different functional groups and 5H-dibenzo[c,f]chromenes are also effectively obtained. An electron donor-acceptor complex formed by the dimsyl anion and (2-halobenzyl) phenyl ethers was found and it induces the ET as the initial step in the photocyclization reaction. Furthermore, in order to explain the regiochemical outcome of this reaction, a theoretical analysis was performed using DFT methods.
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Affiliation(s)
- Micaela D Heredia
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA Córdoba, Argentina.
| | - Marcelo Puiatti
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA Córdoba, Argentina.
| | - Roberto A Rossi
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA Córdoba, Argentina.
| | - María E Budén
- INFIQC, Departamento de Química Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, X5000HUA Córdoba, Argentina.
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17
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Kanai Y, Müller‐Borges D, Plenio H. The Regioselective Arylation of 1,3‐Benzodioxoles. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101014] [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]
Affiliation(s)
- Yuki Kanai
- Organometallic Chemistry Technische Universität Darmstadt Alarich-Weiss-Str. 12 64287 Darmstadt Germany
| | - Dorian Müller‐Borges
- Organometallic Chemistry Technische Universität Darmstadt Alarich-Weiss-Str. 12 64287 Darmstadt Germany
| | - Herbert Plenio
- Organometallic Chemistry Technische Universität Darmstadt Alarich-Weiss-Str. 12 64287 Darmstadt Germany
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18
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Shelke YG, Hande PE, Gharpure SJ. Recent advances in the synthesis of pyrrolo[1,2- a]indoles and their derivatives. Org Biomol Chem 2021; 19:7544-7574. [PMID: 34524330 DOI: 10.1039/d1ob01103k] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The pyrrolo[1,2-a]indole unit is a privileged heterocycle found in numerous natural products and has been shown to exhibit diverse pharmacological properties. Thus, recent years have witnessed immense interest from the synthesis community on the synthesis of this scaffold. In light of the ever-increasing demand for pyrrolo[1,2-a]indoles in drug discovery, this review provides an overview of recent synthesis methods for the preparation of pyrrolo[1,2-a]indoles and their derivatives. The mechanistic pathway and stereo-electronic factors affecting the yield and selectivity of the product are briefly explained. Furthermore, we have attempted to demonstrate the utility of the developed methods in the synthesis of bioactive molecules and natural products, wherever offered.
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Affiliation(s)
- Yogesh G Shelke
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Pankaj E Hande
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
| | - Santosh J Gharpure
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai-400076, India.
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19
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Zhu BB, Ye WB, He ZT, Zhang SS, Feng CG, Lin GQ. Regioselective Tandem C–H Alkylation/Coupling Reaction of ortho-Iodophenylethylenes via C, C-Pallada(II)cycles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03386] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Bin-Bin Zhu
- Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Wen-Bo Ye
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Zhi-Tao He
- Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Shu-Sheng Zhang
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Chen-Guo Feng
- Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Guo-Qiang Lin
- Key Laboratory of Synthetic Chemistry of Natural Substances, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Shanghai 200032, China
- The Research Center of Chiral Drugs, Innovation Research Institute of Traditional Chinese Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
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20
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Iwata T, Kumagai S, Yoshinaga T, Hanada M, Shiota Y, Yoshizawa K, Shindo M. Quadruple Role of Pd Catalyst in Domino Reaction Involving Aryl to Alkyl 1,5-Pd Migration to Access 1,9-Bridged Triptycenes. Chemistry 2021; 27:11548-11553. [PMID: 34125459 DOI: 10.1002/chem.202101728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Indexed: 12/21/2022]
Abstract
A Pd-catalyzed domino reaction of 1,8,13-tribromo-9-methoxytriptycenes is reported. Under conventional Suzuki coupling conditions, the triptycenes underwent multiple transformations to give 1,9-bridged triptycenes. Based on mechanistic investigations, a single Pd catalyst functions as Pd0 , PdII and PdIV species to catalyze four distinct processes: (1) aryl to alkyl 1,5-Pd migration, (2) intramolecular arylation, (3) homocoupling of phenylboronic acid and (4) Suzuki coupling. DFT calculations revealed that 1,5-Pd migration likely proceeds via both concerted PdII and stepwise PdIV routes. Asymmetric synthesis of the chiral triptycenes, as well as optical resolution, and further transformation are also reported.
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Affiliation(s)
- Takayuki Iwata
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Satoru Kumagai
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Tatsuro Yoshinaga
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Masato Hanada
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
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21
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Zhang ZQ, Xu YH, Dai JC, Li Y, Sheng J, Wang XS. Copper-Catalyzed Trifluoromethylation/Cyclization of Alkynes for Synthesis of Dioxodibenzothiazepines. Org Lett 2021; 23:2194-2198. [PMID: 33635668 DOI: 10.1021/acs.orglett.1c00344] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A facile and efficient approach for the synthesis of the CF3-containing dioxodibenzothiazepines has been developed via copper-catalyzed trifluoromethylation/cyclization of alkynes utilizing a radical relay strategy. This method has demonstrated low catalyst loading, high regiocontrol, and broad scope under mild conditions. Good compatibility for the N-protecting group, gram-scale experiment, and further derivation of product prove the versatility of this transformation.
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Affiliation(s)
- Zi-Qi Zhang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yi-Hao Xu
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Jing-Cheng Dai
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Yan Li
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Jie Sheng
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
| | - Xi-Sheng Wang
- Hefei National Laboratory for Physical Sciences at the Microscale and Department of Chemistry, University of Science and Technology of China, 96 Jinzhai Road, Hefei, Anhui 230026, China
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22
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Brześkiewicz J, Stańska B, Dąbrowski P, Loska R. C−H Activation and Cross‐Coupling of Acyclic Aldonitrone. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Jakub Brześkiewicz
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Barbara Stańska
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Piotr Dąbrowski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Rafał Loska
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
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23
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Zhong JS, Yu Y, Shi Z, Ye KY. An electrochemical perspective on the roles of ligands in the merger of transition-metal catalysis and electrochemistry. Org Chem Front 2021. [DOI: 10.1039/d0qo01227k] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A perspective on the roles of ligands in transition-metal catalysis under electrochemical conditions is provided.
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Affiliation(s)
- Jun-Song Zhong
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Yi Yu
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Zhaojiang Shi
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
| | - Ke-Yin Ye
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University)
- College of Chemistry
- Fuzhou University
- Fuzhou 350108
- China
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24
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Dhankhar J, González-Fernández E, Dong CC, Mukhopadhyay TK, Linden A, Čorić I. Spatial Anion Control on Palladium for Mild C-H Arylation of Arenes. J Am Chem Soc 2020; 142:19040-19046. [PMID: 33125849 DOI: 10.1021/jacs.0c09611] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
C-H arylation of arenes without the use of directing groups is a challenge, even for simple molecules, such as benzene. We describe spatial anion control as a concept for the design of catalytic sites for C-H bond activation, thereby enabling nondirected C-H arylation of arenes at ambient temperature. The mild conditions enable late-stage structural diversification of biologically relevant small molecules, and site-selectivity complementary to that obtained with other methods of arene functionalization can be achieved. These results reveal the potential of spatial anion control in transition-metal catalysis for the functionalization of C-H bonds under mild conditions.
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Affiliation(s)
- Jyoti Dhankhar
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Elisa González-Fernández
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Chao-Chen Dong
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Tufan K Mukhopadhyay
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Anthony Linden
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
| | - Ilija Čorić
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland
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25
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Kim D, Choi G, Kim W, Kim D, Kang YK, Hong SH. The site-selectivity and mechanism of Pd-catalyzed C(sp 2)-H arylation of simple arenes. Chem Sci 2020; 12:363-373. [PMID: 34163602 PMCID: PMC8178950 DOI: 10.1039/d0sc05414c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
Control over site-selectivity is a critical challenge for practical application of catalytic C–H functionalization reactions in organic synthesis. Despite the seminal breakthrough of the Pd-catalyzed C(sp2)–H arylation of simple arenes via a concerted metalation–deprotonation (CMD) pathway in 2006, understanding the site-selectivity of the reaction still remains elusive. Here, we have comprehensively investigated the scope, site-selectivity, and mechanism of the Pd-catalyzed direct C–H arylation reaction of simple arenes. Counterintuitively, electron-rich arenes preferably undergo meta-arylation without the need for a specifically designed directing group, whereas electron-deficient arenes bearing fluoro or cyano groups exhibit high ortho-selectivity and electron-deficient arenes bearing bulky electron-withdrawing groups favor the meta-product. Comprehensive mechanistic investigations through a combination of kinetic measurements and stoichiometric experiments using arylpalladium complexes have revealed that the Pd-based catalytic system works via a cooperative bimetallic mechanism, not the originally proposed monometallic CMD mechanism, regardless of the presence of a strongly coordinating L-type ligand. Notably, the transmetalation step, which is influenced by a potassium cation, is suggested as the selectivity-determining step. The transmetalation step, not the C–H activation step, is suggested as the selectivity-determining step in Pd-catalyzed C–H arylation of simple arenes.![]()
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Affiliation(s)
- Daeun Kim
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea .,Department of Chemistry, College of Natural Sciences, Seoul National University Seoul 08826 Republic of Korea
| | - Geunho Choi
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea .,Department of Chemistry, College of Natural Sciences, Seoul National University Seoul 08826 Republic of Korea
| | - Weonjeong Kim
- Department of Chemistry, College of Natural Sciences, Seoul National University Seoul 08826 Republic of Korea
| | - Dongwook Kim
- Center for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS) Daejeon 34141 Republic of Korea
| | - Youn K Kang
- Department of Chemical Energy Engineering, Sangmyung University Seoul 03016 Korea
| | - Soon Hyeok Hong
- Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST) Daejeon 34141 Republic of Korea
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26
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Gao LB, Yang CP, Li XJ, Li P. Syntheses, crystal structures and electrochemical properties of a series of ruthenium(II) bipyridine complexes with ferrocene carboxylate ligands. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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27
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Tanji Y, Hamaguchi R, Tsuji Y, Fujihara T. Pd-Catalyzed intermolecular C-H bond arylation reactions: effect of bulkiness of carboxylate ligands. Chem Commun (Camb) 2020; 56:3843-3846. [PMID: 32159546 DOI: 10.1039/d0cc01129k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A bulky carboxylic acid bearing one 1-adamantylmethyl and two methyl substituents at the α-position is demonstrated to work as an efficient carboxylate ligand source in Pd-catalyzed intermolecular C(sp2)-H bond arylation reactions. The reactions proceeded smoothly under mild conditions, taking advantage of the steric bulk of the carboxylate ligands.
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Affiliation(s)
- Yutaka Tanji
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan.
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28
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Carrow BP, Sampson J, Wang L. Base-Assisted C-H Bond Cleavage in Cross-Coupling: Recent Insights into Mechanism, Speciation, and Cooperativity. Isr J Chem 2020; 60:230-258. [PMID: 32669731 PMCID: PMC7363398 DOI: 10.1002/ijch.201900095] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2019] [Accepted: 10/25/2019] [Indexed: 01/12/2023]
Abstract
This review analyzes recent mechanistic studies that have provided new insights into how the structure of a metal complex influences the rate and selectivity of base-assisted C-H cleavage. Partitioning a broader mechanistic continuum into classes delimited by the polarization between catalyst and substrate during C-H cleavage is postulated as a method to identify catalysts favoring electrophilic or nucleophilic reactivity patterns, which may be predictive based on structural features of the metal complex (i.e., oxidation state, d-electron count, charge). Multi-metallic cooperativity and polynuclear speciation also provide new avenues to affect energy barriers for C-H cleavage and site selectivity beyond the limitations of single metal catalysts. An improved understanding of mechanistic nuances and structure-activity relationships on this important bond activation step carries important implications for efficiency and controllable site selectivity in non-directed C-H functionalization.
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Affiliation(s)
- Brad P Carrow
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Jessica Sampson
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Long Wang
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
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29
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Dong Y, Yu JT, Sun S, Cheng J. Rh(iii)-Catalyzed sequential ortho-C-H oxidative arylation/cyclization of sulfoxonium ylides with quinones toward 2-hydroxy-dibenzo[b,d]pyran-6-ones. Chem Commun (Camb) 2020; 56:6688-6691. [PMID: 32412018 DOI: 10.1039/d0cc00176g] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
A rhodium(iii)-catalyzed ortho-C-H functionalization of sulfoxonium ylides followed by intramolecular annulation reactions with quinones was described, where the carbonyl in sulfoxonium ylides served as a chelation group. This protocol leads to the efficient formation of 2-hydroxy-6H-benzo[c]chromen-6-one derivatives, proceeding with the cleavage of the C(O)-S bond in sulfoxonium ylides. This protocol featured high chemo-selectivity and functional group tolerance, where sulfoxonium ylides acted as the aroyl sources.
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Affiliation(s)
- Yaqun Dong
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Jin-Tao Yu
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Song Sun
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
| | - Jiang Cheng
- School of Petrochemical Engineering, Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, and Jiangsu Province Key Laboratory of Fine Petrochemical Engineering, Changzhou University, Gehu Road 1, Changzhou, 213164, P. R. China.
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30
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Yoshida H, Seki M, Kamio S, Tanaka H, Izumi Y, Li J, Osaka I, Abe M, Andoh H, Yajima T, Tani T, Tsuchimoto T. Direct Suzuki–Miyaura Coupling with Naphthalene-1,8-diaminato (dan)-Substituted Organoborons. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03666] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Hiroto Yoshida
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Michinari Seki
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Shintaro Kamio
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Hideya Tanaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Yuki Izumi
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Jialun Li
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Itaru Osaka
- Department of Applied Chemistry, Graduate School of Engineering, Hiroshima University, Higashi-Hiroshima 739-8527, Japan
| | - Manabu Abe
- Department of Chemistry, Graduate School of Science, Hiroshima University, Higashi-Hiroshima 739-8526, Japan
| | - Hiroki Andoh
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Japan
| | - Tomoki Yajima
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Japan
| | - Tomohiro Tani
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Japan
| | - Teruhisa Tsuchimoto
- Department of Applied Chemistry, School of Science and Technology, Meiji University, 1-1-1 Higashimita, Tama-ku, Kawasaki 214-8571, Japan
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31
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Gou BB, Liu HF, Chen J, Zhou L. Palladium-Catalyzed Site-Selective C(sp 3)-H Arylation of Phenylacetaldehydes. Org Lett 2019; 21:7084-7088. [PMID: 31461298 DOI: 10.1021/acs.orglett.9b02650] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
We describe a Pd-catalyzed selective C-H arylation reaction of phenylacetaldehydes using l-valine as the transient directing group. This process showed a broad substrate scope and excellent selectivity in which a ligand-controlled functionalization of the unactivated β-C(sp3)-H bond. In addition, enantioselective arylation of phenylacetaldehydes was preliminarily explored by utilizing a bulky chiral transient directing group.
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Affiliation(s)
- Bo-Bo Gou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, P.R. China
| | - Hang-Fan Liu
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, P.R. China
| | - Jie Chen
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, P.R. China
| | - Ling Zhou
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, College of Chemistry & Materials Science, National Demonstration Center for Experimental Chemistry Education, Northwest University, Xi'an 710127, P.R. China
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32
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Huang S, Hong X, Cui HZ, Zhou Q, Lin YJ, Hou XF. N-Methylation of ortho-substituted aromatic amines with methanol catalyzed by 2-arylbenzo[d]oxazole NHC–Ir(iii) complexes. Dalton Trans 2019; 48:5072-5082. [DOI: 10.1039/c9dt00218a] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
By the modification on benzo[d]oxazolyl-NHC-ligated cyclometalated Ir complexes, the N-methylation of ortho-substituted aromatic amines with methanol was remarkably improved.
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Affiliation(s)
- Shuang Huang
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - Xi Hong
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - He-Zhen Cui
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - Quan Zhou
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - Yue-Jian Lin
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
| | - Xiu-Feng Hou
- Department of Chemistry
- Fudan University
- Shanghai 200438
- China
- Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan
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33
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Zhao ZB, Shi L, Meng FJ, Li Y, Zhou YG. Synthesis of chiral seven-membered cyclic sulfonamides through palladium-catalyzed arylation of cyclic imines. Org Chem Front 2019. [DOI: 10.1039/c8qo01323c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
An enantioselective palladium-catalyzed addition of arylboronic acids to seven-membered cyclic N-sulfonyl aldimines and ketimines has been developed, giving the chiral cyclic sulfonamides with excellent yields and up to 99% ee.
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Affiliation(s)
- Zi-Biao Zhao
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Lei Shi
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Fan-Jie Meng
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yaming Li
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
| | - Yong-Gui Zhou
- State Key Laboratory of Fine Chemicals
- School of Chemistry
- Dalian University of Technology
- Dalian 116024
- P. R. China
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34
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Zhang T, Hu X, Dong X, Li G, Lu H. Iridium-Catalyzed Unreactive C(sp 3)-H Amination with 2,2,2-Trichloroethoxycarbonyl Azide. Org Lett 2018; 20:6260-6264. [PMID: 30232895 DOI: 10.1021/acs.orglett.8b02738] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
An additive-assisted iridium-catalyzed directed C(sp3)-H amination with 2,2,2-trichloroethoxycarbonyl azide as an amino source is reported. Both carboxylate anions and the corresponding cations in the additives are crucial to achieve satisfactory efficiency. Sodium acetate or n-pentanoic acid can promote the amination of various primary C(sp3)-H bonds adjacent to secondary, tertiary, and quaternary carbons in ketoximes or N-aromatic heterocycles, respectively, providing a practical route to versatile β-amino ketoxime and N-heteroaryl ethanamine derivatives. The amination products can be treated as isocyanate analogues and can be converted to other useful amino functionalities. An iridacyclic compound was isolated and identified as a plausible intermediate.
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Affiliation(s)
- Tao Zhang
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , 210093 , China
| | - Xuejiao Hu
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , 210093 , China
| | - Xunqing Dong
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , 210093 , China
| | - Guigen Li
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , 210093 , China.,Department of Chemistry and Biochemistry , Texas Tech University , Lubbock , Texas 79409-1061 , United States
| | - Hongjian Lu
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering , Nanjing University , Nanjing , 210093 , China
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35
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Beattie DD, Grunwald AC, Perse T, Schafer LL, Love JA. Understanding Ni(II)-Mediated C(sp3)–H Activation: Tertiary Ureas as Model Substrates. J Am Chem Soc 2018; 140:12602-12610. [DOI: 10.1021/jacs.8b07708] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- D. Dawson Beattie
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Anna C. Grunwald
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Thibaut Perse
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Laurel L. Schafer
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
| | - Jennifer A. Love
- Department of Chemistry, The University of British Columbia, 2036 Main Mall, Vancouver, British Columbia V6T 1Z1, Canada
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