1
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Kumar R, Dohi T, Zhdankin VV. Organohypervalent heterocycles. Chem Soc Rev 2024; 53:4786-4827. [PMID: 38545658 DOI: 10.1039/d2cs01055k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/08/2024]
Abstract
This review summarizes the structural and synthetic aspects of heterocyclic molecules incorporating an atom of a hypervalent main-group element. The term "hypervalent" has been suggested for derivatives of main-group elements with more than eight valence electrons, and the concept of hypervalency is commonly used despite some criticism from theoretical chemists. The significantly higher thermal stability of hypervalent heterocycles compared to their acyclic analogs adds special features to their chemistry, particularly for bromine and iodine. Heterocyclic compounds of elements with double bonds are not categorized as hypervalent molecules owing to the zwitterionic nature of these bonds, resulting in the conventional 8-electron species. This review is focused on hypervalent heterocyclic derivatives of nonmetal main-group elements, such as boron, silicon, nitrogen, carbon, phosphorus, sulfur, selenium, bromine, chlorine, iodine(III) and iodine(V).
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Affiliation(s)
- Ravi Kumar
- Department of Chemistry, J C Bose University of Science and Technology, YMCA, NH-2, Sector-6, Mathura Road, Faridabad, 121006, Haryana, India.
| | - Toshifumi Dohi
- Graduate School of Pharmaceutical Sciences, Ritsumeikan University, 1-1-1 Nojihigashi, Kusatsu, Shiga, 525-8577, Japan.
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, 1038 University Drive, 126 HCAMS University of Minnesota Duluth, Duluth, Minnesota 55812, USA.
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2
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Mishra S, Aghi A, Kumar A. Rh(III)-Catalyzed Controlled Ortho-Amidation of Arylamides with Dioxazolones Using Weakly Coordinating Native Primary Amide as the Directing Group. J Org Chem 2024; 89:5606-5618. [PMID: 38557043 DOI: 10.1021/acs.joc.4c00116] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Herein, we report a controlled introduction of an amide unit at the ortho-position of an electron-deficient arylamide system without affording any cyclized products using user-friendly dioxazolone as an amidating reagent in the presence of a Rh(III)-catalyst. This is the first report where native primary amide has been utilized as a weakly coordinating group for site-selective C-N bond formation reaction. The developed protocol works under external auxiliary-free conditions with a wide substrate scope.
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Affiliation(s)
- Saksham Mishra
- Department of Chemistry, Indian Institute of Technology, Bihta, Patna 801106, Bihar, India
| | - Anjali Aghi
- Department of Chemistry, Indian Institute of Technology, Bihta, Patna 801106, Bihar, India
| | - Amit Kumar
- Department of Chemistry, Indian Institute of Technology, Bihta, Patna 801106, Bihar, India
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3
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Abdukerem D, Chen H, Mao Z, Xia K, Zhu W, Liu C, Yu Y, Abdukader A. Transition metal-free C(sp 3)-H selenation of β-ketosulfones. Org Biomol Chem 2024; 22:2075-2080. [PMID: 38363158 DOI: 10.1039/d4ob00006d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/17/2024]
Abstract
The installation of selenium groups has become an essential step across a number of industries such as agrochemicals, drug discovery, and materials. However, direct C(sp3)-H selenation, which is most atom economical, remains a formidable challenge, and only a few examples have been reported to date. In this article, we introduce the transition metal-free C(sp3)-H selenation with the easily available β-ketosulfones and diselenides as the material source. This benign protocol permits access to a broad spectrum of α-aryl(alkyl) seleno-β-ketosulfones in high yields with outstanding functional group compatibility. Distinct advantages of this protocol over all previous methods encompass the utilization of base and air as an oxidant, room temperature, and enhanced green chemistry matrices.
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Affiliation(s)
- Dilshat Abdukerem
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Hui Chen
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Zechuan Mao
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Kun Xia
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Wenli Zhu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Changhong Liu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Yuming Yu
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
| | - Ablimit Abdukader
- State Key Laboratory of Chemistry and Utilization of Carbon Based Energy Resources, College of Chemistry, Xinjiang University, Urumqi 830017, China.
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4
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Tian H, Hou T, Yang X, Xu H, Dong Y. Cp*Ir III-Catalyzed C 8-Selective C-H Activation Enables Room-Temperature Direct Arylation of Quinoline N-Oxides with Arylsilanes. J Org Chem 2023; 88:16365-16375. [PMID: 37948572 DOI: 10.1021/acs.joc.3c01869] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The Cp*Ir-catalyzed C8-selective arylation of quinoline N-oxides with arylsilanes is developed. This C-H activation transformation can be carried out under mild reaction conditions in good yields with a broad substrate scope and excellent functional-group tolerance. This protocol can be easily used to synthesize diverse quinoline derivatives and enable the late-stage modification of quinoline drugs. A plausible reaction mechanism is elucidated based on a series of preliminary mechanistic studies.
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Affiliation(s)
- Hua Tian
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Tingting Hou
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Xin Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Heng Xu
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
| | - Yi Dong
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Beijing Key Laboratory of Active Substances Discovery and Druggability Evaluation, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Key Laboratory of Small Molecule Immuno-Oncology Drug Discovery, Chinese Academy of Medical Sciences, Beijing 100050, China
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5
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Aher YN, Bhaduri N, Pawar AB. Advances in transition metal-catalyzed C-H amination strategies using anthranils. Org Biomol Chem 2023; 21:8794-8812. [PMID: 37901918 DOI: 10.1039/d3ob01421e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2023]
Abstract
Modern times have witnessed an uprise in the synthesis and derivatization of nitrogen-containing fused heterocycles. Amination reactions involving nitrene chemistry have always been the most convenient choice for the incorporation of a nitrogen atom in a molecule. The utilization of an open nitrene species harnesses harsh conditions. Hence, transition metal-catalyzed C-H amination reactions using aminating agents have been an attractive choice. Electrophilic aminating agents for C-H amination reactions are well exploited due to their desirable reaction conditions. Out of all, anthranils have paved the way forward due to their utility in simultaneously forming two new functional groups (amine and carbonyl). Amination using anthranils follows a metal-nitrenoid pathway. Often, the amination has been followed by a Lewis acid or transition metal-mediated intramolecular cyclization to directly produce fused heterocycles. This review broadly demonstrates the utilization of anthranils as an aminating agent for transition metal-catalyzed C-H amination reactions. The focus has been given to the scope, limitations, and mechanistic understanding of using such an electrophilic aminating agent, anthranil, with transition metals.
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Affiliation(s)
- Yogesh N Aher
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
| | - Nilanjan Bhaduri
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
| | - Amit B Pawar
- School of Chemical Sciences, Indian Institute of Technology Mandi, Himachal Pradesh, 175075, India.
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Wu M, Lian N, Wu C, Wu X, Chen H, Lin C, Zhou S, Ke F. Metal-free visible-induced C(sp 2)-C(sp 2) coupling of quinoxalin-2( H)-ones via oxidative cleavage of the C-N bond. RSC Adv 2023; 13:18328-18331. [PMID: 37333794 PMCID: PMC10274563 DOI: 10.1039/d3ra03479h] [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: 05/24/2023] [Accepted: 06/12/2023] [Indexed: 06/20/2023] Open
Abstract
A C(sp2)-C(sp2) reaction between aromatic hydrazines and quinoxalines has been developed through a photocatalytic system. The protocol is established for C(sp2)-N bond cleavage and direct C(sp2)-H functionalization for the coupling of C(sp2)-C(sp2) via photocatalysis under mild and ideal air conditions without the presence of a strong base and metal. The mechanistic studies reveal that the generation of a benzene radical via the oxidative cleavage of aromatic hydrazines for the cross-coupling of C(sp2)-C(sp2) with the assistance of a photocatalyst is essential. The process exhibits excellent compatibility with functional groups and provides convenient access to various 3-arylquinoxalin-2(1H)-ones in good to excellent yields.
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Affiliation(s)
- Mei Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Nancheng Lian
- Department of Spinal Surgery, The First Affiliated Hospital of Fujian Medical University Fuzhou 350005 China
| | - Cuimin Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Xinyao Wu
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Houzheng Chen
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Chen Lin
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Sunying Zhou
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
| | - Fang Ke
- Institute of Materia Medica, School of Pharmacy, Fujian Provincial Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University Fuzhou 350122 China
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7
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Stroek W, Albrecht M. Discovery of a simple iron catalyst reveals the intimate steps of C-H amination to form C-N bonds. Chem Sci 2023; 14:2849-2859. [PMID: 36937598 PMCID: PMC10016609 DOI: 10.1039/d2sc04170g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Accepted: 12/28/2022] [Indexed: 12/29/2022] Open
Abstract
Formation of ubiquitous C-N bonds traditionally uses prefunctionalized carbon precursors. Recently, metal-catalyzed amination of unfunctionalized C-H bonds with azides has become an attractive and atom-economic strategy for C-N bond formation, though all catalysts contain sophisticated ligands. Here, we report Fe(HMDS)2 (HMDS = N(SiMe3)2 -) as an easy-to-prepare catalyst for intramolecular C-H amination. The catalyst shows unprecedented turnover frequencies (110 h-1 vs. 70 h-1 reported to date) and requires no additives. Amination is successful for benzylic and aliphatic C-H bonds (>80% yield) and occurs even at room temperature. The simplicity of the catalyst enabled for the first time comprehensive mechanistic investigations. Kinetic, stoichiometric, and computational studies unveiled the intimate steps of the C-H amination process, including the resting state of the catalyst and turnover-limiting N2 loss of the coordinated azide. The high reactivity of the iron imido intermediate is rationalized by its complex spin system revealing imidyl and nitrene character.
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Affiliation(s)
- Wowa Stroek
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern CH-3012 Bern Switzerland
| | - Martin Albrecht
- Department of Chemistry, Biochemistry, and Pharmaceutical Sciences, University of Bern CH-3012 Bern Switzerland
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8
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Huang XK, Li LP, Zhou HY, Xiong MF, Fan JY, Ye BH. Switching the Photoreactions of Ir(III) Diamine Complexes between C-N Coupling and Dehydrogenation under Visible Light Irradiation. Inorg Chem 2022; 61:20834-20847. [PMID: 36520143 DOI: 10.1021/acs.inorgchem.2c03161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The selective photoreactions under mild conditions play an important role in synthetic chemistry. Herein, efficient and mild protocols for switching the photoreactions of Ir(III)-diamine complexes between the interligand C-N coupling and dehydrogenation are developed in the presence of O2 in EtOH solution. The photoreactions of achiral diamine complexes rac-[Ir(L)2(dm)](PF6) (L is 2-phenylquinoline or 2-(2,4-difluorophenyl)quinoline, dm is 1,2-ethylenediamine, 1,2-diaminopropane, 2-methyl-1,2-diamino-propane, or N,N'-dimethyl-1,2-ethylenediamine) are competitive in the oxidative C-N coupling and dehydrogenation at room temperature, which can be switched into the interligand C-N coupling reaction at 60 °C, affording hexadentate complexes in good to excellent yields, or the dehydrogenative reaction in the presence of a catalytic amount of TEMPO as an additive, affording imine complexes. Mechanism studies reveal that 1O2 is the major reactive oxygen species, and metal aminyl is the key intermediate in the formation of the oxidative C-N coupling and imine products in the photoreaction processes. These will provide a new and practical protocol for the synthesis of multidentate and imine ligands in situ via the postcoordinated strategy under mild conditions.
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Affiliation(s)
- Xiao-Kang Huang
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Li-Ping Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Hai-Yun Zhou
- Instrumental Analysis and Research Center, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Ming-Feng Xiong
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Jing-Yan Fan
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275 Guangdong, China
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9
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Maurya NK, Yadav S, Chaudhary D, Kumar D, Ishu K, Kuram MR. Palladium-Catalyzed C(sp 3)-H Biarylation of 8-Methyl Quinolines with Cyclic Diaryliodonium Salts to Access Functionalized Biaryls and Fluorene Derivatives. J Org Chem 2022; 87:13744-13749. [PMID: 36198197 DOI: 10.1021/acs.joc.2c01405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Herein, we have developed the cyclic diaryliodonium salts as biarylating agents in the C(sp3)-H functionalization using 8-methyl quinoline as the intrinsic directing group. The oxidant-free reaction produces a vast array of the biarylated products with iodo functionality that can be further functionalized. Additionally, intramolecular C(sp3)-H functionalization in a stepwise manner under palladium-catalyzed conditions produced the fluorene derivatives in excellent yields.
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Affiliation(s)
- Naveen Kumar Maurya
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Suman Yadav
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dhananjay Chaudhary
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dharmendra Kumar
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Km Ishu
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Malleswara Rao Kuram
- Medicinal & Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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10
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Dong X, Shang M, Chen S, Zhang T, Jalani HB, Lu H. Carbonyl-Assisted Iridium-Catalyzed C-H Amination Using 2,2,2-Trichloroethoxycarbonyl Azide. J Org Chem 2022; 87:13990-14004. [PMID: 36190135 DOI: 10.1021/acs.joc.2c01636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The carbonyl-directed, mono C-H amination of arenes has been achieved using [Cp*Ir(III)Cl2]2 as the catalyst and 2,2,2-trichloroethoxycarbonyl (Troc) azide as an aminating reagent. The amination proceeds smoothly with a variety of arylcarbonyl compounds, including alkyl and vinyl arylketones, secondary and tertiary aryl amides, and acetyl indoles. The resulting ortho-TrocNH arylcarbonyl compounds are easily transformed to the corresponding free arylamines, aryl carbamates, or aryl ureas. Taking advantage of the electrophilic nature of both Troc and carbonyl groups in ortho-TrocNH arylcarbonyl compounds, the subsequent cyclization with dinucleophilic reagents has also been demonstrated. This provides an efficient strategy for the construction of aryl-fused N-heterocycles.
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Affiliation(s)
- 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, P. R. China
| | - Mingzhou Shang
- Institute of Chemistry and BioMedical Sciences, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, P. R. China
| | - Shuguang Chen
- Key Laboratory of Functional Molecular Solids, Ministry of Education, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China
| | - 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, P. R. China
| | - Hitesh B Jalani
- Smart BioPharm, 310-Pilotplant, Incheon Techno-Park, 12-Gaetbeol-ro, Yeonsu-gu, Incheon 21999, Republic of Korea
| | - 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, P. R. China
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11
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Nekrasov RI, Peganova TA, Fedyanin IV, Gutsul EI, Filippov OA, Belkova NV, Kalsin AM. Versatile Reactivity of Half-Sandwich Rhodium(III) Iminophosphonamide Complexes. Inorg Chem 2022; 61:16081-16092. [PMID: 36149890 DOI: 10.1021/acs.inorgchem.2c02478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Novel 18e̅ and 16e̅ pentamethylcyclopentadienyl rhodium(III) complexes [(η5-C5Me5)RhX(NPN)] (1a,b, X = Cl; 2a-c, X = PF6, BAr4F) with chelating zwitterionic iminophosphonamide (NPN) ligands (Ph2P(NR)(NR'); a, R = R' = p-Tol; b, R = p-Tol, R' = Me; c, R = R' = Me) were synthesized and characterized by single-crystal X-ray diffraction. In the 16e̅ complexes 2, the rhodium (Rh) atom is efficiently stabilized by π-donation of unshared N electrons, thus hampering coordination of the external ligands and rendering the 18e̅ complexes labile. Due to low coordination enthalpy, the cationic 18e̅ monocarbonyl and pyridine adducts 2a·L are stable only at low temperatures. At room temperature, 2·CO adducts readily give stable carbonyl-carbamoyl complexes [(η5-C5Me5)Rh(CO){(CO(NR')Ph2P(NR)}]+ (4) formed as a result of CO insertion into the Rh-N bond, thus showing high nucleophilicity of the N atoms in 18e̅ complexes. High basicity of the Na+NPN- precursors caused side deprotonation of the η5-C5Me5 ligand during the synthesis of 1 that yields unstable fulvene Rh(I) complexes [(η4-C5Me4CH2)Rh{Ph2P(NR)(NR')2}] (3a,b). Complex 3a undergoes a facile reaction with isoprene to yield an unusual [(η5:η1-C5Me4(CH2)C(Me)═CHCH2)Rh(NPN)] complex─the first example of intermolecular 1,4-metallacycloaddition of diene to the Rh-fulvene complex.
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Affiliation(s)
- Roman I Nekrasov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
| | - Tat'yana A Peganova
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
| | - Ivan V Fedyanin
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
| | - Evgenii I Gutsul
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
| | - Oleg A Filippov
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
| | - Natalia V Belkova
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
| | - Alexander M Kalsin
- A.N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, 28 Vavilov Street, 119334 Moscow, Russian Federation
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12
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Zhang ML, Zhang XL, Guo RL, Wang MY, Zhao BY, Yang JH, Jia Q, Wang YQ. Switchable, Reagent-Controlled C(sp 3)-H Selective Iodination and Acetoxylation of 8-Methylquinolines. J Org Chem 2022; 87:5730-5743. [PMID: 35471034 DOI: 10.1021/acs.joc.2c00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
An efficient Pd-catalyzed C(sp3)-H selective iodination of 8-methylquinolines is reported herein for the first time. Because of the versatility of organic iodides, the method offers a facile access to various C8-substituted quinolines. By slightly switching the reaction conditions, an efficient C(sp3)-H acetoxylation of 8-methylquinolines has also been enabled. Both approaches feature mild reaction conditions, good tolerance of functional groups, and a broad substrate scope.
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Affiliation(s)
- Ming-Lu Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Xing-Long Zhang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Rui-Li Guo
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Meng-Yue Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Bao-Yin Zhao
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Jin-Hui Yang
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, Yinchuan 750021, P. R. China
| | - Qiong Jia
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
| | - Yong-Qiang Wang
- Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education, School of Foreign Languages, College of Chemistry & Materials Science, Northwest University, Xi'an 710069, P. R. China
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13
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Hu J, Wang C, Yu M, Zhang S, Chen N, Du H. Palladium‐Catalyzed N3‐Directed C‐H Halogenation of N9‐Arylpurines and Azapurines. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101266] [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)
- Junbin Hu
- Beijing University of Chemical Technology College of chemistry CHINA
| | - Chenxing Wang
- Beijing University of Chemical Technology College of Chemistry CHINA
| | - Mingwu Yu
- Ludong University School of Chemical and Material Science CHINA
| | - Shaojuan Zhang
- Beijing University of Chemical Technology College of Chemistry CHINA
| | - Ning Chen
- Beijing University of Chemical Technolgy chemistry 15 North 3-rd east road, Beijing 100029 Beijing CHINA
| | - Hongguang Du
- Beijing university of chemical technology college of chemistry CHINA
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14
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Poeira DL, Negrão ACR, Faustino H, Coelho JAS, Gomes CSB, Gois PMP, Marques MMB. Hypervalent Iodine(III) Reagents with Transferable Primary Amines: Structure and Reactivity on the Electrophilic α-Amination of Stabilized Enolates. Org Lett 2022; 24:776-781. [PMID: 34978835 DOI: 10.1021/acs.orglett.1c04312] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
A new family of hypervalent iodine reagents containing transferable primary amine groups is described. Benziodoxolone-based reagents were synthesized on the gram-scale through operationally simple reactions in up to quantitative yields. These bench-stable solids were characterized by X-ray analysis and successfully employed in the α-amination of indanone-based β-ketoesters in up to 83% yield. Mechanistic studies indicate a substitution mechanism involving an electrophilic amine.
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Affiliation(s)
- Diogo L Poeira
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Ana Cláudia R Negrão
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Hélio Faustino
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - Jaime A S Coelho
- Centro de Química Estrutural, Faculty of Sciences, Universidade de Lisboa, 1749-016 Lisboa, Portugal
| | - Clara S B Gomes
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal.,Associate Laboratory i4HB - Institute for Health and Bioeconomy, UCIBIO - Applied Molecular Biosciences Unit, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
| | - Pedro M P Gois
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - M Manuel B Marques
- LAQV@REQUIMTE, Department of Chemistry, NOVA School of Science and Technology, Universidade Nova de Lisboa, 2829-516 Caparica, Portugal
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15
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Zhang H, Sun MC, Yang D, Li T, Song MP, Niu JL. Cobalt(II)-Catalyzed Activation of C(sp3)–H Bonds: Organic Oxidant Enabled Selective Functionalization. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05250] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- He Zhang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Meng-Chan Sun
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Dandan Yang
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Tong Li
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Mao-Ping Song
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
| | - Jun-Long Niu
- Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, P. R. China
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16
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John S, Bora D, Dhiman V, Tokala R, Samanthula G, Shankaraiah N. Ru(II)-Catalyzed Regioselective C-N Bond Formation on Benzothiazoles Employing Acyl Azide as an Amidating Agent. ACS OMEGA 2022; 7:1299-1310. [PMID: 35036791 PMCID: PMC8756580 DOI: 10.1021/acsomega.1c05910] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2021] [Accepted: 12/16/2021] [Indexed: 06/14/2023]
Abstract
A Ru(II)-catalyzed regioselective direct ortho-amidation of 2-aryl benzo[d]thiazoles employing acyl azides as a nitrogen source has been accomplished. This approach utilizes the efficiency of benzothiazole as a directing group and the role of acyl azide as an effective amidating agent toward C-N bond formation, thereby evading the general Curtius rearrangement. The protocol highlights significant functional group tolerance, single-step, and external oxidant-free conditions, with the release of only innocuous molecular nitrogen as the byproduct. The reaction mechanism and the intermediates associated with this selective Ru-catalyzed reaction have been investigated using ESI-MS. The protocol also aided in the construction of ortho-amidated β-carbolines, unveiling another class of fluorescent molecules.
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Affiliation(s)
- Stephy
Elza John
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Darshana Bora
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Vivek Dhiman
- Department
of Pharmaceutical Analysis, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Ramya Tokala
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Gananadhamu Samanthula
- Department
of Pharmaceutical Analysis, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
| | - Nagula Shankaraiah
- Department
of Medicinal Chemistry, National Institute
of Pharmaceutical Education and Research (NIPER), Hyderabad 500 037, India
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17
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Ma J, Zhou X, Chen JL, Shi J, Cheng HC, Guo P, Ji H. Directing Group Strategies in Rhodium-Catalyzed C-H Amination. Org Biomol Chem 2022; 20:7554-7576. [DOI: 10.1039/d2ob01157c] [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
Construction of a carbon-nitrogen bond is one of the most prevalent operations in nature and organic synthesis. The resulting amino compounds are privileged structural fragments in natural products, pharmaceutical drugs,...
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18
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Zhong X, Lin S, Xu H, Zhao X, Gao H, Wei Y, Zhou Z. Rh(III)-Catalysed Cascade C-H Imidization/Cyclization of N-Methoxybenzamides with Isoxazolones for the Assembly of Dihydroquinazolin-4(1H)-one Derivatives. Org Chem Front 2022. [DOI: 10.1039/d1qo01935j] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
By virtue of isoxazolones as viable imidizating reagents, an efficient Rh(III)-catalysed redox-neutral C-H imidization/cyclization cascade has been developed for the specific assembly of dihydroquinazolin-4(1H)-ones with the equipment of a quaternary...
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19
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20
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Liu B, Romine AM, Rubel CZ, Engle KM, Shi BF. Transition-Metal-Catalyzed, Coordination-Assisted Functionalization of Nonactivated C(sp 3)-H Bonds. Chem Rev 2021; 121:14957-15074. [PMID: 34714620 PMCID: PMC8968411 DOI: 10.1021/acs.chemrev.1c00519] [Citation(s) in RCA: 190] [Impact Index Per Article: 63.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Transition-metal-catalyzed, coordination-assisted C(sp3)-H functionalization has revolutionized synthetic planning over the past few decades as the use of these directing groups has allowed for increased access to many strategic positions in organic molecules. Nonetheless, several challenges remain preeminent, such as the requirement for high temperatures, the difficulty in removing or converting directing groups, and, although many metals provide some reactivity, the difficulty in employing metals outside of palladium. This review aims to give a comprehensive overview of coordination-assisted, transition-metal-catalyzed, direct functionalization of nonactivated C(sp3)-H bonds by covering the literature since 2004 in order to demonstrate the current state-of-the-art methods as well as the current limitations. For clarity, this review has been divided into nine sections by the transition metal catalyst with subdivisions by the type of bond formation. Synthetic applications and reaction mechanism are discussed where appropriate.
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Affiliation(s)
- Bin Liu
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry, Nanchang University, Nanchang, Jiangxi 330031, China
| | - Andrew M. Romine
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Camille Z. Rubel
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States
| | - Keary M. Engle
- Department of Chemistry, The Scripps Research Institute, 10550 N. Torrey Pines Rd., La Jolla, California 92037, United States.,Corresponding Author- (K. M. E.); (B.-F. S.)
| | - Bing-Feng Shi
- Center of Chemistry for Frontier Technologies, Department of Chemistry, Zhejiang University, 38 Zheda Rd., Hangzhou 310027, China.,College of Chemistry and Molecular Engineering, Zhengzhou University, Zhengzhou 450001, China.,School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China,Corresponding Author- (K. M. E.); (B.-F. S.)
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21
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Hu Y, Zheng S, Fan W, Yuan W. Copper‐Catalysed Electrophilic Amination of Aryl(alkenyl) Boronic Acids with Nitrogen‐Containing Hypervalent Iodine (III) Reagent. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100594] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Yuanyuan Hu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) 1037 Luoyu Road Wuhan 430074 People's Republic of China
| | - Songlin Zheng
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) 1037 Luoyu Road Wuhan 430074 People's Republic of China
| | - Wu Fan
- Key Laboratory of Tobacco Flavor Basic Research Zhengzhou Tobacco Research Institute of CNTC No. 2 Fengyang Street High-Tech Zone Zhengzhou 450001 People's Republic of China
| | - Weiming Yuan
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education Hubei Key Laboratory of Bioinorganic Chemistry and Materia Medica School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) 1037 Luoyu Road Wuhan 430074 People's Republic of China
- Guangdong Provincial Key Laboratory of Catalysis Southern University of Science and Technology Shenzhen 518055 People's Republic of China
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22
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Sunny S, Karvembu R. Recent Advances in Cobalt‐Catalyzed, Directing‐Group‐Assisted C−H Bond Amidation Reactions. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202100558] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sereena Sunny
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
| | - Ramasamy Karvembu
- Department of Chemistry National Institute of Technology Tiruchirappalli 620015 India
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23
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Yu F, Shen W, Sun Y, Liao Y, Jin S, Lu X, He R, Zhong L, Zhong G, Zhang J. Ruthenium-catalyzed C-H amination of aroylsilanes. Org Biomol Chem 2021; 19:6313-6321. [PMID: 34212972 DOI: 10.1039/d1ob00935d] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Acylsilane represents a valuable synthon in synthetic chemistry. We report on ruthenium(ii)-catalyzed ortho-C-H amination of aroylsilanes to provide facile access to synthetically useful imidobenzoylsilanes and tosyl-amidobenzoylsilanes. The protocols, with broad substrate scope and excellent functional group tolerance, are enabled with the weak chelation-assistance of acylsilane via C-H cyclometallation.
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Affiliation(s)
- Feifei Yu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Wenzhou Shen
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Yaling Sun
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Yilei Liao
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Shuqi Jin
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Xiunan Lu
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Rui He
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
| | - Liangjun Zhong
- Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
| | - Guofu Zhong
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China.
| | - Jian Zhang
- College of Materials, Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China. and Department of Stomatology, The Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou, 310015, China.
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24
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Xu J, Shen C, Qin X, Wu J, Zhang P, Liu X. Oxidative Sulfonylation of Hydrazones Enabled by Synergistic Copper/Silver Catalysis. J Org Chem 2021; 86:3706-3720. [PMID: 33480254 DOI: 10.1021/acs.joc.0c02249] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
A copper/silver-cocatalyzed protocol for oxidative sulfonylation of hydrazones is demonstrated. A wide range of β-ketosulfones and N-acylsulfonamides are directly synthesized in moderate to good yields. Our work provides a viable method for scalable preparation of β-ketosulfone derivatives that have found wide applications in the pharmaceutical industry.
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Affiliation(s)
- Jun Xu
- Department of Chemistry and the N.1 Institute for Health, National University of Singapore, Singapore 117543, Singapore.,Center for Functional Materials, National University of Singapore Suzhou Research Institute, Suzhou 215123, China
| | - Chao Shen
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Xian Qin
- Department of Chemistry and the N.1 Institute for Health, National University of Singapore, Singapore 117543, Singapore
| | - Jie Wu
- Department of Chemistry and the N.1 Institute for Health, National University of Singapore, Singapore 117543, Singapore.,Center for Functional Materials, National University of Singapore Suzhou Research Institute, Suzhou 215123, China
| | - Pengfei Zhang
- College of Material Chemistry and Chemical Engineering, Hangzhou Normal University, Hangzhou 311121, China
| | - Xiaogang Liu
- Department of Chemistry and the N.1 Institute for Health, National University of Singapore, Singapore 117543, Singapore.,Center for Functional Materials, National University of Singapore Suzhou Research Institute, Suzhou 215123, China
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25
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Peng HL, Li Y, Chen XY, Li LP, Ke Z, Ye BH. Visible-Light-Induced Amination of Quinoline at the C8 Position via a Postcoordinated Interligand-Coupling Strategy under Mild Conditions. Inorg Chem 2021; 60:908-918. [PMID: 33393292 DOI: 10.1021/acs.inorgchem.0c03026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The postcoordinated interligand-coupling strategy provides a useful and complementary protocol for synthesizing polydentate ligands. Herein, diastereoselective photoreactions of Λ-[Ir(pq)2(d-AA)] (Λ-d) and Λ-[Ir(pq)2(l-AA)] (Λ-l, where pq is 2-phenylquinoline and AA is an amino acid) are reported in the presence of O2 under mild conditions. Diastereomer Λ-d is dehydrogenatively oxidized into an imino acid complex, while diastereomer Λ-l mainly occurs via interligand C-N cross-dehydrogenative coupling between quinoline at the C8 position and AA ligands at room temperature, affording Λ-[Ir(pq)(l-pq-AA)]. Furthermore, the photoreaction of diastereomer Λ-l is temperature-dependent. Mechanistic experiments reveal the ligand-radical intermediates may be involved in the reaction. Density functional theory calculations were used to eluciate the origin of diastereoselectivity and temperature dependence. This will provide a new protocol for the amination of quinoline at the C8 position via the postcoordinated interligand C-N cross-coupling strategy under mild conditions.
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Affiliation(s)
- He-Long Peng
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Yinwu Li
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Xing-Yang Chen
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Li-Ping Li
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
| | - Bao-Hui Ye
- MOE Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry, Sun Yat-sen University, Guangzhou 510275, Guangdong, China
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26
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Huang Y, Pi C, Tang Z, Wu Y, Cui X. Cp*Co(III)-catalyzed C H amidation of azines with dioxazolones. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2020.08.046] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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27
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Makitalo CL, Yoshimura A, Rohde GT, Mironova IA, Yusubova RY, Yusubov MS, Zhdankin VV, Saito A. Imino‐λ
3
‐iodane and Catalytic Amount of I
2
‐Mediated Synthesis of
N
‐Allylsulfenamides via [2,3]‐Sigmatropic Rearrangement. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000961] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Cody L. Makitalo
- Department of Chemistry and Biochemistry University of Minnesota Duluth 55812 Minnesota USA
| | - Akira Yoshimura
- Department of Chemistry and Biochemistry University of Minnesota Duluth 55812 Minnesota USA
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | | | - Irina A. Mironova
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Rosa Y. Yusubova
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Mekhman S. Yusubov
- Research School of Chemistry and Applied Biomedical Sciences The Tomsk Polytechnic University 634050 Tomsk Russia
| | - Viktor V. Zhdankin
- Department of Chemistry and Biochemistry University of Minnesota Duluth 55812 Minnesota USA
| | - Akio Saito
- Division of Applied Chemistry Institute of Engineering Tokyo University of Agriculture and Technology 2‐23‐16 Naka‐cho 184‐8588 Koganei Tokyo Japan
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28
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Rhodium(III)-catalyzed chelation-assisted C-H imidation of arenes via umpolung of the imidating reagent. CHINESE JOURNAL OF CATALYSIS 2020. [DOI: 10.1016/s1872-2067(20)63587-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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29
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Sk MR, Bera SS, Basuli S, Metya A, Maji MS. Recent Progress in the C−N Bond Formation via High‐Valent Group 9 Cp*M(III)‐Catalyzed Directed sp
2
C−H Activation. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000367] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Md Raja Sk
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Sourav Sekhar Bera
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Suchand Basuli
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Abhisek Metya
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
| | - Modhu Sudan Maji
- Department of Chemistry Indian Institute of Technology Kharagpur Kharagpur 721302 West Bengal India
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30
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Dhiman AK, Thakur A, Kumar I, Kumar R, Sharma U. Co(III)-Catalyzed C-H Amidation of Nitrogen-Containing Heterocycles with Dioxazolones under Mild Conditions. J Org Chem 2020; 85:9244-9254. [PMID: 32558566 DOI: 10.1021/acs.joc.0c01237] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A cobalt(III)-catalyzed C-8 selective C-H amidation of quinoline N-oxide using dioxazolone as an amidating reagent under mild conditions is disclosed. The reaction proceeds efficiently with excellent functional group compatibility. The utility of the current method is demonstrated by gram scale synthesis of C-8 amide quinoline N-oxide and by converting this amidated product into functionalized quinolines. Furthermore, the developed catalytic method is also applicable for C-7 amidation of N-pyrimidylindolines and ortho-amidation of benzamides.
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Affiliation(s)
- Ankit Kumar Dhiman
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Ankita Thakur
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Inder Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Rakesh Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
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31
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Chen YK, Kang YS, Xu HJ, Zhang P, Zhao J, Li T, Sun WY, Lu Y. Rh(III)-Catalyzed C(sp 3)-H Acetoxylation of 8-Methylquinolines. Org Lett 2020; 22:5390-5395. [PMID: 32628855 DOI: 10.1021/acs.orglett.0c01715] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A mild and efficient Rh(III)-catalyzed aliphatic C-H acetoxylation directed by quinolines has been developed with widespread functional groups, including various halogens, which usually can provide precursors for further organic synthesis but easily results in selectivity issues in the Pd- and Ni-catalyzed reaction. Interestingly, Ac2O plays an essential role in promoting the transformation.
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Affiliation(s)
- You-Ke Chen
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Yan-Shang Kang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Hua-Jin Xu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Ping Zhang
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Jing Zhao
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Tiantian Li
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Wei-Yin Sun
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
| | - Yi Lu
- Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing National Laboratory of Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210023, China
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32
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Antoni PW, Mackenroth AV, Mulks FF, Rudolph M, Helmchen G, Hashmi ASK. Dibenzothiophenesulfilimines: A Convenient Approach to Intermolecular Rhodium-Catalysed C-H Amidation. Chemistry 2020; 26:8235-8238. [PMID: 32428332 PMCID: PMC7383884 DOI: 10.1002/chem.202002371] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Indexed: 11/18/2022]
Abstract
A sulfilimine‐based Group 9 transition‐metal‐catalysed C−H amidation procedure is reported. Dibenzothiophene‐based sulfilimines were shown to constitute a class of novel amidation reagents which enable the transfer of a wide range of N‐sulfonyl and N‐acyl moieties. It was demonstrated that sulfilimines, which are easily accessible from cheap reagents, are safe‐to‐handle and represent broadly applicable amidation reagents. The dibenzothiophene can be recycled after use. The C−H amidation was shown to proceed with high selectivity and gave the mono‐amidated products, mostly in good to excellent yields.
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Affiliation(s)
- Patrick W Antoni
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Alexandra V Mackenroth
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Florian F Mulks
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Günter Helmchen
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - A Stephen K Hashmi
- Organisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia
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34
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Shan B, Kang B, Song M, Wang R, Chen G, Li C, Zhao H. Rhodium(III)‐Catalyzed Oxidative C(sp
3
)−H Alkenylation of 8‐Methylquinolines with Maleimides Under Aerobic Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000283] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Baode Shan
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
| | - Baotao Kang
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
| | - Mingyue Song
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
| | - Rui Wang
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
| | - Guozhu Chen
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
| | - Cuncheng Li
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
| | - Huaiqing Zhao
- School of Chemistry and Chemical EngineeringUniversity of Jinan Jinan Shandong 250022 People's Republic of China
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of MatterChinese Academy of Sciences Fuzhou 350002 People's Republic of China
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35
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Kumar R, Parmar D, Gupta SS, Chandra D, Dhiman AK, Sharma U. Cp*Rh
III
‐Catalyzed Sterically Controlled C(sp
3
)−H Selective Mono‐ and Diarylation of 8‐Methylquinolines with Organoborons**. Chemistry 2020; 26:4396-4402. [DOI: 10.1002/chem.201905591] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/14/2020] [Indexed: 02/06/2023]
Affiliation(s)
- Rakesh Kumar
- Natural Product Chemistry and Process Development Division and AcSIR CSIR-IHBT 176061 Palampur India
| | - Diksha Parmar
- Natural Product Chemistry and Process Development Division and AcSIR CSIR-IHBT 176061 Palampur India
| | - Shiv Shankar Gupta
- Natural Product Chemistry and Process Development Division and AcSIR CSIR-IHBT 176061 Palampur India
| | - Devesh Chandra
- Natural Product Chemistry and Process Development Division and AcSIR CSIR-IHBT 176061 Palampur India
| | - Ankit Kumar Dhiman
- Natural Product Chemistry and Process Development Division and AcSIR CSIR-IHBT 176061 Palampur India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division and AcSIR CSIR-IHBT 176061 Palampur India
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36
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Ghosh P, Samanta S, Hajra A. Rhodium(iii)-catalyzed ortho-C-H amidation of 2-arylindazoles with a dioxazolone as an amidating reagent. Org Biomol Chem 2020; 18:1728-1732. [PMID: 32009136 DOI: 10.1039/c9ob02756d] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A simple and efficient method for the directed amidation of a wide range of 2-arylindazoles has been established for the first time through a rhodium-catalyzed C-H activation reaction with alkyl, aryl and heteroaryl dioxazolones. A series of N-(2-(2H-indazol-2-yl)phenyl)acetamide derivatives were synthesized in excellent yields. A mechanistic study was conducted to describe C-H bond cleavage which is likely to be involved in the rate determining step.
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Affiliation(s)
- Payel Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan, 731235, West Bengal, India.
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37
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Sharma S, Kumar S, Sharma A. Palladium‐Catalyzed Regioselective C−H Arylation of Quinoline‐
N
‐Oxides at C‐8 Position using Diaryliodonium Salts. ASIAN J ORG CHEM 2020. [DOI: 10.1002/ajoc.202000028] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shivani Sharma
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247667 India
| | - Sehdev Kumar
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247667 India
| | - Anuj Sharma
- Department of ChemistryIndian Institute of Technology Roorkee Roorkee 247667 India
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38
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Lan T, Qin H, Chen W, Liu W, Chen C. Synthesis and reactivity of carbazole-containing hypervalent iodine(III) reagents. CHINESE CHEM LETT 2020. [DOI: 10.1016/j.cclet.2019.07.031] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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39
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Kaur M, Van Humbeck JF. Recent trends in catalytic sp 3 C-H functionalization of heterocycles. Org Biomol Chem 2020; 18:606-617. [PMID: 31912069 DOI: 10.1039/c9ob01559k] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Heterocycles are a ubiquitous substructure in organic small molecules designed for use in materials and medicines. Recent work in catalysis has focused on enabling access to new heterocycle structures by sp3 C-H functionalization on alkyl side-chain substituents-especially at the heterobenzylic position-with more than two hundred manuscripts published just within the last ten years. Rather than describing in detail each of these reports, in this mini-review we attempt to highlight gaps in existing techniques. A semi-quantitative overview of ongoing work strongly suggests that several specific heterocycle types and bond formations outside of C-C, C-N, and C-O have been almost completely overlooked.
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Affiliation(s)
- Milanpreet Kaur
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
| | - Jeffrey F Van Humbeck
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta, Canada T2N 1N4.
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40
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Yu Y, Luo G, Yang J, Luo Y. Theoretical studies on the N–X (X = Cl, O) bond activation mechanism in catalytic C–H amination. Catal Sci Technol 2020. [DOI: 10.1039/c9cy02555c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
A favorable SN2-type N–Cl bond cleavage mechanism are proposed for Rh-catalysed C–H amination, which also works for N–O bond cleavage in Rh, Ru, and Pd analogous systems. These results could provide new understanding of C–H amination.
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Affiliation(s)
- Yang Yu
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Gen Luo
- Institutes of Physical Science and Information Technology
- Anhui University
- Hefei 230601
- China
| | - Jimin Yang
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
| | - Yi Luo
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- China
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41
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Yang S, Li H, Li P, Yang J, Wang L. Room temperature iron(ii)-catalyzed radical cyclization of unsaturated oximes with hypervalent iodine reagents. Org Biomol Chem 2020; 18:715-724. [DOI: 10.1039/c9ob02424g] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
An iron(ii)-catalyzed radical cyclization of oximes with hypervalent iodine reagents was developed, which enabled the construction of the isoxazoline backbone.
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Affiliation(s)
- Shichao Yang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Hongji Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Pinhua Li
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Jingya Yang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
| | - Lei Wang
- Department of Chemistry
- Huaibei Normal University
- Huaibei
- P.R. China
- State Key Laboratory of Organometallic Chemistry
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42
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Wang J, Zheng G, Li X. Rhodium( iii)-catalyzed diamidation of olefins via amidorhodation and further amidation. Chem Commun (Camb) 2020; 56:7809-7812. [DOI: 10.1039/d0cc00952k] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Rh(iii)/Co(iii)-catalyzed diamidation of amide-tethered olefins has been realized using dioxazolones and arylsulfonamides as different classes of amidating reagents.
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Affiliation(s)
- Jinlei Wang
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Guangfan Zheng
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
| | - Xingwei Li
- Key Laboratory of Applied Surface and Colloid Chemistry of MOE
- School of Chemistry and Chemical Engineering
- Shaanxi Normal University
- Xi’an 710062
- China
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43
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Kumar R, Sharma R, Kumar R, Sharma U. Cp*Rh(III)-Catalyzed Regioselective C(sp3)–H Methylation of 8-Methylquinolines with Organoborons. Org Lett 2019; 22:305-309. [DOI: 10.1021/acs.orglett.9b04331] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Rakesh Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Ritika Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Rohit Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
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44
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Kumar R, Kumar R, Parmar D, Gupta SS, Sharma U. Ru(II)/Rh(III)-Catalyzed C(sp3)–C(sp3) Bond Formation through C(sp3)–H Activation: Selective Linear Alkylation of 8-Methylquinolines and Ketoximes with Olefins. J Org Chem 2019; 85:1181-1192. [DOI: 10.1021/acs.joc.9b03257] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Rohit Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Rakesh Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Diksha Parmar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Shiv Shankar Gupta
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
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45
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Gryaznova TV, Kholin KV, Nikanshina EO, Khrizanforova VV, Strekalova SO, Fayzullin RR, Budnikova YH. Copper or Silver-Mediated Oxidative C(sp2)–H/N–H Cross-Coupling of Phthalimide and Heterocyclic Arenes: Access to N-Arylphthalimides. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00443] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Tatyana V. Gryaznova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Kirill V. Kholin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Elizaveta O. Nikanshina
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Vera V. Khrizanforova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Sofia O. Strekalova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Robert R. Fayzullin
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
| | - Yulia H. Budnikova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center, Russian Academy of Sciences, Arbuzov str. 8, Kazan 420088, Russian Federation
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46
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Dhiman AK, Gupta SS, Sharma R, Kumar R, Sharma U. Rh(III)-Catalyzed C(8)–H Activation of Quinoline N-Oxides: Regioselective C–Br and C–N Bond Formation. J Org Chem 2019; 84:12871-12880. [DOI: 10.1021/acs.joc.9b01538] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ankit Kumar Dhiman
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Shiv Shankar Gupta
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Ritika Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Rakesh Kumar
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
| | - Upendra Sharma
- Natural Product Chemistry and Process Development Division and AcSIR, CSIR-IHBT, Palampur 176061, India
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47
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Yu L, Yang C, Yu Y, Liu D, Hu L, Xiao Y, Song ZN, Tan Z. Ammonia as Ultimate Amino Source in Synthesis of Primary Amines via Nickel-Promoted C–H Bond Amination. Org Lett 2019; 21:5634-5638. [DOI: 10.1021/acs.orglett.9b01968] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lin Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Chan Yang
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Yongqi Yu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Da Liu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Liang Hu
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Yuanjiu Xiao
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Ze-Nan Song
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
| | - Ze Tan
- State Key Laboratory of Chemo/Biosensing and Chemometrics, College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, P. R. China
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48
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Samanta S, Mondal S, Ghosh D, Hajra A. Rhodium-Catalyzed Directed C–H Amidation of Imidazoheterocycles with Dioxazolones. Org Lett 2019; 21:4905-4909. [DOI: 10.1021/acs.orglett.9b01832] [Citation(s) in RCA: 50] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Sadhanendu Samanta
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Susmita Mondal
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Debashis Ghosh
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
| | - Alakananda Hajra
- Department of Chemistry, Visva-Bharati (A Central University), Santiniketan 731235, India
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49
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50
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Wang Y, Liu H, Li B, Wang B. Rhodium(III)‐catalyzed Intermolecular Unactivated Secondary C(
sp
3
)−H Bond Amidation Directed by 3,5‐dimethylpyrazole. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801592] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Yanwei Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Hongxin Liu
- State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Bin Li
- State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
| | - Baiquan Wang
- State Key Laboratory of Elemento-Organic Chemistry, College of ChemistryNankai University Tianjin 300071 People's Republic of China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin) Tianjin 300071 People's Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic ChemistryChinese Academy of Sciences Shanghai 200032 People's Republic of China
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