1
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Guan X, Li WJ, Shuai MS, Zhang M, Zhou CC, Fu XZ, Yang YY, Zhou M, He B, Zhao YL. Rh(III)-Catalyzed C7-Alkylation of Isatogens with Malonic Acid Diazoesters. J Org Chem 2024; 89:2984-2995. [PMID: 38334453 DOI: 10.1021/acs.joc.3c02405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
Rh(III)-catalyzed C7-alkylation of isatogens (indolin-3-one N-oxides) with malonic acid diazoesters has been developed. This strategy utilizes oxygen anion on the N-oxide group of isatogens as a directing group and successfully achieves the synthesis of a series of C7-alkylated isatogens with moderate to good yields (48-86% yields). Moreover, the N-oxides of isatogens can not only serve as the simple directing group for C7-H bond cleavage but also be deoxidized for easy removal.
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Affiliation(s)
- Xiang Guan
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Wen-Jie Li
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Ming-Shan Shuai
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Mao Zhang
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Chao-Chao Zhou
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Xiao-Zhong Fu
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yuan-Yong Yang
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Meng Zhou
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Bin He
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
| | - Yong-Long Zhao
- School of Pharmacy, and Engineering Research Center for the Development and Application of Ethnic Medicine and TCM (Ministry of Education), Guizhou Medical University, Guiyang 550004, P.R. China
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2
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Yadav SK, Jeganmohan M. Nickel-Catalyzed Tandem Cyclization of 1,6-Diynes with Indolines/Indoles through Dual C-H Bond Activation. J Org Chem 2023; 88:14454-14469. [PMID: 37791905 DOI: 10.1021/acs.joc.3c01463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
A nickel-catalyzed site-selective tandem cyclization of 1,6-diynes with substituted indolines or indoles through consecutive dual C-H bond activation is described. In the reaction, substituted fused indole and carbazole derivatives were observed in good to excellent yields, in which three consecutive C-C bonds formed in one pot. Later, in the presence of DDQ, the aromatization of the indoline derivative was converted to the indole derivative. A possible reaction mechanism involving dual C-H bond activation as a key step was proposed to account for the present reaction.
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Affiliation(s)
- Suresh Kumar Yadav
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu India
| | - Masilamani Jeganmohan
- Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, Tamil Nadu India
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3
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Chen S, Yang Y, Chen C, Wang C. Advances in Transition-Metal-Catalyzed Keto Carbonyl-Directed C—H Bond Functionalization Reactions. CHINESE J ORG CHEM 2023. [DOI: 10.6023/cjoc202205033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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4
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Suzuki H, Kawai Y, Takemura Y, Matsuda T. Rhodium-catalysed decarbonylative C(sp 2)-H alkylation of indolines with alkyl carboxylic acids and carboxylic anhydrides under redox-neutral conditions. Org Biomol Chem 2022; 20:2808-2812. [PMID: 35318479 DOI: 10.1039/d2ob00249c] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We developed a rhodium-catalysed decarbonylative C(sp2)-H alkylation method for indolines. This reaction facilitates the use of alkyl carboxylic acids and their anhydrides as a cheap, abundant and non-toxic alkyl source under redox-neutral conditions, featuring the introduction of a primary alkyl chain, which cannot be addressed by previous radical-mediated decarboxylative reaction. Through a mechanistic investigation, we revealed that an initially formed C-7 acylated indoline was transformed into the corresponding alkylated indoline via a decarbonylation process.
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Affiliation(s)
- Hirotsugu Suzuki
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Yuya Kawai
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Yosuke Takemura
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
| | - Takanori Matsuda
- Department of Applied Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
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5
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Hong D, Liu Y, Wu L, Lo VK, Toy PH, Law S, Huang J, Che C. Ru
V
‐Acylimido Intermediate in [Ru
IV
(Por)Cl
2
]‐Catalyzed C–N Bond Formation: Spectroscopic Characterization, Reactivity, and Catalytic Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100668] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Dan‐Yan Hong
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Yungen Liu
- Department of Chemistry Southern University of Science and Technology Shenzhen Guangdong 518055 China
| | - Liangliang Wu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Vanessa Kar‐Yan Lo
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Patrick H. Toy
- Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Siu‐Man Law
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Jie‐Sheng Huang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
| | - Chi‐Ming Che
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry The University of Hong Kong Pokfulam Road Hong Kong SAR China
- Department of Chemistry Southern University of Science and Technology Shenzhen Guangdong 518055 China
- HKU Shenzhen Institute of Research and Innovation Shenzhen 518053 China
- Laboratory for Synthetic Chemistry and Chemical Biology Limited Units 1503–1511, 15/F., Building 17W, Hong Kong Science and Technology Parks, New Territories Hong Kong SAR China
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6
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Hong DY, Liu Y, Wu L, Lo VKY, Toy PH, Law SM, Huang JS, Che CM. Ru V -Acylimido Intermediate in [Ru IV (Por)Cl 2 ]-Catalyzed C-N Bond Formation: Spectroscopic Characterization, Reactivity, and Catalytic Reactions. Angew Chem Int Ed Engl 2021; 60:18619-18629. [PMID: 33847064 DOI: 10.1002/anie.202100668] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/16/2021] [Indexed: 01/12/2023]
Abstract
Metal-catalyzed C-N bond formation reactions via acylnitrene transfer have recently attracted much attention, but direct detection of the proposed acylnitrenoid/acylimido M(NCOR) (R=aryl or alkyl) species in these reactions poses a formidable challenge. Herein, we report on Ru(NCOR) intermediates in C-N bond formation catalyzed by [RuIV (Por)Cl2 ]/N3 COR, a catalytic method applicable to aziridine/oxazoline formation from alkenes, amination of substituted indoles, α-amino ketone formation from silyl enol ethers, amination of C(sp3 )-H bonds, and functionalization of natural products and carbohydrate derivatives (up to 99 % yield). Experimental studies, including HR-ESI-MS and EPR measurements, coupled with DFT calculations, lend evidence for the formulation of the Ru(NCOR) acylnitrenoids as a RuV -imido species.
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Affiliation(s)
- Dan-Yan Hong
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Yungen Liu
- Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China
| | - Liangliang Wu
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Vanessa Kar-Yan Lo
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Patrick H Toy
- Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Siu-Man Law
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry and Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong SAR, China.,Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong, 518055, China.,HKU Shenzhen Institute of Research and Innovation, Shenzhen, 518053, China.,Laboratory for Synthetic Chemistry and Chemical Biology Limited, Units 1503-1511, 15/F., Building 17W, Hong Kong Science and Technology Parks, New Territories, Hong Kong SAR, China
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7
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Sheng Y, Zhou J, Gao Y, Duan B, Wang Y, Samorodov A, Liang G, Zhao Q, Song Z. Ruthenium(II)-Catalyzed Direct C7-Selective Amidation of Indoles with Dioxazolones at Room Temperature. J Org Chem 2021; 86:2827-2839. [DOI: 10.1021/acs.joc.0c02779] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Yaoguang Sheng
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Jianmin Zhou
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Yi Gao
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Bingbing Duan
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Yi Wang
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | | | - Guang Liang
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
| | - Qiuhua Zhao
- School of Chemistry and Molecular Engineering, East China Normal University, Shanghai 200241, China
| | - Zengqiang Song
- Chemical Biology Research Center at School of Pharmaceutical Sciences, Wenzhou Medical University, 1210 University Town, Wenzhou, Zhejiang 325035, China
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8
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Tang SB, Fu XP, Wu GR, Zhang LL, Deng KZ, Yang JY, Xia CC, Ji YF. Rhodium(III)-catalyzed C4-amidation of indole-oximes with dioxazolones via C-H activation. Org Biomol Chem 2020; 18:7922-7931. [PMID: 33001107 DOI: 10.1039/d0ob01655a] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A novel method for the Rh(iii)-catalyzed oxime-directed C-H amidation of indoles with dioxazolones has been developed. This strategy provides an exclusive site selectivity and the directing group can be easily removed. This transformation features a wide substrate scope, good functional group tolerance and excellent yields, and may serve as a significant tool to construct structurally diverse indole derivatives for the screening of potential pharmaceuticals in the future.
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Affiliation(s)
- Shi-Biao Tang
- Engineering Research Centre of Pharmaceutical Process Chemistry, Ministry of Education; School of Pharmacy, East China University of Science & Technology, 130 Meilong Road, Shanghai 200237, P. R. China.
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9
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Yu Y, Luo G, Yang J, Luo Y. Theoretical Mechanistic Studies of
Rh‐Catalyzed
C(sp
3
)—H Amination: A Comparison with Co Analogue and Metal Effects. CHINESE J CHEM 2020. [DOI: 10.1002/cjoc.202000153] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Yang Yu
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian Liaoning 116024 China
| | - Gen Luo
- Institutes of Physical Science and Information Technology, Anhui University, Hefei Anhui 230601 China
| | - Jimin Yang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian Liaoning 116024 China
| | - Yi Luo
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology Dalian Liaoning 116024 China
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10
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Yan Q, Huang H, Zhang H, Li MH, Yang D, Song MP, Niu JL. Synthesis of 7-Amido Indolines by Cp*Co(III)-Catalyzed C–H Bond Amidation. J Org Chem 2020; 85:11190-11199. [DOI: 10.1021/acs.joc.0c01259] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Qingkai Yan
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Hai Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology, School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China
| | - He Zhang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Meng-Hui Li
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Dandan Yang
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Mao-Ping Song
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Jun-Long Niu
- Green Catalysis Center and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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11
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Ahmad A, Dutta HS, Kumar M, Khan AA, Raziullah, Koley D. Pd-Catalyzed C-H Halogenation of Indolines and Tetrahydroquinolines with Removable Directing Group. Org Lett 2020; 22:5870-5875. [PMID: 32657591 DOI: 10.1021/acs.orglett.0c01963] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Pd-catalyzed directing-group-assisted regioselective halogenations to C7 of indolines and C8 of tetrahydroquinolines were achieved in good to excellent yields. The practicality and utility of the developed method have been illustrated by various functional group transformations such as arylation, alkenylation, cyanation, and silylation utilizing the installed synthetic handle. The concise synthesis of primaquine, an antimalarial drug, and formal syntheses of two bioactive natural products, hippadine and pratosine, have also been demonstrated.
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Affiliation(s)
- Ashfaq Ahmad
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | | | - Mohit Kumar
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Afsar Ali Khan
- Academy of Scientific and Innovative Research, New Delhi 110001, India
| | - Raziullah
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Dipankar Koley
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, India.,Academy of Scientific and Innovative Research, New Delhi 110001, India
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12
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Gramage-Doria R. Steering Site-Selectivity in Transition Metal-Catalyzed C-H Bond Functionalization: the Challenge of Benzanilides. Chemistry 2020; 26:9688-9709. [PMID: 32237177 DOI: 10.1002/chem.202000672] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/18/2020] [Indexed: 12/31/2022]
Abstract
Selective C-H bond functionalization catalyzed by metal complexes have completely revolutionized the way in which chemical synthesis is conceived nowadays. Typically, the reactivity of a transition metal catalyst is the key to control the site-, regio- and/or stereo-selectivity of a C-H bond functionalization. Of particular interests are molecules that contain multiple C-H bonds prone to undergo C-H bond activations with very similar bond dissociation energies at different positions. This is the case of benzanilides, relevant chemical motifs that are found in many useful fine chemicals, in which two C-H sites are present in chemically different aromatic fragments. In the last years, it has been found that depending on the metal catalyst and the reaction conditions, the amide motif might behave as a directing group towards the metal-catalyzed C-H bond activation in the benzamide site or in the anilide site. The impact and the consequences of such subtle control of site-selectivity are herein reviewed with important applications in carbon-carbon and carbon-heteroatom bond forming processes. The mechanisms unraveling these unique transformations are discussed in order to provide a better understanding for future developments in the field of site-selective C-H bond functionalization with transition metal catalysts.
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13
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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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14
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Hynes T, Hall DS, Speed AW, Masuda JD, Dahn J. A one-pot method for the synthesis of 3-(hetero-)aryl-1,4,2-dioxazol-5-ones. CAN J CHEM 2020. [DOI: 10.1139/cjc-2019-0419] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
3-R-1,4,2-dioxazol-5-ones are a class of compounds that are increasingly finding diverse uses, including as regioselective amidation reagents and as electrolyte additives that enable long cycling lifetimes in rechargeable lithium-ion batteries. Conventional methods for their synthesis tend to be slow and time-consuming, requiring isolation and thorough drying of a hydroxamic acid intermediate, followed by a separate cyclization step with N,N′-carbonyldiimidazole. Furthermore, the cyclization is typically performed in dichloromethane, an environmentally harmful solvent. This work demonstrates a new one-pot method for the synthesis of these compounds that eliminates the need for isolation of the intermediate or the use of halogenated solvents. The reaction is mainly performed using environmentally benign ethyl acetate and a relatively small amount of N,N-dimethylformamide. The reaction proceeds readily at room temperature and requires no expensive metal catalysts to function.
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Affiliation(s)
- Toren Hynes
- Department of Chemistry, Dalhousie University, Halifax, NS, Canada
| | - David S. Hall
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, Canada
| | | | - Jason D. Masuda
- Department of Chemistry, Saint Mary’s University, Halifax, NS, Canada
| | - J.R. Dahn
- Department of Chemistry, Dalhousie University, Halifax, NS, Canada
- Department of Physics and Atmospheric Science, Dalhousie University, Halifax, NS, Canada
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15
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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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16
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Kumar M, Raziullah, Khan AA, Ahmad A, Dutta HS, Kant R, Koley D. Cu(II)-Mediated Cross-Dehydrogenative Coupling of Indolines with Sulfonamides, Carboxamides, and Amines. J Org Chem 2019; 84:13624-13635. [PMID: 31566988 DOI: 10.1021/acs.joc.9b01893] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A facile and efficient Cu-mediated protocol for the cross-dehydrogenative coupling of indoline with sulfonamides, carboxamides, and anilines is reported. The reaction takes place through Cu-mediated C7-H activation via a 6-membered metallacycle to afford the amide and amine derivatives in good yields with a wide range of functional group tolerance. The importance of the protocol has been demonstrated by synthesizing the antiproliferative agent, ER-67836.
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Affiliation(s)
- Mohit Kumar
- Academy of Scientific and Innovative Research , New Delhi 110001 , India
| | | | - Afsar Ali Khan
- Academy of Scientific and Innovative Research , New Delhi 110001 , India
| | | | | | | | - Dipankar Koley
- Academy of Scientific and Innovative Research , New Delhi 110001 , India
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17
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Raziullah, Kumar M, Kant R, Koley D. Cu‐Catalyzed Directed C7−H Imidation of Indolines via Cross‐Dehydrogenative Coupling. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900166] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Raziullah
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
| | - Mohit Kumar
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
| | - Ruchir Kant
- Molecular and Structural Biology DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
| | - Dipankar Koley
- Medicinal and Process Chemistry DivisionCSIR-Central Drug Research Institute Lucknow 226031 India
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18
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Rhodium(III)-catalyzed direct C-7 sulfonamidation and amination of indolines with arylsulfonamides and trifluoroacetamide. Tetrahedron Lett 2019. [DOI: 10.1016/j.tetlet.2019.03.069] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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De PB, Banerjee S, Pradhan S, Punniyamurthy T. Ru(ii)-Catalyzed C7-acyloxylation of indolines with carboxylic acids. Org Biomol Chem 2019; 16:5889-5898. [PMID: 30070289 DOI: 10.1039/c8ob01603h] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ruthenium(ii)-catalyzed site-selective C7-acyloxylation of indolines with carboxylic acids is presented. The substrate scope and functional group tolerance are important practical features. The kinetic isotope studies suggest that C-H bond activation may be the rate-determining step.
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Affiliation(s)
- Pinaki Bhusan De
- Department of Chemistry, Indian Institute of Technology Guwahati, Guwahati 781039, India.
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20
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Wang Q, Zhi C, Lu P, Liu S, Zhu X, Hao X, Song M. Rhodium(III)‐Catalyzed Direct C7 Allylation of Indolines via Sequential C−H and C−C Activation. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801496] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Qiuling Wang
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
| | - Chang‐Lei Zhi
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
| | - Pei‐Pei Lu
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
| | - Shuang Liu
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
| | - Xinju Zhu
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
| | - Xin‐Qi Hao
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
| | - Mao‐Ping Song
- College of Chemistry and Molecular EngineeringZhengzhou University No. 100 of Science Road, Zhengzhou Henan 450001 People's Republic of China
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21
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Banerjee S, De PB, Pradhan S, Shah TA, Punniyamurthy T. RuII
-Catalysed Regioselective C-N
Bond Formation of Indolines and Carbazole with Acyl Azides. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801829] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Sonbidya Banerjee
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
| | - Pinaki Bhusan De
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
| | - Sourav Pradhan
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
| | - Tariq A. Shah
- Department of Chemistry; Indian Institute of Technology Guwahati; 781039 Guwahati India
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22
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Shah TA, De PB, Pradhan S, Punniyamurthy T. Transition-metal-catalyzed site-selective C7-functionalization of indoles: advancement and future prospects. Chem Commun (Camb) 2019; 55:572-587. [DOI: 10.1039/c8cc04116d] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The advancement and future prospects of transition-metal-catalyzed auxiliary assisted regioselective C7-functionalization of indoles/indolines are covered in this article.
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Affiliation(s)
- Tariq A. Shah
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | - Pinaki Bhusan De
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
| | - Sourav Pradhan
- Department of Chemistry
- Indian Institute of Technology Guwahati
- Guwahati 781039
- India
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23
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Yu Y, Luo G, Yang J, Luo Y. Cobalt-catalysed unactivated C(sp 3)–H amination: two-state reactivity and multi-reference electronic character. Catal Sci Technol 2019. [DOI: 10.1039/c9cy00239a] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
A remarkable two-state reactivity scenario and an unusual multi-reference character have been computationally found in Co-catalysed C(sp3)–H amination. In addition, the investigation on the additive, aminating reagent, metal center, and auxiliary ligand provides implications for development of new catalytic C–H functionalization systems.
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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
- State Key Laboratory of Fine Chemicals
- School of Chemical Engineering
- Dalian University of Technology
- Dalian 116024
- 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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24
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Gou XY, Li Y, Wang XG, Liu HC, Zhang BS, Zhao JH, Zhou ZZ, Liang YM. Ruthenium-catalyzed ortho-selective CAr–H amination of heteroaryl arenes with di-tert-butyldiaziridinone. Chem Commun (Camb) 2019; 55:5487-5490. [DOI: 10.1039/c9cc02499a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Application of an oxidative amination reagent (di-tert-butyldiaziridinone) to the Ru3(CO)12-catalyzed ortho-selective CAr–H amination reaction is described.
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Affiliation(s)
- Xue-Ya Gou
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yuke Li
- Department of Chemistry and Centre for Scientific Modeling and Computation
- Chinese University of Hong Kong
- Shatin
- China
| | - Xin-Gang Wang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Hong-Chao Liu
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Bo-Sheng Zhang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Jia-Hui Zhao
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Zhao-Zhao Zhou
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yong-Min Liang
- State Key Laboratory of Applied Organic Chemistry
- Lanzhou University
- Lanzhou 730000
- P. R. China
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25
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Shimbayashi T, Sasakura K, Eguchi A, Okamoto K, Ohe K. Recent Progress on Cyclic Nitrenoid Precursors in Transition-Metal-Catalyzed Nitrene-Transfer Reactions. Chemistry 2018; 25:3156-3180. [PMID: 30183111 DOI: 10.1002/chem.201803716] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2018] [Indexed: 12/20/2022]
Abstract
Nitrene-transfer reactions are powerful synthetic tools for the direct incorporation of nitrogen atoms into organic molecules. The discovery of novel nitrene-transfer reactions has been dominantly supported not only by improvements in transition-metal catalysts but also by the employment of novel precursors of nitrenoids. Since pioneering work involving the use of organic azides and iminoiodinanes as practical synthetic tools for nitrogen-containing compounds was reported, a new approach using various N-heterocycles containing strain energy or a weak bond has emerged. In this review, we briefly summarize the history of nitrene-transfer chemistry from the viewpoint of its precursors. In particular, the use of N-heterocycles such as 2H-azirines, 1,4,2-dioxazol-5-ones, 1,2,4-oxadiazol-5-ones, isoxazol-5(4H)-ones, and isoxazoles is comprehensively described, showing the recent remarkable progress in this chemistry.
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Affiliation(s)
- Takuya Shimbayashi
- Graduate School of Human and Environmental Studies, Kyoto University, Sakyo-ku, Kyoto, 606-8501, Japan
| | - Kohei Sasakura
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Akira Eguchi
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuhiro Okamoto
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kouichi Ohe
- Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University, Nishikyo-ku, Kyoto, 615-8510, Japan
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26
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Xu L, Li T, Wang L, Cui X. Rh(III)-Catalyzed One-Pot Synthesis of Benzimidazoquinazolines via C-H Amidation-Cyclization of N-LG-2-phenylbenzoimidazoles. J Org Chem 2018; 84:560-567. [PMID: 30431274 DOI: 10.1021/acs.joc.8b02396] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
An efficient protocol to synthesize substituted benzo[4,5]imidazo[1,2- c]quinazolines starting from N-LG-2-phenylbenzoimidazole and dioxazolones catalyzed by Rh(III) or Ir(III) has been developed. Various substituted benzo[4,5]imidazo[1,2- c]quinazolines could be easily provided in up to 99% yield. A large range of substrates and functional groups are compatible for this transformation. This method features low catalyst loading, acid-free conditions, and low solvent consumption.
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Affiliation(s)
- Linhua Xu
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences , Huaqiao University , Xiamen 361021 , P.R. China
| | - Tingfang Li
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences , Huaqiao University , Xiamen 361021 , P.R. China
| | - Lianhui Wang
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences , Huaqiao University , Xiamen 361021 , P.R. China
| | - Xiuling Cui
- Engineering Research Center of Molecular Medicine, Ministry of Education, Key Laboratory of Fujian Molecular Medicine, Key Laboratory of Xiamen Marine and Gene Drugs, School of Biomedical Sciences , Huaqiao University , Xiamen 361021 , P.R. China
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27
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Xiao X, Jia G, Liu F, Ou G, Xie Y. RuHCl(CO)(PPh3)3-Catalyzed Direct Amidation of Arene C–H Bond with Azides. J Org Chem 2018; 83:13811-13820. [DOI: 10.1021/acs.joc.8b02123] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Xinsheng Xiao
- Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Guokai Jia
- Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Fang Liu
- Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Guangchuan Ou
- Key Laboratory of Comprehensive Utilization of Advantage Plants Resources in Hunan South, College of Chemistry and Bioengineering, Hunan University of Science and Engineering, Yongzhou 425100, China
| | - Ying Xie
- College of Chemistry and Environment Engineering, Sichuan University of Scinece & Engineering,180 Hui Xing Road, Zigong 643000, China
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28
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Guo W, Gómez JE, Cristòfol À, Xie J, Kleij AW. Catalytic Transformations of Functionalized Cyclic Organic Carbonates. Angew Chem Int Ed Engl 2018; 57:13735-13747. [DOI: 10.1002/anie.201805009] [Citation(s) in RCA: 188] [Impact Index Per Article: 31.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Wusheng Guo
- Center for Organic ChemistryFrontier Institute of Science and Technology (FIST)Xi'an Jiaotong University Xi'an 710045 China
| | - José Enrique Gómez
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Àlex Cristòfol
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Jianing Xie
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spain
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ)The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spain
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29
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Guo W, Gómez JE, Cristòfol À, Xie J, Kleij AW. Katalytische Umwandlung von funktionalisierten cyclischen organischen Carbonaten. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201805009] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Wusheng Guo
- Center for Organic ChemistryFrontier Institute of Science and Technology (FIST)Xi'an Jiaotong University Xi'an 710045 China
| | - José Enrique Gómez
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spanien
| | - Àlex Cristòfol
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spanien
| | - Jianing Xie
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Universitat Rovira i VirgiliDepartament de Química Analítica i Química Orgànica c/Marcel⋅lí Domingo, 1 43007 Tarragona Spanien
| | - Arjan W. Kleij
- Institute of Chemical Research of Catalonia (ICIQ)Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spanien
- Catalan Institute of Research and Advanced Studies (ICREA) Pg. Lluís Companys 23 08010 Barcelona Spanien
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30
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Sun JS, Liu M, Zhang J, Dong L. Cobalt(III)-Catalyzed C–H Amidation of 7-Azaindoles with Dioxazolones: Synthesis of 7-Azaindole Amidated Derivatives. J Org Chem 2018; 83:10555-10563. [PMID: 30019899 DOI: 10.1021/acs.joc.8b01354] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jun-Shu Sun
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Man Liu
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Jing Zhang
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
| | - Lin Dong
- Key Laboratory of Drug Targeting and Drug Delivery System of the Education Ministry, West China School of Pharmacy, Sichuan University, Chengdu 610041, China
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31
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Zhang L, Zheng X, Chen J, Cheng K, Jin L, Jiang X, Yu C. Ru(ii)-Catalyzed C6-selective C–H amidation of 2-pyridones. Org Chem Front 2018. [DOI: 10.1039/c8qo00795k] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
An efficient Ru-catalyzed C6 site-selective amidation of 2-pyridones has been accomplished with dioxazolone under mild conditions.
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Affiliation(s)
- Lei Zhang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xiangyun Zheng
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Jinkang Chen
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Kang Cheng
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Licheng Jin
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Xinpeng Jiang
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
| | - Chuanming Yu
- College of Pharmaceutical Sciences
- Zhejiang University of Technology
- Hangzhou 310014
- P. R. China
- Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals
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32
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Pan C, Wang Y, Wu C, Yu JT. Rhodium-catalyzed C7-alkylation of indolines with maleimides. Org Biomol Chem 2018; 16:693-697. [DOI: 10.1039/c7ob03039h] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
A rhodium(iii)-catalyzed direct cross-coupling reaction of indolines with maleimides via C–H bond activation was developed.
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Affiliation(s)
- Changduo Pan
- School of Chemical & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
| | - Yun Wang
- School of Chemical & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
| | - Chao Wu
- School of Chemical & Environmental Engineering
- Jiangsu University of Technology
- Changzhou 213001
- P. R. China
| | - Jin-Tao Yu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology
- Changzhou University
- Changzhou 213164
- P. R. China
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33
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Xiong H, Xu S, Sun S, Cheng J. Cp*Rh(iii)-catalyzed annulation of N-methoxybenzamide with 1,4,2-bisoxazol-5-one toward 2-aryl quinazolin-4(3H)-one derivatives. Org Chem Front 2018. [DOI: 10.1039/c8qo00800k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
A [Cp*RhIII]-catalyzed annulation of N-methoxybenzamide with 1,4,2-bisoxazol-5-one was developed, affording a series of 2-aryl quinazolin-4(3H)-one derivatives.
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Affiliation(s)
- Hao Xiong
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Shengbo Xu
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Song Sun
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
| | - Jiang Cheng
- School of Petrochemical Engineering
- Jiangsu Key Laboratory of Advanced Catalytic Materials & Technology
- and Institute for Natural and Synthetic Organic Chemistry
- Changzhou University
- Changzhou 213164
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34
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Hande AE, Ramesh VB, Prabhu KR. Rh(iii)-Catalyzed ortho-C-(sp2)–H amidation of ketones and aldehydes under synergistic ligand-accelerated catalysis. Chem Commun (Camb) 2018; 54:12113-12116. [DOI: 10.1039/c8cc07006g] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Rh(iii)-Catalyzed ortho-C–H amidation of ketones and aldehydes under cooperative metal organocatalysis has been utilized for synthesizing various ortho-amidocarbonyl analogs, and the reaction for the aldehyde proceeds >at ambient temperature.
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Affiliation(s)
| | - Vinay Bapu Ramesh
- Department of Organic Chemistry
- Indian Institute of Science
- Bangalore 560012
- India
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