1
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Li Z, Zhao J, Wang Y, Yu A. DFT Study of Functional Reduction of CO 2 with BH 3NMe 3: The Real Role of Organic Catalyst TBD. J Org Chem 2024; 89:6149-6158. [PMID: 38635972 DOI: 10.1021/acs.joc.4c00130] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/20/2024]
Abstract
The detailed mechanism of transition metal-free-catalyzed monomethylation of 2-naphthyl acetonitrile (1a) with CO2 in the presence of triazabicyclodecene (TBD) and BH3NMe3 was investigated using density functional theory. The C-methylation process proved to generate formaldehyde followed by the formation of the product via an alcohol rather than a methoxyborane intermediate. During the reaction, CO2 is activated to form the TBD-CO2 adduct and BH3NMe3 is changed into TBD-BH2 (IM2) in the presence of TBD. IM2 plays a real reducing role within the system due to the unique coordination capability of the B atom. In addition to enhancing the nucleophilicity of 1a through deprotonation by tBuOK, our research also indicates that the generated tBuOH not only assists in proton transfer to generate an alcohol intermediate but also promotes the regeneration of TBD.
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Affiliation(s)
- Zhaowei Li
- Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Jianing Zhao
- Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
| | - Yongjian Wang
- Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Sciences, Nankai University, Tianjin 300071, P. R. China
| | - Ao Yu
- Tianjin Key Laboratory of Molecular Recognition and Biosensing, College of Chemistry, Nankai University, Tianjin 300071, P. R. China
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2
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Nakaoka K, Guo C, Saiki Y, Furukawa S, Ema T. Synthesis of Enamines, Aldehydes, and Nitriles from CO 2: Scope of the One-Pot Strategy via Formamides. J Org Chem 2023; 88:15444-15451. [PMID: 36099541 DOI: 10.1021/acs.joc.2c01666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Tetrabutylammonium acetate (TBAA) and Cu(OAc)2 worked as a binary catalytic system for the solvent-free N-formylation of amines with CO2 and PhSiH3. This catalysis making C-H and C-N bonds with CO2 was coupled with the C-C bond-forming reactions to achieve the one-pot synthesis of enamines, aldehydes, and nitriles. The X-ray crystal structure of a Cu(OAc)2-TBAA complex was also revealed.
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Affiliation(s)
- Koichi Nakaoka
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Chao Guo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Yuta Saiki
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Shin Furukawa
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, Japan
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3
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Shi Q, Hu H, Du M, Sun Y, Li Y, Li Y. Boron-Assisted Cobalt-Catalyzed C-H Methylation Using CO 2 and H 2. Org Lett 2023; 25:7100-7104. [PMID: 37767977 DOI: 10.1021/acs.orglett.3c02406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/29/2023]
Abstract
C-H methylation of heteroarenes (e.g., indoles, pyrroles, etc.) is frequently applied in the synthesis of drug/biorelated compounds. We herein report the use of CO2/H2 as a methylation reagent for selective C-H methylation of indoles and pyrroles in the presence of cobalt/B(C6F5)3 cocatalysts. The Lewis acidic additive B(C6F5)3 is essential to achieving good reactivity for a broad scope of substituted indoles and pyrroles (20 examples, up to 92% yields). The C-H methylation is accomplished via the CO2 reduction/C-C bond formation/reduction sequence. Water is the only byproduct. This system based on the use of non-noble metal catalysts features an environmentally benign alternative for C-H methylation.
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Affiliation(s)
- Qin Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Haiyan Hu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Minxing Du
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Yajun Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
| | - Yudong Li
- Xinjiang Key Laboratory of Trace Chemicals Sensing, Xinjiang Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Urumqi 830011, P. R. China
| | - Yuehui Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, P. R. China
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4
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ZnxZr/HZSM-5 as efficient catalysts for alkylation of benzene with carbon dioxide. Front Chem Sci Eng 2023. [DOI: 10.1007/s11705-022-2215-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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5
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Hogg A, Wheatley M, Domingo-Legarda P, Carral-Menoyo A, Cottam N, Larrosa I. Ruthenium-Catalyzed Monoselective C-H Methylation and d 3-Methylation of Arenes. JACS AU 2022; 2:2529-2538. [PMID: 36465534 PMCID: PMC9709947 DOI: 10.1021/jacsau.2c00399] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 09/21/2022] [Accepted: 10/03/2022] [Indexed: 05/26/2023]
Abstract
Site-selective installation of C-Me bonds remains a powerful and sought-after tool to alter the chemical and pharmacological properties of a molecule. Direct C-H functionalization provides an attractive means of achieving this transformation. Such protocols, however, typically utilize harsh conditions and hazardous methylating agents with poor applicability toward late-stage functionalization. Furthermore, highly monoselective methylation protocols remain scarce. Herein, we report an efficient monoselective, directed ortho-methylation of arenes using N,N,N-trimethylanilinium salts as noncarcinogenic, bench-stable methylating agents. We extend this protocol to d 3-methylation in addition to the late-stage functionalization of pharmaceutically active compounds. Detailed kinetic studies indicate the rate-limiting in situ formation of MeI is integral to the observed reactivity.
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6
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Zhao Y, Guo X, Li S, Fan Y, Ji G, Jiang M, Yang Y, Jiang Y. Transient Stabilization Effect of CO
2
in the Electrochemical Hydrogenation of Azo Compounds and the Reductive Coupling of α‐Ketoesters. Angew Chem Int Ed Engl 2022; 61:e202213636. [DOI: 10.1002/anie.202213636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Indexed: 11/19/2022]
Affiliation(s)
- Yulei Zhao
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
| | - Xuqiang Guo
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
| | - Shuai Li
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
| | - Yuhang Fan
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
| | - Guo‐Cui Ji
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
| | - Mengmeng Jiang
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
| | - Yin Yang
- State Key Laboratory of Elemento-organic Chemistry College of Chemistry Nankai University Tianjin 300071 China
| | - Yuan‐Ye Jiang
- Shandong Key Laboratory of Life-Organic Analysis Key Laboratory of Pharmaceutical Intermediates and Analysis of Natural Medicine School of Chemistry and Chemical Engineering Qufu Normal University Ji Ning Shi, Qufu 273165 China
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7
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Natte K, Naik G, Sarki N, Goyal V, Narani A. Recent Trends in Upgrading of CO2 as a C1 Reactant in N‐ and C‐Methylation Reactions. ASIAN J ORG CHEM 2022. [DOI: 10.1002/ajoc.202200270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Kishore Natte
- Indian Institute of Technology Hyderabad Chemistry Kandi--- Sangareddy INDIA
| | - Ganesh Naik
- Indian Institute of Petroleum CSIR Chemistry INDIA
| | - Naina Sarki
- Indian Institute of Petroleum CSIR Chemistry INDIA
| | | | - Anand Narani
- Indian Institute of Petroleum CSIR Chemistry INDIA
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8
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Zhang M, Liu J, Yang B, Ma L, Wang N, Wei X. Facile Synthesis of a Novel Heterogeneous Rh/COF Catalyst and Its Application in Tandem Selective Transfer Hydrogenation and Monomethylation of Nitro Compounds with Methanol. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.1c04156] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Mingyue Zhang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
- University of Chinese Academy of Sciences, Beijing 100049, P. R. China
| | - Jianguo Liu
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, P. R. China
| | - Bo Yang
- Guangzhou Special Pressure Equipment Inspection and Research Institute, 9 Keyan Road, Guangzhou 510663, P. R. China
| | - Longlong Ma
- Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education, School of Energy and Environment, Southeast University, Nanjing 210096, P. R. China
| | - Nan Wang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
- School of Environmental Science and Engineering, Tianjin University, Tianjin 300350, P. R. China
| | - Xiuzhi Wei
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
- Department of Engineering Science, University of Science and Technology of China, Hefei 230026, P. R. China
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9
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Ting KW, Imbe T, Kamakura H, Maeno Z, Siddiki SMAH, Matsushita K, Shimizu KI, Toyao T. Catalytic Methylation of Benzene over Pt/MoOx/TiO2 and Zeolite Catalyst using CO2 and H2. CHEM LETT 2021. [DOI: 10.1246/cl.210664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kah Wei Ting
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Takuto Imbe
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Haruka Kamakura
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | - Zen Maeno
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
| | | | - Koichi Matsushita
- Central Technical Research Laboratory, ENEOS Corporation, Yokohama 231-0815, Japan
| | - Ken-ichi Shimizu
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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10
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Base metal catalyzed (De)hydrogenative formylation and methylation reactions utilizing carbon dioxide and methanol as C1 sources. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Liu J, Song Y, Wu X, Ma L. N-Dimethylation and N-Functionalization of Amines Using Ru Nanoparticle Catalysts and Formaldehyde or Functional Aldehydes as the Carbon Source. ACS OMEGA 2021; 6:22504-22513. [PMID: 34514223 PMCID: PMC8427653 DOI: 10.1021/acsomega.1c01961] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
N-methylated amines are essential bioactive compounds and have been widely used in the fine and bulk chemical industries, as well as in pharmaceuticals, agrochemicals, and dyes. Developing green, efficient, and low-cost catalysts for methylation of amines by using efficient and easily accessible methylating reagents is highly desired yet remains a significant challenge. Herein, we report the selective N-dimethylation of different functional amines with different functional aldehydes under easy-to-handle and industrially applicable conditions using carbon-supported Ru nanoparticles (Ru/C) as a heterogeneous catalyst. A broad spectrum of amines could be efficiently converted to their corresponding N,N-dimethyl amines with good compatibility of various functional groups. This method is widely applicable to N-dimethylation of primary amines including aromatic, aliphatic amines with formaldehyde, and synthesis of tertiary amines from primary, secondary amines with different functional aldehydes. The advantage of this newly described method includes operational simplicity, high turnover number, the ready availability of the catalyst, and good functional group compatibility. This Ru/C catalyzed N-dimethylation reaction possibly proceeds through a two-step N-methylation reaction process.
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Affiliation(s)
- Jianguo Liu
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
- Dalian
National Laboratory for Clean Energy, Chinese
Academy of Sciences, Dalian 116023, P. R. China
| | - Yanpei Song
- CAS
Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
| | - Xiang Wu
- CAS
Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
| | - Longlong Ma
- Key
Laboratory of Energy Thermal Conversion and Control of Ministry of
Education, School of Energy and Environment, Southeast University, Nanjing 210096, PR China
- CAS
Key Laboratory of Renewable Energy, Guangdong Provincial Key Laboratory
of New and Renewable Energy Research and Development, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, P. R. China
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12
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13
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Steverlynck J, Sitdikov R, Rueping M. The Deuterated "Magic Methyl" Group: A Guide to Site-Selective Trideuteromethyl Incorporation and Labeling by Using CD 3 Reagents. Chemistry 2021; 27:11751-11772. [PMID: 34076925 PMCID: PMC8457246 DOI: 10.1002/chem.202101179] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Indexed: 12/12/2022]
Abstract
In the field of medicinal chemistry, the precise installation of a trideuteromethyl group is gaining ever-increasing attention. Site-selective incorporation of the deuterated "magic methyl" group can provide profound pharmacological benefits and can be considered an important tool for drug optimization and development. This review provides a structured overview, according to trideuteromethylation reagent, of currently established methods for site-selective trideuteromethylation of carbon atoms. In addition to CD3 , the selective introduction of CD2 H and CDH2 groups is also considered. For all methods, the corresponding mechanism and scope are discussed whenever reported. As such, this review can be a starting point for synthetic chemists to further advance trideuteromethylation methodologies. At the same time, this review aims to be a guide for medicinal chemists, offering them the available C-CD3 formation strategies for the preparation of new or modified drugs.
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Affiliation(s)
- Joost Steverlynck
- Kaust Catalysis Center (KCC)King Abdullah University Science and Technology (KAUST)Thuwal23955-6900Saudi Arabia
| | - Ruzal Sitdikov
- Kaust Catalysis Center (KCC)King Abdullah University Science and Technology (KAUST)Thuwal23955-6900Saudi Arabia
| | - Magnus Rueping
- Kaust Catalysis Center (KCC)King Abdullah University Science and Technology (KAUST)Thuwal23955-6900Saudi Arabia
- Institute for Experimental Molecular ImagingRWTH Aachen UniversityForckenbeckstrasse 5552074Aachen
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14
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Ting KW, Kamakura H, Poly SS, Takao M, Siddiki SMAH, Maeno Z, Matsushita K, Shimizu KI, Toyao T. Catalytic Methylation of m-Xylene, Toluene, and Benzene Using CO2 and H2 over TiO2-Supported Re and Zeolite Catalysts: Machine-Learning-Assisted Catalyst Optimization. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05661] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Kah Wei Ting
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Haruka Kamakura
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Sharmin S. Poly
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Motoshi Takao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - S. M. A. Hakim Siddiki
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Zen Maeno
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
| | - Koichi Matsushita
- Central Technical Research Laboratory, ENEOS Corporation, Yokohama, Kanagawa 231-0815, Japan
| | - Ken-ichi Shimizu
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
| | - Takashi Toyao
- Institute for Catalysis, Hokkaido University, N-21, W-10, Sapporo, Hokkaido 001-0021, Japan
- Elements Strategy Initiative for Catalysts and Batteries, Kyoto University, Katsura, Kyoto 615-8520, Japan
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15
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Kong L, Han X, Chen H, Sun H, Lan Y, Li X. Rhodium(II)-Catalyzed Regioselective Remote C–H Alkylation of Protic Indoles. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01052] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lingheng Kong
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Xi Han
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Haohua Chen
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
| | - Huaming Sun
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
| | - Yu Lan
- Chongqing Key Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400030, China
- Green Catalysis Center, College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Xingwei Li
- School of Chemistry and Chemical Engineering, Shaanxi Normal University (SNNU), Xi’an 710062, China
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16
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Wu Z, Wei F, Wan B, Zhang Y. Pd-Catalyzed ipso, meta-Dimethylation of ortho-Substituted Iodoarenes via a Base-Controlled C-H Activation Cascade with Dimethyl Carbonate as the Methyl Source. J Am Chem Soc 2021; 143:4524-4530. [PMID: 33750128 DOI: 10.1021/jacs.0c13057] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
A methyl group can have a profound impact on the pharmacological properties of organic molecules. Hence, developing methylation methods and methylating reagents is essential in medicinal chemistry. We report a palladium-catalyzed dimethylation reaction of ortho-substituted iodoarenes using dimethyl carbonate as a methyl source. In the presence of K2CO3 as a base, iodoarenes are dimethylated at the ipso- and meta-positions of the iodo group, which represents a novel strategy for meta-C-H methylation. With KOAc as the base, subsequent oxidative C(sp3)-H/C(sp3)-H coupling occurs; in this case, the overall transformation achieves triple C-H activation to form three new C-C bonds. These reactions allow expedient access to 2,6-dimethylated phenols, 2,3-dihydrobenzofurans, and indanes, which are ubiquitous structural motifs and essential synthetic intermediates of biologically and pharmacologically active compounds.
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Affiliation(s)
- Zhuo Wu
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Feng Wei
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Bin Wan
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Yanghui Zhang
- School of Chemical Science and Engineering, Shanghai Key Laboratory of Chemical Assessment and Sustainability, Tongji University, 1239 Siping Road, Shanghai 200092, China
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17
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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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18
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Butera V, Detz H. Hydrogenation of CO 2 to methanol by the diphosphine–ruthenium( ii) cationic complex: a DFT investigation to shed light on the decisive role of carboxylic acids as promoters. Catal Sci Technol 2021. [DOI: 10.1039/d1cy00502b] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We present a quantum-chemical investigation of the CO2 hydrogenation to methanol catalyzed by the recently proposed diphosphine–ruthenium(ii) cationic complex, Ru2, in presence of carboxylic acids.
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Affiliation(s)
- Valeria Butera
- CEITEC – Central European Institute of Technology Central European Institute of Technology
- Brno University of Technology
- Brno 612 00
- Czech Republic
| | - Hermann Detz
- CEITEC – Central European Institute of Technology Central European Institute of Technology
- Brno University of Technology
- Brno 612 00
- Czech Republic
- Center for Micro- and Nanostructures & Institute of Solid State Electronics
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19
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Aynetdinova D, Callens MC, Hicks HB, Poh CYX, Shennan BDA, Boyd AM, Lim ZH, Leitch JA, Dixon DJ. Installing the “magic methyl” – C–H methylation in synthesis. Chem Soc Rev 2021; 50:5517-5563. [DOI: 10.1039/d0cs00973c] [Citation(s) in RCA: 71] [Impact Index Per Article: 23.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Following notable cases of remarkable potency increases in methylated analogues of lead compounds, this review documents the state-of-the-art in C–H methylation technology.
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Affiliation(s)
- Daniya Aynetdinova
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Mia C. Callens
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Harry B. Hicks
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Charmaine Y. X. Poh
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | | | - Alistair M. Boyd
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Zhong Hui Lim
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Jamie A. Leitch
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
| | - Darren J. Dixon
- Department of Chemistry
- University of Oxford
- Chemistry Research Laboratory
- Oxford
- UK
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20
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Takaishi K, Kosugi H, Nishimura R, Yamada Y, Ema T. C-Methylenation of anilines and indoles with CO 2 and hydrosilane using a pentanuclear zinc complex catalyst. Chem Commun (Camb) 2021; 57:8083-8086. [PMID: 34302161 DOI: 10.1039/d1cc03675k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The one-step C-methylenation of anilines and indoles with CO2 and phenylsilane was catalyzed by a pentanuclear ZnII complex to give diarylmethanes via geminal C-H and C-C bond formation. It is proposed that the zinc-hydride complex generated in situ is a catalytically active species and that bis(silyl)acetal is a key intermediate. When aniline was used as a substrate, both the C-methylenation and N-methylation proceeded.
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Affiliation(s)
- Kazuto Takaishi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan.
| | - Hiroyasu Kosugi
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan.
| | - Ritsuki Nishimura
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan.
| | - Yuya Yamada
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan.
| | - Tadashi Ema
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, Tsushima, Okayama 700-8530, Japan.
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21
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Kumar A, Gao C. Homogeneous (De)hydrogenative Catalysis for Circular Chemistry – Using Waste as a Resource. ChemCatChem 2020. [DOI: 10.1002/cctc.202001404] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Amit Kumar
- School of Chemistry University of St. Andrews North Haugh St. Andrews KY169ST UK
| | - Chang Gao
- School of Chemistry University of St. Andrews North Haugh St. Andrews KY169ST UK
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22
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Ghorbani-Choghamarani A, Taherinia Z. Fe 3O 4@GlcA@Cu-MOF: A Magnetic Metal-Organic Framework as a Recoverable Catalyst for the Hydration of Nitriles and Reduction of Isothiocyanates, Isocyanates, and Isocyanides. ACS COMBINATORIAL SCIENCE 2020; 22:902-909. [PMID: 33186013 DOI: 10.1021/acscombsci.0c00178] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
A novel magnetic metal-organic framework (Fe3O4@GlcA@Cu-MOF) has been prepared and characterized by spectroscopic, microscopic, and magnetic techniques. This magnetically separable catalyst exhibited high catalytic activity for nitrile hydration and the ability to reduce isothiocyanates, isocyanates, and isocyanides with excellent activity and selectivity without any additional reducing agent.
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Affiliation(s)
| | - Zahra Taherinia
- Department of Organic Chemistry, Faculty of Chemistry, Bu-Ali Sina University, Hamedan 6517838683, Iran
- Department of Chemistry, Ilam University, and P.O. Box 69315516, Ilam, Iran
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23
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Zhao Y, Guo X, Ding X, Zhou Z, Li M, Feng N, Gao B, Lu X, Liu Y, You J. Reductive CO2 Fixation via the Selective Formation of C–C Bonds: Bridging Enaminones and Synthesis of 1,4-Dihydropyridines. Org Lett 2020; 22:8326-8331. [DOI: 10.1021/acs.orglett.0c02963] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yulei Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Xuqiang Guo
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Xin Ding
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Zheng Zhou
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Man Li
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Nan Feng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Bowen Gao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Xu Lu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Jinmao You
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu, 273165, China
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, China
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24
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Song G, Li M, Yan P, Nawaz MA, Liu D. High Conversion to Aromatics via CO 2-FT over a CO-Reduced Cu-Fe 2O 3 Catalyst Integrated with HZSM-5. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02722] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Guiyao Song
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Minzhe Li
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Peikun Yan
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Muhammad Asif Nawaz
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Dianhua Liu
- State Key Laboratory of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
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25
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Grozavu A, Hepburn HB, Bailey EP, Lindsay-Scott PJ, Donohoe TJ. Rhodium catalysed C-3/5 methylation of pyridines using temporary dearomatisation. Chem Sci 2020; 11:8595-8599. [PMID: 34123119 PMCID: PMC8163342 DOI: 10.1039/d0sc02759f] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Pyridines are ubiquitous aromatic rings used in organic chemistry and are crucial elements of the drug discovery process. Herein we describe a new catalytic method that directly introduces a methyl group onto the aromatic ring; this new reaction is related to hydrogen borrowing, and is notable for its use of the feedstock chemicals methanol and formaldehyde as the key reagents. Conceptually, the C-3/5 methylation of pyridines was accomplished by exploiting the interface between aromatic and non-aromatic compounds, and this allows an oscillating reactivity pattern to emerge whereby normally electrophilic aromatic compounds become nucleophilic in the reaction after activation by reduction. Thus, a set of C-4 functionalised pyridines can be mono or doubly methylated at the C-3/5 positions. Electron poor pyridines can be activated by reduction and then methylated at C3/5 using formaldehyde.![]()
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Affiliation(s)
- Alexandru Grozavu
- Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Hamish B Hepburn
- Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | - Elliot P Bailey
- Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
| | | | - Timothy J Donohoe
- Chemistry Research Laboratory, University of Oxford Oxford OX1 3TA UK
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26
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Basak S, Alvarez-Montoya A, Winfrey L, Melen RL, Morrill LC, Pulis AP. B(C 6F 5) 3-Catalyzed Direct C3 Alkylation of Indoles and Oxindoles. ACS Catal 2020; 10:4835-4840. [PMID: 32596025 PMCID: PMC7311048 DOI: 10.1021/acscatal.0c01141] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/02/2020] [Indexed: 12/26/2022]
Abstract
![]()
The
direct C3 alkylation of indoles and oxindoles is a challenging
transformation, and only a few direct methods exist. Utilizing the
underexplored ability of triaryl boranes to mediate the heterolytic
cleavage of α-nitrogen C–H bonds in amines, we have developed
a catalytic approach for the direct C3 alkylation of a wide range
of indoles and oxindoles using amine-based alkylating agents. We also
employed this borane-catalyzed strategy in an alkylation-ring opening
cascade.
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Affiliation(s)
- Shyam Basak
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| | - Ana Alvarez-Montoya
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
| | - Laura Winfrey
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
| | - Rebecca L. Melen
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| | - Louis C. Morrill
- Cardiff Catalysis Institute, School of Chemistry, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, United Kingdom
| | - Alexander P. Pulis
- School of Chemistry, University of Leicester, Leicester, LE1 7RH, United Kingdom
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27
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Ting KW, Kamakura H, Poly SS, Toyao T, Hakim Siddiki SMA, Maeno Z, Matsushita K, Shimizu K. Catalytic Methylation of Aromatic Hydrocarbons using CO
2
/H
2
over Re/TiO
2
and H‐MOR Catalysts. ChemCatChem 2020. [DOI: 10.1002/cctc.202000036] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Kah Wei Ting
- Institute for Catalysis Hokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Haruka Kamakura
- Institute for Catalysis Hokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Sharmin S. Poly
- Institute for Catalysis Hokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Takashi Toyao
- Institute for Catalysis Hokkaido University N-21, W-10 Sapporo 001-0021 Japan
- Elements Strategy Initiative for Catalysis and Batteries Kyoto University Katsura Kyoto 615-8520 Japan
| | | | - Zen Maeno
- Institute for Catalysis Hokkaido University N-21, W-10 Sapporo 001-0021 Japan
| | - Koichi Matsushita
- Central Technical Research Lab JXTG Nippon Oil & Energy Corporation Yokohama Kanagawa 231-0815 Japan)
| | - Ken‐ichi Shimizu
- Institute for Catalysis Hokkaido University N-21, W-10 Sapporo 001-0021 Japan
- Elements Strategy Initiative for Catalysis and Batteries Kyoto University Katsura Kyoto 615-8520 Japan
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28
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Wang Z, Zhao Z, Li Y, Zhong Y, Zhang Q, Liu Q, Solan GA, Ma Y, Sun WH. Ruthenium-catalyzed hydrogenation of CO2 as a route to methyl esters for use as biofuels or fine chemicals. Chem Sci 2020. [DOI: 10.1039/d0sc02942d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
A novel robust diphosphine–ruthenium(ii) complex has been developed that can efficiently catalyze both the hydrogenation of CO2 to methanol and its in situ condensation with carboxylic acids to give methyl esters.
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Affiliation(s)
- Zheng Wang
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Ziwei Zhao
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Yong Li
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Yanxia Zhong
- Department of Nursing Shijiazhuang Medical College
- Shijiazhuang 050000
- China
| | - Qiuyue Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Qingbin Liu
- Hebei Key Laboratory of Organic Functional Molecules
- College of Chemistry and Material Science
- Hebei Normal University
- Shijiazhuang 050024
- China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Yanping Ma
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Science
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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29
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Zhao Y, Guo X, Du Y, Shi X, Yan S, Liu Y, You J. Synthesis of fused-tetrahydropyrimidines: one-pot methylenation–cyclization utilizing two molecules of CO2. Org Biomol Chem 2020; 18:6881-6888. [DOI: 10.1039/d0ob01504k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
A methylenation–cyclization reaction employing cyclic enaminones with primary aromatic amines and two molecules of CO2 to furnish fused-tetrahydropyrimidines has been developed.
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Affiliation(s)
- Yulei Zhao
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Xuqiang Guo
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Yulan Du
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Xinrui Shi
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Shina Yan
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering
- Guangzhou University
- Guangzhou
- China
| | - Jinmao You
- School of Chemistry and Chemical Engineering
- Qufu Normal University
- Qufu
- China
- Northwest Institute of Plateau Biology
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30
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Zhao Y, Liu X, Zheng L, Du Y, Shi X, Liu Y, Yan Z, You J, Jiang Y. One-Pot Methylenation–Cyclization Employing Two Molecules of CO2 with Arylamines and Enaminones. J Org Chem 2019; 85:912-923. [DOI: 10.1021/acs.joc.9b02858] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Yulei Zhao
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xu Liu
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Lijun Zheng
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yulan Du
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Xinrui Shi
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Yunlin Liu
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China
| | - Zhengquan Yan
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
| | - Jinmao You
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
- Northwest Institute of Plateau Biology, Chinese Academy of Science, Xining 810001, China
| | - Yuanye Jiang
- School of Chemistry and Chemical Engineering, Qufu Normal University, Qufu 273165, China
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31
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Gao Q, Shang Y, Song F, Ye J, Liu ZS, Li L, Cheng HG, Zhou Q. Modular Dual-Tasked C-H Methylation via the Catellani Strategy. J Am Chem Soc 2019; 141:15986-15993. [PMID: 31512477 DOI: 10.1021/jacs.9b07857] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We report a dual-tasked methylation that is based on cooperative palladium/norbornene catalysis. Readily available (hetero)aryl halides (39 iodides and 4 bromides) and inexpensive MeOTs or trimethylphosphate are utilized as the substrates and methylating reagent, respectively. Six types of "ipso" terminations can modularly couple with this "ortho" C-H methylation to constitute a versatile methylation toolbox for preparing diversified methylated arenes. This toolbox features inexpensive methyl sources, excellent functional-group tolerance, simple reaction procedures, and scalability. Importantly, it can be uneventfully extended to isotope-labeled methylation by switching to the corresponding reagents CD3OTs or 13CH3OTs. Moreover, this toolbox can be applied to late-stage modification of biorelevant substrates with complete stereoretention. We believe these salient and practical features of our dual-tasked methylation toolbox will be welcomed by academic and industrial researchers.
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32
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Onida K, Tlili A. Direct Synthesis of Carbamoyl Fluorides by CO
2
Deoxyfluorination. Angew Chem Int Ed Engl 2019; 58:12545-12548. [DOI: 10.1002/anie.201907354] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Indexed: 01/15/2023]
Affiliation(s)
- Killian Onida
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246)Univ. LyonUniversité Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246)Univ. LyonUniversité Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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33
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Onida K, Tlili A. Direct Synthesis of Carbamoyl Fluorides by CO
2
Deoxyfluorination. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201907354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Killian Onida
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246)Univ. LyonUniversité Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
| | - Anis Tlili
- Institute of Chemistry and Biochemistry (ICBMS-UMR CNRS 5246)Univ. LyonUniversité Lyon 1, CNRS, CPE-Lyon, INSA 43 Bd du 11 Novembre 1918 69622 Villeurbanne France
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34
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Mendes MCDS, Fazolo BR, de Souza JM, de Vasconcelos LG, de Sousa Junior PT, Dall'Oglio EL, Soares MA, Sampaio OM, Vieira LCC. Synthesis and evaluation of indole derivatives as photosynthesis and plant growth inhibitors. Photochem Photobiol Sci 2019; 18:1350-1358. [PMID: 30915429 DOI: 10.1039/c8pp00506k] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Indole derivatives were synthetized based on the Fischer indole methodology using different phenyl hydrazine hydrochlorides and either cyclohexanone or 2-butanone. The pre- and post-emergent herbicidal activities were evaluated against Ipomoea grandifolia. A carbazole, 6-chloro-2,3,4,9-tetrahydro-1H-carbazole (3b), decreased the PIabs parameter by 32% and increased the cross-section related parameters, indicating the inactivation of the reaction center on photosystem II. Compound 3b acts as a post-emergent herbicide prototype since dry biomass was reduced by 50%, corroborating the fluorescence results. Comparing instead with a germination experiment, 2,3,4,9-tetrahydro-1H-carbazole (3a) was found to be the most effective agent, inhibiting seed germination by 22% and decreasing root length by 50%. The tetrahydrocarbazoles showed better results than indole derivatives potentially due to the presence of methylene groups at structures, which increase the compounds' lipophilicity and may facilitate their access to the plant. In addition, electron withdrawing groups on the aromatic ring were found to correlate with increased herbicide activity. Further optimization of this series towards the development of herbicides is ongoing.
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35
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Zhang X, Wang S, Xi C. α-Methylation of 2-Arylacetonitrile by a Trimethylamine-Borane/CO2 System. J Org Chem 2019; 84:9744-9749. [DOI: 10.1021/acs.joc.9b01587] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Affiliation(s)
- Xiaowei Zhang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Sheng Wang
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Chanjuan Xi
- MOE Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology, Department of Chemistry, Tsinghua University, Beijing 100084, China
- State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
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36
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Han X, Yuan Y, Shi Z. Rhodium-Catalyzed Selective C–H Trideuteromethylation of Indole at C7 Position Using Acetic-d6 Anhydride. J Org Chem 2019; 84:12764-12772. [DOI: 10.1021/acs.joc.9b01114] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiaowei Han
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
| | - Zhuangzhi Shi
- College of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225002, China
- State Key Laboratory of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210093, China
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37
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Guzmán J, Bernal AM, García-Orduña P, Lahoz FJ, Oro LA, Fernández-Alvarez FJ. Selective reduction of formamides to O-silylated hemiaminals or methylamines with HSiMe 2Ph catalyzed by iridium complexes. Dalton Trans 2019; 48:4255-4262. [PMID: 30847452 DOI: 10.1039/c8dt05070h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of (4-methyl-pyridin-2-iloxy)ditertbutylsilane (NSitBu-H, 1) with [IrCl(coe)2]2 affords the iridium(iii) complex [Ir(H)(Cl)(κ2-NSitBu)(coe)] (2), which has been fully characterized including X-ray diffraction studies. The reaction of 2 with AgCF3SO3 leads to the formation of species [Ir(H)(CF3SO3)(κ2-NSitBu)(coe)] (3). The iridium complexes 2 and 3 are effective catalysts for the reduction of formamides with HSiMe2Ph. The selectivity of the reduction process depends on the catalyst. Thus, by using complex 2, with a chloride ancillary ligand, it has been possible to selectively obtain the corresponding O-silylated hemiaminal by reaction of formamides with one equivalent of HSiMe2Ph, while complex 3, with a triflate ligand instead of chloride, catalyzed the selective reduction of formamides to the corresponding methylamine.
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Affiliation(s)
- Jefferson Guzmán
- Departamento de Química Inorgánica - Instituto de Síntesis Química y Catálisis Homogénea (ISQCH). Universidad de Zaragoza - CSIC, Facultad de Ciencias 50009, Zaragoza, Spain.
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38
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Fu A, Liu Q, Jiang M, Xu G. Selective N‐Monomethylation of Amines and Nitroarenes using Methanol over an Encapsulated Iridium Nanocatalyst. ASIAN J ORG CHEM 2019. [DOI: 10.1002/ajoc.201900140] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Aixiao Fu
- CAS Key Laboratory of Bio-based MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
- University of Chinese Academy of Sciences Beijing 100049 P. R. China
| | - Qiang Liu
- CAS Key Laboratory of Bio-based MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
| | - Mingxiang Jiang
- School of Chemistry and Molecular EngineeringEast China University of Science and Technology Shanghai 200237 P. R. China
| | - Guoqiang Xu
- CAS Key Laboratory of Bio-based MaterialsQingdao Institute of Bioenergy and Bioprocess TechnologyChinese Academy of Sciences Qingdao 266101 P. R. China
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39
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Liu XF, Li XY, He LN. Transition Metal-Catalyzed Reductive Functionalization of CO2. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801833] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Xiao-Fang Liu
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Xiao-Ya Li
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
| | - Liang-Nian He
- State Key Laboratory and Institute of Elemento-Organic Chemistry; College of Chemistry; Nankai University; Tianjin 300071 China
- College of Chemistry; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin); Tianjin 300071 China
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40
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Zhang J, Wu M, Fan J, Xu Q, Xie M. Selective C–H acylation of indoles with α-oxocarboxylic acids at the C4 position by palladium catalysis. Chem Commun (Camb) 2019; 55:8102-8105. [DOI: 10.1039/c9cc03893k] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
The first catalytic C–H acylation of indoles at the C4 position with α-oxocarboxylic acids by palladium catalysis is described.
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Affiliation(s)
- Jitan Zhang
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Manyi Wu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Jian Fan
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Qiaoqiao Xu
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
| | - Meihua Xie
- Key Laboratory of Functional Molecular Solids (Ministry of Education)
- Anhui Key Laboratory of Molecular Based Materials, College of Chemistry and Materials Science
- Anhui Normal University
- Wuhu 241002
- China
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41
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Li PG, Yang Y, Zhu S, Li HX, Zou LH. Pd-Catalyzed Regioselective Direct Double C-H Arylation of 6,7-Benzindoles. European J Org Chem 2018. [DOI: 10.1002/ejoc.201801473] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ping-Gui Li
- State Key Laboratory of Coordination Chemistry and Chemical Engineering; Nanjing University; Xianlin Avenue 163 210093 Nanjing P. R. China
- School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Youqing Yang
- State Key Laboratory of Coordination Chemistry and Chemical Engineering; Nanjing University; Xianlin Avenue 163 210093 Nanjing P. R. China
| | - Shuai Zhu
- School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Hong-Xi Li
- School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
| | - Liang-Hua Zou
- School of Pharmaceutical Sciences; Jiangnan University; Lihu Avenue 1800 214122 Wuxi P.R. China
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42
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Dabral S, Schaub T. The Use of Carbon Dioxide (CO2) as a Building Block in Organic Synthesis from an Industrial Perspective. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801215] [Citation(s) in RCA: 181] [Impact Index Per Article: 30.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
- Saumya Dabral
- Catalysis Research Laboratory (CaRLa); Im Neuenheimer Feld 584 69120 Heidelberg Germany
| | - Thomas Schaub
- Catalysis Research Laboratory (CaRLa); Im Neuenheimer Feld 584 69120 Heidelberg Germany
- BASF SE; Synthesis and Homogeneous Catalysis; Carl-Bosch-Str. 38 67056 Ludwigshafen Germany
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43
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Lan X, Du C, Cao L, She T, Li Y, Bai G. Ultrafine Ag Nanoparticles Encapsulated by Covalent Triazine Framework Nanosheets for CO 2 Conversion. ACS APPLIED MATERIALS & INTERFACES 2018; 10:38953-38962. [PMID: 30338979 DOI: 10.1021/acsami.8b14743] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
This paper describes the fabrication of covalent triazine framework nanosheet-encapsulated Ag nanoparticles (Ag0@CTFN) via a simple combination of the ultrasonic exfoliation and solution infiltration method. The as-prepared Ag0@CTFN displays an order layered-sheet structure with abundant micropores and mesopores, whereas ultrafine Ag nanoparticles are confined and stabilized in their interlayers through the interaction between N sites of triazine units and Ag nanoparticles. Considering that the Ag0@CTFN possesses the merits of high nitrogen, low density, and abundant basic sites, it was thus believed to have enough abilities to adsorb and activate CO2 in the CO2 conversion and catalysis. Importantly, the Ag0@CTFN, as a heterogeneous catalyst, showed highly catalytic activity in the carboxylation of various alkynes with CO2 at ambient pressure and low temperature. This catalyst also exhibited good functional group tolerance and excellent stability without any significant loss of its activity after six recycles. This work not only achieves valuable and novel composite material but also provides the first application of covalent triazine framework nanosheets in chemical conversion of CO2, opening a new field in preparing recyclable heterogeneous catalysts to accelerate the utilization of CO2.
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Affiliation(s)
- Xingwang Lan
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science , Hebei University , Baoding , Hebei 071002 , P. R. China
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology Collaborative Innovation Center of Chemical Science and Engineering , Tianjin University , Weijin Road 92 , Tianjin 300072 , P. R. China
| | - Cheng Du
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science , Hebei University , Baoding , Hebei 071002 , P. R. China
| | - Lili Cao
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science , Hebei University , Baoding , Hebei 071002 , P. R. China
| | - Tiantian She
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science , Hebei University , Baoding , Hebei 071002 , P. R. China
| | - Yiming Li
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science , Hebei University , Baoding , Hebei 071002 , P. R. China
| | - Guoyi Bai
- Key Laboratory of Chemical Biology of Hebei Province, College of Chemistry and Environmental Science , Hebei University , Baoding , Hebei 071002 , P. R. China
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44
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Cai Z, Li S, Gao Y, Li G. Rhodium(II)-Catalyzed Aryl C−H Carboxylation of 2-Pyridylphenols with CO2. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800611] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Zhihua Cai
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Fuzhou, Fujian 350002 People's Republic of China
- University of Chinese Academy of Science; Beijing 100049 People's Republic of China
| | - Shangda Li
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Fuzhou, Fujian 350002 People's Republic of China
| | - Yuzhen Gao
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Fuzhou, Fujian 350002 People's Republic of China
| | - Gang Li
- State Key Laboratory of Structural Chemistry, Center for Excellence in Molecular Synthesis; Fujian Institute of Research on the Structure of Matter; Fuzhou, Fujian 350002 People's Republic of China
- University of Chinese Academy of Science; Beijing 100049 People's Republic of China
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45
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Effect of alkali metals on the performance of CoCu/TiO 2 catalysts for CO 2 hydrogenation to long-chain hydrocarbons. CHINESE JOURNAL OF CATALYSIS 2018. [DOI: 10.1016/s1872-2067(18)63086-4] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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46
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Huang R, Li S, Fu L, Li G. Rhodium(II)-Catalyzed C−H Bond Carboxylation of Heteroarenes with CO2. ASIAN J ORG CHEM 2018. [DOI: 10.1002/ajoc.201800287] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Raolin Huang
- College of Chemistry; Fuzhou University; Fuzhou, Fujian 350002 P.R. China
- Key Laboratory of Coal to Ethylene Glycol, and Its Related Technology; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 P.R. China
| | - Shangda Li
- Key Laboratory of Coal to Ethylene Glycol, and Its Related Technology; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 P.R. China
| | - Lei Fu
- Key Laboratory of Coal to Ethylene Glycol, and Its Related Technology; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 P.R. China
| | - Gang Li
- Key Laboratory of Coal to Ethylene Glycol, and Its Related Technology; Fujian Institute of Research on the Structure of Matter; Chinese Academy of Sciences; Fuzhou, Fujian 350002 P.R. China
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47
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Song L, Zhu L, Zhang Z, Ye JH, Yan SS, Han JL, Yin ZB, Lan Y, Yu DG. Catalytic Lactonization of Unactivated Aryl C-H Bonds with CO 2: Experimental and Computational Investigation. Org Lett 2018; 20:3776-3779. [PMID: 29906126 DOI: 10.1021/acs.orglett.8b01363] [Citation(s) in RCA: 47] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The first catalytic lactonization of unactivated aryl C-H bonds with CO2 to afford important phthalides is reported. Notably, this method features high selectivity, excellent functional group tolerance, smooth scalability, and facile product diversification. DFT calculations reveal that a novel insertion of two CO2 into the O-Pd bond of a palladacycle might be the key step, providing great potential and a different perspective for carbonylation with CO2.
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Affiliation(s)
- Lei Song
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Lei Zhu
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China
| | - Zhen Zhang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Jian-Heng Ye
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Si-Shun Yan
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Jie-Lian Han
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Zhu-Bao Yin
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China
| | - Yu Lan
- School of Chemistry and Chemical Engineering , Chongqing University , Chongqing 400030 , P. R. China
| | - Da-Gang Yu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry , Sichuan University , Chengdu 610064 , P. R. China.,State Key Laboratory of Elemento-Organic Chemistry , Nankai University , Tianjin 300071 , P. R. China
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48
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Fu L, Li S, Cai Z, Ding Y, Guo XQ, Zhou LP, Yuan D, Sun QF, Li G. Ligand-enabled site-selectivity in a versatile rhodium(ii)-catalysed aryl C–H carboxylation with CO2. Nat Catal 2018. [DOI: 10.1038/s41929-018-0080-y] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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49
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Zhu DY, Li WD, Yang C, Chen J, Xia JB. Transition-Metal-Free Reductive Deoxygenative Olefination with CO2. Org Lett 2018; 20:3282-3285. [DOI: 10.1021/acs.orglett.8b01155] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Dao-Yong Zhu
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Wen-Duo Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ce Yang
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Jie Chen
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
| | - Ji-Bao Xia
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Suzhou Research Institute of LICP, Lanzhou Institute of Chemical Physics (LICP), Chinese Academy of Sciences, Lanzhou 730000, China
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50
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Yang Y, Shi Z. Regioselective direct arylation of indoles on the benzenoid moiety. Chem Commun (Camb) 2018; 54:1676-1685. [DOI: 10.1039/c7cc08752g] [Citation(s) in RCA: 117] [Impact Index Per Article: 19.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Recent advances in transition metal-catalyzed selective C–H functionalization of indoles have garnered tremendous attention.
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Affiliation(s)
- Youqing Yang
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- Nanjing
- China
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