1
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Kirse TM, Maisuls I, Spierling L, Hepp A, Kösters J, Strassert CA. One Dianionic Luminophore with Three Coordination Modes Binding Four Different Metals: Toward Unexpectedly Phosphorescent Transition Metal Complexes. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2306801. [PMID: 38161218 PMCID: PMC10953592 DOI: 10.1002/advs.202306801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 12/08/2023] [Indexed: 01/03/2024]
Abstract
This work reports on a battery of coordination compounds featuring a versatile dianionic luminophore adopting three different coordination modes (mono, bi, and tridentate) while chelating Pd(II), Pt(II), Au(III), and Hg(II) centers. An in-depth structural characterization of the ligand precursor (H2 L) and six transition metal complexes ([HLPdCNtBu], [LPtCl], [LPtCNtBu], [LPtCNPhen], [HLHgCl], and [LAuCl]) is presented. The influence of the cations and coordination modes of the luminophore and co-ligands on the photophysical properties (including photoluminescence quantum yields (ΦL ), excited state lifetimes (τ), and average (non-)radiative rate constants) are evaluated at various temperatures in different phases. Five complexes show interesting photophysical properties at room temperature (RT) in solution. Embedment in frozen glassy matrices at 77 K significantly boosts their luminescence by suppressing radiationless deactivation paths. Thus, the Pt(II)-based compounds provide the highest efficiencies, with slight variations upon exchange of the ancillary ligand. In the case of [HLPdCNtBu], both ΦL and τ increase over 30-fold as compared to RT. Furthermore, the Hg(II) complex achieves, for the first time in its class, a ΦL exceeding 60% and millisecond-range lifetimes. This demonstrates that a judicious ligand design can pave the way toward versatile coordination compounds with tunable excited state properties.
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Affiliation(s)
- Thomas M. Kirse
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstr. 28/3048149MünsterGermany
- CiMiCSoN and CeNTechUniversität MünsterHeisenbergstr. 1148149MünsterGermany
| | - Iván Maisuls
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstr. 28/3048149MünsterGermany
- CiMiCSoN and CeNTechUniversität MünsterHeisenbergstr. 1148149MünsterGermany
| | - Leander Spierling
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstr. 28/3048149MünsterGermany
- CiMiCSoN and CeNTechUniversität MünsterHeisenbergstr. 1148149MünsterGermany
| | - Alexander Hepp
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstr. 28/3048149MünsterGermany
| | - Jutta Kösters
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstr. 28/3048149MünsterGermany
| | - Cristian A. Strassert
- Institut für Anorganische und Analytische ChemieUniversität MünsterCorrensstr. 28/3048149MünsterGermany
- CiMiCSoN and CeNTechUniversität MünsterHeisenbergstr. 1148149MünsterGermany
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2
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Silver(I)-Catalyzed C4-H Amination of 1-Naphthylamine Derivatives with Azodicarboxylates at Room Temperature. Catalysts 2022. [DOI: 10.3390/catal12091006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
A highly facile and efficient protocol for silver(I)-catalyzed C4–H amination of 1-naphthylamine derivatives with readily available azodicarboxylates utilizing picolinamide as a bidentate directing group is reported, providing an alternative strategy for the synthesis of 4-aminated 1-naphthylamine derivatives. The reaction proceeded smoothly in acetone at room temperature undergoing a self-redox process under the base and external oxidant-free conditions, affording the desired products with good to excellent yields.
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3
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Mao Y, Jiang J, Yuan D, Chen X, Wang Y, Hu L, Zhang Y. Overcoming peri- and ortho-selectivity in C-H methylation of 1-naphthaldehydes by a tunable transient ligand strategy. Chem Sci 2022; 13:2900-2908. [PMID: 35382469 PMCID: PMC8906006 DOI: 10.1039/d1sc05899a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 01/03/2022] [Indexed: 01/07/2023] Open
Abstract
Methyl groups widely exist in bioactive molecules, and site-specific methylation has become a valuable strategy for their structural functionalization. Aiming to introduce this smallest alkyl handle, a highly regioselective peri- and ortho-C-H methylation of 1-naphthaldehyde by using a transient ligand strategy has been developed. A series of methyl-substituted naphthalene frameworks have been prepared in moderate to excellent yields. Mechanistic studies demonstrate that peri-methylation is controlled by the higher electronic density of the peri-position of 1-naphthaldehyde as well as the formation of intermediary 5,6-fused bicyclic palladacycles, whereas experimental studies and theoretical calculations inferred that a 5-membered iridacycle at the ortho-position of 1-naphthaldehyde leads to energetically favorable ortho-methylation via an interconversion between the peri-iridacycle and ortho-iridacycle. Importantly, to demonstrate the synthetic utility of this method, we show that this strategy can serve as a platform for the synthesis of multi-substituted naphthalene-based bioactive molecules and natural products.
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Affiliation(s)
- Yujian Mao
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Jing Jiang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Dandan Yuan
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Xiuzhen Chen
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Yanan Wang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Lihong Hu
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
| | - Yinan Zhang
- Jiangsu Key Laboratory for Functional Substances of Chinese Medicine, School of Pharmacy, Nanjing University of Chinese Medicine Nanjing Jiangsu 210023 China
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4
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Pei M, Zu C, Liu Z, Yang F, Wu Y. Merging Photoredox Catalysis with Transition Metal Catalysis: Direct C4-H Sulfamidation of 1-Naphthylamine Derivatives. J Org Chem 2021; 86:11324-11332. [PMID: 34387490 DOI: 10.1021/acs.joc.1c00635] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A mild and efficient protocol for the copper(I)-catalyzed C4-H sulfamidation of 1-naphthylamine derivatives with diphenylsulfonimide (NHSI) was explored at room temperature, affording the desire produces in moderate to good yields. The control experiments indicated that this visible-light-promoted reaction might proceed via a single-electron-transfer process. In addition, preliminary DFT studies for the intermediates in the catalytic cycle were also explored, indicating that the C4 site in the naphthyl ring is the most likely electrophilic reactive site and providing some exact basis for the plausible mechanism.
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Affiliation(s)
- Mengxue Pei
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Conghui Zu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Zhen Liu
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, P.R. China
| | - Fan Yang
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
| | - Yangjie Wu
- College of Chemistry, Green Catalysis Center, Henan Key Laboratory of Chemical Biology and Organic Chemistry, Key Laboratory of Applied Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, P. R. China
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5
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Praveen C, Dupeux A, Michelet V. Catalytic Gold Chemistry: From Simple Salts to Complexes for Regioselective C-H Bond Functionalization. Chemistry 2021; 27:10495-10532. [PMID: 33904614 DOI: 10.1002/chem.202100785] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Indexed: 11/07/2022]
Abstract
Gold coordinated to neutral phosphines (R3 P), N-heterocyclic carbenes (NHCs) or anionic ligands is catalytically active in functionalizing various C-H bonds with high selectivity. The sterics/electronic nature of the studied C-H bond, oxidation state of gold and stereoelectronic capacity of the coordinated auxiliary ligand are some of the associated selectivity factors in gold-catalyzed C-H bond functionalization reactions. Hence, in this review a comprehensive update about the action of different types of gold catalysts, from simple to sophisticated ones, on C-H bond reactions and their regiochemical outcome is disclosed. This review also highlights the catalytic applications of Au(I)- and Au(III)-species in creating new opportunities for the regio- and site-selective activation of challenging C-H bonds. Finally, it also intends to stress the potential applications in selective C-H bond activation associated with a variety of heterocycles recently described in the literature.
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Affiliation(s)
- Chandrasekar Praveen
- Electrochemical Power Sources Division, Central Electrochemcial Research Institute (CSIR Laboratory) Alagappapuram, Karaikudi, 630003, Sivagangai District, Tamil Nadu, India
| | - Aurélien Dupeux
- Institut de Chimie de Nice, UMR 7272 CNRS, University Côte d'Azur Valrose Park, Faculty of Sciences, 06108, Nice Cedex 2, France
| | - Véronique Michelet
- Institut de Chimie de Nice, UMR 7272 CNRS, University Côte d'Azur Valrose Park, Faculty of Sciences, 06108, Nice Cedex 2, France
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6
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Sahoo T, Sarkar S, Ghosh SC. Copper(II) mediated C-8 amination of 1-naphthylamide derivatives with acyclic and cyclic amines. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.152858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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7
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Zhou X, Yu R, Wang J, Liao X, Xiong Y. Copper-Catalyzed Remote Sulfonylation of 1-Naphthylamides with Sodium-Sulfinates. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202106030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Mousa AH, Chakrabarti K, Isapour G, Bendix J, Wendt OF. Enhancing the Stability of Aromatic PCN Pincer Nickel Complexes by Incorporation of Pyridine as the Nitrogen Side Arm. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000727] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Abdelrazek H. Mousa
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
| | - Kaushik Chakrabarti
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
| | - Ghodsieh Isapour
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
| | - Jesper Bendix
- Department of Chemistry University of Copenhagen Universitetsparken 5 2100 Copenhagen Denmark
| | - Ola F. Wendt
- Centre for Analysis and Synthesis Department of Chemistry Lund University P. O. Box 124 221 00 Lund Sweden
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9
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Majeed MH, Shayesteh P, Tunå P, Persson AR, Gritcenko R, Wallenberg LR, Ye L, Hulteberg C, Schnadt J, Wendt OF. Directed C-H Halogenation Reactions Catalysed by Pd II Supported on Polymers under Batch and Continuous Flow Conditions. Chemistry 2019; 25:13591-13597. [PMID: 31418957 DOI: 10.1002/chem.201902949] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/14/2019] [Indexed: 12/21/2022]
Abstract
A new generation of N-heterocyclic carbene palladium(II) complexes containing vinyl groups in different positions in the backbone of the N-heterocycle have been developed. The fully characterised monomers were copolymerised with divinylbenzene to fabricate robust polymer supported NHC-PdII complexes and these polymers were applied as heterogeneous catalysts in directed C-H halogenation of arenes with a pyridine-type directing group. The catalysts demonstrated medium-high catalytic activity with up to 90 % conversion and 100 % selectivity in chlorination. They are heterogeneous and recyclable (at least six times) with no significant leaching of palladium in batch mode catalysis. The best catalyst was also applied under continuous flow conditions where it disclosed an exceptional activity (90 % conversion) and 100 % selectivity for the mono-halogenated product for at least six days, with no leaching of palladium, no loss of activity and an ability to maintain the original oxidation state of PdII .
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Affiliation(s)
- Maitham H Majeed
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden
| | - Payam Shayesteh
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00, Lund, Sweden
| | - Per Tunå
- Department of Chemical Engineering, Lund University, Box 124, 221 00, Lund, Sweden
| | - Axel R Persson
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden.,National Centre for High Resolution Electron Microscopy (nCHREM), Lund University, Box 124, 221 00, Lund, Sweden
| | - Roman Gritcenko
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden
| | - L Reine Wallenberg
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden.,National Centre for High Resolution Electron Microscopy (nCHREM), Lund University, Box 124, 221 00, Lund, Sweden
| | - Lei Ye
- Centre for Applied Life Sciences, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden
| | - Christian Hulteberg
- Department of Chemical Engineering, Lund University, Box 124, 221 00, Lund, Sweden
| | - Joachim Schnadt
- Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 221 00, Lund, Sweden
| | - Ola F Wendt
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Box 124, 221 00, Lund, Sweden
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10
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Kumar S, Pradhan S, Roy S, De PB, Punniyamurthy T. Iron-Catalyzed Regioselective Remote C(sp 2)-H Carboxylation of Naphthyl and Quinoline Amides. J Org Chem 2019; 84:10481-10489. [PMID: 31347363 DOI: 10.1021/acs.joc.9b01184] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Iron(III)-catalyzed regioselective direct remote C-H carboxylation of naphthyl and quinoline amides was developed using CBr4 and alcohol. The reaction involves a radical pathway using a coordination activation strategy and single electron transfer process. The use of sustainable iron catalysis, selectivity, and the substrate scope are the important practical features.
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Affiliation(s)
- Sandeep Kumar
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Sourav Pradhan
- Department of Chemistry , Indian Institute of Technology Guwahati , Guwahati 781039 , India
| | - Subhasish Roy
- 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
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11
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Sahoo T, Sen C, Singh H, Suresh E, Ghosh SC. Copper‐Catalyzed C‐4 Carboxylation of 1‐Naphthylamide Derivatives with CBr
4
/MeOH. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900482] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Tapan Sahoo
- Natural Products and Green Chemistry Division Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) G.B. Marg Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Chiranjit Sen
- Natural Products and Green Chemistry Division Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) G.B. Marg Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - Harshvardhan Singh
- Natural Products and Green Chemistry Division Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) G.B. Marg Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
| | - E. Suresh
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
- Analytical and Environmental Science Division and Centralized Instrument Facility CSIR-CSMCRI Bhavnagar 364002 Gujarat India
| | - Subhash Chandra Ghosh
- Natural Products and Green Chemistry Division Central Salt and Marine Chemicals Research Institute (CSIR-CSMCRI) G.B. Marg Bhavnagar 364002 Gujarat India
- Academy of Scientific and Innovative Research (AcSIR) Ghaziabad 201002 India
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12
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Li J, Qin Z, Zhang C, Zhang Y, Wen C. Copper‐catalyzed C‐H Bis‐nitration of 1‐Naphthylamide Derivatives with tert‐Butyl Nitrite as Nitro Source. ChemistrySelect 2019. [DOI: 10.1002/slct.201901177] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Jizhen Li
- Department of Organic ChemistryCollege of ChemistryJilin University Jiefang Road 2519 Changchun 130023 China
| | - Zengxin Qin
- Department of Organic ChemistryCollege of ChemistryJilin University Jiefang Road 2519 Changchun 130023 China
| | - Changjing Zhang
- Department of Organic ChemistryCollege of ChemistryJilin University Jiefang Road 2519 Changchun 130023 China
- College of ScienceNorth University of China Taiyuan 030051, Shanxi China
| | - Yingchao Zhang
- Department of Organic ChemistryCollege of ChemistryJilin University Jiefang Road 2519 Changchun 130023 China
| | - Chunxia Wen
- Department of Organic ChemistryCollege of ChemistryJilin University Jiefang Road 2519 Changchun 130023 China
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13
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Vanga M, Lalancette RA, Jäkle F. Controlling the Optoelectronic Properties of Pyrene by Regioselective Lewis Base‐Directed Electrophilic Aromatic Borylation. Chemistry 2019; 25:10133-10140. [DOI: 10.1002/chem.201901231] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Mukundam Vanga
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Roger A. Lalancette
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
| | - Frieder Jäkle
- Department of Chemistry Rutgers University-Newark 73 Warren Street Newark NJ 07102 USA
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14
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Liu K, Lalancette RA, Jäkle F. Tuning the Structure and Electronic Properties of B–N Fused Dipyridylanthracene and Implications on the Self-Sensitized Reactivity with Singlet Oxygen. J Am Chem Soc 2019; 141:7453-7462. [DOI: 10.1021/jacs.9b01958] [Citation(s) in RCA: 65] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Kanglei Liu
- Department of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Roger A. Lalancette
- Department of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Frieder Jäkle
- Department of Chemistry, Rutgers University−Newark, 73 Warren Street, Newark, New Jersey 07102, United States
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15
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16
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Guo Z, Gong D, Hu B, Chen D. Regioselectivity in C–H activation: Reactions of N-heterocyclic indenes with Ru3(CO)12. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.11.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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17
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Simayi R, Gillbard SM, Cross WB, Hope EG, Singh K, Solan GA. Ligand and solvent control of selectivity in the C-H activation of a pyridylimine-substituted 1-naphthalene; a combined synthetic and computational study. Dalton Trans 2018; 47:11680-11690. [PMID: 30101960 DOI: 10.1039/c8dt02565g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
The pyridylimine-substituted 1-naphthalenes, 2-(1-C10H7)-6-{CR[double bond, length as m-dash]N(2,6-i-Pr2C6H3)}C5H3N (R = Me HLMe, H HLH), react with Na2[PdCl4] in acetic acid at elevated temperature to afford either ortho-C-Hnaphthyl activated (LMe)PdCl (2ortho) or the unactivated adduct (HLH)PdCl2 (1b). Alternatively, 1b and its ketimine analogue (HLMe)PdCl2 (1a), can be prepared by treating (MeCN)2PdCl2 with either HLMe or HLH in chloroform at room temperature. Regio-selective ortho-C-H activation to form 2ortho can also be initiated by the thermolysis of 1a in acetic acid, while no reaction occurs under similar conditions with 1b. Interestingly, the C-H activation of HLMe to give 2ortho is found to be reversible with 100% deuteration of the peri-site occurring on reacting Na2[PdCl4] with HLMe in acetic acid-d4. By contrast, heating 1a in toluene gives a 55 : 45 mixture of 2ortho and its peri-activated isomer 2peri. Pure 2peri can, however, be obtained either from (LMe)PdOAc (3peri) by OAc/Cl exchange or by the sequential reactions of 1a with firstly silver acetate then with aqueous sodium chloride. Intriguingly, a peri to ortho interconversion occurs on heating 2peri in acetic acid to give 2ortho. DFT calculations have been used to investigate the C-H activation steps and it is found that in acetic acid ortho-C-H activation is kinetically and thermodynamically favoured but peri-CH activation is kinetically accessible (ΔΔG‡ = 2.4 kcal mol-1). By contrast in toluene, the reaction appears to be irreversible with the difference in barrier height for ortho- and peri-C-H activation being very small within the error of the method (ΔΔG‡ = 0.7 kcal mol-1), findings that are in agreement with the empirically observed product distribution for 2ortho and 2peri. Single crystal X-ray structures are reported for 1a, 1b, 2ortho and 2peri.
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Affiliation(s)
- Rena Simayi
- Department of Chemistry, University of Leicester, University Road, Leicester LE1 7RH, UK.
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18
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Zhu H, Sun S, Qiao H, Yang F, Kang J, Wu Y, Wu Y. Silver(I)-Catalyzed C4–H Amination of 1-Naphthylamine Derivatives with Azodicarboxylates. Org Lett 2018; 20:620-623. [DOI: 10.1021/acs.orglett.7b03749] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hongmei Zhu
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, PR China
| | - Suyan Sun
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, PR China
| | - Huijie Qiao
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, PR China
| | - Fan Yang
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, PR China
| | - Jianxun Kang
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, PR China
| | - Yusheng Wu
- Tetranov Biopharm, LLC. & Collaborative Innovation Center of New Drug Research and Safety Evaluation, Zhengzhou 450052, PR China
| | - Yangjie Wu
- The
College of Chemistry and Molecular Engineering, Henan Key Laboratory
of Chemical Biology and Organic Chemistry, Key Laboratory of Applied
Chemistry of Henan Universities, Zhengzhou University, Zhengzhou 450052, PR China
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19
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Xiong YS, Yu Y, Weng J, Lu G. Copper-catalyzed peri-selective direct sulfenylation of 1-naphthylamines with disulfides. Org Chem Front 2018. [DOI: 10.1039/c7qo01016h] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
A copper-catalyzed peri-selective direct C–H sulfenylation of 1-naphthylamines with disulfides was developed.
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Affiliation(s)
- Yan-Shi Xiong
- Institute of Medicinal Chemistry
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Yang Yu
- Institute of Medicinal Chemistry
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Jiang Weng
- Institute of Medicinal Chemistry
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
| | - Gui Lu
- Institute of Medicinal Chemistry
- School of Pharmaceutical Sciences
- Sun Yat-sen University
- Guangzhou 510006
- China
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21
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Mamidala R, Samser S, Sharma N, Lourderaj U, Venkatasubbaiah K. Isolation and Characterization of Regioisomers of Pyrazole-Based Palladacycles and Their Use in α-Alkylation of Ketones Using Alcohols. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00478] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ramesh Mamidala
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, 752050 Orissa, India
| | - Shaikh Samser
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, 752050 Orissa, India
| | - Nishant Sharma
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, 752050 Orissa, India
| | - Upakarasamy Lourderaj
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, 752050 Orissa, India
| | - Krishnan Venkatasubbaiah
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), HBNI, Bhubaneswar, 752050 Orissa, India
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22
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Li JM, Wang YH, Yu Y, Wu RB, Weng J, Lu G. Copper-Catalyzed Remote C–H Functionalizations of Naphthylamides through a Coordinating Activation Strategy and Single-Electron-Transfer (SET) Mechanism. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03671] [Citation(s) in RCA: 111] [Impact Index Per Article: 15.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jun-Ming Li
- Institute of Medicinal Chemistry, School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Yong-Heng Wang
- Institute of Medicinal Chemistry, School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Yang Yu
- Institute of Medicinal Chemistry, School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Rui-Bo Wu
- Institute of Medicinal Chemistry, School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Jiang Weng
- Institute of Medicinal Chemistry, School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
| | - Gui Lu
- Institute of Medicinal Chemistry, School
of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou 510006, People’s Republic of China
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23
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Ahlstrand DA, Polukeev AV, Marcos R, Ahlquist MSG, Wendt OF. Csp 3 -H Activation without Chelation Assistance in an Iridium Pincer Complex Forming Cyclometallated Products. Chemistry 2017; 23:1748-1751. [PMID: 27982473 DOI: 10.1002/chem.201604469] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Indexed: 01/07/2023]
Abstract
Cyclometallation of 8-methylquinoline and 2-(dimethylamino)-pyridine in an iridium-based pincer complex is described. The C-H activation of 2-(dimethylamino)pyridine is not chelation assisted, which has not been described before for Csp3 -H bonds in cyclometallation reactions. The mechanism of the cyclometallation of 2-(dimethylamino)pyridine was studied by DFT calculations and kinetic measurements.
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Affiliation(s)
- David A Ahlstrand
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, PO Box 124, 22100, Lund, Sweden
| | - Alexey V Polukeev
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, PO Box 124, 22100, Lund, Sweden
| | - Rocío Marcos
- School of Biotechnology, KTH Royal Institute of Technology, 106 91, Stockholm, Sweden
| | - Mårten S G Ahlquist
- School of Biotechnology, KTH Royal Institute of Technology, 106 91, Stockholm, Sweden
| | - Ola F Wendt
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, PO Box 124, 22100, Lund, Sweden
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24
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Kramer S. Recent Advances in Gold-Catalyzed Intermolecular Aryl C−H Functionalization. Chemistry 2016; 22:15584-15598. [DOI: 10.1002/chem.201602316] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Søren Kramer
- Center for Interdisciplinary Nanoscience (iNANO); Department of Chemistry; Aarhus University; Gustav Wieds vej 14 8000 Aarhus C Denmark
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25
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Juliá F, González-Herrero P. Aromatic C-H Activation in the Triplet Excited State of Cyclometalated Platinum(II) Complexes Using Visible Light. J Am Chem Soc 2016; 138:5276-82. [PMID: 27058394 DOI: 10.1021/jacs.5b13311] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The visible-light driven cyclometalation of arene substrates containing an N-donor heteroaromatic moiety as directing group by monocyclometalated Pt(II) complexes is reported. Precursors of the type [PtMe(C^N)(N^CH)], where N^CH is 2-phenylpyridine (ppyH) or related compunds with diverse electronic properties and C^N is the corresponding cyclometalated ligand, afford homoleptic cis-[Pt(C^N)2] complexes upon irradiation with blue LEDs at room temperature with evolution of methane. Heteroleptic derivatives cis-[Pt(ppy)(C'^N')] are obtained analogously from [PtMe(ppy)(N'^C'H)], where N'^C'H represents an extended set of heteroaromatic compounds. Experimental and computational studies demonstrate an unprecedented C-H oxidative addition, which is initiated by a triplet excited state of metal-to-ligand charge-transfer (MLCT) character and leads to a detectable Pt(IV) methyl hydride intermediate.
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Affiliation(s)
- Fabio Juliá
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia , Apartado 4021, 30071 Murcia, Spain
| | - Pablo González-Herrero
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia , Apartado 4021, 30071 Murcia, Spain
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26
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Kondrashov M, Provost D, Wendt OF. Regioselectivity in C-H activation: reagent control in cyclometallation of 2-(1-naphthyl)-pyridine. Dalton Trans 2016; 45:525-31. [PMID: 26597047 DOI: 10.1039/c5dt04068j] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
2-(1-Naphthyl)-pyridine () possesses sp(2) C-H bonds in both the γ- and δ-positions and is therefore a suitable substrate for studying the cyclometallation selectivity with different reagents and conditions. Such selectivity studies are reported. Based on deuterium-exchange experiments it is concluded that cycloruthenation with RuCl2(p-cymene) dimer is reversible with kinetic and thermodynamic preference for γ-substitution. Electrophilic cycloborylation, on the other hand, shows unusual δ-substitution. The previously published cyclopalladation and cycloauration of the substrate was studied in detail and was shown to be irreversible; they proceed under kinetic control and give γ- and δ-substitution for palladium and gold, respectively.
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Affiliation(s)
- Mikhail Kondrashov
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden.
| | - David Provost
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden.
| | - Ola F Wendt
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, P. O. Box 124, S-221 00 Lund, Sweden.
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27
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Cyclometallated phenyl-pyridine palladium species. Monomeric complex formation with potentially bridging ligands. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.12.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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28
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von Wachenfeldt H, Polukeev AV, Loganathan N, Paulsen F, Röse P, Garreau M, Wendt OF, Strand D. Cyclometallated gold(iii) aryl-pyridine complexes as efficient catalysts for three-component synthesis of substituted oxazoles. Dalton Trans 2015; 44:5347-53. [DOI: 10.1039/c4dt03806a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cyclometallated gold(iii) complexes efficiently catalyze the multicomponent reaction between imines, alkynes, and acyl chlorides to form trisubstituted oxazoles.
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Affiliation(s)
- Henrik von Wachenfeldt
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Alexey V. Polukeev
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Nagarajan Loganathan
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Filip Paulsen
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Philipp Röse
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Marion Garreau
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Ola F. Wendt
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
| | - Daniel Strand
- Centre for Analysis and Synthesis
- Department of Chemistry
- Lund University
- 221 00 Lund
- Sweden
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