1
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Zhang J, Liu T, Zhang G, Cai J, Wang Y, Tong J, Ma Y, Szostak R, Szostak M. Indazolin-3-ylidenes (Indy*): easily accessible, sterically-hindered indazole-derived N-heterocyclic carbenes and their application in gold catalysis. Dalton Trans 2024; 53:4260-4265. [PMID: 38344761 DOI: 10.1039/d4dt00287c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/28/2024]
Abstract
Sterically-hindered N-heterocyclic carbenes (NHCs) with functionalized N-wingtips are a pivotal class of ligands in organic synthesis. Herein, we report the first class of sterically-hindered N-heterocyclic carbenes based on the indazole framework. These ligands combine the strong σ-donation of the carbene center due to the carbene placement at the C3-indazole position with the sterically-hindered and flexible N-substitution with the versatile 2,6-bis(diphenylmethyl)aryl moiety that extends beyond the metal centre for the first time in non-classical N-heterocyclic carbenes. The ligands are readily accessible by the rare Cadogan indazole synthesis of sterically-hindered N-aryl-1-(2-nitrophenyl)methanimines. Steric and electronic characterization as well as catalytic studies in the synthesis of oxazolines are described. Considering the unique properties of indazole-derived carbenes, we anticipate that this class of compounds will find broad application in organic synthesis and catalysis.
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Affiliation(s)
- Jin Zhang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Ting Liu
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Gaopeng Zhang
- Kaili Catalyst & New Materials Co., Ltd, Xi'an 710299, China
| | - Jianglong Cai
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Yue Wang
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Jianbo Tong
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Yangmin Ma
- College of Chemistry and Chemical Engineering, Key Laboratory of Chemical Additives for China National Light Industry, Shaanxi University of Science and Technology, Xi'an 710021, China.
| | - Roman Szostak
- Department of Chemistry, Wroclaw University, F. Joliot-Curie 14, Wroclaw 50-383, Poland
| | - Michal Szostak
- Department of Chemistry, Rutgers University, 73 Warren Street, Newark, New Jersey 07102, USA.
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2
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Shiri F, Ho CC, Bissember AC, Ariafard A. Advancing Gold Redox Catalysis: Mechanistic Insights, Nucleophilicity-Guided Transmetalation, and Predictive Frameworks for the Oxidation of Aryl Gold(I) Complexes. Chemistry 2024; 30:e202302990. [PMID: 37967304 DOI: 10.1002/chem.202302990] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Indexed: 11/17/2023]
Abstract
Gold redox catalysis, often facilitated by hypervalent iodine(III) reagents, offers unique reactivity but its progress is mainly hindered by an incomplete mechanistic understanding. In this study, we investigated the reaction between the gold(I) complexes [(aryl)Au(PR3 )] and the hypervalent iodine(III) reagent PhICl2 , both experimentally and computationally and provided an explanation for the formation of divergent products as the ligands bonded to the gold(I) center change. We tackled this essential question by uncovering an intriguing transmetalation mechanism that takes place between gold(I) and gold(III) complexes. We found that the ease of transmetalation is governed by the nucleophilicity of the gold(I) complex, [(aryl)Au(PR3 )], with greater nucleophilicity leading to a lower activation energy barrier. Remarkably, transmetalation is mainly controlled by a single orbital - the gold dx 2 -y 2 orbital. This orbital also has a profound influence on the reactivity of the oxidative addition step. In this way, the fundamental mechanistic basis of divergent outcomes in reactions of aryl gold(I) complexes with PhICl2 was established and these observations are reconciled from first principles. The theoretical model developed in this study provides a conceptual framework for anticipating the outcomes of reactions involving [(aryl)Au(PR3 )] with PhICl2 , thereby establishing a solid foundation for further advancements in this field.
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Affiliation(s)
- Farshad Shiri
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran, Iran
| | - Curtis C Ho
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, 7001, Australia
| | - Alex C Bissember
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, 7001, Australia
| | - Alireza Ariafard
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
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3
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Byun WS, Lim H, Hong J, Bae ES, Lee SB, Kim Y, Lee J, Lee SK, Hong S. Design, Synthesis, and Biological Activity of Marinacarboline Analogues as STAT3 Pathway Inhibitors for Docetaxel-Resistant Triple-Negative Breast Cancer. J Med Chem 2023; 66:3106-3133. [PMID: 36786551 DOI: 10.1021/acs.jmedchem.2c01115] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/15/2023]
Abstract
Metastatic triple-negative breast cancer (mTNBC) is a fatal type of breast cancer (BC), and signal transducer and activator of transcription 3 (STAT3) has emerged as an effective target for mTNBC. In the present study, compound MC0704 was found to be a novel synthetic STAT3 pathway inhibitor, and its potential antitumor activity was demonstrated using in vitro and in vivo models in docetaxel-resistant TNBC cells. Based on marinacarboline (MC), a series β-carboline derivatives were synthesized and investigated for their antitumor activities against docetaxel-resistant MDA-MB-231 (MDA-MB-231-DTR) cells. Combining antiproliferation and STAT3 inhibitory activities, MC0704 was selected as the most promising β-carboline compound. MC0704 effectively impeded the metastatic potential of MDA-MB-231-DTR cells in vitro, and the combination of MC0704 and docetaxel exhibited potent antitumor activities in a xenograft mouse model. These findings suggested that MC0704 can be a lead candidate as a target therapeutic agent for TNBC patients with docetaxel resistance.
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Affiliation(s)
- Woong Sub Byun
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea.,Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Hyewon Lim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Junhwa Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Eun Seo Bae
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Seok Beom Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Younggwan Kim
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Jeeyeon Lee
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Sang Kook Lee
- Natural Products Research Institute, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
| | - Suckchang Hong
- Research Institute of Pharmaceutical Sciences, College of Pharmacy, Seoul National University, Seoul 08826, Republic of Korea
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4
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Shiri F, Ariafard A. Mechanistic details for oxidative addition of PhICl 2 to gold( i) complexes. Chem Commun (Camb) 2023; 59:4668-4671. [PMID: 36994794 DOI: 10.1039/d3cc00543g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
Abstract
Our study discovered a new stepwise mechanism for the oxidative addition of PhICl2 to LAuAr. Fewer electron-withdrawing substituents on the Ar ligand increase the energy of Au(i) dx2−y2 orbital, making the reaction easier to achieve.
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Affiliation(s)
- Farshad Shiri
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran, Iran
| | - Alireza Ariafard
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran, Iran
- School of Natural Science (Chemistry), University of Tasmania, Private Bag 75, Hobart, TAS 7001, Australia
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5
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Kulkarni VK, Khiarak BN, Takano S, Malola S, Albright EL, Levchenko TI, Aloisio MD, Dinh CT, Tsukuda T, Häkkinen H, Crudden CM. N-Heterocyclic Carbene-Stabilized Hydrido Au 24 Nanoclusters: Synthesis, Structure, and Electrocatalytic Reduction of CO 2. J Am Chem Soc 2022; 144:9000-9006. [PMID: 35549258 DOI: 10.1021/jacs.2c00789] [Citation(s) in RCA: 51] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Atomically precise hydrido gold nanoclusters are extremely rare but interesting due to their potential applications in catalysis. By optimization of molecular precursors, we have prepared an unprecedented N-heterocyclic carbene-stabilized hydrido gold nanocluster, [Au24(NHC)14Cl2H3]3+. This cluster comprises a dimer of two Au12 kernels, each adopting an icosahedral shape with one missing vertex. The two kernels are joined through triangular faces, which are capped with a total of three hydrides. The hydrides are detected by electrospray ionization mass spectrometry and nuclear magnetic resonance spectroscopy, with density functional theory calculations supporting their position bridging the six uncoordinated gold sites. The reactivity of this Au24H3 cluster in the electrocatalytic reduction of CO2 is demonstrated and benchmarked against related catalysts.
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Affiliation(s)
- Viveka K Kulkarni
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario K7L 3N6, Canada
| | | | - Shinjiro Takano
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Sami Malola
- Departments of Chemistry and Physics, Nanoscience Center, University of Jyväskylä, Jyväskylä 40014, Finland
| | - Emily L Albright
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario K7L 3N6, Canada
| | - Tetyana I Levchenko
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario K7L 3N6, Canada
| | - Mark D Aloisio
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario K7L 3N6, Canada
| | - Cao-Thang Dinh
- Department of Chemical Engineering, Queen's University, Dupuis Hall, Kingston, Ontario K7L 3N6, Canada
| | - Tatsuya Tsukuda
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Hannu Häkkinen
- Departments of Chemistry and Physics, Nanoscience Center, University of Jyväskylä, Jyväskylä 40014, Finland
| | - Cathleen M Crudden
- Department of Chemistry, Queen's University, Chernoff Hall, Kingston, Ontario K7L 3N6, Canada.,Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya 464-8602, Japan
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6
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Nakamura I, Terada M. Gold-Catalyzed Skeletal Rearrangement Reactions of O-Propargylic and O-Homopropargylic Oximes. HETEROCYCLES 2022. [DOI: 10.3987/rev-22-984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Navarro M, Tabey A, Szalóki G, Mallet-Ladeira S, Bourissou D. Stable Au(III) Complexes Bearing Hemilabile P ∧N and C ∧N Ligands: Coordination of the Pendant Nitrogen upon Oxidation of Gold. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00258] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Miquel Navarro
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Alexis Tabey
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - György Szalóki
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Sonia Mallet-Ladeira
- Institut de Chimie de Toulouse, (UAR 2599), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
| | - Didier Bourissou
- CNRS, Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Toulouse Cedex 09, France
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8
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Jónsson HF, Orthaber A, Fiksdahl A. Studies on gold(I) and gold(III) alcohol functionalised NHC complexes. Dalton Trans 2021; 50:5128-5138. [PMID: 33720256 DOI: 10.1039/d1dt00387a] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Five pairs of novel chiral alcohol functionalised gold(i) and gold(iii) NHC complexes derived from chiral amino alcohols, were synthesized and characterised (NMR, IR, HRMS). Single crystal X-ray diffraction data of gold(i) and gold(iii) complexes are reported and discussed. The chiral imidazolium preligands were readily synthesized via the oxalamides, subsequent reduction and final orthoformate condensation. An improved method was used for generation of gold(i) NHC complexes (up to 92%) and further oxidation afforded the corresponding gold(iii) NHC complexes (up to 99%). All the Au(i) and Au(iii) NHC complexes proved far more catalytically active in a 1,6-enyne alkoxycyclization test reaction than our previously tested N,N- and P,N-ligated Au(iii) complexes. Comparative gold(i) and gold(iii) catalytic studies demonstrated different catalytic ability, depending on the NHC ligand flexibility and bulkiness. Excellent yields (92-99%) of target alkoxycyclization product were obtained with both gold(i) and gold(iii) complexes with the bulky N1-Mes-N2-ethanol based NHC ligand.
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Affiliation(s)
- Helgi Freyr Jónsson
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
| | - Andreas Orthaber
- Department of Organic Chemistry - Ångström Laboratory, Uppsala University, Lägerhyddsvägen 1, 751 20, Uppsala, Sweden
| | - Anne Fiksdahl
- Department of Chemistry, Norwegian University of Science and Technology, NO-7491 Trondheim, Norway.
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9
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Sheikh KUN, Amin H, Haque RA, Abdul Majid AS, Yaseen M, Iqbal MA. An overview of synthetic methodologies of organometallic and coordination compounds of gold. J COORD CHEM 2021. [DOI: 10.1080/00958972.2020.1866176] [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]
Affiliation(s)
| | - Hira Amin
- Department of Chemistry, University of Agriculture, Faislababd, Pakistan
| | - Rosenani A Haque
- School of Chemical Science, Universiti Sains Malaysia, Penang, Malaysia
| | | | - Muhammad Yaseen
- Department of Chemistry, Division of Science & Technology, University of Education, Lahore, Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, University of Agriculture, Faislababd, Pakistan
- Organometallic & Coordination Chemistry Laboratory, University of Agriculture, Faislababd, Pakistan
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10
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Behera PK, Maity L, Kisan HK, Dutta B, Isab AA, Chandra SK, Dinda J. Gold(I) and gold(III) complexes supported by a pyrazine / pyrimidine wingtip N-heterocyclic carbene: Synthesis, structure and DFT studies. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129253] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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11
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Rocchigiani L, Bochmann M. Recent Advances in Gold(III) Chemistry: Structure, Bonding, Reactivity, and Role in Homogeneous Catalysis. Chem Rev 2020; 121:8364-8451. [DOI: 10.1021/acs.chemrev.0c00552] [Citation(s) in RCA: 64] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Luca Rocchigiani
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
| | - Manfred Bochmann
- School of Chemistry, University of East Anglia, Norwich Research Park, Norwich NR47TJ, United Kingdom
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12
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Medina‐Mercado I, Porcel S. Insights into the Mechanism of Gold(I) Oxidation with Aryldiazonium Salts. Chemistry 2020; 26:16206-16221. [DOI: 10.1002/chem.202000884] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 05/20/2020] [Indexed: 01/14/2023]
Affiliation(s)
- Ignacio Medina‐Mercado
- Instituto de Química Universidad Nacional Autónoma de, México Circuito Exterior s/n Ciudad Universitaria, Cd. Mx. 04510 México
| | - Susana Porcel
- Instituto de Química Universidad Nacional Autónoma de, México Circuito Exterior s/n Ciudad Universitaria, Cd. Mx. 04510 México
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13
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Manar KK, Chakrabortty S, Porwal VK, Prakash D, Thakur SK, Choudhury AR, Singh S. Two‐Coordinate Cu(I) and Au(I) Complexes Supported by BICAAC and CAAC Ligands. ChemistrySelect 2020. [DOI: 10.1002/slct.202002295] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Krishna K. Manar
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
| | - Soumyadeep Chakrabortty
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
| | - Vishal Kumar Porwal
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
| | - Darsana Prakash
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
| | - Sandeep Kumar Thakur
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
| | - Angshuman Roy Choudhury
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
| | - Sanjay Singh
- Department of Chemical Sciences Indian Institute of Science Education and Research Mohali, Knowledge City, Sector 81 SAS Nagar, Mohali 140306 Punjab India
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14
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Levchenko V, Glessi C, Øien-Ødegaard S, Tilset M. Organometallic chemistry in aqua regia: metal and ligand based oxidations of (NHC)AuCl complexes. Dalton Trans 2020; 49:3473-3479. [PMID: 32103221 DOI: 10.1039/c9dt04472h] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The synthesis and characterization of a series of N-heterocyclic carbene (NHC) complexes of Au(iii), (NHC)AuCl3, is described. High yields are obtained when the corresponding Au(i) species (NHC)AuCl are oxidized with inexpensive aqua regia. The oxidation is in some cases accompanied by substitution and/or anti addition of Cl2 across the backbone C[double bond, length as m-dash]C bond of unsaturated NHC ligands.
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Affiliation(s)
- Volodymyr Levchenko
- Department of Chemistry and Center for Materials Science and Nanotechnology (SMN), Faculty of Mathematics and Natural Sciences, University of Oslo, P.O. Box 1126 Blindern, NO-0318 Oslo, Norway.
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15
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Reactivity of 5-alkynyl-3,4-dihydro-2H-pyrroles with Au(III): Route to vinylgold(III) complexes, aurocycles by cyclisation of these complexes and ML complexes. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.07.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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16
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Affiliation(s)
- Mohammad Albayer
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
| | - Jason L. Dutton
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria, Australia
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17
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Shiga K, Gridnev ID, Terada M, Nakamura I. Au-catalyzed skeletal rearrangement of O-propargylic oximes via N-O bond cleavage with the aid of a Brønsted base cocatalyst. Chem Sci 2019; 10:5283-5289. [PMID: 31191884 PMCID: PMC6540908 DOI: 10.1039/c9sc00501c] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 04/16/2019] [Indexed: 12/24/2022] Open
Abstract
Au-catalyzed skeletal rearrangement reaction of O-propargylic oxime proceeded via N–O bond cleavage with the aid of a Brønsted base cocatalyst.
O-Propargylic oximes that possess an electron-withdrawing aryl group on the oxime moiety undergo Au-catalyzed skeletal rearrangements via N–O bond cleavage to afford the corresponding 2H-1,3-oxazine derivatives. Our studies show that the inclusion of a Brønsted base cocatalyst not only accelerates the reaction but also switches pathways of the skeletal rearrangement reaction, realizing divergent synthesis of heterocyclic compounds. Computational studies indicate that the elimination of propargylic proton in the cyclized vinylgold intermediate is rate-determining and both electron-withdrawing substituents at the oxime moiety and base cocatalyst facilitate the proton elimination. Moreover, the protodeauration process proceeds stepwise involving N–O bond cleavage followed by recyclization to construct the oxazine core.
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Affiliation(s)
- Keigo Shiga
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Ilya D Gridnev
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Masahiro Terada
- Department of Chemistry , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan
| | - Itaru Nakamura
- Research and Analytical Center for Giant Molecules , Graduate School of Science , Tohoku University , Sendai , 980-8578 , Japan .
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18
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Gasperini D, Greenhalgh MD, Imad R, Siddiqui S, Malik A, Arshad F, Choudhary MI, Al-Majid AM, Cordes DB, Slawin AMZ, Nolan SP, Smith AD. Chiral Au I - and Au III -Isothiourea Complexes: Synthesis, Characterization and Application. Chemistry 2019; 25:1064-1075. [PMID: 30357947 DOI: 10.1002/chem.201804653] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/19/2018] [Indexed: 11/09/2022]
Abstract
During an investigation into the potential union of Lewis basic isothiourea organocatalysis and gold catalysis, the formation of gold-isothiourea complexes was observed. These novel gold complexes were formed in high yield and were found to be air- and moisture stable. A series of neutral and cationic chiral gold(I) and gold(III) complexes bearing enantiopure isothiourea ligands was therefore synthesized and fully characterized. The steric and electronic properties of the isothiourea ligands was assessed through calculation of their percent buried volume and the synthesis and analysis of novel iridium(I)-isothiourea carbonyl complexes. The novel gold(I)- and gold(III)-isothiourea complexes have been applied in preliminary catalytic and biological studies, and display promising preliminary levels of catalytic activity and potency towards cancerous cell lines and clinically relevant enzymes.
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Affiliation(s)
- Danila Gasperini
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Mark D Greenhalgh
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Rehan Imad
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Shezaib Siddiqui
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Anum Malik
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Fizza Arshad
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Muhammad Iqbal Choudhary
- H.E.J Research Institute of Chemistry, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, 75270, Pakistan.,Department of Biochemistry, Faculty of Science, King Abdulaziz University, Jeddah, 21412, Saudi Arabia
| | - Abdullah M Al-Majid
- Department of Chemistry and Center for Sustainable Chemistry, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia
| | - David B Cordes
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Alexandra M Z Slawin
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, King Saud University, P.O. Box 2455, Riyadh, 11451, Saudi Arabia.,Chemistry Department, College of Science, Ghent University, Krijgslaan 281, 9000, Ghent, Belgium
| | - Andrew D Smith
- EaStCHEM, School of Chemistry, University of St Andrews, St Andrews, Fife, KY16 9ST, UK
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19
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An H, Mai S, Xuan Q, Zhou Y, Song Q. Gold-Catalyzed Radical-Involved Intramolecular Cyclization of Internal N-Propargylamides for the Construction of 5-Oxazole Ketones. J Org Chem 2018; 84:401-408. [DOI: 10.1021/acs.joc.8b02334] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Hejun An
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, People’s Republic of China
| | - Shaoyu Mai
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, People’s Republic of China
| | - Qingqing Xuan
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, People’s Republic of China
| | - Yao Zhou
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, People’s Republic of China
| | - Qiuling Song
- Institute of Next Generation Matter Transformation, College of Chemical Engineering, College of Material Sciences Engineering at Huaqiao University, 668 Jimei Boulevard, Xiamen, Fujian 361021, People’s Republic of China
- Department of Chemistry, Fuzhou University, Fuzhou, Fujian 350108, People’s Republic of China
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20
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Corbo R, Dutton JL. Weiss’ Reagents: A synthetically useful class of iodine(III) coordination compounds. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2017.10.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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21
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Schießl J, Stein PM, Stirn J, Emler K, Rudolph M, Rominger F, Hashmi ASK. Strategic Approach on N
-Oxides in Gold Catalysis - A Case Study. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801007] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Jasmin Schießl
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Philipp M. Stein
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Judith Stirn
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Kirsten Emler
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Heidelberg University; Im Neuenheimer Feld 270 69120 Heidelberg Germany
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22
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Rigo M, Hettmanczyk L, Heutz FJL, Hohloch S, Lutz M, Sarkar B, Müller C. Phosphinines versus mesoionic carbenes: a comparison of structurally related ligands in Au(i)-catalysis. Dalton Trans 2018; 46:86-95. [PMID: 27897296 DOI: 10.1039/c6dt03766f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Gold(i) complexes based on a 2,4,6-triarylphosphinine and a mesoionic carbene derivative have been prepared and characterized crystallographically. Although structurally related, both heterocycles differ significantly in their donor/acceptor properties. These opposed electronic characteristics have been exploited in Au(i)-catalyzed cycloisomerization reactions. For the conversion of the standard substrate dimethyl 2-(3-methylbut-2-enyl)-2-(prop-2-ynyl)malonate the results obtained for both Au-catalysts were found to be very similar and comparable to the ones reported in the literature for other carbene- or phosphorus(iii)-based Au(i)-complexes. In contrast, a clear difference between the catalytic systems was found for the cycloisomerization of the more challenging substrate N-2-propyn-1-ylbenzamide. A combination of the phosphinine-based complex and [AgSbF6] or [Cu(OTf)2] leads to a catalytic species, which is more active than the mesoionic carbene-based coordination compound. We attribute these differences to the stronger π-accepting ability of phosphinines in comparison to mesoionic carbenes. The here presented results show for the first time that phosphinines can be used efficiently as π-accepting ligands in Au(i)-catalyzed cycloisomerization reactions.
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Affiliation(s)
- Massimo Rigo
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Lara Hettmanczyk
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Frank J L Heutz
- EaStCHEM, School of Chemistry, University of St Andrews, North Haugh, St Andrews, KY16 9ST, UK
| | - Stephan Hohloch
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Martin Lutz
- Bijvoet Center for Biomolecular Research, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - Biprajit Sarkar
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
| | - Christian Müller
- Institut für Chemie und Biochemie, Freie Universität Berlin, Fabeckstr. 34/36, 14195 Berlin, Germany.
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23
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Jhulki L, Dutta P, Santra MK, Cardoso MH, Oshiro KGN, Franco OL, Bertolasi V, Isab AA, Bielawski CW, Dinda J. Synthesis and cytotoxic characteristics displayed by a series of Ag(i)-, Au(i)- and Au(iii)-complexes supported by a common N-heterocyclic carbene. NEW J CHEM 2018. [DOI: 10.1039/c8nj02008f] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The design, synthesis and anticancer properties of a series of Ag(i), Au(i) and Au(iii)–NHC complexes supported by pyridyl[1,2-a]{2-acetylylphenylimidazol}-3-ylidene are described.
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Affiliation(s)
- Lalmohan Jhulki
- School of Applied Science
- Haldia Institute of Technology
- Haldia 721657
- India
| | - Parul Dutta
- National Centre for Cell Science
- Pune 411007
- India
| | | | - Marlon H. Cardoso
- Programa de Pós-Graduação em Patologia Molecular
- Faculdade de Medicina
- Universidade de Brasília
- Brasília-DF
- Brazil
| | - Karen G. N. Oshiro
- Programa de Pós-Graduação em Patologia Molecular
- Faculdade de Medicina
- Universidade de Brasília
- Brasília-DF
- Brazil
| | - Octávio L. Franco
- Programa de Pós-Graduação em Patologia Molecular
- Faculdade de Medicina
- Universidade de Brasília
- Brasília-DF
- Brazil
| | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche
- Centro di Strutturistica Diffrattometrica
- Universita' di Ferrara
- Italy
| | - Anvarhusein A. Isab
- Department of Chemistry
- King Fahd University of Petroleum and Minerals
- Dhahran 31261
- Saudi Arabia
| | - Christopher W. Bielawski
- Center for Multidimensional Carbon Materials (CMCM)
- Institute for Basic Science (IBS)
- Ulsan 44919
- Republic of Korea
- Department of Chemistry and Department of Energy Engineering
| | - Joydev Dinda
- Department of Chemistry
- Utkal University
- Bhubaneswar 751004
- India
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24
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Huang R, Yang Y, Wang DS, Zhang L, Wang D. Where does Au coordinate to N-(2-pyridiyl)benzotriazole: gold-catalyzed chemoselective dehydrogenation and borrowing hydrogen reactions. Org Chem Front 2018. [DOI: 10.1039/c7qo00756f] [Citation(s) in RCA: 53] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Pyridyltriazole gold(i) complexes proved to be an efficient precatalyst for the most challenging gold-catalyzed borrowing hydrogen reaction and dehydrogenation of alcohols and amines.
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Affiliation(s)
- Ronghui Huang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | - Yongchun Yang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
| | | | - Liang Zhang
- National Engineering Laboratory for Cereal Fermentation Technology
- Jiangnan University
- Wuxi 214122
- China
| | - Dawei Wang
- Key Laboratory of Synthetic and Biological Colloids
- Ministry of Education
- School of Chemical and Material Engineering
- Jiangnan University
- Wuxi 214122
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25
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Lauder K, Toscani A, Scalacci N, Castagnolo D. Synthesis and Reactivity of Propargylamines in Organic Chemistry. Chem Rev 2017; 117:14091-14200. [PMID: 29166000 DOI: 10.1021/acs.chemrev.7b00343] [Citation(s) in RCA: 290] [Impact Index Per Article: 41.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Propargylamines are a versatile class of compounds which find broad application in many fields of chemistry. This review aims to describe the different strategies developed so far for the synthesis of propargylamines and their derivatives as well as to highlight their reactivity and use as building blocks in the synthesis of chemically relevant organic compounds. In the first part of the review, the different synthetic approaches to synthesize propargylamines, such as A3 couplings and C-H functionalization of alkynes, have been described and organized on the basis of the catalysts employed in the syntheses. Both racemic and enantioselective approaches have been reported. In the second part, an overview of the transformations of propargylamines into heterocyclic compounds such as pyrroles, pyridines, thiazoles, and oxazoles, as well as other relevant organic derivatives, is presented.
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Affiliation(s)
- Kate Lauder
- School of Cancer and Pharmaceutical Sciences, King's College London , Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Anita Toscani
- School of Cancer and Pharmaceutical Sciences, King's College London , Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Nicolò Scalacci
- School of Cancer and Pharmaceutical Sciences, King's College London , Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
| | - Daniele Castagnolo
- School of Cancer and Pharmaceutical Sciences, King's College London , Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, United Kingdom
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26
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Pujol A, Lafage M, Rekhroukh F, Saffon-Merceron N, Amgoune A, Bourissou D, Nebra N, Fustier-Boutignon M, Mézailles N. A Nucleophilic Gold(III) Carbene Complex. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706197] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Anthony Pujol
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Mathieu Lafage
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Feriel Rekhroukh
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; 31062 Toulouse Cedex France
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Noel Nebra
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
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27
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Pujol A, Lafage M, Rekhroukh F, Saffon-Merceron N, Amgoune A, Bourissou D, Nebra N, Fustier-Boutignon M, Mézailles N. A Nucleophilic Gold(III) Carbene Complex. Angew Chem Int Ed Engl 2017; 56:12264-12267. [DOI: 10.1002/anie.201706197] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Anthony Pujol
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Mathieu Lafage
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Feriel Rekhroukh
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Nathalie Saffon-Merceron
- Institut de Chimie de Toulouse ICT-FR2599; Université Paul Sabatier; 31062 Toulouse Cedex France
| | - Abderrahmane Amgoune
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Didier Bourissou
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Noel Nebra
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Marie Fustier-Boutignon
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
| | - Nicolas Mézailles
- Laboratoire Hétérochimie Fondamentale et Appliquée; Université Paul Sabatier/CNRS UMR 5069; 118 Route de Narbonne 31062 Toulouse Cedex France
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28
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Pell TP, Stringer BD, Tubaro C, Hogan CF, Wilson DJD, Barnard PJ. Probing Conformational Variation in Luminescent Dinuclear Gold(I) N-Heterocyclic Carbene Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700484] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Thomas P. Pell
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - Bradley D. Stringer
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - Cristina Tubaro
- Dipartimento di Scienze Chimiche; Università degli Studi di Padova; via Marzolo 1 35131 Padova Italy
| | - Conor F. Hogan
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - David J. D. Wilson
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
| | - Peter J. Barnard
- Department of Chemistry and Physics; La Trobe Institute for Molecular Science; La Trobe University; 3086 Melbourne Victoria Australia
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29
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Tšupova S, Cadu A, Stuck F, Rominger F, Rudolph M, Samec JSM, Hashmi ASK. Dual Gold(I)-catalyzed Cyclization of Dialkynyl Pyridinium Salts. ChemCatChem 2017. [DOI: 10.1002/cctc.201700018] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Svetlana Tšupova
- Organisch-Chemisches Institut; Ruprecht-Karls Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Alban Cadu
- Organisch-Chemisches Institut; Ruprecht-Karls Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Department of Organic Chemistry-BMC; Uppsala University; Box 276 S-75123 Uppsala Sweden
| | - Fabian Stuck
- Organisch-Chemisches Institut; Ruprecht-Karls Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches Institut; Ruprecht-Karls Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Ruprecht-Karls Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Joseph S. M. Samec
- Department of Organic Chemistry; Stockholm University; S-10691 Stockholm Sweden
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Ruprecht-Karls Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department; Faculty of Science; King Abdulaziz University; Jeddah 21589 Saudi Arabia
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30
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Hypervalent Iodine Reagents in High Valent Transition Metal Chemistry. Molecules 2017; 22:molecules22050780. [PMID: 28498333 PMCID: PMC6154742 DOI: 10.3390/molecules22050780] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 05/06/2017] [Accepted: 05/08/2017] [Indexed: 01/12/2023] Open
Abstract
Over the last 20 years, high valent metal complexes have evolved from mere curiosities to being at the forefront of modern catalytic method development. This approach has enabled transformations complimentary to those possible via traditional manifolds, most prominently carbon-heteroatom bond formation. Key to the advancement of this chemistry has been the identification of oxidants that are capable of accessing these high oxidation state complexes. The oxidant has to be both powerful enough to achieve the desired oxidation as well as provide heteroatom ligands for transfer to the metal center; these heteroatoms are often subsequently transferred to the substrate via reductive elimination. Herein we will review the central role that hypervalent iodine reagents have played in this aspect, providing an ideal balance of versatile reactivity, heteroatom ligands, and mild reaction conditions. Furthermore, these reagents are environmentally benign, non-toxic, and relatively inexpensive compared to other inorganic oxidants. We will cover advancements in both catalysis and high valent complex isolation with a key focus on the subtle effects that oxidant choice can have on reaction outcome, as well as limitations of current reagents.
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31
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Bose A, Jana S, Saha A, Mandal TK. Amphiphilic polypeptide-polyoxazoline graft copolymer conjugate with tunable thermoresponsiveness: Synthesis and self-assembly into various micellar structures in aqueous and nonaqueous media. POLYMER 2017. [DOI: 10.1016/j.polymer.2016.12.068] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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32
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Bulgakov BA, Sulimov AV, Babkin AV, Kepman AV, Malakho AP, Avdeev VV. Dual-curing thermosetting monomer containing both propargyl ether and phthalonitrile groups. J Appl Polym Sci 2017. [DOI: 10.1002/app.44786] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- B. A. Bulgakov
- Department of Chemistry; Chair of Chemical Technology and New Materials, Lomonosov Moscow State University; Moscow Russia
| | - A. V. Sulimov
- Faculty of Materials Science; Lomonosov Moscow State University; Moscow Russia
| | - A. V. Babkin
- Institute of New Carbon Materials and Technologies, Leninskie gory st, 1-11; Moscow 119991 Russia
| | - A. V. Kepman
- Department of Chemistry; Chair of Chemical Technology and New Materials, Lomonosov Moscow State University; Moscow Russia
- Institute of New Carbon Materials and Technologies, Leninskie gory st, 1-11; Moscow 119991 Russia
| | - A. P. Malakho
- Department of Chemistry; Chair of Chemical Technology and New Materials, Lomonosov Moscow State University; Moscow Russia
| | - V. V. Avdeev
- Department of Chemistry; Chair of Chemical Technology and New Materials, Lomonosov Moscow State University; Moscow Russia
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33
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Nocentini A, Ferraroni M, Carta F, Ceruso M, Gratteri P, Lanzi C, Masini E, Supuran CT. Benzenesulfonamides Incorporating Flexible Triazole Moieties Are Highly Effective Carbonic Anhydrase Inhibitors: Synthesis and Kinetic, Crystallographic, Computational, and Intraocular Pressure Lowering Investigations. J Med Chem 2016; 59:10692-10704. [PMID: 27933963 DOI: 10.1021/acs.jmedchem.6b01389] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Herein we report the synthesis of two series of benzenesulfonamide containing compounds that incorporate the phenyl-1,2,3-triazole moieties. We explored the insertion of appropriate linkers, such as ether, thioether, and amino type, into the inner section of the molecules with the intent to confer additional flexibility. All obtained compounds were screened in vitro as inhibitors of the physiologically relevant human (h) isoforms of the metalloenzyme carbonic anhydrase (CA, EC 4.2.1.1). Many of them were low nanomolar or subnanomolar hCA II, IX, and XII inhibitors, whereas they did not potently inhibit hCA I. Computational and X-ray crystallographic studies of the enzyme-inhibitor adducts helped us to rationalize the obtained results. Some of the sulfonamides reported here showed significant intraocular pressure lowering activity in an animal model of glaucoma.
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Affiliation(s)
- Alessio Nocentini
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Scienze Farmaceutiche, Laboratory of Molecular Modeling Cheminformatics & QSAR, via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
| | - Marta Ferraroni
- Università degli Studi di Firenze , Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy
| | - Fabrizio Carta
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
| | - Mariangela Ceruso
- Università degli Studi di Firenze , Polo Scientifico, Via della Lastruccia 3, 50019 Sesto Fiorentino (Florence), Italy
| | - Paola Gratteri
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Scienze Farmaceutiche, Laboratory of Molecular Modeling Cheminformatics & QSAR, via U. Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
| | - Cecilia Lanzi
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Farmacologia, Viale Pieraccini 6, 50139 Florence, Italy
| | - Emanuela Masini
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Farmacologia, Viale Pieraccini 6, 50139 Florence, Italy
| | - Claudiu T Supuran
- Università degli Studi di Firenze , Neurofarba Department., Sezione di Scienze Farmaceutiche, Via Ugo Schiff 6, 50019 Sesto Fiorentino (Florence), Italy
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34
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Collado A, Bohnenberger J, Oliva-Madrid MJ, Nun P, Cordes DB, Slawin AMZ, Nolan SP. Synthesis of AuI- and AuIII-Bis(NHC) Complexes: Ligand Influence on Oxidative Addition to AuISpecies. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201600791] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Alba Collado
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Jan Bohnenberger
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - María-José Oliva-Madrid
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Pierrick Nun
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - David B. Cordes
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Alexandra M. Z. Slawin
- EaStCHEM; School of Chemistry; University of St Andrews; Purdie Building, North Haugh KY16 9ST St Andrews, Fife United Kingdom
| | - Steven P. Nolan
- Department of Inorganic and Physical Chemistry; Ghent University; Krijgslaan 281 - S3 9000 Gent Belgium
- Chemistry Department; College of Science; King Saud University; P. O. Box 2455 11451 Riyadh Saudi Arabia
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35
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Yang Y, Hu W, Ye X, Wang D, Shi X. Preparation of Triazole Gold(III) Complex as an Effective Catalyst for the Synthesis of
E
‐α‐Haloenones. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600243] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Yongchun Yang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi 214122 Jiangsu Province, People's Republic of China
| | - Wenkang Hu
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi 214122 Jiangsu Province, People's Republic of China
| | - Xiaohan Ye
- Department of Chemistry University of South Florida 4202 E. Fowler Ave Tampa, Florida 33620 USA
| | - Dawei Wang
- The Key Laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering Jiangnan University Wuxi 214122 Jiangsu Province, People's Republic of China
| | - Xiaodong Shi
- Department of Chemistry University of South Florida 4202 E. Fowler Ave Tampa, Florida 33620 USA
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36
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Abstract
In this critical review the reactivity patterns observed with different types of diyne substrates in gold catalysis are discussed. Apart from the many examples from homogeneous catalysis, the few examples from heterogeneous gold catalysis are also included. With a proper arrangement of the two alkynes unique and exciting reactivity patterns like 1,3-carbonyl transpositions, carbene transfer reactions, cascade annulations, macrocyclisations or the formation of gold vinylidene intermediates are observed. These reactions are of interest for organic synthesis, for pharmaceutical and medicinal chemistry and for material science.
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Affiliation(s)
- Abdullah M Asiri
- Chemistry Department, Faculty of Science, King Abdulaziz University (KAU), Jeddah 21589, Saudi Arabia
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37
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Yang Y, Qin A, Zhao K, Wang D, Shi X. Design and Synthesis of Alanine Triazole Ligands and Application in Promotion of Hydration, Allene Synthesis and Borrowing Hydrogen Reactions. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600141] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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38
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Abstract
The preparation, structure, and chemistry of hypervalent iodine compounds are reviewed with emphasis on their synthetic application. Compounds of iodine possess reactivity similar to that of transition metals, but have the advantage of environmental sustainability and efficient utilization of natural resources. These compounds are widely used in organic synthesis as selective oxidants and environmentally friendly reagents. Synthetic uses of hypervalent iodine reagents in halogenation reactions, various oxidations, rearrangements, aminations, C-C bond-forming reactions, and transition metal-catalyzed reactions are summarized and discussed. Recent discovery of hypervalent catalytic systems and recyclable reagents, and the development of new enantioselective reactions using chiral hypervalent iodine compounds represent a particularly important achievement in the field of hypervalent iodine chemistry. One of the goals of this Review is to attract the attention of the scientific community as to the benefits of using hypervalent iodine compounds as an environmentally sustainable alternative to heavy metals.
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Affiliation(s)
- Akira Yoshimura
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
| | - Viktor V Zhdankin
- Department of Chemistry and Biochemistry, University of Minnesota Duluth , Duluth, Minnesota 55812, United States
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39
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Roşca DA, Wright JA, Bochmann M. An element through the looking glass: exploring the Au-C, Au-H and Au-O energy landscape. Dalton Trans 2015; 44:20785-807. [PMID: 26584519 PMCID: PMC4669034 DOI: 10.1039/c5dt03930d] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2015] [Accepted: 11/12/2015] [Indexed: 11/21/2022]
Abstract
Gold, the archetypal "noble metal", used to be considered of little interest in catalysis. It is now clear that this was a misconception, and a multitude of gold-catalysed transformations has been reported. However, one consequence of the long-held view of gold as inert metal is that its organometallic chemistry contains many "unknowns", and catalytic cycles devised to explain gold's reactivity draw largely on analogies with other transition metals. How realistic are such mechanistic assumptions? In the last few years a number of key compound classes have been discovered that can provide some answers. This Perspective attempts to summarise these developments, with particular emphasis on recently discovered gold(iii) complexes with bonds to hydrogen, oxygen, alkenes and CO ligands.
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Affiliation(s)
- Dragoş-Adrian Roşca
- School of Chemistry , University of East Anglia , Norwich , NR4 7TJ , UK . ; Tel: +44 (0)16035 92044
- Max-Planck-Institut für Kohlenforschung , D-45470 Mülheim/Ruhr , Germany
| | - Joseph A. Wright
- School of Chemistry , University of East Anglia , Norwich , NR4 7TJ , UK . ; Tel: +44 (0)16035 92044
| | - Manfred Bochmann
- School of Chemistry , University of East Anglia , Norwich , NR4 7TJ , UK . ; Tel: +44 (0)16035 92044
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40
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Click-tailed coumarins with potent and selective inhibitory action against the tumor-associated carbonic anhydrases IX and XII. Bioorg Med Chem 2015; 23:6955-66. [DOI: 10.1016/j.bmc.2015.09.041] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2015] [Revised: 09/24/2015] [Accepted: 09/25/2015] [Indexed: 01/19/2023]
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41
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Pandey KK, Vishwakarma R, Bariya PK. Quantum chemical insight into C–H⋯F bonding interactions between noncovalently bonded ion-pairs in N-heterocyclic carbene complexes of gold(I) [(NHC*)2Au]+[PF6]−and gold(III) [(NHC*)2AuCl2]+[PF6]−. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.11.028] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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42
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Romanov A, Bochmann M. Gold(I) and Gold(III) Complexes of Cyclic (Alkyl)(amino)carbenes. Organometallics 2015; 34:2439-2454. [PMID: 26146436 PMCID: PMC4482412 DOI: 10.1021/om501211p] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2014] [Indexed: 12/26/2022]
Abstract
The chemistry of Au(I) complexes with two types of cyclic (alkyl)(amino)carbene (CAAC) ligands has been explored, using the sterically less demanding dimethyl derivative Me2CAAC and the 2-adamantyl ligand AdCAAC. The conversion of (AdCAAC)AuCl into (AdCAAC)AuOH by treatment with KOH is significantly accelerated by the addition of tBuOH. (AdCAAC)AuOH is a convenient starting material for the high-yield syntheses of (AdCAAC)AuX complexes by acid/base and C-H activation reactions (X = OAryl, CF3CO2, N(Tf)2, C2Ph, C6F5, C6HF4, C6H2F3, CH2C(O)C6H4OMe, CH(Ph)C(O)Ph, CH2SO2Ph), while the cationic complexes [(AdCAAC)AuL]+ (L = CO, CN t Bu) and (AdCAAC)AuCN were obtained by chloride substitution from (AdCAAC)AuCl. The reactivity toward variously substituted fluoroarenes suggests that (AdCAAC)AuOH is able to react with C-H bonds with pKa values lower than about 31.5. This, together with the spectroscopic data, confirm the somewhat stronger electron-donor properties of CAAC ligands in comparison to imidazolylidene-type N-heterocyclic carbenes (NHCs). In spite of this, the oxidation of Me2CAAC and AdCAAC gold compounds is much less facile. Oxidations proceed with C-Au cleavage by halogens unless light is strictly excluded. The oxidation of (AdCAAC)AuCl with PhICl2 in the dark gives near-quantitative yields of (AdCAAC)AuCl3, while [Au(Me2CAAC)2]Cl leads to trans-[AuCl2(Me2CAAC)2]Cl. In contrast to the chemistry of imidazolylidene-type gold NHC complexes, oxidation products containing Au-Br or Au-I bonds could not be obtained; whereas the reaction with CsBr3 cleaves the Au-C bond to give mixtures of [AdCAAC-Br]+[AuBr2]- and [(AdCAAC-Br)]+ [AuBr4]-, the oxidation of (AdCAAC)AuI with I2 leads to the adduct (AdCAAC)AuI·I2. Irrespective of the steric demands of the CAAC ligands, their gold complexes proved more resistant to oxidation and more prone to halogen cleavage of the Au-C bonds than gold(I) complexes of imidazole-based NHC ligands.
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Affiliation(s)
| | - Manfred Bochmann
- School
of Chemistry, University of East Anglia, Norwich NR4 7TJ, U.K.
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43
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Shang XS, Li NT, Siyang HX, Liu PN. Palladium-Catalyzed Tandem Carbene Migratory Insertion and Intramolecular Cyclization: Synthesis of Chromeno[4,3-b]chromene Compounds. J Org Chem 2015; 80:4808-15. [DOI: 10.1021/acs.joc.5b00500] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xue Song Shang
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China 200237
| | - Nian Tai Li
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China 200237
| | - Hai Xiao Siyang
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China 200237
| | - Pei Nian Liu
- Shanghai Key Laboratory of
Functional Materials Chemistry, Key Lab for Advanced Materials and
Institute of Fine Chemicals, East China University of Science and Technology, Meilong Road 130, Shanghai, China 200237
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44
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Shaw AJM, Corbo R, Wilson DJD, Dutton JL. A 2,2′-bipyridine coordination complex of [ICl2]+. Dalton Trans 2015; 44:15083-7. [DOI: 10.1039/c4dt03549f] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A straightforward synthesis of a new type of iodine(iii) complex is presented – anN′Nchelated [ICl2]+cation.
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Affiliation(s)
- Andrew J. M. Shaw
- Department of Chemistry
- La Trobe Institute for Molecular Science
- La Trobe University
- Melbourne
- Australia
| | - Robert Corbo
- Department of Chemistry
- La Trobe Institute for Molecular Science
- La Trobe University
- Melbourne
- Australia
| | - David J. D. Wilson
- Department of Chemistry
- La Trobe Institute for Molecular Science
- La Trobe University
- Melbourne
- Australia
| | - Jason L. Dutton
- Department of Chemistry
- La Trobe Institute for Molecular Science
- La Trobe University
- Melbourne
- Australia
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45
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Corbo R, Pell TP, Stringer BD, Hogan CF, Wilson DJD, Barnard PJ, Dutton JL. Facile Formation of Homoleptic Au(III) Trications via Simultaneous Oxidation and Ligand Delivery from [PhI(pyridine)2]2+. J Am Chem Soc 2014; 136:12415-21. [DOI: 10.1021/ja506365m] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Robert Corbo
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Thomas P. Pell
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Bradley D. Stringer
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Conor F. Hogan
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - David J. D. Wilson
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Peter J. Barnard
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
| | - Jason L. Dutton
- Department
of Chemistry,
La Trobe Institute for Molecular Science, La Trobe University, Melbourne, Victoria 3086, Australia
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46
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Jacques B, Hueber D, Hameury S, Braunstein P, Pale P, Blanc A, de Frémont P. Synthesis, Characterization, and Catalytic Activity of Alcohol-Functionalized NHC Gold(I/III) Complexes. Organometallics 2014. [DOI: 10.1021/om500240h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Béatrice Jacques
- Laboratoire de Chimie de Coordination, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Damien Hueber
- Laboratoire de Synthèse,
Réactivité Organique et Catalyse, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Sophie Hameury
- Laboratoire de Chimie de Coordination, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Pierre Braunstein
- Laboratoire de Chimie de Coordination, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Patrick Pale
- Laboratoire de Synthèse,
Réactivité Organique et Catalyse, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Aurélien Blanc
- Laboratoire de Synthèse,
Réactivité Organique et Catalyse, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Pierre de Frémont
- Laboratoire de Chimie de Coordination, Institut de Chimie
(UMR 7177 CNRS), Université de Strasbourg, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
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48
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49
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Kriechbaum M, Otte D, List M, Monkowius U. Facile oxidation of NHC-Au(i) to NHC-Au(iii) complexes by CsBr3. Dalton Trans 2014; 43:8781-91. [DOI: 10.1039/c4dt00695j] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
CsBr3was investigated as a new and convenient oxidant for NHC-Au(i) complexes for the preparation of the respective Au(iii) complexes.
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Affiliation(s)
- Margit Kriechbaum
- Institute of Inorganic Chemistry
- Johannes Kepler University Linz
- 4040 Linz, Austria
| | - Daniela Otte
- Institute of Inorganic Chemistry
- Johannes Kepler University Linz
- 4040 Linz, Austria
| | - Manuela List
- Institute for Chemical Technology of Organic Materials
- Johannes Kepler University Linz
- 4040 Linz, Austria
| | - Uwe Monkowius
- Institute of Inorganic Chemistry
- Johannes Kepler University Linz
- 4040 Linz, Austria
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50
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Tomás-Mendivil E, Toullec PY, Borge J, Conejero S, Michelet V, Cadierno V. Water-Soluble Gold(I) and Gold(III) Complexes with Sulfonated N-Heterocyclic Carbene Ligands: Synthesis, Characterization, and Application in the Catalytic Cycloisomerization of γ-Alkynoic Acids into Enol-Lactones. ACS Catal 2013. [DOI: 10.1021/cs4009144] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Eder Tomás-Mendivil
- Laboratorio de Compuestos Organometálicos y
Catálisis (Unidad Asociada al CSIC), Departamento
de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica
“Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Patrick Y. Toullec
- ChimieParisTech, Laboratoire Charles Friedel, ENSCP, UMR 7223, 11 rue P. et M. Curie, F-75231 Paris Cedex 05, France
| | - Javier Borge
- Departamento
de Química Física y Analítica, Facultad
de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
| | - Salvador Conejero
- Departamento de Química Inorgánica, Instituto de Investigaciones Químicas (IIQ), CSIC, Universidad de Sevilla, Avda. Américo Vespucio 49, E-41092 Sevilla, Spain
| | - Véronique Michelet
- ChimieParisTech, Laboratoire Charles Friedel, ENSCP, UMR 7223, 11 rue P. et M. Curie, F-75231 Paris Cedex 05, France
| | - Victorio Cadierno
- Laboratorio de Compuestos Organometálicos y
Catálisis (Unidad Asociada al CSIC), Departamento
de Química Orgánica e Inorgánica, Instituto Universitario de Química Organometálica
“Enrique Moles”, Facultad de Química, Universidad de Oviedo, Julián Clavería 8, E-33006 Oviedo, Spain
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