1
|
Zheng Y, Jiang J, Li Y, Wei Y, Zhang J, Hu J, Ke Z, Xu X, Zhang L. Reactivities of α-Oxo BMIDA Gold Carbenes Generated by Gold-Catalyzed Oxidation of BMIDA-Terminated Alkynes. Angew Chem Int Ed Engl 2023; 62:e202218175. [PMID: 36806835 PMCID: PMC10079581 DOI: 10.1002/anie.202218175] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 02/17/2023] [Accepted: 02/20/2023] [Indexed: 02/22/2023]
Abstract
An oxidative strategy is reported to access α-oxo BMIDA gold carbenes directly from BMIDA-terminated alkynes. Besides offering expedient access to seldom studied boryl metal carbenes, these BMIDA gold carbene species undergo facile insertions into methyl, methylene, methine, and benzylic C-H bonds in the absence of the Thorpe-Ingold effect. They also undergo efficient OH insertion, cyclopropanation, and F-C alkylations. This chemistry provides rapid access to structurally diverse α-BMIDA ketones, which are scarcely documented. In combination with DFT studies, the role of BMIDA is established to be an electron-donating group that attenuates the high electrophilicity of the gold carbene center.
Collapse
Affiliation(s)
- Yang Zheng
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Jingxing Jiang
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Yue Li
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Yongliang Wei
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Junqi Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| | - Jundie Hu
- School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215009, P. R. China
| | - Zhuofeng Ke
- School of Materials Science & Engineering, PCFM Lab, Sun Yat-sen University, Guangzhou, 510275, P. R. China
| | - Xinfang Xu
- School of Pharmaceutical Sciences, Sun Yat-sen University, Guangzhou, 510006, P. R. China
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California, Santa Barbara, CA, 93106, USA
| |
Collapse
|
2
|
Mishra S, Urvashi, Patil NT. Chiral Ligands for Au(I), Au(III), and Au(I)/Au(III) Redox Catalysis. Isr J Chem 2022. [DOI: 10.1002/ijch.202200039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sampoorna Mishra
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Urvashi
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Nitin T. Patil
- Sampoorna Mishra Urvashi and Nitin T. Patil Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| |
Collapse
|
3
|
Witzel S, Hoffmann M, Rudolph M, Rominger F, Dreuw A, Hashmi ASK. A Radical Chain: Mononuclear “Gold Only” Photocatalysis. Adv Synth Catal 2021. [DOI: 10.1002/adsc.202101113] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Sina Witzel
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Marvin Hoffmann
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR) Heidelberg University Im Neuenheimer Feld 205A 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
| | - Andreas Dreuw
- Interdisziplinäres Zentrum für Wissenschaftliches Rechnen (IWR) Heidelberg University Im Neuenheimer Feld 205A 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| |
Collapse
|
4
|
Font P, Ribas X. Fundamental Basis for Implementing Oxidant‐Free Au(I)/Au(III) Catalysis. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100301] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Pau Font
- QBIS-CAT group Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi Girona 17003 Catalonia Spain
| | - Xavi Ribas
- QBIS-CAT group Institut de Química Computacional i Catàlisi (IQCC) Departament de Química Universitat de Girona Campus Montilivi Girona 17003 Catalonia Spain
| |
Collapse
|
5
|
Tyler JL, Noble A, Aggarwal VK. Strain-Release Driven Spirocyclization of Azabicyclo[1.1.0]butyl Ketones. Angew Chem Int Ed Engl 2021; 60:11824-11829. [PMID: 33754432 PMCID: PMC8251566 DOI: 10.1002/anie.202102754] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Indexed: 12/16/2022]
Abstract
Due to their intrinsic rigidity, three-dimensionality and structural novelty, spirocyclic molecules have become increasingly sought-after moieties in drug discovery. Herein, we report a strain-release driven synthesis of azetidine-containing spirocycles by harnessing the inherent ring strain of the azabicyclo[1.1.0]butane (ABB) fragment. Novel ABB-ketone precursors bearing silyl-protected alcohols were synthesized in a single step and shown to engage in electrophile-induced spirocyclization-desilylation reactions. Primary, secondary and tertiary silyl ethers were effectively transformed into a library of new spiro-azetidines, with a range of substituents and ring sizes. In addition, the products are generated with synthetically useful ketone and protected-amine functional groups, which provides the potential for further elaboration and for this chemistry to be utilized in the rapid assembly of medicinally relevant compounds.
Collapse
Affiliation(s)
- Jasper L. Tyler
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | - Adam Noble
- School of ChemistryUniversity of BristolCantock's CloseBristolBS8 1TSUK
| | | |
Collapse
|
6
|
Malmberg R, von Arx T, Hasan M, Blacque O, Shukla A, McGregor SKM, Lo SC, Namdas EB, Venkatesan K. Tunable Light-Emission Properties of Solution-Processable N-Heterocyclic Carbene Cyclometalated Gold(III) Complexes for Organic Light-Emitting Diodes. Chemistry 2021; 27:7265-7274. [PMID: 33527569 DOI: 10.1002/chem.202100215] [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: 01/20/2021] [Indexed: 11/08/2022]
Abstract
N-Heterocyclic carbene (NHC) cyclometalated gold(III) complexes remain very scarce and therefore their photophysical properties remain currently underexplored. Moreover, gold(III) complexes emitting in the blue region of the electromagnetic spectrum are rare. In this work, a series of four phosphorescent gold(III) complexes was investigated bearing four different NHC monocyclometalated (C^C*)-type ligands and a dianionic (N^N)-type ancillary ligand ((N^N)=5,5'-(propane-2,2-diyl)bis(3-(trifluoromethyl)-1 H-pyrazole) (mepzH2 )). The complexes exhibit strong phosphorescence when doped in poly(methyl methacrylate) (PMMA) at room temperature, which were systematically tuned from sky-blue [λPL =456 nm, CIE coordinates: (0.20, 034)] to green [λPL =516 nm, CIE coordinates: (0.31, 0.54)] by varying the monocyclometalated (C^C*) ligand framework. The complexes revealed high quantum efficiencies (ϕPL ) of up to 43 % and excited-state lifetimes (τ0 ) between 15-266 μs. The radiative rate constant values found for these complexes (kr =103 -104 s-1 ) are the highest found in comparison to previously known best-performing monocyclometalated gold(III) complexes. Density functional theory (DFT) and time-dependent DFT (TD-DFT) calculations of these complexes further lend support to the excited-state nature of these complexes. The calculations showed a significant contribution of the gold(III) metal center in the lowest unoccupied molecular orbitals (LUMOs) of up to 18 %, which was found to be unique for this class of cyclometalated gold(III) complexes. Additionally, organic light-emitting diodes (OLEDs) were fabricated by using a solution process to provide the first insight into the electroluminescent (EL) properties of this new class of gold(III) complexes.
Collapse
Affiliation(s)
- Robert Malmberg
- Department of Molecular Sciences, Macquarie University, Sydney, NSW, 2109, Australia
| | - Tobias von Arx
- Department of Molecular Sciences, Macquarie University, Sydney, NSW, 2109, Australia.,Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Monirul Hasan
- Centre for Organic Photonics and Electronics, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Olivier Blacque
- Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| | - Atul Shukla
- Centre for Organic Photonics and Electronics, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Sarah K M McGregor
- Centre for Organic Photonics and Electronics, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Shih-Chun Lo
- Centre for Organic Photonics and Electronics, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Ebinazar B Namdas
- Centre for Organic Photonics and Electronics, The University of Queensland, Brisbane, QLD, 4072, Australia.,School of Mathematics and Physics, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Koushik Venkatesan
- Department of Molecular Sciences, Macquarie University, Sydney, NSW, 2109, Australia.,MQ Photonics Research Centre, MQ Sustainable Research Centre, Macquarie University, Sydney, NSW, 2109, Australia.,Department of Chemistry, University of Zurich, Winterthurerstrasse 190, 8057, Zurich, Switzerland
| |
Collapse
|
7
|
Tyler JL, Noble A, Aggarwal VK. Strain‐Release Driven Spirocyclization of Azabicyclo[1.1.0]butyl Ketones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202102754] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Jasper L. Tyler
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | - Adam Noble
- School of Chemistry University of Bristol Cantock's Close Bristol BS8 1TS UK
| | | |
Collapse
|
8
|
Zumbrunn C, Krüsi D, Stamm C, Caspers P, Ritz D, Rueedi G. Synthesis and Structure-Activity Relationship of Xenocoumacin 1 and Analogues as Inhibitors of Ribosomal Protein Synthesis. ChemMedChem 2020; 16:891-897. [PMID: 33236408 DOI: 10.1002/cmdc.202000793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Indexed: 11/08/2022]
Abstract
Ribosomal protein synthesis is an important target in antibacterial drug discovery. Numerous natural products have served as starting points for the development of antibiotics. We report here the total synthesis of xenocoumacin 1, a natural product that binds to 16S ribosomal RNA at a highly conserved region, as well as analogues thereof. Preliminary structure-activity relationship studies were aimed at understanding and modulating the selectivity between eukaryotic and prokaryotic ribosomes. Modifications were mainly tolerated in the aromatic region. Whole-cell activity against Gram-negative bacteria is limited by efflux and penetration, as demonstrated in genetically modified strains of E. coli. Analogues with high selectivity for eukaryotic ribosomes were identified, but it was not possible to obtain inhibitors selective for bacterial protein synthesis. Achieving high selectivity (albeit not the desired one) was thus possible despite the high homology between eukaryotic and prokaryotic ribosomes in the binding region.
Collapse
Affiliation(s)
- Cornelia Zumbrunn
- Idorsia Pharmaceuticals Ltd., Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| | - Daniela Krüsi
- Idorsia Pharmaceuticals Ltd., Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| | - Christina Stamm
- Idorsia Pharmaceuticals Ltd., Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| | - Patrick Caspers
- Idorsia Pharmaceuticals Ltd., Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| | - Daniel Ritz
- Idorsia Pharmaceuticals Ltd., Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| | - Georg Rueedi
- Idorsia Pharmaceuticals Ltd., Hegenheimermattweg 91, 4123, Allschwil, Switzerland
| |
Collapse
|
9
|
Hao S, Ye X, Zhao M, Hu J, Wang N, Li J, Wang F, Zhang M, Wu Z. Synthesis of 2‐Aryl‐2‐hydroxyethyl Dithiocarbamates via Regioselective Addition of Tetraalkylthiuram Disulfides to Styrenes under Transition‐Metal‐Free Conditions. Adv Synth Catal 2020. [DOI: 10.1002/adsc.202000729] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Shuai Hao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Xiefeng Ye
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Mingqin Zhao
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Jingyan Hu
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Na Wang
- Technology Center China Tobacco Hubei Industrial Co., Ltd. Wuhan 430040 Hubei People's Republic of China
| | - Jing Li
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Fangling Wang
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Mingyue Zhang
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| | - Zhiyong Wu
- Flavors and Fragrance Engineering & Technology Research Center of Henan Province College of Tobacco Science Henan Agricultural University Zhengzhou 450002 People's Republic of China
| |
Collapse
|
10
|
Fricke C, Reid WB, Schoenebeck F. A Review on Oxidative Gold‐Catalyzed C‐H Arylation of Arenes – Challenges and Opportunities. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000856] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Christoph Fricke
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - William B. Reid
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry RWTH Aachen University Landoltweg 1 52074 Aachen Germany
| |
Collapse
|
11
|
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
| |
Collapse
|
12
|
Gold(I)/Gold(III) Catalysis that Merges Oxidative Addition and π‐Alkene Activation. Angew Chem Int Ed Engl 2020; 59:16625-16630. [DOI: 10.1002/anie.202006074] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/19/2020] [Indexed: 01/12/2023]
|
13
|
Rigoulet M, Thillaye du Boullay O, Amgoune A, Bourissou D. Gold(I)/Gold(III) Catalysis that Merges Oxidative Addition and π‐Alkene Activation. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202006074] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Mathilde Rigoulet
- CNRS/Université Toulouse III—Paul SabatierLaboratoire, Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Olivier Thillaye du Boullay
- CNRS/Université Toulouse III—Paul SabatierLaboratoire, Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Abderrahmane Amgoune
- CNRS/Université Toulouse III—Paul SabatierLaboratoire, Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| | - Didier Bourissou
- CNRS/Université Toulouse III—Paul SabatierLaboratoire, Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069) 118 Route de Narbonne 31062 Toulouse Cedex 09 France
| |
Collapse
|
14
|
Kreuzahler M, Haberhauer G. Gold(I)-Catalyzed Haloalkynylation of Aryl Alkynes: Two Pathways, One Goal. Angew Chem Int Ed Engl 2020; 59:9433-9437. [PMID: 32078231 PMCID: PMC7318269 DOI: 10.1002/anie.201916027] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Revised: 01/29/2020] [Indexed: 11/29/2022]
Abstract
Haloalkynylation reactions provide an efficient method for the simultaneous introduction of a halogen atom and an acetylenic unit. For the first time, we report a gold(I)‐catalyzed haloalkynylation of aryl alkynes that delivers exclusively the cis addition product. This method enables the simple synthesis of conjugated and halogenated enynes in yields of up to 90 %. Notably, quantum chemical calculations reveal an exceptional interplay between the place of the attack at the chloroacetylene: No matter which C−C bond is formed, the same enyne product is always formed. This is only possible through rearrangement of the corresponding skeleton. Hereby, one reaction pathway proceeds via a chloronium ion with a subsequent aryl shift; in the second case the corresponding vinyl cation is stabilized by a 1,3‐chlorine shift. 13C‐labeling experiments confirmed that the reaction proceeds through both reaction pathways.
Collapse
Affiliation(s)
- Mathis Kreuzahler
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstraße 7, 45117, Essen, Germany
| | - Gebhard Haberhauer
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstraße 7, 45117, Essen, Germany
| |
Collapse
|
15
|
Chintawar CC, Yadav AK, Patil NT. Gold‐Catalyzed 1,2‐Diarylation of Alkenes. Angew Chem Int Ed Engl 2020; 59:11808-11813. [DOI: 10.1002/anie.202002141] [Citation(s) in RCA: 51] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Indexed: 11/10/2022]
Affiliation(s)
- Chetan C. Chintawar
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Amit K. Yadav
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Nitin T. Patil
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| |
Collapse
|
16
|
Affiliation(s)
- Chetan C. Chintawar
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Amit K. Yadav
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| | - Nitin T. Patil
- Department of Chemistry Indian Institute of Science Education and Research Bhopal Bhauri Bhopal 462 066 India
| |
Collapse
|
17
|
Kreuzahler M, Haberhauer G. Gold(I)‐katalysierte Haloalkinylierung von Arylalkinen: Zwei Wege, ein Ziel. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916027] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Mathis Kreuzahler
- Institut für Organische ChemieUniversität Duisburg-Essen Universitätsstraße 7 45117 Essen Deutschland
| | - Gebhard Haberhauer
- Institut für Organische ChemieUniversität Duisburg-Essen Universitätsstraße 7 45117 Essen Deutschland
| |
Collapse
|
18
|
Skaria M, More SA, Kuo T, Cheng M, Liu R. Gold‐Catalyzed Iminations of Terminal Propargyl Alcohols with Anthranils with Atypical Chemoselectivity for C(1)‐Additions and 1,2‐Carbon Migration. Chemistry 2020; 26:3600-3608. [DOI: 10.1002/chem.201905283] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/16/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Manisha Skaria
- Frontier Research Centers of Fundamental and Applied Science of MatterDepartment of ChemistryNational Tsing-Hua University Hsinchu 30013 Taiwan
| | - Sayaji Arjun More
- Frontier Research Centers of Fundamental and Applied Science of MatterDepartment of ChemistryNational Tsing-Hua University Hsinchu 30013 Taiwan
| | - Tung‐Chun Kuo
- Department of ChemistryNational Cheng Kung University Tainan 701 Taiwan
| | - Mu‐Jeng Cheng
- Department of ChemistryNational Cheng Kung University Tainan 701 Taiwan
| | - Rai‐Shung Liu
- Frontier Research Centers of Fundamental and Applied Science of MatterDepartment of ChemistryNational Tsing-Hua University Hsinchu 30013 Taiwan
| |
Collapse
|
19
|
Wang Q, Hoffmann S, Schießl J, Rudolph M, Rominger F, Hashmi ASK. A Gold‐Catalyzed Acid‐Assisted Regioselective Cyclization for the Synthesis of Polysubstituted Oxazoles. European J Org Chem 2020. [DOI: 10.1002/ejoc.201900699] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Qian Wang
- Organisch‐Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Stephanie Hoffmann
- Organisch‐Chemisches Institut Heidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jasmin Schießl
- 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
| |
Collapse
|
20
|
Medina-Mercado I, Asomoza-Solís EO, Martínez-González E, Ugalde-Saldívar VM, Ledesma-Olvera LG, Barquera-Lozada JE, Gómez-Vidales V, Barroso-Flores J, Frontana-Uribe BA, Porcel S. Ascorbic Acid as an Aryl Radical Inducer in the Gold-Mediated Arylation of Indoles with Aryldiazonium Chlorides. Chemistry 2020; 26:634-642. [PMID: 31621965 DOI: 10.1002/chem.201904413] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Indexed: 12/22/2022]
Abstract
In recent years interest in the development of protocols that facilitate the oxidative addition of gold to access mild cross-coupling processes mediated by this metal has increased. In this context, we report herein that ascorbic acid, a natural and readily accessible antioxidant, can be used to accelerate the oxidative addition of aryldiazonium chlorides onto AuI . The aryl-AuIII species generated in this way, has been used to prepare 3-arylindoles in a one-pot protocol starting from anilines and para-, meta-, and ortho- substituted aryldiazonium chlorides. The mechanism underlying the oxidative addition has been examined in detail based on EPR analyses, cyclic voltammetry, and DFT calculations. Interestingly, we have found that in this protocol, the chloride atom induces the AuII /AuIII oxidation step.
Collapse
Affiliation(s)
- Ignacio Medina-Mercado
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México
| | - Eric Omar Asomoza-Solís
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México
| | - Eduardo Martínez-González
- Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Coyoacán, Cd. Mx., 04510, México
| | - Victor Manuel Ugalde-Saldívar
- Facultad de Química, Universidad Nacional Autónoma de México, Av. Universidad 3000, Coyoacán, Cd. Mx., 04510, México
| | - Lydia Gabriela Ledesma-Olvera
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México
| | - José Enrique Barquera-Lozada
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México
| | - Virginia Gómez-Vidales
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México
| | - Joaquín Barroso-Flores
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México.,Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, C.P. 50200, Toluca, Estado de México, México
| | - Bernardo A Frontana-Uribe
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México.,Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM, Carretera Toluca-Atlacomulco Km 14.5, C.P. 50200, Toluca, Estado de México, México
| | - Susana Porcel
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Cd. Mx., 04510, México
| |
Collapse
|
21
|
Nijamudheen A, Datta A. Gold-Catalyzed Cross-Coupling Reactions: An Overview of Design Strategies, Mechanistic Studies, and Applications. Chemistry 2019; 26:1442-1487. [PMID: 31657487 DOI: 10.1002/chem.201903377] [Citation(s) in RCA: 109] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 10/28/2019] [Indexed: 12/14/2022]
Abstract
Transition-metal-catalyzed cross-coupling reactions are central to many organic synthesis methodologies. Traditionally, Pd, Ni, Cu, and Fe catalysts are used to promote these reactions. Recently, many studies have showed that both homogeneous and heterogeneous Au catalysts can be used for activating selective cross-coupling reactions. Here, an overview of the past studies, current trends, and future directions in the field of gold-catalyzed coupling reactions is presented. Design strategies to accomplish selective homocoupling and cross-coupling reactions under both homogeneous and heterogeneous conditions, computational and experimental mechanistic studies, and their applications in diverse fields are critically reviewed. Specific topics covered are: oxidant-assisted and oxidant-free reactions; strain-assisted reactions; dual Au and photoredox catalysis; bimetallic synergistic reactions; mechanisms of reductive elimination processes; enzyme-mimicking Au chemistry; cluster and surface reactions; and plasmonic catalysis. In the relevant sections, theoretical and computational studies of AuI /AuIII chemistry are discussed and the predictions from the calculations are compared with the experimental observations to derive useful design strategies.
Collapse
Affiliation(s)
- A Nijamudheen
- School of Chemical Sciences, Indian Association for the, Cultivation of Sciences, 2A & 2B Raja S C Mullick Road, Kolkata, 700032, India.,Department of Chemical & Biomedical Engineering, Florida A&M University-Florida State University, Joint College of Engineering, 2525 Pottsdamer Street, Tallahassee, FL, 32310, USA
| | - Ayan Datta
- School of Chemical Sciences, Indian Association for the, Cultivation of Sciences, 2A & 2B Raja S C Mullick Road, Kolkata, 700032, India
| |
Collapse
|
22
|
Ye X, Zhao P, Zhang S, Zhang Y, Wang Q, Shan C, Wojtas L, Guo H, Chen H, Shi X. Facilitating Gold Redox Catalysis with Electrochemistry: An Efficient Chemical-Oxidant-Free Approach. Angew Chem Int Ed Engl 2019; 58:17226-17230. [PMID: 31407454 PMCID: PMC7137689 DOI: 10.1002/anie.201909082] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Indexed: 12/24/2022]
Abstract
Due to the high oxidation potential between AuI and AuIII , gold redox catalysis requires at least stoichiometric amounts of a strong oxidant. We herein report the first example of an electrochemical approach in promoting gold-catalyzed oxidative coupling of terminal alkynes. Oxidation of AuI to AuIII was successfully achieved through anode oxidation, which enabled facile access to either symmetrical or unsymmetrical conjugated diynes through homo-coupling or cross-coupling. This report extends the reaction scope of this transformation to substrates that are not compatible with strong chemical oxidants and potentiates the versatility of gold redox chemistry through the utilization of electrochemical oxidative conditions.
Collapse
Affiliation(s)
- Xiaohan Ye
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Pengyi Zhao
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Shuyao Zhang
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Yanbin Zhang
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Qilin Wang
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Chuan Shan
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Hao Guo
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Hao Chen
- Department of Chemistry and Environmental Science, New Jersey Institute of Technology, Newark, NJ, 07102, USA
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| |
Collapse
|
23
|
Mohanty A, Roy S. Nickel(II)-Catalysed C-H Functionalization and Tandem Coupling of Terminal Alkynes with 1,3-Dicarbonyls: Expedient Route to Functionalized Furans. European J Org Chem 2019. [DOI: 10.1002/ejoc.201901309] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Anuradha Mohanty
- School of Basic Sciences; Indian Institute of Technology Bhubaneswar; Argul, Khurda 752050 Odisha India
| | - Sujit Roy
- School of Basic Sciences; Indian Institute of Technology Bhubaneswar; Argul, Khurda 752050 Odisha India
| |
Collapse
|
24
|
Ye X, Zhao P, Zhang S, Zhang Y, Wang Q, Shan C, Wojtas L, Guo H, Chen H, Shi X. Facilitating Gold Redox Catalysis with Electrochemistry: An Efficient Chemical‐Oxidant‐Free Approach. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909082] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Xiaohan Ye
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Pengyi Zhao
- Department of Chemistry and Environmental Science New Jersey Institute of Technology Newark NJ 07102 USA
| | - Shuyao Zhang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Yanbin Zhang
- Department of Chemistry Fudan University Shanghai 200438 China
| | - Qilin Wang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Chuan Shan
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Hao Guo
- Department of Chemistry Fudan University Shanghai 200438 China
| | - Hao Chen
- Department of Chemistry and Environmental Science New Jersey Institute of Technology Newark NJ 07102 USA
| | - Xiaodong Shi
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| |
Collapse
|
25
|
Zheng Y, Zhang J, Cheng X, Xu X, Zhang L. Wolff Rearrangement of Oxidatively Generated α-Oxo Gold Carbenes: An Effective Approach to Silylketenes. Angew Chem Int Ed Engl 2019; 58:5241-5245. [PMID: 30785666 PMCID: PMC6564687 DOI: 10.1002/anie.201814018] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Indexed: 12/21/2022]
Abstract
Gold-catalyzed oxidations of alkynes by N-oxides offer direct access to reactive α-oxo gold carbene intermediates from benign and readily available alkynes instead of hazardous diazo carbonyl compounds. Despite various versatile synthetic methods developed based on this strategy, one of the hallmarks of α-oxo carbene/carbenoid chemistry, that is, the Wolff rearrangement, has not been realized in this context. This study discloses the first examples that show the Wolff rearrangement can be readily realized by α-oxo gold carbenes oxidatively generated from TBS-terminated alkynes (TBS=tert-butyldimethylsilyl). The thus-generated silylketenes can be either isolated pure or subsequently trapped by various internal or external nucleophiles in one pot to afford α-silylated carboxylic acids, their derivatives, or TBS-substituted allenes.
Collapse
Affiliation(s)
- Yang Zheng
- Department of Chemistry and Biochemistry, University of California Santa Barbara, CA 93106, USA
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123 (P.R. China)
| | - Junqi Zhang
- Department of Chemistry and Biochemistry, University of California Santa Barbara, CA 93106, USA
| | - Xinpeng Cheng
- Department of Chemistry and Biochemistry, University of California Santa Barbara, CA 93106, USA
| | - Xinfang Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science Soochow University, Suzhou 215123 (P.R. China)
| | - Liming Zhang
- Department of Chemistry and Biochemistry, University of California Santa Barbara, CA 93106, USA
| |
Collapse
|
26
|
Allegue D, González J, Fernández S, Santamaría J, Ballesteros A. Regiodivergent Control in the Gold(I) Catalyzed Synthesis of 7-Pyrazolylindoles from 1-Propargyl-1H
-benzotriazoles and Ynamides through α-Imino Gold(I) Carbene Complexes. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201801484] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Darío Allegue
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Jairo González
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Sergio Fernández
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Javier Santamaría
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| | - Alfredo Ballesteros
- Instituto Universitario de Química Organometálica “Enrique Moles”; Departamento de Química Orgánica e Inorgánica Universidad de Oviedo; c/ Julián Clavería 8 33007 Oviedo Spain
| |
Collapse
|
27
|
Kristensen SK, Laursen SLR, Taarning E, Skrydstrup T. Ex Situ Formation of Methanethiol: Application in the Gold(I)‐Promoted Anti‐Markovnikov Hydrothiolation of Olefins. Angew Chem Int Ed Engl 2018; 57:13887-13891. [DOI: 10.1002/anie.201809051] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 12/12/2022]
Affiliation(s)
- Steffan K. Kristensen
- Carbon Dioxide Activation Center (CADIAC)Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO)Aarhus University Gustav Wieds vej 14 8000 Aarhus C Denmark
| | - Simon L. R. Laursen
- Carbon Dioxide Activation Center (CADIAC)Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO)Aarhus University Gustav Wieds vej 14 8000 Aarhus C Denmark
| | - Esben Taarning
- Haldor Topsøe A/SSustainable Chemicals R&D Haldor Topsøes Allé 1 2800 Kgs. Lyngby Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC)Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO)Aarhus University Gustav Wieds vej 14 8000 Aarhus C Denmark
| |
Collapse
|
28
|
Kristensen SK, Laursen SLR, Taarning E, Skrydstrup T. Ex Situ Formation of Methanethiol: Application in the Gold(I)‐Promoted Anti‐Markovnikov Hydrothiolation of Olefins. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201809051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Steffan K. Kristensen
- Carbon Dioxide Activation Center (CADIAC)Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO)Aarhus University Gustav Wieds vej 14 8000 Aarhus C Denmark
| | - Simon L. R. Laursen
- Carbon Dioxide Activation Center (CADIAC)Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO)Aarhus University Gustav Wieds vej 14 8000 Aarhus C Denmark
| | - Esben Taarning
- Haldor Topsøe A/SSustainable Chemicals R&D Haldor Topsøes Allé 1 2800 Kgs. Lyngby Denmark
| | - Troels Skrydstrup
- Carbon Dioxide Activation Center (CADIAC)Department of Chemistry and the Interdisciplinary Nanoscience Center (iNANO)Aarhus University Gustav Wieds vej 14 8000 Aarhus C Denmark
| |
Collapse
|
29
|
Bhattacharjee R, Datta A. Understanding Thermal and Photochemical Aryl-Aryl Cross-Coupling by the AuI
/AuIII
Redox Couple. Chemistry 2018; 24:13636-13646. [PMID: 29979474 DOI: 10.1002/chem.201802634] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/25/2018] [Indexed: 12/31/2022]
Affiliation(s)
- Rameswar Bhattacharjee
- Department of Spectroscopy; Indian Association for the, Cultivation of Science; Jadavpur 700032 West Bengal India
| | - Ayan Datta
- Department of Spectroscopy; Indian Association for the, Cultivation of Science; Jadavpur 700032 West Bengal India
| |
Collapse
|
30
|
Wang J, Zhang S, Wojtas L, Shi X. Highly Efficient and Stereoselective Thioallylation of Alkynes: Possible Gold Redox Catalysis with No Need for a Strong Oxidant. Angew Chem Int Ed Engl 2018; 57:6915-6920. [PMID: 29663659 PMCID: PMC6121218 DOI: 10.1002/anie.201802540] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Indexed: 11/07/2022]
Abstract
Stereoselective thioallylation of alkynes under possible gold redox catalysis was accomplished with high efficiency (as low as 0.1 % catalyst loading, up to 99 % yield) and broad substrate scope (various alkynes, inter- and intramolecular fashion). The gold(I) catalyst acts as both a π-acid for alkyne activation and a redox catalyst for AuI/III coupling, whereas the sulfonium cation generated in situ functions as a mild oxidant. This novel methodology provides an exciting system for gold redox catalysis without the need for a strong oxidant.
Collapse
Affiliation(s)
- Jin Wang
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| | - Shuyao Zhang
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida Tampa, FL 33620 (USA)
| |
Collapse
|
31
|
Wang J, Zhang S, Xu C, Wojtas L, Akhmedov NG, Chen H, Shi X. Highly Efficient and Stereoselective Thioallylation of Alkynes: Possible Gold Redox Catalysis with No Need for a Strong Oxidant. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802540] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Jin Wang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Shuyao Zhang
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Chang Xu
- Department of Chemistry and Biochemistry Ohio University Athens OH 45791 USA
| | - Lukasz Wojtas
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| | - Novruz G. Akhmedov
- C. Eugene Bennett Department of Chemistry West Virginia University Morgantown WV 26506 USA
| | - Hao Chen
- Department of Chemistry and Biochemistry Ohio University Athens OH 45791 USA
| | - Xiaodong Shi
- Department of Chemistry University of South Florida Tampa FL 33620 USA
| |
Collapse
|
32
|
Lu M, Su Y, Zhao P, Ye X, Cai Y, Shi X, Masson E, Li F, Campbell JL, Chen H. Direct Evidence for the Origin of Bis-Gold Intermediates: Probing Gold Catalysis with Mass Spectrometry. Chemistry 2018; 24:2144-2150. [PMID: 29131927 PMCID: PMC6139295 DOI: 10.1002/chem.201703666] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Indexed: 11/11/2022]
Abstract
Gold-catalyzed alkyne hydration was studied by using in situ reacting mass spectrometry (MS) technology. By monitoring the reaction process in solution under different conditions (regular and very diluted catalyst concentrations, different pH values) and examining the reaction occurrence in the early reaction stage (1-2 ms after mixing) with MS, we collected a series of experimental evidence to support that the bis-gold complex is a potential key reaction intermediate. Furthermore, both experimental and computational studies confirmed that the σ,π-bis-gold complexes are not active intermediates toward nucleophilic addition. Instead, formation of geminally diaurated complex C is crucial for this catalytic process.
Collapse
Affiliation(s)
- Mei Lu
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry & Edison Institute of Biology, Ohio University, Athens, OH, 45701, USA
| | - Yijin Su
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Pengyi Zhao
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry & Edison Institute of Biology, Ohio University, Athens, OH, 45701, USA
| | - Xiaohan Ye
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Yi Cai
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry & Edison Institute of Biology, Ohio University, Athens, OH, 45701, USA
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Eric Masson
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry & Edison Institute of Biology, Ohio University, Athens, OH, 45701, USA
| | - Fengyao Li
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry & Edison Institute of Biology, Ohio University, Athens, OH, 45701, USA
| | - J Larry Campbell
- AB Sciex, 71 Four Valley Drive, Concord, Ontario, L4K 4V8, Canada
| | - Hao Chen
- Center for Intelligent Chemical Instrumentation, Department of Chemistry and Biochemistry & Edison Institute of Biology, Ohio University, Athens, OH, 45701, USA
| |
Collapse
|
33
|
Chen C, Chen X, Zhang X, Wang S, Rao W, Chan PWH. Gold‐Catalyzed Dehydrogenative Cycloisomerization of 1,4‐Enyne Esters to 3,5‐Disubstituted Phenol Derivatives. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201701068] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Cuili Chen
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xianxiao Chen
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Xiaoxiang Zhang
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Shifa Wang
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Weidong Rao
- Jiangsu Key Laboratory of Biomass-based Green Fuels and Chemicals, College of Chemical Engineering Nanjing Forestry University Nanjing 210037 People's Republic of China
| | - Philip Wai Hong Chan
- School of Chemistry Monash University Clayton, Victoria 3800 Australia
- Department of Chemistry University of Warwick Coventry CV4 7AL U.K
| |
Collapse
|
34
|
Nie Q, Yi F, Huang B, Cai M. Efficient Heterogeneous Gold(I)-Catalyzed Direct C(sp
2
)-C(sp
) Bond Functionalization of Arylalkynes through a Nitrogenation Process to Amides. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700783] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Quan Nie
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Feiyan Yi
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Bin Huang
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University; Nanchang 330022 People's Republic of China
| | - Mingzhong Cai
- Key Laboratory of Functional Small Organic Molecule; Ministry of Education and College of Chemistry & Chemical Engineering, Jiangxi Normal University; Nanchang 330022 People's Republic of China
| |
Collapse
|
35
|
Kumar R, Krieger JP, Gómez-Bengoa E, Fox T, Linden A, Nevado C. The First Gold(III) Formate: Evidence for β-Hydride Elimination. Angew Chem Int Ed Engl 2017; 56:12862-12865. [DOI: 10.1002/anie.201705557] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Jean-Philippe Krieger
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I; Universidad del Pais Vasco; Apdo 1072 CP-20080 Donostia-San Sebastián Spain
| | - Thomas Fox
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Anthony Linden
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| |
Collapse
|
36
|
Kumar R, Krieger JP, Gómez-Bengoa E, Fox T, Linden A, Nevado C. The First Gold(III) Formate: Evidence for β-Hydride Elimination. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201705557] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Jean-Philippe Krieger
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Enrique Gómez-Bengoa
- Departamento de Química Orgánica I; Universidad del Pais Vasco; Apdo 1072 CP-20080 Donostia-San Sebastián Spain
| | - Thomas Fox
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Anthony Linden
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 8057 Zürich Switzerland
| |
Collapse
|
37
|
Dong B, Peng H, Motika SE, Shi X. Gold Redox Catalysis through Base-Initiated Diazonium Decomposition toward Alkene, Alkyne, and Allene Activation. Chemistry 2017; 23:11093-11099. [PMID: 28603854 PMCID: PMC5671776 DOI: 10.1002/chem.201701970] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Indexed: 12/28/2022]
Abstract
The discovery of photoassisted diazonium activation toward gold(I) oxidation greatly extended the scope of gold redox catalysis by avoiding the use of a strong oxidant. Some practical issues that limit the application of this new type of chemistry are the relative low efficiency (long reaction time and low conversion) and the strict reaction condition control that is necessary (degassing and inert reaction environment). Herein, an alternative photofree condition has been developed through Lewis base induced diazonium activation. With this method, an unreactive AuI catalyst was used in combination with Na2 CO3 and diazonium salts to produce a AuIII intermediate. The efficient activation of various substrates, including alkyne, alkene and allene was achieved, followed by rapid AuIII reductive elimination, which yielded the C-C coupling products with good to excellent yields. Relative to the previously reported photoactivation method, our approach offered greater efficiency and versatility through faster reaction rates and broader reaction scope. Challenging substrates such as electron rich/neutral allenes, which could not be activated under the photoinitiation conditions (<5 % yield), could be activated to subsequently yield the desired coupling products in good to excellent yield.
Collapse
Affiliation(s)
- Boliang Dong
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Haihui Peng
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Stephen E Motika
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL, 33620, USA
| |
Collapse
|
38
|
Alcaide B, Almendros P, Aparicio B, Lázaro-Milla C, Luna A, Faza ON. Gold-Photoredox-Cocatalyzed Tandem Oxycyclization/Coupling Sequence of Allenols and Diazonium Salts with Visible Light Mediation. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700598] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General, Consejo Superior de Investigaciones Científicas; IQOG-CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Borja Aparicio
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Carlos Lázaro-Milla
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Amparo Luna
- Grupo de Lactamas y Heterociclos Bioactivos, Departamento de Química Orgánica I, Unidad Asociada al CSIC, Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Olalla Nieto Faza
- Departamento de Química Orgánica, Facultade de Ciencias; Universidade de Vigo; Campus as Lagoas 32004 Ourense Spain
| |
Collapse
|
39
|
Alcaide B, Almendros P, Busto E, Herrera F, Lázaro-Milla C, Luna A. Photopromoted Entry to Benzothiophenes, Benzoselenophenes, 3H-Indoles, Isocoumarins, Benzosultams, and (Thio)flavones by Gold-Catalyzed Arylative Heterocyclization of Alkynes. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700427] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Benito Alcaide
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Pedro Almendros
- Instituto de Química Orgánica General; Consejo Superior de Investigaciones Científicas; IQOG-CSIC; Juan de la Cierva 3 28006 Madrid Spain
| | - Eduardo Busto
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Fernando Herrera
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Carlos Lázaro-Milla
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Amparo Luna
- Grupo de Lactamas y Heterociclos Bioactivos; Departamento de Química Orgánica I; Unidad Asociada al CSIC; Facultad de Química; Universidad Complutense de Madrid; 28040 Madrid Spain
| |
Collapse
|
40
|
Witzel S, Xie J, Rudolph M, Hashmi ASK. Photosensitizer-Free, Gold-Catalyzed C-C Cross-Coupling of Boronic Acids and Diazonium Salts Enabled by Visible Light. Adv Synth Catal 2017. [DOI: 10.1002/adsc.201700121] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Sina Witzel
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Jin Xie
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Matthias Rudolph
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches Institut; Universität Heidelberg; Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry Department, Faculty of Science; King Abdulaziz University; Jeddah 21589 Saudi Arabia
| |
Collapse
|
41
|
Bhattacharjee R, Nijamudheen A, Datta A. Direct and Autocatalytic Reductive Elimination from Gold Complexes ([(Ph3P)Au(Ar)(CF3)(X)], X=F, Cl, Br, I): The Key Role of Halide Ligands. Chemistry 2017; 23:4169-4179. [PMID: 28084031 DOI: 10.1002/chem.201605784] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2016] [Indexed: 01/23/2023]
Affiliation(s)
- Rameswar Bhattacharjee
- Department of Spectroscopy; Indian Association for the Cultivation of Science; Jadavpur 700032 West Bengal India
| | - A. Nijamudheen
- Department of Spectroscopy; Indian Association for the Cultivation of Science; Jadavpur 700032 West Bengal India
- Department of Chemistry; University at Buffalo, The State University of New York; Buffalo NY 14260-3000 USA
| | - Ayan Datta
- Department of Spectroscopy; Indian Association for the Cultivation of Science; Jadavpur 700032 West Bengal India
| |
Collapse
|
42
|
Cyclometallierte AuIII
-Komplexe: Synthese, Reaktivität und physikalisch-chemische Eigenschaften. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201607225] [Citation(s) in RCA: 49] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
43
|
Kumar R, Nevado C. Cyclometalated Gold(III) Complexes: Synthesis, Reactivity, and Physicochemical Properties. Angew Chem Int Ed Engl 2017; 56:1994-2015. [DOI: 10.1002/anie.201607225] [Citation(s) in RCA: 128] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2016] [Revised: 09/21/2016] [Indexed: 11/08/2022]
Affiliation(s)
- Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 180 CH-8057 Switzerland
| |
Collapse
|
44
|
Dwadnia N, Roger J, Pirio N, Cattey H, Ben Salem R, Hierso JC. Gold-Catalyzed Suzuki Coupling ofortho-Substituted Hindered Aryl Substrates. Chem Asian J 2017; 12:459-464. [DOI: 10.1002/asia.201601583] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2016] [Indexed: 12/14/2022]
Affiliation(s)
- Nejib Dwadnia
- Université de Bourgogne; Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302-Université de Bourgogne Franche-Comté (UBFC); 9, avenue Alain Savary 21078 Dijon France
| | - Julien Roger
- Université de Bourgogne; Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302-Université de Bourgogne Franche-Comté (UBFC); 9, avenue Alain Savary 21078 Dijon France
| | - Nadine Pirio
- Université de Bourgogne; Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302-Université de Bourgogne Franche-Comté (UBFC); 9, avenue Alain Savary 21078 Dijon France
| | - Hélène Cattey
- Université de Bourgogne; Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302-Université de Bourgogne Franche-Comté (UBFC); 9, avenue Alain Savary 21078 Dijon France
| | - Ridha Ben Salem
- Laboratoire de Chimie Organique Physique UR11ES74; Faculté des Sciences; Université de Sfax; 3038 SFax Tunisia
| | - Jean-Cyrille Hierso
- Université de Bourgogne; Institut de Chimie Moléculaire de l'Université de Bourgogne; UMR-CNRS 6302-Université de Bourgogne Franche-Comté (UBFC); 9, avenue Alain Savary 21078 Dijon France
- Institut Universitaire de France (IUF); 103 Boulevard Saint Michel 75005 Paris Cedex France
| |
Collapse
|
45
|
Hofer M, Genoux A, Kumar R, Nevado C. Gold-Catalyzed Direct Oxidative Arylation with Boron Coupling Partners. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201610457] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Manuel Hofer
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Alexandre Genoux
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| |
Collapse
|
46
|
Shaikh AC, Ranade DS, Rajamohanan PR, Kulkarni PP, Patil NT. Oxidative Intramolecular 1,2‐Amino‐Oxygenation of Alkynes under Au
I
/Au
III
Catalysis: Discovery of a Pyridinium‐Oxazole Dyad as an Ionic Fluorophore. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201609335] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Aslam C. Shaikh
- Division of Organic Chemistry CSIR—National Chemical Laboratory Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110 025 India
| | | | | | | | - Nitin T. Patil
- Division of Organic Chemistry CSIR—National Chemical Laboratory Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110 025 India
| |
Collapse
|
47
|
Hofer M, Genoux A, Kumar R, Nevado C. Gold-Catalyzed Direct Oxidative Arylation with Boron Coupling Partners. Angew Chem Int Ed Engl 2016; 56:1021-1025. [DOI: 10.1002/anie.201610457] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2016] [Indexed: 01/17/2023]
Affiliation(s)
- Manuel Hofer
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Alexandre Genoux
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Roopender Kumar
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| | - Cristina Nevado
- Department of Chemistry; University of Zürich; Winterthurerstrasse 190 8057 Zürich Switzerland
| |
Collapse
|
48
|
Shaikh AC, Ranade DS, Rajamohanan PR, Kulkarni PP, Patil NT. Oxidative Intramolecular 1,2‐Amino‐Oxygenation of Alkynes under Au
I
/Au
III
Catalysis: Discovery of a Pyridinium‐Oxazole Dyad as an Ionic Fluorophore. Angew Chem Int Ed Engl 2016; 56:757-761. [DOI: 10.1002/anie.201609335] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2016] [Revised: 11/22/2016] [Indexed: 01/24/2023]
Affiliation(s)
- Aslam C. Shaikh
- Division of Organic Chemistry CSIR—National Chemical Laboratory Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110 025 India
| | | | | | | | - Nitin T. Patil
- Division of Organic Chemistry CSIR—National Chemical Laboratory Dr. Homi Bhabha Road Pune 411 008 India
- Academy of Scientific and Innovative Research (AcSIR) New Delhi 110 025 India
| |
Collapse
|
49
|
Wang Q, Jiang Y, Sun R, Tang XY, Shi M. Gold-Catalyzed Fluorination-Hydration: Synthesis of α-Fluorobenzofuranones from 2-Alkynylphenol Derivatives. Chemistry 2016; 22:14739-45. [DOI: 10.1002/chem.201602545] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Qiang Wang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 China
| | - Yu Jiang
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 China
| | - Run Sun
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 China
| | - Xiang-Ying Tang
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry (SIOC); Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| | - Min Shi
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals; School of Chemistry & Molecular Engineering; East China University of Science and Technology; Meilong Road No. 130 Shanghai 200237 China
- State Key Laboratory of Organometallic Chemistry; Shanghai Institute of Organic Chemistry (SIOC); Chinese Academy of Sciences; 345 Lingling Road Shanghai 200032 China
| |
Collapse
|
50
|
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
| |
Collapse
|