1
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Curtis CJ, Habenšus I, Conradie J, Bardin AA, Nannenga BL, Ghosh A, Tomat E. Gold Tripyrrindione: Redox Chemistry and Reactivity with Dichloromethane. Inorg Chem 2024; 63:17188-17197. [PMID: 39215706 DOI: 10.1021/acs.inorgchem.4c02903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/04/2024]
Abstract
The identification of ligands that stabilize Au(III) centers has led to the isolation of complexes for applications in catalysis, gold-based therapeutics, and functional materials. Herein, we report the coordination of gold by tripyrrin-1,14-dione, a linear tripyrrole with the scaffold of naturally occurring metabolites of porphyrin-based protein cofactors (e.g., heme). Tripyrrindione H3TD2 binds Au(III) as a trianionic tridentate ligand to form square planar complex [Au(TD2)(H2O)], which features an adventitious aqua ligand. Two reversible ligand-based oxidations of this complex allow access to the other known redox states of the tripyrrindione framework. Conversely, (spectro)electrochemical measurements and DFT analysis indicate that the reduction of the complex is likely metal-based. The chemical reduction of [Au(TD2)(H2O)] leads to a reactive species that utilizes dichloromethane in the formation of a cyclometalated organo-Au(III) complex. Both the aqua and the organometallic Au(III) complexes were characterized in the solid state by microcrystal electron diffraction (MicroED) methods, which were critical for the analysis of the microcrystalline sample of the organo-gold species. Overall, this study illustrates the synthesis of Au(III) tripyrrindione as well as its redox profile and reactivity leading to gold alkylation chemistry.
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Affiliation(s)
- Clayton J Curtis
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Iva Habenšus
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
| | - Jeanet Conradie
- Department of Chemistry, University of the Free State, Bloemfontein 9300, Republic of South Africa
- Department of Chemistry, UiT─The Arctic University of Norway, Tromsø N-9037, Norway
| | - Andrey A Bardin
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona 85281, United States
- Chemical Engineering, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Brent L Nannenga
- Center for Applied Structural Discovery, The Biodesign Institute, Arizona State University, Tempe, Arizona 85281, United States
- Chemical Engineering, School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe, Arizona 85287, United States
| | - Abhik Ghosh
- Department of Chemistry, UiT─The Arctic University of Norway, Tromsø N-9037, Norway
| | - Elisa Tomat
- Department of Chemistry and Biochemistry, The University of Arizona, 1306 E. University Blvd., Tucson, Arizona 85721, United States
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2
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Shukla G, Singh M, Singh S, Singh MS. Iridium(III)-catalyzed photoredox cross-coupling of alkyl bromides with trialkyl amines: access to α-alkylated aldehydes. Chem Commun (Camb) 2024. [PMID: 38686503 DOI: 10.1039/d4cc01043d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
A C(sp3)-C(sp3) cross coupling approach based on an iridium-photocatalytic radical process has been developed enabling the synthesis of various α-alkylated aldehydes from easily available/synthesized alkyl bromides and trialkyl amines under mild photocatalytic conditions. The synthesized aldehydes are also explored as a functional handle for various useful products such as carboxylic acid, alcohol and N-heterocycle synthesis.
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Affiliation(s)
- Gaurav Shukla
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-211005, India.
| | - Malkeet Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-211005, India.
| | - Saurabh Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-211005, India.
| | - Maya Shankar Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi-211005, India.
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3
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Wu F, Wang Y, Zhao Y, Zeng S, Wang Z, Tang M, Zeng W, Wang Y, Chang X, Xiang J, Xie Z, Han B, Liu Z. Upcycling poly(succinates) with amines to N-substituted succinimides over succinimide anion-based ionic liquids. Nat Commun 2024; 15:712. [PMID: 38267443 PMCID: PMC10808099 DOI: 10.1038/s41467-024-44892-1] [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: 08/08/2023] [Accepted: 01/09/2024] [Indexed: 01/26/2024] Open
Abstract
The chemical transformation of waste polymers into value-added chemicals is of significance for circular economy and sustainable development. Herein, we report upcycling poly(succinates) (PSS) with amines into N-substituted succinimides over succinimide anion-based ionic liquids (ILs, e.g, 1,8-diazabicyclo[5.4.0]undec-7-ene succinimide, [HDBU][Suc]). Assisted with H2O, [HDBU][Suc]) showed the best performance, which could achieve complete transformation of a series of PSS into succinimide derivatives and corresponding diols under mild and metal-free conditions. Mechanism investigation indicates that the cation-anion confined hydrogen-bonding interactions among IL, H2O, ester group, and amino/amide groups, strengthens nucleophilicity of the N atoms in amino/amide groups, and improves electrophilicity of carbonyl C atom in ester group. The attack of the amino/amide N atom on carbonyl C of ester group results in cleavage of carbonyl C-O bond in polyester and formation of amide group. This strategy is also effective for aminolysis of poly(trimethylene glutarate) to glutarimides, and poly(1,4-butylene adipate) to caprolactone diimides.
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Affiliation(s)
- Fengtian Wu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Economic Development Zone, Guanglan Avenue 418, Nanchang, 330013, P. R. China
| | - Yuepeng Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Yanfei Zhao
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Shaojuan Zeng
- Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, P. R. China
| | - Zhenpeng Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
| | - Minhao Tang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Wei Zeng
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Ying Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Xiaoqian Chang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Junfeng Xiang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
| | - Zongbo Xie
- Jiangxi Province Key Laboratory of Polymer Micro/Nano Manufacturing and Devices, Jiangxi Province Key Laboratory of Synthetic Chemistry, East China University of Technology, Economic Development Zone, Guanglan Avenue 418, Nanchang, 330013, P. R. China
| | - Buxing Han
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China
| | - Zhimin Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Colloid and Interface and Thermodynamics, Center for Carbon Neutral Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190, Beijing, P. R. China.
- University of Chinese Academy of Sciences, Beijing, 100049, P. R. China.
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4
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Scattolin T, Tonon G, Botter E, Guillet SG, Tzouras NV, Nolan SP. Gold(I)-N-Heterocyclic Carbene Synthons in Organometallic Synthesis. Chemistry 2023; 29:e202301961. [PMID: 37463071 DOI: 10.1002/chem.202301961] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Revised: 07/14/2023] [Accepted: 07/17/2023] [Indexed: 07/20/2023]
Abstract
The prominent role of gold-N-heterocyclic carbene (NHC) complexes in numerous research areas such as homogeneous (photo)catalysis, medicinal chemistry and materials science has prompted organometallic chemists to design gold-based synthons that permit access to target complexes through simple synthetic steps under mild conditions. In this review, the main gold-NHC synthons employed in organometallic synthesis are discussed. Mechanistic aspects involved in their synthesis and reactivity as well as applications of gold-NHC synthons as efficient pre-catalysts, antitumor agents and/or photo-emissive materials are presented.
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Affiliation(s)
- Thomas Scattolin
- Dipartimento di Scienze Chimiche, Università degli studi di Padova, via Marzolo 1, 35131, Padova, Italy
| | - Giovanni Tonon
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Campus Scientifico, Via Torino 155, 30174, Venezia-Mestre, Italy
| | - Eleonora Botter
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Campus Scientifico, Via Torino 155, 30174, Venezia-Mestre, Italy
| | - Sebastien G Guillet
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Nikolaos V Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
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5
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Jha RK, Batabyal M, Kumar S. Blue Light Irradiated Metal-, Oxidant-, and Base-Free Cross-Dehydrogenative Coupling of C( sp2)-H and N-H Bonds: Amination of Naphthoquinones with Amines. J Org Chem 2023. [PMID: 37171187 DOI: 10.1021/acs.joc.3c00666] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Herein, we report a blue-light-driven amination of C(sp2)-H bond of naphthoquinones and quinones with the N-H bond of primary and secondary amines for the synthesis of 2-amino-naphthoquinones and 2-amino-quinones. The coupling of naphthoquinones with a wide array of aliphatic, aromatic, chiral, primary, and secondary amines having electron donating (-CH3, -OCH3, -SCH3), withdrawing (-F, -Cl, -Br, -I), and CO2H, -OH, -NH2 groups with acidic protons selectively occurred to afford C-N coupled 2-amino-naphthoquinones in 60-99% yields and hydrogen gas as a byproduct in methanol solvent without using any additional reagents, additives, and oxidant under the blue light irradiation. Mechanistic insight by DFT computation, controlled experiments, kinetic isotopic effect, and substitution effect of the substrates suggest that the reaction proceeds by radical pathway in which naphthoquinone forms a highly oxidizing naphthoquinonyl biradical upon irradiation of blue light (457 nm). Consequently, electron transfer from electron-rich amine to an oxidizing naphthoquinonyl biradical leads to a naphthoquinonyl radical anion and aminyl radical cation, followed by proton transfer and delocalization leading to a carbon-centered naphthoquinonyl radical. The cross-coupling of naphthoquinonyl carbon-centered and aminyl nitrogen radicals forms a C-N bond, with subsequent elimination of hydrogen gas (which was also confirmed by GC-TCD), affording 2-amino-1,4-naphthoquinone under metal-, reagent-, base-, and oxidant-free conditions.
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Affiliation(s)
- Raushan Kumar Jha
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh 462066, India
| | - Monojit Batabyal
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh 462066, India
| | - Sangit Kumar
- Department of Chemistry, Indian Institute of Science Education and Research (IISER) Bhopal, Bhopal By-pass Road, Bhauri, Bhopal, Madhya Pradesh 462066, India
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6
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Theulier CA, García-Rodeja Y, Miqueu K, Bouhadir G, Bourissou D. Lewis Acid-Assisted C(sp 3)-C(sp 3) Reductive Elimination at Gold. J Am Chem Soc 2023; 145:10800-10808. [PMID: 37137163 DOI: 10.1021/jacs.3c01974] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The phosphine-borane iPr2P(o-C6H4)BFxyl2 (Fxyl = 3,5-(F3C)2C6H3) 1-Fxyl was found to promote the reductive elimination of ethane from [AuMe2(μ-Cl)]2. Nuclear magnetic resonance monitoring revealed the intermediate formation of the (1-Fxyl)AuMe2Cl complex. Density functional theory calculations identified a zwitterionic path as the lowest energy profile, with an overall activation barrier more than 10 kcal/mol lower than without borane assistance. The Lewis acid moiety first abstracts the chloride to generate a zwitterionic Au(III) complex, which then readily undergoes C(sp3)-C(sp3) coupling. The chloride is finally transferred back from boron to gold. The electronic features of this Lewis-assisted reductive elimination at gold have been deciphered by intrinsic bond orbital analyses. Sufficient Lewis acidity of boron is required for the ambiphilic ligand to trigger the C(sp3)-C(sp3) coupling, as shown by complementary studies with two other phosphine-boranes, and the addition of chlorides slows down the reductive elimination of ethane.
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Affiliation(s)
- Cyril A Theulier
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Yago García-Rodeja
- CNRS/Université de Pau et des Pays de l'Adour, E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM, UMR 5254), Hélioparc, 2 Avenue du Président Angot, 64053 Cedex 09 Pau, France
| | - Karinne Miqueu
- CNRS/Université de Pau et des Pays de l'Adour, E2S UPPA, Institut des Sciences Analytiques et de Physico-Chimie pour l'Environnement et les Matériaux (IPREM, UMR 5254), Hélioparc, 2 Avenue du Président Angot, 64053 Cedex 09 Pau, France
| | - Ghenwa Bouhadir
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
| | - Didier Bourissou
- CNRS/Université Paul Sabatier, Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069), 118 Route de Narbonne, 31062 Cedex 09 Toulouse, France
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7
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Mehara J, Koovakattil Surendran A, van Wieringen T, Setia D, Foroutan-Nejad C, Straka M, Rulíšek L, Roithová J. Cationic Gold(II) Complexes: Experimental and Theoretical Study. Chemistry 2022; 28:e202201794. [PMID: 35946558 DOI: 10.1002/chem.202201794] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Indexed: 01/07/2023]
Abstract
Gold(II) complexes are rare, and their application to the catalysis of chemical transformations is underexplored. The reason is their easy oxidation or reduction to more stable gold(III) or gold(I) complexes, respectively. We explored the thermodynamics of the formation of [AuII (L)(X)]+ complexes (L=ligand, X=halogen) from the corresponding gold(III) precursors and investigated their stability and spectral properties in the IR and visible range in the gas phase. The results show that the best ancillary ligands L for stabilizing gaseous [AuII (L)(X)]+ complexes are bidentate and tridentate ligands with nitrogen donor atoms. The electronic structure and spectral properties of the investigated gold(II) complexes were correlated with quantum chemical calculations. The results show that the molecular and electronic structure of the gold(II) complexes as well as their spectroscopic properties are very similar to those of analogous stable copper(II) complexes.
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Affiliation(s)
- Jaya Mehara
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Adarsh Koovakattil Surendran
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Teun van Wieringen
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Deeksha Setia
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Cina Foroutan-Nejad
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí. 2, 16610, Prague, Czech Republic
| | - Michal Straka
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí. 2, 16610, Prague, Czech Republic
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí. 2, 16610, Prague, Czech Republic
| | - Jana Roithová
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
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8
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Muniz CN, Schaab J, Razgoniaev A, Djurovich PI, Thompson ME. π-Extended Ligands in Two-Coordinate Coinage Metal Complexes. J Am Chem Soc 2022; 144:17916-17928. [PMID: 36126274 DOI: 10.1021/jacs.2c06948] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Two-coordinate carbene-MI-amide (cMa, MI = Cu, Ag, Au) complexes have emerged as highly efficient luminescent materials for use in a variety of photonic applications due to their extremely fast radiative rates through thermally activated delayed fluorescence (TADF) from an interligand charge transfer (ICT) process. A series of cMa derivatives was prepared to examine the variables that affect the radiative rate, with the goal of understanding the parameters that control the radiative TADF process in these materials. We find that blue-emissive complexes with high photoluminescence efficiencies (ΦPL > 0.95) and fast radiative rates (kr = 4 × 106 s-1) can be achieved by selectively extending the π-system of the carbene and amide ligands. Of note is the role played by the increased separation between the hole and electron in the ICT excited state. Analysis of temperature-dependent luminescence data and theoretical calculations indicate that the hole-electron separation exerts a primary effect on the energy gap between the lowest-energy singlet and triplet states (ΔEST) while keeping the radiative rate for the singlet state relatively unchanged. This interpretation provides guidelines for the design of new cMa derivatives with even faster radiative rates in addition to those with slower radiative rates and thus extended excited state lifetimes.
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Affiliation(s)
- Collin N Muniz
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Jonas Schaab
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Anton Razgoniaev
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Peter I Djurovich
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
| | - Mark E Thompson
- Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States
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9
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Ibni Hashim I, Tzouras NV, Janssens W, Scattolin T, Bourda L, Bhandary S, Van Hecke K, Nolan SP, Cazin CSJ. Synthesis of Carbene‐Metal‐Amido (CMA) Complexes and Their Use as Precatalysts for the Activator‐Free, Gold‐Catalyzed Addition of Carboxylic Acids to Alkynes. Chemistry 2022; 28:e202201224. [DOI: 10.1002/chem.202201224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Indexed: 11/08/2022]
Affiliation(s)
- Ishfaq Ibni Hashim
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Nikolaos V. Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Wim Janssens
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Thomas Scattolin
- Dipartimento di Scienze Chimiche Università degli Studi di Padova Via Marzolo 1 35131 Padova Italy
| | - Laurens Bourda
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Subhrajyoti Bhandary
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Steven P. Nolan
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
| | - Catherine S. J. Cazin
- Department of Chemistry and Centre for Sustainable Chemistry Ghent University Krijgslaan 281,S-3 9000 Ghent Belgium
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10
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Harper KC, Zhang EX, Liu ZQ, Grieme T, Towne TB, Mack DJ, Griffin J, Zheng SY, Zhang NN, Gangula S, Yuan JL, Miller R, Huang PZ, Gage J, Diwan M, Ku YY. Commercial-Scale Visible Light Trifluoromethylation of 2-Chlorothiophenol Using CF3I Gas. Org Process Res Dev 2022. [DOI: 10.1021/acs.oprd.1c00436] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kaid C. Harper
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - En-Xuan Zhang
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Zhi-Qing Liu
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Timothy Grieme
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - Timothy B. Towne
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - Daniel J. Mack
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - Jeremy Griffin
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - Song-Yuan Zheng
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Ning-Ning Zhang
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Srinivas Gangula
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Jia-Long Yuan
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Robert Miller
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - Ping-Zhong Huang
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - James Gage
- Asymchem Laboratories (Tianjin) Company Limited, TEDA, Tianjin 300457, P. R. China
| | - Moiz Diwan
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
| | - Yi-Yin Ku
- Abbvie Process Research & Development, 1401 N. Sheridan Road, North Chicago, Illinois 60064, United States
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11
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Liu Y, Zhu K, Kong Y, Li X, Cui J, Xia Y, Zhao J, Duan S, Li P. Merging Gold/Copper Catalysis and Copper/Photoredox Catalysis: An Approach to Alkyl Oxazoles from N-Propargylamides. J Org Chem 2021; 86:18247-18256. [PMID: 34866385 DOI: 10.1021/acs.joc.1c02668] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Here, we report a mild and highly efficient approach to alkyl oxazoles through merging gold/copper catalysis and copper/photoredox catalysis. Various alkyl oxazoles are synthesized from N-propargylamides with alkyl halides in good to excellent yields with wide functional-group compatibility under blue-light irradiation. Significantly, a copper catalyst plays a dual role in this transformation: as a powerful cocatalyst to accelerate protodeauration of vinyl gold intermediates and improve photoredox catalysis.
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Affiliation(s)
- Yantao Liu
- Institute of Functional Organic Molecular Engineering, Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Keyong Zhu
- Institute of Functional Organic Molecular Engineering, Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Yuting Kong
- Institute of Functional Organic Molecular Engineering, Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Xiao Li
- Institute of Functional Organic Molecular Engineering, Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Jie Cui
- School of Pharmacy, Henan University, Kaifeng 475004, P. R. China
| | - Yifan Xia
- School of Pharmacy, Henan University, Kaifeng 475004, P. R. China
| | - Jingjing Zhao
- Institute of Functional Organic Molecular Engineering, Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
| | - Shaofeng Duan
- School of Pharmacy, Henan University, Kaifeng 475004, P. R. China
| | - Pan Li
- Institute of Functional Organic Molecular Engineering, Henan International Joint Laboratory of Medicinal Plants Utilization, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, P. R. China
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12
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Mondal PK, Tiwari SK, Singh P, Pandey G. Direct Arylation of Distal and Proximal C(sp 3)-H Bonds of t-Amines with Aryl Diazonium Tetrafluoroborates via Photoredox Catalysis. J Org Chem 2021; 86:17184-17196. [PMID: 34786938 DOI: 10.1021/acs.joc.1c02286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A visible light-mediated arylation protocol for t-amines has been reported through the coupling of γ- and α-amino alkyl radicals with different aryl diazonium salts using Ru(bpy)3Cl2·6H2O as a photocatalyst. Structurally different 9-aryl-9,10-dihydroacridine, 1-aryl tetrahydroisoquinoline, hexahydropyrrolo[2,1-a]isoquinoline, and hexahydro-2H-pyrido[2,1-a]isoquinoline frameworks with different substitution patterns have been synthesized in good yield using this methodology.
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Affiliation(s)
- Pradip Kumar Mondal
- Department of Chemistry, Institute of Science, Banaras Hindu University (BHU), Varanasi 221005, India
| | - Sandip Kumar Tiwari
- Department of Chemistry, Institute of Science, Banaras Hindu University (BHU), Varanasi 221005, India
| | - Pushpendra Singh
- Department of Chemistry, Institute of Science, Banaras Hindu University (BHU), Varanasi 221005, India
| | - Ganesh Pandey
- Department of Chemistry, Institute of Science, Banaras Hindu University (BHU), Varanasi 221005, India
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13
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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
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14
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Voloshkin VA, Tzouras NV, Nolan SP. Recent advances in the synthesis and derivatization of N-heterocyclic carbene metal complexes. Dalton Trans 2021; 50:12058-12068. [PMID: 34519733 DOI: 10.1039/d1dt01847g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
N-heterocyclic carbene (NHC) metal complexes have gained an incredible amount of attention in the course of the last two decades and have become indispensable as an intricate part of a plethora of applications. The areas of their synthesis and derivatization are constantly evolving and bring new, more sustainable, cost-effective and simpler approaches to the design of existing and next generation catalysts and materials. This article provides an overview of the latest developments, focusing on those which have appeared during the last two years.
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Affiliation(s)
- Vladislav A Voloshkin
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Nikolaos V Tzouras
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281 (S-3), 9000 Ghent, Belgium.
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15
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Engbers S, Trifonova EA, Hess KM, Vries F, Klein JEMN. Synthesis of a Sterically Encumbered Pincer Au(III)−OH Complex. Eur J Inorg Chem 2021. [DOI: 10.1002/ejic.202100305] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Silène Engbers
- Molecular Inorganic Chemistry Stratingh Institute for Chemistry Faculty of Science and Engineering University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Evgeniya A. Trifonova
- Molecular Inorganic Chemistry Stratingh Institute for Chemistry Faculty of Science and Engineering University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Kristopher M. Hess
- Molecular Inorganic Chemistry Stratingh Institute for Chemistry Faculty of Science and Engineering University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Folkert Vries
- Molecular Inorganic Chemistry Stratingh Institute for Chemistry Faculty of Science and Engineering University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Johannes E. M. N. Klein
- Molecular Inorganic Chemistry Stratingh Institute for Chemistry Faculty of Science and Engineering University of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
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16
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Frank M, Bulut Y, Czympiel L, Weißing R, Nahrstedt V, Wilhelm M, Grosch M, Raauf A, Verma A, Fischer T, Mathur S. Piezo-enhanced activation of dinitrogen for room temperature production of ammonia. NANOTECHNOLOGY 2021; 32:465601. [PMID: 34348241 DOI: 10.1088/1361-6528/ac1a96] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Accepted: 08/04/2021] [Indexed: 06/13/2023]
Abstract
The catalytic conversion of nitrogen to ammonia remains an energy-intensive process, demanding advanced concepts for nitrogen fixation. The major obstacle of nitrogen fixation lies in the intrinsically high bond energy (941 kJ mol-1) of the N≡N molecule and the absence of a permanent dipole in N2. This kinetic barrier is addressed in this study by an efficient piezo-enhanced gold catalysis as demonstrated by the room temperature reduction of dinitrogen into ammonia. Au nanostructures were immobilized on thin film piezoelectric support of potassium sodium niobate (K0.5Na0.5NbO3, KNN) by chemical vapor deposition of a new Au(III) precursor [Me2Au(PyTFP)(H2O)]1(PyTFP = (Z)-3,3,3-trifluoro-1-(pyridin-2-yl)-prop-1-en-2-olate) that exhibited high volatility (60 °C, 10-3mbar) and clean decomposition mechanism to produce well adherent elemental gold films on KNN and Ti substrates. The gold-functionalized KNN films served as an efficient catalytic system for ammonia production with a Faradaic efficiency of 18.9% achieved upon ultrasonic actuation. Our results show that the spontaneous polarization of piezoelectric materials under external electrical fields augments the sluggish electron transfer kinetics by creating instant dipoles in adsorbed N2molecules to deliver a piezo-enhanced catalytic system promising for sustained activation of dinitrogen molecules.
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Affiliation(s)
- Michael Frank
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Yusuf Bulut
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Lisa Czympiel
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Rene Weißing
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Vanessa Nahrstedt
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Michael Wilhelm
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Matthias Grosch
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Aida Raauf
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Anjneya Verma
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Thomas Fischer
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
| | - Sanjay Mathur
- Department of Chemistry, Institute of Inorganic Chemistry, University of Cologne, Greinstrasse 6, D-50939 Cologne, Germany
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17
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Liu Y, Shi Y, Wei L, Zhao K, Zhao J, Zhang P, Xu X, Li P. Gold-Catalyzed One-Pot Synthesis of Polyfluoroalkylated Oxazoles from N-Propargylamides Under Visible-Light Irradiation. Chem Asian J 2021; 16:2417-2420. [PMID: 34235859 DOI: 10.1002/asia.202100614] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 06/29/2021] [Indexed: 11/11/2022]
Abstract
A gold-catalyzed synthesis of polyfluoroalkylated oxazoles from N-propargylamides under visible-light irradiation has been developed. These reactions display excellent compatibility of radicals and gold catalysts under visible-light irradiation. Mechanistic experiments indicate that polyfluoroalkyl iodides play a dual role in enhanced compatibility of radicals and gold catalysts through assisted protodeauration of vinyl gold and reactivated the gold catalyst. In addition, PPh3 AuNTf2 not only activates N-propargylamide to generate vinyl gold intermediate, but also greatly promotes homolysis of polyfluoroalkyl iodides under blue light irradiation.
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Affiliation(s)
- Yantao Liu
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Yating Shi
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Lanen Wei
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Ke Zhao
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Jingjing Zhao
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Puyu Zhang
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Xuejun Xu
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
| | - Pan Li
- Department Institute of Functional Organic Molecular Engineering, College of Chemistry and Chemical Engineering, Henan University, Kaifeng, 475004, P. R. China
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18
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Qin Y, Zhu Q, Sun R, Ganley JM, Knowles RR, Nocera DG. Mechanistic Investigation and Optimization of Photoredox Anti-Markovnikov Hydroamination. J Am Chem Soc 2021; 143:10232-10242. [PMID: 34191486 PMCID: PMC8600941 DOI: 10.1021/jacs.1c03644] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The reaction mechanism and the origin of the selectivity for the photocatalytic intermolecular anti-Markovnikov hydroamination of unactivated alkenes with primary amines to furnish secondary amines have been revealed by time-resolved laser kinetics measurements of the key reaction intermediates. We show that back-electron transfer (BET) between the photogenerated aminium radical cation (ARC) and reduced photocatalyst complex (Ir(II)) is nearly absent due to rapid deprotonation of the ARC on the sub-100 ns time scale. The selectivity for primary amine alkylation is derived from the faster addition of the primary ARCs (as compared to secondary ARCs) to alkenes. The turnover of the photocatalyst occurs via the reaction between Ir(II) and a thiyl radical; the in situ formation of an off-cycle disulfide from thiyl radicals suppresses this turnover, diminishing the efficiency of the reaction. With these detailed mechanistic insights, the turnover of the photocatalyst has been optimized, resulting in a >10-fold improvement in the quantum yield. These improvements enabled the development of a scalable flow protocol, demonstrating a potential strategy for practical applications with improved energy efficiency and cost-effectiveness.
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Affiliation(s)
- Yangzhong Qin
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Qilei Zhu
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Rui Sun
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Jacob M Ganley
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Robert R Knowles
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Daniel G Nocera
- Department of Chemistry and Chemical Biology, Harvard University, 12 Oxford Street, Cambridge, Massachusetts 02138, United States
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19
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Tzouras NV, Martynova EA, Ma X, Scattolin T, Hupp B, Busen H, Saab M, Zhang Z, Falivene L, Pisanò G, Van Hecke K, Cavallo L, Cazin CSJ, Steffen A, Nolan SP. Simple Synthetic Routes to Carbene-M-Amido (M=Cu, Ag, Au) Complexes for Luminescence and Photocatalysis Applications. Chemistry 2021; 27:11904-11911. [PMID: 34038002 PMCID: PMC8456869 DOI: 10.1002/chem.202101476] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2021] [Indexed: 12/20/2022]
Abstract
The development of novel and operationally simple synthetic routes to carbene‐metal‐amido (CMA) complexes of copper, silver and gold relevant for photonic applications are reported. A mild base and sustainable solvents allow all reactions to be conducted in air and at room temperature, leading to high yields of the targeted compounds even on multigram scales. The effect of various mild bases on the N−H metallation was studied in silico and experimentally, while a mechanochemical, solvent‐free synthetic approach was also developed. Our photophysical studies on [M(NHC)(Cbz)] (Cbz=carbazolyl) indicate that the occurrence of fluorescent or phosphorescent states is determined primarily by the metal, providing control over the excited state properties. Consequently, we demonstrate the potential of the new CMAs beyond luminescence applications by employing a selected CMA as a photocatalyst. The exemplified synthetic ease is expected to accelerate the applications of CMAs in photocatalysis and materials chemistry.
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Affiliation(s)
- Nikolaos V Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Ekaterina A Martynova
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Xinyuan Ma
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Thomas Scattolin
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Benjamin Hupp
- Faculty of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Hendrik Busen
- Faculty of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Marina Saab
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Ziyun Zhang
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Laura Falivene
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Gianmarco Pisanò
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Catherine S J Cazin
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
| | - Andreas Steffen
- Faculty of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Str. 6, 44227, Dortmund, Germany
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281,S-3, 9000, Ghent, Belgium
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20
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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
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21
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Qin XY, Meng FT, Wang M, Tu SJ, Hao WJ, Wang J, Jiang B. Gold-Catalyzed Skeletal Rearrangement of Alkenes: Regioselective Synthesis of Skeletally Diverse Tricyclic Heterocycles and Mechanistic Investigations. ACS Catal 2021. [DOI: 10.1021/acscatal.1c00753] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao-Yan Qin
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Fan-Tao Meng
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Mian Wang
- Medical College, Guangxi University, Nanning 530004, P. R. China
| | - Shu-Jiang Tu
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Wen-Juan Hao
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
| | - Jianyi Wang
- Medical College, Guangxi University, Nanning 530004, P. R. China
| | - Bo Jiang
- School of Chemistry & Materials Science, Jiangsu Key Laboratory of Green Synthetic Chemistry for Functional Materials, Jiangsu Normal University, Xuzhou 221116, P. R. China
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22
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Li TY, Shlian DG, Djurovich PI, Thompson ME. A Luminescent Two-Coordinate Au I Bimetallic Complex with a Tandem-Carbene Structure: A Molecular Design for the Enhancement of TADF Radiative Decay Rate. Chemistry 2021; 27:6191-6197. [PMID: 33561304 DOI: 10.1002/chem.202100512] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2021] [Indexed: 12/15/2022]
Abstract
A luminescent bimetallic AuI complex comprised of N-heterocyclic carbene (NHC) and carbazole (Cz) ligands, that is, (NHC')Au(NHC)AuCz has been synthesized and studied. Both carbene ligands in the bimetallic complex act as electron acceptors in tandem to increase the energy separation between the ground and excited state, which is higher than those found in either monometallic analogue, (NHC)AuCz and (NHC')AuCz. A coplanar geometry designed into the tandem complex ensures sufficient electronic coupling between the π-orbitals of the ligands to impart a strong oscillator strength to the singlet intra-ligand charge-transfer (1 ICT) transition. Theoretical modelling indicates that the emissive ICT excited state involves both NHC ligands. The tandem complex gives blue luminescence (λmax =480 nm) with a high photoluminescent quantum yield (ΦPL =0.80) with a short decay lifetime (τ=0.52 μs). Temperature-dependent photophysical studies indicate that emission is via thermally assisted delayed fluorescence (TADF) and give a small singlet-triplet energy difference (ΔEST =50 meV, 400 cm-1 ) consistent with the short TADF lifetime.
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Affiliation(s)
- Tian-Yi Li
- Department of Chemistry, University of Southern California, Los Angeles, California, 90089, USA
| | - Daniel G Shlian
- Department of Chemistry, Columbia University, New York, 10027, USA
| | - Peter I Djurovich
- Department of Chemistry, University of Southern California, Los Angeles, California, 90089, USA
| | - Mark E Thompson
- Department of Chemistry, University of Southern California, Los Angeles, California, 90089, USA
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23
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Zhang X, Mei Y, Li Y, Hu J, Huang D, Bi Y. Visible‐Light‐Mediated Functionalization of Aryl Diazonium Salts. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000636] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Xin Zhang
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Yaoyao Mei
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Yangyang Li
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Jingang Hu
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Dayun Huang
- Department of Chemistry Lishui University No. 1, Xueyuan Road Lishui City 323000 Zhejiang Province P. R. China
| | - Yicheng Bi
- Qingdao University of Science & Technology
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24
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Wang J, Hou H, Hu Y, Lin J, Wu M, Zheng Z, Xu X. Visible-light-induced direct construction of amide bond from carboxylic acids with amines in aqueous solution. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2020.152801] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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25
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Affiliation(s)
- Sina Witzel
- 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
- Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Jin Xie
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, Chemistry and Biomedicine Innovation Center (ChemBIC), School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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26
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Winter M, Limberg N, Ellwanger MA, Pérez‐Bitrián A, Sonnenberg K, Steinhauer S, Riedel S. Trifluoromethylation of [AuF 3 (SIMes)]: Preparation and Characterization of [Au(CF 3 ) x F 3-x (SIMes)] (x=1-3) Complexes. Chemistry 2020; 26:16089-16097. [PMID: 32668044 PMCID: PMC7756667 DOI: 10.1002/chem.202002940] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Indexed: 12/15/2022]
Abstract
Trifluoromethylation of [AuF3 (SIMes)] with the Ruppert-Prakash reagent TMSCF3 in the presence of CsF yields the product series [Au(CF3 )x F3-x (SIMes)] (x=1-3). The degree of trifluoromethylation is solvent dependent and the ratio of the species can be controlled by varying the stoichiometry of the reaction, as evidenced from the 19 F NMR spectra of the corresponding reaction mixtures. The molecular structures in the solid state of trans-[Au(CF3 )F2 (SIMes)] and [Au(CF3 )3 (SIMes)] are presented, together with a selective route for the synthesis of the latter complex. Correlation of the calculated SIMes affinity with the carbene carbon chemical shift in the 13 C NMR spectrum reveals that trans-[Au(CF3 )F2 (SIMes)] and [Au(CF3 )3 (SIMes)] nicely follow the trend in Lewis acidities of related organo gold(III) complexes. Furthermore, a new correlation between the Au-Ccarbene bond length of the molecular structure in the solid state and the chemical shift of the carbene carbon in the 13 C NMR spectrum is presented.
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Affiliation(s)
- Marlon Winter
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
| | - Niklas Limberg
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
| | - Mathias A. Ellwanger
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
| | - Alberto Pérez‐Bitrián
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
- On leave from: Instituto de Síntesis Química y Catálisis Homogénea (iSQCH)CSIC-Universidad de ZaragozaC/ Pedro Cerbuna 1250009ZaragozaSpain
| | - Karsten Sonnenberg
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
| | - Simon Steinhauer
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
| | - Sebastian Riedel
- Fachbereich Biologie, Chemie, PharmazieInstitut für Chemie und Biochemie—Anorganische ChemieFabeckstr. 34/3614195BerlinGermany
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27
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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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28
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Till NA, Tian L, Dong Z, Scholes GD, MacMillan DWC. Mechanistic Analysis of Metallaphotoredox C–N Coupling: Photocatalysis Initiates and Perpetuates Ni(I)/Ni(III) Coupling Activity. J Am Chem Soc 2020; 142:15830-15841. [DOI: 10.1021/jacs.0c05901] [Citation(s) in RCA: 82] [Impact Index Per Article: 20.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Nicholas A. Till
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Lei Tian
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Zhe Dong
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
| | - Gregory D. Scholes
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - David W. C. MacMillan
- Merck Center for Catalysis at Princeton University, Princeton, New Jersey 08544, United States
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29
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Huang B, Hu M, Toste FD. Homogeneous Gold Redox Chemistry: Organometallics, Catalysis, and Beyond. TRENDS IN CHEMISTRY 2020; 2:707-720. [PMID: 34341775 PMCID: PMC8321390 DOI: 10.1016/j.trechm.2020.04.012] [Citation(s) in RCA: 101] [Impact Index Per Article: 25.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Gold redox chemistry holds the promise of unique reactivities and selectivities that are different to other transition metals. Recent studies have utilized strain release, ligand design, and photochemistry to promote the otherwise sluggish oxidative addition to Au(I) complexes. More details on the reductive elimination from Au(III) complexes have also been revealed. These discoveries have facilitated the development of gold redox catalysis and will continue to offer mechanistic insight and inspiration for other transition metals. This review highlights how research in organometallic chemistry has led to gold redox catalysis, as well as applications in materials science, bioconjugation, and radiochemical synthesis.
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Affiliation(s)
- Banruo Huang
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
| | - Mingyou Hu
- Department of Chemistry, School of Science, Xi’an Key Laboratory of Sustainable Energy Material Chemistry, MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, Xi’an Jiaotong University, Xi’an 710049, PR China
| | - F. Dean Toste
- Department of Chemistry, University of California, Berkeley, Berkeley, CA 94720, USA
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30
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Fang R, Kirillov AM, Yang L. DFT study on the “Silver effect” in gold-catalyzed hydroamination of terminal alkynyl sulfamides. MOLECULAR CATALYSIS 2020. [DOI: 10.1016/j.mcat.2020.110847] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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31
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Mayans JG, Suppo JS, Echavarren AM. Photoredox-Assisted Gold-Catalyzed Arylative Alkoxycyclization of 1,6-Enynes. Org Lett 2020; 22:3045-3049. [PMID: 32243187 DOI: 10.1021/acs.orglett.0c00799] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The photoredox-assisted gold-catalyzed arylative cyclization of 1,6-enynes with aryldiazonium salts gives rise to cyclization products with the opposite configuration at the alkene than that obtained by gold(I)-catalyzed alkoxycyclization. The reaction occurs under mild conditions and shows high functional group tolerance.
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Affiliation(s)
- Joan G Mayans
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Orgànica i Analı́tica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Jean-Simon Suppo
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Orgànica i Analı́tica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
| | - Antonio M Echavarren
- Institute of Chemical Research of Catalonia (ICIQ), Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007 Tarragona, Spain.,Departament de Quı́mica Orgànica i Analı́tica, Universitat Rovira i Virgili, C/Marcel·lí Domingo s/n, 43007 Tarragona, Spain
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32
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Tzouras NV, Saab M, Janssens W, Cauwenbergh T, Van Hecke K, Nahra F, Nolan SP. Simple Synthetic Routes to N-Heterocyclic Carbene Gold(I)-Aryl Complexes: Expanded Scope and Reactivity. Chemistry 2020; 26:5541-5551. [PMID: 32077182 DOI: 10.1002/chem.202000876] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Indexed: 12/31/2022]
Abstract
The discovery of sustainable and scalable synthetic protocols leading to gold-aryl compounds bearing N-heterocyclic carbene (NHC) ligands sparked an investigation of their reactivity and potential utility as organometallic synthons. The use of a mild base and green solvents provide access to these compounds, starting from widely available boronic acids and various [Au(NHC)Cl] complexes, with reactions taking place under air, at room temperature and leading to high yields with unprecedented ease. One compound, (N,N'-bis[2,6-(di-isopropyl)phenyl]imidazol-2-ylidene)(4-methoxyphenyl)gold, ([Au(IPr)(4-MeOC6 H4 )]), was synthesized on a multigram scale and used to gauge the reactivity of this class of compounds towards C-H/N-H bonds and with various acids, revealing simple pathways to gold-based species that possess attractive properties as materials, reagents and/or catalysts.
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Affiliation(s)
- Nikolaos V Tzouras
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Marina Saab
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Wim Janssens
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Thibault Cauwenbergh
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Kristof Van Hecke
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
| | - Fady Nahra
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
- Separation and Conversion Technology Unit, VITO (Flemish Institute for Technological Research), Boeretang 200, 2400, Mol, Belgium
| | - Steven P Nolan
- Department of Chemistry and Centre for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, 9000, Ghent, Belgium
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33
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Visible‐Light‐Assisted Gold‐Catalyzed Fluoroarylation of Allenoates. Angew Chem Int Ed Engl 2020; 59:5242-5247. [DOI: 10.1002/anie.201916471] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/17/2020] [Indexed: 01/17/2023]
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34
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Tang H, Zhang X, Zhang Y, Feng C. Visible‐Light‐Assisted Gold‐Catalyzed Fluoroarylation of Allenoates. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916471] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Hai‐Jun Tang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Xinggui Zhang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Yu‐Feng Zhang
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
| | - Chao Feng
- Institute of Advanced SynthesisSchool of Chemistry and Molecular EngineeringNanjing Tech University 30 South Puzhu Road Nanjing 211816 P. R. China
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35
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Yadav N, Ansari MD, Yadav VB, Verma A, Tiwari SK, Ansari S, Siddiqui IR. Metal-free visible-light-mediated organophotoredox catalysis: synthesis of 3-functionalized indole via C-C, C-N bond formation. Mol Divers 2020; 25:1103-1109. [PMID: 32016772 DOI: 10.1007/s11030-020-10044-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Accepted: 01/22/2020] [Indexed: 11/25/2022]
Abstract
A visible-light-mediated, mild and one-pot three-component reaction in the presence of organophotoredox catalyst Eosin Y using EtOH:H2O as reaction medium for the synthesis of 3-functionalized indole derivatives was developed. Visible light used in the protocol is green, inexpensive, readily available energy source. The sustainable reagents make the protocol compatible with green chemistry demands.
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Affiliation(s)
- Neetu Yadav
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Mohd Danish Ansari
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Vijay B Yadav
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Ankit Verma
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Saurabh K Tiwari
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - Saif Ansari
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India
| | - I R Siddiqui
- Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad, 211002, India.
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36
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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.
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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
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37
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Rodriguez J, Adet N, Saffon-Merceron N, Bourissou D. Au(i)/Au(iii)-Catalyzed C–N coupling. Chem Commun (Camb) 2020; 56:94-97. [DOI: 10.1039/c9cc07666b] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Gold-catalyzed coupling of aryl iodides and amines via a ligand-enabled 2e redox cycle.
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Affiliation(s)
- Jessica Rodriguez
- CNRS/Université Paul Sabatier
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069)
- 31062 Toulouse Cedex 09
- France
| | - Nicolas Adet
- CNRS/Université Paul Sabatier
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069)
- 31062 Toulouse Cedex 09
- France
| | | | - Didier Bourissou
- CNRS/Université Paul Sabatier
- Laboratoire Hétérochimie Fondamentale et Appliquée (LHFA, UMR 5069)
- 31062 Toulouse Cedex 09
- France
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38
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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: 101] [Impact Index Per Article: 20.2] [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.
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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
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39
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Portugués A, López‐García I, Jiménez‐Bernad J, Bautista D, Gil‐Rubio J. Photoinitiated Reactions of Haloperfluorocarbons with Gold(I) Organometallic Complexes: Perfluoroalkyl Gold(I) and Gold(III) Complexes. Chemistry 2019; 25:15535-15547. [DOI: 10.1002/chem.201903058] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Indexed: 11/11/2022]
Affiliation(s)
- Alejandro Portugués
- Departamento de Química InorgánicaFacultad de QuímicaUniversidad de Murcia Campus de Espinardo 30100 Murcia Spain
| | - Inmaculada López‐García
- Departamento de Química InorgánicaFacultad de QuímicaUniversidad de Murcia Campus de Espinardo 30100 Murcia Spain
| | - Javier Jiménez‐Bernad
- Departamento de Química InorgánicaFacultad de QuímicaUniversidad de Murcia Campus de Espinardo 30100 Murcia Spain
| | - Delia Bautista
- ACTI.Universidad de Murcia Campus de Espinardo 30100 Murcia Spain
| | - Juan Gil‐Rubio
- Departamento de Química InorgánicaFacultad de QuímicaUniversidad de Murcia Campus de Espinardo 30100 Murcia Spain
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40
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Taschinski S, Döpp R, Ackermann M, Rominger F, Vries F, Menger MFSJ, Rudolph M, Hashmi ASK, Klein JEMN. Light‐Induced Mechanistic Divergence in Gold(I) Catalysis: Revisiting the Reactivity of Diazonium Salts. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201908268] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Svenja Taschinski
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and EngineeringUniversity of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - René Döpp
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Martin Ackermann
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Frank Rominger
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Folkert Vries
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and EngineeringUniversity of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Maximilian F. S. J. Menger
- Zernike Institute for Advanced MaterialsFaculty of Science and EngineeringUniversity of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
| | - Matthias Rudolph
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutHeidelberg University Im Neuenheimer Feld 270 69120 Heidelberg Germany
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz University Jeddah 21589 Saudi Arabia
| | - Johannes E. M. N. Klein
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and EngineeringUniversity of Groningen Nijenborgh 4 9747 AG Groningen The Netherlands
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41
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Taschinski S, Döpp R, Ackermann M, Rominger F, de Vries F, Menger MFSJ, Rudolph M, Hashmi ASK, Klein JEMN. Light-Induced Mechanistic Divergence in Gold(I) Catalysis: Revisiting the Reactivity of Diazonium Salts. Angew Chem Int Ed Engl 2019; 58:16988-16993. [PMID: 31552696 PMCID: PMC6899485 DOI: 10.1002/anie.201908268] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Revised: 09/02/2019] [Indexed: 01/02/2023]
Abstract
In a systematic study of the Au-catalyzed reaction of o-alkynylphenols with aryldiazonium salts, we find that essentially the same reaction conditions lead to a change in mechanism when a light source is applied. If the reaction is carried out at room temperature using a AuI catalyst, the diazonium salt undergoes electrophilic deauration of a vinyl AuI intermediate and provides access to substituted azobenzofurans. If the reaction mixture is irradiated with blue LED light, C-C bond formation due to N2 -extrusion from the diazonium salt is realized selectively, using the same starting materials without the need for an additional photo(redox) catalyst under aerobic conditions. We report a series of experiments demonstrating that the same vinyl AuI intermediate is capable of producing the observed products under photolytic and thermal conditions. The finding that a vinyl AuI complex can directly, without the need for an additional photo(redox) catalyst, result in C-C bond formation under photolytic conditions is contrary to the proposed mechanistic pathways suggested in the literature till date and highlights that the role of oxidation state changes in photoredox catalysis involving Au is thus far only poorly understood and may hold surprises for the future. Computational results indicate that photochemical activation can occur directly from a donor-acceptor complex formed between the vinyl AuI intermediate and the diazonium salt.
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Affiliation(s)
- Svenja Taschinski
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and EngineeringUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - René Döpp
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Martin Ackermann
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Frank Rominger
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - Folkert de Vries
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and EngineeringUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Maximilian F. S. J. Menger
- Zernike Institute for Advanced MaterialsFaculty of Science and EngineeringUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
| | - Matthias Rudolph
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
| | - A. Stephen K. Hashmi
- Organisch-Chemisches InstitutHeidelberg UniversityIm Neuenheimer Feld 27069120HeidelbergGermany
- Chemistry DepartmentFaculty of ScienceKing Abdulaziz UniversityJeddah21589Saudi Arabia
| | - Johannes E. M. N. Klein
- Molecular Inorganic ChemistryStratingh Institute for ChemistryFaculty of Science and EngineeringUniversity of GroningenNijenborgh 49747AGGroningenThe Netherlands
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42
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Akram MO, Das A, Chakrabarty I, Patil NT. Ligand-Enabled Gold-Catalyzed C(sp2)–N Cross-Coupling Reactions of Aryl Iodides with Amines. Org Lett 2019; 21:8101-8105. [DOI: 10.1021/acs.orglett.9b03082] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Manjur O. Akram
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research, Ghaziabad 201 002, India
| | - Avishek Das
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
| | - Indradweep Chakrabarty
- Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411 008, India
- Academy of Scientific and Innovative Research, Ghaziabad 201 002, India
| | - Nitin T. Patil
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Bhopal 462 066, India
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Zhou L, Yang L, Zhang Y, Kirillov AM, Fang R, Han B. Theoretical study on the mechanism and chemoselectivity in gold(i)-catalyzed cycloisomerization of β,β-disubstituted ortho-(alkynyl)styrenes. Org Chem Front 2019. [DOI: 10.1039/c9qo00534j] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The mechanism and chemoselectivity of gold(i)-catalyzed cycloadditions of β,β-disubstituted ortho-(alkynyl)styrenes were explored by DFT calculations.
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Affiliation(s)
- Lin Zhou
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Li Yang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Yanwen Zhang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Alexander M. Kirillov
- Centro de Química Estrutural
- Instituto Superior Técnico
- Universidade de Lisboa
- Lisbon
- Portugal
| | - Ran Fang
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
| | - Bing Han
- State Key Laboratory of Applied Organic Chemistry and Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province
- College of Chemistry and Chemical Engineering
- Lanzhou University
- Lanzhou 730000
- P. R. China
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