1
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Sorbelli D, Belpassi L, Belanzoni P. Mechanistic Study of Alkyne Insertion into Cu-Al and Au-Al Bonds: A Paradigm Shift for Coinage Metal Chemistry. Inorg Chem 2022; 61:21095-21106. [PMID: 36493466 PMCID: PMC9795551 DOI: 10.1021/acs.inorgchem.2c03713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work, the mechanism of the insertion reaction of 3-hexyne into Cu-Al and Au-Al bonds in M-aluminyl (M = Cu, Au) complexes is computationally elucidated. The mechanism is found to be radical-like, with the Cu-Al and Au-Al bonds acting as nucleophiles toward the alkyne, and predicts a less efficient reactivity for the gold-aluminyl complex. The proposed mechanism well rationalizes the kinetic (or thermodynamic) control on the formation of the syn (or anti) insertion product into the Cu-Al bond (i.e., dimetallated alkene) which has been recently reported. A comparative analysis of the electronic structure reveals that the reduced reactivity at the gold site─usually showing higher efficiency than copper as a "standard" electrophile in alkyne activation─arises from a common feature, i.e., the highly stable 6s Au orbital. The relativistic lowering of the 6s orbital, making it more suitable for accepting electron density and thus enhancing the electrophilicity of gold complexes, in the gold-aluminyl system is responsible for a less nucleophilic Au-Al bond and, consequently, a less efficient alkyne insertion. These findings demonstrate that the unconventional electronic structure and the electron-sharing nature of the M-Al bond induce a paradigm shift in the properties of coinage metal complexes. In particular, the peculiar radical-like reactivity, previously shown also with carbon dioxide, suggests that these complexes might efficiently insert/activate other small molecules, opening new and unexplored paths for their reactivity.
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Affiliation(s)
- Diego Sorbelli
- Department
of Chemistry, Biology and Biotechnologies, University of Perugia, Via Elce di Sotto, 8-06123 Perugia, Italy,CNR
Institute of Chemical Science and Technologies ″Giulio Natta″
(CNR-SCITEC), Via Elce di Sotto, 8-06123 Perugia, Italy,
| | - Leonardo Belpassi
- CNR
Institute of Chemical Science and Technologies ″Giulio Natta″
(CNR-SCITEC), Via Elce di Sotto, 8-06123 Perugia, Italy,
| | - Paola Belanzoni
- Department
of Chemistry, Biology and Biotechnologies, University of Perugia, Via Elce di Sotto, 8-06123 Perugia, Italy,CNR
Institute of Chemical Science and Technologies ″Giulio Natta″
(CNR-SCITEC), Via Elce di Sotto, 8-06123 Perugia, Italy,
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2
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Rawat VK, Higashida K, Sawamura M. Construction of Heterobimetallic Catalytic Scaffold with a Carbene-Bipyridine Ligand: Gold–Zinc Two-Metal Catalysis for Intermolecular Addition of O-Nucleophiles to Nonactivated Alkynes. ACS Catal 2022. [DOI: 10.1021/acscatal.2c01701] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Vishal Kumar Rawat
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Kosuke Higashida
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Masaya Sawamura
- Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Kita 21 Nishi 10, Kita-ku, Sapporo, Hokkaido 001-0021, Japan
- Department of Chemistry, Faculty of Science, Hokkaido University, Kita 10 Nishi 8, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
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3
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Unveiling the complexity of the dual gold(I) catalyzed intermolecular hydroamination of alkynes leading to vinylazoles. MOLECULAR CATALYSIS 2022. [DOI: 10.1016/j.mcat.2021.112090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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4
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Mallick RK, Dutta S, Protim Gogoi M, Sahoo AK. Keteniminium Induced Dienone‐Phenol Rearrangement and Intramolecular 6‐
endo
‐dig Cyclization Cascade of Yne‐Dienone. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100198] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Shubham Dutta
- School of Chemistry University of Hyderabad 500046 Hyderabad India
| | | | - Akhila K. Sahoo
- School of Chemistry University of Hyderabad 500046 Hyderabad India
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5
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Abstract
Poly (vinyl ethers) are compounds with great value in the coating industry due to exhibiting properties such as high viscosity, soft adhesiveness, resistance to saponification and solubility in water and organic solvents. However, the main challenge in this field is the synthesis of vinyl ether monomers that can be synthetized by methodologies such as vinyl transfer, reduction of vinyl phosphate ether, isomerization, hydrogenation of acetylenic ethers, elimination, addition of alcohols to alkyne species etc. Nevertheless, the most successful strategy to access to vinyl ether derivatives is the addition of alcohols to alkynes catalyzed by transition metals such as molybdenum, tungsten, ruthenium, palladium, platinum, gold, silver, iridium and rhodium, where gold-NHC catalysts have shown the best results in vinyl ether synthesis. Recently, the hydrophenoxylation reaction was found to proceed through a digold-assisted process where the species that determine the rate of the reaction are PhO-[Au(IPr)] and alkyne-[Au(IPr)]. Later, the improvement of the hydrophenoxylation reaction by using a mixed combination of Cu-NHC and Au-NHC catalysts was also reported. DFT studies confirmed a cost-effective method for the hydrophenoxylation reaction and located the rate-determining step, which turned out to be quite sensitive to the sterical hindrance due to the NHC ligands.
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6
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Lai X, Li Y. DFT Study on Dinuclear Palladium Complex Catalyzed Pyrrole Formation From
tert
‐Butyl Isocyanide and Alkynes. ChemCatChem 2021. [DOI: 10.1002/cctc.202100142] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Xiaoling Lai
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
- School of Chemical Engineering Dalian University of Technology Panjin 124221 P. R. China
| | - Yang Li
- State Key Laboratory of Fine Chemicals Dalian University of Technology Dalian 116023 P. R. China
- School of Chemical Engineering Dalian University of Technology Panjin 124221 P. R. China
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7
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Bo Z, Ji-Jun Z, Sheng H, Dong-Huai T, Jiang-Wei L, Wei Z, Jian L. Base-catalyzed stereoselective hydrophenoxylation and hydrothiolation of hexafluorobutyne. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.151693] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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8
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Anania M, Jašíková L, Zelenka J, Shcherbachenko E, Jašík J, Roithová J. Monoaurated vs. diaurated intermediates: causality or independence? Chem Sci 2019; 11:980-988. [PMID: 34084352 PMCID: PMC8146099 DOI: 10.1039/c9sc05662a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Diaurated intermediates of gold-catalysed reactions have been a long-standing subject of debate. Although diaurated complexes were regarded as a drain of active monoaurated intermediates in catalytic cycles, they were also identified as the products of gold-gold cooperation in dual-activation reactions. This study shows investigation of intermediates in water addition to alkynes catalysed by [(IPr)Au(CH3CN)(BF4)]. Electrospray ionisation mass spectrometry (ESI-MS) allowed us to detect both monoaurated and diaurated complexes in this reaction. Infrared photodissociation spectra of the trapped complexes show that the structure of the intermediates corresponds to α-gold ketone intermediates protonated or aurated at the oxygen atom. Delayed reactant labelling experiments provided the half life of the intermediates in reaction of 1-phenylpropyne (∼7 min) and the kinetic isotope effects for hydrogen introduction to the carbon atom (KIE ∼ 4-6) and for the protodeauration (KIE ∼ 2). The results suggest that the ESI-MS detected monoaurated and diaurated complexes report on species with a very similar or the same kinetics in solution. Kinetic analysis of the overall reaction showed that the reaction rate is first-order dependent on the concentration of the gold catalyst. Finally, all results are consistent with the reaction mechanism proceeding via monoaurated neutral α-gold ketone intermediates only.
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Affiliation(s)
- Mariarosa Anania
- Department of Organic Chemistry, Faculty of Science, Charles University Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Lucie Jašíková
- Department of Organic Chemistry, Faculty of Science, Charles University Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Jan Zelenka
- Institute for Molecules and Materials, Radboud University Heyendaalseweg 135 6525 AJ Nijmegen Netherlands
| | - Elena Shcherbachenko
- Department of Organic Chemistry, Faculty of Science, Charles University Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Juraj Jašík
- Department of Organic Chemistry, Faculty of Science, Charles University Hlavova 2030/8 12843 Prague 2 Czech Republic
| | - Jana Roithová
- Institute for Molecules and Materials, Radboud University Heyendaalseweg 135 6525 AJ Nijmegen Netherlands
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Murai M, Yamamoto M, Takai K. Mechanistic Insights into Rhenium-Catalyzed Regioselective C-Alkenylation of Phenols with Internal Alkynes. Chemistry 2019; 25:15189-15197. [PMID: 31532028 DOI: 10.1002/chem.201903910] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/17/2019] [Indexed: 11/12/2022]
Abstract
A (μ-aryloxo)rhenium complex was isolated and confirmed as a key precatalyst for rhenium-catalyzed ortho-alkenylation (C-alkenylation) of unprotected phenols with alkynes. The reaction exclusively provided ortho-alkenylphenols; the formation of para or multiply alkenylated phenols and hydrophenoxylation (O-alkenylation) products was not observed. Several mechanistic experiments excluded a classical Friedel-Crafts-type mechanism, leading to the proposed phenolic hydroxyl group assisted electrophilic alkenylation as the most plausible reaction mechanism. For this purpose, the use of rhenium, a metal between the early and late transition metals in the periodic table, was key for the activation of both the soft carbon-carbon triple bond of the alkyne and the hard oxygen atom of the phenol, at the same time. ortho-Selective alkenylation with allenes also provided the corresponding adducts with a substitution pattern different from that obtained by the addition reaction with alkynes.
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Affiliation(s)
- Masahito Murai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Furo, Chikusa, Nagoya, 464-8602, Japan
| | - Masaki Yamamoto
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
| | - Kazuhiko Takai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushimanaka, Kita-ku, Okayama, 700-8530, Japan
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10
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Praveen C. Carbophilic activation of π-systems via gold coordination: Towards regioselective access of intermolecular addition products. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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11
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Wang W, Cui L, Sun P, Shi L, Yue C, Li F. Reusable N-Heterocyclic Carbene Complex Catalysts and Beyond: A Perspective on Recycling Strategies. Chem Rev 2018; 118:9843-9929. [DOI: 10.1021/acs.chemrev.8b00057] [Citation(s) in RCA: 137] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenlong Wang
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Lifeng Cui
- School of Environment and Civil Engineering, Dongguan University of Technology, Dongguan 523808, China
| | - Peng Sun
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Lijun Shi
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Chengtao Yue
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
| | - Fuwei Li
- State Key Laboratory for Oxo Synthesis and Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
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12
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González-Belman OF, Jiménez-Halla JOC, Nahra F, Cazin CSJ, Poater A. The role of the metal in the dual-metal catalysed hydrophenoxylation of diphenylacetylene. Catal Sci Technol 2018. [DOI: 10.1039/c8cy00510a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Computational studies on homo- and heterobimetallic group 11 metal-NHC complexes were carried out, providing insights into the catalysed-hydrophenoxylation of alkynes.
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Affiliation(s)
- Oscar F. González-Belman
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | | | - Fady Nahra
- Department of Chemistry
- Centre for Sustainable Chemistry
- Ghent University
- 9000 Gent
- Belgium
| | - Catherine S. J. Cazin
- Department of Chemistry
- Centre for Sustainable Chemistry
- Ghent University
- 9000 Gent
- Belgium
| | - Albert Poater
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
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13
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Abdellah I, Poater A, Lohier JF, Gaumont AC. Au(i)-Catalyzed hydroarylation of alkenes with N,N-dialkylanilines: a dual gold catalysis concept. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01309h] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In the present work, we report the efficiency of the commercially available [(PPh3)AuCl] complex in combination with a set of potassium salts to catalyze the hydroarylation of a broad variety of alkenes using N,N-dialkylanilines, leading to full conversion and complete selectivity toward the Markovnikov products.
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Affiliation(s)
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química
- Universitat de Girona
- 17003 Girona
- Spain
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14
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Nelson DJ, Nolan SP. Hydroxide complexes of the late transition metals: Organometallic chemistry and catalysis. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2017.10.012] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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15
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16
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Hicken A, White AJP, Crimmin MR. Selective Reduction of CO2
to a Formate Equivalent with Heterobimetallic Gold- - -Copper Hydride Complexes. Angew Chem Int Ed Engl 2017; 56:15127-15130. [DOI: 10.1002/anie.201709072] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Indexed: 12/22/2022]
Affiliation(s)
- Alexandra Hicken
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
| | - Andrew J. P. White
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
| | - Mark R. Crimmin
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
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17
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Hicken A, White AJP, Crimmin MR. Selective Reduction of CO2
to a Formate Equivalent with Heterobimetallic Gold- - -Copper Hydride Complexes. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201709072] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Alexandra Hicken
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
| | - Andrew J. P. White
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
| | - Mark R. Crimmin
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
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18
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Casals-Cruañas È, González-Belman OF, Besalú-Sala P, Nelson DJ, Poater A. The preference for dual-gold(i) catalysis in the hydro(alkoxylation vs. phenoxylation) of alkynes. Org Biomol Chem 2017; 15:6416-6425. [DOI: 10.1039/c7ob01457k] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Dinuclear gold complexes and their use in catalysis have received significant recent attention, but there are few critical comparisons of mono- versus dual gold-catalysed pathways.
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Affiliation(s)
- Èric Casals-Cruañas
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | - Oscar F. González-Belman
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | - Pau Besalú-Sala
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
| | - David J. Nelson
- WestCHEM Department of Pure and Applied Chemistry
- University of Strathclyde
- Glasgow
- UK
| | - Albert Poater
- Institut de Química Computacional i Catàlisi
- Departament de Química
- University de Girona
- 17003 Girona
- Spain
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