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Saha S, Krause JA, Guan H. C(sp)-H, S-H, and Sn-H Bond Activation with a Cobalt(I) Pincer Complex. Inorg Chem 2024; 63:13689-13699. [PMID: 38976491 DOI: 10.1021/acs.inorgchem.4c01993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/10/2024]
Abstract
This study focuses on the stoichiometric reactions of {2,6-(iPr2PO)2C6H3}Co(PMe3)2 with terminal alkynes, thiols, and tin hydrides as part of an effort to develop catalytic, two-electron processes with cobalt. This specific Co(I) pincer complex proves to be effective for cleaving the C(sp)-H, S-H, and Sn-H bonds to give oxidative addition products with the general formula {2,6-(iPr2PO)2C6H3}CoHX(PMe3) (X = alkynyl, thiolate, and stannyl groups) along with the free PMe3. These reactions typically reach completion when the substituents on acetylene, sulfur, and tin are electron-withdrawing groups (e.g., phenyl, pyridyl, and alkenyl groups). In contrast, alkyl-substituted acetylenes, 1-pentanethiol, and tributyltin hydride are partially converted due to the equilibria with the corresponding oxidative addition products. The Co(I) pincer complex is not a hydrothiolation catalyst but capable of catalyzing the hydrostannation of terminal alkynes with Ph3SnH to produce β-(Z)-alkenylstannanes selectively.
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Affiliation(s)
- Sayantani Saha
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Jeanette A Krause
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Hairong Guan
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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2
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Chand T, Gupta P, Oza N, Kapur M. Cobalt(II)-catalyzed peri-C(sp 2)-H selective hydroxylation of naphthalene monoimides. Chem Commun (Camb) 2024; 60:1770-1773. [PMID: 38252318 DOI: 10.1039/d3cc06050k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2024]
Abstract
Reported herein is an efficient and eco-friendly peri-selective monohydroxylation of naphthalene monoimides (NMIs) to access 4-hydroxy NMIs, which possess multidisciplinary applications. The key aspect of this method is the utilization of cobalt(II)-catalysis via a single electron transfer mechanism to achieve site-selective C(sp2)-hydroxylation. Transformation of the hydroxyl group into pseudohalides reveals its applications towards cross-coupling reactions.
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Affiliation(s)
- Tapasi Chand
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, MP, India.
| | - Princi Gupta
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, MP, India.
| | - Nehali Oza
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, MP, India.
| | - Manmohan Kapur
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhopal Bypass Road, Bhauri, Bhopal 462 066, MP, India.
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3
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Pereira A, Albornoz C, Trofymchuk OS. Data-Driven Analysis of Reactions Catalyzed by [CoCp*(CO)I 2]. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Alfredo Pereira
- Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Universidad de Chile, Sergio Livingstone 1007, Casilla 233, Santiago, Metropolitan Region 8380492, Chile
| | - Camilo Albornoz
- C. Albornoz, Instituto de Química de Recursos Naturales, Universidad de Talca, Talca, Maule Region 3460000, Chile
| | - Oleksandra S. Trofymchuk
- Facultad de Ciencias Químicas y Farmacéuticas, Departamento de Química Orgánica y Fisicoquímica, Universidad de Chile, Sergio Livingstone 1007, Casilla 233, Santiago, Metropolitan Region 8380492, Chile
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4
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Prasad S, Tantillo DJ. Roads Not Taken: Mechanism and Origins of Regio- and Chemoselectivity of Directed Co III-Catalyzed Alkenylation of N-Pyridyl 2-Pyridone. Organometallics 2022. [DOI: 10.1021/acs.organomet.1c00662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Supreeth Prasad
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
| | - Dean J. Tantillo
- Department of Chemistry, University of California─Davis, Davis, California 95616, United States
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5
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Mandal R, Garai B, Sundararaju B. Weak-Coordination in C–H Bond Functionalizations Catalyzed by 3d Metals. ACS Catal 2022. [DOI: 10.1021/acscatal.1c05267] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Rajib Mandal
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
| | - Bholanath Garai
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
| | - Basker Sundararaju
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh208016, India
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6
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Tahara K, Takezaki S, Ozawa Y, Abe M. Synthesis of an Organometallic Alkyl-Co(III) Complex with Amidoquinoline Directing Groups via C(sp3)-H Activation and its UV-vis/NMR Spectroscopic, Crystallographic, DFT, and Electrochemical Studies. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2022. [DOI: 10.1246/bcsj.20210425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Keishiro Tahara
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Shun Takezaki
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Yoshiki Ozawa
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
| | - Masaaki Abe
- Department of Material Science, Graduate School of Science, University of Hyogo, 3-2-1 Kouto, Kamigori, Ako, Hyogo 678-1297, Japan
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7
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Hammarback LA, Eastwood JB, Burden TJ, Pearce CJ, Clark IP, Towrie M, Robinson A, Fairlamb IJS, Lynam JM. A comprehensive understanding of carbon-carbon bond formation by alkyne migratory insertion into manganacycles. Chem Sci 2022; 13:9902-9913. [PMID: 36199635 PMCID: PMC9431456 DOI: 10.1039/d2sc02562k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2022] [Accepted: 07/08/2022] [Indexed: 11/25/2022] Open
Abstract
Migratory insertion (MI) is one of the most important processes underpinning the transition metal-catalysed formation of C–C and C–X bonds. In this work, a comprehensive model of MI is presented, based on the direct observation of the states involved in the coupling of alkynes with cyclometallated ligands, augmented with insight from computational chemistry. Time-resolved spectroscopy demonstrates that photolysis of complexes [Mn(C^N)(CO)4] (C^N = cyclometalated ligand) results in ultra-fast dissociation of a CO ligand. Performing the experiment in a toluene solution of an alkyne results in the initial formation of a solvent complex fac-[Mn(C^N)(toluene)(CO)3]. Solvent substitution gives an η2-alkyne complex fac-[Mn(C^N)(η2-R1C2R2)(CO)3] which undergoes MI of the unsaturated ligand into the Mn–C bond. These data allowed for the dependence of second order rate constants for solvent substitution and first order rate constants for C–C bond formation to be determined. A systematic investigation into the influence of the alkyne and C^N ligand on this process is reported. The experimental data enabled the development of a computational model for the MI reaction which demonstrated that a synergic interaction between the metal and the nascent C–C bond controls both the rate and regiochemical outcome of the reaction. The time-resolved spectroscopic method enabled the observation of a multi-step reaction occurring over 8 orders of magnitude in time, including the formation of solvent complexes, ligand substitution and two sequential C–C bond formation steps. Time-resolved spectroscopy and computational chemistry have informed a unified model of alkyne migratory insertion, an important processes underpinning the transition metal-catalysed formation of C–C and C–X bonds.![]()
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Affiliation(s)
| | | | - Thomas J Burden
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Callum J Pearce
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Ian P Clark
- Central Laser Facility, Research Complex at Harwell, STFC Rutherford Appleton Laboratory, Harwell Campus Didcot Oxfordshire OX11 0QX UK
| | - Michael Towrie
- Central Laser Facility, Research Complex at Harwell, STFC Rutherford Appleton Laboratory, Harwell Campus Didcot Oxfordshire OX11 0QX UK
| | - Alan Robinson
- Syngenta Crop Protection AG Münchwilen Breitenloh 5,4333 Switzerland
| | - Ian J S Fairlamb
- Department of Chemistry, University of York Heslington York YO10 5DD UK
| | - Jason M Lynam
- Department of Chemistry, University of York Heslington York YO10 5DD UK
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8
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Mandal R, Garai B, Sundararaju B. Cp*Co III-Catalyzed C(7)-H Bond Annulation of Indolines with Alkynes. J Org Chem 2021; 86:9407-9417. [PMID: 34213334 DOI: 10.1021/acs.joc.1c00713] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
An efficient protocol for the synthesis of biologically essential pyrroloquinolinones has been developed under Cp*CoIII catalysis, which involves a cascade reaction of C(7)-H alkenylation with alkynes followed by nucleophilic addition. A wide variety of internal alkynes including enyne, diyne, and ynamide and more challenging terminal alkynes were successfully employed for the annulation in good to excellent yield with high regioselectivity.
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Affiliation(s)
- Rajib Mandal
- Fine Chemical Laboratory, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India 208016
| | - Bholanath Garai
- Fine Chemical Laboratory, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India 208016
| | - Basker Sundararaju
- Fine Chemical Laboratory, Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, Uttar Pradesh, India 208016
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9
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Zhang S, Zhai X, Song Y, Feng L, Tung CH, Wang W. Insertion of BH3 into a Cobalt–Aryl Bond: Synthetic Routes to Arylborohydride and Borane-Amino Hydride Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00174] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shengnan Zhang
- School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250100, People’s Republic of China
| | - Xiaofang Zhai
- School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250100, People’s Republic of China
| | - Yike Song
- School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250100, People’s Republic of China
| | - Lei Feng
- School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250100, People’s Republic of China
| | - Chen-Ho Tung
- School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250100, People’s Republic of China
| | - Wenguang Wang
- School of Chemistry and Chemical Engineering, Shandong University, No. 27 South Shanda Road, Jinan, 250100, People’s Republic of China
- College of Chemistry, Beijing Normal University, No. 19 Xinjiekouwai Street, Haidian District, Beijing, 100875, People’s Republic of China
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10
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López‐Resano S, Martínez de Salinas S, Garcés‐Pineda FA, Moneo‐Corcuera A, Galán‐Mascarós JR, Maseras F, Pérez‐Temprano MH. Redefining the Mechanistic Scenario of Carbon−Sulfur Nucleophilic Coupling via High‐Valent Cp*Co
IV
Species. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202101390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Sara López‐Resano
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- Departament de Química Analítica i Química Orgànica Universitat Rovira i Virgili, C/ Marcelli Domingo s/n 43007 Tarragona Spain
| | - Sara Martínez de Salinas
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Felipe A. Garcés‐Pineda
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Andrea Moneo‐Corcuera
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - José Ramón Galán‐Mascarós
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
- ICREA Passeig Lluis Companys, 23 08010 Barcelona Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
| | - Mónica H. Pérez‐Temprano
- Institute of Chemical Research of Catalonia (ICIQ) The Barcelona Institute of Science and Technology Av. Països Catalans 16 43007 Tarragona Spain
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11
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Abstract
Sustainable transformations towards the production of valuable chemicals constantly attract interest, both in terms of academic and applied research. C–H activation has long been scrutinized in this regard, given that it offers a straightforward pathway to prepare compounds of great significance. In this context, directing groups (DG) have paved the way for chemical transformations that had not been achievable using traditional reactions. Few steps, high yields, selectivity and activation of inert substrates are some of the invaluable assets of directed catalysis. Additionally, the employment of traceless directing groups (TDG) greatly improves and simplifies this strategy, enabling the realization of multi-step reactions in one-pot, cascade procedures. Cheap, abundant, readily available transition metal salts and complexes can catalyze a plethora of reactions employing TDGs, usually under low catalyst loadings—rarely under stoichiometric amounts, leading in greater atom economy and milder conditions with increased yields and step-economy. This review article summarizes all the work done on TDG-assisted catalysis with manganese, iron, cobalt, nickel, or copper catalysts, and discusses the structure-activity relationships observed, by presenting the catalytic pathways and range of transformations reported thus far.
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12
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López-Resano S, Martínez de Salinas S, Garcés-Pineda FA, Moneo-Corcuera A, Galán-Mascarós JR, Maseras F, Pérez-Temprano MH. Redefining the Mechanistic Scenario of Carbon-Sulfur Nucleophilic Coupling via High-Valent Cp*Co IV Species. Angew Chem Int Ed Engl 2021; 60:11217-11221. [PMID: 33739577 DOI: 10.1002/anie.202101390] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 03/08/2021] [Indexed: 12/26/2022]
Abstract
The potential access to CoIV species for promoting transformations that are particularly challenging at CoIII still remains underexploited in the context of Cp*Co-catalyzed C-H functionalization reactions. Herein, we disclose a combined experimental and computational strategy for uncovering the participation of Cp*CoIV species in a Cp*Co-mediated C-S bond-reductive elimination. These studies support the intermediacy of high-valent Cp*Co species in C-H functionalization reactions, under oxidative conditions, when involving nucleophilic coupling partners.
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Affiliation(s)
- Sara López-Resano
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,Departament de Química Analítica i Química Orgànica, Universitat Rovira i, Virgili, C/ Marcelli Domingo s/n, 43007, Tarragona, Spain
| | - Sara Martínez de Salinas
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Felipe A Garcés-Pineda
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Andrea Moneo-Corcuera
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - José Ramón Galán-Mascarós
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain.,ICREA, Passeig Lluis Companys, 23, 08010, Barcelona, Spain
| | - Feliu Maseras
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
| | - Mónica H Pérez-Temprano
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av. Països Catalans 16, 43007, Tarragona, Spain
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13
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Hammarback LA, Aucott BJ, Bray JTW, Clark IP, Towrie M, Robinson A, Fairlamb IJS, Lynam JM. Direct Observation of the Microscopic Reverse of the Ubiquitous Concerted Metalation Deprotonation Step in C-H Bond Activation Catalysis. J Am Chem Soc 2021; 143:1356-1364. [PMID: 33428402 DOI: 10.1021/jacs.0c10409] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The ability of carboxylate groups to promote the direct functionalization of C-H bonds in organic compounds is unquestionably one of the most important discoveries in modern chemical synthesis. Extensive computational studies have indicated that this process proceeds through the deprotonation of a metal-coordinated C-H bond by the basic carboxylate, yet experimental validation of these predicted mechanistic pathways is limited and fraught with difficulty, mainly as rapid proton transfer is frequently obscured in ensemble measures in multistep reactions (i.e., a catalytic cycle consisting of several steps). In this paper, we describe a strategy to experimentally observe the microscopic reverse of the key C-H bond activation step underpinning functionalization processes (viz. M-C bond protonation). This has been achieved by utilizing photochemical activation of the thermally robust precursor [Mn(ppy)(CO)4] (ppy = metalated 2-phenylpyridine) in neat acetic acid. Time-resolved infrared spectroscopy on the picosecond-millisecond time scale allows direct observation of the states involved in the proton transfer from the acetic acid to the cyclometalated ligand, providing direct experimental evidence for the computationally predicted reaction pathways. The power of this approach to probe the mechanistic pathways in transition-metal-catalyzed reactions is demonstrated through experiments performed in toluene solution in the presence of PhC2H and HOAc. These allowed for the observation of sequential displacement of the metal-bound solvent by the alkyne, C-C bond formation though insertion in the Mn-C bond, and a slower protonation step by HOAc to generate the product of a Mn(I)-catalyzed C-H bond functionalization reaction.
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Affiliation(s)
| | - Benjamin J Aucott
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Joshua T W Bray
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Ian P Clark
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX, U.K
| | - Michael Towrie
- Central Laser Facility, STFC Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, Oxfordshire OX11 0QX, U.K
| | - Alan Robinson
- Syngenta Crop Protection AG, Breitenloh 5, Münchwilen 433, Switzerland
| | - Ian J S Fairlamb
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
| | - Jason M Lynam
- Department of Chemistry, University of York, Heslington, York YO10 5DD, U.K
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14
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Wu F, Deraedt C, Cornaton Y, Contreras-Garcia J, Boucher M, Karmazin L, Bailly C, Djukic JP. Making Base-Assisted C–H Bond Activation by Cp*Co(III) Effective: A Noncovalent Interaction-Inclusive Theoretical Insight and Experimental Validation. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00253] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fule Wu
- Laboratoire de Chimie et Systémique Organométalliques, Institut de Chimie de Strasbourg UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France
| | - Christophe Deraedt
- Laboratoire de Chimie et Systémique Organométalliques, Institut de Chimie de Strasbourg UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France
| | - Yann Cornaton
- Laboratoire de Chimie et Systémique Organométalliques, Institut de Chimie de Strasbourg UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France
| | - Julia Contreras-Garcia
- Laboratoire de Chimie Théorique UMR 7616 CNRS, Sorbonne Université, Site Jussieu, 4 place Jussieu, 75052 Paris cedex, France
| | - Mélanie Boucher
- Laboratoire de Chimie et Systémique Organométalliques, Institut de Chimie de Strasbourg UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France
| | - Lydia Karmazin
- Service de Radiocristallographie, Fédération de Chimie Le Bel FR 2010, Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Corinne Bailly
- Service de Radiocristallographie, Fédération de Chimie Le Bel FR 2010, Université de Strasbourg, 1 rue Blaise Pascal, 67000 Strasbourg, France
| | - Jean-Pierre Djukic
- Laboratoire de Chimie et Systémique Organométalliques, Institut de Chimie de Strasbourg UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, 67000 Strasbourg, France
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15
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Suslick BA, Tilley TD. Mechanistic Interrogation of Alkyne Hydroarylations Catalyzed by Highly Reduced, Single-Component Cobalt Complexes. J Am Chem Soc 2020; 142:11203-11218. [DOI: 10.1021/jacs.0c04072] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Benjamin A. Suslick
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - T. Don Tilley
- Department of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
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16
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Meyer TH, Oliveira JCA, Ghorai D, Ackermann L. Mechanistische Studien zu Cobalta(III/IV/II)‐Elektrokatalyse: Oxidativ‐induzierte reduktive Eliminierung zur zweifachen C‐H‐Aktivierung. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202002258] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Tjark H. Meyer
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - João C. A. Oliveira
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Debasish Ghorai
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstraße 2 37077 Göttingen Deutschland
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17
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Meyer TH, Oliveira JCA, Ghorai D, Ackermann L. Insights into Cobalta(III/IV/II)-Electrocatalysis: Oxidation-Induced Reductive Elimination for Twofold C-H Activation. Angew Chem Int Ed Engl 2020; 59:10955-10960. [PMID: 32154625 PMCID: PMC7318662 DOI: 10.1002/anie.202002258] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2020] [Indexed: 12/17/2022]
Abstract
The merger of cobalt‐catalyzed C−H activation and electrosynthesis provides new avenues for resource‐economical molecular syntheses, unfortunately their reaction mechanisms remain poorly understood. Herein, we report the identification and full characterization of electrochemically generated high‐valent cobalt(III/IV) complexes as crucial intermediates in electrochemical cobalt‐catalyzed C−H oxygenations. Detailed mechanistic studies provided support for an oxidatively‐induced reductive elimination via highly‐reactive cobalt(IV) intermediates. These key insights set the stage for unprecedented cobaltaelectro two‐fold C−H/C−H activation.
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Affiliation(s)
- Tjark H Meyer
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Gottingen, Germany
| | - João C A Oliveira
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Gottingen, Germany
| | - Debasish Ghorai
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Gottingen, Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie, Georg-August-Universität Göttingen, Tammannstraße 2, 37077, Gottingen, Germany
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18
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Martínez de Salinas S, Sanjosé‐Orduna J, Odena C, Barranco S, Benet‐Buchholz J, Pérez‐Temprano MH. Weakly Coordinated Cobaltacycles: Trapping Catalytically Competent Intermediates in Cp*Co
III
Catalysis. Angew Chem Int Ed Engl 2020; 59:6239-6243. [DOI: 10.1002/anie.201916387] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Sara Martínez de Salinas
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jesús Sanjosé‐Orduna
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Carlota Odena
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Sergio Barranco
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jordi Benet‐Buchholz
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Mónica H. Pérez‐Temprano
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
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19
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Martínez de Salinas S, Sanjosé‐Orduna J, Odena C, Barranco S, Benet‐Buchholz J, Pérez‐Temprano MH. Weakly Coordinated Cobaltacycles: Trapping Catalytically Competent Intermediates in Cp*Co
III
Catalysis. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916387] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sara Martínez de Salinas
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jesús Sanjosé‐Orduna
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Carlota Odena
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Sergio Barranco
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Jordi Benet‐Buchholz
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
| | - Mónica H. Pérez‐Temprano
- Institute of Chemical Research of Catalonia (ICIQ) Avgda. Països Catalans 16 43007 Tarragona Spain
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20
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Neale SE, Pantazis DA, Macgregor SA. Accurate computed spin-state energetics for Co(iii) complexes: implications for modelling homogeneous catalysis. Dalton Trans 2020; 49:6478-6487. [DOI: 10.1039/d0dt00993h] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
DLPNO-CCSD(T) calculations provide accurate spin state energetics for a range of Co(iii) complexes and so represent a promising approach to modelling homogeneous catalysis based on Co(iii) species.
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Affiliation(s)
- Samuel E. Neale
- Institute of Chemical Sciences
- Heriot-Watt University
- Edinburgh
- United Kingdom
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