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Sengupta P, Das R, Dhibar P, Paul P, Bhattacharya S. Rhodium and Iridium Mediated C-H and O-H Bond Activation of Two Schiff Base Ligands: Synthesis, Characterization and Catalytic Properties of the Organometallic Complexes. Front Chem 2021; 9:696460. [PMID: 34434917 PMCID: PMC8380818 DOI: 10.3389/fchem.2021.696460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 07/06/2021] [Indexed: 11/13/2022] Open
Abstract
Reaction of [Rh(PPh3)3Cl] with two Schiff base ligands, viz. N-(2′-hydroxyphenyl)furan-2-aldimine (H2L1) and N-(2′-hydroxyphenyl)thiophene-2-aldimine (H2L2), in refluxing toluene affords organorhodium complexes of type [Rh(PPh3)2(L)Cl] (L = L1 and L2). Similar reaction with [Ir(PPh3)3Cl] yields organoiridium complexes of type [Ir(PPh3)2(L) (H)] (L = L1 and L2). Crystal structures of [Rh(PPh3)2(L1)Cl] and [Ir(PPh3)2(L2) (H)] have been determined, where the imine ligands are found to bind to the metal centers as CNO-donors. Structures of [Rh(PPh3)2(L2)Cl] and [Ir(PPh3)2(L1) (H)] have been optimized by density functional theory method. Formation of the organometallic complexes is believed to proceed via C-H and O-H bond activation of the imine ligands. All four complexes show intense absorptions in the visible and ultraviolet regions. Cyclic voltammetry on the complexes shows an oxidation on the positive side of SCE and a reduction on the negative side. The organoiridium complexes are found to efficiently catalyze Suzuki-type C-C cross coupling reactions.
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Affiliation(s)
- Poulami Sengupta
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata, India.,Henkel Limited, Hemel Hempstead, United Kingdom
| | - Rituparna Das
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata, India
| | - Papu Dhibar
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata, India
| | - Piyali Paul
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata, India.,Department of Chemistry and Environment, Heritage Institute of Technology, Kolkata, India
| | - Samaresh Bhattacharya
- Department of Chemistry, Inorganic Chemistry Section, Jadavpur University, Kolkata, India
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2
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Gu S, Chen J, Musgrave CB, Gehman ZM, Habgood LG, Jia X, Dickie DA, Goddard WA, Gunnoe TB. Functionalization of Rh III–Me Bonds: Use of “Capping Arene” Ligands to Facilitate Me–X Reductive Elimination. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00223] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Shunyan Gu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Junqi Chen
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Charles B. Musgrave
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Zoë M. Gehman
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Laurel G. Habgood
- Department of Chemistry, Rollins College, Winter Park, Florida 32789, United States
| | - Xiaofan Jia
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - William A. Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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3
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Musgrave CB, Zhu W, Coutard N, Ellena JF, Dickie DA, Gunnoe TB, Goddard WA. Mechanistic Studies of Styrene Production from Benzene and Ethylene Using [(η 2-C 2H 4) 2Rh(μ-OAc)] 2 as Catalyst Precursor: Identification of a Bis-Rh I Mono-Cu II Complex As the Catalyst. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01203] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Charles B. Musgrave
- Materials and Process Simulation Center, Department of Chemistry, California Institute of Technology, Pasadena, California 91125, United States
| | - Weihao Zhu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Nathan Coutard
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Jeffrey F. Ellena
- Biomolecular Magnetic Resonance Facility, School of Medicine, University of Virginia, Charlottesville, Virginia 22908, United States
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - William A. Goddard
- Materials and Process Simulation Center, Department of Chemistry, California Institute of Technology, Pasadena, California 91125, United States
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4
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Gunnoe TB, Schinski WL, Jia X, Zhu W. Transition-Metal-Catalyzed Arene Alkylation and Alkenylation: Catalytic Processes for the Generation of Chemical Intermediates. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03494] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - William L. Schinski
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Xiaofan Jia
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Weihao Zhu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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5
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Kong F, Gu S, Liu C, Dickie DA, Zhang S, Gunnoe TB. Effects of Additives on Catalytic Arene C–H Activation: Study of Rh Catalysts Supported by Bis-phosphine Pincer Ligands. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00623] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Fanji Kong
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Shunyan Gu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Chang Liu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Sen Zhang
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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6
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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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7
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Gu S, Nielsen RJ, Taylor KH, Fortman GC, Chen J, Dickie DA, Goddard WA, Gunnoe TB. Use of Ligand Steric Properties to Control the Thermodynamics and Kinetics of Oxidative Addition and Reductive Elimination with Pincer-Ligated Rh Complexes. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00122] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Shunyan Gu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Robert J. Nielsen
- Materials and Process Simulation Center, Department of Chemistry, California Institute of Technology, Pasadena, California 91125, United States
| | - Kathleen H. Taylor
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - George C. Fortman
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Junqi Chen
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Diane A. Dickie
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - William A. Goddard
- Materials and Process Simulation Center, Department of Chemistry, California Institute of Technology, Pasadena, California 91125, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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Abstract
ConspectusAlkyl and alkenyl arenes are of substantial value in both large-scale and fine chemical processes. Billions of pounds of alkyl and alkenyl arenes are produced annually. Historically, the dominant method for synthesis of alkyl arenes is acid-catalyzed arene alkylation, and alkenyl arenes are often synthesized in a subsequent dehydrogenation step. But these methods have limitations that result from the catalytic mechanism including (1) common polyalkylation, which requires an energy intensive transalkylation process, (2) quantitative selectivity for Markovnikov products for arene alkylation using α-olefins, (3) for substituted arenes, regioselectivity that is dictated by the electronic character of the arene substituents, (4) inability to form alkenyl arenes in a single process, and (5) commonly observed slow reactivity with electron-deficient arenes. Transition-metal-catalyzed aryl-carbon coupling reactions can produce alkyl or alkenyl arenes from aryl halides. However, these reactions often generate halogenated waste and typically require a stoichiometric amount of metal-containing transmetalation reagent. Transition-metal-catalyzed arene alkylation or alkenylation that involves arene C-H activation and olefin insertion into metal-aryl bonds provides a potential alternative method to prepare alkyl or alkenylation arenes. Such reactions can circumvent carbocationic intermediates and, as a result, can overcome some of the limitations mentioned above. In particular, controlling the regioselectivity of the insertion of α-olefins into metal-aryl bonds provides a strategy to selectively synthesize anti-Markovnikov products. But, previously reported catalysts often show limited longevity and low selectivity for anti-Markovnikov products.In this Account, we present recent developments in single-step arene alkenylation using Rh catalyst precursors. The reactions are successful for unactivated hydrocarbons and exhibit unique selectivity. The catalytic production of alkenyl arenes operates via Rh-mediated aromatic C-H activation, which likely occurs by a concerted metalation-deprotonation mechanism, olefin insertion into a Rh-aryl bond, β-hydride elimination from the resulting Rh-hydrocarbon product, and net dissociation of alkenyl arene with formation of a Rh hydride. Reaction of the Rh hydride with Cu(II) oxidant completes the catalytic cycle. Although Rh nanoparticles can be formed under some conditions, mechanistic studies have revealed that soluble Rh species are likely responsible for the catalysis. These Rh catalyst precursors achieve high turnovers with >10,000 catalytic turnovers observed in some cases. Under anaerobic conditions, Cu(II) carboxylates are used as the oxidant. In some cases, aerobic recycling of Cu(II) oxidant has been demonstrated. Hence, the Rh arene alkenylation catalysis bears some similarities to Pd-catalyzed olefin oxidation (i.e., the Wacker-Hoechst process). The Rh-catalyzed arene alkenylation is compatible with some electron-deficient arenes, and they are selective for anti-Markovnikov products when using substituted olefins. Finally, when using monosubstituted arenes, consistent with a metal-mediated C-H activation process, Rh-catalyzed alkenylation of substituted arenes shows selectivity for meta- and para-alkenylation products.
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Affiliation(s)
- Weihao Zhu
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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9
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Atzrodt J, Derdau V, Kerr WJ, Reid M. Methoden der C-H-Funktionalisierung für den Wasserstoffisotopenaustausch. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201708903] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry; Industriepark Höchst, G876 65926 Frankfurt Deutschland
| | - William J. Kerr
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM; University of Strathclyde; 295 Cathedral Street Glasgow Scotland G1 1XL Großbritannien
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10
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Atzrodt J, Derdau V, Kerr WJ, Reid M. C-H Functionalisation for Hydrogen Isotope Exchange. Angew Chem Int Ed Engl 2018; 57:3022-3047. [PMID: 29024330 DOI: 10.1002/anie.201708903] [Citation(s) in RCA: 299] [Impact Index Per Article: 49.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Indexed: 11/06/2022]
Abstract
The various applications of hydrogen isotopes (deuterium, D, and tritium, T) in the physical and life sciences demand a range of methods for their installation in an array of molecular architectures. In this Review, we describe recent advances in synthetic C-H functionalisation for hydrogen isotope exchange.
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Affiliation(s)
- Jens Atzrodt
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - Volker Derdau
- Isotope Chemistry and Metabolite Synthesis, Integrated Drug Discovery, Medicinal Chemistry, Industriepark Höchst, G876, 65926, Frankfurt, Germany
| | - William J Kerr
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
| | - Marc Reid
- Department of Pure and Applied Chemistry, WestCHEM, University of Strathclyde, 295 Cathedral Street, Glasgow, Scotland, G1 1XL, UK
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11
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Suslick BA, Liberman-Martin AL, Wambach TC, Tilley TD. Olefin Hydroarylation Catalyzed by (pyridyl-indolate)Pt(II) Complexes: Catalytic Efficiencies and Mechanistic Aspects. ACS Catal 2017. [DOI: 10.1021/acscatal.7b01560] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [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
| | - Allegra L. Liberman-Martin
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, United States
| | - Truman C. Wambach
- 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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12
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Davies DL, Macgregor SA, McMullin CL. Computational Studies of Carboxylate-Assisted C-H Activation and Functionalization at Group 8-10 Transition Metal Centers. Chem Rev 2017; 117:8649-8709. [PMID: 28530807 DOI: 10.1021/acs.chemrev.6b00839] [Citation(s) in RCA: 398] [Impact Index Per Article: 56.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Computational studies on carboxylate-assisted C-H activation and functionalization at group 8-10 transition metal centers are reviewed. This Review is organized by metal and will cover work published from late 2009 until mid-2016. A brief overview of computational work prior to 2010 is also provided, and this outlines the understanding of carboxylate-assisted C-H activation in terms of the "ambiphilic metal-ligand assistance" (AMLA) and "concerted metalation deprotonation" (CMD) concepts. Computational studies are then surveyed in terms of the nature of the C-H bond being activated (C(sp2)-H or C(sp3)-H), the nature of the process involved (intramolecular with a directing group or intermolecular), and the context (stoichiometric C-H activation or within a variety of catalytic processes). This Review aims to emphasize the connection between computation and experiment and to highlight the contribution of computational chemistry to our understanding of catalytic C-H functionalization based on carboxylate-assisted C-H activation. Some opportunities where the interplay between computation and experiment may contribute further to the areas of catalytic C-H functionalization and applied computational chemistry are identified.
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Affiliation(s)
- David L Davies
- Department of Chemistry, University of Leicester , Leicester LE1 7RH, United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences, Heriot-Watt University , Edinburgh EH14 4AS, United Kingdom
| | - Claire L McMullin
- Institute of Chemical Sciences, Heriot-Watt University , Edinburgh EH14 4AS, United Kingdom
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13
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Vaughan BA, Khani SK, Gary JB, Kammert JD, Webster-Gardiner MS, McKeown BA, Davis RJ, Cundari TR, Gunnoe TB. Mechanistic Studies of Single-Step Styrene Production Using a Rhodium(I) Catalyst. J Am Chem Soc 2017; 139:1485-1498. [DOI: 10.1021/jacs.6b10658] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Benjamin A. Vaughan
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Sarah K. Khani
- Center
for Advanced Scientific Computing and Modeling, Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - J. Brannon Gary
- Center
for Advanced Scientific Computing and Modeling, Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - James D. Kammert
- Department
of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | | | - Bradley A. McKeown
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Robert J. Davis
- Department
of Chemical Engineering, University of Virginia, Charlottesville, Virginia 22904, United States
| | - Thomas R. Cundari
- Center
for Advanced Scientific Computing and Modeling, Department of Chemistry, University of North Texas, Denton, Texas 76203, United States
| | - T. Brent Gunnoe
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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14
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Webster-Gardiner MS, Piszel PE, Fu R, McKeown BA, Nielsen RJ, Goddard WA, Gunnoe TB. Electrophilic RhI catalysts for arene H/D exchange in acidic media: Evidence for an electrophilic aromatic substitution mechanism. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.molcata.2016.07.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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15
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16
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Sperger T, Sanhueza IA, Kalvet I, Schoenebeck F. Computational Studies of Synthetically Relevant Homogeneous Organometallic Catalysis Involving Ni, Pd, Ir, and Rh: An Overview of Commonly Employed DFT Methods and Mechanistic Insights. Chem Rev 2015. [PMID: 26207572 DOI: 10.1021/acs.chemrev.5b00163] [Citation(s) in RCA: 410] [Impact Index Per Article: 45.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Theresa Sperger
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Italo A Sanhueza
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany.,Laboratory of Organic Chemistry, ETH Zürich , Vladimir-Prelog-Weg 3, 8093 Zürich, Switzerland
| | - Indrek Kalvet
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
| | - Franziska Schoenebeck
- Institute of Organic Chemistry, RWTH Aachen University , Landoltweg 1, 52074 Aachen, Germany
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17
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Vaughan BA, Webster-Gardiner MS, Cundari TR, Gunnoe TB. Organic chemistry. A rhodium catalyst for single-step styrene production from benzene and ethylene. Science 2015; 348:421-4. [PMID: 25908817 DOI: 10.1126/science.aaa2260] [Citation(s) in RCA: 75] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Rising global demand for fossil resources has prompted a renewed interest in catalyst technologies that increase the efficiency of conversion of hydrocarbons from petroleum and natural gas to higher-value materials. Styrene is currently produced from benzene and ethylene through the intermediacy of ethylbenzene, which must be dehydrogenated in a separate step. The direct oxidative conversion of benzene and ethylene to styrene could provide a more efficient route, but achieving high selectivity and yield for this reaction has been challenging. Here, we report that the Rh catalyst ((Fl)DAB)Rh(TFA)(η(2)-C2H4) [(Fl)DAB is N,N'-bis(pentafluorophenyl)-2,3-dimethyl-1,4-diaza-1,3-butadiene; TFA is trifluoroacetate] converts benzene, ethylene, and Cu(II) acetate to styrene, Cu(I) acetate, and acetic acid with 100% selectivity and yields ≥95%. Turnover numbers >800 have been demonstrated, with catalyst stability up to 96 hours.
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Affiliation(s)
- Benjamin A Vaughan
- Department of Chemistry, University of Virginia, Charlottesville, VA 22903, USA
| | | | - Thomas R Cundari
- Center for Advanced Scientific Computing and Modeling, Department of Chemistry, University of North Texas, Denton, TX 76203, USA.
| | - T Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, VA 22903, USA.
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18
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Computational Studies on Heteroatom-Assisted C–H Activation and Functionalisation at Group 8 and 9 Metal Centres. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_125] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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19
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Munz D, Webster-Gardiner M, Fu R, Strassner T, Goddard WA, Gunnoe TB. Proton or Metal? The H/D Exchange of Arenes in Acidic Solvents. ACS Catal 2014. [DOI: 10.1021/cs501620f] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Dominik Munz
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | | | - Ross Fu
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - William A. Goddard
- Materials and Process Simulation Center, California Institute of Technology, Pasadena, California 91125, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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20
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Fu R, Nielsen RJ, Goddard WA, Fortman GC, Gunnoe TB. DFT Virtual Screening Identifies Rhodium–Amidinate Complexes As Potential Homogeneous Catalysts for Methane-to-Methanol Oxidation. ACS Catal 2014. [DOI: 10.1021/cs5005322] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Ross Fu
- Materials
and Process Simulation
Center, California Institute of Technology, Pasadena, California 91125, United States
| | - Robert J. Nielsen
- Materials
and Process Simulation
Center, California Institute of Technology, Pasadena, California 91125, United States
| | - William A. Goddard
- Materials
and Process Simulation
Center, California Institute of Technology, Pasadena, California 91125, United States
| | - George C. Fortman
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
| | - T. Brent Gunnoe
- Department
of Chemistry, University of Virginia, Charlottesville, Virginia 22904, United States
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