1
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Le Vaillant F, Mateos Calbet A, González-Pelayo S, Reijerse EJ, Ni S, Busch J, Cornella J. Catalytic synthesis of phenols with nitrous oxide. Nature 2022; 604:677-683. [PMID: 35478236 PMCID: PMC9046086 DOI: 10.1038/s41586-022-04516-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 02/04/2022] [Indexed: 02/01/2023]
Abstract
The development of catalytic chemical processes that enable the revalorization of nitrous oxide (N2O) is an attractive strategy to alleviate the environmental threat posed by its emissions1–6. Traditionally, N2O has been considered an inert molecule, intractable for organic chemists as an oxidant or O-atom transfer reagent, owing to the harsh conditions required for its activation (>150 °C, 50‒200 bar)7–11. Here we report an insertion of N2O into a Ni‒C bond under mild conditions (room temperature, 1.5–2 bar N2O), thus delivering valuable phenols and releasing benign N2. This fundamentally distinct organometallic C‒O bond-forming step differs from the current strategies based on reductive elimination and enables an alternative catalytic approach for the conversion of aryl halides to phenols. The process was rendered catalytic by means of a bipyridine-based ligands for the Ni centre. The method is robust, mild and highly selective, able to accommodate base-sensitive functionalities as well as permitting phenol synthesis from densely functionalized aryl halides. Although this protocol does not provide a solution to the mitigation of N2O emissions, it represents a reactivity blueprint for the mild revalorization of abundant N2O as an O source. A study demonstrates that nitrous oxide can act as the source of O in a catalytic conversion of aryl halides to phenols, releasing N2 as by-product.
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Affiliation(s)
| | - Ana Mateos Calbet
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | | | - Edward J Reijerse
- Max-Planck-Institut für Chemische Energiekonversion, Mülheim an der Ruhr, Germany
| | - Shengyang Ni
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | - Julia Busch
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Mülheim an der Ruhr, Germany.
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2
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Hofmann BJ, Huber S, Reich RM, Drees M, Kühn FE. Ethyltrioxorhenium – Catalytic application and decomposition pathways. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.02.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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3
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Lupacchini M, Mascitti A, Canale V, Tonucci L, Colacino E, Passacantando M, Marrone A, d'Alessandro N. Deoxydehydration of glycerol in presence of rhenium compounds: reactivity and mechanistic aspects. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02478b] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Re compounds in different oxidation states are activated during a delay time into an active Re alkoxide precipitate catalysing the DODH of glycerol.
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Affiliation(s)
- Massimiliano Lupacchini
- Department of Engineering and Geology
- University "G. d'Annunzio" of Chieti-Pescara
- Chieti Scalo
- Italy
| | - Andrea Mascitti
- Department of Engineering and Geology
- University "G. d'Annunzio" of Chieti-Pescara
- Chieti Scalo
- Italy
| | - Valentino Canale
- Department of Pharmacy
- University "G. d'Annunzio" of Chieti-Pescara
- Chieti Scalo
- Italy
| | - Lucia Tonucci
- Department of Philosophical
- Educational and Economic Sciences
- University "G. d'Annunzio" of Chieti-Pescara
- Chieti Scalo
- Italy
| | - Evelina Colacino
- Institut Charles Gerhardt de Montpellier (ICGM)
- Montpellier Cedex 05
- France
| | | | - Alessandro Marrone
- Department of Pharmacy
- University "G. d'Annunzio" of Chieti-Pescara
- Chieti Scalo
- Italy
| | - Nicola d'Alessandro
- Department of Engineering and Geology
- University "G. d'Annunzio" of Chieti-Pescara
- Chieti Scalo
- Italy
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4
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Dyckhoff F, Li S, Reich RM, Hofmann BJ, Herdtweck E, Kühn FE. Synthesis, characterization and application of organorhenium(vii) trioxides in metathesis reactions and epoxidation catalysis. Dalton Trans 2018; 47:9755-9764. [PMID: 29987275 DOI: 10.1039/c8dt02326c] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four novel organorhenium(vii) oxides of the type L-ReO3 are presented: [4-(trifluoromethyl)phenyl]trioxorhenium 1b, [4-(trifluoromethoxy)phenyl]trioxorhenium 2b, [4-(trifluoromethyl)tetrafluorophenyl]trioxorhenium(THF) 3b·THF and (2,2,6,6-tetramethylpiperidin-1-yl)trioxorhenium 5. As intermediate products, the novel diarylzinc compounds bis[4-(trifluoromethoxy)phenyl]zinc 2a and bis[2,6-bis(trifluoromethyl)phenyl]zinc 4a were prepared. The properties and structure of 1b-5 were studied by means of 1H, 13C, 19F and 17O NMR, IR, MS, TGA and elemental analysis. Due to the strong Lewis acidity of the Re(vii) centres crystal structures of complexes 1b and 2b were obtained as THF adducts 1b·THF and 2b·THF. Complexes 1b, 2b, 3b·THF and 5 have been examined as catalysts in olefin epoxidation using cis-cyclooctene as a model substrate. Epoxide yields of around 80% and TOFs >1300 h-1 can be obtained with 1b, 2b and 3b·THF using TBHP as an oxidant in CDCl3 at 55 °C, exceeding the only reported catalytically active aryl trioxorhenium complex xylyltrioxorhenium (XTO). Moreover, 1b shows catalytic activity in the self-metathesis of 1-hexene with good yields using Et2AlCl as a co-catalyst. Additionally, 1b and 5 were found to be efficient catalysts for the ring-opening metathesis polymerization (ROMP) of norbornene. Polynorbornene with high molecular weight can be obtained in good yields at room temperature using RnAlCl3-n as a co-catalyst. 5 is the first example of an amido trioxorhenium(vii) complex active in olefin metathesis.
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Affiliation(s)
- Florian Dyckhoff
- Molecular Catalysis, Catalysis Research Center and Department of Chemistry, Technische Universität München, Lichtenbergstr. 4, 85747 Garching bei München, Germany.
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5
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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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6
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Sberegaeva AV, Watts D, Vedernikov AN. Oxidative Functionalization of Late Transition Metal–Carbon Bonds. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2017. [DOI: 10.1016/bs.adomc.2017.03.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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7
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Morello GR, Cundari TR. Density Functional Study of Oxygen Insertion into Niobium–Phosphorus Bonds: Novel Mechanism for Liberating P3– Synthons. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00679] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Glenn R. Morello
- Centre
for Theoretical and Computational Chemistry (CTCC) and Department
of Chemistry, University of Tromsø, N-9037 Tromsø, Norway
| | - Thomas R. Cundari
- Department
of Chemistry, Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, P.O. Box 305070, Denton, Texas 76203-5070, United States
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8
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Baskaran S, Sivasankar C. Hydroxylamine synthesis by oxygen insertion into ReNH 2bond via Baeyer-Villiger oxidation: a Theoretical study. J PHYS ORG CHEM 2015. [DOI: 10.1002/poc.3472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Sambath Baskaran
- Catalysis and Energy Laboratory, Department of Chemistry; Pondicherry University; R. V. Nagar Puducherry 605014 India
| | - Chinnappan Sivasankar
- Catalysis and Energy Laboratory, Department of Chemistry; Pondicherry University; R. V. Nagar Puducherry 605014 India
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9
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Turlington CR, White PS, Brookhart M, Templeton JL. Half-sandwich Rh(Cp*) and Ir(Cp*) complexes with oxygen atom transfer reagents as ligands. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.02.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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10
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Munz D, Strassner T. Alkane C-H functionalization and oxidation with molecular oxygen. Inorg Chem 2015; 54:5043-52. [PMID: 25822853 DOI: 10.1021/ic502515x] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The application of environmentally benign, cheap, and economically viable oxidation procedures is a key challenge of homogeneous, oxidative alkane functionalization. The typically harsh reaction conditions and the propensity of dioxygen for radical reactivity call for extraordinary robust catalysts. Mainly three strategies have been applied. These are (1) the combination of a catalyst responsible for C-H activation with a cocatalyst responsible for dioxygen activation, (2) transition-metal catalysts, which react with both hydrocarbons and molecular oxygen, and (3) the introduction of very robust main-group element catalysts for C-H functionalization chemistry. Herein, these three approaches will be assessed and exemplified by the reactivity of chelated palladium (N-heterocyclic carbene) catalysts in combination with a vanadium cocatalyst, the methane functionalization by cobalt catalysts, and the reaction of group XVII compounds with alkanes.
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Affiliation(s)
- Dominik Munz
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
| | - Thomas Strassner
- Physikalische Organische Chemie, Technische Universität Dresden, 01069 Dresden, Germany
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11
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Coggins MK, Méndez MA, Concepcion JJ, Periana RA, Meyer TJ. Selective Electrocatalytic Oxidation of a Re–Methyl Complex to Methanol by a Surface-Bound RuII Polypyridyl Catalyst. J Am Chem Soc 2014; 136:15845-8. [DOI: 10.1021/ja507979c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Michael K. Coggins
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Manuel A. Méndez
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Javier J. Concepcion
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
| | - Roy A. Periana
- The
Scripps Energy and Materials Center, Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Thomas J. Meyer
- Department
of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States
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12
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Mei J, Pardue DB, Kalman SE, Gunnoe TB, Cundari TR, Sabat M. Oxygen Atom Insertion into Iron(II) Phenyl and Methyl Bonds: A Key Step for Catalytic Hydrocarbon Functionalization. Organometallics 2014. [DOI: 10.1021/om500914h] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
| | - Daniel B. Pardue
- Department
of Chemistry and Center for Advanced Scientific Computing and Modeling, University of North Texas, Denton, Texas 76203, United States
| | | | | | - Thomas R. Cundari
- Department
of Chemistry and Center for Advanced Scientific Computing and Modeling, University of North Texas, Denton, Texas 76203, United States
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13
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Garrett EC, Figg TM, Cundari TR. Impact of d-Orbital Occupation on Metal–Carbon Bond Functionalization. Inorg Chem 2014; 53:7789-98. [DOI: 10.1021/ic5015048] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- E. Chauncey Garrett
- Center for Catalytic Hydrocarbon Functionalization, Department of
Chemistry, and Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Travis M. Figg
- Center for Catalytic Hydrocarbon Functionalization, Department of
Chemistry, and Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Thomas R. Cundari
- Center for Catalytic Hydrocarbon Functionalization, Department of
Chemistry, and Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
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14
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Pardue DB, Mei J, Cundari TR, Gunnoe TB. Density Functional Theory Study of Oxygen-Atom Insertion into Metal–Methyl Bonds of Iron(II), Ruthenium(II), and Osmium(II) Complexes: Study of Metal-Mediated C–O Bond Formation. Inorg Chem 2014; 53:2968-75. [DOI: 10.1021/ic402759w] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Daniel B. Pardue
- Department
of Chemistry, Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, Denton, Texas 76203, United States
| | - Jiajun Mei
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States
| | - Thomas R. Cundari
- Department
of Chemistry, Center for Advanced Scientific Computing and Modeling
(CASCaM), University of North Texas, Denton, Texas 76203, United States
| | - T. Brent Gunnoe
- Department
of Chemistry, University of Virginia, McCormick Road,
P.O. Box 400319, Charlottesville, Virginia 22904-4319, United States
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15
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Prince BM, Gunnoe TB, Cundari TR. Oxy-functionalization of Group 9 and 10 transition metal methyl ligands: use of pyridine-based hemi-labile ligands. Dalton Trans 2014; 43:7608-14. [DOI: 10.1039/c4dt00371c] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Hemi-labile ligands (HLLs) are intriguing candidates for catalysts since they may facilitate bond activation and bond formation through facile ligand dissociation/association.
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Affiliation(s)
- Bruce M. Prince
- Center for Catalytic Hydrocarbon Functionalization (CCHF)
- Department of Chemistry
- Center for Advanced Scientific Computing and Modeling (CASCaM); University of North Texas
- Denton, USA
| | - T. Brent Gunnoe
- Department of Chemistry
- University of Virginia
- Charlottesville, USA
| | - Thomas R. Cundari
- Center for Catalytic Hydrocarbon Functionalization (CCHF)
- Department of Chemistry
- Center for Advanced Scientific Computing and Modeling (CASCaM); University of North Texas
- Denton, USA
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16
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Cheng MJ, Nielsen RJ, Goddard III WA. A homolytic oxy-functionalization mechanism: intermolecular hydrocarbyl migration from M–R to vanadate oxo. Chem Commun (Camb) 2014; 50:10994-6. [DOI: 10.1039/c4cc03067b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Carbon–oxygen bond formation proceeds via intermolecular phenyl migration from OVCl2Ph to the oxo of OVCl3.
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Affiliation(s)
- Mu-Jeng Cheng
- Materials and Process Simulation Center (139-74)
- California Institute of Technology
- Pasadena, USA
| | - Robert J. Nielsen
- Materials and Process Simulation Center (139-74)
- California Institute of Technology
- Pasadena, USA
| | - William A. Goddard III
- Materials and Process Simulation Center (139-74)
- California Institute of Technology
- Pasadena, USA
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17
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Khenkin AM, Efremenko I, Martin JML, Neumann R. Polyoxometalate-Catalyzed Insertion of Oxygen from O2 into Tin–Alkyl Bonds. J Am Chem Soc 2013; 135:19304-10. [DOI: 10.1021/ja409559h] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Alexander M. Khenkin
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Irena Efremenko
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Jan M. L. Martin
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
| | - Ronny Neumann
- Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100
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18
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Webb JR, Figg TM, Otten BM, Cundari TR, Gunnoe TB, Sabat M. Pt
II
and Rh
III
Hydrocarbyl Complexes Bearing Coordinated Oxygen Atom Delivery Reagents. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300434] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Joanna R. Webb
- Center for Catalytic Hydrocarbon Functionalization, Department of Chemistry, University of Virginia, McCormick Road, P. O. Box 400319, Charlottesville, VA 22904‐4319, USA, http://chem.virginia.edu/faculty‐research/faculty/t‐brent‐gunnoe/
| | - Travis M. Figg
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203‐5017, USA, http://chemistry.unt.edu/~cundari/group.html
| | - Brooke M. Otten
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203‐5017, USA, http://chemistry.unt.edu/~cundari/group.html
| | - Thomas R. Cundari
- Department of Chemistry and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203‐5017, USA, http://chemistry.unt.edu/~cundari/group.html
| | - T. Brent Gunnoe
- Center for Catalytic Hydrocarbon Functionalization, Department of Chemistry, University of Virginia, McCormick Road, P. O. Box 400319, Charlottesville, VA 22904‐4319, USA, http://chem.virginia.edu/faculty‐research/faculty/t‐brent‐gunnoe/
| | - Michal Sabat
- Nanoscale Materials Characterization Facility, Department of Materials Science and Engineering University of Virginia, Charlottesville, VA 22904, USA
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19
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Figg TM, Cundari TR. Computational Hammett analysis of redox based oxy-insertion by Pt(II) complexes. Dalton Trans 2013; 42:4114-21. [PMID: 23154749 DOI: 10.1039/c2dt31983g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
A computational Hammett analysis of oxy-insertion into platinum-aryl bonds is performed. Modeled transformations involve the two-step conversion of [((X)bpy)Pt(R)(OY)](+) (R = p- or m-X-C(6)H(4); Y = 4- or 3-X-pyridine; (X)bpy = 4,4'- or 5,5'-X-bpy; X = NO(2), H, OMe, NMe(2)) proceeding through a Pt-oxo intermediate to form aryloxide [((X)bpy)Pt(OR)(Y)](+), which contrasts a one-step non-redox (Baeyer-Villiger) oxy-insertion. A structural connection is proposed between redox and non-redox transition states, linked to, among other parameters, oxidant identity. The electronic impact of the catalytic components is compared to previous Hammett studies on OMBV transformations. The Hammett sensitivity for aryl migration is diminished for the migrating group (R) and leaving group (Y), components as compared to OMBV transitions, while the bipyridine supporting ligand (L(n)) has an increased impact. The Hammett impact of R, Y and L(n) upon the aryl migration transition state is small in a global sense, ca. 5 kcal mol(-1); therefore, we conclude that the metal and oxidant are the most important factors in controlling oxy-insertion kinetics for these late metal systems. These results also point to a possible mechanistic advantage for redox over non-redox functionalization of hydrocarbons to alcohols.
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Affiliation(s)
- Travis M Figg
- Center for Catalytic Hydrocarbon Functionalization, University of North Texas, 1155 Union Circle, #305070, Denton, TX 76203-5017, USA
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20
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Webb JR, Burgess SA, Cundari TR, Gunnoe TB. Activation of carbon–hydrogen bonds and dihydrogen by 1,2-CH-addition across metal–heteroatom bonds. Dalton Trans 2013; 42:16646-65. [DOI: 10.1039/c3dt52164h] [Citation(s) in RCA: 73] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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21
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Huber S, Cokoja M, Drees M, Mínk J, Kühn FE. Xylyltrioxorhenium – the first arylrhenium(vii) oxide applicable as an olefin epoxidation catalyst. Catal Sci Technol 2013. [DOI: 10.1039/c2cy20371e] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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22
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Mei J, Carsch KM, Freitag CR, Gunnoe TB, Cundari TR. Variable Pathways for Oxygen Atom Insertion into Metal–Carbon Bonds: The Case of Cp*W(O)2(CH2SiMe3). J Am Chem Soc 2012; 135:424-35. [DOI: 10.1021/ja309755g] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Jiajun Mei
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319,
United States
| | - Kurtis M. Carsch
- Department
of Chemistry and
Center for Advanced Scientific Computing and Modeling, University of North Texas, Denton, Texas 76203-5017,
United States
| | - Cody R. Freitag
- Department
of Chemistry and
Center for Advanced Scientific Computing and Modeling, University of North Texas, Denton, Texas 76203-5017,
United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, Charlottesville, Virginia 22904-4319,
United States
| | - Thomas R. Cundari
- Department
of Chemistry and
Center for Advanced Scientific Computing and Modeling, University of North Texas, Denton, Texas 76203-5017,
United States
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23
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24
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Pouy MJ, Milczek EM, Figg TM, Otten BM, Prince BM, Gunnoe TB, Cundari TR, Groves JT. Flavin-Catalyzed Insertion of Oxygen into Rhenium–Methyl Bonds. J Am Chem Soc 2012; 134:12920-3. [DOI: 10.1021/ja3054139] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Mark J. Pouy
- Department of Chemistry, University of Virginia, 409 McCormick Road, Charlottesville,
Virginia 22904, United States
| | - Erika M. Milczek
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544,
United States
| | - Travis M. Figg
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - Brooke M. Otten
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - Bruce M. Prince
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, 409 McCormick Road, Charlottesville,
Virginia 22904, United States
| | - Thomas R. Cundari
- Center for
Advanced Scientific
Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017,
United States
| | - John T. Groves
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544,
United States
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Hashiguchi BG, Bischof SM, Konnick MM, Periana RA. Designing catalysts for functionalization of unactivated C-H bonds based on the CH activation reaction. Acc Chem Res 2012; 45:885-98. [PMID: 22482496 DOI: 10.1021/ar200250r] [Citation(s) in RCA: 250] [Impact Index Per Article: 20.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In an effort to augment or displace petroleum as a source of liquid fuels and chemicals, researchers are seeking lower cost technologies that convert natural gas (largely methane) to products such as methanol. Current methane to methanol technologies based on highly optimized, indirect, high-temperature chemistry (>800 °C) are prohibitively expensive. A new generation of catalysts is needed to rapidly convert methane and O(2) (ideally as air) directly to methanol (or other liquid hydrocarbons) at lower temperatures (~250 °C) and with high selectivity. Our approach is based on the reaction between CH bonds of hydrocarbons (RH) and transition metal complexes, L(n)M-X, to generate activated L(n)M-R intermediates while avoiding the formation of free radicals or carbocations. We have focused on the incorporation of this reaction into catalytic cycles by integrating the activation of the CH bond with the functionalization of L(n)M-R to generate the desired product and regenerate the L(n)M-X complex. To avoid free-radical reactions possible with the direct use of O(2), our approach is based on the use of air-recyclable oxidants. In addition, the solvent serves several roles including protection of the product, generation of highly active catalysts, and in some cases, as the air-regenerable oxidant. We postulate that there could be three distinct classes of catalyst/oxidant/solvent systems. The established electrophilic class combines electron-poor catalysts in acidic solvents that conceptually react by net removal of electrons from the bonding orbitals of the CH bond. The solvent protects the CH(3)OH by conversion to more electron-poor [CH(3)OH(2)](+) or the ester and also increases the electrophilicity of the catalyst by ligand protonation. The nucleophilic class matches electron-rich catalysts with basic solvents and conceptually reacts by net donation of electrons to the antibonding orbitals of the CH bond. In this case, the solvent could protect the CH(3)OH by deprotonation to the more electron-rich [CH(3)O](-) and increases the nucleophilicity of the catalysts by ligand deprotonation. The third grouping involves ambiphilic catalysts that can conceptually react with both the HOMO and LUMO of the CH bond and would typically involve neutral reaction solvents. We call this continuum base- or acid-modulated (BAM) catalysis. In this Account, we describe our efforts to design catalysts following these general principles. We have had the most success with designing electrophilic systems, but unfortunately, the essential role of the acidic solvent also led to catalyst inhibition by CH(3)OH above ~1 M. The ambiphilic catalysts reduced this product inhibition but were too slow and inefficient. To date, we have designed new base-assisted CH activation and L(n)M-R fuctionalization reactions and are working to integrate these into a complete, working catalytic cycle. Although we have yet to design a system that could supplant commercial processes, continued exploration of the BAM catalysis continuum may lead to new systems that will succeed in addressing this valuable goal.
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Affiliation(s)
- Brian G. Hashiguchi
- The Scripps Energy & Materials Center, Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Steven M. Bischof
- The Scripps Energy & Materials Center, Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Michael M. Konnick
- The Scripps Energy & Materials Center, Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
| | - Roy A. Periana
- The Scripps Energy & Materials Center, Department of Chemistry, The Scripps Research Institute, Jupiter, Florida 33458, United States
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Smeltz JL, Webster CE, Ison EA. Computational Investigation of the Mechanism for the Activation of CO by Oxorhenium Complexes. Organometallics 2012. [DOI: 10.1021/om3003366] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Jessica L. Smeltz
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North
Carolina 27695-8204, United States
| | - Charles Edwin Webster
- Department of Chemistry, 213 Smith Chemistry Building, The University of Memphis, Memphis, Tennessee 38138,
United States
| | - Elon A. Ison
- Department of Chemistry, North Carolina State University, 2620 Yarbrough Drive, Raleigh, North
Carolina 27695-8204, United States
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Figg TM, Webb JR, Cundari TR, Gunnoe TB. Carbon–Oxygen Bond Formation via Organometallic Baeyer–Villiger Transformations: A Computational Study on the Impact of Metal Identity. J Am Chem Soc 2012; 134:2332-9. [DOI: 10.1021/ja2102778] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Travis M. Figg
- Department of Chemistry and
Center for Advanced Scientific Computing and Modeling, University of North Texas, 1155 Union Circle, #305070,
Denton, Texas 76203-5017, United States
| | - Joanna R. Webb
- Department of Chemistry, University of Virginia, McCormick Road, P.O. Box 400319,
Charlottesville, Virginia 22904-4319, United States
| | - Thomas R. Cundari
- Department of Chemistry and
Center for Advanced Scientific Computing and Modeling, University of North Texas, 1155 Union Circle, #305070,
Denton, Texas 76203-5017, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, McCormick Road, P.O. Box 400319,
Charlottesville, Virginia 22904-4319, United States
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Cheng MJ, Bischof SM, Nielsen RJ, Goddard III WA, Gunnoe TB, Periana RA. The para-substituent effect and pH-dependence of the organometallic Baeyer–Villiger oxidation of rhenium–carbon bonds. Dalton Trans 2012; 41:3758-63. [DOI: 10.1039/c2dt11984f] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Huber S, Cokoja M, Drees M, Herrmann WA, Kühn FE. Synthesis and Characterization of Dioxidodiphenylrhenium(VII) Propionate. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100919] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Stefan Huber
- Chair of Inorganic Chemistry, Catalysis Research Center, Technische Universität München, Ernst‐Otto‐Fischer‐Str. 1, 85747 Garching bei München, Germany
| | - Mirza Cokoja
- Chair of Inorganic Chemistry, Catalysis Research Center, Technische Universität München, Ernst‐Otto‐Fischer‐Str. 1, 85747 Garching bei München, Germany
| | - Markus Drees
- Chair of Inorganic Chemistry, Catalysis Research Center, Technische Universität München, Ernst‐Otto‐Fischer‐Str. 1, 85747 Garching bei München, Germany
| | - Wolfgang A. Herrmann
- Chair of Inorganic Chemistry, Catalysis Research Center, Technische Universität München, Ernst‐Otto‐Fischer‐Str. 1, 85747 Garching bei München, Germany
| | - Fritz E. Kühn
- Chair of Inorganic Chemistry, Catalysis Research Center, Technische Universität München, Ernst‐Otto‐Fischer‐Str. 1, 85747 Garching bei München, Germany
- Molecular Catalysis, Catalysis Research Center, Technische Universität München, Ernst‐Otto‐Fischer‐Str. 1, 85747 Garching bei München,Germany, Fax: +49‐89‐289‐13473
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Figg TM, Cundari TR, Gunnoe TB. Non-redox Oxy-Insertion via Organometallic Baeyer–Villiger Transformations: A Computational Hammett Study of Platinum(II) Complexes. Organometallics 2011. [DOI: 10.1021/om200258d] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Travis M. Figg
- Center for Catalytic Hydrocarbon Functionalization, Department of Chemistry, and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - Thomas R. Cundari
- Center for Catalytic Hydrocarbon Functionalization, Department of Chemistry, and Center for Advanced Scientific Computing and Modeling (CASCaM), University of North Texas, 1155 Union Circle, #305070, Denton, Texas 76203-5017, United States
| | - T. Brent Gunnoe
- Department of Chemistry, University of Virginia, McCormick Road, P.O. Box 400319; Charlottesville, Virginia 22904-4319, United States
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