1
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Kakiuchi Y, Docherty SR, Berkson ZJ, Yakimov AV, Wörle M, Copéret C, Aghazada S. Origin of Reactivity Trends of an Elusive Metathesis Intermediate from NMR Chemical Shift Analysis of Surrogate Analogues. J Am Chem Soc 2024; 146:20168-20182. [PMID: 38980045 DOI: 10.1021/jacs.4c05193] [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
Olefin metathesis has become an efficient tool in synthetic organic chemistry to build carbon-carbon bonds, thanks to the development of Grubbs- and Schrock-type catalysts. Olefin coordination, a key and often rate-determining elementary step for d0 Schrock-type catalysts, has been rarely explored due to the lack of accessible relevant molecular analogues. Herein, we present a fully characterized surrogate of this key olefin-coordination intermediate, namely, a cationic d0 tungsten oxo-methylidene complex bearing two N-heterocyclic carbene ligands─[WO(CH2)Cl(IMes)2](OTf) (1) (IMes = 1,3-dimesitylimidazole-2-ylidene, OTf-triflate counteranion), resulting in a trigonal bipyramidal (TBP) geometry, along with its neutral octahedral analogue [WO(CH2)Cl2(IMes)2] (2)─and an isostructural oxo-methylidyne derivative [WO(CH)Cl(IMes)2] (3). The analysis of their solid-state 13C and 183W MAS NMR signatures, along with computed 17O NMR parameters, helps to correlate their electronic structures with NMR patterns and evidences the importance of the competition among the three equatorial ligands in the TBP complexes. Anchored on experimentally obtained NMR parameters for 1, computational analysis of a series of olefin coordination intermediates highlights the interplay between σ- and π-donating ligands in modulating their stability and further paralleling their reactivity. NMR spectroscopy descriptors reveal the origin for the advantage of the dissymmetry in σ-donating abilities of ancillary ligands in Schrock-type catalysts: weak σ-donors avoid the orbital-competition with the oxo ligand upon formation of a TBP olefin-coordination intermediate, while stronger σ-donors compromise M≡O triple bonding and thus render olefin coordination step energy demanding.
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Affiliation(s)
- Yuya Kakiuchi
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Scott R Docherty
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Zachariah J Berkson
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Alexander V Yakimov
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Michael Wörle
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
| | - Sadig Aghazada
- Department of Chemistry and Applied Biosciences, ETH Zürich, Zürich CH-8093, Switzerland
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2
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Yan W, You Z, Meng K, Du F, Zhang S, Jin X. Cross-metathesis of biomass to olefins: Molecular catalysis bridging the gap between fossil and bio-energy. Chin J Chem Eng 2022. [DOI: 10.1016/j.cjche.2021.10.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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3
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Musso JV, De Jesus Silva J, Benedikter MJ, Groos J, Frey W, Copéret C, Buchmeiser MR. Cationic molybdenum oxo alkylidenes stabilized by N-heterocyclic carbenes: from molecular systems to efficient supported metathesis catalysts. Chem Sci 2022; 13:8649-8656. [PMID: 35974748 PMCID: PMC9337747 DOI: 10.1039/d2sc03321f] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2022] [Accepted: 07/04/2022] [Indexed: 01/14/2023] Open
Abstract
Cationic d0 group 6 olefin metathesis catalysts have been recently shown to display in most instances superior activity in comparison to their neutral congeners. Furthermore, their catalytic performance is greatly improved upon immobilization on silica. In this context, we have developed the new family of molecular cationic molybdenum oxo alkylidene complexes stabilized by N-heterocyclic carbenes of the general formula [Mo(O)(CHCMe3)(IMes)(OR)[X-]] (IMes = 1,3-dimesitylimidazol-2-ylidene; R = 1,3-dimesityl-C6H3, C6F5; X- = B(3,5-(CF3)2C6H3)4 -, B(ArF)4, tetrakis(perfluoro-t-butoxy)aluminate (PFTA)). Immobilization of [Mo(O)(CHCMe3)(IMes)(O-1,3-dimesityl-C6H3)+B(ArF)4 -] on silica via surface organometallic chemistry yields an active alkene metathesis catalyst that shows the highest productivity towards terminal olefins amongst all existing molybdenum oxo alkylidene catalysts.
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Affiliation(s)
- Janis V Musso
- Institute of Polymer Chemistry, University of Stuttgart Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Jordan De Jesus Silva
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1-5 CH-8093 Zürich Switzerland
| | - Mathis J Benedikter
- Institute of Polymer Chemistry, University of Stuttgart Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Jonas Groos
- Institute of Polymer Chemistry, University of Stuttgart Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry, Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich Vladimir-Prelog-Weg 1-5 CH-8093 Zürich Switzerland
| | - Michael R Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart Pfaffenwaldring 55 D-70569 Stuttgart Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf Körschtalstr. 26, 73770 Denkendorf Germany
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4
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Synthesis and catalytic olefin metathesis activity of amberlyst-15 supported cyclic and bicyclic alkyl amino carbene ruthenium complexes. REACTION KINETICS MECHANISMS AND CATALYSIS 2022. [DOI: 10.1007/s11144-022-02261-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractAmberlyst-15 supported cyclic alkyl amino carbene and bicyclic alkyl amino carbene ruthenium olefin metathesis catalysts for sustainable catalytic applications have been synthesized by the well-known wet impregnation method utilizing ionic complex/support interaction. Surface coverages are as high as 4 and 7 wt% were achieved in the case of the significantly higher pore volume Amberlyst-15, compared to Amberlyst-36. These phase separable catalysts show high activity in cross metathesis, ring closing metathesis and ethenolysis reactions compared to the reported heterogenized olefin metathesis catalysts. Leeching tests revealed no more than 1.5 ppm ruthenium content for the investigated metathesis reactions, which is well below the accepted 10 ppm limit in case of consumer products.
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5
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Elser I, Schowner R, Stöhr L, Herz K, Benedikter MJ, Sen S, Frey W, Wang D, Buchmeiser MR. Isomers of Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. Organometallics 2022. [DOI: 10.1021/acs.organomet.2c00129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Iris Elser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Roman Schowner
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Laura Stöhr
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Katharina Herz
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Mathis J. Benedikter
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Suman Sen
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Dongren Wang
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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6
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Musso JV, Schowner R, Falivene L, Frey W, Cavallo L, Buchmeiser MR. Predicting Catalytic Activity from
13
C
CH
Alkylidene Chemical Shift in Cationic Tungsten Oxo Alkylidene N‐Heterocyclic Carbene Complexes. ChemCatChem 2021. [DOI: 10.1002/cctc.202101510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Janis V. Musso
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Roman Schowner
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Falivene
- Dipartimento di Chimica e Biologia University of Salerno Via Papa Paolo Giovanni II I-84084 Fisciano Italy
| | - Wolfgang Frey
- Institut für Organische Chemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Luigi Cavallo
- KAUST Catalysis Center Physical Sciences and Engineering Division King Abdullah University of Science and Technology 23955-6900 Thuwal Saudi Arabia
| | - Michael R. Buchmeiser
- Institut für Polymerchemie Universität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf Körschtalstr. 26 73770 Denkendorf Germany
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7
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Nater DF, Paul B, Lätsch L, Schrock RR, Copéret C. Increasing Olefin Metathesis Activity of Silica‐Supported Molybdenum Imido Adamantylidene Complexes through E Ligand σ‐Donation. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100151] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Darryl F. Nater
- ETH Zurich Department of Chemistry and Applied Biosciences ETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich
| | - Bhaskar Paul
- University of California Riverside Department of Chemistry Riverside CA 92521 USA
| | - Lukas Lätsch
- ETH Zurich Department of Chemistry and Applied Biosciences ETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich
| | - Richard R. Schrock
- University of California Riverside Department of Chemistry Riverside CA 92521 USA
| | - Christophe Copéret
- ETH Zurich Department of Chemistry and Applied Biosciences ETH Zurich Vladimir Prelog Weg 1–5 CH-8093 Zurich
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8
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Ziegler F, Kraus H, Benedikter MJ, Wang D, Bruckner JR, Nowakowski M, Weißer K, Solodenko H, Schmitz G, Bauer M, Hansen N, Buchmeiser MR. Confinement Effects for Efficient Macrocyclization Reactions with Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03057] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Felix Ziegler
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Hamzeh Kraus
- Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, Stuttgart D-70569, Germany
| | - Mathis J. Benedikter
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Dongren Wang
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Johanna R. Bruckner
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Michal Nowakowski
- Department of Chemistry and Center for Sustainable Systems Design (CSSD), University of Paderborn, Warburger Str. 100, Paderborn D-33098, Germany
| | - Kilian Weißer
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Helena Solodenko
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, Stuttgart 70569, Germany
| | - Guido Schmitz
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, Stuttgart 70569, Germany
| | - Matthias Bauer
- Department of Chemistry and Center for Sustainable Systems Design (CSSD), University of Paderborn, Warburger Str. 100, Paderborn D-33098, Germany
| | - Niels Hansen
- Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, Stuttgart D-70569, Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
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9
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Podewitz M, Sen S, Buchmeiser MR. On the Origin of E-Selectivity in the Ring-Opening Metathesis Polymerization with Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. Organometallics 2021; 40:2478-2488. [PMID: 34393318 PMCID: PMC8356225 DOI: 10.1021/acs.organomet.1c00229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Indexed: 11/28/2022]
Abstract
The understanding and control of stereoselectivity is a central aspect in ring-opening metathesis polymerization (ROMP). Herein, we report detailed quantum chemical studies on the reaction mechanism of E-selective ROMP of norborn-2-ene (NBE) with Mo(N-2,6-Me2-C6H3)(CHCMe3)(IMes)(OTf)2 (1, IMes = 1,3-dimesitylimidazol-2-ylidene) as a first step to stereoselective polymerization. Four different reaction pathways based on an ene syn or ene anti approach of NBE to either the syn- or anti-isomer of the neutral precatalyst have been studied. In contrast to the recently established associative mechanism with a terminal alkene, where a neutral olefin adduct is formed, NBE reacts directly with the catalyst via [2 + 2] cycloaddition to form molybdacyclobutane with a reaction barrier about 30 kJ mol-1 lower in free energy than via the formation of a catalyst-monomer adduct. However, the direct cycloaddition of NBE was only found for one out of four stereoisomers. Our findings strongly suggest that this stereoselective approach is responsible for E-selectivity and point toward a substrate-specific reaction mechanism in olefin metathesis with neutral Mo imido alkylidene N-heterocyclic carbene bistriflate complexes.
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Affiliation(s)
- Maren Podewitz
- Institute
of General, Inorganic and Theoretical Chemistry, and Center of Molecular
Biosciences, University of Innsbruck, Innrain 80/82, AT-6020 Innsbruck, Austria
| | - Suman Sen
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Michael R. Buchmeiser
- Institute
of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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10
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De Jesus Silva J, Pucino M, Zhai F, Mance D, Berkson ZJ, Nater DF, Hoveyda AH, Copéret C, Schrock RR. Boosting the Metathesis Activity of Molybdenum Oxo Alkylidenes by Tuning the Anionic Ligand σ Donation. Inorg Chem 2021; 60:6875-6880. [PMID: 33475353 DOI: 10.1021/acs.inorgchem.0c03173] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The catalytic performances of molecular and silica-supported molybdenum oxo alkylidene species bearing anionic O ligands [ORF9, OTPP, OHMT - where ORF9 = OC(CF3)3, OTPP = 2,3,5,6-tetraphenylphenoxy, OHMT = hexamethylterphenoxy] with different σ-donation abilities and sizes are evaluated in the metathesis of both internal and terminal olefins. Here, we show that the presence of the anionic nonafluoro-tert-butoxy X ligand in Mo(O){═CH-4-(MeO)C6H4}(THF)2{X}2 (1; X = ORF9) significantly increases the catalytic performances in the metathesis of both terminal and internal olefins. Its silica-supported equivalent displays slightly lower activity, albeit with improved stability. In sharp contrast, the molecular complexes with large aryloxy anionic X ligands show little activity, whereas the activity of the corresponding silica-supported systems is greatly improved, illustrating that surface siloxy groups are significantly smaller anionic ligands. Of all of the systems, compound 1 stands out because of its unique high activity for both terminal and internal olefins. Density functional theory modeling indicates that the ORF9 ligand is ideal in this series because of its weak σ-donating ability, avoiding overstabilization of the metallacyclobutane intermediates while keeping low barriers for [2 + 2] cycloaddition and turnstile isomerization.
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Affiliation(s)
- Jordan De Jesus Silva
- Department of Chemistry and Applied Biosciences, ETH Zürich (ETHZ), Vladimir Prelog Weg 2, CH-8093 Zürich, Switzerland
| | - Margherita Pucino
- Department of Chemistry and Applied Biosciences, ETH Zürich (ETHZ), Vladimir Prelog Weg 2, CH-8093 Zürich, Switzerland
| | - Feng Zhai
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Deni Mance
- Department of Chemistry and Applied Biosciences, ETH Zürich (ETHZ), Vladimir Prelog Weg 2, CH-8093 Zürich, Switzerland
| | - Zachariah J Berkson
- Department of Chemistry and Applied Biosciences, ETH Zürich (ETHZ), Vladimir Prelog Weg 2, CH-8093 Zürich, Switzerland
| | - Darryl F Nater
- Department of Chemistry and Applied Biosciences, ETH Zürich (ETHZ), Vladimir Prelog Weg 2, CH-8093 Zürich, Switzerland
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, Massachusetts 02467, United States
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich (ETHZ), Vladimir Prelog Weg 2, CH-8093 Zürich, Switzerland
| | - Richard R Schrock
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
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11
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Czerny F, Searles K, Šot P, Teichert JF, Menezes PW, Copéret C, Driess M. Well-Defined, Silica-Supported Homobimetallic Nickel Hydride Hydrogenation Catalyst. Inorg Chem 2021; 60:5483-5487. [PMID: 33797227 DOI: 10.1021/acs.inorgchem.0c03188] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
There is an increasing interest to replace precious metal-based catalysts by earth-abundant nonprecious metals due to higher costs, toxicity, and declining availability of the former. Here, the synthesis of a well-defined supported nickel hydrogenation catalyst prepared by surface organometallic chemistry is reported. For this purpose, [LNi(μ-H)]2 (L = HC(CMeNC6H3(iPr)2)2) was grafted on partially dehydroxylated silica to give a homobimetallic H- and O(silica)-bridged Ni2 complex. The structure of the latter was confirmed by infrared spectroscopy, X-ray absorption near-edge structure, and extended X-ray absorption fine structure analyses as well as hydride titration studies. The immobilized catalyst was capable of hydrogenating alkenes and alkynes at low temperatures without prior activation. As an example, ethene can be hydrogenated with an initial turnover frequency of 25.5 min-1 at room temperature.
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Affiliation(s)
- Frank Czerny
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, 10623 Berlin, Germany
| | - Keith Searles
- Department of Chemistry, University of Florida, P.O. Box 117200, Gainesville, Florida 32611, United States
| | - Petr Šot
- Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Johannes F Teichert
- Department of Chemistry, Sustainable Synthetic Methods, Technische Universität Berlin, 10623 Berlin, Germany
| | - Prashanth W Menezes
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, 10623 Berlin, Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH Zürich, 8093 Zürich, Switzerland
| | - Matthias Driess
- Department of Chemistry: Metalorganics and Inorganic Materials, Technische Universität Berlin, 10623 Berlin, Germany
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12
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Musso JV, Benedikter M, Gebel P, Gramm V, Wang D, Schowner R, Buchmeiser MR. Cationic tungsten imido alkylidene N-heterocyclic carbene complexes for stereospecific ring-opening metathesis polymerization of norbornene derivatives. Polym Chem 2021. [DOI: 10.1039/d1py01158h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Cationic W alkylidene N-heterocyclic carbene complexes allow for the stereospecific ring-opening metathesis polymerization of norbornenes with high trans-iso- and high cis-syndiospecificity, respectively.
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Affiliation(s)
- Janis V. Musso
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Mathis Benedikter
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Paul Gebel
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Vincent Gramm
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Dongren Wang
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Roman Schowner
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
- German Institutes of Textile and Fiber Research, Körschtalstr. 26, D-73770 Denkendorf, Germany
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13
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Benedikter M, Musso J, Kesharwani MK, Sterz KL, Elser I, Ziegler F, Fischer F, Plietker B, Frey W, Kästner J, Winkler M, van Slageren J, Nowakowski M, Bauer M, Buchmeiser MR. Charge Distribution in Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes: A Combined X-ray, XAS, XES, DFT, Mössbauer, and Catalysis Approach. ACS Catal 2020. [DOI: 10.1021/acscatal.0c03978] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Mathis Benedikter
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Janis Musso
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Manoj K. Kesharwani
- Institute of Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - K. Leonard Sterz
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Iris Elser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Felix Ziegler
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Felix Fischer
- Faculty of Chemistry and Food Chemistry, Technical University of Dresden, Bergstrasse 66, D-01069 Dresden, Germany
| | - Bernd Plietker
- Faculty of Chemistry and Food Chemistry, Technical University of Dresden, Bergstrasse 66, D-01069 Dresden, Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Johannes Kästner
- Institute of Theoretical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Mario Winkler
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Joris van Slageren
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Michal Nowakowski
- Department of Chemistry, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
| | - Matthias Bauer
- Department of Chemistry, University of Paderborn, Warburger Str. 100, D-33098 Paderborn, Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
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14
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Romain C, Bellemin-Laponnaz S, Dagorne S. Recent progress on NHC-stabilized early transition metal (group 3–7) complexes: Synthesis and applications. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213411] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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15
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Kesharwani MK, Elser I, Musso JV, Buchmeiser MR, Kästner J. Reaction Mechanism of Ring-Closing Metathesis with a Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Catalyst. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Benedikter MJ, Ziegler F, Groos J, Hauser PM, Schowner R, Buchmeiser MR. Group 6 metal alkylidene and alkylidyne N-heterocyclic carbene complexes for olefin and alkyne metathesis. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2020.213315] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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17
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Hauser PM, Ende M, Groos J, Frey W, Wang D, Buchmeiser MR. Cationic Tungsten Alkylidyne
N
‐Heterocyclic Carbene Complexes: Synthesis and Reactivity in Alkyne Metathesis. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000503] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Philipp M. Hauser
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Melita Ende
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Jonas Groos
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Dongren Wang
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry University of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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18
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Schowner R, Elser I, Benedikter M, Momin M, Frey W, Schneck T, Stöhr L, Buchmeiser MR. Origin and Use of Hydroxyl Group Tolerance in Cationic Molybdenum Imido Alkylidene N‐Heterocyclic Carbene Catalysts. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201913322] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Roman Schowner
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Iris Elser
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Mathis Benedikter
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Mohasin Momin
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institut für Organische ChemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Tanja Schneck
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Stöhr
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institut für PolymerchemieUniversität Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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19
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Schowner R, Elser I, Benedikter M, Momin M, Frey W, Schneck T, Stöhr L, Buchmeiser MR. Origin and Use of Hydroxyl Group Tolerance in Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Catalysts. Angew Chem Int Ed Engl 2019; 59:951-958. [PMID: 31774220 PMCID: PMC6972570 DOI: 10.1002/anie.201913322] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Revised: 11/26/2019] [Indexed: 11/21/2022]
Abstract
The origin of hydroxyl group tolerance in neutral and especially cationic molybdenum imido alkylidene N‐heterocyclic carbene (NHC) complexes has been investigated. A wide range of catalysts was prepared and tested. Most cationic complexes can be handled in air without difficulty and display an unprecedented stability towards water and alcohols. NHC complexes were successfully used with substrates containing the hydroxyl functionality in acyclic diene metathesis polymerization, homo‐, cross and ring‐opening cross metathesis reactions. The catalysts remain active even in 2‐PrOH and are applicable in ring‐opening metathesis polymerization and alkene homometathesis using alcohols as solvent. The use of weakly basic bidentate, hemilabile anionic ligands such as triflate or pentafluorobenzoate and weakly basic aromatic imido ligands in combination with a sterically demanding 1,3‐dimesitylimidazol‐2‐ylidene NHC ligand was found essential for reactive and yet robust catalysts.
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Affiliation(s)
- Roman Schowner
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Iris Elser
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Mathis Benedikter
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Mohasin Momin
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Wolfgang Frey
- Institut für Organische Chemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Tanja Schneck
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Laura Stöhr
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
| | - Michael R Buchmeiser
- Institut für Polymerchemie, Universität Stuttgart, Pfaffenwaldring 55, 70569, Stuttgart, Germany
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20
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Momin M, Nagy GM, Buchmeiser MR. Stereoselective Olefin Ring‐Opening Cross Metathesis Catalyzed by Molybdenum Imido Alkylidene
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‐Heterocyclic Carbene Complexes. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900979] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Mohasin Momin
- Institute of Polymer ChemistryUniversity of Stuttgart 70569 Stuttgart Germany
| | - Gergely M. Nagy
- Institute of Polymer ChemistryUniversity of Stuttgart 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer ChemistryUniversity of Stuttgart 70569 Stuttgart Germany
- Institute of Textile Chemistry and Chemical Fibers (ITCF) Denkendorf 73770 Denkendorf Germany
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21
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Baltrun M, Watt FA, Schoch R, Hohloch S. Dioxo-, Oxo-imido-, and Bis-imido-Molybdenum(VI) Complexes with a Bis-phenolate-NHC Ligand. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00472] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Marc Baltrun
- Paderborn University, Faculty of Science, Department of Chemistry, Warburger Straße 100, 33098 Paderborn, Germany
| | - Fabian A. Watt
- Paderborn University, Faculty of Science, Department of Chemistry, Warburger Straße 100, 33098 Paderborn, Germany
| | - Roland Schoch
- Paderborn University, Faculty of Science, Department of Chemistry, Warburger Straße 100, 33098 Paderborn, Germany
| | - Stephan Hohloch
- Paderborn University, Faculty of Science, Department of Chemistry, Warburger Straße 100, 33098 Paderborn, Germany
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22
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Probst P, Elser I, Schowner R, Benedikter MJ, Buchmeiser MR. Regio‐ and Stereospecific Cyclopolymerization of α,ω‐Diynes by Cationic Molybdenum Imido Alkylidene
N
‐Heterocyclic Carbene Complexes. Macromol Rapid Commun 2019; 41:e1900398. [DOI: 10.1002/marc.201900398] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/04/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Patrick Probst
- Chair of Macromolecular Compounds and Fiber ChemistryInstitute of Polymer ChemistryUniversity of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Iris Elser
- Chair of Macromolecular Compounds and Fiber ChemistryInstitute of Polymer ChemistryUniversity of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Roman Schowner
- Chair of Macromolecular Compounds and Fiber ChemistryInstitute of Polymer ChemistryUniversity of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Mathis J. Benedikter
- Chair of Macromolecular Compounds and Fiber ChemistryInstitute of Polymer ChemistryUniversity of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Chair of Macromolecular Compounds and Fiber ChemistryInstitute of Polymer ChemistryUniversity of Stuttgart Pfaffenwaldring 55 70569 Stuttgart Germany
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23
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Pucino M, Zhai F, Gordon CP, Mance D, Hoveyda AH, Schrock RR, Copéret C. Silica-Supported Molybdenum Oxo Alkylidenes: Bridging the Gap between Internal and Terminal Olefin Metathesis. Angew Chem Int Ed Engl 2019; 58:11816-11819. [PMID: 31099940 DOI: 10.1002/anie.201903325] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 05/15/2019] [Indexed: 11/11/2022]
Abstract
Grafting a molybdenum oxo alkylidene on silica (partially dehydroxylated at 700 °C) affords the first example of a well-defined silica-supported Mo oxo alkylidene, which is an analogue of the putative active sites in heterogeneous Mo-based metathesis catalysts. In contrast to its tungsten analogue, which shows poor activity towards terminal olefins because of the formation of a stable off-cycle metallacyclobutane intermediate, the Mo catalyst shows high metathesis activity for both terminal and internal olefins that is consistent with the lower stability of Mo metallacyclobutane intermediates. This Mo oxo metathesis catalyst also outperforms its corresponding neutral silica-supported Mo and W imido analogues.
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Affiliation(s)
- Margherita Pucino
- Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 2, 8093, Zürich, Switzerland
| | - Feng Zhai
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Christopher P Gordon
- Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 2, 8093, Zürich, Switzerland
| | - Deni Mance
- Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 2, 8093, Zürich, Switzerland
| | - Amir H Hoveyda
- Department of Chemistry, Merkert Chemistry Center, Boston College, Chestnut Hill, MA, 02467, USA.,Supramolecular Science and Engineering Institute, University of Strasbourg, CNRS, 67000, Strasbourg, France
| | - Richard R Schrock
- Department of Chemistry, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
| | - Christophe Copéret
- Department of Chemistry and Applied Bioscience, ETH Zürich, Vladimir Prelog Weg 2, 8093, Zürich, Switzerland
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24
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Pucino M, Zhai F, Gordon CP, Mance D, Hoveyda AH, Schrock RR, Copéret C. Silica‐Supported Molybdenum Oxo Alkylidenes: Bridging the Gap between Internal and Terminal Olefin Metathesis. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201903325] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Margherita Pucino
- Department of Chemistry and Applied Bioscience ETH Zürich Vladimir Prelog Weg 2 8093 Zürich Switzerland
| | - Feng Zhai
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Christopher P. Gordon
- Department of Chemistry and Applied Bioscience ETH Zürich Vladimir Prelog Weg 2 8093 Zürich Switzerland
| | - Deni Mance
- Department of Chemistry and Applied Bioscience ETH Zürich Vladimir Prelog Weg 2 8093 Zürich Switzerland
| | - Amir H. Hoveyda
- Department of Chemistry Merkert Chemistry Center Boston College Chestnut Hill MA 02467 USA
- Supramolecular Science and Engineering Institute University of Strasbourg, CNRS 67000 Strasbourg France
| | - Richard R. Schrock
- Department of Chemistry Massachusetts Institute of Technology Cambridge MA 02139 USA
| | - Christophe Copéret
- Department of Chemistry and Applied Bioscience ETH Zürich Vladimir Prelog Weg 2 8093 Zürich Switzerland
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25
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Elser I, Benedikter MJ, Schowner R, Frey W, Wang D, Buchmeiser MR. Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes Containing Pyrrolide Ligands: Access to Catalysts with Sterically Demanding Alkoxides. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00148] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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26
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Benedikter MJ, Schowner R, Elser I, Werner P, Herz K, Stöhr L, Imbrich DA, Nagy GM, Wang D, Buchmeiser MR. Synthesis of trans-Isotactic Poly(norbornene)s through Living Ring-Opening Metathesis Polymerization Initiated by Group VI Imido Alkylidene N-Heterocyclic Carbene Complexes. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00422] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
- Mathis J. Benedikter
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Roman Schowner
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Iris Elser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Philipp Werner
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Katharina Herz
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Laura Stöhr
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Dominik A. Imbrich
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Gergely M. Nagy
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
| | - Dongren Wang
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf, Körschtalstr. 26, D-73770 Denkendorf, Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, D-70569 Stuttgart, Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf, Körschtalstr. 26, D-73770 Denkendorf, Germany
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27
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Herz K, Podewitz M, Stöhr L, Wang D, Frey W, Liedl KR, Sen S, Buchmeiser MR. Mechanism of Olefin Metathesis with Neutral and Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. J Am Chem Soc 2019; 141:8264-8276. [PMID: 31030510 PMCID: PMC6595435 DOI: 10.1021/jacs.9b02092] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
![]()
A series of neutral
molybdenum imido alkylidene N-heterocyclic carbene
(NHC) bistriflate and monotriflate monoalkoxide
complexes as well as cationic molybdenum imido alkylidene triflate
complexes have been subjected to NMR spectroscopic, X-ray crystallographic,
and reaction kinetic measurements in order to gain a comprehensive
understanding about the underlying mechanism in olefin metathesis
of this new type of catalysts. On the basis of experimental evidence
and on DFT calculations (BP86/def2-TZVP/D3/cosmo) for the entire mechanism,
olefinic substrates coordinate trans to the NHC of neutral 16-electron
complexes via an associative mechanism, followed by dissociation of
an anionic ligand (e.g., triflate) and formation of an intermediary
molybdacyclobutane trans to the NHC. Formation of a cationic complex
is crucial in order to become olefin metathesis active. Variations
in the NHC, the imido, the alkoxide, and the noncoordinating anion
revealed their influence on reactivity. The reaction of neutral 16-electron
complexes with 2-methoxystyrene is faster for catalysts bearing one
triflate and one fluorinated alkoxide than for catalysts bearing two
triflate ligands. This is also reflected by the Gibbs free energy
values for the transition states, ΔG‡303, which are significantly lower for catalysts bearing
only one triflate than for the corresponding bistriflate complexes.
Reaction of a solvent-stabilized cationic molybdenum imido alkylidene N-heterocyclic carbene (NHC) monotriflate complex with 2-methoxystyrene
proceeded via an associative mechanism too. Reaction rates of both
solvent-free and solvent-stabilized cationic Mo imido alkylidene NHC
catalysts with 2-methoxystyrene are controlled by the cross-metathesis
step but not by adduct formation.
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Affiliation(s)
| | - Maren Podewitz
- Institute of General, Inorganic and Theoretical Chemistry , University of Innsbruck , Innrain 80-82 , A-6020 Innsbruck , Austria
| | | | | | | | - Klaus R Liedl
- Institute of General, Inorganic and Theoretical Chemistry , University of Innsbruck , Innrain 80-82 , A-6020 Innsbruck , Austria
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28
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Schowner R, Frey W, Buchmeiser MR. Understanding Synthetic Peculiarities of Cationic Molybdenum(VI) Imido Alkylidene N-Heterocyclic Carbene Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900021] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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29
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Pucino M, Inoue M, Gordon CP, Schowner R, Stöhr L, Sen S, Hegedüs C, Robé E, Tóth F, Buchmeiser MR, Copéret C. Promoting Terminal Olefin Metathesis with a Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Catalyst. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808233] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Margherita Pucino
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Mariko Inoue
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
- Current address: Department of Chemistry; Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama-cho, Toyonaka Osaka 560-8531 Japan
| | - Christopher P. Gordon
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Stöhr
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Suman Sen
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
- Current address: Institute of Technical and Macromolecular Chemistry; Aachen University; Worringerweg 1-2 52074 Aachen Germany
| | - Csaba Hegedüs
- XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary
| | - Emmanuel Robé
- XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary
| | - Flórián Tóth
- XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
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30
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Pucino M, Inoue M, Gordon CP, Schowner R, Stöhr L, Sen S, Hegedüs C, Robé E, Tóth F, Buchmeiser MR, Copéret C. Promoting Terminal Olefin Metathesis with a Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Catalyst. Angew Chem Int Ed Engl 2018; 57:14566-14569. [DOI: 10.1002/anie.201808233] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Margherita Pucino
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Mariko Inoue
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
- Current address: Department of Chemistry; Graduate School of Engineering Science; Osaka University; 1-3 Machikaneyama-cho, Toyonaka Osaka 560-8531 Japan
| | - Christopher P. Gordon
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Stöhr
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Suman Sen
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
- Current address: Institute of Technical and Macromolecular Chemistry; Aachen University; Worringerweg 1-2 52074 Aachen Germany
| | - Csaba Hegedüs
- XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary
| | - Emmanuel Robé
- XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary
| | - Flórián Tóth
- XiMo Hungary Ltd.; Záhony Str. 7 1031 Budapest Hungary
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Bioscience; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zürich Switzerland
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31
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Pasini D, Takeuchi D. Cyclopolymerizations: Synthetic Tools for the Precision Synthesis of Macromolecular Architectures. Chem Rev 2018; 118:8983-9057. [PMID: 30146875 DOI: 10.1021/acs.chemrev.8b00286] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Monomers possessing two functionalities suitable for polymerization are often designed and utilized in syntheses directed to the formation of cross-linked macromolecules. In this review, we give an account of recent developments related to the use of such monomers in cyclopolymerization processes, in order to form linear, soluble macromolecules. These processes can be activated by means of radical, ionic, or transition-metal mediated chain-growth polymerization mechanisms, to achieve cyclic moieties of variable ring size which are embedded within the polymer backbone, driving and tuning peculiar physical properties of the resulting macromolecules. The two functionalities are covalently linked by a "tether", which can be appropriately designed in order to "imprint" elements of chemical information into the polymer backbone during the synthesis and, in some cases, be removed by postpolymerization reactions. The two functionalities can possess identical or even very different reactivities toward the polymerization mechanism involved; in the latter case, consequences and outcomes related to the sequence-controlled, precision synthesis of macromolecules have been demonstrated. Recent advances in new initiating systems and polymerization catalysts enabled the precision syntheses of polymers with regulated cyclic structures by highly regio- and/or stereoselective cyclopolymerization. Cyclopolymerizations involving double cyclization, ring-opening, or isomerization have been also developed, generating unique repeating structures, which can hardly be obtained by conventional polymerization methods.
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Affiliation(s)
- Dario Pasini
- Department of Chemistry and INSTM Research Unit , University of Pavia , Viale Taramelli , 10-27100 Pavia , Italy
| | - Daisuke Takeuchi
- Department of Frontier Materials Chemistry, Graduate School of Science and Technology , Hirosaki University , 3 Bunkyo-cho , Hirosaki , Aomori , 036-8561 , Japan
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32
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Schowner R, Elser I, Toth F, Robe E, Frey W, Buchmeiser MR. Mono- and Bisionic Mo- and W-Based Schrock Catalysts for Biphasic Olefin Metathesis Reactions in Ionic Liquids. Chemistry 2018; 24:13336-13347. [DOI: 10.1002/chem.201802472] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2018] [Revised: 07/02/2018] [Indexed: 11/12/2022]
Affiliation(s)
- Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Iris Elser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Florian Toth
- XiMo Hungary Kft.; Záhony u. 7 H-1031 Budapest Hungary
| | - Emmanuel Robe
- XiMo Hungary Kft.; Záhony u. 7 H-1031 Budapest Hungary
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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33
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Elser I, Kordes BR, Frey W, Herz K, Schowner R, Stöhr L, Altmann HJ, Buchmeiser MR. Latent and Air-Stable Pre-Catalysts for the Polymerization of Dicyclopentadiene: From Penta- to Hexacoordination in Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. Chemistry 2018; 24:12652-12659. [DOI: 10.1002/chem.201801862] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Revised: 05/31/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Iris Elser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Benjamin R. Kordes
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Katharina Herz
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Stöhr
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Hagen J. Altmann
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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34
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Buchmeiser MR. Molybdenum Imido, Tungsten Imido and Tungsten Oxo Alkylidene N-Heterocyclic Carbene Olefin Metathesis Catalysts. Chemistry 2018; 24:14295-14301. [DOI: 10.1002/chem.201802497] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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35
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Hauser PM, Hunger M, Buchmeiser MR. Silica-Supported Molybdenum Alkylidyne N-Heterocyclic Carbene Catalysts: Relevance of Site Isolation to Catalytic Performance. ChemCatChem 2018. [DOI: 10.1002/cctc.201701654] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Philipp M. Hauser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Michael Hunger
- Institute of Chemical Technology; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 D-70569 Stuttgart Germany
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36
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Koy M, Elser I, Meisner J, Frey W, Wurst K, Kästner J, Buchmeiser MR. High Oxidation State Molybdenum N
-Heterocyclic Carbene Alkylidyne Complexes: Synthesis, Mechanistic Studies, and Reactivity. Chemistry 2017; 23:15484-15490. [DOI: 10.1002/chem.201703313] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Maximilian Koy
- Universität Stuttgart; Institut für Polymerchemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Iris Elser
- Universität Stuttgart; Institut für Polymerchemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Jan Meisner
- Universität Stuttgart; Institut für Theoretische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Universität Stuttgart; Institut für Organische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Klaus Wurst
- Universität Innsbruck; Institut für Allgemeine, Anorganische und Theoretische Chemie; Innrain 80-82 6020 Innsbruck Austria
| | - Johannes Kästner
- Universität Stuttgart; Institut für Theoretische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Universität Stuttgart; Institut für Polymerchemie; Pfaffenwaldring 55 70569 Stuttgart Germany
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37
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Lienert C, Frey W, Buchmeiser MR. Stereoselective Ring-Opening Metathesis Polymerization with Molybdenum Imido Alkylidenes Containing O-Chelating N-Heterocyclic Carbenes: Influence of Syn/Anti Interconversion and Polymerization Rates on Polymer Structure. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b00841] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Affiliation(s)
| | | | - Michael R. Buchmeiser
- German Institutes
of Textile and Fiber Research (DITF), Körschtalstr. 26, D-73770 Denkendorf, Germany
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38
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Imbrich DA, Elser I, Frey W, Buchmeiser MR. First Neutral and Cationic Tungsten Imido Alkylidene N
-Heterocyclic Carbene Complexes. ChemCatChem 2017. [DOI: 10.1002/cctc.201700189] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dominik A. Imbrich
- Insitute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Iris Elser
- Insitute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Insitute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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39
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Elser I, Schowner R, Frey W, Buchmeiser MR. Molybdenum and Tungsten Imido Alkylidene N-Heterocyclic Carbene Catalysts Bearing Cationic Ligands for Use in Biphasic Olefin Metathesis. Chemistry 2017; 23:6398-6405. [DOI: 10.1002/chem.201700213] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Iris Elser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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40
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Beerhues J, Sen S, Schowner R, Mate Nagy G, Wang D, Buchmeiser MR. Tailored molybdenum imido alkylidene N
-heterocyclic carbene complexes as latent catalysts for the polymerization of dicyclopentadiene. ACTA ACUST UNITED AC 2017. [DOI: 10.1002/pola.28578] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Julia Beerhues
- Institute of Polymer Chemistry, University of Stuttgart; Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Suman Sen
- Institute of Polymer Chemistry, University of Stuttgart; Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Roman Schowner
- Institute of Polymer Chemistry, University of Stuttgart; Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Gergely Mate Nagy
- Institute of Polymer Chemistry, University of Stuttgart; Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Dongren Wang
- Institute of Polymer Chemistry, University of Stuttgart; Pfaffenwaldring 55 Stuttgart 70569 Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart; Pfaffenwaldring 55 Stuttgart 70569 Germany
- Institute of Textile Chemistry and Chemical Fibers; Körschtalstr. 26 Denkendorf 73770 Germany
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41
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Prasad S, Achazi K, Böttcher C, Haag R, Sharma SK. Fabrication of nanostructures through self-assembly of non-ionic amphiphiles for biomedical applications. RSC Adv 2017. [DOI: 10.1039/c6ra28654b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Non-cytotoxic and non-ionic amphiphiles having supramolecular aggregation behavior were synthesized from biocompatible starting materials using a “greener” chemo-enzymatic method.
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Affiliation(s)
- Suchita Prasad
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
| | - Katharina Achazi
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Christoph Böttcher
- Forschungszentrum für Elektronenmikroskopie
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Rainer Haag
- Institut für Chemie und Biochemie
- Freie Universität Berlin
- 14195 Berlin
- Germany
| | - Sunil K. Sharma
- Department of Chemistry
- University of Delhi
- Delhi 110 007
- India
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42
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Imbrich DA, Frey W, Buchmeiser MR. N-Heterocyclic carbene-induced transmethylation in tungsten imido alkylidene bistriflates: unexpected formation of an N-heterocyclic olefin complex. Chem Commun (Camb) 2017; 53:12036-12039. [DOI: 10.1039/c7cc07471a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of [W(N-2,6-iPr2C6H3)(CHCMe2Ph)(CF3SO3)2(DME)] (DME = 1,2-dimethoxyethane) with the N-heterocyclic carbene 1,3-bis(2,4,6-trimethylphenyl)imidazolidin-2-ylidene leads to DME activation and to the formation of an N-heterocyclic olefin complex.
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Affiliation(s)
- Dominik A. Imbrich
- Institute of Polymer Chemistry
- University of Stuttgart
- D-70569 Stuttgart
- Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry
- University of Stuttgart
- D-70569 Stuttgart
- Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry
- University of Stuttgart
- D-70569 Stuttgart
- Germany
- German Institutes of Textile and Fiber Research (DITF) Denkendorf
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43
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Petrov PA, Sukhikh TS, Sokolov MN. NHC adducts of tantalum amidohalides: the first example of NHC abnormally coordinated to an early transition metal. Dalton Trans 2017; 46:4902-4906. [DOI: 10.1039/c7dt00748e] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The first abnormally coordinated NHC complex of an early transition metal, [(aIMes)TaCl2(NMe2)3], is prepared.
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Affiliation(s)
- Pavel A. Petrov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
- 630090 Novosibirsk
| | - Taisiya S. Sukhikh
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russian Federation
| | - Maxim N. Sokolov
- Nikolaev Institute of Inorganic Chemistry SB RAS
- 630090 Novosibirsk
- Russian Federation
- Novosibirsk State University
- 630090 Novosibirsk
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44
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Elser I, Frey W, Wurst K, Buchmeiser MR. Molybdenum Imido Alkylidene Complexes Containing N- and C-Chelating N-Heterocyclic Carbenes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00835] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | | | - Klaus Wurst
- Institut für
Allgemeine, Anorganische und Theoretische Chemie, Universität Innsbruck, Innrain 80-82, 6020 Innsbruck, Austria
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45
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2015. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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46
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Buchmeiser MR, Sen S, Lienert C, Widmann L, Schowner R, Herz K, Hauser P, Frey W, Wang D. Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes: Structure-Productivity Correlations and Mechanistic Insights. ChemCatChem 2016. [DOI: 10.1002/cctc.201600624] [Citation(s) in RCA: 51] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
- Institute of Textile Chemistry and Chemical Fibers; Körschtalstr. 26 73770 Denkendorf Germany
| | - Suman Sen
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Christina Lienert
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Laura Widmann
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Katharina Herz
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Philipp Hauser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Frey
- Institute of Organic Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Dongren Wang
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
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47
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Bidange J, Fischmeister C, Bruneau C. Ethenolysis: A Green Catalytic Tool to Cleave Carbon-Carbon Double Bonds. Chemistry 2016; 22:12226-44. [PMID: 27359344 DOI: 10.1002/chem.201601052] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Indexed: 11/08/2022]
Abstract
Remarkable innovations have been made in the field of olefin metathesis due to the design and preparation of new catalysts. Ethenolysis, which is cross-metathesis with ethylene, represents one catalytic transformation that has been used with the purpose of cleaving internal carbon-carbon double bonds. The objectives were either the ring opening of cyclic olefins to produce dienes or the shortening of unsaturated hydrocarbon chains to degrade polymers or generate valuable shorter terminal olefins in a controlled manner. This Review summarizes several aspects of this reaction: the catalysts, their degradation in the presence of ethylene, some parameters driving their productivity, the side reactions, and the applications of ethenolysis in organic synthesis and in potential industrial applications.
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Affiliation(s)
- Johan Bidange
- UMR 6226, CNRS, Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organometallics, Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 avenue du général Leclerc, 35042, Rennes Cedex, France
| | - Cédric Fischmeister
- UMR 6226, CNRS, Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organometallics, Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 avenue du général Leclerc, 35042, Rennes Cedex, France
| | - Christian Bruneau
- UMR 6226, CNRS, Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organometallics, Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 avenue du général Leclerc, 35042, Rennes Cedex, France.
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48
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49
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Pucino M, Mougel V, Schowner R, Fedorov A, Buchmeiser MR, Copéret C. Cationic Silica-Supported N-Heterocyclic Carbene Tungsten Oxo Alkylidene Sites: Highly Active and Stable Catalysts for Olefin Metathesis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201510678] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Margherita Pucino
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Victor Mougel
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Alexey Fedorov
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
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50
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Pucino M, Mougel V, Schowner R, Fedorov A, Buchmeiser MR, Copéret C. Cationic Silica-Supported N-Heterocyclic Carbene Tungsten Oxo Alkylidene Sites: Highly Active and Stable Catalysts for Olefin Metathesis. Angew Chem Int Ed Engl 2016; 55:4300-2. [DOI: 10.1002/anie.201510678] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Margherita Pucino
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Victor Mougel
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Roman Schowner
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Alexey Fedorov
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry; University of Stuttgart; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences; ETH Zürich; Vladimir-Prelog-Weg 2 8093 Zurich Switzerland
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