1
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Lussier D, Ito E, McClain KR, Smith PW, Kwon H, Rutkauskaite R, Harvey BG, Shuh DK, Long JR. Metal-Halide Covalency, Exchange Coupling, and Slow Magnetic Relaxation in Triangular (Cp iPr5) 3U 3X 6 (X = Cl, Br, I) Clusters. J Am Chem Soc 2024; 146:21280-21295. [PMID: 39044394 PMCID: PMC11311243 DOI: 10.1021/jacs.3c11678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2023] [Revised: 07/08/2024] [Accepted: 07/10/2024] [Indexed: 07/25/2024]
Abstract
The actinide elements are attractive alternatives to transition metals or lanthanides for the design of exchange-coupled multinuclear single-molecule magnets. However, the synthesis of such compounds is challenging, as is unraveling any contributions from exchange coupling to the overall magnetism. To date, only a few actinide compounds have been shown to exhibit exchange coupling and single-molecule magnetism. Here, we report triangular uranium(III) clusters of the type (CpiPr5)3U3X (1-X; X = Cl, Br, I; CpiPr5 = pentaisopropylcyclopentadienyl), which are synthesized via reaction of the aryloxide-bridged precursor (CpiPr5)2U2(OPhtBu)4 with excess Me3SiX. Spectroscopic analysis suggests the presence of covalency in the uranium-halide interactions arising from 5f orbital participation in bonding. The dc magnetic susceptibility data reveal the presence of antiferromagnetic exchange coupling between the uranium(III) centers in these compounds, with the strength of the exchange decreasing down the halide series. Ac magnetic susceptibility data further reveal all compounds to exhibit slow magnetic relaxation under zero dc field. In 1-I, which exhibits particularly weak exchange, magnetic relaxation occurs via a Raman mechanism associated with the individual uranium(III) centers. In contrast, for 1-Br and 1-Cl, magnetic relaxation occurs via an Orbach mechanism, likely involving relaxation between ground and excited exchange-coupled states. Significantly, in the case of 1-Cl, magnetic relaxation is sufficiently slow such that open magnetic hysteresis is observed up to 2.75 K, and the compound exhibits a 100-s blocking temperature of 2.4 K. This compound provides the first example of magnetic blocking in a compound containing only actinide-based ions, as well as the first example involving the uranium(III) oxidation state.
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Affiliation(s)
- Daniel
J. Lussier
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Emi Ito
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - K. Randall McClain
- U.S.
Navy, Naval Air Warfare Center, Weapons Division, Research Department, Chemistry Division, China Lake, California 93555, United States
| | - Patrick W. Smith
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Hyunchul Kwon
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Ryte Rutkauskaite
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
| | - Benjamin G. Harvey
- U.S.
Navy, Naval Air Warfare Center, Weapons Division, Research Department, Chemistry Division, China Lake, California 93555, United States
| | - David K. Shuh
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
| | - Jeffrey R. Long
- Department
of Chemistry, University of California, Berkeley, California 94720, United States
- Chemical
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
- Department
of Chemical and Biomolecular Engineering, University of California, Berkeley, California 94720, United States
- Materials
Sciences Division, Lawrence Berkeley National
Laboratory, Berkeley, California 94720, United States
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2
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Gaydon Q, Bohle DS. Fluorotrithiophosphate Abstraction from the Difluoropentathiodiphosphate Dianion: d 8 and d 6 Complexes of [η 2-S 3PF] 2. Inorg Chem 2022; 61:15359-15367. [PMID: 36121761 DOI: 10.1021/acs.inorgchem.2c01692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Coordinative heterolysis of the difluoropentathiodiphosphate dianion [S5P2F2]2- results in the formal elimination of [S2PF] by complexes of the group 10 divalent metals nickel, palladium, and platinum. The remaining fragment of this cleavage, [S3PF]2- coordinates as an η2-ligand. Several complexes with this novel fluorotrithiophosphate were characterized structurally and spectroscopically with X-ray diffraction (XRD), infrared (IR) spectroscopy, and 31P and 19F nuclear magnetic resonance (NMR). In addition to mononuclear η2 chelate complexes, bridging complexes with η2-μ2-S3PF configurations result in binuclear nickel and ruthenium adducts. Facile methylation with methyl triflate of the uncoordinated sulfur atom leads to a complex with the methylthiofluorodithiophosphate ligand in a cationic complex, which hydrolyses with loss of fluoride to give complexed [S2P(O)SMe]2-. Alternatively hydrolysis can also lead to a binuclear Ni2(dppe)2(S3PF)(S2POF) complex. Divalent ruthenium π-aryl's form fluorotrithiophosphate complexes rapidly at room temperature to give bridged dimers with complete chloride substitution.
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Affiliation(s)
- Quentin Gaydon
- Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal H3A 0B8 Canada
| | - David Scott Bohle
- Department of Chemistry, McGill University, 801 Sherbrooke St. W., Montreal H3A 0B8 Canada
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3
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Biberger T, Nöthling N, Leutzsch M, Gordon CP, Copéret C, Fürstner A. An Anionic Dinuclear Ruthenium Dihydrogen Complex of Relevance for Alkyne gem-Hydrogenation. Angew Chem Int Ed Engl 2022; 61:e202201311. [PMID: 35363926 PMCID: PMC9322539 DOI: 10.1002/anie.202201311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Indexed: 11/12/2022]
Abstract
During an investigation into the fate of ruthenium precatalysts used for light-driven alkyne gem-hydrogenation reactions with formation of Grubbs-type ruthenium catalysts, it was found that the reaction of [(IPr)(η6 -cymene)RuCl2 ] with H2 under UV-irradiation affords an anionic dinuclear σ-dihydrogen complex, which is thermally surprisingly robust. Not only are anionic σ-complexes in general exceedingly rare, but the newly formed species seems to be the first example lacking any structural attributes able to counterbalance the negative charge and, in so doing, prevent oxidative insertion of the metal centers into the ligated H2 from occurring.
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Affiliation(s)
- Tobias Biberger
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
| | - Christopher P. Gordon
- Department of Chemistry and Applied Biosciences, ETH ZürichVladimir-Prelog-Weg 1–58093ZürichSwitzerland
| | - Christophe Copéret
- Department of Chemistry and Applied Biosciences, ETH ZürichVladimir-Prelog-Weg 1–58093ZürichSwitzerland
| | - Alois Fürstner
- Max-Planck-Institut für Kohlenforschung45470Mülheim/RuhrGermany
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4
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Biberger T, Nöthling N, Leutzsch M, Gordon CP, Copéret C, Fürstner A. An Anionic Dinuclear Ruthenium Dihydrogen Complex of Relevance for Alkyne gem‐Hydrogenation. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tobias Biberger
- Max-Planck-Institut für Kohlenforschung: Max-Planck-Institut fur Kohlenforschung Organometallc Chemistry 45470 Mülheim/Ruhr GERMANY
| | - Nils Nöthling
- Max-Planck-Institut für Kohlenforschung: Max-Planck-Institut fur Kohlenforschung Chemical Crystallography 45470 Mülheim/Ruhr GERMANY
| | - Markus Leutzsch
- Max-Planck-Institut für Kohlenforschung: Max-Planck-Institut fur Kohlenforschung NMR Spectroscopy 45470 Mülheim/Ruhr GERMANY
| | - Christopher P. Gordon
- ETH Zürich: Eidgenossische Technische Hochschule Zurich Inorganic Chemistry 8093 Zürich SWITZERLAND
| | - Christophe Copéret
- ETH Zürich: Eidgenossische Technische Hochschule Zurich Inorganic Chemistry 8093 Zürich SWITZERLAND
| | - Alois Fürstner
- Max-Planck-Institut fur Kohlenforschung Organometallic Chemistry Kaiser-Wilhelm-Platz 1 45470 Mülheim/Ruhr GERMANY
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5
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Promchana P, Choojun K, Leesakul N, Saithong S, Chainok K, Sooknoi T. Experimental insights into catalytic oxidation of 1,6-hexanediol to ε-caprolactone over ( p-cymene)RuCl 2(L) complexes in non-polar media. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00159d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The activity-pocket site dimension (θc) dependence of (p-cymene)RuCl2(L) supports associative interchange mechanism for 1,6-hexandiol oxidation to ε-caprolactone. Methyl isobutyl carbinol, a H-accepting product, reacts with Ru, causing deactivation.
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Affiliation(s)
- Pratya Promchana
- Department of Chemistry, School of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand
| | - Kittisak Choojun
- Department of Chemistry, School of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand
- Catalytic Chemistry Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand
| | - Nararak Leesakul
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla, 90112, Thailand
| | - Saowanit Saithong
- Division of Physical Science and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat-Yai, Songkhla, 90112, Thailand
| | - Kittipong Chainok
- Materials and Textile Technology, Faculty of Science and Technology, Thammasat University, Khlong Luang, Pathum Thani, 12121 Thailand
| | - Tawan Sooknoi
- Department of Chemistry, School of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand
- Catalytic Chemistry Research Unit, School of Science, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand
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6
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Kisets I, Zabelinskaya S, Gelman D. Synthesis and Catalytic Properties of a Carbometalated Half-Sandwich Ru(II) Complex Bearing a Rigid Polyaromatic Tether. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00611] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilya Kisets
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Sofiya Zabelinskaya
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitri Gelman
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
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7
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Abstract
Ruthenium olefin metathesis catalysts are one of the most commonly used class of catalysts. There are multiple reviews on their uses in various branches of chemistry and other sciences but a detailed review of their decomposition is missing, despite a large number of recent and important advances in this field. In particular, in the last five years several new mechanism of decomposition, both olefin-driven as well as induced by external agents, have been suggested and used to explain differences in the decomposition rates and the metathesis activities of both standard, N-heterocyclic carbene-based systems and the recently developed cyclic alkyl amino carbene-containing complexes. Here we present a review which explores the last 30 years of the decomposition studied on ruthenium olefin metathesis catalyst driven by both intrinsic features of such catalysts as well as external chemicals.
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8
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Kitano T, Komuro T, Sato K, Tobita H. Synthesis of ruthenium–bis(silyl) chelate complexes without carbonyl ligands by reactions of a bis(allyl)ruthenium(II) complex with bis(hydrosilyl)xanthene and phosphines. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121316] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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9
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Zhu J, Chen PH, Lu G, Liu P, Dong G. Ruthenium-Catalyzed Reductive Cleavage of Unstrained Aryl-Aryl Bonds: Reaction Development and Mechanistic Study. J Am Chem Soc 2019; 141:18630-18640. [PMID: 31674779 PMCID: PMC7081785 DOI: 10.1021/jacs.9b11605] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cleavage of carbon-carbon bonds has been found in some important industrial processes, for example, petroleum cracking, and has inspired development of numerous synthetic methods. However, nonpolar unstrained C(aryl)-C(aryl) bonds remain one of the toughest bonds to be activated. As a detailed study of a fundamental reaction mode, here a full story is described about our development of a Ru-catalyzed reductive cleavage of unstrained C(aryl)-C(aryl) bonds. A wide range of biaryl compounds that contain directing groups (DGs) at 2,2' positions can serve as effective substrates. Various heterocycles, such as pyridine, quinoline, pyrimidine, and pyrazole, can be employed as DGs. Besides hydrogen gas, other reagents, such as Hantzsch ester, silanes, and alcohols, can be employed as terminal reductants. The reaction is pH neutral and free of oxidants; thus a number of functional groups are tolerated. Notably, a one-pot C-C activation/C-C coupling has been realized. Computational and experimental mechanistic studies indicate that the reaction involves a ruthenium(II) monohydride-mediated C(aryl)-C(aryl) activation and the resting state of the catalyst is a η4-coordinated ruthenium(II) dichloride complex, which could inspire development of other transformations based on this reaction mode.
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Affiliation(s)
- Jun Zhu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Peng-hao Chen
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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10
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Cherepakhin V, Williams TJ. Catalyst Evolution in Ruthenium-Catalyzed Coupling of Amines and Alcohols. ACS Catal 2019. [DOI: 10.1021/acscatal.9b03679] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Valeriy Cherepakhin
- Donald P. and Katherine B. Loker Hydrocarbon Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, United States
| | - Travis J. Williams
- Donald P. and Katherine B. Loker Hydrocarbon Institute and Department of Chemistry, University of Southern California, Los Angeles, California 90089-1661, United States
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11
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Zafar M, Ramalakshmi R, Pathak K, Ahmad A, Roisnel T, Ghosh S. Five-Membered Ruthenacycles: Ligand-Assisted Alkyne Insertion into 1,3-N,S-Chelated Ruthenium Borate Species. Chemistry 2019; 25:13537-13546. [PMID: 31332858 DOI: 10.1002/chem.201902663] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2019] [Indexed: 11/10/2022]
Abstract
Building upon previous work, the chemistry of [(η6 -p-cymene)Ru{P(OMe)2 OR}Cl2 ], (R=H or Me) has been extended with [H2 B(mbz)2 ]- (mbz=2-mercaptobenzothiazolyl) using different Ru precursors and borate ligands. As a result, a series of 1,3-N,S-chelated ruthenium borate complexes, for example, [(κ2 -N,S-L)PR3 Ru{κ3 -H,S,S'-H2 B(L)2 }], (2 a-d and 2 a'-d'; R=Ph, Cy, OMe or OPh and L=C5 H4 NS or C7 H4 NS2 ) and [Ru{κ3 -H,S,S'-H2 B(L)2 }2 ], (3: L=C5 H4 NS, 3': L=C7 H4 NS2 ) were isolated upon treatment of [(η6 -p-cymene)RuCl2 PR3 ], 1 a-d (R=Ph, Cy, OMe or OPh) with [H2 B(mp)2 ]- or [H2 B(mbz)2 ]- ligands (mp=2-mercaptopyridyl). All the Ru borate complexes, 2 a-d and 2 a'-d' are stabilized by phosphine/phosphite and hemilabile N,S-chelating ligands. Treatment of these Ru borate species, 2 a'-c' with various terminal alkynes yielded two different types of five-membered ruthenacycle species, namely [PR3 {C7 H4 S2 -(E)-N-C=CH(R')}Ru{κ3 -H,S,S'-H2 B(L)2 }], (4-4'; R=Ph and R'=CO2 Me or C6 H4 NO2 ; L=C7 H4 NS2 ) and [PR3 {C7 H4 NS-(E)-S-C=CH(R')}Ru{κ3 -H,S,S'-H2 B(L)2 }], (5-5', 6 and 7; R=Ph, Cy or OMe and R'=CO2 Me or C6 H4 NO2 ; L=C7 H4 NS2 ). All these five-membered ruthenacycle species contain an exocyclic C=C moiety, presumably formed by the insertion of a terminal alkyne into the Ru-N and Ru-S bonds. The new species have been characterized spectroscopically and the structures were further confirmed by single-crystal X-ray diffraction analysis. Theoretical studies and chemical-bonding analyses established that charge transfer occurs from phosphorus to ruthenium center following the trend PCy3 <PPh3 <P(OPh)3 <P(OMe)3 .
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Affiliation(s)
- Mohammad Zafar
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Rongala Ramalakshmi
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Kriti Pathak
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Asif Ahmad
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
| | - Thierry Roisnel
- Univ Rennes, CNRS, Institut des Sciences Chimiques de Rennes, UMR 6226, 35042, Rennes, France
| | - Sundargopal Ghosh
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600036, India
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12
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Spiegelberg B, Dell'Acqua A, Xia T, Spannenberg A, Tin S, Hinze S, de Vries JG. Additive-Free Isomerization of Allylic Alcohols to Ketones with a Cobalt PNP Pincer Catalyst. Chemistry 2019; 25:7820-7825. [PMID: 30973658 DOI: 10.1002/chem.201901148] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Indexed: 11/06/2022]
Abstract
Catalytic isomerization of allylic alcohols in ethanol as a green solvent was achieved by using air and moisture stable cobalt (II) complexes in the absence of any additives. Under mild conditions, the cobalt PNP pincer complex substituted with phenyl groups on the phosphorus atoms appeared to be the most active. High rates were obtained at 120 °C, even though the addition of one equivalent of base increases the speed of the reaction drastically. Although some evidence was obtained supporting a dehydrogenation-hydrogenation mechanism, it was proven that this is not the major mechanism. Instead, the cobalt hydride complex formed by dehydrogenation of ethanol is capable of double-bond isomerization through alkene insertion-elimination.
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Affiliation(s)
- Brian Spiegelberg
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Andrea Dell'Acqua
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Tian Xia
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Anke Spannenberg
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Sergey Tin
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Sandra Hinze
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
| | - Johannes G de Vries
- Leibniz-Institut für Katalyse e.V. an der, Universität Rostock, Albert-Einstein-Strasse 29a, 18059, Rostock, Germany
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13
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Das K, Dutta M, Das B, Srivastava HK, Kumar A. Efficient Pincer‐Ruthenium Catalysts for Kharasch Addition of Carbon Tetrachloride to Styrene. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900107] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Kanu Das
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Moumita Dutta
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Babulal Das
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Hemant Kumar Srivastava
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
| | - Akshai Kumar
- Department of ChemistryIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
- Center for NanotechnologyIndian Institute of Technology Guwahati Guwahati- 781039, Assam India
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14
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Müller DS, Raoul Y, Le Nôtre J, Baslé O, Mauduit M. In Situ Generation of Ru-Based Metathesis Catalyst. A Systematic Study. ACS Catal 2019. [DOI: 10.1021/acscatal.9b00244] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daniel S. Müller
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
| | - Yann Raoul
- OLEON SAS, Venette BP 20609, 60206 Compiègne Cedex, France
| | - Jérôme Le Nôtre
- PIVERT SAS, Rue les Rives de l’Oise CS50149, 60201 Compiègne Cedex, France
| | - Olivier Baslé
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
| | - Marc Mauduit
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
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15
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Miura H, Terajima S, Shishido T. Carboxylate-Directed Addition of Aromatic C–H Bond to Aromatic Aldehydes under Ruthenium Catalysis. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00680] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Hiroki Miura
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
| | | | - Tetsuya Shishido
- Elements Strategy Initiative for Catalysts & Batteries, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8520, Japan
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16
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Chotard F, Malacea-Kabbara R, Balan C, Bodio E, Picquet M, Richard P, Ponce-Vargas M, Fleurat-Lessard P, Le Gendre P. Atom Transfer Radical Addition Catalyzed by Ruthenium–Arene Complexes Bearing a Hybrid Phosphine–Diene Ligand. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00851] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Florian Chotard
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Raluca Malacea-Kabbara
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Cédric Balan
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Ewen Bodio
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Michel Picquet
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Philippe Richard
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Miguel Ponce-Vargas
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
| | - Pierre Le Gendre
- Institut de Chimie Moléculaire de l′Université de Bourgogne (ICMUB, UMR-CNRS 6302), Université de Bourgogne Franche-Comté, 9 av. A. Savary, 21078 Dijon, France
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17
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Santilli C, Makarov IS, Fristrup P, Madsen R. Dehydrogenative Synthesis of Carboxylic Acids from Primary Alcohols and Hydroxide Catalyzed by a Ruthenium N-Heterocyclic Carbene Complex. J Org Chem 2016; 81:9931-9938. [DOI: 10.1021/acs.joc.6b02105] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carola Santilli
- Department
of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Ilya S. Makarov
- Department
of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Peter Fristrup
- Department
of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Robert Madsen
- Department
of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
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18
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Białek MJ, Latos-Grażyński L. Palladium(II), Ruthenium(II), and Ruthenium(III) Complexes of 23-Thiaazuliporphyrin: The Case of Coordination-Induced Contraction. Inorg Chem 2016; 55:1758-69. [DOI: 10.1021/acs.inorgchem.5b02684] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Michał J. Białek
- Department of Chemistry, University of Wrocław, F.
Joliot-Curie 14, 50-383 Wrocław, Poland
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19
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Kaufhold S, Petermann L, Staehle R, Rau S. Transition metal complexes with N-heterocyclic carbene ligands: From organometallic hydrogenation reactions toward water splitting. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.12.004] [Citation(s) in RCA: 92] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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20
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Risse J, Dutta B, Solari E, Scopelliti R, Severin K. Contributions to the Chemistry of the Cyclopentadienyl Complex [Cp∧RuCl2]2(“Cp-roof” = η5-1-Methoxy-2,4-tert-butyl-3-neopentylcyclopentadienyl). Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400048] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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21
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Aznar R, Grabulosa A, Mannu A, Muller G, Sainz D, Moreno V, Font-Bardia M, Calvet T, Lorenzo J. [RuCl2(η6-p-cymene)(P*)] and [RuCl2(κ-P*-η6-arene)] Complexes Containing P-Stereogenic Phosphines. Activity in Transfer Hydrogenation and Interactions with DNA. Organometallics 2013. [DOI: 10.1021/om3012294] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Rosario Aznar
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Arnald Grabulosa
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Alberto Mannu
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
- Istituto
di Chimica Biomolecolare, CNR, trav. La Crucca 3, 07100, Sassari, Italy
| | - Guillermo Muller
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Daniel Sainz
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Virtudes Moreno
- Departament de Quı́mica Inorgànica, Universitat de Barcelona, Martí
i Franquès 1-11, E-08028 Barcelona, Spain
| | - Mercè Font-Bardia
- Departament de Crystal·lografia,
Mineralogia i Dipòsits
Minerals, Universitat de Barcelona, Martı́ i Franquès s/n, E-08028 Barcelona, Spain
| | - Teresa Calvet
- Departament de Crystal·lografia,
Mineralogia i Dipòsits
Minerals, Universitat de Barcelona, Martı́ i Franquès s/n, E-08028 Barcelona, Spain
| | - Julia Lorenzo
- Institut de Biotecnologia i de Biomedicina, Universitat Autònoma de Barcelona, 08193 Bellaterra,
Barcelona, Spain
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22
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Addy DA, Bates JI, Kelly MJ, Riddlestone IM, Aldridge S. Aminoborane σ Complexes: Significance of Hydride Co-ligands in Dynamic Processes and Dehydrogenative Borylene Formation. Organometallics 2013. [DOI: 10.1021/om400040q] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- David A. Addy
- Inorganic Chemistry
Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Joshua I. Bates
- Inorganic Chemistry
Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Michael J. Kelly
- Inorganic Chemistry
Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Ian M. Riddlestone
- Inorganic Chemistry
Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
| | - Simon Aldridge
- Inorganic Chemistry
Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, U.K
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23
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Tabari DS, Tolentino DR, Schrodi Y. Reactivation of a Ruthenium-Based Olefin Metathesis Catalyst. Organometallics 2013; 32:5-8. [PMID: 23355756 PMCID: PMC3551586 DOI: 10.1021/om301042a] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
1(st) Generation Hoveyda-Grubbs olefin metathesis catalyst was purposely decomposed in the presence of ethylene yielding inorganic species that are inactive in the ring-closing metathesis (RCM) of benchmark substrate diethyldiallyl malonate (DEDAM). The decomposed catalyst was treated with 1-(3,5-diisopropoxyphenyl)-1-phenylprop-2-yn-1-ol (3) to generate an olefin metathesis active ruthenium indenylidene-ether complex in 43 % yield. This complex was also prepared independently by reacting RuCl(2)(p-cymene)(PCy(3)) with organic precursor 3. The activity of the isolated reactivated catalyst in the RCM of DEDAM is similar to that of the independently prepared complex.
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Affiliation(s)
| | | | - Yann Schrodi
- Department of Chemistry and Biochemistry, California State University Northridge, Northridge, California, 91330
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24
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Makarov IS, Fristrup P, Madsen R. Mechanistic Investigation of the Ruthenium-N-Heterocyclic-Carbene-Catalyzed Amidation of Amines with Alcohols. Chemistry 2012; 18:15683-92. [DOI: 10.1002/chem.201202400] [Citation(s) in RCA: 63] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Indexed: 01/20/2023]
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25
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Tskhovrebov AG, Solari E, Scopelliti R, Severin K. Activation of Nitrous Oxide by Dinuclear Ruthenium Complexes. Organometallics 2012. [DOI: 10.1021/om300786f] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexander G. Tskhovrebov
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL),
CH-1015 Lausanne, Switzerland
| | - Euro Solari
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL),
CH-1015 Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL),
CH-1015 Lausanne, Switzerland
| | - Kay Severin
- Institut
des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL),
CH-1015 Lausanne, Switzerland
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26
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Yi XY, Ng HY, Cheung WM, Sung HHY, Williams ID, Leung WH. Dinuclear Ruthenium Nitrido Complexes Supported by an Oxygen Tripodal Ligand. Inorg Chem 2012; 51:10529-35. [DOI: 10.1021/ic300638r] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiao-Yi Yi
- School of Chemistry
and Chemical Engineering, Central South University, Changsha, Hunan 410083, People’s
Republic of China
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of
China
| | - Ho-Yuen Ng
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of
China
| | - Wai-Man Cheung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of
China
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of
China
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of
China
| | - Wa-Hung Leung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay,
Kowloon, Hong Kong, People’s Republic of
China
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27
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Yuan J, Sun Y, Yu GA, Zhao C, She NF, Mao SL, Huang PS, Han ZJ, Yin J, Liu SH. Phenyl substituted indenylphosphine ruthenium complexes as catalysts for dehydrogenation of alcohols. Dalton Trans 2012; 41:10309-16. [PMID: 22806176 DOI: 10.1039/c2dt30499f] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Thermal treatment of (1H-inden-3-yl)dicyclohexylphosphinium tetrafluoroborate (1) and (3-mesityl-1H-inden-3-yl)dicyclohexylphosphinium tetrafluoroborate (3) with tBuONa followed by [(η(6)-cymene)RuCl(2))](2) in methanol gave the adduct {(η(6)-cymene)RuCl(2)[(1H-inden-3-yl)PCy(2)]} (6) and {(η(6)-cymene)RuCl(2)[(3-mesityl-1H-inden-3-yl)PCy(2)]} (7), respectively. Thermal treatment of (2-phenyl-1H-inden-3-yl)dicyclohexylphosphinium tetrafluoroborate (4) with tBuONa followed by [(η(6)-cymene)RuCl(2))](2) or RuCl(3)·3H(2)O in methanol gave {Ru[κ(P):(η(6)-2-phenyl-1H-inden-3-yl)PCy(2)]Cl(2)} (8). Whereas (2-mesityl-1H-inden-3-yl)dicyclohexylphosphine (5) reacted with [(η(6)-cymene)RuCl(2))](2) (in toluene) or RuCl(3)·3H(2)O (in ethanol) to afford {Ru[κ(P):(η(6)-2-mesityl-1H-inden-3-yl)PCy(2)]Cl(2)} (9). The molecular structures of complexes 6, 8 and 9 have been determined by single-crystal X-ray diffraction analysis. In addition, complexes 8 and 9 have been found to catalyze the acceptorless dehydrogenation of alcohols in toluene. 9 displayed high activity and different substrates, including cyclic and linear alcohols, were efficiently oxidized to ketones by using 2.0 mol% of catalyst.
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Affiliation(s)
- Jia Yuan
- Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, P R China
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28
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Qiao W, Shao M, Wang J. Synthesis, structure and catalytic study of chloro-bridged two-core ruthenium carbene complexes. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.05.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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29
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Pérez-Torrente JJ, Cunchillos C, Gómez-Bautista D, Jiménez MV, Castarlenas R, Lahoz FJ, Oro LA. Synthesis, structure, and kinetic studies on [RuCl2(NCCH3)2(cod)]. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.708740] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Affiliation(s)
- Jesús J. Pérez-Torrente
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
| | - Carmen Cunchillos
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
| | - Daniel Gómez-Bautista
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
| | - M. Victoria Jiménez
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
| | - Ricardo Castarlenas
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
| | - Fernando J. Lahoz
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
| | - Luis A. Oro
- a Departamento de Química Inorgánica , Instituto de Síntesis Química y Catálisis Homogénea-ISQCH, Universidad de Zaragoza-CSIC , C/Pedro Cerbuna, 12. 50009-Zaragoza , Spain
- b Centre for Refining & Petrochemicals, King Fahd University of Petroleum and Minerals , Dhahran 31261 , Saudi Arabia
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30
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Grellier M, Sabo-Etienne S. Dehydrogenation processes via C–H activation within alkylphosphines. Chem Commun (Camb) 2012; 48:34-42. [DOI: 10.1039/c1cc14676a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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31
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Maggi A, Madsen R. Dehydrogenative Synthesis of Imines from Alcohols and Amines Catalyzed by a Ruthenium N-Heterocyclic Carbene Complex. Organometallics 2011. [DOI: 10.1021/om201095m] [Citation(s) in RCA: 102] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Agnese Maggi
- Department of Chemistry, Technical University of Denmark, DK-2800
Lyngby, Denmark
| | - Robert Madsen
- Department of Chemistry, Technical University of Denmark, DK-2800
Lyngby, Denmark
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32
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Hans M, Willem Q, Wouters J, Demonceau A, Delaude L. Synthesis and Catalytic Evaluation of Ruthenium–Arene Complexes Bearing Imidazol(in)ium-2-thiocarboxylate Ligands. Organometallics 2011. [DOI: 10.1021/om2006529] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Morgan Hans
- Laboratory of Macromolecular
Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège,
Belgium
| | - Quentin Willem
- Laboratory of Macromolecular
Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège,
Belgium
| | - Johan Wouters
- Department of Chemistry, Facultés Universitaires N.-D. de la Paix, 61 Rue de Bruxelles,
5000 Namur, Belgium
| | - Albert Demonceau
- Laboratory of Macromolecular
Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège,
Belgium
| | - Lionel Delaude
- Laboratory of Macromolecular
Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège,
Belgium
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33
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Sølvhøj A, Madsen R. Dehydrogenative Coupling of Primary Alcohols To Form Esters Catalyzed by a Ruthenium N-Heterocyclic Carbene Complex. Organometallics 2011. [DOI: 10.1021/om200928b] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amanda Sølvhøj
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
| | - Robert Madsen
- Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark
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34
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Borguet Y, Sauvage X, Zaragoza G, Demonceau A, Delaude L. Synthesis and Catalytic Evaluation in Olefin Metathesis of a Second-Generation Homobimetallic Ruthenium–Arene Complex Bearing a Vinylidene Ligand. Organometallics 2011. [DOI: 10.1021/om2001074] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yannick Borguet
- Laboratory of Macromolecular Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège, Belgium
| | - Xavier Sauvage
- Laboratory of Macromolecular Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège, Belgium
| | - Guillermo Zaragoza
- Unidade de Difracción de Raios X, Edificio CACTUS, Universidade de Santiago de Compostela, Campus Sur, 15782 Santiago de Compostela, Spain
| | - Albert Demonceau
- Laboratory of Macromolecular Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège, Belgium
| | - Lionel Delaude
- Laboratory of Macromolecular Chemistry and Organic Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000 Liège, Belgium
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35
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Granzhan A, Schouwey C, Riis-Johannessen T, Scopelliti R, Severin K. Connection of Metallamacrocycles via Dynamic Covalent Chemistry: A Versatile Method for the Synthesis of Molecular Cages. J Am Chem Soc 2011; 133:7106-15. [DOI: 10.1021/ja200580x] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Anton Granzhan
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Clément Schouwey
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Thomas Riis-Johannessen
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Rosario Scopelliti
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
| | - Kay Severin
- Institut des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland
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36
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Tsoureas N, Nunn J, Bevis T, Haddow MF, Hamilton A, Owen GR. Strong agostic-type interactions in ruthenium benzylidene complexes containing 7-azaindole based scorpionate ligands. Dalton Trans 2011; 40:951-8. [DOI: 10.1039/c0dt01148g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Petrov AR, Bannenberg T, Daniliuc CG, Jones PG, Tamm M. The use of 1,2-dipiperidinoacetylene for the preparation of monometallic diaminoacetylene and homo- or heterobimetallic diaminodicarbene ruthenium(ii) complexes. Dalton Trans 2011; 40:10503-12. [DOI: 10.1039/c1dt10606f] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Alex R Petrov
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, D-38106, Braunschweig, Germany
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38
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Yi XY, Ng HY, Lai CS, Williams ID, Leung WH. Syntheses, structures, and reactivity of ruthenium(II) hydride complexes containing Kläui’s oxygen tripodal ligand. Sci China Chem 2010. [DOI: 10.1007/s11426-010-4090-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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39
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Dam JH, Osztrovszky G, Nordstrøm LU, Madsen R. Amide synthesis from alcohols and amines catalyzed by ruthenium N-heterocyclic carbene complexes. Chemistry 2010; 16:6820-7. [PMID: 20437429 DOI: 10.1002/chem.201000569] [Citation(s) in RCA: 157] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The direct synthesis of amides from alcohols and amines is described with the simultaneous liberation of dihydrogen. The reaction does not require any stoichiometric additives or hydrogen acceptors and is catalyzed by ruthenium N-heterocyclic carbene complexes. Three different catalyst systems are presented that all employ 1,3-diisopropylimidazol-2-ylidene (IiPr) as the carbene ligand. In addition, potassium tert-butoxide and a tricycloalkylphosphine are required for the amidation to proceed. In the first system, the active catalyst is generated in situ from [RuCl(2)(cod)] (cod=1,5-cyclooctadiene), 1,3-diisopropylimidazolium chloride, tricyclopentylphosphonium tetrafluoroborate, and base. The second system uses the complex [RuCl(2)(IiPr)(p-cymene)] together with tricyclohexylphosphine and base, whereas the third system employs the Hoveyda-Grubbs 1st-generation metathesis catalyst together with 1,3-diisopropylimidazolium chloride and base. A range of different primary alcohols and amines have been coupled in the presence of the three catalyst systems to afford the corresponding amides in moderate to excellent yields. The best results are obtained with sterically unhindered alcohols and amines. The three catalyst systems do not show any significant differences in reactivity, which indicates that the same catalytically active species is operating. The reaction is believed to proceed by initial dehydrogenation of the primary alcohol to the aldehyde that stays coordinated to ruthenium and is not released into the reaction mixture. Addition of the amine forms the hemiaminal that undergoes dehydrogenation to the amide. A catalytic cycle is proposed with the {(IiPr)Ru(II)} species as the catalytically active components.
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Affiliation(s)
- Johan Hygum Dam
- Department of Chemistry, Building 201, Technical University of Denmark, 2800 Kgs. Lyngby, Denmark
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Schiemenz GP. The impact of ion pair association upon the 1H NMR spectra of cationic complexes akin to Grubbs catalysts. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2010; 48:261-269. [PMID: 20157902 DOI: 10.1002/mrc.2570] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A reconsideration of the (1)H NMR spectra of cationic transition metal complexes exhibiting the features of cyclophanes on the basis of Mislow's classification of topic groups arrives at the conclusion that the spectral changes triggered by chiral counterions reflect an intracationic diastereotopication of enantiotopic protons rather than the existence of pairs of long-lived diastereomeric ion pairs.
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