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Farkas V, Csókás D, Erdélyi Á, Turczel G, Bényei A, Nagy T, Kéki S, Pápai I, Tuba R. "Inverted" Cyclic(Alkyl)(Amino)Carbene (CAAC) Ruthenium Complex Catalyzed Isomerization Metathesis (ISOMET) of Long Chain Olefins to Propylene at Low Ethylene Pressure. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2024; 11:e2400118. [PMID: 38482751 PMCID: PMC11109630 DOI: 10.1002/advs.202400118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 02/20/2024] [Indexed: 05/23/2024]
Abstract
Isomerization Metathesis (ISOMET) reaction is an emerging tool for "open loop" chemical recycling of polyethylene to propylene. Novel, latent N-Alkyl substituted Cyclic(Alkyl)(Amino)Carbene (CAAC)-ruthenium catalysts (5a-Ru, 3b-Ru - 6c-Ru) are developed rendering "inverted" chemical structure while showing enhanced ISOMET activity in combination with (RuHCl)(CO)(PPh3)3 (RuH) double bond isomerization co-catalyst. Systematic investigations reveal that the steric hindrance of the substituents on nitrogen and carbon atom adjacent to carbene moiety in the CAAC ligand have significantly improved the catalytic activity and robustness. In contrast to the NHC-Ru and CAAC-Ru catalyst systems known so far, these systems show higher isomerization metathesis (ISOMET) activity (TON: 7400) on the model compound 1-octadecene at as low as 3.0 bar optimized pressure, using technical grade (3.0) ethylene. The propylene content formed in the gas phase can reach up to 20% by volume.
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Affiliation(s)
- Vajk Farkas
- Institute of Materials and Environmental ChemistryResearch Centre for Natural SciencesMagyar tudósok körútja 2BudapestH‐1117Hungary
- Department of Organic Chemistry and TechnologyBudapest University of Technology and EconomicsSzent Gellért tér 4BudapestH‐1111Hungary
| | - Dániel Csókás
- Institute of Organic ChemistryResearch Centre for Natural SciencesMagyar tudósok körútja 2BudapestH‐1117Hungary
| | - Ádám Erdélyi
- Institute of Materials and Environmental ChemistryResearch Centre for Natural SciencesMagyar tudósok körútja 2BudapestH‐1117Hungary
- Research Centre for BiochemicalEnvironmental and Chemical EngineeringDepartment of MOL Hydrocarbon and Coal ProcessingUniversity of PannoniaEgyetem u. 10VeszprémH‐8210Hungary
| | - Gábor Turczel
- Institute of Materials and Environmental ChemistryResearch Centre for Natural SciencesMagyar tudósok körútja 2BudapestH‐1117Hungary
| | - Attila Bényei
- Department of Physical ChemistryFaculty of Science and TechnologyUniversity of DebrecenEgyetem tér 1DebrecenH‐4032Hungary
| | - Tibor Nagy
- Department of Applied ChemistryFaculty of Science and TechnologyUniversity of DebrecenEgyetem tér 1DebrecenH‐4032Hungary
| | - Sándor Kéki
- Department of Applied ChemistryFaculty of Science and TechnologyUniversity of DebrecenEgyetem tér 1DebrecenH‐4032Hungary
| | - Imre Pápai
- Institute of Organic ChemistryResearch Centre for Natural SciencesMagyar tudósok körútja 2BudapestH‐1117Hungary
| | - Róbert Tuba
- Institute of Materials and Environmental ChemistryResearch Centre for Natural SciencesMagyar tudósok körútja 2BudapestH‐1117Hungary
- Research Centre for BiochemicalEnvironmental and Chemical EngineeringDepartment of MOL Hydrocarbon and Coal ProcessingUniversity of PannoniaEgyetem u. 10VeszprémH‐8210Hungary
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2
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Foscato M, Occhipinti G, Hopen Eliasson SH, Jensen VR. Automated de Novo Design of Olefin Metathesis Catalysts: Computational and Experimental Analysis of a Simple Thermodynamic Design Criterion. J Chem Inf Model 2024; 64:412-424. [PMID: 38247361 PMCID: PMC10806812 DOI: 10.1021/acs.jcim.3c01649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 12/14/2023] [Accepted: 12/14/2023] [Indexed: 01/23/2024]
Abstract
Methods for computational de novo design of inorganic molecules have paved the way for automated design of homogeneous catalysts. Such studies have so far relied on correlation-based prediction models as fitness functions (figures of merit), but the soundness of these approaches has yet to be tested by experimental verification of de novo-designed catalysts. Here, a previously developed criterion for the optimization of dative ligands L in ruthenium-based olefin metathesis catalysts RuCl2(L)(L')(═CHAr), where Ar is an aryl group and L' is a phosphine ligand dissociating to activate the catalyst, was used in de novo design experiments. These experiments predicted catalysts bearing an N-heterocyclic carbene (L = 9) substituted by two N-bound mesityls and two tert-butyl groups at the imidazolidin-2-ylidene backbone to be promising. Whereas the phosphine-stabilized precursor assumed by the prediction model could not be made, a pyridine-stabilized ruthenium alkylidene complex (17) bearing carbene 9 was less active than a known leading pyridine-stabilized Grubbs-type catalyst (18, L = H2IMes). A density functional theory-based analysis showed that the unsubstituted metallacyclobutane (MCB) intermediate generated in the presence of ethylene is the likely resting state of both 17 and 18. Whereas the design criterion via its correlation between the stability of the MCB and the rate-determining barrier indeed seeks to stabilize the MCB, it relies on RuCl2(L)(L')(═CH2) adducts as resting states. The change in resting state explains the discrepancy between the prediction and the actual performance of catalyst 17. To avoid such discrepancies and better address the multifaceted challenges of predicting catalytic performance, future de novo catalyst design studies should explore and test design criteria incorporating information from more than a single relative energy or intermediate.
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Affiliation(s)
- Marco Foscato
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Giovanni Occhipinti
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | | | - Vidar R. Jensen
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
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3
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Biological Activities of Ruthenium NHC Complexes: An Update. Antibiotics (Basel) 2023; 12:antibiotics12020365. [PMID: 36830276 PMCID: PMC9952499 DOI: 10.3390/antibiotics12020365] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 02/05/2023] [Accepted: 02/06/2023] [Indexed: 02/12/2023] Open
Abstract
Ruthenium N-heterocyclic carbene (NHC) complexes have unique physico-chemical properties as catalysts and a huge potential in medicinal chemistry and pharmacology, exhibiting a variety of notable biological activities. In this review, the most recent studies on ruthenium NHC complexes are summarized, focusing specifically on antimicrobial and antiproliferative activities. Ruthenium NHC complexes are generally active against Gram-positive bacteria, such as Bacillus subtilis, Staphylococcus aureus, Micrococcus luteus, Listeria monocytogenes and are seldom active against Gram-negative bacteria, including Salmonella typhimurium, Pseudomonas aeruginosa and Escherichia coli and fungal strains of Candida albicans. The antiproliferative activity was tested against cancer cell lines of human colon, breast, cervix, epidermis, liver and rat glioblastoma cell lines. Ruthenium NHC complexes generally demonstrated cytotoxicity higher than standard anticancer drugs. Further studies are needed to explore the mechanism of action of these interesting compounds.
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4
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Dangalov M, Petrov P, Vassilev NG. N-heterocyclic bis-carbene palladium complexes derived from functionalized naphthalimides – Synthesis, Structure elucidation and DFT study. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.129944] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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5
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Planer S, Małecki P, Trzaskowski B, Kajetanowicz A, Grela K. Sterically Tuned N-Heterocyclic Carbene Ligands for the Efficient Formation of Hindered Products in Ru-Catalyzed Olefin Metathesis. ACS Catal 2020; 10:11394-11404. [PMID: 33123411 PMCID: PMC7587146 DOI: 10.1021/acscatal.0c02770] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 09/03/2020] [Indexed: 11/28/2022]
Abstract
Formation of tetrasubstituted C-C double bonds via olefin metathesis is considered very challenging for classical Ru-based complexes. In the hope to improve this condition, three ruthenium olefin metathesis catalysts bearing sterically reduced N-heterocyclic carbene (NHC) ligands with xylyl "arms" were synthesized, characterized using both computational and experimental techniques, and tested in a number of challenging reactions. The catalysts are predicted to initiate much faster than the analogue with mesityl N-substituents. We also foreboded the rotation of xylyl side groups at ambient temperature and the existence of all four atropoisomers in the solution, which was in agreement with experimental data. These catalysts exhibited high activity at relatively low temperatures (45-60 °C) and at reduced catalyst loadings in various reactions of sterically hindered alkenes, including complex polyfunctional substrates of pharmaceutical interest, such as yangonin precursors, chrysantemic acid derivatives, analogues of cannabinoid agonists, α-terpineol, and finally a thermally unstable peroxide.
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Affiliation(s)
- Sebastian Planer
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Paweł Małecki
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Bartosz Trzaskowski
- Centre
of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warsaw, Poland
| | - Anna Kajetanowicz
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Karol Grela
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
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6
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Voccia M, Nolan SP, Cavallo L, Poater A. The activity of indenylidene derivatives in olefin metathesis catalysts. Beilstein J Org Chem 2018; 14:2956-2963. [PMID: 30546480 PMCID: PMC6278753 DOI: 10.3762/bjoc.14.275] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2018] [Accepted: 11/15/2018] [Indexed: 12/26/2022] Open
Abstract
The first turnover event of an olefin metathesis reaction using a new family of homogenous Ru-based catalysts bearing modified indenylidene ligands has been investigated, using methoxyethylene as a substrate. The study is carried out by means of density functional theory (DFT). The indenylidene ligands are decorated with ortho-methyl and isopropyl groups at both ortho positions of their phenyl ring. DFT results highlight the more sterically demanding indenylidenes have to undergo a more exothermic first phosphine dissociation step. Overall, the study emphasises advantages of increased steric hindrance in promoting the phosphine release, and the relative stability of the corresponding metallacycle over classical ylidene ligands. Mayer bond orders and steric maps provide structural reasons for these effects, whereas NICS aromaticity and conceptual DFT confirm that the electronic parameters do not play a significant role.
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Affiliation(s)
- Maria Voccia
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/ Mª Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
| | - Steven P Nolan
- Department of Chemistry and Center for Sustainable Chemistry, Ghent University, Krijgslaan 281, S-3, B-9000 Ghent, Belgium
- Department of Chemistry, College of Science King Saud University, P. O. Box 2455, Riyadh 11451, Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science & Technology, KAUST Catalysis Center (KCC), 23955-6900 Thuwal, Saudi Arabia
| | - Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, c/ Mª Aurèlia Capmany 69, 17003 Girona, Catalonia, Spain
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7
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Lecourt C, Dhambri S, Allievi L, Sanogo Y, Zeghbib N, Ben Othman R, Lannou MI, Sorin G, Ardisson J. Natural products and ring-closing metathesis: synthesis of sterically congested olefins. Nat Prod Rep 2018; 35:105-124. [DOI: 10.1039/c7np00048k] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
This review highlights RCM reactions towards the synthesis of sterically congested natural products throughout the recent evolution of catalysts.
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Affiliation(s)
- C. Lecourt
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - S. Dhambri
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - L. Allievi
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - Y. Sanogo
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - N. Zeghbib
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - R. Ben Othman
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - M.-I. Lannou
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - G. Sorin
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
| | - J. Ardisson
- Paris Descartes University
- Sorbonne Paris Cité
- Faculté des Sciences Pharmaceutiques et Biologiques
- Unité CNRS UMR 8638 COMÈTE
- 75270 Paris Cedex 06
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8
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Bruneau C, Fischmeister C. Alkene Metathesis for Transformations of Renewables. TOP ORGANOMETAL CHEM 2018. [DOI: 10.1007/3418_2018_18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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9
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Ambrosio C, Paradiso V, Costabile C, Bertolasi V, Caruso T, Grisi F. Stable ruthenium olefin metathesis catalysts bearing symmetrical NHC ligands with primary and secondary N-alkyl groups. Dalton Trans 2018; 47:6615-6627. [DOI: 10.1039/c8dt00619a] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel ruthenium complexes with N,N′-dialkyl-substituted NHCs and their application in metathesis reactions involving model and biorenewable compounds are presented.
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Affiliation(s)
- Chiara Ambrosio
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Veronica Paradiso
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Chiara Costabile
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Valerio Bertolasi
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica
- Università di Ferrara
- I-44100 Ferrara
- Italy
| | - Tonino Caruso
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Fabia Grisi
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
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10
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Bruneau C, Fischmeister C, Mandelli D, Carvalho WA, dos Santos EN, Dixneuf PH, Sarmento Fernandes L. Transformations of terpenes and terpenoids via carbon–carbon double bond metathesis. Catal Sci Technol 2018. [DOI: 10.1039/c8cy01152d] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The review reports on transformations of unsaturated terpenes and terpenoids via olefin metathesis processes including ring closing metathesis of dienes, cross metathesis with functional olefins and ethenolysis, and ring opening metathesis as well as ring opening/cross metathesis.
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Affiliation(s)
- Christian Bruneau
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR6226
- 35000 Rennes
- France
| | - Cédric Fischmeister
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR6226
- 35000 Rennes
- France
| | - Dalmo Mandelli
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - Wagner A. Carvalho
- Centro de Ciências Naturais e Humanas
- Universidade Federal do ABC
- Santo André
- Brazil
| | - Eduardo N. dos Santos
- Departamento de Química – ICEx
- Universidade Federal de Minas Gerais
- Belo Horizonte
- Brazil
| | - Pierre H. Dixneuf
- Univ Rennes
- CNRS
- ISCR (Institut des Sciences Chimiques de Rennes) - UMR6226
- 35000 Rennes
- France
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11
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Ivry E, Frenklah A, Ginzburg Y, Levin E, Goldberg I, Kozuch S, Lemcoff NG, Tzur E. Light- and Thermal-Activated Olefin Metathesis of Hindered Substrates. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00677] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Elisa Ivry
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Alexander Frenklah
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Yakov Ginzburg
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Efrat Levin
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Israel Goldberg
- School
of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Sebastian Kozuch
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - N. Gabriel Lemcoff
- Department
of Chemistry, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
- Ilse Katz Institute for Nanotechnology, Beer Sheva 8410501, Israel
| | - Eyal Tzur
- Department
of Chemical Engineering, Shamoon College of Engineering, Ashdod 77245 Israel
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12
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In Silico Switch from Second- to First-Row Transition Metals in Olefin Metathesis: From Ru to Fe and from Rh to Co. Catalysts 2017. [DOI: 10.3390/catal7120389] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
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13
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Bergmann M, Savka R, Foro S, Plenio H. Synthesis of an
ortho
‐Methyl‐
N
,
N′
‐bis(triptycenyl) N‐Heterocyclic Carbene Ligand and Its Metal Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700793] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Marvin Bergmann
- Organometallic Chemistry TU Darmstadt Alarich‐Weiss‐Str. 12 64287 Darmstadt Germany
| | - Roman Savka
- Organometallic Chemistry TU Darmstadt Alarich‐Weiss‐Str. 12 64287 Darmstadt Germany
| | - Sabine Foro
- Department of Materials Science TU Darmstadt Alarich‐Weiss‐Str. 2 64287 Darmstadt Germany
| | - Herbert Plenio
- Organometallic Chemistry TU Darmstadt Alarich‐Weiss‐Str. 12 64287 Darmstadt Germany
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14
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Synthesis of metathesis catalysts with fluorinated unsymmetrical N , N ’-diaryl imidazoline-based NHC ligands. J Fluor Chem 2017. [DOI: 10.1016/j.jfluchem.2017.06.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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15
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Affiliation(s)
- Deryn E. Fogg
- Department of Chemistry and Biomolecular Sciences, and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
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16
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César V, Zhang Y, Kośnik W, Zieliński A, Rajkiewicz AA, Ruamps M, Bastin S, Lugan N, Lavigne G, Grela K. Ruthenium Catalysts Supported by Amino-Substituted N-Heterocyclic Carbene Ligands for Olefin Metathesis of Challenging Substrates. Chemistry 2017; 23:1950-1955. [PMID: 27914097 DOI: 10.1002/chem.201604934] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2016] [Indexed: 11/06/2022]
Abstract
N-Heterocyclic carbene (NHC) ligands IMesNMe2 and IMes(NMe2)2 derived from the well-known IMes ligand by substituting the carbenic heterocycle with one and two dimethylamino groups, respectively, were employed for the synthesis of second-generation Grubbs- and Grubbs-Hoveyda-type ruthenium metathesis precatalysts. Whereas the stability of the complexes was found to depend on the degree of dimethylamino-substitution and on the type of complex, the backbone-substitution was shown to have a positive impact on their catalytic activity in ring-closing metathesis, with a more pronounced effect in the second-generation Grubbs-type series. The new complexes were successfully implemented in a number of challenging olefin metathesis reactions leading to the formation of tetra-substituted C=C double bonds and/or functionalized compounds.
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Affiliation(s)
- Vincent César
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Yin Zhang
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Wioletta Kośnik
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Adam Zieliński
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Adam A Rajkiewicz
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
| | - Mirko Ruamps
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Stéphanie Bastin
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Noël Lugan
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Guy Lavigne
- LCC-CNRS, Université de Toulouse, INPT, UPS, Toulouse, France), Fax: (+)33 (0) 5 61 55 30 03
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Zwirki i Wigury 101, 02-089, Warsaw, Poland
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17
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Dangalov M, Petrov P, Vassilev NG. Fluxional allyl Pd(II) and Pt(II) complexes of NHC ligands derived from substituted 1,8-naphthalimides - Synthesis and structure elucidation. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.10.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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18
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Savka R, Bergmann M, Kanai Y, Foro S, Plenio H. Triptycene-Based Chiral andmeso-N-Heterocyclic Carbene Ligands and Metal Complexes. Chemistry 2016; 22:9667-75. [DOI: 10.1002/chem.201601474] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Roman Savka
- Organometallic Chemistry; TU Darmstadt; Alarich-Weiss-Strasse 12 64287 Darmstadt Germany
| | - Marvin Bergmann
- Organometallic Chemistry; TU Darmstadt; Alarich-Weiss-Strasse 12 64287 Darmstadt Germany
| | - Yuki Kanai
- Organometallic Chemistry; TU Darmstadt; Alarich-Weiss-Strasse 12 64287 Darmstadt Germany
| | - Sabine Foro
- Department of Materials Science; TU Darmstadt; Alarich-Weiss-Strasse 2 64287 Darmstadt Germany
| | - Herbert Plenio
- Organometallic Chemistry; TU Darmstadt; Alarich-Weiss-Strasse 12 64287 Darmstadt Germany
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19
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2014. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.09.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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20
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Alexander KA, Paulhus EA, Lazarus GM, Leadbeater NE. Exploring the reactivity of a ruthenium complex in the metathesis of biorenewable feedstocks to generate value-added chemicals. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2015.09.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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21
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Poater A. Moving from Classical Ru-NHC to Neutral or Charged Rh-NHC Based Catalysts in Olefin Metathesis. Molecules 2016; 21:177. [PMID: 26840290 PMCID: PMC6273139 DOI: 10.3390/molecules21020177] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2015] [Revised: 01/13/2016] [Accepted: 01/28/2016] [Indexed: 11/26/2022] Open
Abstract
Considering the versatility of oxidation states of rhodium together with the successful background of ruthenium-N-heterocyclic carbene based catalysts in olefin metathesis, it is envisaged the exchange of the ruthenium of the latter catalysts by rhodium, bearing an open-shell neutral rhodium center, or a +1 charged one. In the framework of in silico experiments, density functional theory (DFT) calculations have been used to plot the first catalytic cycle that as a first step includes the release of the phosphine. DFT is, in this case, the tool that allows the discovery of the less endergonic reaction profile from the precatalytic species for the neutral catalyst with respect to the corresponding ruthenium one; increasing the endergonic character when dealing with the charged system.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Catalonia, Spain.
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22
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Paradiso V, Costabile C, Grisi F. NHC Backbone Configuration in Ruthenium-Catalyzed Olefin Metathesis. Molecules 2016; 21:E117. [PMID: 26805793 PMCID: PMC6274038 DOI: 10.3390/molecules21010117] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Revised: 01/09/2016] [Accepted: 01/11/2016] [Indexed: 12/02/2022] Open
Abstract
The catalytic properties of olefin metathesis ruthenium complexes bearing N-heterocyclic carbene ligands with stereogenic centers on the backbone are described. Differences in catalytic behavior depending on the backbone configurations of symmetrical and unsymmetrical NHCs are discussed. In addition, an overview on asymmetric olefin metathesis promoted by chiral catalysts bearing C₂-symmetric and C₁-symmetric NHCs is provided.
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Affiliation(s)
- Veronica Paradiso
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università di Salerno, Via Giovanni Paolo II 132, Fisciano I-84084, Salerno, Italy.
| | - Chiara Costabile
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università di Salerno, Via Giovanni Paolo II 132, Fisciano I-84084, Salerno, Italy.
| | - Fabia Grisi
- Dipartimento di Chimica e Biologia "Adolfo Zambelli", Università di Salerno, Via Giovanni Paolo II 132, Fisciano I-84084, Salerno, Italy.
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23
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Perfetto A, Bertolasi V, Costabile C, Paradiso V, Caruso T, Longo P, Grisi F. Methyl and phenyl substituent effects on the catalytic behavior of NHC ruthenium complexes. RSC Adv 2016. [DOI: 10.1039/c6ra20608e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
NHCs with different combinations of methyl and phenyl substituents produce ruthenium second generation catalysts with different RCM behavior.
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Affiliation(s)
- Alessandra Perfetto
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Valerio Bertolasi
- Dipartimento di Scienze Chimiche e Farmaceutiche and Centro di Strutturistica Diffrattometrica
- Università di Ferrara
- I-44121 Ferrara
- Italy
| | - Chiara Costabile
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Veronica Paradiso
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Tonino Caruso
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Pasquale Longo
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Fabia Grisi
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
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24
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Paradiso V, Bertolasi V, Costabile C, Grisi F. Ruthenium olefin metathesis catalysts featuring unsymmetrical N-heterocyclic carbenes. Dalton Trans 2016; 45:561-71. [DOI: 10.1039/c5dt03758a] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
New second generation ruthenium catalysts bearing unsymmetrical NHCs show different catalytic efficiencies depending on the size of the N-alkyl group (methyl or cyclohexyl) and on the backbone configuration.
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Affiliation(s)
- Veronica Paradiso
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Valerio Bertolasi
- Dipartimento di Chimica and Centro di Strutturistica Diffrattometrica
- Università di Ferrara
- I-44100 Ferrara
- Italy
| | - Chiara Costabile
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Fabia Grisi
- Dipartimento di Chimica e Biologia “Adolfo Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
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25
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Caramori GF, Ortolan AO, Parreira RL, da Silva EH. Ruthenium nitrosyl complexes containing pyridine-functionalized carbenes – A theoretical insight. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.08.018] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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26
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Pump E, Leitgeb A, Kozłowska A, Torvisco A, Falivene L, Cavallo L, Grela K, Slugovc C. Variation of the Sterical Properties of the N-Heterocyclic Carbene Coligand in Thermally Triggerable Ruthenium-Based Olefin Metathesis Precatalysts/Initiators. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00715] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | - Anna Kozłowska
- Biological
and Chemical Research Center, Department of Chemistry, University of Warsaw, Źwirki i Wigury 101, 02-089 Warszawa, Poland
| | | | - Laura Falivene
- Kaust
Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- Kaust
Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
| | - Karol Grela
- Biological
and Chemical Research Center, Department of Chemistry, University of Warsaw, Źwirki i Wigury 101, 02-089 Warszawa, Poland
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27
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Poater A, Cavallo L. A comprehensive study of olefin metathesis catalyzed by Ru-based catalysts. Beilstein J Org Chem 2015; 11:1767-80. [PMID: 26664596 PMCID: PMC4660983 DOI: 10.3762/bjoc.11.192] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 09/04/2015] [Indexed: 01/02/2023] Open
Abstract
During a Ru-catalyzed reaction of an olefin with an alkylidene moiety that leads to a metallacycle intermediate, the cis insertion of the olefin can occur from two different directions, namely side and bottom with respect to the phosphine or N-heterocyclic ligand (NHC), depending on the first or second generation Grubbs catalyst. Here, DFT calculations unravel to which extent the bottom coordination of olefins with respect is favored over the side coordination through screening a wide range of catalysts, including first and second generation Grubbs catalysts as well as the subsequent Hoveyda derivatives. The equilibrium between bottom and side coordination is influenced by sterics, electronics, and polarity of the solvent. The side attack is favored for sterically less demanding NHC and/or alkylidene ligands. Moreover the generation of a 14-electron species is also discussed, with either pyridine or phosphine ligands to dissociate.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Catalonia, Spain
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi Arabia
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28
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Stereolability of Chiral Ruthenium Catalysts With Frozen NHC Ligand Conformations Investigated by Dynamic-HPLC. Chirality 2015; 27:685-92. [DOI: 10.1002/chir.22487] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2015] [Revised: 06/24/2015] [Accepted: 07/06/2015] [Indexed: 11/07/2022]
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29
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Borguet Y, Zaragoza G, Demonceau A, Delaude L. Ruthenium catalysts bearing a benzimidazolylidene ligand for the metathetical ring-closure of tetrasubstituted cycloolefins. Dalton Trans 2015; 44:9744-55. [PMID: 25734488 DOI: 10.1039/c5dt00433k] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Deprotonation of 1,3-di(2-tolyl)benzimidazolium tetrafluoroborate with a strong base afforded 1,3-di(2-tolyl)benzimidazol-2-ylidene (BTol), which dimerized progressively into the corresponding dibenzotetraazafulvalene. The complexes [RhCl(COD)(BTol)] (COD is 1,5-cyclooctadiene) and cis-[RhCl(CO)2(BTol)] were synthesized to probe the steric and electronic parameters of BTol. Comparison of the percentage of buried volume (%VBur) and of the Tolman electronic parameter (TEP) of BTol with those determined previously for 1,3-dimesitylbenzimidazol-2-ylidene (BMes) revealed that the two N-heterocyclic carbenes displayed similar electron donicities, yet the 2-tolyl substituents took a slightly greater share of the rhodium coordination sphere than the mesityl groups, due to a more pronounced tilt. The anti,anti conformation adopted by BTol in the molecular structure of [RhCl(COD)(BTol)] ensured nonetheless a remarkably unhindered access to the metal center, as evidenced by steric maps. Second-generation ruthenium-benzylidene and isopropoxybenzylidene complexes featuring the BTol ligand were obtained via phosphine exchange from the first generation Grubbs and Hoveyda-Grubbs catalysts, respectively. The atropisomerism of the 2-tolyl substituents within [RuCl2(=CHPh)(PCy3)(BTol)] was investigated by using variable temperature NMR spectroscopy, and the molecular structures of all four possible rotamers of [RuCl2(=CH-o-O(i)PrC6H4)(BTol)] were determined by X-ray crystallography. Both complexes were highly active at promoting the ring-closing metathesis (RCM) of model α,ω-dienes. The replacement of BMes with BTol was particularly beneficial to achieve the ring-closure of tetrasubstituted cycloalkenes. More specifically, the stable isopropoxybenzylidene chelate enabled an almost quantitative RCM of two challenging substrates, viz., diethyl 2,2-bis(2-methylallyl)malonate and N,N-bis(2-methylallyl)tosylamide, within a few hours at 60 °C.
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Affiliation(s)
- Yannick Borguet
- Laboratory of Organometallic Chemistry and Homogeneous Catalysis, Institut de Chimie (B6a), Université de Liège, Sart-Tilman par 4000, Liège, Belgium.
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30
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Zhu X, Du H. A Highly Stereoselective Metal-Free Hydrogenation of Diimines for the Synthesis of Cis-Vicinal Diamines. Org Lett 2015; 17:3106-9. [DOI: 10.1021/acs.orglett.5b01380] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Xiaxia Zhu
- Beijing National Laboratory for
Molecular Sciences, CAS Key Laboratory of Molecular Recognition and
Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Haifeng Du
- Beijing National Laboratory for
Molecular Sciences, CAS Key Laboratory of Molecular Recognition and
Function, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
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31
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Masoud SM, Mailyan AK, Dorcet V, Roisnel T, Dixneuf PH, Bruneau C, Osipov SN. Metathesis Catalysts with Fluorinated Unsymmetrical NHC Ligands. Organometallics 2015. [DOI: 10.1021/om501077w] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Salekh M. Masoud
- A.N.
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov str. 28, 119991, Moscow, Russia
- UMR 6226 CNRS-Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organométalliques:
Matériaux et Catalyse, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 35042 Rennes, France
| | - Artur K. Mailyan
- A.N.
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov str. 28, 119991, Moscow, Russia
- Department
of Chemistry and Biochemistry, University of California, Santa Barbara, California 93106-9510, United States
| | - Vincent Dorcet
- UMR 6226 CNRS-Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Centre de Diffractométrie
X, Campus de Beaulieu, 35042 Rennes, France
| | - Thierry Roisnel
- UMR 6226 CNRS-Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Centre de Diffractométrie
X, Campus de Beaulieu, 35042 Rennes, France
| | - Pierre H. Dixneuf
- UMR 6226 CNRS-Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organométalliques:
Matériaux et Catalyse, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 35042 Rennes, France
| | - Christian Bruneau
- UMR 6226 CNRS-Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organométalliques:
Matériaux et Catalyse, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 35042 Rennes, France
| | - Sergey N. Osipov
- A.N.
Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov str. 28, 119991, Moscow, Russia
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32
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Fonseca LR, Nascimento ESP, Silva Sá JL, Lima-Neto BS. The ring size of cyclic amines as a relevant feature in the activity of Ru-based complexes for ROMP. NEW J CHEM 2015. [DOI: 10.1039/c5nj00321k] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The ring size of cyclic amines influences the yield, Mw and PDI values of polynorbonene obtained via ROMP using [RuCl2(PPh3)2(amine)x] as the starting complex.
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Affiliation(s)
- Larissa R. Fonseca
- Instituto de Química de São Carlos
- Universidade de São Paulo
- São Carlos
- Brazil
| | | | - José L. Silva Sá
- Centro de Ciências da Natureza
- Universidade Estadual do Piauí
- Teresina
- Brazil
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