1
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Tomasini M, Gimferrer M, Caporaso L, Poater A. Rhenium Alkyne Catalysis: Sterics Control the Reactivity. Inorg Chem 2024; 63:5842-5851. [PMID: 38507560 PMCID: PMC10988556 DOI: 10.1021/acs.inorgchem.3c04235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2023] [Revised: 02/27/2024] [Accepted: 03/05/2024] [Indexed: 03/22/2024]
Abstract
Metathesis reactions, including alkane, alkene, and alkyne metatheses, have their origins in the fundamental understanding of chemical reactions and the development of specialized catalysts. These reactions stand as transformative pillars in organic chemistry, providing efficient rearrangement of carbon-carbon bonds and enabling synthetic access to diverse and complex compounds. Their impact spans industries such as petrochemicals, pharmaceuticals, and materials science. In this work, we present a detailed mechanistic study of the Re(V) catalyzed alkyne metathesis through density functional theory calculations. Our findings are in agreement with the experimental evidence from Jia and co-workers and unveil critical factors governing catalyst performance. Our work not only enhances our understanding of alkyne metathesis but also contributes to the broader landscape of catalytic processes, facilitating the design of more efficient and selective transformations in organic synthesis.
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Affiliation(s)
- Michele Tomasini
- Institut
de Química Computacional i Catàlisi, Departament de
Química, Universitat de Girona, c/Ma Aurèlia Capmany 69, Girona 17003, Catalonia, Spain
- Dipartimento
di Chimica e Biologia, Università
di Salerno, Via Ponte
don Melillo, Fisciano 84084, Italy
| | - Martí Gimferrer
- Institut
für Physikalische Chemie, Georg-August
Universität Göttingen, Tammannstraße 6, Göttingen 37077, Germany
| | - Lucia Caporaso
- Dipartimento
di Chimica e Biologia, Università
di Salerno, Via Ponte
don Melillo, Fisciano 84084, Italy
- CIRCC, Interuniversity Consortium Chemical Reactivity and Catalysis, via Celso Ulpiani 27, Bari 70126, Italy
| | - Albert Poater
- Institut
de Química Computacional i Catàlisi, Departament de
Química, Universitat de Girona, c/Ma Aurèlia Capmany 69, Girona 17003, Catalonia, Spain
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2
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Escayola S, Brotons-Rufes A, Bahri-Laleh N, Ragone F, Cavallo L, Solà M, Poater A. Fluxional bis(phenoxy-imine) Zr and Ti catalysts for polymerization. Theor Chem Acc 2021. [DOI: 10.1007/s00214-021-02747-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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3
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Tobón P, Gómez S, Restrepo A, Núñez-Zarur F. Role of Substrate Substituents in Alkene Metathesis Mediated by a Ru Alkylidene Catalyst. Organometallics 2021. [DOI: 10.1021/acs.organomet.0c00482] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Paola Tobón
- Instituto de Química, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 50010, Colombia
| | - Sara Gómez
- Scuola Normale Superiore, Classe di Scienze, Piazza dei Cavalieri 7, 56126 Pisa, Italy
| | - Albeiro Restrepo
- Instituto de Química, Universidad de Antioquia UdeA, Calle 70 No. 52-21, Medellín 50010, Colombia
| | - Francisco Núñez-Zarur
- Facultad de Ciencias Básicas, Universidad de Medellín, Carrera 87 No. 30-65, 050026 Medellín, Colombia
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4
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Nicholls TP, Williams JR, Willans CE. Reactivities of N-heterocyclic carbenes at metal centers. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2021. [DOI: 10.1016/bs.adomc.2021.01.006] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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5
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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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6
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Jawiczuk M, Marczyk A, Młodzikowska-Pieńko K, Trzaskowski B. Impact of the Carbene Derivative Charge on the Decomposition Rates of Hoveyda-Grubbs-like Metathesis Catalysts. J Phys Chem A 2020; 124:6158-6167. [PMID: 32639748 PMCID: PMC7460089 DOI: 10.1021/acs.jpca.0c03096] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
![]()
Hoveyda–Grubbs
metathesis catalysts undergo a relatively
fast decomposition in the presence of olefins. Using a computational
density functional theory approach, we show that positively charged
derivatives of N-heterocyclic carbenes have little impact on the degradation/deactivation
rates of such catalysts with respect to neutral carbenes. On the other
hand, the hypothetical anionic Hoveyda–Grubbs-like catalysts
are predicted to less likely undergo degradation in the presence of
the olefin, while being as active as standard, neutral Hoveyda–Grubbs
catalysts.
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Affiliation(s)
- Magdalena Jawiczuk
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warszawa, Poland
| | - Anna Marczyk
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warszawa, Poland.,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warszawa, Poland
| | - Katarzyna Młodzikowska-Pieńko
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warszawa, Poland.,Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warszawa, Poland
| | - Bartosz Trzaskowski
- Centre of New Technologies, University of Warsaw, Banacha 2c, 02-097 Warszawa, Poland
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7
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Jawiczuk M, Młodzikowska-Pieńko K, Trzaskowski B. Impact of the olefin structure on the catalytic cycle and decomposition rates of Hoveyda-Grubbs metathesis catalysts. Phys Chem Chem Phys 2020; 22:13062-13069. [PMID: 32478784 DOI: 10.1039/d0cp01798a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A relatively fast degradation of ruthenium catalysts in the presence of selected olefins, and ethylene in particular, is one of the bottlenecks in their use in metathesis reactions. Here we explore the structure-activity relationships between the rate of degradation of Hoveyda-Grubbs catalysts and the structure of olefins by means of DFT calculations. We show that (Z)-1,2-dichloroethene can't form stable complexes with a 14-electron active complex due to a strong inductive electron withdrawal effect. Hoveyda-Grubbs catalysts can be, however, used to convert (Z)-1,2-dichloroethene to (E)-1,2-dichloroethene due to differences in crucial barriers in the catalytic cycle for E/Z isomers. Hoveyda-Grubbs catalysts in the presence of both isomers of 1,2-dimethoxyethene and 1,2-dichloroethene are predicted to be very stable in the unproductive metathesis, while for monosubstituted olefins the methoxyethene presence gives relatively low barriers for crucial degradation transition states and can readily undergo decomposition.
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Affiliation(s)
- Magdalena Jawiczuk
- Centre of New Technologies, University of Warsaw, Banacha 2C, 02-097 Warszawa, Poland.
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8
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Smit W, Foscato M, Occhipinti G, Jensen VR. Ethylene-Triggered Formation of Ruthenium Alkylidene from Decomposed Catalyst. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02206] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Wietse Smit
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - 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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9
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Jawiczuk M, Młodzikowska-Pieńko K, Osella S, Trzaskowski B. Molecular Modeling of Mechanisms of Decomposition of Ruthenium Metathesis Catalysts by Acrylonitrile. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00372] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Magdalena Jawiczuk
- Centre of New Technologies, University of Warsaw, 02-097 Warszawa, Poland
| | - Katarzyna Młodzikowska-Pieńko
- Centre of New Technologies, University of Warsaw, 02-097 Warszawa, Poland
- Faculty of Chemistry, University of Warsaw, 02-093 Warszawa, Poland
| | - Silvio Osella
- Centre of New Technologies, University of Warsaw, 02-097 Warszawa, Poland
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10
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Wilson BJ, Brantley JN. Synthesis and Reactivity of Metallocarbene-Containing Polymers. J Am Chem Soc 2019; 141:12453-12457. [PMID: 31348854 DOI: 10.1021/jacs.9b04077] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Metallopolymers are an emerging class of materials with potential utility as semiconductors, catalysts, optical device components, and stimuli responsive networks. While polymer frameworks have been decorated with an array of organometallic moieties, the incorporation of metallocarbenes has been largely overlooked. Here, we report ring-opening metathesis polymerization as a strategy for the synthesis of Fischer carbene-containing polymers. High degrees of polymerization were observed (>800 repeats), and the isolated materials exhibited exceptional solubility and thermal stability. The tungsten carbene subunits were readily incorporated into block copolymers and could be modified through subsequent transformations. Moreover, the metallocarbene polymers were found to release carbon monoxide upon exposure to light or oxygen, which is unusual for tungsten carbene complexes. These metallocarbene-containing polymers could represent new platforms for the development of functional materials.
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Affiliation(s)
- Breana J Wilson
- Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States
| | - Johnathan N Brantley
- Department of Chemistry , University of Tennessee , Knoxville , Tennessee 37996 , United States
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11
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Bidal YD, Urbina-Blanco CA, Poater A, Cordes DB, Slawin AMZ, Cavallo L, Cazin CSJ. Electronic effects in mixed N-heterocyclic carbene/phosphite indenylidene ruthenium metathesis catalysts. Dalton Trans 2019; 48:11326-11337. [PMID: 31273362 DOI: 10.1039/c9dt01811e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Five new complexes [RuCl2(SIMes)(Ind)(O-pXC5H4)] bearing different para-substituted triphenylphosphites (X = H, OCH3, CF3, Cl, SF5 and CN) were synthesised and used to study the effect of the electronic properties of the phosphite on olefin metathesis activity. Investigations of the physical properties of the new ligands and complexes were performed using physicochemical and DFT calculations. The catalytic activity of the complexes was benchmarked in challenging ring closing metathesis transformations featuring the formation of tetra-substituted double bonds. Complex [RuCl2(SIMes)(Ind)P(O-pCF3C5H4)3] (3c) exhibited a particularly high catalytic activity, superior to state-of-the-art catalysts, and was further tested on a wide range of substrates.
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Affiliation(s)
- Yannick D Bidal
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - César A Urbina-Blanco
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK and Laboratory for Chemical Technology, Ghent University, Technologiepark 125, B-9052 Gent, Belgium
| | - Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, University of Girona, Girona 17003, Catalonia, Spain
| | - David B Cordes
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Alexandra M Z Slawin
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK
| | - Luigi Cavallo
- KAUST Catalysis Center, Physical Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal, 23955-6900, Saudi Arabia
| | - Catherine S J Cazin
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, UK and Centre for Sustainable Chemistry, Department of Chemistry, Ghent University, Krijgslaan 281 - S3, 9000 Gent, Belgium.
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12
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Jiang Y, Zhang SQ, Cao F, Zou JX, Yu JL, Shi BF, Hong X, Wang Z. Unexpected Stability of CO-Coordinated Palladacycle in Bidentate Auxiliary Directed C(sp3)–H Bond Activation: A Combined Experimental and Computational Study. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00087] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Yi Jiang
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Shuo-Qing Zhang
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Fei Cao
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Jiao-Xia Zou
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China
| | - Jing-Lu Yu
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Bing-Feng Shi
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Xin Hong
- Department of Chemistry, Zhejiang University, Hangzhou 310027, China
| | - Zhen Wang
- School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, China
- State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, Gansu 730000, China
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13
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Bailey GA, Foscato M, Higman CS, Day CS, Jensen VR, Fogg DE. Bimolecular Coupling as a Vector for Decomposition of Fast-Initiating Olefin Metathesis Catalysts. J Am Chem Soc 2018; 140:6931-6944. [PMID: 29652496 DOI: 10.1021/jacs.8b02709] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The correlation between rapid initiation and rapid decomposition in olefin metathesis is probed for a series of fast-initiating, phosphine-free Ru catalysts: the Hoveyda catalyst HII, RuCl2(L)(═CHC6H4- o-O iPr); the Grela catalyst nG (a derivative of HII with a nitro group para to O iPr); the Piers catalyst PII, [RuCl2(L)(═CHPCy3)]OTf; the third-generation Grubbs catalyst GIII, RuCl2(L)(py)2(═CHPh); and dianiline catalyst DA, RuCl2(L)( o-dianiline)(═CHPh), in all of which L = H2IMes = N,N'-bis(mesityl)imidazolin-2-ylidene. Prior studies of ethylene metathesis have established that various Ru metathesis catalysts can decompose by β-elimination of propene from the metallacyclobutane intermediate RuCl2(H2IMes)(κ2-C3H6), Ru-2. The present work demonstrates that in metathesis of terminal olefins, β-elimination yields only ca. 25-40% propenes for HII, nG, PII, or DA, and none for GIII. The discrepancy is attributed to competing decomposition via bimolecular coupling of methylidene intermediate RuCl2(H2IMes)(═CH2), Ru-1. Direct evidence for methylidene coupling is presented, via the controlled decomposition of transiently stabilized adducts of Ru-1, RuCl2(H2IMes)Ln(═CH2) (Ln = py n'; n' = 1, 2, or o-dianiline). These adducts were synthesized by treating in situ-generated metallacyclobutane Ru-2 with pyridine or o-dianiline, and were isolated by precipitating at low temperature (-116 or -78 °C, respectively). On warming, both undergo methylidene coupling, liberating ethylene and forming RuCl2(H2IMes)Ln. A mechanism is proposed based on kinetic studies and molecular-level computational analysis. Bimolecular coupling emerges as an important contributor to the instability of Ru-1, and a potentially major pathway for decomposition of fast-initiating, phosphine-free metathesis catalysts.
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Affiliation(s)
- Gwendolyn A Bailey
- Center for Catalysis Research and Innovation, and Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , ON , Canada K1N 6N5
| | - Marco Foscato
- Department of Chemistry , University of Bergen , Allégaten 41 , N-5007 Bergen , Norway
| | - Carolyn S Higman
- Center for Catalysis Research and Innovation, and Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , ON , Canada K1N 6N5
| | - Craig S Day
- Center for Catalysis Research and Innovation, and Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , ON , Canada K1N 6N5
| | - Vidar R Jensen
- Department of Chemistry , University of Bergen , Allégaten 41 , N-5007 Bergen , Norway
| | - Deryn E Fogg
- Center for Catalysis Research and Innovation, and Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , ON , Canada K1N 6N5
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14
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Higman CS, Rufh SA, McDonald R, Fogg DE. Synthesis and dynamic behaviour of a dimeric ruthenium benzylidene complex bearing a truncated N-heterocyclic carbene ligand. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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15
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Griffiths JR, Hofman EJ, Keister JB, Diver ST. Kinetics and Mechanism of Isocyanide-Promoted Carbene Insertion into the Aryl Substituent of an N-Heterocyclic Carbene Ligand in Ruthenium-Based Metathesis Catalysts. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00342] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Justin R. Griffiths
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
| | - Elan J. Hofman
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
| | - Jerome B. Keister
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
| | - Steven T. Diver
- Department of Chemistry, University at Buffalo, the State University of New York, Buffalo, New York 14260-3000, United States
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16
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Poater A. Versatile deprotonated NHC: C,N-bridged dinuclear iridium and rhodium complexes. Beilstein J Org Chem 2016; 12:117-24. [PMID: 26877814 PMCID: PMC4734348 DOI: 10.3762/bjoc.12.13] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2015] [Accepted: 01/08/2016] [Indexed: 11/30/2022] Open
Abstract
Bearing the versatility of N-heterocyclic carbene (NHC) ligands, here density functional theory (DFT) calculations unravel the capacity of coordination of a deprotonated NHC ligand (pNHC) to generate a doubly C2,N3-bridged dinuclear complex. Here, in particular the discussion is based on the combination of the deprotonated 1-arylimidazol (aryl = mesityl (Mes)) with [M(cod)(μ-Cl)] (M = Ir, Rh) generated two geometrical isomers of complex [M(cod){µ-C3H2N2(Mes)-κC2,κN3}]2). The latter two isomers display conformations head-to-head (H-H) and head-to-tail (H-T) of CS and C2 symmetry, respectively. The isomerization from the H-H to the H-T conformation is feasible, whereas next substitutions of the cod ligand by CO first, and PMe3 later confirm the H-T coordination as the thermodynamically preferred. It is envisaged the exchange of the metal, from iridium to rhodium, confirming here the innocence of the nature of the metal for such arrangements of the bridging ligands.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi, Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
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17
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Nelson DJ, Manzini S, Urbina-Blanco CA, Nolan SP. Key processes in ruthenium-catalysed olefin metathesis. Chem Commun (Camb) 2015; 50:10355-75. [PMID: 24931143 DOI: 10.1039/c4cc02515f] [Citation(s) in RCA: 123] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
While the fundamental series of [2+2]cycloadditions and retro[2+2]cycloadditions that make up the pathways of ruthenium-catalysed metathesis reactions is well-established, the exploration of mechanistic aspects of alkene metathesis continues. In this Feature Article, modern mechanistic studies of the alkene metathesis reaction, catalysed by well-defined ruthenium complexes, are discussed. Broadly, these concern the processes of pre-catalyst initiation, propagation and decomposition, which all have a considerable impact on the overall efficiency of metathesis reactions.
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Affiliation(s)
- David J Nelson
- EaStCHEM School of Chemistry, University of St Andrews, North Haugh, St Andrews, Fife, KY16 9ST, UK.
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18
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Marx FTI, Jordaan JHL, Lachmann G, Vosloo HCM. A comparison of low and high activity precatalysts: do the calculated energy barriers during the self-metathesis reaction of 1-octene correlate with the precatalyst metathesis activity? J Comput Chem 2014; 35:1464-71. [PMID: 24866263 DOI: 10.1002/jcc.23642] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 01/02/2023]
Abstract
The self-metathesis reaction of 1-octene with several well-known Grubbs-type precatalysts and the new Z-selective Grubbs precatalyst were studied with molecular modeling. The obtained Gibbs-free energy values for all the steps during the productive metathesis of 1-octene were compared to the values obtained for some low catalytic activity precatalysts. Determining how the Gibbs-free energy values of highly active precatalysts compare to that of low catalytic activity precatalysts gave a deeper insight into the mechanism. The questionable correlation of the theoretically observed trends with those obtained experimentally does point to the need to be very cautious when making assumptions from theoretical results without a sufficiently large dataset.
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Affiliation(s)
- Frans T I Marx
- Research Focus Area for Chemical Resource Beneficiation:, Catalysis and Synthesis Group, North-West University, Hoffmann Street, Potchefstroom, 2520, South Africa
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19
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Marx FTI, Jordaan JHL, Lachmann G, Vosloo HCM. A molecular modeling study of the changes of some steric properties of the precatalysts during the olefin metathesis reaction. J Comput Chem 2014; 35:1457-63. [PMID: 24866082 DOI: 10.1002/jcc.23641] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Revised: 05/05/2014] [Accepted: 05/07/2014] [Indexed: 12/29/2022]
Abstract
The productive self-metathesis of 1-octene with a series of new phosphine ligated Grubbs-type precatalysts was studied. The resulting structures were used to compare some steric properties of the new precatalysts with those of well-known precatalysts. The possibility of α-CC agnostic stabilization as well as the ability of the ligands to shield the metal was studied. A comparison of the obtained data, pointed to the unlikelihood that α-CC agostic stabilization is a major contribution to the stabilization of the various metallacyclobutane rings. The similarity in the ability of the ligands to shield the metal also raised questions about the comparison of experimentally observed trends with those obtained theoretically.
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Affiliation(s)
- Frans T I Marx
- Research Focus Area for Chemical Resource Beneficiation: Catalysis and Synthesis Group, North-West University, Hoffmann Street, Potchefstroom, 2520, South Africa
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20
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Poater A, Falivene L, Urbina-Blanco CA, Manzini S, Nolan SP, Cavallo L. How does the addition of steric hindrance to a typical N-heterocyclic carbene ligand affect catalytic activity in olefin metathesis? Dalton Trans 2014; 42:7433-9. [PMID: 23455458 DOI: 10.1039/c3dt32980a] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Density functional theory (DFT) calculations were used to predict and rationalize the effect of the modification of the structure of the prototype 1,3-bis(2,6-diisopropylphenyl)imidazol-2-ylidene) N-heterocyclic carbene (NHC) ligand. The modification consists in the substitution of the methyl groups of ortho isopropyl substituent with phenyl groups, and here we plan to describe how such significant changes affect the metal environment and therefore the related catalytic behaviour. Bearing in mind that there is a significant structural difference between both ligands in different olefin metathesis reactions, here by means of DFT we characterize where the NHC ligand plays a more active role and where it is a simple spectator, or at least its modification does not significantly change its catalytic role/performance.
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional, Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain.
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21
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Wang Y, McGonigal PR, Herlé B, Besora M, Echavarren AM. Gold(I) carbenes by retro-Buchner reaction: generation and fate. J Am Chem Soc 2014; 136:801-9. [PMID: 24358986 PMCID: PMC3898715 DOI: 10.1021/ja411626v] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2013] [Indexed: 01/01/2023]
Abstract
The fate of the aryl gold(I) carbenes generated by retro-Buchner reaction of ortho-substituted 7-aryl-1,3,5-cycloheptatrienes is dependent on the constitution of the ortho substituent. Indenes and fluorenes are obtained by intramolecular reaction of highly electrophilic gold(I) carbenes with alkenes and arenes. According to density functional theory calculations, the gold-catalyzed retro-Buchner process occurs stepwise, although the two carbon-carbon cleavages occur on a rather flat potential energy surface.
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Affiliation(s)
- Yahui Wang
- Institute
of Chemical Research of Catalonia (ICIQ), Av. Paísos Catalans 16, 43007 Tarragona, Spain
| | - Paul R. McGonigal
- Institute
of Chemical Research of Catalonia (ICIQ), Av. Paísos Catalans 16, 43007 Tarragona, Spain
| | - Bart Herlé
- Institute
of Chemical Research of Catalonia (ICIQ), Av. Paísos Catalans 16, 43007 Tarragona, Spain
| | - Maria Besora
- Institute
of Chemical Research of Catalonia (ICIQ), Av. Paísos Catalans 16, 43007 Tarragona, Spain
| | - Antonio M. Echavarren
- Institute
of Chemical Research of Catalonia (ICIQ), Av. Paísos Catalans 16, 43007 Tarragona, Spain
- Departament
de Química Analítica i Química Orgànica, Universitat Rovira i Virgili, C/Marcel·li Domingo s/n, 43007 Tarragona, Spain
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22
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Poater A, Chaitanya Vummaleti SV, Pump E, Cavallo L. Comparing Ru and Fe-catalyzed olefin metathesis. Dalton Trans 2014; 43:11216-20. [DOI: 10.1039/c4dt00325j] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
To replace Ru by Fe in olefin metathesis, a dream?
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi (IQCC)
- Departament de Química
- University of Girona
- E-17071 Girona, Spain
- Catalan Institute for Water Research (ICRA)
| | - Sai Vikrama Chaitanya Vummaleti
- KAUST Catalysis Center
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900, Saudi Arabia
| | - Eva Pump
- Institute for Chemistry and Technology of Materials
- Graz University of Technology
- A-8010 Graz, Austria
| | - Luigi Cavallo
- KAUST Catalysis Center
- Physical Sciences and Engineering Division
- King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900, Saudi Arabia
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23
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Núñez-Zarur F, Solans-Monfort X, Pleixats R, Rodríguez-Santiago L, Sodupe M. DFT Study on the Recovery of Hoveyda-Grubbs-Type Catalyst Precursors in Enyne and Diene Ring-Closing Metathesis. Chemistry 2013; 19:14553-65. [DOI: 10.1002/chem.201301898] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Indexed: 11/11/2022]
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24
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25
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Chen L, Mowat JPS, Fairen-Jimenez D, Morrison CA, Thompson SP, Wright PA, Düren T. Elucidating the Breathing of the Metal–Organic Framework MIL-53(Sc) with ab Initio Molecular Dynamics Simulations and in Situ X-ray Powder Diffraction Experiments. J Am Chem Soc 2013; 135:15763-73. [DOI: 10.1021/ja403453g] [Citation(s) in RCA: 154] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Linjiang Chen
- Institute for Materials and
Processes, School of Engineering, The University of Edinburgh, King’s Buildings, Edinburgh EH9 3JL, United Kingdom
| | - John P. S. Mowat
- EaStCHEM School of Chemistry, University of St. Andrews, Purdie Building, North Haugh,
St. Andrews, Fife KY16 9ST, United Kingdom
| | - David Fairen-Jimenez
- Department of Chemical Engineering
and Biotechnology, University of Cambridge, Pembroke Street, Cambridge CB2 3RA, United Kingdom
| | - Carole A. Morrison
- EaStCHEM Research School, The University of Edinburgh, King’s Buildings,
Edinburgh EH9 3JJ, United Kingdom
| | - Stephen P. Thompson
- Diamond Light Source Ltd., Harwell Science and Innovation Campus, Didcot,
Oxfordshire OX11 0DE, United Kingdom
| | - Paul A. Wright
- EaStCHEM School of Chemistry, University of St. Andrews, Purdie Building, North Haugh,
St. Andrews, Fife KY16 9ST, United Kingdom
| | - Tina Düren
- Institute for Materials and
Processes, School of Engineering, The University of Edinburgh, King’s Buildings, Edinburgh EH9 3JL, United Kingdom
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26
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Komine N, Flores JA, Pal K, Caulton KG, Mindiola DJ. Büchner Reactions Catalyzed by a Silver(I) Pyridylpyrrolide: Understanding Arene C═C Insertion Selectivity. Organometallics 2013. [DOI: 10.1021/om301240d] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nobuyuki Komine
- Department of Chemistry, Indiana University, Bloomington, Indiana
47405, United States
| | - Jaime A. Flores
- Department of Chemistry, Indiana University, Bloomington, Indiana
47405, United States
| | - Kuntal Pal
- Department of Chemistry, Indiana University, Bloomington, Indiana
47405, United States
| | - Kenneth G. Caulton
- Department of Chemistry, Indiana University, Bloomington, Indiana
47405, United States
| | - Daniel J. Mindiola
- Department of Chemistry, Indiana University, Bloomington, Indiana
47405, United States
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27
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Urbina-Blanco CA, Poater A, Lebl T, Manzini S, Slawin AMZ, Cavallo L, Nolan SP. The Activation Mechanism of Ru–Indenylidene Complexes in Olefin Metathesis. J Am Chem Soc 2013; 135:7073-9. [PMID: 23617632 DOI: 10.1021/ja402700p] [Citation(s) in RCA: 92] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- César A. Urbina-Blanco
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews,
Fife, KY16 9ST, United Kingdom
| | - Albert Poater
- Institut de Química Computacional
i Catàlisi, Departament de Química, University of Girona, Campus de Montilivi sn, 17071 Girona, Catalonia,
Spain
| | - Tomas Lebl
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews,
Fife, KY16 9ST, United Kingdom
| | - Simone Manzini
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews,
Fife, KY16 9ST, United Kingdom
| | - Alexandra M. Z. Slawin
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews,
Fife, KY16 9ST, United Kingdom
| | - Luigi Cavallo
- Department of Chemistry
and
Biology, University of Salerno, Via Ponte
don Melillo, Fisciano I-84084, Italy
- KAUST Catalyst Center, Physical
Sciences and Engineering Division, King Abdullah University of Science and Technology, Thuwal 23955-6900, Saudi
Arabia
| | - Steven P. Nolan
- EaStCHEM School of Chemistry, University of St. Andrews, North Haugh, St. Andrews,
Fife, KY16 9ST, United Kingdom
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28
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Żukowska K, Szadkowska A, Trzaskowski B, Pazio A, Pączek Ł, Woźniak K, Grela K. 3-Bromopyridine As a Sixth Ligand in Sulfoxide-Based Hoveyda Complexes: A Study on Catalytic Properties. Organometallics 2013. [DOI: 10.1021/om400064c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Karolina Żukowska
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224
Warsaw, Poland
| | - Anna Szadkowska
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
| | - Bartosz Trzaskowski
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
| | - Aleksandra Pazio
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
| | - Łukasz Pączek
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224
Warsaw, Poland
| | - Krzysztof Woźniak
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
| | - Karol Grela
- Faculty of
Chemistry, University of Warsaw, Pasteura
1, 02-093 Warsaw, Poland
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29
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Poater A, Solà M. Complete σ* intramolecular aromatic hydroxylation mechanism through O2 activation by a Schiff base macrocyclic dicopper(I) complex. Beilstein J Org Chem 2013; 9:585-93. [PMID: 23616799 PMCID: PMC3628990 DOI: 10.3762/bjoc.9.63] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 03/01/2013] [Indexed: 02/05/2023] Open
Abstract
In this work we analyze the whole molecular mechanism for intramolecular aromatic hydroxylation through O2 activation by a Schiff hexaazamacrocyclic dicopper(I) complex, [Cu(I) 2(bsH2m)](2+). Assisted by DFT calculations, we unravel the reaction pathway for the overall intramolecular aromatic hydroxylation, i.e., from the initial O2 reaction with the dicopper(I) species to first form a Cu(I)Cu(II)-superoxo species, the subsequent reaction with the second Cu(I) center to form a μ-η(2):η(2)-peroxo-Cu(II) 2 intermediate, the concerted peroxide O-O bond cleavage and C-O bond formation, followed finally by a proton transfer to an alpha aromatic carbon that immediately yields the product [Cu(II) 2(bsH2m-O)(μ-OH)](2+).
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Affiliation(s)
- Albert Poater
- Institut de Química Computacional i Catàlisi and Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain ; Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, E-17003 Girona, Spain
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30
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Poater A, Credendino R, Slugovc C, Cavallo L. Exploring new generations of ruthenium olefin metathesis catalysts: the reactivity of a bis-ylidene ruthenium complex by DFT. Dalton Trans 2013; 42:7271-5. [DOI: 10.1039/c3dt32884h] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Albert Poater
- Institut de Química Computacional, Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Catalonia, Spain.
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31
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Falivene L, Poater A, Cazin CSJ, Slugovc C, Cavallo L. Energetics of the ruthenium–halide bond in olefin metathesis (pre)catalysts. Dalton Trans 2013; 42:7312-7. [DOI: 10.1039/c2dt32277c] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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32
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Bantreil X, Poater A, Urbina-Blanco CA, Bidal YD, Falivene L, Randall RAM, Cavallo L, Slawin AMZ, Cazin CSJ. Synthesis and Reactivity of Ruthenium Phosphite Indenylidene Complexes. Organometallics 2012. [DOI: 10.1021/om300703p] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Xavier Bantreil
- EaStCHEM
School of Chemistry, University of St Andrews, St Andrews KY16 9ST, U.K
| | - Albert Poater
- Institut de Quı́mica
Computacional, Departament de Quı́mica, Universitat de Girona, Campus de Montilivi,
E-17071 Girona, Spain
| | | | - Yannick D. Bidal
- EaStCHEM
School of Chemistry, University of St Andrews, St Andrews KY16 9ST, U.K
| | - Laura Falivene
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Ponte don Melillo, I-84084 Fisciano
(SA), Italy
| | | | - Luigi Cavallo
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Ponte don Melillo, I-84084 Fisciano
(SA), Italy
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33
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Herbert MB, Lan Y, Keitz BK, Liu P, Endo K, Day MW, Houk KN, Grubbs RH. Decomposition pathways of Z-selective ruthenium metathesis catalysts. J Am Chem Soc 2012; 134:7861-6. [PMID: 22500642 DOI: 10.1021/ja301108m] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The decomposition of a Z-selective ruthenium metathesis catalyst and structurally similar analogues has been investigated utilizing X-ray crystallography and density functional theory. Isolated X-ray crystal structures suggest that recently reported C-H activated catalysts undergo decomposition via insertion of the alkylidene moiety into the chelating ruthenium-carbon bond followed by hydride elimination, which is supported by theoretical calculations. The resulting ruthenium hydride intermediates have been implicated in previously observed olefin migration, and thus lead to unwanted byproducts in cross metathesis reactions. Preventing these decomposition modes will be essential in the design of more active and selective Z-selective catalysts.
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Affiliation(s)
- Myles B Herbert
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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34
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35
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Fernández I, Lugan N, Lavigne G. Effects of Attractive Through Space π–π* Interactions on the Structure, Reactivity, and Activity of Grubbs II Complexes. Organometallics 2012. [DOI: 10.1021/om201232p] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Israel Fernández
- Departamento de Química
Orgánica I, Universidad Complutense de Madrid, 28040-Madrid, Spain
| | - Noël Lugan
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, 31077 Toulouse, CEDEX 4, France
| | - Guy Lavigne
- Laboratoire de Chimie de Coordination du CNRS, 205 Route de Narbonne, 31077 Toulouse, CEDEX 4, France
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36
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Lamberti M, Fortman GC, Poater A, Broggi J, Slawin AMZ, Cavallo L, Nolan SP. Coordinatively Unsaturated Ruthenium Complexes As Efficient Alkyne–Azide Cycloaddition Catalysts. Organometallics 2012. [DOI: 10.1021/om2012425] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Marina Lamberti
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, U.K
- Dipartimento di Chimica e Biologia, Università di Salerno, Via Ponte don Melillo,
I-84084 Fisciano (SA), Italy
| | - George C. Fortman
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, U.K
| | - Albert Poater
- Catalan Institute for Water Research
(ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, E-17003
Girona, Spain
- Institut
de Química Computacional,
Departament de Química, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Julie Broggi
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, U.K
| | | | - Luigi Cavallo
- KAUST Catalyst Research Center, 4700 King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Steven P. Nolan
- EaStCHEM School of Chemistry, University of St Andrews, St Andrews, KY16 9ST, U.K
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37
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Zhao ZX, Wang HY, Guo YL. Studies on CH3CN-assisted decomposition of 1st Grubbs catalyst by electrospray ionization tandem mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:3401-3410. [PMID: 22002693 DOI: 10.1002/rcm.5240] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The CH(3)CN-assisted decomposition reaction of the 1(st) Grubbs catalyst (1) was studied using electrospray ionization tandem mass spectrometry (ESI-MS/MS). We detected a series of Ru-intermediates and decomposition products by off-line and on-line ESI-MS(/MS) monitoring of the decomposition process. In particular, an on-line microreactor method was applied with ESI-MS/MS to profile the change and relationship of various Ru-intermediates by controlling the reaction within the first 30 s of its time scale. The main fast decomposition mechanism of Ru-catalyst 1 in the presence of CH(3)CN was similar to that proposed by Grubbs, and this was confirmed by detecting the (PhCH(2)PCy(3))(+) ion at m/z 371 as the major decomposition products with ESI-MS. We also studied the time evolution of the transient reactive Ru-intermediate ions step by step with ESI-MS/MS and detected the C-H bond activation products of toluene--dehydrogenated PCy(3), such as P(Cy)(2)(C(6)H(9)), P(Cy)(2)Ph--by analyzing the decomposition reaction solution by gas chromatography (GC)/MS. The mechanism of another minor decomposition pathway involving the phosphine activation of catalyst 1 was proposed on the basis of the ESI-MS(/MS) interception and characterization of the transient reactive Ru-species in the decomposition reaction solution. Finally the coordination effect of the CH(3)CN in assisting the decomposition and stabilizing the transient Ru-complexes is discussed.
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Affiliation(s)
- Zhi-Xiong Zhao
- Shanghai Mass Spectrometry Center, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, PR China
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38
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Serrano I, López MI, Ferrer Í, Poater A, Parella T, Fontrodona X, Solà M, Llobet A, Rodríguez M, Romero I. New Ru(II) Complexes Containing Oxazoline Ligands As Epoxidation Catalysts. Influence of the Substituents on the Catalytic Performance. Inorg Chem 2011; 50:6044-54. [PMID: 21650155 DOI: 10.1021/ic200053f] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Isabel Serrano
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - M. Isabel López
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Íngrid Ferrer
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Albert Poater
- Catalan Institute for Water Research (ICRA), H2O Building, Scientific and Technological Park of the University of Girona, Emili Grahit 101, E-17003 Girona, Spain
| | - Teodor Parella
- Departament de Química and Servei de RMN, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
| | - Xavier Fontrodona
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Miquel Solà
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Antoni Llobet
- Departament de Química and Servei de RMN, Universitat Autònoma de Barcelona, E-08193 Bellaterra, Barcelona, Spain
- Institute of Chemical Research of Catalonia (ICIQ), Av. Països Catalans 16, E-43007 Tarragona, Spain
| | - Montserrat Rodríguez
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
| | - Isabel Romero
- Departament de Química, Serveis Tècnics de Recerca and Institut de Química Computacional, Universitat de Girona, Campus de Montilivi, E-17071 Girona, Spain
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39
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Aharoni A, Vidavsky Y, Diesendruck CE, Ben-Asuly A, Goldberg I, Lemcoff NG. Ligand Isomerization in Sulfur-Chelated Ruthenium Benzylidenes. Organometallics 2011. [DOI: 10.1021/om1011402] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Anna Aharoni
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Yuval Vidavsky
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | | | - Amos Ben-Asuly
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Achva Academic College, Shikmim 79800, Israel
| | - Israel Goldberg
- School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - N. Gabriel Lemcoff
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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40
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Poater A, Ragone F, Garrido M, Pérez S, Poch M, Correa A, Cavallo L. Deactivation of Ru-benzylidene Grubbs catalysts active in olefin metathesis. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.procs.2011.04.131] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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41
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Credendino R, Poater A, Ragone F, Cavallo L. A computational perspective of olefins metathesis catalyzed by N-heterocyclic carbene ruthenium (pre)catalysts. Catal Sci Technol 2011. [DOI: 10.1039/c1cy00052g] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Herndon JW. The chemistry of the carbon–transition metal double and triple bond: Annual survey covering the year 2009. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.07.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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43
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Poater A, Bahri-Laleh N, Cavallo L. Rationalizing current strategies to protect N-heterocyclic carbene-based ruthenium catalysts active in olefin metathesis from C–H (de)activation. Chem Commun (Camb) 2011; 47:6674-6. [DOI: 10.1039/c1cc11594d] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Poater A, Ragone F, Correa A, Cavallo L. Comparison of different ruthenium–alkylidene bonds in the activation step with N-heterocyclic carbene Ru-catalysts for olefins metathesis. Dalton Trans 2011; 40:11066-9. [DOI: 10.1039/c1dt10959f] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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45
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Yu HZ, Jiang YY, Fu Y, Liu L. Alternative Mechanistic Explanation for Ligand-Dependent Selectivities in Copper-Catalyzed N- and O-Arylation Reactions. J Am Chem Soc 2010; 132:18078-91. [DOI: 10.1021/ja104264v] [Citation(s) in RCA: 181] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Hai-Zhu Yu
- Department of Chemistry, Joint Laboratory of Green Synthetic Chemistry, University of Science and Technology of China, Hefei 230026 Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yuan-Ye Jiang
- Department of Chemistry, Joint Laboratory of Green Synthetic Chemistry, University of Science and Technology of China, Hefei 230026 Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Yao Fu
- Department of Chemistry, Joint Laboratory of Green Synthetic Chemistry, University of Science and Technology of China, Hefei 230026 Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Lei Liu
- Department of Chemistry, Joint Laboratory of Green Synthetic Chemistry, University of Science and Technology of China, Hefei 230026 Department of Chemistry, Tsinghua University, Beijing 100084, China
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Poater A, Ragone F, Correa A, Szadkowska A, Barbasiewicz M, Grela K, Cavallo L. Mechanistic Insights into the cis-trans Isomerization of Ruthenium Complexes Relevant to Catalysis of Olefin Metathesis. Chemistry 2010; 16:14354-64. [DOI: 10.1002/chem.201001849] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Nitsch-Velasquez L, Autschbach J. Toward a generalization of the Clough-Lutz-Jirgensons effect: Chiral organic acids with alkyl, hydroxyl, and halogen substituents. Chirality 2010; 22 Suppl 1:E81-95. [DOI: 10.1002/chir.20863] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Poater A, Gallegos Saliner A, Solà M, Cavallo L, Worth AP. Computational methods to predict the reactivity of nanoparticles through structure-property relationships. Expert Opin Drug Deliv 2010; 7:295-305. [PMID: 20201736 DOI: 10.1517/17425240903508756] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
IMPORTANCE OF THE FIELD Innovative biomedical techniques operational at the nanoscale level are being developed in therapeutics, including advanced drug delivery systems and targeted nanotherapy. Given the large number of nanoparticles that are being developed for possible biomedical use, the use of computational methods in the assessment of their properties is of key importance. AREAS COVERED IN THIS REVIEW Among the in silico methods, quantum mechanics is still used rarely in the study of nanostructured particles. This review provides an overview of some of the main quantum mechanics methods that are already used in the assessment of chemicals. Furthermore, classical tools used in the chemistry field are described, to show their potential also in the pharmacological field. WHAT THE READER WILL GAIN The current status of computational methods in terms of availability and applicability to nanoparticles, and recommendations for further research are highlighted. TAKE HOME MESSAGE The in silico modelling of nanoparticles can assist in targeting and filling gaps in knowledge on the effects of these particular particles. Computational models of the behaviour of nanoparticles in biological systems, including simulation models for predicting intermolecular interactions and harmful side effects, can be highly valuable in screening candidate particles for potential biomedical use in diagnostics, imaging and drug delivery.
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Affiliation(s)
- Albert Poater
- Institut Català de Recerca de l'Aigua (ICRA), Parc Científic i Tecnològic de la Universitat de Girona, Emili Grahit 101, Girona, Spain.
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Casitas A, Poater A, Solà M, Stahl SS, Costas M, Ribas X. Molecular mechanism of acid-triggered aryl–halide reductive elimination in well-defined aryl–CuIII–halide species. Dalton Trans 2010; 39:10458-63. [DOI: 10.1039/c0dt00284d] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Navarro O, Viciu MS. (N-Heterocyclic Carbene)-Metal Complexes and Their Application in Catalysis. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b927092m] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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