1
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Evaluation of Catalysts for the Metathesis of Ethene and 2-Butene to Propene. Catalysts 2022. [DOI: 10.3390/catal12020188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Different metathesis catalysts were evaluated regarding their activity for propene production from ethene and trans-butene feedstocks. Nickel, molybdenum, rhenium and tungsten, along with bimetallic nickel-rhenium systems were applied with commercial supports and self-synthesized MCM-41. For the latter support the Si/Al ratio was adjusted as an additional optimization parameter (Si/Al = 60). Attractive activities were observed using Re and NiRe based catalysts at moderate temperatures of 200–250 °C. In contrast, the tungsten-based catalysts were only active above 450 °C. Three catalysts, namely Re/AlMCM-41(60), NiRe/mix (1:1) and W/SiO2 offered propene selectivity’s exceeding 40% at attractive conversion rates. These catalysts were characterized by BET, powder XRD, NH3-TPD and TPR-TPO-TPR cycles. At specific reaction temperatures, reaction-regeneration cycles were performed, which revealed that for the Re and W catalysts the initial reactant conversions and propene selectivity can be recovered. In contrast, for the NiRe catalyst, a continuous, gradual and irreversible decrease of activity was observed. Even though the tungsten catalyst was operated at the highest temperature, no irreversible decrease in conversion and propene selectivity occurred. Therefore, this catalyst has potential as a promising candidate for the synthesis of propene.
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2
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Byun S, Park DA, Kim S, Kim S, Ryu JY, Lee J, Hong S. Highly selective ethenolysis with acyclic-aminooxycarbene ruthenium catalysts. Inorg Chem Front 2022. [DOI: 10.1039/d1qi01132d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Acyclic carbene–ruthenium catalysts were developed for the ethenolysis. Remarkable catalytic efficiency (turnover numbers of 100 000) and excellent α-olefin selectivity (up to 98%) were exhibited.
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Affiliation(s)
- Seunghwan Byun
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
- Grubbs Center for Polymers and Catalysis, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Da-Ae Park
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Seyong Kim
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Sunghyun Kim
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
| | - Ji Yeon Ryu
- Department of Chemistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Junseong Lee
- Department of Chemistry, Chonnam National University, 77 Yongbong-ro, Buk-gu, Gwangju 61186, Republic of Korea
| | - Sukwon Hong
- Department of Chemistry, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
- Grubbs Center for Polymers and Catalysis, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagi-ro, Buk-gu, Gwangju 61005, Republic of Korea
- School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 123 Cheomdan-gwagiro, Buk-gu, Gwangju 61005, Republic of Korea
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3
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Toh RW, Patrzałek M, Nienałtowski T, Piątkowski J, Kajetanowicz A, Wu J, Grela K. Olefin Metathesis in Continuous Flow Reactor Employing Polar Ruthenium Catalyst and Soluble Metal Scavenger for Instant Purification of Products of Pharmaceutical Interest. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2021; 9:16450-16458. [PMID: 34900446 PMCID: PMC8655794 DOI: 10.1021/acssuschemeng.1c06522] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 11/09/2021] [Indexed: 05/03/2023]
Abstract
In recent years, the development of continuous-flow reactors has attracted growing attention from the synthetic community. Moreover, findings in the precise control of the reaction parameters and improved mass/heat transfer have made the flow setup an attractive alternative to batch reactors, both in academia and industry, enabling safe and easy scaling-up of synthetic processes. Even though a majority of the pharmaceutical industry currently rely on batch reactors or semibatch reactors, many are integrating flow technology because of easier maintenance and lower risks. Herein, we demonstrate an operationally simple flow setup for homogeneous ring-closing metathesis, which is applicable to the synthesis of active pharmaceutical ingredients precursors or analogues with high efficiency, low residence time, and in a green solvent. Furthermore, through the addition of a soluble metal scavenger in the subsequent step within the flow system, the level of ruthenium contamination in the final product can be greatly reduced (to less than 5 ppm). To ensure that this method is applicable for industrial usage, an upscale process including a 24 h continuous-flow reaction for more than 60 g of a Sildenafil analogue was achieved in a continuous-flow fashion by adjusting the tubing size and flow rate accordingly.
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Affiliation(s)
- Ren Wei Toh
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
| | - Michał Patrzałek
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Tomasz Nienałtowski
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Pharmaceutical
Works Polpharma SA, Pelplińska
19, 83-200 Starogard
Gdański, Poland
| | - Jakub Piątkowski
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Anna Kajetanowicz
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Email for A.K.:
| | - Jie Wu
- Department
of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore
- Email for J.W.:
| | - Karol Grela
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Email for K.G.:
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4
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Toward E-selective Olefin Metathesis: Computational Design and Experimental Realization of Ruthenium Thio-Indolate Catalysts. Top Catal 2021. [DOI: 10.1007/s11244-021-01468-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
AbstractThe selective transformation of 1-alkenes into E-olefins is a long-standing challenge in olefin metathesis. Density functional theory (DFT) calculations predict high E-selectivity for catalysts incorporating a bidentate, dianionic thio-indolate ligand within a RuXX’(NHC)(py)(= CHR) platform (NHC = N-heterocyclic carbene; py = pyridine). Such complexes are predicted to yield E-olefins by favoring anti-disposed substituents in the transition state expected to be rate-determining: specifically, that for cycloreversion of the metallacyclobutane intermediate. Three pyridine-stabilized catalysts Ru21a-c were synthesized, in which the thio-indolate ligand bears a H, Me, or Ph substituent at the C2 position, and the NHC ligand is the unsaturated imidazoline-2-ylidene Me2IMes (which bears N-mesityl groups and methyl groups on the C4,5 backbone). Single-crystal X-ray diffraction analysis of Ru21c confirms the ligand orientation required for E-selective metathesis, with the thio-indolate sulfur atom binding cis to the NHC, and the indolate nitrogen atom trans to the NHC. However, whereas the new complexes mediated metathetic exchange of their 2-thienylmethylidene ligand in the presence of the common metathesis substrates styrene and allylbenzene, no corresponding self-metathesis products were obtained. Only small amounts of 2-butene (73% (Z)-2-butene) were obtained in self-metathesis of propene using Ru21a. Detailed DFT analysis of this process revealed that product release is surprisingly slow, limiting the reaction rate and explaining the low metathesis activity. With the barrier to dissociation of (Z)-2-butene being lower than that of (E)-2-butene, the calculations also account for the observed Z-selectivity of Ru21a. These findings provide guidelines for catalyst redesign in pursuit of the ambitious goal of E-selective 1-alkene metathesis.
Graphic abstract
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5
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Monsigny L, Kajetanowicz A, Grela K. Ruthenium Complexes Featuring Unsymmetrical N-Heterocyclic Carbene Ligands-Useful Olefin Metathesis Catalysts for Special Tasks. CHEM REC 2021; 21:3648-3661. [PMID: 34145741 DOI: 10.1002/tcr.202100126] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 05/21/2021] [Accepted: 05/26/2021] [Indexed: 12/12/2022]
Abstract
This review describes a distinct class of ruthenium olefin metathesis catalysts featuring unsymmetrical N-heterocyclic carbene (uNHC) ligands, from its historical beginning to the present state of the art. Thanks to advantageous traits, such as pronounced thermodynamic stability, chemical latency, outstanding selectivity, and compatibility with green solvents, these catalysts led to good results in a number of specialized metathesis transformations. Therefore, while being a niche, the uNHC complexes can potentially be implemented in a number of industrial processes, such as valorization of Fischer-Tropsch olefin fractions, ethenolysis of renewable products, and modern pharmaceutical production.
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Affiliation(s)
- Louis Monsigny
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Anna Kajetanowicz
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw, Żwirki i Wigury Street 101, 02-089, Warsaw, Poland
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6
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Mutoh Y, Yamamoto K, Mohara Y, Saito S. (Z)-Selective Hydrosilylation and Hydroboration of Terminal Alkynes Enabled by Ruthenium Complexes with an N-Heterocyclic Carbene Ligand. CHEM REC 2021; 21:3429-3441. [PMID: 34028185 DOI: 10.1002/tcr.202100083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Revised: 04/30/2021] [Accepted: 05/03/2021] [Indexed: 11/08/2022]
Abstract
Metal-catalyzed trans-1,2-hydrosilylations and hydroborations of terminal alkynes that generate synthetically valuable (Z)-alkenylsilanes and (Z)-alkenylboranes remain challenging due to the (E)-selective nature of the reactions and the formation of the thermodynamically unfavorable (Z)-isomer. The development of new, efficient catalytic systems for the (Z)-selective hydrosilylation and hydroboration of terminal alkynes is thus highly desirable from a fundamental perspective as it would deepen our understanding of the metal-catalyzed (Z)-selective hydrosilylation and hydroboration of terminal alkynes. This personal account describes our research for developing a ruthenium complex that can efficiently catalyze the hydrosilylation and hydroboration of terminal alkynes, and for exploring the factors controlling (Z)-selectivity of the reactions. Our effort into the activation of B-protected boronic acids, R-B(dan) (dan=naphthalene-1,8-diaminato), that was believed not to participate in Suzuki-Miyaura cross-coupling, is also discussed.
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Affiliation(s)
- Yuichiro Mutoh
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan.,RIKEN Center for Sustainable Resource Science 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Kensuke Yamamoto
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Yusei Mohara
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
| | - Shinichi Saito
- Department of Chemistry, Faculty of Science, Tokyo University of Science 1-3 Kagurazaka, Shinjuku-ku, Tokyo, 162-8601, Japan
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7
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Abstract
The iminosugar core of natural glyphaeaside C, originally assigned as a derivative of the piperidine natural product 1-deoxynojirimycin (DNJ), has been revised as a derivative of 2,5-dideoxy-2,5-imino-l-mannitol (l-DMDP) by the total synthesis of its enantiomer. This revised l-DMDP-derived configuration is the first of its kind to be observed in nature. The prepared iminosugars displayed the nanomolar inhibition of bovine liver β-glucosidase and β-galactosidase.
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Affiliation(s)
- Brendan J Byatt
- School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
| | - Atsushi Kato
- Department of Hospital Pharmacy, University of Toyama, Sugitani, Toyama 2630, Japan
| | - Stephen G Pyne
- School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, New South Wales 2522, Australia
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8
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Debsharma T, Schmidt B, Laschewsky A, Schlaad H. Ring-Opening Metathesis Polymerization of Unsaturated Carbohydrate Derivatives: Levoglucosenyl Alkyl Ethers. Macromolecules 2021. [DOI: 10.1021/acs.macromol.0c02821] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Tapas Debsharma
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - Bernd Schmidt
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
| | - André Laschewsky
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
- Fraunhofer Institute of Applied Polymer Research IAP, Geiselbergstraße 69, 14476 Potsdam, Germany
| | - Helmut Schlaad
- Institute of Chemistry, University of Potsdam, Karl-Liebknecht-Straße 24-25, 14476 Potsdam, Germany
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9
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Gisemba SA, Ferracane MJ, Murray TF, Aldrich JV. Conformational Constraint between Aromatic Residue Side Chains in the "Message" Sequence of the Peptide Arodyn Using Ring Closing Metathesis Results in a Potent and Selective Kappa Opioid Receptor Antagonist. J Med Chem 2021; 64:3153-3164. [PMID: 33688737 DOI: 10.1021/acs.jmedchem.0c01984] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Kappa opioid receptor (KOR) antagonists have recently shown potential for treating drug addiction and mood disorders. The linear acetylated dynorphin A analog arodyn (Ac[Phe1,2,3,Arg4,d-Ala8]dynorphin A-(1-11)NH2), synthesized in our laboratory, demonstrated potent and selective KOR antagonism. Cyclization of arodyn could potentially stabilize the bioactive conformation and enhance its metabolic stability. The cyclization strategy employed involved ring closing metathesis between adjacent meta- or para-substituted Tyr(allyl) residues in the "message" sequence that were predicted in a docking study to yield analogs that would bind to the KOR with binding poses similar to arodyn. Consistent with the modeling, the resulting analogs retained KOR affinity similar to arodyn; the peptides involving cyclization between para O-allyl groups also retained high KOR selectivity, with one analog exhibiting KOR antagonist potency (KB = 15 nM) similar to arodyn. These promising cyclized analogs with constrained aromatic residues represent novel leads for further exploration of KOR pharmacology.
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Affiliation(s)
- Solomon A Gisemba
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States.,Department of Medicinal Chemistry, University of Florida, Gainesville, Florida 32610, United States
| | - Michael J Ferracane
- Department of Medicinal Chemistry, University of Florida, Gainesville, Florida 32610, United States.,Department of Chemistry, University of Redlands, Redlands, California 92373, United States
| | - Thomas F Murray
- Departments of Pharmacology and Neuroscience, School of Medicine, Creighton University, Omaha, Nebraska 68102, United States
| | - Jane V Aldrich
- Department of Medicinal Chemistry, The University of Kansas, Lawrence, Kansas 66045, United States.,Department of Medicinal Chemistry, University of Florida, Gainesville, Florida 32610, United States
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10
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Blanco CO, Sims J, Nascimento DL, Goudreault AY, Steinmann SN, Michel C, Fogg DE. The Impact of Water on Ru-Catalyzed Olefin Metathesis: Potent Deactivating Effects Even at Low Water Concentrations. ACS Catal 2021; 11:893-899. [PMID: 33614193 PMCID: PMC7886052 DOI: 10.1021/acscatal.0c04279] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 12/29/2020] [Indexed: 12/14/2022]
Abstract
Ruthenium catalysts for olefin metathesis are widely viewed as water-tolerant. Evidence is presented, however, that even low concentrations of water cause catalyst decomposition, severely degrading yields. Of 11 catalysts studied, fast-initiating examples (e.g., the Grela catalyst RuCl2(H2IMes)(=CHC6H4-2-O i Pr-5-NO2) were most affected. Maximum water tolerance was exhibited by slowly initiating iodide and cyclic (alkyl)(amino)carbene (CAAC) derivatives. Computational investigations indicated that hydrogen bonding of water to substrate can also play a role, by retarding cyclization relative to decomposition. These results have important implications for olefin metathesis in organic media, where water is a ubiquitous contaminant, and for aqueous metathesis, which currently requires superstoichiometric "catalyst" for demanding reactions.
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Affiliation(s)
- Christian O. Blanco
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
| | - Joshua Sims
- Univ. Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratorie de Chimie, F-69342
Lyon, France
| | - Daniel L. Nascimento
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
| | - Alexandre Y. Goudreault
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
| | - Stephan N. Steinmann
- Univ. Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratorie de Chimie, F-69342
Lyon, France
| | - Carine Michel
- Univ. Lyon, ENS de Lyon,
CNRS UMR 5182, Université Claude Bernard Lyon 1, Laboratorie de Chimie, F-69342
Lyon, France
| | - Deryn E. Fogg
- Center for Catalysis Research & Innovation, and
Department of Chemistry and Biomolecular Sciences, University of
Ottawa, Ottawa, Ontario K1N 6N57, Canada
- Department of Chemistry, University of
Bergen, Allégaten 41, N-5007 Bergen,
Norway
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11
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Nienałtowski T, Krzesiński P, Baumert ME, Skoczeń A, Suska-Kauf E, Pawłowska J, Kajetanowicz A, Grela K. 4-Methyltetrahydropyran as a Convenient Alternative Solvent for Olefin Metathesis Reaction: Model Studies and Medicinal Chemistry Applications. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2020; 8:18215-18223. [PMID: 33344098 PMCID: PMC7739489 DOI: 10.1021/acssuschemeng.0c06668] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/30/2020] [Indexed: 05/03/2023]
Abstract
A number of metathesis reactions were successfully conducted in 4-methyltetrahydropyran, including both standard model dienes, as well as more complex substrates, such as analogues of biologically active compounds and active pharmaceutical ingredients. To place this solvent in a context of pharmaceutical R + D, larger-scale syntheses of SUAM 1221, a prolyl endopeptidase inhibitor with potential application in Alzheimer disease treatment, and a derivative of sildenafil, an analogue of the popular Viagra drug, were executed. In the latter case, despite all the setup being made in air, the metathesis reaction at a 33 g scale proceeded very well with relatively low catalyst loading and without need of aqueous workup or column chromatography.
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Affiliation(s)
- Tomasz Nienałtowski
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
- Pharmaceutical
Works Polpharma SA, Pelplińska 19, 83-200 Starogard Gdański, Poland
| | - Paweł Krzesiński
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Marcel E. Baumert
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Aleksandra Skoczeń
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Ewa Suska-Kauf
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Jolanta Pawłowska
- Pharmaceutical
Works Polpharma SA, Pelplińska 19, 83-200 Starogard Gdański, Poland
| | - Anna Kajetanowicz
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Karol Grela
- Faculty
of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
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12
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Bilel H, Hamdi N, Fischmeister C, Bruneau C. Transformations of bio‐sourced 4‐hydroxyphenylpropanoids based on olefin metathesis. ChemCatChem 2020. [DOI: 10.1002/cctc.202000959] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Hallouma Bilel
- Chemistry Department College of Science Jouf University P.O. Box 2014 Sakaka Saudi Arabia
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09) Higher Institute of Environmental Sciences and Technology University of Carthage Hammam-Lif Tunisia
| | - Naceur Hamdi
- Research Laboratory of Environmental Sciences and Technologies (LR16ES09) Higher Institute of Environmental Sciences and Technology University of Carthage Hammam-Lif Tunisia
- Colleges of Science and Arts at Al Rass Qassim University Qassim Saudi Arabia
| | - Cédric Fischmeister
- Univ Rennes CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR6226 35000 Rennes France
| | - Christian Bruneau
- Univ Rennes CNRS, ISCR (Institut des Sciences Chimiques de Rennes) – UMR6226 35000 Rennes France
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13
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Specialized Olefin Metathesis Catalysts Featuring Unsymmetrical N-Heterocyclic Carbene Ligands Bearing N-(Fluoren-9-yl) Arm. Catalysts 2020. [DOI: 10.3390/catal10060599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Beneficial structural motifs from two known state-of-the-art olefin metathesis catalysts types, bearing unsymmetrical N-heterocyclic carbenes (uNHCs), were combined into a new hybridized design thereby translating the complementary beneficial reactivity demonstrated by their ‘parent’ complexes to the new N-fluorene derived olefin metathesis catalysts. Two chelating 2-iso-propoxy-benzylidene (Hoveyda-type) and two 3-phenyl-1H-inden-1-ylidene (indenylidene-type) complexes were successfully prepared by in situ generation of either the N′-mesityl (Mes) or N′-diisopropylphenyl (Dipp) derived uNHCs taking advantage of the thermal decomposition of the corresponding 2-(penta-fluorophenyl)-imidazolidines (NHC adducts). The new fluorene-derived catalysts mediate challenging olefin metathesis processes, such as α-olefin self-metathesis, with high selectivity and conversion.
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14
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Dąbrowski M, Wyrębek P, Trzybiński D, Woźniak K, Grela K. In a Quest for Selectivity Paired with Activity: A Ruthenium Olefin Metathesis Catalyst Bearing an Unsymmetrical Phenanthrene‐Based N‐Heterocyclic Carbene. Chemistry 2020; 26:3782-3794. [DOI: 10.1002/chem.201904549] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 12/02/2019] [Indexed: 01/24/2023]
Affiliation(s)
- Michał Dąbrowski
- Laboratory of Organometallic SynthesisBiological and Chemical Research CentreFaculty of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Przemysław Wyrębek
- Laboratory of Organometallic SynthesisBiological and Chemical Research CentreFaculty of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Damian Trzybiński
- Laboratory of CrystallochemistryBiological and Chemical Research CentreFaculty of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Krzysztof Woźniak
- Laboratory of CrystallochemistryBiological and Chemical Research CentreFaculty of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Karol Grela
- Laboratory of Organometallic SynthesisBiological and Chemical Research CentreFaculty of ChemistryUniversity of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
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15
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Monty OBC, Nyshadham P, Bohren KM, Palaniappan M, Matzuk MM, Young DW, Simmons N. Homogeneous and Functional Group Tolerant Ring-Closing Metathesis for DNA-Encoded Chemical Libraries. ACS COMBINATORIAL SCIENCE 2020; 22:80-88. [PMID: 31913011 PMCID: PMC7014401 DOI: 10.1021/acscombsci.9b00199] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Reaction heterogeneity, poor pH control, and catalyst decomposition in the ring-closing metathesis (RCM) of DNA-chemical conjugates lead to poor yields of the cyclized products. Herein we address these issues with a RCM reaction system that includes a novel aqueous solvent combination to enable reaction homogeneity, an acidic buffer system which masks traditionally problematic functional groups, and a decomposition-resistant catalyst which maximizes conversion to the cyclized product. Additionally, we provide a systematic study of the substrate scope of the on-DNA RCM reaction, a demonstration of its applicability to a single-substrate DNA-encoded chemical library that includes sequencing analysis, and the first successful stapling of an unprotected on-DNA [i, i+4] peptide.
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Affiliation(s)
- Olivier B. C. Monty
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
- Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States
| | - Pranavanand Nyshadham
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
| | - Kurt M. Bohren
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
| | - Murugesan Palaniappan
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
| | - Martin M. Matzuk
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
| | - Damian W. Young
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
| | - Nicholas Simmons
- Center for Drug Discovery and Department of Pathology and Immunology, Baylor College of Medicine, One Baylor Plaza, Houston, Texas 77030, United States
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16
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Nascimento DL, Fogg DE. Origin of the Breakthrough Productivity of Ruthenium–Cyclic Alkyl Amino Carbene Catalysts in Olefin Metathesis. J Am Chem Soc 2019; 141:19236-19240. [DOI: 10.1021/jacs.9b10750] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Daniel L. Nascimento
- Center for Catalysis Research & Innovation, and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5 Ontario, Canada
| | - Deryn E. Fogg
- Center for Catalysis Research & Innovation, and Department of Chemistry and Biomolecular Sciences, University of Ottawa, Ottawa, K1N 6N5 Ontario, Canada
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17
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Rajkiewicz AA, Skowerski K, Trzaskowski B, Kajetanowicz A, Grela K. 2-Methyltetrahydrofuran as a Solvent of Choice for Spontaneous Metathesis/Isomerization Sequence. ACS OMEGA 2019; 4:1831-1837. [PMID: 31459437 PMCID: PMC6648348 DOI: 10.1021/acsomega.8b03027] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 01/08/2019] [Indexed: 05/18/2023]
Abstract
A new protocol for ring-closing metathesis/isomerization sequence was developed. The reactions of selected dienes were performed in overheated 2-methyltetrahydrofuran at 120 °C and provided a wide range of cyclic vinyl ethers and amides with good yields and selectivities. Computational analysis suggests that the relative yield of products depends on a thermodynamically driven process on the basis of relative stabilities of isomers.
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Affiliation(s)
- Adam A. Rajkiewicz
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | | | | | - Anna Kajetanowicz
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
- E-mail: (A.K.)
| | - Karol Grela
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
- E-mail: (K.G.)
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18
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Małecki P, Gajda K, Gajda R, Woźniak K, Trzaskowski B, Kajetanowicz A, Grela K. Specialized Ruthenium Olefin Metathesis Catalysts Bearing Bulky Unsymmetrical NHC Ligands: Computations, Synthesis, and Application. ACS Catal 2018. [DOI: 10.1021/acscatal.8b04783] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Paweł Małecki
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | - Katarzyna Gajda
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | - Roman Gajda
- Faculty of Chemistry, University of Warsaw, 02-089 Warszawa, Poland
| | | | | | - Anna Kajetanowicz
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warszawa, Poland
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19
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Sytniczuk A, Dąbrowski M, Banach Ł, Urban M, Czarnocka-Śniadała S, Milewski M, Kajetanowicz A, Grela K. At Long Last: Olefin Metathesis Macrocyclization at High Concentration. J Am Chem Soc 2018; 140:8895-8901. [DOI: 10.1021/jacs.8b04820] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Adrian Sytniczuk
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Michał Dąbrowski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Łukasz Banach
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Mateusz Urban
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Sylwia Czarnocka-Śniadała
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Mariusz Milewski
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Anna Kajetanowicz
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Karol Grela
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
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20
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Yu M, Lou S, Gonzalez-Bobes F. Ring-Closing Metathesis in Pharmaceutical Development: Fundamentals, Applications, and Future Directions. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00093] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Miao Yu
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08903-0191, United States
| | - Sha Lou
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08903-0191, United States
| | - Francisco Gonzalez-Bobes
- Chemical & Synthetic Development, Bristol-Myers Squibb Company, One Squibb Drive, New Brunswick, New Jersey 08903-0191, United States
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21
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Dumas A, Tarrieu R, Vives T, Roisnel T, Dorcet V, Baslé O, Mauduit M. A Versatile and Highly Z-Selective Olefin Metathesis Ruthenium Catalyst Based on a Readily Accessible N-Heterocyclic Carbene. ACS Catal 2018. [DOI: 10.1021/acscatal.8b00151] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Adrien Dumas
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
- DEMETA SAS, 6 rue Pierre-Joseph Colin, 35000 Rennes, France
| | - Robert Tarrieu
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Thomas Vives
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | | | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Olivier Baslé
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
| | - Marc Mauduit
- Univ Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR-UMR 6226, F-35000 Rennes, France
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22
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Hughes D, Wheeler P, Ene D. Olefin Metathesis in Drug Discovery and Development—Examples from Recent Patent Literature. Org Process Res Dev 2017. [DOI: 10.1021/acs.oprd.7b00319] [Citation(s) in RCA: 72] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- David Hughes
- Cidara Therapeutics, 6310 Nancy
Ridge Drive, STE 101, San Diego, California 92121, United States
| | - Philip Wheeler
- Materia, Inc., 60 N San Gabriel
Boulevard, Pasadena, California 91107, United States
| | - Doina Ene
- Materia, Inc., 60 N San Gabriel
Boulevard, Pasadena, California 91107, United States
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23
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Bailey GA, Lummiss JAM, Foscato M, Occhipinti G, McDonald R, Jensen VR, Fogg DE. Decomposition of Olefin Metathesis Catalysts by Brønsted Base: Metallacyclobutane Deprotonation as a Primary Deactivating Event. J Am Chem Soc 2017; 139:16446-16449. [DOI: 10.1021/jacs.7b08578] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gwendolyn A. Bailey
- Center
for Catalysis Research and Innovation, and Department of Chemistry
and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - Justin A. M. Lummiss
- Center
for Catalysis Research and Innovation, and Department of Chemistry
and Biomolecular Sciences, University of Ottawa, Ottawa K1N 6N5, Canada
| | - 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
| | - Robert McDonald
- X-Ray
Crystallography Laboratory, University of Alberta, Edmonton, Alberta T6G 2G2, Canada
| | - 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 K1N 6N5, Canada
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24
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Engel J, Smit W, Foscato M, Occhipinti G, Törnroos KW, Jensen VR. Loss and Reformation of Ruthenium Alkylidene: Connecting Olefin Metathesis, Catalyst Deactivation, Regeneration, and Isomerization. J Am Chem Soc 2017; 139:16609-16619. [DOI: 10.1021/jacs.7b07694] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Julien Engel
- Institute
of Organic Chemistry, RWTH Aachen University, Landoltweg 1, D-52074 Aachen, Germany
| | - 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
| | - Karl W. Törnroos
- 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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25
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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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26
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Lv Z, Chen Z, Hu Y, Zheng W, Wang H, Mo W, Yin G. A General Strategy for Open-Flask Alkene Isomerization by Ruthenium Hydride Complexes with Non-Redox Metal Salts. ChemCatChem 2017. [DOI: 10.1002/cctc.201700687] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Zhanao Lv
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
| | - Zhuqi Chen
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
| | - Yue Hu
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
| | - Wenrui Zheng
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
| | - Haibin Wang
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
| | - Wanling Mo
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
| | - Guochuan Yin
- School of Chemistry and Chemical Engineering; Key laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education, Hubei Key Laboratory of Material Chemistry and Service Failure; Huazhong University of Science and Technology; Wuhan 430074 P.R. China
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27
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Mutoh Y, Mohara Y, Saito S. (Z)-Selective Hydrosilylation of Terminal Alkynes with HSiMe(OSiMe3)2 Catalyzed by a Ruthenium Complex Containing an N-Heterocyclic Carbene. Org Lett 2017; 19:5204-5207. [DOI: 10.1021/acs.orglett.7b02477] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yuichiro Mutoh
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka,
Shinjuku-ku, Tokyo 162-8601, Japan
| | - Yusei Mohara
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka,
Shinjuku-ku, Tokyo 162-8601, Japan
| | - Shinichi Saito
- Department of Chemistry, Faculty of Science, Tokyo University of Science, 1-3 Kagurazaka,
Shinjuku-ku, Tokyo 162-8601, Japan
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28
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Occhipinti G, Törnroos KW, Jensen VR. Pyridine-Stabilized Fast-Initiating Ruthenium Monothiolate Catalysts for Z-Selective Olefin Metathesis. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00441] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Giovanni Occhipinti
- Department of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
| | - Karl W. Törnroos
- 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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29
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Chadwick FM, McKay AI, Martinez-Martinez AJ, Rees NH, Krämer T, Macgregor SA, Weller AS. Solid-state molecular organometallic chemistry. Single-crystal to single-crystal reactivity and catalysis with light hydrocarbon substrates. Chem Sci 2017; 8:6014-6029. [PMID: 28989631 PMCID: PMC5625289 DOI: 10.1039/c7sc01491k] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 07/05/2017] [Indexed: 01/24/2023] Open
Abstract
Solid-state molecular organometallic catalysis (SMOM-cat): synthetic routes, unique structural motifs, mobility in the solid-state and very active gas/solid isomerization catalysts.
Single-crystal to single-crystal solid/gas reactivity and catalysis starting from the precursor sigma-alkane complex [Rh(Cy2PCH2CH2PCy2)(η2η2-NBA)][BArF4] (NBA = norbornane; ArF = 3,5-(CF3)2C6H3) is reported. By adding ethene, propene and 1-butene to this precursor in solid/gas reactions the resulting alkene complexes [Rh(Cy2PCH2CH2PCy2)(alkene)x][BArF4] are formed. The ethene (x = 2) complex, [Rh(Cy2PCH2CH2PCy2)(ethene)2][BArF4]-Oct, has been characterized in the solid-state (single-crystal X-ray diffraction) and by solution and solid-state NMR spectroscopy. Rapid, low temperature recrystallization using solution methods results in a different crystalline modification, [Rh(Cy2PCH2CH2PCy2)(ethene)2][BArF4]-Hex, that has a hexagonal microporous structure (P6322). The propene complex (x = 1) [Rh(Cy2PCH2CH2PCy2)(propene)][BArF4] is characterized as having a π-bound alkene with a supporting γ-agostic Rh···H3C interaction at low temperature by single-crystal X-ray diffraction, variable temperature solution and solid-state NMR spectroscopy, as well as periodic density functional theory (DFT) calculations. A fluxional process occurs in both the solid-state and solution that is proposed to proceed via a tautomeric allyl-hydride. Gas/solid catalytic isomerization of d3-propene, H2C
Created by potrace 1.16, written by Peter Selinger 2001-2019
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CHCD3, using [Rh(Cy2PCH2CH2PCy2)(η2η2-NBA)][BArF4] scrambles the D-label into all possible positions of the propene, as shown by isotopic perturbation of equilibrium measurements for the agostic interaction. Periodic DFT calculations show a low barrier to H/D exchange (10.9 kcal mol–1, PBE-D3 level), and GIPAW chemical shift calculations guide the assignment of the experimental data. When synthesized using solution routes a bis-propene complex, [Rh(Cy2PCH2CH2PCy2)(propene)2][BArF4], is formed. [Rh(Cy2PCH2CH2PCy2)(butene)][BArF4] (x = 1) is characterized as having 2-butene bound as the cis-isomer and a single Rh···H3C agostic interaction. In the solid-state two low-energy fluxional processes are proposed. The first is a simple libration of the 2-butene that exchanges the agostic interaction, and the second is a butene isomerization process that proceeds via an allyl-hydride intermediate with a low computed barrier of 14.5 kcal mol–1. [Rh(Cy2PCH2CH2PCy2)(η2η2-NBA)][BArF4] and the polymorphs of [Rh(Cy2PCH2CH2PCy2)(ethene)2][BArF4] are shown to be effective in solid-state molecular organometallic catalysis (SMOM-Cat) for the isomerization of 1-butene to a mixture of cis- and trans-2-butene at 298 K and 1 atm, and studies suggest that catalysis is likely dominated by surface-active species. [Rh(Cy2PCH2CH2PCy2)(η2η2-NBA)][BArF4] is also shown to catalyze the transfer dehydrogenation of butane to 2-butene at 298 K using ethene as the sacrificial acceptor.
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Affiliation(s)
- F Mark Chadwick
- Department of Chemistry , Chemistry Research Laboratories , University of Oxford , OX1 3TA , UK .
| | - Alasdair I McKay
- Department of Chemistry , Chemistry Research Laboratories , University of Oxford , OX1 3TA , UK .
| | | | - Nicholas H Rees
- Department of Chemistry , Chemistry Research Laboratories , University of Oxford , OX1 3TA , UK .
| | - Tobias Krämer
- Institute of Chemical Sciences , Heriot Watt University , Edinburgh , EH14 4AS , UK .
| | - Stuart A Macgregor
- Institute of Chemical Sciences , Heriot Watt University , Edinburgh , EH14 4AS , UK .
| | - Andrew S Weller
- Department of Chemistry , Chemistry Research Laboratories , University of Oxford , OX1 3TA , UK .
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30
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Małecki P, Gajda K, Ablialimov O, Malińska M, Gajda R, Woźniak K, Kajetanowicz A, Grela K. Hoveyda–Grubbs-Type Precatalysts with Unsymmetrical N-Heterocyclic Carbenes as Effective Catalysts in Olefin Metathesis. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00211] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Paweł Małecki
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Katarzyna Gajda
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Osman Ablialimov
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Maura Malińska
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Roman Gajda
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Krzysztof Woźniak
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Anna Kajetanowicz
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Karol Grela
- Faculty of Chemistry, Biological
and Chemical Research Centre,, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
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31
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Granato AV, Santos AG, Dos Santos EN. p-Cymene as Solvent for Olefin Metathesis: Matching Efficiency and Sustainability. CHEMSUSCHEM 2017; 10:1832-1837. [PMID: 28230317 DOI: 10.1002/cssc.201700116] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2017] [Revised: 02/17/2017] [Indexed: 05/08/2023]
Abstract
The underexploited biorenewable p-cymene is employed as a solvent for the metathesis of various substrates. p-Cymene is a nontoxic compound that can be obtained in large amounts as a side product of the cellulose and citrus industry. For the cross-metathesis of estragole with methyl acrylate, this solvent prevents the consecutive double-bond isomerization of the product and affords the best yield of all solvents tested. Undesired consecutive isomerization is a major challenge for many substrates in olefin metathesis, including pharmaceutical precursors, and the use of p-cymene as a solvent may be a way to prevent it. This solvent results in a better metathesis performance than toluene for the three substrates tested in this work, matching its performance for two other substrates.
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Affiliation(s)
- Artur V Granato
- Chemistry Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Brazil
| | - Alexandra G Santos
- Chemistry Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Brazil
| | - Eduardo N Dos Santos
- Chemistry Department, Federal University of Minas Gerais, Av. Antônio Carlos, 6627, 31270-901, Belo Horizonte, Brazil
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32
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Unprecedented Multifunctionality of Grubbs and Hoveyda–Grubbs Catalysts: Competitive Isomerization, Hydrogenation, Silylation and Metathesis Occurring in Solution and on Solid Phase. Catalysts 2017. [DOI: 10.3390/catal7040111] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
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33
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Santos AG, Bailey GA, dos Santos EN, Fogg DE. Overcoming Catalyst Decomposition in Acrylate Metathesis: Polyphenol Resins as Enabling Agents for PCy3-Stabilized Metathesis Catalysts. ACS Catal 2017. [DOI: 10.1021/acscatal.6b03557] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alexandra G. Santos
- Departamento
de Química-ICEx, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Brazil
| | - Gwendolyn A. Bailey
- Department of Chemistry and Biomolecular Sciences, and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
| | - Eduardo N. dos Santos
- Departamento
de Química-ICEx, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, Brazil
| | - 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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34
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Kajetanowicz A, Milewski M, Rogińska J, Gajda R, Woźniak K. Hoveyda-Type Quinone-Containing Complexes - Catalysts to Prevent Migration of the Double Bond under Metathesis Conditions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201601344] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Anna Kajetanowicz
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Mariusz Milewski
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Joanna Rogińska
- Institute of Organic Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - Roman Gajda
- Department of Chemistry; Warsaw University; Żwirki i Wigury Street 101 02-089 Warsaw Poland
| | - Krzysztof Woźniak
- Department of Chemistry; Warsaw University; Żwirki i Wigury Street 101 02-089 Warsaw Poland
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35
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Burton KME, Pantazis DA, Belli RG, McDonald R, Rosenberg L. Alkene Insertions into a Ru–PR2 Bond. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00757] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Krista M. E. Burton
- Department
of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, British Columbia, Canada V8W 2Y2
| | - Dimitrios A. Pantazis
- Max Planck Institute for Chemical Energy Conversion, Stiftstraße 34-36, D-45470 Mülheim an der Ruhr, Germany
| | - Roman G. Belli
- Department
of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, British Columbia, Canada V8W 2Y2
| | - Robert McDonald
- X-ray
Crystallography Laboratory, Department of Chemistry, University of Alberta, Edmonton, Alberta, Canada T6G 2G2
| | - Lisa Rosenberg
- Department
of Chemistry, University of Victoria, P.O. Box 1700 Stn CSC, Victoria, British Columbia, Canada V8W 2Y2
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36
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McClennan WL, Rufh SA, Lummiss JAM, Fogg DE. A General Decomposition Pathway for Phosphine-Stabilized Metathesis Catalysts: Lewis Donors Accelerate Methylidene Abstraction. J Am Chem Soc 2016; 138:14668-14677. [DOI: 10.1021/jacs.6b08372] [Citation(s) in RCA: 55] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- William L. McClennan
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Stephanie A. Rufh
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Justin A. M. Lummiss
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
| | - Deryn E. Fogg
- Department of Chemistry and Centre for Catalysis Research & Innovation, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada
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37
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Rouen M, Queval P, Borré E, Falivene L, Poater A, Berthod M, Hugues F, Cavallo L, Baslé O, Olivier-Bourbigou H, Mauduit M. Selective Metathesis of α-Olefins from Bio-Sourced Fischer–Tropsch Feeds. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01428] [Citation(s) in RCA: 56] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mathieu Rouen
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR6226, 11 allée
de Beaulieu, CS50837, 35708 Rennes cedex 7, France
| | - Pierre Queval
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR6226, 11 allée
de Beaulieu, CS50837, 35708 Rennes cedex 7, France
| | - Etienne Borré
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR6226, 11 allée
de Beaulieu, CS50837, 35708 Rennes cedex 7, France
| | - Laura Falivene
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division (PSE), KAUST
Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Albert Poater
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division (PSE), KAUST
Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
- Institut
de Química Computacional i Catàlisi and Departament
de Química, Universitat de Girona, Campus Montilivi, 17071 Girona, Spain
| | - Mikaël Berthod
- IFP Energies nouvelles, Rond Point de l’échangeur
de Solaize, BP3, 69360 Solaize, France
| | - François Hugues
- IFP Energies nouvelles, Rond Point de l’échangeur
de Solaize, BP3, 69360 Solaize, France
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), Physical Sciences and Engineering Division (PSE), KAUST
Catalysis Center (KCC), Thuwal 23955-6900, Saudi Arabia
| | - Olivier Baslé
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR6226, 11 allée
de Beaulieu, CS50837, 35708 Rennes cedex 7, France
| | | | - Marc Mauduit
- Ecole Nationale Supérieure de Chimie de Rennes, CNRS UMR6226, 11 allée
de Beaulieu, CS50837, 35708 Rennes cedex 7, France
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38
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Higman CS, Lanterna AE, Marin ML, Scaiano JC, Fogg DE. Catalyst Decomposition during Olefin Metathesis Yields Isomerization-Active Ruthenium Nanoparticles. ChemCatChem 2016. [DOI: 10.1002/cctc.201600738] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Carolyn S. Higman
- Center for Catalysis Research & Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie Ottawa ON K1N 6N5 Canada
| | - Anabel E. Lanterna
- Center for Catalysis Research & Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie Ottawa ON K1N 6N5 Canada
| | - M. Luisa Marin
- Center for Catalysis Research & Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie Ottawa ON K1N 6N5 Canada
| | - Juan C. Scaiano
- Center for Catalysis Research & Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie Ottawa ON K1N 6N5 Canada
| | - Deryn E. Fogg
- Center for Catalysis Research & Innovation; Department of Chemistry and Biomolecular Sciences; University of Ottawa; 10 Marie Curie Ottawa ON K1N 6N5 Canada
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39
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Bidange J, Fischmeister C, Bruneau C. Ethenolysis: A Green Catalytic Tool to Cleave Carbon-Carbon Double Bonds. Chemistry 2016; 22:12226-44. [PMID: 27359344 DOI: 10.1002/chem.201601052] [Citation(s) in RCA: 85] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Indexed: 11/08/2022]
Abstract
Remarkable innovations have been made in the field of olefin metathesis due to the design and preparation of new catalysts. Ethenolysis, which is cross-metathesis with ethylene, represents one catalytic transformation that has been used with the purpose of cleaving internal carbon-carbon double bonds. The objectives were either the ring opening of cyclic olefins to produce dienes or the shortening of unsaturated hydrocarbon chains to degrade polymers or generate valuable shorter terminal olefins in a controlled manner. This Review summarizes several aspects of this reaction: the catalysts, their degradation in the presence of ethylene, some parameters driving their productivity, the side reactions, and the applications of ethenolysis in organic synthesis and in potential industrial applications.
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Affiliation(s)
- Johan Bidange
- UMR 6226, CNRS, Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organometallics, Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 avenue du général Leclerc, 35042, Rennes Cedex, France
| | - Cédric Fischmeister
- UMR 6226, CNRS, Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organometallics, Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 avenue du général Leclerc, 35042, Rennes Cedex, France
| | - Christian Bruneau
- UMR 6226, CNRS, Université de Rennes 1, Institut des Sciences Chimiques de Rennes, Organometallics, Materials and Catalysis, Centre for Catalysis and Green Chemistry, Campus de Beaulieu, 263 avenue du général Leclerc, 35042, Rennes Cedex, France.
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40
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Smit W, Koudriavtsev V, Occhipinti G, Törnroos KW, Jensen VR. Phosphine-Based Z-Selective Ruthenium Olefin Metathesis Catalysts. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00214] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wietse Smit
- Department of Chemistry, University of Bergen, Allégaten
41, N-5007 Bergen, Norway
| | - Vitali Koudriavtsev
- 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
| | - Karl W. Törnroos
- 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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41
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Higman CS, de Araujo MP, Fogg DE. Tandem catalysis versus one-pot catalysis: ensuring process orthogonality in the transformation of essential-oil phenylpropenoids into high-value products via olefin isomerization–metathesis. Catal Sci Technol 2016. [DOI: 10.1039/c5cy02038g] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
One-pot and tandem catalysis methodologies are explored in developing efficient isomerization–metathesis routes to high-value cinnamates and ferulates from essential-oil allylbenzenes.
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Affiliation(s)
- Carolyn S. Higman
- Center for Catalysis Research & Innovation, and Department of Chemistry
- University of Ottawa
- Ottawa
- Canada
| | - Marcio P. de Araujo
- Center for Catalysis Research & Innovation, and Department of Chemistry
- University of Ottawa
- Ottawa
- Canada
| | - Deryn E. Fogg
- Center for Catalysis Research & Innovation, and Department of Chemistry
- University of Ottawa
- Ottawa
- Canada
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42
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Affiliation(s)
- Renat Kadyrov
- Evonik Resource Efficiency GmbH; Rodenbacher Chaussee 4 63457 Hanau-Wolfgang Germany), Fax: (+49) 6181-59-2417
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43
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Chen Y, Wang MY, Fang S, Wang T, Liu JY. DFT Studies on the Reaction Mechanism of 1,3-Conjugated Dienes Isomerization Catalyzed by Ruthenium Hydride. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00127] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yu Chen
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Mei-yan Wang
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Sheng Fang
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Ting Wang
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
| | - Jing-yao Liu
- Institute of Theoretical
Chemistry, Jilin University, Changchun 130023, People’s Republic of China
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44
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Editorial of Special Issue Ruthenium Complex: The Expanding Chemistry of the Ruthenium Complexes. Molecules 2015; 20:17244-74. [PMID: 26393560 PMCID: PMC6332046 DOI: 10.3390/molecules200917244] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2015] [Revised: 09/09/2015] [Accepted: 09/11/2015] [Indexed: 12/18/2022] Open
Abstract
Recent trends in Ru complex chemistry are surveyed with emphasis on the development of anticancer drugs and applications in catalysis, polymers, materials science and nanotechnology.
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45
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Tan L, Li G, Parker KA, Sampson NS. Ru-Catalyzed Isomerization Provides Access to Alternating Copolymers via Ring-Opening Metathesis Polymerization. Macromolecules 2015; 48:4793-4800. [PMID: 26243969 PMCID: PMC4520717 DOI: 10.1021/acs.macromol.5b01058] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 06/24/2015] [Indexed: 01/29/2023]
Abstract
We describe an isomerization-alternating ROMP protocol that gives linear copolymers with rigorous sequence alternation. Bicyclo[4.2.0]oct-7-ene-7-carboxamides of primary amines are isomerized in the presence of (3-BrPyr)2Cl2(H2IMes)Ru=CHPh to the corresponding bicyclo[4.2.0]oct-1(8)-ene-8-carboxamides in which the olefinic bond is tetrasubstituted. The isomerized amides undergo alternating ring-opening metathesis polymerization with cyclohexene to provide soluble and linear copolymers with molecular weights up to ∼130 kDa. This process provides efficient entry to strictly alternating copolymers that can display diverse functional groups.
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Affiliation(s)
- Li Tan
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Guofang Li
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Kathlyn A. Parker
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Nicole S. Sampson
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
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46
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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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47
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Hassam M, Taher A, Arnott GE, Green IR, van Otterlo WAL. Isomerization of Allylbenzenes. Chem Rev 2015; 115:5462-569. [DOI: 10.1021/acs.chemrev.5b00052] [Citation(s) in RCA: 175] [Impact Index Per Article: 19.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Mohammad Hassam
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Abu Taher
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Gareth E. Arnott
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Ivan R. Green
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
| | - Willem A. L. van Otterlo
- Department
of Chemistry and Polymer Science, Stellenbosch University, Private Bag
X1, Matieland 7602, South Africa
- School
of Chemistry, University of the Witwatersrand, Braamfontein, Johannesburg 2000, South Africa
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48
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Larionov E, Li H, Mazet C. Well-defined transition metal hydrides in catalytic isomerizations. Chem Commun (Camb) 2015; 50:9816-26. [PMID: 24901411 DOI: 10.1039/c4cc02399d] [Citation(s) in RCA: 239] [Impact Index Per Article: 26.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
This Feature Article intends to provide an overview of a variety of catalytic isomerization reactions that have been performed using well-defined transition metal hydride precatalysts. A particular emphasis is placed on the underlying mechanistic features of the transformations discussed. These have been categorized depending upon the nature of the substrate and in most cases discussed following a chronological order.
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Affiliation(s)
- Evgeny Larionov
- Organic Chemistry Department, University of Geneva, 30 quai Ernest Ansermet, Geneva 1204-CH, Switzerland.
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49
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2013. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.09.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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50
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Olsen EPK, Singh T, Harris P, Andersson PG, Madsen R. Experimental and theoretical mechanistic investigation of the iridium-catalyzed dehydrogenative decarbonylation of primary alcohols. J Am Chem Soc 2015; 137:834-42. [PMID: 25545272 DOI: 10.1021/ja5106943] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The mechanism for the iridium-BINAP catalyzed dehydrogenative decarbonylation of primary alcohols with the liberation of molecular hydrogen and carbon monoxide was studied experimentally and computationally. The reaction takes place by tandem catalysis through two catalytic cycles involving dehydrogenation of the alcohol and decarbonylation of the resulting aldehyde. The square planar complex IrCl(CO)(rac-BINAP) was isolated from the reaction between [Ir(cod)Cl]2, rac-BINAP, and benzyl alcohol. The complex was catalytically active and applied in the study of the individual steps in the catalytic cycles. One carbon monoxide ligand was shown to remain coordinated to iridium throughout the reaction, and release of carbon monoxide was suggested to occur from a dicarbonyl complex. IrH2Cl(CO)(rac-BINAP) was also synthesized and detected in the dehydrogenation of benzyl alcohol. In the same experiment, IrHCl2(CO)(rac-BINAP) was detected from the release of HCl in the dehydrogenation and subsequent reaction with IrCl(CO)(rac-BINAP). This indicated a substitution of chloride with the alcohol to form a square planar iridium alkoxo complex that could undergo a β-hydride elimination. A KIE of 1.0 was determined for the decarbonylation and 1.42 for the overall reaction. Electron rich benzyl alcohols were converted faster than electron poor alcohols, but no electronic effect was found when comparing aldehydes of different electronic character. The lack of electronic and kinetic isotope effects implies a rate-determining phosphine dissociation for the decarbonylation of aldehydes.
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Affiliation(s)
- Esben P K Olsen
- Department of Chemistry, Technical University of Denmark , 2800 Kgs. Lyngby, Denmark
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