1
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Mingueza-Verdejo P, Rodríguez-Nuévalos S, Oliver-Meseguer J, Leyva-Pérez A. Alkene Cross-Metathesis with 2,5-Dimethyl-2,4-Hexadiene Enables Isobutylenyl/Prenyl Functionalizations and Rubber Valorization. Chemistry 2024; 30:e202400860. [PMID: 38699858 DOI: 10.1002/chem.202400860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/02/2024] [Accepted: 05/03/2024] [Indexed: 05/05/2024]
Abstract
2,5-Dimethyl-2,4-hexadiene is a readily available and easily managable compound, whose symmetric and polymethylated dienic structure should be prone to engage in cross-metathesis reactions with other alkenes, but this has not been apparently exploited so far. Here we show that this reactant enables the easy synthesis of tri- and tetra-susbtituted alkenes (i. e. isobutylenyl and prenyl groups) from simple alkenes under mild reaction conditions, not only with the conventional 2nd generation Grubbs catalyst but also with other Grela-type catalyts such as StickyCat,TM AquaMetTM and GreenCatTM. The use of liquid and low volatile 2,5-dimethyl-2,4-hexadiene avoids the use of gaseous alkene reactants and, besides, showcases the reactivity of polyisoprene (rubber), thus allowing to optimize the reaction conditions for rubber upcycling, after metathesis reaction of the pristine or used polymer with simple alkenes. These results bring low volatile isoprene-type compounds as privileged poly-substituted reactants for alkene cross-metathesis reactions.
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Affiliation(s)
- Paloma Mingueza-Verdejo
- Instituto de Tecnología Química, Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022, València, Spain
| | - Silvia Rodríguez-Nuévalos
- Instituto de Tecnología Química, Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022, València, Spain
| | - Judit Oliver-Meseguer
- Instituto de Tecnología Química, Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022, València, Spain
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química, Universitat Politècnica de València-Agencia Estatal Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022, València, Spain
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2
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Parui N, Mandal T, Maiti S, Dash J. Efficient Synthesis of Cyclohepta[b]indoles and Cyclohepta[b]indole-Indoline Conjugates via RCM, Hydrogenation, and Acid-Catalyzed Ring Expansion: A Biomimetic Approach. Chemistry 2024; 30:e202401059. [PMID: 38623002 DOI: 10.1002/chem.202401059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2024] [Accepted: 04/15/2024] [Indexed: 04/17/2024]
Abstract
Cyclohepta[b]indoles, prevalent in natural products and pharmaceuticals, are conventionally accessed via metal or Lewis acid-mediated cycloadditions with prefunctionalized substrates. Our study introduces an innovative sequential catalytic assembly for synthesizing cyclohepta[b]indoles from readily available isatin derivatives. The process involves three catalytic sequences: ring-closing metathesis, catalytic hydrogenation, and acid-catalyzed ring expansion. The RCM of 2,2-dialkene-3-oxindoles, formed by butenyl Grignard addition to 3-allyl-3-hydroxy-2-oxindoles, yields versatile spirocyclohexene-3-oxindole derivatives. These derivatives undergo further transformations, including dibromination, dihydroxylation, epoxidation, Wacker oxidation at the double bond. Hydrogenation of spirocyclohexene-3-oxindole yields spirocyclohexane-3-oxindoles. Their subsequent acid-catalyzed ring expansion/aromatization, dependent on the acid catalyst, results in either cyclohepta[b]indoles or cyclohepta[b]indole-indoline conjugates, adding a unique synthetic dimension. The utility of this methodology is exemplified through the synthesis of an A-FABP inhibitor, showcasing its potential in pharmaceutical applications.
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Affiliation(s)
- Nabin Parui
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| | - Tirtha Mandal
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| | - Sandip Maiti
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
| | - Jyotirmayee Dash
- School of chemical sciences, Indian Association for the Cultivation of Science, Jadavpur, 700032, Kolkata, India
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3
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Tischler I, Schlaich A, Holm C. Disentanglement of Surface and Confinement Effects for Diene Metathesis in Mesoporous Confinement. ACS OMEGA 2024; 9:598-606. [PMID: 38222509 PMCID: PMC10785312 DOI: 10.1021/acsomega.3c06195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 11/27/2023] [Accepted: 11/29/2023] [Indexed: 01/16/2024]
Abstract
We study the effects of a planar interface and confinement on a generic catalytically activated ring-closing polymerization reaction near an unstructured catalyst. For this, we employ a coarse-grained polymer model using grand-canonical molecular dynamics simulations with a Monte Carlo reaction scheme. Inspired by recent experiments in the group of M. Buchmeiser that demonstrated an increase in ring-closing selectivity under confinement, we show that both the interface effects, i.e., placing the catalyst near a planar wall, and the confinement effects, i.e., locating the catalyst within a pore, lead to an increase of selectivity. We furthermore demonstrate that curvature effects for cylindrical mesopores (2 nm < d < 12.3 nm) influence the distribution of the chain ends, leading to a further increase in selectivity. This leads us to speculate that specially corrugated surfaces might also help to enhance catalytically activated polymerization processes.
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Affiliation(s)
- Ingo Tischler
- Institute
for Computational Physics, University of
Stuttgart, 70569 Stuttgart, Germany
| | - Alexander Schlaich
- Institute
for Computational Physics, University of
Stuttgart, 70569 Stuttgart, Germany
- Stuttgart
Center for Simulation Science, University
of Stuttgart, 70569 Stuttgart, Germany
| | - Christian Holm
- Institute
for Computational Physics, University of
Stuttgart, 70569 Stuttgart, Germany
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4
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Grzesiński Ł, Milewski M, Nadirova M, Kajetanowicz A, Grela K. Unexpected Latency of Z-Stereoretentive Ruthenium Olefin Metathesis Catalysts Bearing Unsymmetrical N-heterocyclic Carbene or Cyclic(alkyl)(amino)carbene Ligands. Organometallics 2023; 42:2453-2459. [PMID: 37772273 PMCID: PMC10526643 DOI: 10.1021/acs.organomet.2c00428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Indexed: 03/12/2023]
Abstract
A set of ruthenium complexes bearing a CAAC or uNHC ligand and a dithiocatechol fragment have been obtained and characterized spectroscopically. The activity and Z-selectivity of the newly obtained catalysts were studied in selected model CM, self-CM, and RCM olefin metathesis reactions. Intriguingly, and in contrast to structurally related NHC-bearing catalysts Ru4a and Ru4b, the CAAC and uNHC analogues showed no or only very little activity in olefin metathesis. Interestingly, despite being not productive in metathesis reactions conducted in solution, Ru8 enabled the synthesis of a model 16-membered macrocyclic lactone of valuable musk smell with excellent chemoselectivity (no C-C double-bond migration was observed) at a concentration 40 times higher than that typically used by organic chemists in similar macrocyclizations (200 mM instead of 5 mM) with excellent Z-selectivity. Unfortunately, also here the conversion was low.
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Affiliation(s)
- Łukasz Grzesiński
- Biological and Chemical Research
Centre, Faculty of Chemistry, University
of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Mariusz Milewski
- Biological and Chemical Research
Centre, Faculty of Chemistry, University
of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Maryana Nadirova
- 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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5
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Garnes-Portolés F, Merino E, Leyva-Pérez A. Mizoroki-Heck Macrocyclization Reactions at 1 M Concentration Catalyzed by Sub-nanometric Palladium Clusters. CHEMSUSCHEM 2023; 16:e202300200. [PMID: 37115962 DOI: 10.1002/cssc.202300200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/10/2023] [Revised: 04/28/2023] [Accepted: 04/28/2023] [Indexed: 06/19/2023]
Abstract
The synthesis of cyclized organic compounds with more than ten atoms (macrocycles) is traditionally based on reversible reactions under highly diluted conditions, typically <0.05 M, in order to circumvent the formation of intermolecular products. These reaction conditions severely hamper industrial productivity and the use of solid catalysts. Herein, it is shown that the intramolecular Mizoroki-Heck reaction of ω-iodide cinnamates proceeds at 1 M concentration when catalyzed by few-atom Pd clusters, either in solution or supported on a solid, to give different macrocycles in good yields. This paradigmatic increase in reaction concentration not only opens the door for macrocycle production with high throughputs but also enables the use of solid catalysts for a macrocyclization reaction in flow.
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Affiliation(s)
- Francisco Garnes-Portolés
- Instituto de Tecnología Química (UPV-CSIC), Universidad Politècnica de València Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022, Valencia, Spain
| | - Estíbaliz Merino
- Universidad de Alcalá, Departamento de Química Orgánica y Química Inorgánica, Instituto de Investigación Química "Andrés M. del Río" (IQAR), Facultad de Farmacia, Alcalá de Henares, 28805, Madrid, Spain
- Instituto Ramón y Cajal de Investigación Sanitaria (IRYCIS), Ctra. de Colmenar Viejo, Km. 9.100, 28034, Madrid, Spain
| | - Antonio Leyva-Pérez
- Instituto de Tecnología Química (UPV-CSIC), Universidad Politècnica de València Consejo Superior de Investigaciones Científicas, Avda. de los Naranjos s/n, 46022, Valencia, Spain
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6
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Wang C, Zhang S, Yuan T, Jimoh AA, Abreu M, Shan C, Wojtas L, Xing Y, Hong X, Shi X. Triazole-modified Ru-carbene complexes: A valid olefin metathesis pre-catalyst for dynamic covalent chemistry via C=C bond formation. CHEM CATALYSIS 2023; 3:100678. [PMID: 37873035 PMCID: PMC10588561 DOI: 10.1016/j.checat.2023.100678] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2023]
Abstract
The 1,2,3-triazole coordinated ruthenium carbene complexes (TA-Ru) were reported for the first time as a new class of modified Grubbs catalyst to achieve challenging olefin metathesis at higher temperatures without catalyst decomposition. Previously reported N-tethered Ru-carbene complexes all suffered from rapid cis/trans isomerization, causing significantly reduced catalyst reactivity. These new TA-Ru complexes hold the active trans-dichloro conformation even at 80 °C, allowing effective olefin metathesis for challenging substrates. With this new TA-Ru catalyst, cross-metathesis (CM), ring-closing metathesis (RCM) and dynamic covalent chemistry (DCvC) were achieved. Excitingly, the reactivity of TA-Ru prevails all previously reported N-coordinated Ru-carbene precatalysts, Grubbs II, and Hoveyda-Grubbs, making the TA-Ru a transformative catalytic system in olefin catalysis.
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Affiliation(s)
- Chenhuan Wang
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Shuyao Zhang
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Teng Yuan
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Abiola Azee Jimoh
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Maxwell Abreu
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Chuan Shan
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | - Lukasz Wojtas
- Department of Chemistry, University of South Florida, Tampa, FL, USA
| | | | - Xin Hong
- Department of Chemistry, Zhejiang University, China
| | - Xiaodong Shi
- Department of Chemistry, University of South Florida, Tampa, FL, USA
- Lead contact
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7
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Musso JV, Gebel P, Gramm V, Frey W, Buchmeiser MR. Tungsten Oxo and Tungsten Imido Alkylidene N-Heterocyclic Carbene Complexes for the Visible-Light-Induced Ring-Opening Metathesis Polymerization of Dicyclopentadiene. Macromolecules 2023. [DOI: 10.1021/acs.macromol.3c00128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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8
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Sytniczuk A, Małecki P, Kajetanowicz A, Grela K. Ruthenium olefin metathesis catalysts bearing two bulky and unsymmetrical NHC ligands. Appl Organomet Chem 2022. [DOI: 10.1002/aoc.6780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Adrian Sytniczuk
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw Warsaw Poland
| | - Paweł Małecki
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw Warsaw Poland
| | - Anna Kajetanowicz
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw Warsaw Poland
| | - Karol Grela
- Biological and Chemical Research Centre, Faculty of Chemistry University of Warsaw Warsaw Poland
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9
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Lin Z, Huang B, Ouyang L, Zheng L. Synthesis of Cyclic Fragrances via Transformations of Alkenes, Alkynes and Enynes: Strategies and Recent Progress. Molecules 2022; 27:3576. [PMID: 35684511 PMCID: PMC9182196 DOI: 10.3390/molecules27113576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 05/17/2022] [Accepted: 05/19/2022] [Indexed: 12/04/2022] Open
Abstract
With increasing demand for customized commodities and the greater insight and understanding of olfaction, the synthesis of fragrances with diverse structures and odor characters has become a core task. Recent progress in organic synthesis and catalysis enables the rapid construction of carbocycles and heterocycles from readily available unsaturated molecular building blocks, with increased selectivity, atom economy, sustainability and product diversity. In this review, synthetic methods for creating cyclic fragrances, including both natural and synthetic ones, will be discussed, with a focus on the key transformations of alkenes, alkynes, dienes and enynes. Several strategies will be discussed, including cycloaddition, catalytic cyclization, ring-closing metathesis, intramolecular addition, and rearrangement reactions. Representative examples and the featured olfactory investigations will be highlighted, along with some perspectives on future developments in this area.
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Affiliation(s)
| | | | | | - Liyao Zheng
- School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China; (Z.L.); (B.H.); (L.O.)
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10
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Dhaene E, Pokratath R, Aalling-Frederiksen O, Jensen KMØ, Smet PF, De Buysser K, De Roo J. Monoalkyl Phosphinic Acids as Ligands in Nanocrystal Synthesis. ACS NANO 2022; 16:7361-7372. [PMID: 35476907 DOI: 10.1021/acsnano.1c08966] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Ligands play a crucial role in the synthesis of colloidal nanocrystals. Nevertheless, only a handful molecules are currently used, oleic acid being the most typical example. Here, we show that monoalkyl phosphinic acids are another interesting ligand class, forming metal complexes with a reactivity that is intermediate between the traditional carboxylates and phosphonates. We first present the synthesis of n-hexyl, 2-ethylhexyl, n-tetradecyl, n-octadecyl, and oleylphosphinic acid. These compounds are suitable ligands for high-temperature nanocrystal synthesis (240-300 °C) since, in contrast to phosphonic acids, they do not form anhydride oligomers. Consequently, CdSe quantum dots synthesized with octadecylphosphinic acid are conveniently purified, and their UV-vis spectrum is free from background scattering. The CdSe nanocrystals have a low polydispersity and a photoluminescence quantum yield up to 18% (without shell). Furthermore, we could synthesize CdSe and CdS nanorods using phosphinic acid ligands with high shape purity. We conclude that the reactivity toward TOP-S and TOP-Se precursors decreases in the following series: cadmium carboxylate > cadmium phosphinate > cadmium phosphonate. By introducing a third and intermediate class of surfactants, we enhance the versatility of surfactant-assisted syntheses.
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Affiliation(s)
- Evert Dhaene
- Department of Chemistry, Ghent University, Gent B-9000, Belgium
| | - Rohan Pokratath
- Department of Chemistry, University of Basel, Basel CH-4058, Switzerland
| | | | - Kirsten M Ø Jensen
- Department of Chemistry, University of Copenhagen, 2100 Copenhagen Ø, Denmark
| | - Philippe F Smet
- Department of Solid State Sciences, Ghent University, Gent B-9000, Belgium
| | | | - Jonathan De Roo
- Department of Chemistry, University of Basel, Basel CH-4058, Switzerland
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11
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Phatake RS, Nechmad NB, Reany O, Lemcoff NG. Highly Substrate‐Selective Macrocyclic Ring Closing Metathesis. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Ravindra S. Phatake
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
- Department of Natural and Life Sciences The Open University of Israel Ra'anana 4353701 Israel
| | - Noy B. Nechmad
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
| | - Ofer Reany
- Department of Natural and Life Sciences The Open University of Israel Ra'anana 4353701 Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
- Ilse Katz Institute for Nanoscale Science and Technology Ben-Gurion University of the Negev Beer-Sheva 8410501 Israel
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12
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Tandon H, Yadav P, Chakraborty T, Suhag V. Can chemical reactivity descriptors explain catalytic reactivity? J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122229] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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13
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Aşkun M, Sagdic K, Inci F, Öztürk B. Olefin Metathesis in Confined Spaces: The Encapsulation of Hoveyda-Grubbs Catalyst in Peanut, Square, and Capsule Shaped Hollow Silica Gels. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01291j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, Hoveyda-Grubbs 2nd generation (HG2) catalyst was encapsulated in hollow mesoporous silica gels with various morphologies (peanut, square, and capsule) by reducing the pore size of the mesoporous...
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14
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Mandal T, Dash J. Ring closing metathesis for the construction of carbazole and indole-fused natural products. Org Biomol Chem 2021; 19:9797-9808. [PMID: 34747427 DOI: 10.1039/d1ob01471d] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The synthesis and functionalization of carbazole ring systems have received considerable attention in organic synthesis due to their widespread occurrence in biologically active compounds. One of the classical methods for the synthesis of carbazoles involves C-C bond formation of a biaryl amine moiety by oxidizing agents. Over the last few years, various new strategies have evolved for the synthesis of carbazole ring systems. During the past two decades, ring-closing metathesis (RCM) based approaches have been efficiently employed for the synthesis of nitrogen containing heteroaromatic systems including carbazoles. Herein, we discuss the construction of carbazole ring systems using RCM and the application of RCM based methods in the preparation of other indole-fused heterocycles. The application of these methods in the synthesis of carbazole alkaloids and bioactive indole-fused natural products has been discussed to highlight the importance of RCM in total synthesis.
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Affiliation(s)
- Tirtha Mandal
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
| | - Jyotirmayee Dash
- School of Chemical Sciences, Indian Association for the Cultivation of Science, Jadavpur, Kolkata-700032, India.
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15
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Jamdade AB, Sutar DV, Bisht GS, Gnanaprakasam B. Ru-MACHO-Catalyzed Direct Inter/Intramolecular Macrocyclization of Alcohols and Ketones. Org Lett 2021; 23:7386-7390. [PMID: 34505782 DOI: 10.1021/acs.orglett.1c02569] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein we describe a new approach for end-to-end cyclization to construct macrocycles through the inter/intramolecular dehydrogenative coupling of alcohols and ketones in the presence of a Ru-MACHO catalyst. This method is highly atom economical and sustainable and can be used for many substrates. Additionally, this method results in the generation of only water as the byproduct. Moreover, in this approach, high dilution of the reactants is crucial for cyclization and high-yield macrocycle synthesis.
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Affiliation(s)
- Akash Bandu Jamdade
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Dashrat Vishambar Sutar
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Girish Singh Bisht
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
| | - Boopathy Gnanaprakasam
- Department of Chemistry, Indian Institute of Science Education and Research, Pune 411008, India
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16
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Ziegler F, Kraus H, Benedikter MJ, Wang D, Bruckner JR, Nowakowski M, Weißer K, Solodenko H, Schmitz G, Bauer M, Hansen N, Buchmeiser MR. Confinement Effects for Efficient Macrocyclization Reactions with Supported Cationic Molybdenum Imido Alkylidene N-Heterocyclic Carbene Complexes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c03057] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Felix Ziegler
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Hamzeh Kraus
- Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, Stuttgart D-70569, Germany
| | - Mathis J. Benedikter
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Dongren Wang
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Johanna R. Bruckner
- Institute of Physical Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Michal Nowakowski
- Department of Chemistry and Center for Sustainable Systems Design (CSSD), University of Paderborn, Warburger Str. 100, Paderborn D-33098, Germany
| | - Kilian Weißer
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
| | - Helena Solodenko
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, Stuttgart 70569, Germany
| | - Guido Schmitz
- Institute for Materials Science, University of Stuttgart, Heisenbergstraße 3, Stuttgart 70569, Germany
| | - Matthias Bauer
- Department of Chemistry and Center for Sustainable Systems Design (CSSD), University of Paderborn, Warburger Str. 100, Paderborn D-33098, Germany
| | - Niels Hansen
- Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, Stuttgart D-70569, Germany
| | - Michael R. Buchmeiser
- Institute of Polymer Chemistry, University of Stuttgart, Pfaffenwaldring 55, Stuttgart D-70569, Germany
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17
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Blanco C, Nascimento DL, Fogg DE. Routes to High-Performing Ruthenium-Iodide Catalysts for Olefin Metathesis: Ligand Lability Is Key to Efficient Halide Exchange. Organometallics 2021; 40:1811-1816. [PMID: 34295013 PMCID: PMC8289337 DOI: 10.1021/acs.organomet.1c00253] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Indexed: 12/14/2022]
Abstract
Clean, high-yielding routes are described to ruthenium-diiodide catalysts that were recently shown to enable high productivity in olefin metathesis. For the second-generation Grubbs and Hoveyda catalysts (GII: RuCl2(H2IMes)(PCy3)(=CHPh); HII: RuCl2(H2IMes)(=CHAr), Ar = C6H4-2-O i Pr), slow salt metathesis is shown to arise from the low lability of the ancillary PCy3 or ether ligands, which retards access to the four-coordinate intermediate required for efficient halide exchange. To exploit the lability of the first-generation catalysts, the diiodide complex RuI2(PCy3)(=CHAr) HI-I 2 was prepared by treating "Grubbs I" (RuCl2(PCy3)2(=CHPh), GI) with NaI, H2C=CHAr (1a), and a phosphine-scavenging Merrifield iodide (MF-I) resin. Subsequent installation of H2IMes or cyclic (alkyl)(amino)carbene (CAAC) ligands afforded the second-generation iodide catalysts in good to excellent yields. Given the incompatibility of the nitro group with a free carbene, the iodo-Grela catalyst RuI2(H2IMes)(=CHAr') (nG-I 2 : Ar' = C6H3-2-O i Pr-4-NO2) was instead accessed by sequential salt metathesis of GI with NaI, installation of H2IMes, and finally cross-metathesis with the nitrostyrenyl ether H2C=CHAr' (1b), with MF-I as the phosphine scavenger. The bulky iodide ligands improve the selectivity for macrocyclization in ring-closing metathesis.
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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, ON, Canada K1N 6N5
| | - Daniel L. Nascimento
- Center
for Catalysis Research & Innovation and Department of Chemistry
and Biomolecular Sciences, University of
Ottawa, Ottawa, ON, Canada K1N 6N5
| | - Deryn E. Fogg
- Center
for Catalysis Research & Innovation and Department of Chemistry
and Biomolecular Sciences, University of
Ottawa, Ottawa, ON, Canada K1N 6N5
- Department
of Chemistry, University of Bergen, Allégaten 41, N-5007 Bergen, Norway
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18
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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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19
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Valeev RF, Sunagatullina GR, Loza VV, Lobov AN, Miftakhov MS. Synthesis of a New 10,11-Didehydro Analog of Epothilone D. RUSSIAN JOURNAL OF ORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1070428021060038] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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20
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Morvan J, Mauduit M, Bertrand G, Jazzar R. Cyclic (Alkyl)(amino)carbenes (CAACs) in Ruthenium Olefin Metathesis. ACS Catal 2021. [DOI: 10.1021/acscatal.0c05508] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Jennifer Morvan
- Université de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
| | - Marc Mauduit
- Université de Rennes, Ecole Nationale Supérieure de Chimie de Rennes, CNRS, ISCR UMR 6226, F-35000 Rennes, France
| | - Guy Bertrand
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
| | - Rodolphe Jazzar
- UCSD-CNRS Joint Research Chemistry Laboratory (UMI 3555), Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093-0358, United States
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21
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Eivgi O, Vaisman A, Lemcoff NG. Latent, Yet Highly Active Photoswitchable Olefin Metathesis Precatalysts Bearing Cyclic Alkyl Amino Carbene (CAAC)/Phosphite Ligands. ACS Catal 2020. [DOI: 10.1021/acscatal.0c04909] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Or Eivgi
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - Anna Vaisman
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
| | - N. Gabriel Lemcoff
- Department of Chemistry, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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22
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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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23
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Tischler I, Schlaich A, Holm C. The Presence of a Wall Enhances the Probability for Ring‐Closing Metathesis: Insights from Classical Polymer Theory and Atomistic Simulations. MACROMOL THEOR SIMUL 2020. [DOI: 10.1002/mats.202000076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ingo Tischler
- Institute for Computational Physics University of Stuttgart 70569 Stuttgart Germany
| | - Alexander Schlaich
- Institute for Computational Physics University of Stuttgart 70569 Stuttgart Germany
| | - Christian Holm
- Institute for Computational Physics University of Stuttgart 70569 Stuttgart Germany
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24
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Nienałtowski T, Szczepanik P, Małecki P, Czajkowska‐Szczykowska D, Czarnocki S, Pawłowska J, Kajetanowicz A, Grela K. Large‐Scale Synthesis of a Niche Olefin Metathesis Catalyst Bearing an Unsymmetrical N‐Heterocyclic Carbene (NHC) Ligand and its Application in a Green Pharmaceutical Context. Chemistry 2020; 26:15708-15717. [DOI: 10.1002/chem.202003830] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 09/14/2020] [Indexed: 12/17/2022]
Affiliation(s)
- Tomasz Nienałtowski
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
- Polpharma SA Pharmaceutical Works Pelplinska 19 83-200 Starogard Gdanski Poland
| | - Paweł Szczepanik
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Paweł Małecki
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Dorota Czajkowska‐Szczykowska
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | | | - Jolanta Pawłowska
- Polpharma SA Pharmaceutical Works Pelplinska 19 83-200 Starogard Gdanski Poland
| | - Anna Kajetanowicz
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
| | - Karol Grela
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02-089 Warsaw Poland
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25
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Mandal T, Dhara K, Parui N, Dash J. Domino Relay Olefin Metathesis of Triallyl Oxindole and Indole Precursors to Access Cyclic Indoxyls and Carbazoles. ChemCatChem 2020. [DOI: 10.1002/cctc.202000813] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Tirtha Mandal
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032 India
| | - Kalyan Dhara
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032 India
| | - Nabin Parui
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032 India
| | - Jyotirmayee Dash
- School of Chemical Sciences Indian Association for the Cultivation of Science Jadavpur, Kolkata 700032 India
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26
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Singh K, Tripathi RP. An Overview on Glyco-Macrocycles: Potential New Lead and their Future in Medicinal Chemistry. Curr Med Chem 2020; 27:3386-3410. [PMID: 30827227 DOI: 10.2174/0929867326666190227232721] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 02/08/2019] [Accepted: 02/14/2019] [Indexed: 12/18/2022]
Abstract
Macrocycles cover a small segment of molecules with a vast range of biological activity in the chemotherapeutic world. Primarily, the natural sources derived from macrocyclic drug candidates with a wide range of biological activities are known. Further evolutions of the medicinal chemistry towards macrocycle-based chemotherapeutics involve the functionalization of the natural product by hemisynthesis. More recently, macrocycles based on carbohydrates have evolved a considerable interest among the medicinal chemists worldwide. Carbohydrates provide an ideal scaffold to generate chiral macrocycles with well-defined pharmacophores in a decorated fashion to achieve the desired biological activity. We have given an overview on carbohydrate-derived macrocycle involving their synthesis in drug design and discovery and potential role in medicinal chemistry.
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Affiliation(s)
- Kartikey Singh
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India
| | - Rama Pati Tripathi
- Medicinal and Process Chemistry Division, CSIR-Central Drug Research Institute, Lucknow 226031, U.P., India.,National Institute of Pharmaceutical Education and Research Raebareli, New Transit Campus, Bijnor Road, Sarojani Nagar Near CRPF Base Camp, Lucknow 226002, U.P., India
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27
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Sarkar S, Gu W, Schmidt EW. Expanding the chemical space of synthetic cyclic peptides using a promiscuous macrocyclase from prenylagaramide biosynthesis. ACS Catal 2020; 10:7146-7153. [PMID: 33457065 PMCID: PMC7805243 DOI: 10.1021/acscatal.0c00623] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cyclic peptides are excellent drug candidates, placing macrocyclization reactions at the apex of drug development. PatG and related dual-action proteases from cyanobactin biosynthesis are responsible for cleaving off the C-terminal recognition sequence and macrocyclizing the substrate to provide cyclic peptides. This reaction has found use in the enzymatic synthesis of diverse macrocycles. However, these enzymes function best on substrates that terminate with the non-proteinogenic thiazole/thiazoline residue, complicating synthetic strategies. Here, we biochemically characterize a new class of PatG-like macrocyclases that natively use proline, obviating the necessity of additional chemical or biochemical steps. We experimentally define the biochemical steps involved in synthesizing the widespread prenylagaramide-like natural products, including macrocyclization and prenylation. Using saturation mutagenesis, we show that macrocyclase PagG and prenyltransferase PagF are highly promiscuous, producing a library of more than 100 cyclic peptides and their prenylated derivatives in vitro. By comparing our results to known cyanobactin macrocyclases, we catalog a series of enzymes from this family that should synthesize most small macrocycles. Collectively, these data reveal that, by selecting the right cyanobactin macrocyclase, a large array of enzymatically synthesized macrocycles are accessible.
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Affiliation(s)
- Snigdha Sarkar
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Wenjia Gu
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Eric W. Schmidt
- Department of Medicinal Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
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28
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Abstract
In the present work, a catalyst variation of the second-generation Hoveyda–Grubbs catalyst, particularly the ammonium-tagged Ru-alkylidene metathesis catalyst AquaMetTM, is under study, not simply to increase the efficiency in olefin metathesis but also the solubility in polar solvents. Moreover, this ionic catalyst was combined with the metal organic framework (MOF) (Cr)MIL-101-SO3−(Na·15-crown-5)+. We started from the experimental results by Grela et al., who increased the performance when the ruthenium catalyst was confined inside the cavities of the MOF, achieving non-covalent interactions between both moieties. Here, using density functional theory (DFT) calculations, the role of the ammonium N-heterocyclic carbene (NHC) tagged and the confinement effects are checked. The kinetics are used to compare reaction profiles, whereas SambVca steric maps and NCI plots are used to characterize the role of the MOF structurally and electronically.
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29
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Jongkind LJ, Rahimi M, Poole D, Ton SJ, Fogg DE, Reek JNH. Protection of Ruthenium Olefin Metathesis Catalysts by Encapsulation in a Self‐assembled Resorcinarene Capsule. ChemCatChem 2020. [DOI: 10.1002/cctc.202000111] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lukas J. Jongkind
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam (The Netherlands
| | - Maryam Rahimi
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam (The Netherlands
- Centre for Catalysis Research & Innovation and Department of Chemistry and Biomolecular Sciences University of Ottawa 10 Marie Curie Ottawa ON K1 N 6 N5 Canada
| | - David Poole
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam (The Netherlands
| | - Stephanie J. Ton
- Centre for Catalysis Research & Innovation and Department of Chemistry and Biomolecular Sciences University of Ottawa 10 Marie Curie Ottawa ON K1 N 6 N5 Canada
| | - Deryn E. Fogg
- Centre for Catalysis Research & Innovation and Department of Chemistry and Biomolecular Sciences University of Ottawa 10 Marie Curie Ottawa ON K1 N 6 N5 Canada
| | - Joost N. H. Reek
- Homogeneous, Supramolecular and Bio-Inspired Catalysis Van't Hoff Institute for Molecular Sciences University of Amsterdam Science Park 904 1098 XH Amsterdam (The Netherlands
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30
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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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31
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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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32
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Sytniczuk A, Milewski M, Kajetanowicz A, Grela K. Preparation of macrocyclic musks via olefin metathesis: comparison with classical syntheses and recent advances. RUSSIAN CHEMICAL REVIEWS 2020. [DOI: 10.1070/rcr4930] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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33
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Segalovich-Gerendash G, Rozenberg I, Alassad N, Nechmad NB, Goldberg I, Kozuch S, Lemcoff NG. Imposing Latency in Ruthenium Sulfoxide-Chelated Benzylidenes: Expanding Opportunities for Thermal and Photoactivation in Olefin Metathesis. ACS Catal 2020. [DOI: 10.1021/acscatal.0c00676] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
| | - Illya Rozenberg
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Nebal Alassad
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Noy B. Nechmad
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - Israel Goldberg
- School of Chemistry, Tel-Aviv University, Tel-Aviv 69978, Israel
| | - Sebastian Kozuch
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
| | - N. Gabriel Lemcoff
- Chemistry Department, Ben-Gurion University of the Negev, Beer-Sheva, 8410501, Israel
- Ilse Katz Institute for Nanoscale Science and Technology, Beer-Sheva 8410501, Israel
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34
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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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35
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Olszewski TK, Bieniek M, Skowerski K. Ruthenium-Based Complexes Bearing Quaternary Ammonium Tags as Versatile Catalysts for Olefin Metathesis: From the Discovery to Practical Applications. Org Process Res Dev 2020. [DOI: 10.1021/acs.oprd.9b00483] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Tomasz K. Olszewski
- Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeze Wyspianskiego 29, 50-370 Wroclaw, Poland
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36
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Girvin ZC, Andrews MK, Liu X, Gellman SH. Foldamer-templated catalysis of macrocycle formation. Science 2019; 366:1528-1531. [PMID: 31857487 PMCID: PMC7956107 DOI: 10.1126/science.aax7344] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2019] [Revised: 09/13/2019] [Accepted: 11/04/2019] [Indexed: 12/19/2022]
Abstract
Macrocycles, compounds containing a ring of 12 or more atoms, find use in human medicine, fragrances, and biological ion sensing. The efficient preparation of macrocycles is a fundamental challenge in synthetic organic chemistry because the high entropic cost of large-ring closure allows undesired intermolecular reactions to compete. Here, we present a bioinspired strategy for macrocycle formation through carbon-carbon bond formation. The process relies on a catalytic oligomer containing α- and β-amino acid residues to template the ring-closing process. The α/β-peptide foldamer adopts a helical conformation that displays a catalytic primary amine-secondary amine diad in a specific three-dimensional arrangement. This catalyst promotes aldol reactions that form rings containing 14 to 22 atoms. Utility is demonstrated in the synthesis of the natural product robustol.
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Affiliation(s)
- Zebediah C Girvin
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, USA
| | | | - Xinyu Liu
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Samuel H Gellman
- Department of Chemistry, University of Wisconsin-Madison, Madison, WI, USA.
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37
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Herndon JW. The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2018. Coord Chem Rev 2019. [DOI: 10.1016/j.ccr.2019.213051] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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38
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Ziegler F, Teske J, Elser I, Dyballa M, Frey W, Kraus H, Hansen N, Rybka J, Tallarek U, Buchmeiser MR. Olefin Metathesis in Confined Geometries: A Biomimetic Approach toward Selective Macrocyclization. J Am Chem Soc 2019; 141:19014-19022. [DOI: 10.1021/jacs.9b08776] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
| | | | | | | | | | - Hamzeh Kraus
- Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, D-70569 Stuttgart, Germany
| | - Niels Hansen
- Institute of Thermodynamics and Thermal Process Engineering, University of Stuttgart, Pfaffenwaldring 9, D-70569 Stuttgart, Germany
| | - Julia Rybka
- Department of Chemistry, Philipps-University of Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany
| | - Ulrich Tallarek
- Department of Chemistry, Philipps-University of Marburg, Hans-Meerwein-Strasse 4, D-35032 Marburg, Germany
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39
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Chołuj A, Krzesiński P, Ruszczyńska A, Bulska E, Kajetanowicz A, Grela K. Noncovalent Immobilization of Cationic Ruthenium Complex in a Metal–Organic Framework by Ion Exchange Leading to a Heterogeneous Olefin Metathesis Catalyst for Use in Green Solvents. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00287] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Artur Chołuj
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Paweł Krzesiński
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Anna Ruszczyńska
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Żwirki i Wigury 101, 02-089 Warsaw, Poland
| | - Ewa Bulska
- 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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40
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Nascimento DL, Gawin A, Gawin R, Guńka PA, Zachara J, Skowerski K, Fogg DE. Integrating Activity with Accessibility in Olefin Metathesis: An Unprecedentedly Reactive Ruthenium-Indenylidene Catalyst. J Am Chem Soc 2019; 141:10626-10631. [PMID: 31248254 DOI: 10.1021/jacs.9b05362] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Access to leading olefin metathesis catalysts, including the Grubbs, Hoveyda, and Grela catalysts, ultimately rests on the nonscaleable transfer of a benzylidene ligand from an unstable, impure aryldiazomethane. The indenylidene ligand can be reliably installed, but to date yields much less reactive catalysts. A fast-initiating, dimeric indenylidene complex (Ru-1) is reported, which reconciles high activity with scaleable synthesis. Each Ru center in Ru-1 is stabilized by a state-of-the-art cyclic alkyl amino carbene (CAAC, C1) and a bridging chloride donor: the lability of the latter elevates the reactivity of Ru-1 to a level previously attainable only with benzylidene derivatives. Evaluation of initiation rate constants reveals that Ru-1 initiates >250× faster than indenylidene catalyst M2 (RuCl2(H2IMes)(PCy3)(Ind)), and 65× faster than UC (RuCl2(C1)2(Ind)). The slow initiation previously regarded as characteristic of indenylidene catalysts is hence due to low ligand lability, not inherently slow cycloaddition at the Ru=CRR' site. In macrocyclization and "ethenolysis" of methyl oleate (i.e., transformation into α-olefins via cross-metathesis with C2H4), Ru-1 is comparable or superior to the corresponding, breakthrough CAAC-benzylidene catalyst. In ethenolysis, Ru-1 is 5× more robust to standard-grade (99.9%) C2H4 than the top-performing catalyst, probably reflecting steric protection at the quaternary CAAC carbon.
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Affiliation(s)
- Daniel L Nascimento
- Center for Catalysis Research and Innovation, and Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , Ontario K1N 6N5 , Canada
| | - Anna Gawin
- Apeiron Synthesis , Duńska 9 , 54-427 Wrocław , Poland
| | - Rafał Gawin
- Apeiron Synthesis , Duńska 9 , 54-427 Wrocław , Poland
| | - Piotr A Guńka
- Faculty of Chemistry , Warsaw University of Technology , Noakowskiego 3 , 00-664 Warsaw , Poland
| | - Janusz Zachara
- Faculty of Chemistry , Warsaw University of Technology , Noakowskiego 3 , 00-664 Warsaw , Poland
| | | | - Deryn E Fogg
- Center for Catalysis Research and Innovation, and Department of Chemistry and Biomolecular Sciences , University of Ottawa , Ottawa , Ontario K1N 6N5 , Canada
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41
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Iwasaki T, Tajimi Y, Kameda K, Kingwell C, Wcislo W, Osaka K, Yamawaki M, Morita T, Yoshimi Y. Synthesis of 23-, 25-, 27-, and 29-Membered ( Z)-Selective Unsaturated and Saturated Macrocyclic Lactones from 16- and 17-Membered Macrocyclic Lactones and Bromoalcohols by Wittig Reaction, Yamaguchi Macrolactonization, and Photoinduced Decarboxylative Radical Macrolactonization. J Org Chem 2019; 84:8019-8026. [PMID: 31136179 DOI: 10.1021/acs.joc.9b00870] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A new strategy for the synthesis of 23-, 25-, 27-, and 29-membered ( Z)-selective unsaturated and saturated macrocyclic lactones from commercially available 16- and 17-membered macrocyclic lactones and bromoalcohols by Wittig reaction, Yamaguchi macrolactonization, and photoinduced decarboxylative radical macrolactonization is described. The position of the unsaturated part in the macrocyclic lactones can be controlled by changing the number of carbons in the starting materials. This protocol can provide facile access to the desired large-ring ( Z)-selective unsaturated and saturated macrocyclic lactones from simple starting materials.
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Affiliation(s)
- Tomoya Iwasaki
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
| | - Yuka Tajimi
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
| | - Kenta Kameda
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
| | - Callum Kingwell
- Department of Neurobiology and Behavior , Cornell University , Ithaca , New York 14853 , United States.,Smithsonian Tropical Research Institute , Luis Clement Avenue, Building 401 Tupper , Balboa Ancon, Panama 0843-03092 , Republic of Panama
| | - William Wcislo
- Smithsonian Tropical Research Institute , Luis Clement Avenue, Building 401 Tupper , Balboa Ancon, Panama 0843-03092 , Republic of Panama
| | - Kazuyuki Osaka
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
| | - Mugen Yamawaki
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
| | - Toshio Morita
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
| | - Yasuharu Yoshimi
- Department of Applied Chemistry and Biotechnology, Graduate School of Engineering , University of Fukui , 3-9-1 Bunkyo , Fukui 910-8507 , Japan
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42
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Horváth A, Depré D, A Vermeulen WA, Wuyts SL, Harutyunyan SR, Binot G, Cuypers J, Couck W, Den Heuvel DV. Ring-Closing Metathesis on Commercial Scale: Synthesis of HCV Protease Inhibitor Simeprevir. J Org Chem 2019; 84:4932-4939. [PMID: 30721066 DOI: 10.1021/acs.joc.8b03124] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The key macrocyclization step in the synthesis of simeprevir, a hepatitis C virus (HCV) antiviral drug, was studied. N-Boc substitution on the diene precursor changes the site of insertion of the metathesis catalyst and, consequently, the kinetic model of the ring closing metathesis (RCM), enabling a further increase in the macrocyclization efficiency under simulated high dilution (SHD) conditions. NMR of the inserted species of both first and second generation RCM catalysts are reported and discussed.
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Affiliation(s)
- András Horváth
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
| | - Dominique Depré
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
| | - Wim A A Vermeulen
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
| | - Stijn L Wuyts
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
| | | | - Grégori Binot
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
| | - Jef Cuypers
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
| | - Wouter Couck
- Janssen Pharmaceutica N.V. , 30 Turnhoutseweg , B-2340 Beerse , Belgium
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43
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Kotha S, Aswar VR, Ansari S. Selectivity in Ring‐Closing Metathesis: Synthesis of Propellanes and Angular Aza‐tricycles. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201801123] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Sambasivarao Kotha
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai- 400 076 India
| | - Vikas R. Aswar
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai- 400 076 India
| | - Saima Ansari
- Department of ChemistryIndian Institute of Technology Bombay, Powai Mumbai- 400 076 India
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44
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Morin É, Sosoe J, Raymond M, Amorelli B, Boden RM, Collins SK. Synthesis of a Renewable Macrocyclic Musk: Evaluation of Batch, Microwave, and Continuous Flow Strategies. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00450] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Émilie Morin
- Department of Chemistry and Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Johann Sosoe
- Department of Chemistry and Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Michaël Raymond
- Department of Chemistry and Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
| | - Benjamin Amorelli
- Research & Development, International Flavors & Fragrances Inc., 1515 State Route 36, Union Beach, New Jersey 07735, United States
| | - Richard M. Boden
- Research & Development, International Flavors & Fragrances Inc., 1515 State Route 36, Union Beach, New Jersey 07735, United States
| | - Shawn K. Collins
- Department of Chemistry and Centre for Green Chemistry and Catalysis, Université de Montréal, CP 6128 Station Downtown, Montréal, Québec, Canada H3C 3J7
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45
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Smoleń M, Marczyk A, Kośnik W, Trzaskowski B, Kajetanowicz A, Grela K. Ruthenium‐Catalysed Olefin Metathesis in Environmentally Friendly Solvents: 2‐Methyltetrahydrofuran Revisited. European J Org Chem 2019. [DOI: 10.1002/ejoc.201801741] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Michał Smoleń
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02‐089 Warsaw Poland
| | - Anna Marczyk
- Faculty of Chemistry Centre of New Technologies, University of Warsaw S. Banacha 2c 02‐097 Warszawa Poland
| | - Wioletta Kośnik
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02‐089 Warsaw Poland
| | - Bartosz Trzaskowski
- Faculty of Chemistry Centre of New Technologies, University of Warsaw S. Banacha 2c 02‐097 Warszawa Poland
| | - Anna Kajetanowicz
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02‐089 Warsaw Poland
| | - Karol Grela
- Biological and Chemical Research Centre Faculty of Chemistry University of Warsaw Żwirki i Wigury 101 02‐089 Warsaw Poland
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46
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Dumas A, Colombel-Rouen S, Curbet I, Forcher G, Tripoteau F, Caijo F, Queval P, Rouen M, Baslé O, Mauduit M. Highly selective macrocyclic ring-closing metathesis of terminal olefins in non-chlorinated solvents at low dilution. Catal Sci Technol 2019. [DOI: 10.1039/c8cy02115e] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
New ruthenium complexes featuring two unsymmetrical NHCs proved to be highly selective in macrocyclic RCM performed in green solvents at low dilution.
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Affiliation(s)
- Adrien Dumas
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- F-35000 Rennes
- France
| | | | - Idriss Curbet
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- F-35000 Rennes
- France
| | - Gwénael Forcher
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- F-35000 Rennes
- France
| | | | | | | | | | - Olivier Baslé
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- F-35000 Rennes
- France
| | - Marc Mauduit
- Univ Rennes
- Ecole Nationale Supérieure de Chimie de Rennes
- CNRS
- F-35000 Rennes
- France
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47
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Wyrębek P, Małecki P, Sytniczuk A, Kośnik W, Gawin A, Kostrzewa J, Kajetanowicz A, Grela K. Looking for the Noncyclic(amino)(alkyl)carbene Ruthenium Catalyst for Ethenolysis of Ethyl Oleate: Selectivity Is on Target. ACS OMEGA 2018; 3:18481-18488. [PMID: 31458420 PMCID: PMC6643780 DOI: 10.1021/acsomega.8b03119] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 12/12/2018] [Indexed: 06/10/2023]
Abstract
A wide set of 65 diverse Ru metathesis catalysts was investigated in the ethenolysis reaction of biosourced ethyl oleate to allow the comparison between the catalyst structure and its activity and selectivity. Handling of the oleic substrate, weighing of the catalysts, and charging the reactor were done in air, with exclusion of a glovebox or Schlenk techniques. A catalyst bearing the unsymmetrical N-heterocyclic ligand featuring a thiophene fragment (Ru-63) was selected to offer the best combination between high selectivity and sufficient activity under conditions mimicking oil industry practice. A proof-of-concept large-scale ethenolysis experiment was also done with the selected catalyst to prove its high selectivity at the 1 L scale reaction with a 90% pure non-distilled substrate.
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Affiliation(s)
- Przemysław Wyrębek
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Paweł Małecki
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Adrian Sytniczuk
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Wioletta Kośnik
- Biological
and Chemical Research Centre, Faculty of Chemistry, University of Warsaw, Żwirki i Wigury Street 101, 02-089 Warsaw, Poland
| | - Anna Gawin
- 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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48
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Ferreira LA, Sokolovicz YC, Couto JL, Schrekker HS. Tandem olefin isomerization/metathesis and volatiles capture: Accessing light olefin blends and broadening the scope to higher olefins. MOLECULAR CATALYSIS 2018. [DOI: 10.1016/j.mcat.2018.09.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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49
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Wu N, Petsalakis ID, Theodorakopoulos G, Yu Y, Rebek J. Cavitands as Containers for α,ω‐Dienes and Chaperones for Olefin Metathesis. Angew Chem Int Ed Engl 2018; 57:15091-15095. [DOI: 10.1002/anie.201808265] [Citation(s) in RCA: 32] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 09/09/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Nai‐Wei Wu
- Center for Supramolecular and Catalytic Chemistry and Department of ChemistryShanghai University 99 Shang-Da Road Shanghai 200444 China
| | - Ioannis D. Petsalakis
- Theoretical and Physical Chemistry InstituteNational Hellenic Research Foundation 48 Vassileos Constantinou Ave. Athens 116 35 Greece
| | - Giannoula Theodorakopoulos
- Theoretical and Physical Chemistry InstituteNational Hellenic Research Foundation 48 Vassileos Constantinou Ave. Athens 116 35 Greece
| | - Yang Yu
- Center for Supramolecular and Catalytic Chemistry and Department of ChemistryShanghai University 99 Shang-Da Road Shanghai 200444 China
| | - Julius Rebek
- Center for Supramolecular and Catalytic Chemistry and Department of ChemistryShanghai University 99 Shang-Da Road Shanghai 200444 China
- The Skaggs Institute for Chemical Biology and Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
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50
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Wu N, Petsalakis ID, Theodorakopoulos G, Yu Y, Rebek J. Cavitands as Containers for α,ω‐Dienes and Chaperones for Olefin Metathesis. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808265] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nai‐Wei Wu
- Center for Supramolecular and Catalytic Chemistry and Department of ChemistryShanghai University 99 Shang-Da Road Shanghai 200444 China
| | - Ioannis D. Petsalakis
- Theoretical and Physical Chemistry InstituteNational Hellenic Research Foundation 48 Vassileos Constantinou Ave. Athens 116 35 Greece
| | - Giannoula Theodorakopoulos
- Theoretical and Physical Chemistry InstituteNational Hellenic Research Foundation 48 Vassileos Constantinou Ave. Athens 116 35 Greece
| | - Yang Yu
- Center for Supramolecular and Catalytic Chemistry and Department of ChemistryShanghai University 99 Shang-Da Road Shanghai 200444 China
| | - Julius Rebek
- Center for Supramolecular and Catalytic Chemistry and Department of ChemistryShanghai University 99 Shang-Da Road Shanghai 200444 China
- The Skaggs Institute for Chemical Biology and Department of ChemistryThe Scripps Research Institute 10550 North Torrey Pines Road La Jolla California 92037 USA
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