1
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Herrmann L, Leidenberger M, Quadros HC, Grau BW, Hampel F, Friedrich O, Moreira DRM, Kappes B, Tsogoeva SB. Access to Artemisinin-Triazole Antimalarials via Organo-Click Reaction: High In Vitro/ In Vivo Activity against Multi-Drug-Resistant Malaria Parasites. JACS AU 2024; 4:951-957. [PMID: 38559731 PMCID: PMC10976565 DOI: 10.1021/jacsau.3c00716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/09/2024] [Accepted: 01/23/2024] [Indexed: 04/04/2024]
Abstract
Malaria is one of the most widespread diseases worldwide. Besides a growing number of people potentially threatened by malaria, the consistent emergence of resistance against established antimalarial pharmaceuticals leads to an urge toward new antimalarial drugs. Hybridization of two chemically diverse compounds into a new bioactive product is a successful concept to improve the properties of a hybrid drug relative to the parent compounds and also to overcome multidrug resistance. 1,2,3-Triazoles are a significant pharmacophore system among nitrogen-containing heterocycles with various applications, such as antiviral, antimalarial, antibacterial, and anticancer agents. Several marketed drugs possess these versatile moieties, which are used in a wide range of medical indications. While the synthesis of hybrid compounds containing a 1,2,3-triazole unit was described using Cu- and Ru-catalyzed azide-alkyne cycloaddition, an alternative metal-free pathway has never been reported for the synthesis of antimalarial hybrids. However, a metal-free pathway is a green method that allows toxic and expensive metals to be replaced with an organocatalyst. Herein, we present the synthesis of new artemisinin-triazole antimalarial hybrids via a facile Ramachary-Bressy-Wang organocatalyzed azide-carbonyl [3 + 2] cycloaddition (organo-click) reaction. The prepared new hybrid compounds are highly potent in vitro against chloroquine (CQ)-resistant and multi-drug-resistant Plasmodium falciparum strains (IC50 (Dd2) down to 2.1 nM; IC50 (K1) down to 1.8 nM) compared to CQ (IC50 (Dd2) = 165.3 nM; IC50 (K1) = 302.8 nM). Moreover, the most potent hybrid drug was more efficacious in suppressing parasitemia and extending animal survival in Plasmodium berghei-infected mice (up to 100% animal survival and up to 40 days of survival time) than the reference drug artemisinin, illustrating the potential of the hybridization concept as an alternative and powerful drug-discovery approach.
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Affiliation(s)
- Lars Herrmann
- Department
of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary
Center for Molecular Materials (ICMM), Friedrich-Alexander-University
Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Maria Leidenberger
- Institute
of Medical Biotechnology, Friedrich-Alexander-University
Erlangen-Nürnberg, Paul-Gordon-Straße 3, 91052 Erlangen, Germany
| | | | - Benedikt W. Grau
- Department
of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary
Center for Molecular Materials (ICMM), Friedrich-Alexander-University
Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Frank Hampel
- Department
of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary
Center for Molecular Materials (ICMM), Friedrich-Alexander-University
Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058 Erlangen, Germany
| | - Oliver Friedrich
- Institute
of Medical Biotechnology, Friedrich-Alexander-University
Erlangen-Nürnberg, Paul-Gordon-Straße 3, 91052 Erlangen, Germany
| | | | - Barbara Kappes
- Institute
of Medical Biotechnology, Friedrich-Alexander-University
Erlangen-Nürnberg, Paul-Gordon-Straße 3, 91052 Erlangen, Germany
| | - Svetlana B. Tsogoeva
- Department
of Chemistry and Pharmacy, Organic Chemistry Chair I and Interdisciplinary
Center for Molecular Materials (ICMM), Friedrich-Alexander-University
Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058 Erlangen, Germany
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2
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Herrmann L, Hahn F, Grau BW, Wild M, Niesar A, Wangen C, Kataev E, Marschall M, Tsogoeva SB. Autofluorescent Artemisinin-Benzimidazole Hybrids via Organo-Click Reaction: Study of Antiviral Properties and Mode of Action in Living Cells. Chemistry 2023; 29:e202301194. [PMID: 37267160 DOI: 10.1002/chem.202301194] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/31/2023] [Accepted: 06/02/2023] [Indexed: 06/04/2023]
Abstract
Drug modification by a fluorescent label is a common tool for studying its mechanism of action with fluorescence microscopy techniques. However, the attachment of a fluorescent label can significantly alter the polarity, solubility, and biological activity of the investigated drug, and, as a result, the studied mechanism of action can be misrepresented. Therefore, developing efficient drugs, which are inherently fluorescent and can be tracked directly in the cell is highly favorable. Here an easy formation of fluorescent hybrid drugs is presented, generated by a combination of two readily available non-fluorescent pharmacophores via a non-cleavable linker using a Ramachary-Bressy-Wang organocatalyzed azide-carbonyl [3+2] cycloaddition (organo-click) reaction. All newly prepared fluorescent compounds showed strong anti-HCMV activity (EC50 down to 0.07±0.00 μM), thus presenting a very promising drug developmental basis compared to the approved drug ganciclovir (EC50 2.60±0.50 μM). Remarkably, in vitro fluorescent imaging investigation of new compounds revealed induced changes in mitochondrial structures, which is a phenotypical hallmark of antiviral activity. This approach opens up new vistas for the easy formation of potent fluorescent drugs from readily available non-fluorescent parent compounds and might facilitate insight into their mode of action in living cells, avoiding the requirement of linkage to external fluorescent markers.
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Affiliation(s)
- Lars Herrmann
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058, Erlangen, Germany
| | - Friedrich Hahn
- Institute for Clinical and Molecular Virology, Friedrich-Alexander-Universität Erlangen-Nürnberg Department, Schlossgarten 4, 91054, Erlangen, Germany
| | - Benedikt W Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058, Erlangen, Germany
| | - Markus Wild
- Institute for Clinical and Molecular Virology, Friedrich-Alexander-Universität Erlangen-Nürnberg Department, Schlossgarten 4, 91054, Erlangen, Germany
| | - Aischa Niesar
- Institute for Clinical and Molecular Virology, Friedrich-Alexander-Universität Erlangen-Nürnberg Department, Schlossgarten 4, 91054, Erlangen, Germany
| | - Christina Wangen
- Institute for Clinical and Molecular Virology, Friedrich-Alexander-Universität Erlangen-Nürnberg Department, Schlossgarten 4, 91054, Erlangen, Germany
| | - Evgeny Kataev
- Organic Chemistry Chair II, Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058, Erlangen, Germany
| | - Manfred Marschall
- Institute for Clinical and Molecular Virology, Friedrich-Alexander-Universität Erlangen-Nürnberg Department, Schlossgarten 4, 91054, Erlangen, Germany
| | - Svetlana B Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-Universität Erlangen-Nürnberg, Nikolaus Fiebiger-Straße 10, 91058, Erlangen, Germany
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3
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Bhajammanavar V, Sureshbabu P, Reddy MK, Baidya M. Organocatalyzed Modular Synthesis of Polycyclic Dihydropyridines and Pyridines through Sulfamate Linchpin. Chem Asian J 2022; 17:e202200400. [PMID: 35575143 DOI: 10.1002/asia.202200400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/15/2022] [Indexed: 11/09/2022]
Abstract
The cascade annulation between alkylidene malononitriles and cyclic sulfamidate imines has been controlled by leveraging the sulfamate functionality under organocatalysis, which allows selective access to polycyclic and densely functionalized dihydropyridines and pyridines in high yields. The protocol is scalable and shows broad substrate scope. The products were also engaged in the preparation of tetracyclic pyridopyrimidines, showcasing the synthetic versatility.
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Affiliation(s)
| | | | | | - Mahiuddin Baidya
- Indian Institute of Technology Madras, Chemistry, IIT Madras, India, Chennai, India, 600036, Chennai, INDIA
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4
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Grau BW, Dill M, Hampel F, Kahnt A, Jux N, Tsogoeva SB. Four‐Step Domino Reaction Enables Fully Controlled Non‐Statistical Synthesis of Hexaarylbenzene with Six Different Aryl Groups**. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202104437] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Benedikt W. Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Maximilian Dill
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Frank Hampel
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Axel Kahnt
- Leibniz Institute of Surface Engineering (IOM) Permoserstr. 15 04318 Leipzig Germany
| | - Norbert Jux
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
| | - Svetlana B. Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM) Friedrich-Alexander University of Erlangen-Nürnberg Nikolaus Fiebiger-Straße 10 91058 Erlangen Germany
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5
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Grau BW, Dill M, Hampel F, Kahnt A, Jux N, Tsogoeva SB. Four-Step Domino Reaction Enables Fully Controlled Non-Statistical Synthesis of Hexaarylbenzene with Six Different Aryl Groups*. Angew Chem Int Ed Engl 2021; 60:22307-22314. [PMID: 34060211 PMCID: PMC8518863 DOI: 10.1002/anie.202104437] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 05/30/2021] [Indexed: 12/11/2022]
Abstract
Hexaarylbenzene (HAB) derivatives are versatile aromatic systems playing a significant role as chromophores, liquid crystalline materials, molecular receptors, molecular-scale devices, organic light-emitting diodes and candidates for organic electronics. Statistical synthesis of simple symmetrical HABs is known via cyclotrimerization or Diels-Alder reactions. By contrast, the synthesis of more complex, asymmetrical systems, and without involvement of statistical steps, remains an unsolved problem. Here we present a generally applicable synthetic strategy to access asymmetrical HAB via an atom-economical and high-yielding metal-free four-step domino reaction using nitrostyrenes and α,α-dicyanoolefins as easily available starting materials. Resulting domino product-functionalized triarylbenzene (TAB)-can be used as a key starting compound to furnish asymmetrically substituted hexaarylbenzenes in high overall yield and without involvement of statistical steps. This straightforward domino process represents a distinct approach to create diverse and still unexplored HAB scaffolds, containing six different aromatic rings around central benzene core.
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Affiliation(s)
- Benedikt W. Grau
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Maximilian Dill
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Frank Hampel
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Axel Kahnt
- Leibniz Institute of Surface Engineering (IOM)Permoserstr. 1504318LeipzigGermany
| | - Norbert Jux
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
| | - Svetlana B. Tsogoeva
- Organic Chemistry Chair I and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander University of Erlangen-NürnbergNikolaus Fiebiger-Straße 1091058ErlangenGermany
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6
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Curti C, Battistini L, Sartori A, Zanardi F. New Developments of the Principle of Vinylogy as Applied to π-Extended Enolate-Type Donor Systems. Chem Rev 2020; 120:2448-2612. [PMID: 32040305 PMCID: PMC7993750 DOI: 10.1021/acs.chemrev.9b00481] [Citation(s) in RCA: 102] [Impact Index Per Article: 25.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Indexed: 12/19/2022]
Abstract
The principle of vinylogy states that the electronic effects of a functional group in a molecule are possibly transmitted to a distal position through interposed conjugated multiple bonds. As an emblematic case, the nucleophilic character of a π-extended enolate-type chain system may be relayed from the legitimate α-site to the vinylogous γ, ε, ..., ω remote carbon sites along the chain, provided that suitable HOMO-raising strategies are adopted to transform the unsaturated pronucleophilic precursors into the reactive polyenolate species. On the other hand, when "unnatural" carbonyl ipso-sites are activated as nucleophiles (umpolung), vinylogation extends the nucleophilic character to "unnatural" β, δ, ... remote sites. Merging the principle of vinylogy with activation modalities and concepts such as iminium ion/enamine organocatalysis, NHC-organocatalysis, cooperative organo/metal catalysis, bifunctional organocatalysis, dicyanoalkylidene activation, and organocascade reactions represents an impressive step forward for all vinylogous transformations. This review article celebrates this evolutionary progress, by collecting, comparing, and critically describing the achievements made over the nine year period 2010-2018, in the generation of vinylogous enolate-type donor substrates and their use in chemical synthesis.
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Affiliation(s)
| | | | | | - Franca Zanardi
- Dipartimento di Scienze degli
Alimenti e del Farmaco, Università
di Parma, Parco Area delle Scienze 27A, 43124 Parma, Italy
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7
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Wan Q, Li S, Kang Q, Yuan Y, Du Y. Chiral-at-Metal Rh(III) Complex Catalyzed Cascade Reduction-Michael Addition Reaction. J Org Chem 2019; 84:15201-15211. [PMID: 31661265 DOI: 10.1021/acs.joc.9b02243] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
An enantioselective three-component cascade reduction-Michael addition reaction catalyzed by chiral-at-metal Rh(III) complexes has been developed. With a Hantzsch ester as the hydride source, a number of malononitrile derivatives were prepared in good yields and excellent enantioselectivities. A model that accounts for the origin and influence factors of the stereoselectivity has been proposed based on experiments.
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Affiliation(s)
- Qian Wan
- College of Chemistry , Fuzhou University , Fuzhou 350108 , P. R. China
| | - Shiwu Li
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou 350002 , P. R. China
| | - Qiang Kang
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou 350002 , P. R. China
| | - Yaofeng Yuan
- College of Chemistry , Fuzhou University , Fuzhou 350108 , P. R. China
| | - Yu Du
- Key Laboratory of Coal to Ethylene Glycol and Its Related Technology, Center for Excellence in Molecular Synthesis , Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , 155 Yangqiao Road West , Fuzhou 350002 , P. R. China
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8
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Bhajammanavar V, Mallik S, Baidya M. Vinylogous Annulation Cascade Toward Stereoselective Synthesis of Highly Functionalized Indanone Derivatives. Adv Synth Catal 2019. [DOI: 10.1002/adsc.201900860] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Vinod Bhajammanavar
- Department of ChemistryIndian Institute of Technology Madras Chennai 600 036, Tamil Nadu India
| | - Sumitava Mallik
- Department of ChemistryIndian Institute of Technology Madras Chennai 600 036, Tamil Nadu India
| | - Mahiuddin Baidya
- Department of ChemistryIndian Institute of Technology Madras Chennai 600 036, Tamil Nadu India
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9
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Grau BW, Bönisch S, Neuhauser A, Hampel F, Görling A, Tsogoeva SB. Facile Access to Challenging
ortho
‐Terphenyls via Merging Two Multi‐Step Domino Reactions in One‐Pot: A Joint Experimental/Theoretical Study. ChemCatChem 2019. [DOI: 10.1002/cctc.201900746] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Benedikt W. Grau
- Institute of Organic Chemistry and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Straße 10 91058 Erlangen Germany
| | - Simon Bönisch
- Chair of Theoretical Chemistry and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstraße 3 91058 Erlangen Germany
| | - Alexander Neuhauser
- Institute of Organic Chemistry and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Straße 10 91058 Erlangen Germany
| | - Frank Hampel
- Institute of Organic Chemistry and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Straße 10 91058 Erlangen Germany
| | - Andreas Görling
- Chair of Theoretical Chemistry and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Egerlandstraße 3 91058 Erlangen Germany
| | - Svetlana B. Tsogoeva
- Institute of Organic Chemistry and Interdisciplinary Center for Molecular Materials (ICMM)Friedrich-Alexander-Universität Erlangen-Nürnberg Nikolaus-Fiebiger-Straße 10 91058 Erlangen Germany
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10
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Koszelewski D, Ostaszewski R. Enzyme Promiscuity as a Remedy for the Common Problems with Knoevenagel Condensation. Chemistry 2019; 25:10156-10164. [DOI: 10.1002/chem.201901491] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2019] [Revised: 05/24/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Dominik Koszelewski
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
| | - Ryszard Ostaszewski
- Institute of Organic ChemistryPolish Academy of Sciences Kasprzaka 44/52 01-224 Warsaw Poland
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11
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Haas CP, Tallarek U. Kinetics Studies on a Multicomponent Knoevenagel-Michael Domino Reaction by an Automated Flow Reactor. ChemistryOpen 2019; 8:606-614. [PMID: 31110932 PMCID: PMC6511915 DOI: 10.1002/open.201900124] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Indexed: 12/13/2022] Open
Abstract
The optimization of complex chemical reaction systems is often a troublesome and time‐consuming process. The application of modern technologies, including automated reactors and analytics, opens the avenue for generating large data sets on chemical reaction processes in a short period of time. In this work, an automated flow reactor is used to present detailed kinetics and mechanistic studies about an amine‐catalyzed Knoevenagel−Michael domino reaction to yield tetrahydrochromene derivatives. High‐performance monoliths as catalyst supports and online coupled HPLC analysis allow for time‐efficient data generation. We show that the two‐step multicomponent domino reaction does not follow the kinetics of consecutive reaction steps proceeding independently from each other. Instead, the starting materials of both individual reactions compete for the active sites on the heterogeneous catalyst, which lowers the rate constants of both steps. This knowledge was used to implement a more efficient experimental setup which increased the turnover numbers of the catalyst, without adjusting common reaction parameters like temperature, reaction time, and concentrations.
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Affiliation(s)
- Christian P Haas
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Strasse 4 D-35032 Marburg Germany
| | - Ulrich Tallarek
- Department of Chemistry Philipps-Universität Marburg Hans-Meerwein-Strasse 4 D-35032 Marburg Germany
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12
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Vivekanand T, Vachan BS, Karuppasamy M, Muthukrishnan I, Maheswari CU, Nagarajan S, Bhuvanesh N, Sridharan V. Diastereoselective ABB' Three-Component Synthesis of Highly Functionalized Spirooxindoles Bearing Five Consecutive Asymmetric Carbons. J Org Chem 2019; 84:4009-4016. [PMID: 30869516 DOI: 10.1021/acs.joc.8b03270] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The synthesis of spirooxindoles bearing tetrahydro-4 H-cyclopenta[ b]furan framework was established starting from isatin-derived aldehydes and 2 equiv of 1,3-dicarbonyl compounds involving a piperidine-catalyzed ABB' three-component domino process. This reaction was highly diastereoselective affording a single diastereomer of spirooxindoles with five consecutive asymmetric carbons including spiro and tetrasubstituted carbon centers. In addition, this waste-free (-2H2O) reaction showed high atom economy and step economy by creating four new bonds, including three C-C bonds and one C-O bond, and two rings (one carbo- and one heterocyclic) in a single operation. The mechanism of this three-component domino process involved sequential Knoevenagel condensation-Michael addition-intramolecular oxa-Michael addition-intramolecular aldol reactions.
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Affiliation(s)
- Thavaraj Vivekanand
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur 613401 , Tamil Nadu , India
| | - B S Vachan
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur 613401 , Tamil Nadu , India
| | - Muthu Karuppasamy
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur 613401 , Tamil Nadu , India
| | - Isravel Muthukrishnan
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur 613401 , Tamil Nadu , India
| | - C Uma Maheswari
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur 613401 , Tamil Nadu , India
| | - Subbiah Nagarajan
- Department of Chemistry , National Institute of Technology , Warangal 506004 , Telangana , India
| | - Nattamai Bhuvanesh
- Department of Chemistry , Texas A & M University , College Station , Texas 77843 , United States
| | - Vellaisamy Sridharan
- Department of Chemistry, School of Chemical and Biotechnology , SASTRA Deemed University , Thanjavur 613401 , Tamil Nadu , India.,Department of Chemistry and Chemical Sciences , Central University of Jammu , Rahya-Suchani (Bagla) , Samba-District, Jammu 181143 , J&K , India
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13
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Zhang X, Wang TL, Liu XJ, Wang XC, Quan ZJ. The solvent-controlled chemoselective construction of C–S/S–S bonds via the Michael reaction/thiol coupling of quinoline-2-thiones. Org Biomol Chem 2019; 17:2379-2383. [DOI: 10.1039/c8ob02971g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The solvent-controlled selective construction of C–S and S–S bonds containing a quinoline skeleton under mild conditions from quinoline-2-thiones has been reported.
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Affiliation(s)
- Xi Zhang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Tong-Lin Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Xiao-Jun Liu
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Xi-Cun Wang
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
| | - Zheng-Jun Quan
- Gansu International Scientific and Technological Cooperation Base of Water-Retention Chemical Functional Materials
- College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- People's Republic of China
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14
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Prieto-Ramírez MC, Fernández I, da Silva I, González-Platas J, de Armas P, García-Tellado F. Stereodiversified Modular Synthesis of Non-planar Five-Membered Cyclic N
-Hydroxylamidines: Reactivity Study and Application to the Synthesis of Cyclic Amidines. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800749] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Mary Cruz Prieto-Ramírez
- Instituto de Productos Naturales y Agrobiología-CSIC; Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
| | - Israel Fernández
- Departamento de Química Orgánica I y Centro de Innovación en Química Avanzada (ORFEO-CINQA); Facultad de Ciencias Químicas, Universidad Complutense; 28040 Madrid Spain
| | - Ivan da Silva
- ISIS Facility; STFC Rutherford Appleton Laboratory; Chilton, Oxfordshire OX11 0QX UK
| | - Javier González-Platas
- Servicio de Difracción de Rayos X, Departamento de Física; Universidad de La Laguna; Astrofísico Francisco Sánchez 2 38204 La Laguna Spain
| | - Pedro de Armas
- Instituto de Productos Naturales y Agrobiología-CSIC; Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
| | - Fernando García-Tellado
- Instituto de Productos Naturales y Agrobiología-CSIC; Astrofísico Francisco Sánchez 3 38206 La Laguna Spain
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