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Shrestha KK, Hilyard MA, Alahakoon I, Young MC. Combining iminium and supramolecular catalysis for the [4 + 2] cycloaddition of E-cinnamaldehydes. Org Biomol Chem 2022; 20:6646-6653. [PMID: 35938223 PMCID: PMC9462845 DOI: 10.1039/d2ob01171a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Herein we describe a method for combining supramolecular catalysis with imininum-based organocatalysis in the Diels-Alder cycloaddition reaction. Both supramolecular host and L-proline are required for the reaction to occur, implying that encapsulation of the substrates and co-catalyst are necessary for the reaction to occur. We explore the substrate scope for a variety of E-cinnamaldehydes and dienes. Finally, we probe the supramolecular assembly processes responsible for the observed catalysis using NMR spectroscopic methods.
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Affiliation(s)
- Kendra K Shrestha
- Department of Chemistry & Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, OH 43606, USA.
| | - Michael A Hilyard
- Department of Chemistry & Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, OH 43606, USA.
| | - Indunil Alahakoon
- Department of Chemistry & Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, OH 43606, USA.
| | - Michael C Young
- Department of Chemistry & Biochemistry, School of Green Chemistry and Engineering, The University of Toledo, 2801 W. Bancroft St., Mailstop 602, Toledo, OH 43606, USA.
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Poole DA, Mathew S, Reek JNH. Just Add Water: Modulating the Structure-Derived Acidity of Catalytic Hexameric Resorcinarene Capsules. J Am Chem Soc 2021; 143:16419-16427. [PMID: 34591465 PMCID: PMC8517980 DOI: 10.1021/jacs.1c04924] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
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The hexameric undecyl-resorcin[4]arene
capsule (C11R6) features eight discrete
structural water molecules located at the vertices of its cubic suprastructure.
Combining NMR spectroscopy with classical molecular dynamics (MD),
we identified and characterized two distinct species of this capsule, C11R6-A and C11R6-B, respectively featuring 8 and 15 water
molecules incorporated into their respective hydrogen-bonded networks.
Furthermore, we found that the ratio of the C11R6-A and C11R6-B found in solution can be modulated by controlling the water content
of the sample. The importance of this supramolecular modulation in C11R6 capsules
is highlighted by its ability to perform acid-catalyzed transformations,
which is an emergent property arising from the hydrogen bonding within
the suprastructure. We show that the conversion of C11R6-A to C11R6-B enhances the catalytic rate of a model Diels–Alder
cyclization by 10-fold, demonstrating the cofactor-derived control
of a supramolecular catalytic process that emulates natural enzymatic
systems.
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Affiliation(s)
- David A Poole
- Homogeneous, Supramolecular, and Bioinspired Catalysis Group, van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam (UvA), Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Simon Mathew
- Homogeneous, Supramolecular, and Bioinspired Catalysis Group, van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam (UvA), Science Park 904, 1098 XH Amsterdam, The Netherlands
| | - Joost N H Reek
- Homogeneous, Supramolecular, and Bioinspired Catalysis Group, van't Hoff Institute for Molecular Science (HIMS), University of Amsterdam (UvA), Science Park 904, 1098 XH Amsterdam, The Netherlands
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3
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Jordan JH, Wishard A, Mague JT, Gibb BC. Binding Properties and Supramolecular Polymerization of a Water-Soluble Resorcin[4]arene. Org Chem Front 2019; 6:1236-1243. [PMID: 31772734 PMCID: PMC6879061 DOI: 10.1039/c9qo00182d] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlling the self-assembly of molecules in water is difficult because the small size, polarity, and hydrogen bond donating and accepting properties of water attenuate most non-covalent interactions. Here we describe how resorcinarene 1, with pyridinium pendent groups, assembles in water to form head-to-tail assemblies. These small supramolecular polymers form because they offer greater stabilization than any latent head-to-head assembly of resorcinarenes to form dimeric (or hexameric) containers. Instead, the resorcinarene bowl - particularly if negatively charged - is a good host for the pyridinium pendent groups of a second resorcinarene. Alternatively, resorcinarene 1 is also a good host for complexing anions and cations of any added salt. In combination therefore, host 1 possesses a rich repertoire of supramolecular properties that is dependent on the ionic strength and the nature of salts, pH, and the concentration of the host. These findings provide new information about controlling the self-assembly of resorcinarenes in water.
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Affiliation(s)
- Jacobs H Jordan
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA,
| | - Anthony Wishard
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA,
| | - Joel T Mague
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA,
| | - Bruce C Gibb
- Department of Chemistry, Tulane University, New Orleans, LA 70118, USA,
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Zhu Y, Rebek Jr J, Yu Y. Cyclizations catalyzed inside a hexameric resorcinarene capsule. Chem Commun (Camb) 2019; 55:3573-3577. [DOI: 10.1039/c9cc01611b] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The self-assembled, hydrogen-bonded hexameric resorcin[4]arene capsule represents one of the most readily accessible host systems for the study of container catalysis.
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Affiliation(s)
- Yujie Zhu
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Julius Rebek Jr
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- College of Science
- Shanghai University
- Shanghai 200444
- China
| | - Yang Yu
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry
- College of Science
- Shanghai University
- Shanghai 200444
- China
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La Manna P, De Rosa M, Talotta C, Gaeta C, Soriente A, Floresta G, Rescifina A, Neri P. The hexameric resorcinarene capsule as an artificial enzyme: ruling the regio and stereochemistry of a 1,3-dipolar cycloaddition between nitrones and unsaturated aldehydes. Org Chem Front 2018. [DOI: 10.1039/c7qo00942a] [Citation(s) in RCA: 46] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hexameric resorcinarene capsule as an artificial enzyme to rule the regio and stereochemistry of a 1,3-dipolar cycloaddition.
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Affiliation(s)
- Pellegrino La Manna
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze del Farmaco
- Università di Catania
- Catania
- Italy
- Dipartimento di Scienze Chimiche
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco
- Università di Catania
- Catania
- Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”
- Università di Salerno
- I-84084 Fisciano
- Italy
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La Sorella G, Sperni L, Strukul G, Scarso A. Supramolecular Activation of Hydrogen Peroxide in the Selective Sulfoxidation of Thioethers by a Self-Assembled Hexameric Capsule. Adv Synth Catal 2016. [DOI: 10.1002/adsc.201600430] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Giorgio La Sorella
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
| | - Laura Sperni
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
| | - Giorgio Strukul
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
| | - Alessandro Scarso
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari di Venezia; via Torino 155 30172 Mestre (VE) Italy
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Caneva T, Sperni L, Strukul G, Scarso A. Efficient epoxide isomerization within a self-assembled hexameric organic capsule. RSC Adv 2016. [DOI: 10.1039/c6ra20271c] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The supramolecular organic nano-capsule formed by the self-assembly of six resorcin[4]arene units efficiently promotes the isomerization of epoxides (Meinwald isomerization) to the corresponding carbonyl compounds.
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Affiliation(s)
- Thomas Caneva
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
| | - Laura Sperni
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
| | - Giorgio Strukul
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
| | - Alessandro Scarso
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari di Venezia
- Mestre (VE)
- 30172 Italy
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8
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La Sorella G, Sperni L, Ballester P, Strukul G, Scarso A. Hydration of aromatic alkynes catalyzed by a self-assembled hexameric organic capsule. Catal Sci Technol 2016. [DOI: 10.1039/c6cy00307a] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The combination of a Brønsted acid catalyst and a supramolecular organic capsule formed by the self-assembly of six resorcin[4]arene units efficiently promotes the mild hydration of aromatic alkynes to their corresponding ketones.
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Affiliation(s)
- Giorgio La Sorella
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari di Venezia
- Mestre Venezia
- ITALY
| | - Laura Sperni
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari di Venezia
- Mestre Venezia
- ITALY
| | - Pablo Ballester
- Institution for Research and Advanced Studies (ICREA) and Institut Català d'Investigació Química (ICIQ)
- The Barcelona Institute of Science and Technology
- Tarragona
- Spain
| | - Giorgio Strukul
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari di Venezia
- Mestre Venezia
- ITALY
| | - Alessandro Scarso
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari di Venezia
- Mestre Venezia
- ITALY
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Giust S, La Sorella G, Sperni L, Fabris F, Strukul G, Scarso A. Supramolecular Catalysis in the Synthesis of Substituted 1 H-Tetrazoles from Isonitriles by a Self-Assembled Hexameric Capsule. ASIAN J ORG CHEM 2015. [DOI: 10.1002/ajoc.201402229] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Catti L, Tiefenbacher K. Intramolecular hydroalkoxylation catalyzed inside a self-assembled cavity of an enzyme-like host structure. Chem Commun (Camb) 2015; 51:892-4. [DOI: 10.1039/c4cc08211g] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Self-assembled resorcin[4]arene hexamer catalyzes the intramolecular hydroalkoxylation of unsaturated alcohols to the corresponding cyclic ethers under mild conditions.
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Affiliation(s)
- L. Catti
- Department Chemie
- Technische Universität München
- D-85747 Garching
- Germany
| | - K. Tiefenbacher
- Department Chemie
- Technische Universität München
- D-85747 Garching
- Germany
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La Sorella G, Sperni L, Strukul G, Scarso A. Supramolecular Encapsulation of Neutral Diazoacetate Esters and Catalyzed 1,3-Dipolar Cycloaddition Reaction by a Self-Assembled Hexameric Capsule. ChemCatChem 2014. [DOI: 10.1002/cctc.201402631] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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12
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Pan J, Zhang B, Jiang X, Zhang L, Cheng Z, Zhu X. Cu(II)-Mediated Atom Transfer Radical Polymerization of Methyl Methacrylate via a Strategy of Thermo-Regulated Phase-Separable Catalysis in a Liquid/Liquid Biphasic System: Homogeneous Catalysis, Facile Heterogeneous Separation, and Recycling. Macromol Rapid Commun 2014; 35:1615-21. [DOI: 10.1002/marc.201400277] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2014] [Revised: 06/25/2014] [Indexed: 12/25/2022]
Affiliation(s)
- Jinlong Pan
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University; Suzhou 215123 China
| | - Bingjie Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University; Suzhou 215123 China
| | - Xiaowu Jiang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University; Suzhou 215123 China
| | - Lifen Zhang
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University; Suzhou 215123 China
| | - Zhenping Cheng
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University; Suzhou 215123 China
| | - Xiulin Zhu
- Suzhou Key Laboratory of Macromolecular Design and Precision Synthesis, Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application; Department of Polymer Science and Engineering, College of Chemistry, Chemical Engineering and Materials Science, Soochow University; Suzhou 215123 China
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