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Ferrino G, De Rosa M, Della Sala P, Gaeta C, Talotta C, Soriente A, Cao Z, Maity B, Cavallo L, Neri P. The Resorcinarene Hexameric Capsule as a Supramolecular Photoacid to Trigger Olefin Hydroarylation in Confined Space. Chemistry 2024; 30:e202303678. [PMID: 38373184 DOI: 10.1002/chem.202303678] [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: 11/06/2023] [Revised: 02/07/2024] [Accepted: 02/19/2024] [Indexed: 02/21/2024]
Abstract
The self-assembled resorcinarene capsule C6 shows remarkable photoacidity upon light irradiation, which is here exploited to catalyze olefin hydroarylation reactions in confined space. An experimental pKa* value range of -3.3--2.8 was estimated for the photo-excited hexameric capsule C6*, and consequently an increase in acidity of 8.8 log units was observed with respect to its ground state (pKa=5.5-6.0). This makes the hexameric capsule the first example of a self-assembled supramolecular photoacid. The photoacid C6* can catalyze hydroarylation reaction of olefins with aromatic substrates inside its cavity, while no reaction occurred between them in the absence of irradiation and/or capsule. DFT calculations corroborated a mechanism in which the photoacidity of C6* plays a crucial role in the protonation step of the aromatic substrate. A further proton transfer to olefin with a concomitant C-C bond formation and a final deprotonation step lead to product releasing.
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Affiliation(s)
- Giuseppina Ferrino
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
| | - Paolo Della Sala
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
| | - Zhen Cao
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, (KCC), Physical Sciences and Engineering Division, Tuwal, 23955-6900, Saudi Arabia
| | - Bholanath Maity
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, (KCC), Physical Sciences and Engineering Division, Tuwal, 23955-6900, Saudi Arabia
| | - Luigi Cavallo
- King Abdullah University of Science and Technology (KAUST), KAUST Catalysis Center, (KCC), Physical Sciences and Engineering Division, Tuwal, 23955-6900, Saudi Arabia
| | - Placido Neri
- Laboratory of Supramolecular Chemistry Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Via Giovanni Paolo II 132, I-84084, Fisciano (Salerno), Italy
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2
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Patamia V, Saccullo E, Zagni C, Tomarchio R, Quattrocchi G, Floresta G, Rescifina A. γ-Cyclodextrins as Supramolecular Reactors for the Three-component Aza-Darzens Reaction in Water. Chemistry 2024; 30:e202303984. [PMID: 38127103 DOI: 10.1002/chem.202303984] [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: 11/29/2023] [Revised: 12/20/2023] [Accepted: 12/21/2023] [Indexed: 12/23/2023]
Abstract
In recent decades, many efforts have been devoted to studying reactions catalyzed in nanoconfined spaces. The most impressive aspect of catalysis in nanoconfined spaces is that the reactivity of the molecules can be smartly driven to disobey classical behavior. A green and efficient three-component aza-Darzens (TCAD) reaction using a catalytic amount of γ-cyclodextrins (CDs) in water has been developed to synthesize N-phenylaziridines. CDs effectively performed this reaction in an environmentally friendly setting, achieving good yields. The same reaction was then performed using polymeric γ-CD such as a γ-cyclodextrin polymer crosslinked (GCDPC) with epichlorohydrin, a sponge-like macroporous γ-cyclodextrin-based cryogel (GCDC), and a γ-cyclodextrin-based hydrogel (GCDH). The homogeneous and heterogeneous catalyst recovery was then studied, and it was proved to be easily recycled several times without relevant activity loss. Water, as a unique and eco-friendly reaction medium, has been utilized for the first time, to the best of our knowledge, in this reaction. The inclusion of the reagents in CDs has been studied and rationalized by NMR spectroscopy experiments and molecular modeling calculations. The credit of the presented protocol includes good yields and catalyst reusability and precludes the use of organic solvents.
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Affiliation(s)
- Vincenzo Patamia
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Erika Saccullo
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
- Department of Biomedical and Biotechnological Sciences (Biometec), University of Catania, Via Santa Sofia 97, 95123, Catania, Italy
| | - Chiara Zagni
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Rosario Tomarchio
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Giuseppe Quattrocchi
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Giuseppe Floresta
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
| | - Antonio Rescifina
- Department of Drug and Health Sciences, University of Catania, Viale Andrea Doria 6, 95125, Catania, Italy
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3
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Schmid D, Li TR, Goldfuss B, Tiefenbacher K. Exploring the Glycosylation Reaction Inside the Resorcin[4]arene Capsule. J Org Chem 2023; 88:14515-14526. [PMID: 37796244 DOI: 10.1021/acs.joc.3c01547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/06/2023]
Abstract
In the past decade, there has been an increased interest in applying supramolecular capsule and cage catalysis to the current challenges in synthetic organic chemistry. In this context, we recently reported the resorcin[4]arene capsule-catalyzed conversion of α-glycosyl halides into β-glycosides with high selectivity. Interestingly, this methodology enabled the formation of a wide range of β-pyranosides as well as β-furanosides, although these two donor classes exhibit different reactivities and usually require different reaction conditions and catalysts. Evidence was provided that a proton wire plays a key role in this reaction by enabling dual activation of the glycosyl donor and acceptor. Here, we describe a detailed investigation of several aspects of this reactivity. Besides a mechanistic study, we elucidated the size limitation, the origin of catalytic turnover, and the electrophile scope of nonglycosylic halides. Moreover, a screening of the sensitivity to changes in the reaction conditions provides guidelines to facilitate reproducibility. Furthermore, we demonstrate the compatibility with environmentally benign solvent alternatives, including the renewable solvent limonene.
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Affiliation(s)
- Dario Schmid
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Tian-Ren Li
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Bernd Goldfuss
- Institut für Organische Chemie, Universität zu Köln, Greinstrasse 4, 50939 Köln, Germany
| | - Konrad Tiefenbacher
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
- Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 24, 4058 Basel, Switzerland
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4
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Kumar P, Mani Kandan VBR, Balakrishnan P, Antharjanam PKS, Parthasarathy V. Leveraging Torsional and Steric Strains: A Pre-macrocyclization Strategy Enables Conformation-Specific Fullerene Binding in m-Cyclophanes. Angew Chem Int Ed Engl 2023; 62:e202305005. [PMID: 37170481 DOI: 10.1002/anie.202305005] [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: 04/09/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/13/2023]
Abstract
Though the chemistry of resorcinarenes is half a century old, the conformationally-locked resorcinarene crowns are generally constructed using hydrogen bonds or covalent tethers. Often, covalent tethering involves extra post-macrocyclization steps involving upper-rim functionalities. We have leveraged the torsional and steric strains through α-substituents of the lower-rim C-alkyl chains and accomplished conformationally-rigid fluorescent m-cyclophane deep-crowns in a predetermined way. The strategy offers a pre-macrocyclization route conserving upper-rim functionalities, an aspect overlooked in resorcinarene chemistry. X-ray structural and computational analyses unveil the cause for conformational rigidity in m-cyclophanes due to α-branching in C-alkyls (linear vs. α-/β-branched). The conformationally-locked fluorescent deep-crown with a preorganized cavity captures hydrophobic spherical guest C60 in both solution and solid states specifically, when compared to conformationally-dynamic boats, enabling conformation-specific binding.
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Affiliation(s)
- Pawan Kumar
- Department of Chemistry, Indian Institute of Technology Madras, 600036, Chennai, Tamil Nadu, India
| | - V B Raja Mani Kandan
- Department of Chemistry, Indian Institute of Technology Madras, 600036, Chennai, Tamil Nadu, India
| | - Prabukumar Balakrishnan
- Department of Chemistry, Indian Institute of Technology Madras, 600036, Chennai, Tamil Nadu, India
| | - P K Sudhadevi Antharjanam
- Sophisticated Analytical Instrument Facility (SAIF), Indian Institute of Technology Madras, 600036, Chennai, Tamil Nadu, India
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5
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Horin I, Slovak S, Cohen Y. Diffusion NMR Reveals the Structures of the Molecular Aggregates of Resorcin[4]arenes and Pyrogallol[4]arenes in Aromatic and Chlorinated Solvents. J Phys Chem Lett 2022; 13:10666-10670. [PMID: 36354303 DOI: 10.1021/acs.jpclett.2c02936] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The hexameric assemblies of resorcinarenes and pyrogallolarenes are fascinating structures that can serve as nanoreactors in which new chemistry and catalysis occur. Recently, it was suggested based on SANS or SAXS that C11-resorcin[4]arene (1) forms octameric aggregates of a micellar rather than capsular structure in toluene. Here, using NMR spectroscopy, diffusion NMR, and DOSY performed on solutions of C11-resorcin[4]arene (1), C11-pyrogallol[4]arene (2), and mixtures thereof in protonated and deuterated solvents, we found that, in benzene and toluene, 1 primarily formed hexameric capsules accompanied by a minor product with diffusion characteristics consistent with an octameric assembly. In chloroform, 1 formed hexameric capsules. In toluene, 2D NMR revealed two populations of encapsulated toluene molecules in the same capsule of 1. The addition of tetrahexylammonium bromide to the assemblies of 1 in aromatic solvents drove the equilibrium toward the formation of the hexameric capsules. Interestingly, 2 formed only hexameric capsules in all solvents tested.
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6
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Ziganshina AY, Mansurova EE, Antipin IS. Colloids Based on Calixresorcins for the Adsorption, Conversion, and Delivery of Bioactive Substances. COLLOID JOURNAL 2022. [DOI: 10.1134/s1061933x22700028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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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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8
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Sokolova D, Piccini G, Tiefenbacher K. Enantioselective Tail-to-Head Terpene Cyclizations by Optically Active Hexameric Resorcin[4]arene Capsule Derivatives. Angew Chem Int Ed Engl 2022; 61:e202203384. [PMID: 35324038 PMCID: PMC9323437 DOI: 10.1002/anie.202203384] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Indexed: 01/01/2023]
Abstract
Molecular capsules enable the conversion of substrates inside a closed cavity, mimicking to some extent enzymatic catalysis. Chirality transfer from the molecular capsule onto the encapsulated substrate has been only studied in a few cases. Here we demonstrate that chirality transfer is possible inside a rather large molecular container of approximately 1400 Å3 . Specifically, we present 1) the first examples of optically active hexameric resorcin[4]arene capsules, 2) their ability to enantioselectively catalyze tail-to-head terpene cyclizations, and 3) the surprisingly high sensitivity of enantioselectivity on the structural modifications.
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Affiliation(s)
- Daria Sokolova
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058, Basel, Switzerland
| | - GiovanniMaria Piccini
- Facoltà di Informatica, Istituto Eulero, Università della Svizzera Italiana (USI), Lugano, Switzerland
| | - Konrad Tiefenbacher
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058, Basel, Switzerland.,Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 26, 4058, Basel, Switzerland
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9
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Sokolova D, Piccini G, Tiefenbacher K. Enantioselective Tail‐to‐Head Terpene Cyclizations by Optically Active Hexameric Resorcin[4]arene Capsule Derivatives. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202203384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Daria Sokolova
- University of Basel: Universitat Basel Chemistry SWITZERLAND
| | - GiovanniMaria Piccini
- Università della Svizzera Italiana: Universita della Svizzera Italiana Informatica SWITZERLAND
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10
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Xu N, Su K, El-Sayed ESM, Ju Z, Yuan D. Chiral proline-substituted porous organic cages in asymmetric organocatalysis. Chem Sci 2022; 13:3582-3588. [PMID: 35432868 PMCID: PMC8943855 DOI: 10.1039/d2sc00395c] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/03/2022] [Indexed: 11/21/2022] Open
Abstract
The efficient preparation of chiral porous organic cages (POCs) with specific functions is challenging, and their application in asymmetric catalysis has not previously been explored. In this work, we have achieved the construction of chiral POCs based on a supramolecular tetraformyl-resorcin[4]arene scaffold with different chiral proline-modified diamine ligands and utilizing dynamic imine chemistry. The incorporation of V-shaped or linear chiral diamines affords the [4 + 8] square prism and [6 + 12] octahedral POCs respectively. The appended chiral proline moieties in such POCs make them highly active supramolecular nanoreactors for asymmetric aldol reactions, delivering up to 92% ee. The spatial distribution of chiral catalytic sites in these two types of POCs greatly affects their catalytic activities and enantioselectivities. This work not only lays a foundation for the asymmetric catalytic application of chiral POCs, but also contributes to our understanding of the catalytic function of biomimetic supramolecular systems. Two calix[4]resorcinarene-based chiral POCs with different self-assembly forms were constructed. The difference in the spatial distribution of chiral organocatalytic sites leads to the two chiral POCs exhibiting distinct stereoselectivities.![]()
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Affiliation(s)
- Ning Xu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 Fujian China
| | - Kongzhao Su
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 Fujian China .,University of the Chinese Academy of Sciences Beijing 100049 China
| | - El-Sayed M El-Sayed
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 Fujian China .,University of the Chinese Academy of Sciences Beijing 100049 China.,Chemical Refining Laboratory, Refining Department, Egyptian Petroleum Research Institute Nasr City 11727 Egypt
| | - Zhanfeng Ju
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 Fujian China
| | - Daqiang Yuan
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou 350002 Fujian China .,University of the Chinese Academy of Sciences Beijing 100049 China.,Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China Fuzhou 350002 Fujian China
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11
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Wang R, Yu Y. Site-selective reactions mediated by molecular containers. Beilstein J Org Chem 2022; 18:309-324. [PMID: 35368585 PMCID: PMC8941319 DOI: 10.3762/bjoc.18.35] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Accepted: 03/04/2022] [Indexed: 11/23/2022] Open
Abstract
In this review, we summarize various site-selective reactions mediated by molecular containers. The emphasis is on those reactions that give different product distributions on the potential reactive sites inside the containers than they do outside, free in solution. Specific cases include site-selective cycloaddition and addition of arenes, reduction of epoxides, α,β-unsaturated aldehydes, azides, halides and alkenes, oxidation of remote C–H bonds and alkenes, and substitution reactions involving ring-opening cyclization of epoxides, nucleophilic substitution of allylic chlorides, and hydrolysis reactions. The product selectivity is interpreted as the consequence of the space shape and environment inside the container. The containers include supramolecular structures self-assembled through metal/ligand interactions or hydrogen bonding and open-ended covalent structures such as cyclodextrins and cavitands. Challenges and prospects for the future are also provided.
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Affiliation(s)
- Rui Wang
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
| | - Yang Yu
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, 99 Shang-Da Road, Shanghai 200444, China
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12
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De Rosa M, Gambaro S, Soriente A, Della Sala P, Iuliano V, Talotta C, Gaeta C, Rescifina A, Neri P. Carbocation catalysis in confined space: activation of trityl chloride inside the hexameric resorcinarene capsule. Chem Sci 2022; 13:8618-8625. [PMID: 35974771 PMCID: PMC9337730 DOI: 10.1039/d2sc02901d] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Accepted: 06/06/2022] [Indexed: 11/21/2022] Open
Abstract
The hexameric resorcinarene capsule is able to promote carbocation catalysis inside its cavity.
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Affiliation(s)
- Margherita De Rosa
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Stefania Gambaro
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Paolo Della Sala
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Veronica Iuliano
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco e della Salute, Università di Catania, viale Andrea Doria, 6, 95125 Catania, Italy
| | - Placido Neri
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084, Fisciano (SALERNO), Italy
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13
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La Manna P, Talotta C, Gaeta C, Cohen Y, Slovak S, Rescifina A, Sala PD, De Rosa M, Soriente A, Neri P. Supramolecular catalysis in confined space: making the pyrogallol[4]arene capsule catalytically active in non-competitive solvent. Org Chem Front 2022. [DOI: 10.1039/d2qo00172a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The confined space inside the hexameric pyrogallol[4]arene capsule (CP6) has been exploited for the catalysis of the 1,3-dipolar cycloaddition (1,3-DC) between the proline-based iminium derivative I and nitrone 3, in the presence of the non-competitive benzene solvent.
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Affiliation(s)
- Pellegrino La Manna
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Yoram Cohen
- School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978 Tel Aviv, Israel
| | - Sarit Slovak
- School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv, 69978 Tel Aviv, Israel
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco e della Salute Università di Catania, Viale Andrea Doria 6, I-95125 Catania, Italy
| | - Paolo Della Sala
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
| | - Placido Neri
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II 132, I-84084 Fisciano (Salerno), Italy
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14
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Poole D, 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: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2021] [Indexed: 12/26/2022]
Abstract
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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15
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Sokolova D, Tiefenbacher K. Optimized iminium-catalysed 1,4-reductions inside the resorcinarene capsule: achieving >90% ee with proline as catalyst. RSC Adv 2021; 11:24607-24612. [PMID: 34354825 PMCID: PMC8278068 DOI: 10.1039/d1ra04333a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 07/05/2021] [Indexed: 11/21/2022] Open
Abstract
In previous work, we demonstrated that iminium-catalysed 1,4-reductions inside the supramolecular resorcinarene capsule display increased enantioselectivities as compared to their regular solution counterparts. Utilizing proline as the chiral catalyst, enantioselectivities remained below 80% ee. In this study, the reaction conditions were optimized by determining the optimal capsule loading and HCl content. Additionally, it was found that alcohol additives increase the enantioselectivity of the capsule-catalysed reaction. As a result, we report enantioselectivities of up to 92% ee for iminium-catalysed 1,4-reductions relying on proline as the sole chiral source. This is of high interest, as proline is unable to deliver high enantioselectivities for 1,4-reductions in a regular solution setting. Investigations into the role of the alcohol additive revealed a dual role: it not only slowed down the background reaction but also increased the capsule-catalysed reaction rate. A supramolecular container enables highly enantioselective iminium chemistry using simple proline as the chiral source.![]()
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Affiliation(s)
- Daria Sokolova
- Department of Chemistry, University of Basel 4058 Basel Switzerland
| | - Konrad Tiefenbacher
- Department of Chemistry, University of Basel 4058 Basel Switzerland .,Department of Biosystems Science and Engineering, ETH Zürich 4058 Basel Switzerland
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16
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Rahman M, Talukder A, Akter R. Computational Designing and Prediction of ADMET Properties of Four Novel Imidazole-Based Drug Candidates Inhibiting Heme Oxygenase-1 Causing Cancers. Mol Inform 2021; 40:e2060033. [PMID: 34241977 DOI: 10.1002/minf.202060033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Accepted: 06/29/2021] [Indexed: 11/07/2022]
Abstract
The overexpression of heme oxygenase-1 (HO-1) contributes to the development of several types of cancers. The inhibition of HO-1 through imidazole-based drugs, which is non-competitive with heme, is a focus of anticancer drug research. We designed the four following novel HO-1 inhibiting compounds: 2-(1-cyclopentyl-4-(1H-imidazol-4-yl)butan-2-yl)pyrazine (M11), 2-[(2-chloro-3-methylcyclohexyl)methyl]-1H-imidazole (M26), 2-(2-phenethyl-1H-imidazol-4-yl)ethanesulfonamide (M28), and 5-chloro-2-[2-(2,5-dihydro-1H-imidazol-2-yl)propan-2-yl]-1H-imidazole (M31). All compounds showed a strong binding affinity with HO-1 in molecular docking studies. The in silico absorption, distribution, metabolism, excretion and toxicity (ADMET) data showed that the compounds would be available orally in an acceptable manner. The bioactivity scores revealed that they were moderately active substances. They were found as non-mutagen, non-tumorigenic, non-irritant, and non-detrimental to the reproductive system. Finally, the drug-likeness values of the compounds were obtained as -0.71, -1.64, -2.04, and 0.4 respectively, with the final drug-score of 0.60, 0.54, 0.51, and 0.77 respectively.
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Affiliation(s)
- Mijanur Rahman
- Department of Microbiology, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Asma Talukder
- Department of Biotechnology and Genetic Engineering, Noakhali Science and Technology University, Noakhali, 3814, Bangladesh
| | - Rekha Akter
- Department of Biochemistry and Molecular Biology, University of Chittagong, Chattogram, 4331, Bangladesh
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17
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Zhang T, Le Corre L, Reinaud O, Colasson B. A Promising Approach for Controlling the Second Coordination Sphere of Biomimetic Metal Complexes: Encapsulation in a Dynamic Hydrogen-Bonded Capsule. Chemistry 2021; 27:434-443. [PMID: 33048410 DOI: 10.1002/chem.202004370] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2020] [Revised: 10/12/2020] [Indexed: 11/09/2022]
Abstract
The design of biomimetic models of metalloenzymes needs to take into account many factors and is therefore a challenging task. We propose in this work an original strategy to control the second coordination sphere of a metal centre and its distal environment. A biomimetic complex, reproducing the first coordination sphere, is encapsulated in a self-assembled hydrogen-bonded capsule. The cationic complex is co-encapsulated with its counter-anion or with solvent molecules. The capsule is dynamic, allowing a fast in/out exchange of the co-encapsulated species. It also provides both a hydrogen-bonding site in the second coordination sphere and a source of proton as it can be deprotonated in the presence of the complex, providing a globally neutral host-guest assembly. This simple and broad scope strategy is unprecedented in biomimetic studies. The approach appears to be a very promising method for the stabilisation of reactive species and for the study of their reactivity.
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Affiliation(s)
- Tongtong Zhang
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| | - Laurent Le Corre
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| | - Olivia Reinaud
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
| | - Benoit Colasson
- Université de Paris, UMR 8601, CNRS, 45 rue des Saints Pères, 75006, Paris, France
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18
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Thakur S, Das A, Das T. 1,3-Dipolar cycloaddition of nitrones: synthesis of multisubstituted, diverse range of heterocyclic compounds. NEW J CHEM 2021. [DOI: 10.1039/d1nj02023d] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The 1,3-dipolar cycloaddition reaction of nitrone is one of the most important methods for the synthesis of different sizes of heterocycles which have enormous applications in natural products, biologically active molecules and pharmaceuticals.
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Affiliation(s)
- Seema Thakur
- Department of Chemistry
- NIT Jamshedpur
- Jamshedpur 831014
- India
| | - Arunima Das
- Department of Chemistry
- NIT Jamshedpur
- Jamshedpur 831014
- India
| | - Tapas Das
- Department of Chemistry
- NIT Jamshedpur
- Jamshedpur 831014
- India
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19
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Gaeta C, La Manna P, De Rosa M, Soriente A, Talotta C, Neri P. Supramolecular Catalysis with Self‐Assembled Capsules and Cages: What Happens in Confined Spaces. ChemCatChem 2020. [DOI: 10.1002/cctc.202001570] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno Via Giovanni Paolo II I 84084 Fisciano, Salerno Italy
| | - Pellegrino La Manna
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno Via Giovanni Paolo II I 84084 Fisciano, Salerno Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno Via Giovanni Paolo II I 84084 Fisciano, Salerno Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno Via Giovanni Paolo II I 84084 Fisciano, Salerno Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno Via Giovanni Paolo II I 84084 Fisciano, Salerno Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno Via Giovanni Paolo II I 84084 Fisciano, Salerno Italy
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20
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Gambaro S, Talotta C, Della Sala P, Soriente A, De Rosa M, Gaeta C, Neri P. Kinetic and Thermodynamic Modulation of Dynamic Imine Libraries Driven by the Hexameric Resorcinarene Capsule. J Am Chem Soc 2020; 142:14914-14923. [PMID: 32786766 PMCID: PMC8010792 DOI: 10.1021/jacs.0c04705] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Indexed: 12/19/2022]
Abstract
The composition of dynamic covalent imine libraries (DCL) adapts to the presence of the hexameric resorcinarene capsule. In the presence of the self-assembled capsule, a kinetic and thermodynamic modulation of the imine constituents of the DCLs was observed, which was induced by an unusual predatory action of the capsule on specific imine constituents. More complex 2 × 2 DCLs also adapt to the presence of the hexameric capsule, showing a thermodynamic and kinetic modulation of the constituents induced by the predatory action of the capsule. By cross-referencing experimental data, a good selectivity (up to 66%) for one constituent can be induced in a 2 × 2 DCL.
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Affiliation(s)
- Stefania Gambaro
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
| | - Carmen Talotta
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
| | - Paolo Della Sala
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
| | - Placido Neri
- Laboratory of Supramolecular
Chemistry, Dipartimento di Chimica e Biologia “A. Zambelli”, Università di Salerno, Via Giovanni Paolo II, I-84084 Fisciano, Salerno, Italy
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21
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Nemat SJ, Jędrzejewska H, Prescimone A, Szumna A, Tiefenbacher K. Catechol[4]arene: The Missing Chiral Member of the Calix[4]arene Family. Org Lett 2020; 22:5506-5510. [PMID: 32627560 DOI: 10.1021/acs.orglett.0c01864] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A missing, inherently chiral member of the calix[4]arene family denoted "catechol[4]arene" was synthesized. Its properties were studied and compared to the ones of its close relatives resorcin[4]arene and pyrogallol[4]arene. This novel supramolecular host exhibits binding capabilities that are superior to its sister molecules in polar media. The enantiomerically pure forms of the macrocycle display modest recognition of chiral ammonium salts.
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Affiliation(s)
- Suren J Nemat
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Hanna Jędrzejewska
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Alessandro Prescimone
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland
| | - Agnieszka Szumna
- Institute of Organic Chemistry Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Konrad Tiefenbacher
- Department of Chemistry, University of Basel, Mattenstrasse 24a, 4058 Basel, Switzerland.,Department of Biosystems Science and Engineering, ETH Zurich, Mattenstrasse 24, 4058 Basel, Switzerland
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22
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Wang K, Jordan JH, Hu X, Wang L. Supramolecular Strategies for Controlling Reactivity within Confined Nanospaces. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202000045] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Kaiya Wang
- School of Material Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211106 China
| | - Jacobs H. Jordan
- The Southern Regional Research Center Agricultural Research Service, USDA New Orleans LA 70124 USA
| | - Xiao‐Yu Hu
- School of Material Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211106 China
| | - Leyong Wang
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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23
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Wang K, Jordan JH, Hu X, Wang L. Supramolecular Strategies for Controlling Reactivity within Confined Nanospaces. Angew Chem Int Ed Engl 2020; 59:13712-13721. [DOI: 10.1002/anie.202000045] [Citation(s) in RCA: 57] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2020] [Indexed: 12/16/2022]
Affiliation(s)
- Kaiya Wang
- School of Material Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211106 China
| | - Jacobs H. Jordan
- The Southern Regional Research Center Agricultural Research Service, USDA New Orleans LA 70124 USA
| | - Xiao‐Yu Hu
- School of Material Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 211106 China
| | - Leyong Wang
- Key Laboratory of Mesoscopic Chemistry of MOE School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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24
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Gentile D, Floresta G, Patamia V, Nicosia A, Mineo PG, Rescifina A. Cucurbit[7]uril as a catalytic nanoreactor for one-pot synthesis of isoxazolidines in water. Org Biomol Chem 2020; 18:1194-1203. [PMID: 31995083 DOI: 10.1039/c9ob02352f] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The main objective of supramolecular chemistry is to mimic the macrosystems present in nature, a goal that fits perfectly with the green chemistry guidelines. The aim of our work is to use the hydrophobic cavity of cucurbit[7]uril (CB[7]) to mimic nature for performing different dehydration and cycloaddition reactions in water. The hydrophobic cavity of CB[7] made it possible to synthesize nitrones and isoxazolidines in a one-pot fashion using water as a reaction solvent. Substituted isoxazolidines were obtained from the cycloaddition of nitrones with various styrenes and cinnamates, under microwave irradiation, with a catalytic amount of CB[7], and a moderate increase in the formation of the trans adduct was observed, compared to the reaction being carried out in toluene. The mechanism of the reaction and the inclusion of reagents and products in the CB[7] cavity have been studied and rationalized by NMR spectroscopy, ESI-MS experiments, and molecular modeling calculations.
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Affiliation(s)
- Davide Gentile
- Dipartimento di Scienze del Farmaco, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy. and Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze del Farmaco, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy.
| | - Vincenzo Patamia
- Dipartimento di Scienze del Farmaco, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy. and Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Angelo Nicosia
- Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy
| | - Placido G Mineo
- Dipartimento di Scienze Chimiche, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy and CNR-IPCB Istituto per i Polimeri, Compositi e Biomateriali, Via P. Gaifami 18, 95126 Catania, Italy and CNR-IPCF Istituto per i Processi Chimico-Fisici, Viale F. Stagno d'Alcontres 37, 98158 Messina, Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco, Università di Catania, Viale Andrea Doria 6, 95125 Catania, Italy. and Consorzio Interuniversitario Nazionale di ricerca in Metodologie e Processi Innovativi di Sintesi (C.I.N.M.P.S.), Via E. Orabona 4, 70125 Bari, Italy
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25
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Affiliation(s)
- Yuliya Razuvayeva
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Ruslan Kashapov
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
| | - Lucia Zakharova
- Arbuzov Institute of Organic and Physical Chemistry, FRC Kazan Scientific Center of RAS, Kazan, Russia
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26
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La Manna P, De Rosa M, Talotta C, Rescifina A, Floresta G, Soriente A, Gaeta C, Neri P. Synergic Interplay Between Halogen Bonding and Hydrogen Bonding in the Activation of a Neutral Substrate in a Nanoconfined Space. Angew Chem Int Ed Engl 2020; 59:811-818. [DOI: 10.1002/anie.201909865] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 10/17/2019] [Indexed: 12/16/2022]
Affiliation(s)
- Pellegrino La Manna
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Carmen Talotta
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del FarmacoUniversità di Catania viale Andrea Doria, 6 95125 Catania Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze del FarmacoUniversità di Catania viale Andrea Doria, 6 95125 Catania Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Placido Neri
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
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27
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Bierschenk SM, Bergman RG, Raymond KN, Toste FD. A Nanovessel-Catalyzed Three-Component Aza-Darzens Reaction. J Am Chem Soc 2020; 142:733-737. [DOI: 10.1021/jacs.9b13177] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Stephen M. Bierschenk
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Robert G. Bergman
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Kenneth N. Raymond
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - F. Dean Toste
- Chemical Sciences Division, Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
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28
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Said AI, El-Emary TI. Diastereoselective synthesis of atropisomeric pyrazolyl pyrrolo[3,4- d]isoxazolidines via pyrazolyl nitrone cycloaddition to facially divergent maleimides: intensive NMR and DFT studies. RSC Adv 2020; 10:845-850. [PMID: 35494462 PMCID: PMC9047523 DOI: 10.1039/c9ra10039c] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2019] [Accepted: 12/16/2019] [Indexed: 11/21/2022] Open
Abstract
A pyrazolyl nitrone (2) underwent 1,3-dipolar cycloadditions to afford some N-substituted maleimides (3a-o). An atropisomeric character was introduced into the formed cycloadducts by using maleimides that have a restricted rotation around the C-N bond. Also, facial selectivity of both endo and exo cycloaddition was observed where the major atropisomer was one that is formed by attacking the nitrone from the less hindered face of the dipolarophile. On the other hand, maleimides with free rotation around the C-N bond led to endo and exo cycloadducts without atropisomerism. The presence of atropisomerism in the formed cycloadducts was confirmed by extensive NMR studies and DFT calculations.
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Affiliation(s)
- Awad I Said
- Chemistry Department, Faculty of Science, Assiut University Assiut Egypt 71516 +20-1012991716
| | - Talaat I El-Emary
- Chemistry Department, Faculty of Science, Assiut University Assiut Egypt 71516 +20-1012991716
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29
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La Manna P, De Rosa M, Talotta C, Rescifina A, Floresta G, Soriente A, Gaeta C, Neri P. Synergic Interplay Between Halogen Bonding and Hydrogen Bonding in the Activation of a Neutral Substrate in a Nanoconfined Space. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909865] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Pellegrino La Manna
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Carmen Talotta
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del FarmacoUniversità di Catania viale Andrea Doria, 6 95125 Catania Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze del FarmacoUniversità di Catania viale Andrea Doria, 6 95125 Catania Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Placido Neri
- Laboratory of Supramolecular ChemistryDipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
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30
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Gambaro S, La Manna P, De Rosa M, Soriente A, Talotta C, Gaeta C, Neri P. The Hexameric Resorcinarene Capsule as a Brønsted Acid Catalyst for the Synthesis of Bis(heteroaryl)methanes in a Nanoconfined Space. Front Chem 2019; 7:687. [PMID: 31696107 PMCID: PMC6817573 DOI: 10.3389/fchem.2019.00687] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 10/04/2019] [Indexed: 11/25/2022] Open
Abstract
Herein, we show that the hexameric resorcinarene capsule C is able to catalyze the formation of bis(heteroaryl)methanes by reaction between pyrroles or indoles and carbonyl compounds (α-ketoesters or aldehydes) in excellent yields and selectivity. Our results suggest that the capsule can play a double catalytic role as a H-bond catalyst, for the initial activation of the carbonyl substrate, and as a Brønsted acid catalyst, for the dehydration of the intermediate alcohol.
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Affiliation(s)
- Stefania Gambaro
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Pellegrino La Manna
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Margherita De Rosa
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Annunziata Soriente
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Carmen Talotta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Carmine Gaeta
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Placido Neri
- Laboratory of Supramolecular Chemistry, Dipartimento di Chimica e Biologia "A. Zambelli", Università degli Studi di Salerno, Salerno, Italy
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31
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Floresta G, Punzo F, Rescifina A. Supramolecular host-guest interactions of pseudoginsenoside F11 with β- and γ-cyclodextrin: Spectroscopic/spectrometric and computational studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2019.05.134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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32
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Zhang Q, Tiefenbacher K. Sesquiterpene Cyclizations inside the Hexameric Resorcinarene Capsule: Total Synthesis of δ‐Selinene and Mechanistic Studies. Angew Chem Int Ed Engl 2019; 58:12688-12695. [DOI: 10.1002/anie.201906753] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Qi Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Konrad Tiefenbacher
- Department of ChemistryUniversity of Basel Postfach 3350, Mattenstrasse 24a 4002 Basel Switzerland
- Department of Biosystems Science and EngineeringETH Zurich Mattenstrasse 26 4058 Basel Switzerland
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33
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Zhang Q, Tiefenbacher K. Sesquiterpene Cyclizations inside the Hexameric Resorcinarene Capsule: Total Synthesis of δ‐Selinene and Mechanistic Studies. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201906753] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Qi Zhang
- Key Laboratory of Green Chemistry and Technology of Ministry of EducationCollege of ChemistrySichuan University 29 Wangjiang Road Chengdu 610064 P. R. China
| | - Konrad Tiefenbacher
- Department of ChemistryUniversity of Basel Postfach 3350, Mattenstrasse 24a 4002 Basel Switzerland
- Department of Biosystems Science and EngineeringETH Zurich Mattenstrasse 26 4058 Basel Switzerland
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Abstract
In the last decades, supramolecular chemists have developed new molecular receptors able to include a wide range of guests. In addition, they have designed synthetic hosts able to form capsules having an internal volume of thousands of Å3. This inner space shows different features from the bulk solution. In particular, this environment has recently been employed to perform chemical reactions, obtaining reaction products different from the “normal” conditions. These supramolecular capsules act as nanoreactors, catalyzing many chemical transformations. This review collects the recent developments (since 2015) in this field, focusing on supramolecular capsules based on resorcinarene hexameric capsules and metal-cage capsules.
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35
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La Manna P, Soriente A, De Rosa M, Buonerba A, Talotta C, Gaeta C, Neri P. Green, Mild, and Efficient Friedel-Crafts Benzylation of Scarcely Reactive Arenes and Heteroarenes under On-Water Conditions. CHEMSUSCHEM 2019; 12:1673-1683. [PMID: 30775871 DOI: 10.1002/cssc.201900137] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/17/2019] [Indexed: 06/09/2023]
Abstract
Metal-free Friedel-Crafts benzylation (FCB) of scarcely reactive arenes and heteroarenes was performed under on-water conditions by an environmentally sustainable procedure. The catalytic strategy exploits the hydrophobicity of the resorcinarene macrocycle 1 a. The proposed mechanism is based on the activation of benzyl chloride by H-bonding interactions with catalyst 1 a. In fact, under on-water conditions the hydrophobic amplification of the strength of the H-bonding interactions between the OH groups of the resorcinarene catalyst and the chlorine atom of benzyl chloride leads to polarization of the C-Cl bond, which consequently promotes electrophilic attack of the π nucleophile. Thus, many arenes and heteroarenes were efficiently benzylated under mild on-water conditions by using resorcinarene 1 a as catalyst. The FCB of benzene is industrially relevant for the synthesis of diphenylmethane, and hence the on-water procedure was extended to the gram-scale synthesis of diphenylmethane, starting from benzene and benzyl chloride in the presence of resorcinarene catalyst 1 a.
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Affiliation(s)
- Pellegrino La Manna
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
| | - Antonio Buonerba
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia "A. Zambelli", Università di Salerno, Via Giovanni Paolo II, Fisciano (SALERNO), 84084, Italy
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36
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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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37
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Kaizerman-Kane D, Hadar M, Tal N, Dobrovetsky R, Zafrani Y, Cohen Y. pH-Responsive Pillar[6]arene-based Water-Soluble Supramolecular Hexagonal Boxes. Angew Chem Int Ed Engl 2019; 58:5302-5306. [PMID: 30786135 DOI: 10.1002/anie.201900217] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 02/14/2019] [Indexed: 01/08/2023]
Abstract
We describe the preparation of the first water-soluble pH-responsive supramolecular hexagonal boxes (SHBs) based on multiple charge-assisted hydrogen bonds between peramino-pillar[6]arenes 2 with the molecular "lid" mellitic acid (1 a). The interaction between 2 and 1 a, as well as the other "lids" pyromellitic and trimesic acids (1 b and 1 c, respecively) were studied by a combination of experimental and computational methods. Interestingly, the addition of 1 a to the complexes of the protonated form of pillar[6]arene 2, that is, 3, with bis-sulfonate 4 a or 4 b, immediately led to guest escape along with the formation of closed 1 a2 2 supramolecular boxes. Moreover, the process of the openning and closing of the supramolecular boxes along with threading and escaping of the guests, respectively, was found to be reversible and pH-responsive. This study paves the way for the easy and modular preparation of different SHBs that may have myriad applications.
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Affiliation(s)
- Dana Kaizerman-Kane
- School of Chemistry, Sackler Faculty of Exact sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Maya Hadar
- School of Chemistry, Sackler Faculty of Exact sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Noam Tal
- School of Chemistry, Sackler Faculty of Exact sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Roman Dobrovetsky
- School of Chemistry, Sackler Faculty of Exact sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
| | - Yossi Zafrani
- School of Chemistry, Sackler Faculty of Exact sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel.,Department of Organic Chemistry, Israel Institute for Biological Research, Ness-Ziona, 740000, Israel
| | - Yoram Cohen
- School of Chemistry, Sackler Faculty of Exact sciences, Tel Aviv University, Ramat Aviv, 69978, Tel Aviv, Israel
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38
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Kaizerman‐Kane D, Hadar M, Tal N, Dobrovetsky R, Zafrani Y, Cohen Y. pH‐Responsive Pillar[6]arene‐based Water‐Soluble Supramolecular Hexagonal Boxes. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900217] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Dana Kaizerman‐Kane
- School of ChemistrySackler Faculty of Exact sciencesTel Aviv University Ramat Aviv 69978 Tel Aviv Israel
| | - Maya Hadar
- School of ChemistrySackler Faculty of Exact sciencesTel Aviv University Ramat Aviv 69978 Tel Aviv Israel
| | - Noam Tal
- School of ChemistrySackler Faculty of Exact sciencesTel Aviv University Ramat Aviv 69978 Tel Aviv Israel
| | - Roman Dobrovetsky
- School of ChemistrySackler Faculty of Exact sciencesTel Aviv University Ramat Aviv 69978 Tel Aviv Israel
| | - Yossi Zafrani
- School of ChemistrySackler Faculty of Exact sciencesTel Aviv University Ramat Aviv 69978 Tel Aviv Israel
- Department of Organic ChemistryIsrael Institute for Biological Research Ness-Ziona 740000 Israel
| | - Yoram Cohen
- School of ChemistrySackler Faculty of Exact sciencesTel Aviv University Ramat Aviv 69978 Tel Aviv Israel
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39
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Salerno L, Floresta G, Ciaffaglione V, Gentile D, Margani F, Turnaturi R, Rescifina A, Pittalà V. Progress in the development of selective heme oxygenase-1 inhibitors and their potential therapeutic application. Eur J Med Chem 2019; 167:439-453. [PMID: 30784878 DOI: 10.1016/j.ejmech.2019.02.027] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 02/08/2019] [Accepted: 02/08/2019] [Indexed: 10/27/2022]
Abstract
Heme oxygenases (HOs) are a family of enzymes involved in the selective catabolism of free circulating heme. While HO-2 is constitutively expressed, HO-1 is strongly overexpressed under stressful stimuli (e.g., oxidative stress). Under these conditions, HO-1 exerts its strong cytoprotective activities and plays a crucial role in stimulating cell survival by removing the pro-oxidant heme and by producing carbon monoxide and biliverdin (promptly reduced to bilirubin). Unfortunately, the broad spectrum of HO-1 cytoprotective effects has been well experimentally documented both in normal and tumor cells, where the enzyme can be overexpressed, making it an exciting target in the management of some type of tumors. Development of non-competitive HO-1 inhibitors dates back in 2002 with the discovery of Azalanstat. Since then, many efforts have been devoted to the identification of selective HO-1 and HO-2 inhibitors and to unravel the molecular determinants responsible for selectivity. Molecular modeling studies supported the identification of chemical features involved in the recognition and inhibition of these enzymes. Herein, medicinal chemistry aspects and in silico studies related to the development of HO inhibitors will be discussed. The purpose of this review is to highlight recent advances in the development of new selective HO-1 and HO-2 inhibitors and covers the last six years (2013-2018).
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Affiliation(s)
- Loredana Salerno
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Giuseppe Floresta
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Valeria Ciaffaglione
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Davide Gentile
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy; Department of Chemical Sciences, University of Catania, V.le A. Doria, 95125, Catania, Italy
| | - Fatima Margani
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Rita Turnaturi
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy
| | - Antonio Rescifina
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy; Consorzio Interuniversitario Nazionale di ricerca in Metodologie e Processi Innovativi di Sintesi (C.I.N.M.P.S.), Via E. Orabona, 4, Bari, 70125, Italy.
| | - Valeria Pittalà
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125, Catania, Italy.
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40
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Gaeta C, Talotta C, De Rosa M, La Manna P, Soriente A, Neri P. The Hexameric Resorcinarene Capsule at Work: Supramolecular Catalysis in Confined Spaces. Chemistry 2019; 25:4899-4913. [DOI: 10.1002/chem.201805206] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Revised: 11/21/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II 84084 Fisciano SA Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II 84084 Fisciano SA Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II 84084 Fisciano SA Italy
| | - Pellegrino La Manna
- Dipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II 84084 Fisciano SA Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II 84084 Fisciano SA Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”Università di Salerno Via Giovanni Paolo II 84084 Fisciano SA Italy
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41
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Köster JM, Häussinger D, Tiefenbacher K. Activation of Primary and Secondary Benzylic and Tertiary Alkyl (sp 3 )C-F Bonds Inside a Self-Assembled Molecular Container. Front Chem 2019; 6:639. [PMID: 30662892 PMCID: PMC6328483 DOI: 10.3389/fchem.2018.00639] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2018] [Accepted: 12/07/2018] [Indexed: 11/15/2022] Open
Abstract
Alkyl fluorides are generally regarded as chemically inert. However, several literature examples describe the activation of alkyl (sp3)C-F bonds via strong Brønsted or Lewis acids under harsh conditions. We here report that catalytic amounts of the self-assembled resorcinarene capsule are able to activate alkyl (sp3)C-F bonds under mild conditions (40°C, no strong Brønsted or Lewis acid present). Kinetic measurements display a sigmoidal reaction progress after an initial induction period. Control experiments indicate that the presence of the supramolecular capsule is required for an efficient reaction acceleration.
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Affiliation(s)
- Jesper M Köster
- Department of Chemistry, University of Basel, Basel, Switzerland
| | | | - Konrad Tiefenbacher
- Department of Chemistry, University of Basel, Basel, Switzerland.,Department of Biosystems Science and Engineering, ETH Zürich, Basel, Switzerland
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42
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Floresta G, Rescifina A. Metyrapone-β-cyclodextrin supramolecular interactions inferred by complementary spectroscopic/spectrometric and computational studies. J Mol Struct 2019. [DOI: 10.1016/j.molstruc.2018.09.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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43
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Floresta G, Cilibrizzi A, Abbate V, Spampinato A, Zagni C, Rescifina A. FABP4 inhibitors 3D-QSAR model and isosteric replacement of BMS309403 datasets. Data Brief 2018; 22:471-483. [PMID: 30619925 PMCID: PMC6312796 DOI: 10.1016/j.dib.2018.12.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2018] [Revised: 12/12/2018] [Accepted: 12/13/2018] [Indexed: 12/12/2022] Open
Abstract
The data have been obtained from FABP4 inhibitor molecules previously published. The 120 compounds were used to build a 3D-QSAR model. The development of the QSAR model has been undertaken with the use of Forge software using the PM3 optimized structure and the experimental IC50 of each compound. The QSAR model was also employed to predict the activity of 3000 new isosteric derivatives of BMS309403. The isosteric replacement was also validated by the synthesis and the biological screening of three new compounds reported in the related research article “3D-QSAR assisted identification of FABP4 inhibitors: An effective scaffold hopping analysis/QSAR evaluation” (Floresta et al., 2019).
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Affiliation(s)
- Giuseppe Floresta
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy.,Department of Chemical Sciences, University of Catania, V.le A. Doria, 95125 Catania, Italy.,Institute of Pharmaceutical Science, King׳s College London, Stamford Street, London SE1 9NH, UK
| | - Agostino Cilibrizzi
- Institute of Pharmaceutical Science, King׳s College London, Stamford Street, London SE1 9NH, UK.,King׳s Forensics, School of Population Health & Environmental Sciences, King׳s College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK
| | - Vincenzo Abbate
- King׳s Forensics, School of Population Health & Environmental Sciences, King׳s College London, Franklin-Wilkins Building, 150 Stamford Street, London SE1 9NH, UK
| | - Ambra Spampinato
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Chiara Zagni
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy
| | - Antonio Rescifina
- Department of Drug Sciences, University of Catania, V.le A. Doria 6, 95125 Catania, Italy
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44
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Horin I, Adiri T, Zafrani Y, Cohen Y. Bis-resorcin[4]arene Selectively Forms Hexameric Capsules in Apolar Solvents: Evidence from Diffusion NMR. Org Lett 2018; 20:3958-3961. [DOI: 10.1021/acs.orglett.8b01526] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Inbar Horin
- School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
| | - Tal Adiri
- School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
| | - Yossi Zafrani
- School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
- Department of Organic Chemistry, Israel Institute for Biological Research, Ness-Ziona 74000, Israel
| | - Yoram Cohen
- School of Chemistry, The Sackler Faculty of Exact Sciences, Tel Aviv University, Ramat Aviv 69978, Tel Aviv, Israel
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45
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Köster JM, Tiefenbacher K. Elucidating the Importance of Hydrochloric Acid as a Cocatalyst for Resorcinarene-Capsule-Catalyzed Reactions. ChemCatChem 2018. [DOI: 10.1002/cctc.201800326] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Jesper M. Köster
- Department of Chemistry, BPR1096; University of Basel; Mattenstrasse 24a 4058 Basel Switzerland
| | - Konrad Tiefenbacher
- Department of Chemistry, BPR1096; University of Basel; Mattenstrasse 24a 4058 Basel Switzerland
- Department of Biosystems Science and Engineering; ETH Zürich; Mattenstrasse 24 4058 Basel Switzerland
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46
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La Manna P, Talotta C, Floresta G, De Rosa M, Soriente A, Rescifina A, Gaeta C, Neri P. Mild Friedel-Crafts Reactions inside a Hexameric Resorcinarene Capsule: C−Cl Bond Activation through Hydrogen Bonding to Bridging Water Molecules. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801642] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Pellegrino La Manna
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze Chimiche; Università di Catania; Viale A. Doria, 6 95125 Catania Italy
- Dipartimento di Scienze del Farmaco; Università di Catania; Viale Andrea Doria, 6 95125 Catania Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco; Università di Catania; Viale Andrea Doria, 6 95125 Catania Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
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47
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La Manna P, Talotta C, Floresta G, De Rosa M, Soriente A, Rescifina A, Gaeta C, Neri P. Mild Friedel-Crafts Reactions inside a Hexameric Resorcinarene Capsule: C−Cl Bond Activation through Hydrogen Bonding to Bridging Water Molecules. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/anie.201801642] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Pellegrino La Manna
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Giuseppe Floresta
- Dipartimento di Scienze Chimiche; Università di Catania; Viale A. Doria, 6 95125 Catania Italy
- Dipartimento di Scienze del Farmaco; Università di Catania; Viale Andrea Doria, 6 95125 Catania Italy
| | - Margherita De Rosa
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Antonio Rescifina
- Dipartimento di Scienze del Farmaco; Università di Catania; Viale Andrea Doria, 6 95125 Catania Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia “A. Zambelli”; Università di Salerno; Via Giovanni Paolo II, 132 84084 Fisciano (Salerno) Italy
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De Rosa M, La Manna P, Talotta C, Soriente A, Gaeta C, Neri P. Supramolecular Organocatalysis in Water Mediated by Macrocyclic Compounds. Front Chem 2018; 6:84. [PMID: 29666791 PMCID: PMC5891620 DOI: 10.3389/fchem.2018.00084] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 03/12/2018] [Indexed: 11/20/2022] Open
Abstract
In the last decades many efforts have been devoted to design supramolecular organocatalysts able to work in water as the reaction medium. The use of water as solvent provides promising benefits with respect to environmental impact. In this context, macrocyclic compounds played a role of primary importance thanks to their ease of synthesis and their molecular recognition abilities toward the reactants. The aim of this review is to give an overview of the recent advances in the field of supramolecular organocatalysis in water, focusing the attention on calixarene and cyclodextrins derivatives. Calixarenes and cyclodextrins, thanks to their hydrophobic cavities, are able to host selectively the substrates isolating they from the reaction environment. In addition, the synthetic versatilities of these macrocycles permits to introduce useful functional groups in close proximity of the hydrophobic binding sites. Regarding the cyclodextrins (CDs), we have here reviewed the their most recent uses as organocatalysts for the synthesis of heterocyclic compounds, in multi-component reactions and in carbon-carbon bond forming reactions. Examples have been reported in which CD catalysts are able to drive the regiochemistry of common organic reactions. In addition, cyclodextrins bearing catalytically active chiral groups, have shown excellent enantioselectivity in the catalysis of organic reactions. Recently reported results have shown that calixarene derivatives are able to accelerate organic reaction under “on-water” conditions with a significant selectivity toward the reactants. Under “on-water conditions” the hydrophobic effect, induced by insoluble calixarene derivatives, forces the reactants and the catalyst to aggregate and thus accelerating the reaction between them thanks to an amplification of weak secondary interactions. Regarding the use of water-soluble calixarene organocatalysts, we have here reviewed their role in the acceleration of common organic reactions.
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Affiliation(s)
- Margherita De Rosa
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Pellegrino La Manna
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Carmen Talotta
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Annunziata Soriente
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Carmine Gaeta
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
| | - Placido Neri
- Dipartimento di Chimica e Biologia " Zambelli", Università degli Studi di Salerno, Salerno, Italy
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