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Molliet A, Doninelli S, Hong L, Tran B, Debas M, Salentinig S, Kilbinger AFM, Casalini T. Solvent Dependent Folding of an Amphiphilic Polyaramid. J Am Chem Soc 2023; 145:27830-27837. [PMID: 38084077 DOI: 10.1021/jacs.3c11026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2023]
Abstract
A series of synthetic alternating and amphiphilic aromatic amide polymers were synthesized by a step growth polymerization. Alternating meta- and para-linkages were introduced to force the polymer chain into a helical shape in the highly polar solvent water. The polymers were analyzed by 1H NMR spectroscopy and SEC in polar aprotic solvents such as DMSO and DMF. However, the polymers also showed good solubility in water. 1H NMR spectroscopy, small-angle X-ray scattering, and dynamic light scattering provided clear evidence of polymer folding in water but not DMF. We employed parallel tempering metadynamics in the well-tempered ensemble (PTMetaD-WTE) to simulate the free energy surfaces of an analogous model polymer in DMF and water. The simulations gave a molecular model of an unfolded structure in DMF and a helically folded tubular structure in water.
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Affiliation(s)
- Angélique Molliet
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Samantha Doninelli
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Linda Hong
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Bettina Tran
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Meron Debas
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Stefan Salentinig
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Andreas F M Kilbinger
- Department of Chemistry, University of Fribourg, Chemin du Musée 9, CH-1700 Fribourg, Switzerland
| | - Tommaso Casalini
- Department of Chemistry and Applied Bioscience, Institute for Chemical and Bioengineering, ETH Zurich, Vladimir-Prelog-Weg 1-5/10, Zürich 8093, Switzerland
- Polymer Engineering Laboratory, Institute for Mechanical Engineering and Materials Technology, University of Applied Sciences and Arts of Southern Switzerland (SUPSI), Via la Santa 1, Lugano 6962, Switzerland
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2
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Synthesis and crystal structures of N,N-diarylacetamides bearing two azulene rings. Tetrahedron Lett 2021. [DOI: 10.1016/j.tetlet.2021.153523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zhong H, Deng J. Preparation and Chiral Applications of Optically Active Polyamides. Macromol Rapid Commun 2021; 42:e2100341. [PMID: 34347330 DOI: 10.1002/marc.202100341] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/05/2021] [Indexed: 12/24/2022]
Abstract
Chirality is omnipresent in nature and plays vital roles in living organism, and has become a hot research topic across multidisciplinary fields including chemistry, biology, physics, and material science. Meanwhile, polyamides constitute an important class of polymers and have received significant attention owing to their outstanding properties and wide-ranging applications in many areas. Judiciously introducing chirality into polyamides will undoubtedly obtain attractive chiral polymers, namely, optically active polyamides. This review describes the preparation methods of chiral polyamides, including solution polycondensation, interfacial polycondensation, ring-open polymerization, and others; the newly emerging categories of chiral polyamides, i.e., helical polyamides, chiral polyamide-imides, are also presented. The applications of optically active polyamides in chiral research fields including asymmetric catalysis, membrane separation, and enantioselective crystallization are also summarized. In addition, current challenges in chiral polyamides are further presented and future perspectives in the field are proposed.
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Affiliation(s)
- Hai Zhong
- State Key Laboratory of Chemical Resource Engineering and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jianping Deng
- State Key Laboratory of Chemical Resource Engineering and College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
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Urushibara K, Ferrand Y, Liu Z, Katagiri K, Kawahata M, Morvan E, D'Elia R, Pophristic V, Tanatani A, Huc I. Accessing Improbable Foldamer Shapes with Strained Macrocycles. Chemistry 2021; 27:11205-11215. [PMID: 33905165 PMCID: PMC8453500 DOI: 10.1002/chem.202101201] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2021] [Indexed: 11/07/2022]
Abstract
The alkylation of some secondary amide functions with a dimethoxybenzyl (DMB) group in oligomers of 8-amino-2-quinolinecarboxylic acid destabilizes the otherwise favored helical conformations, and allows for cyclization to take place. A cyclic hexamer and a cyclic heptamer were produced in this manner. After DMB removal, X-ray crystallography and NMR show that the macrocycles adopt strained conformations that would be improbable in noncyclic species. The high helix folding propensity of the main chain is partly expressed in these conformations, but it remains frustrated by macrocyclization. Despite being homomeric, the macrocycles possess inequivalent monomer units. Experimental and computational studies highlight specific fluxional pathways within these structures. Extensive simulated annealing molecular dynamics allow for the prediction of the conformations for larger macrocycles with up to sixteen monomers.
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Affiliation(s)
- Ko Urushibara
- Department of ChemistryFaculty of ScienceOchanomizu University2-1-1 Otsuka, Bunkyo-kuTokyo112-8610Japan
- CBMN (UMR 5248)Université de BordeauxCNRSBordeaux Institut National Polytechnique2 rue Robert Escarpit33600PessacFrance
| | - Yann Ferrand
- CBMN (UMR 5248)Université de BordeauxCNRSBordeaux Institut National Polytechnique2 rue Robert Escarpit33600PessacFrance
| | - Zhiwei Liu
- Department of Chemistry & BiochemistryUniversity of the Sciences600 South 43rd StreetPhiladelphiaPA19104USA
| | - Kosuke Katagiri
- Department of ChemistryFaculty of Science and EngineeringKonan University8-9-1 Okamoto, Higashinada-kuKobe658-8501Japan
| | - Masatoshi Kawahata
- Faculty of Pharmaceutical SciencesShowa Pharmaceutical University3-3165 Higashi-TamagawagakuenMachidaTokyo194-8543Japan
| | - Estelle Morvan
- IECB (UMS3033/US001)Université de Bordeaux, CNRS, INSERM2 rue Robert Escarpit33600PessacFrance
| | - Ryan D'Elia
- Department of Chemistry & BiochemistryUniversity of the Sciences600 South 43rd StreetPhiladelphiaPA19104USA
| | - Vojislava Pophristic
- Department of Chemistry & BiochemistryUniversity of the Sciences600 South 43rd StreetPhiladelphiaPA19104USA
| | - Aya Tanatani
- Department of ChemistryFaculty of ScienceOchanomizu University2-1-1 Otsuka, Bunkyo-kuTokyo112-8610Japan
| | - Ivan Huc
- CBMN (UMR 5248)Université de BordeauxCNRSBordeaux Institut National Polytechnique2 rue Robert Escarpit33600PessacFrance
- Department of Pharmacy and Center for Integrated Protein ScienceLudwig-Maximilians-UniversitätButenandtstr. 5–1381377MünchenGermany
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Akhdar A, Gautier A, Hjelmgaard T, Faure S. N-Alkylated Aromatic Poly- and Oligoamides. Chempluschem 2021; 86:298-312. [PMID: 33620768 DOI: 10.1002/cplu.202000825] [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: 12/30/2020] [Revised: 02/15/2021] [Indexed: 01/18/2023]
Abstract
N-alkylated aromatic poly- and oligoamides are a particular class of abiotic foldamers that is deprived of the capability of forming intramolecular hydrogen-bonding networks to stabilize their tri-dimensional structure. The alkylation of the backbone amide nitrogen atoms greatly increases the chemical diversity accessible for aromatic poly- and oligoamides. However, the nature and the conformational preferences of the N,N-disubstituted amides profoundly modify the folding properties of these aromatic poly- and oligoamides. In this Review, representative members of this class of aromatic poly- and oligoamides will be highlighted, among them N-alkylated phenylene terephthalamides, benzanilides, pyridylamides, and aminomethyl benzamide oligomers. The principal synthetic pathways to the main classes of N-alkylated aromatic polyamides with narrow to broad molecular-weight distribution, or oligoamides with specific sequences, will be detailed and their foldameric properties will be discussed. The Review will end by describing the few applications reported to date and future prospects for the field.
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Affiliation(s)
- Ayman Akhdar
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, 63000, Clermont-Ferrand, France
| | - Arnaud Gautier
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, 63000, Clermont-Ferrand, France
| | - Thomas Hjelmgaard
- Rockwool International A/S, Hovedgaden 584, 2640, Hedehusene, Denmark
| | - Sophie Faure
- Université Clermont Auvergne, CNRS, SIGMA Clermont, ICCF, 63000, Clermont-Ferrand, France
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Pal S, Nguyen DPT, Molliet A, Alizadeh M, Crochet A, Ortuso RD, Petri-Fink A, Kilbinger AFM. A versatile living polymerization method for aromatic amides. Nat Chem 2021; 13:705-713. [PMID: 34103692 DOI: 10.1038/s41557-021-00712-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 04/23/2021] [Indexed: 11/09/2022]
Abstract
Polycondensation polymers typically follow step-growth kinetics assuming all functional groups are equally likely to react with one another. If the reaction rates with the chain end can be selectively accelerated, living polymers can be obtained. Here we report on two chlorophosphonium iodide reagents that have been synthesized from triphenylphosphine and tri(o-methoxyphenyl)phosphine. The former activates aromatic carboxylic acids as acid chlorides in the presence of secondary aromatic amines and the latter even in the presence of primary aromatic amines. These reagents allow p-aminobenzoic acid derivatives to form solution-stable activated monomers that polymerize in a living fashion in the presence of amine initiators. Other aryl amino acids and even dimers of aryl amino acids can be polymerized in a living fashion when slowly added to the phosphonium salt in the presence of an amine initiator. Diblock copolymers and triblock terpolymers of aryl amino acids can be prepared even in the presence of electrophilic functional groups.
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Affiliation(s)
- Subhajit Pal
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | | | - Angélique Molliet
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Mahshid Alizadeh
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Aurélien Crochet
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland
| | - Roberto D Ortuso
- Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
| | - Alke Petri-Fink
- Department of Chemistry, University of Fribourg, Fribourg, Switzerland.,Adolphe Merkle Institute, University of Fribourg, Fribourg, Switzerland
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Urushibara K, Yamada T, Yokoyama A, Mori H, Masu H, Azumaya I, Kagechika H, Yokozawa T, Tanatani A. Development of Helical Aromatic Amide Foldamers with a Diphenylacetylene Backbone. J Org Chem 2020; 85:2019-2039. [DOI: 10.1021/acs.joc.9b02758] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Ko Urushibara
- Department of Chemistry and Biochemistry, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Tatsunori Yamada
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi,
Kanagawa-ku, Yokohama 221-8686, Japan
| | - Akihiro Yokoyama
- Department of Materials and Life Science, Faculty of Science and Technology, Seikei University, 3-3-1 Kichijoji-Kitamachi, Musashino, Tokyo 180-8633, Japan
| | - Hirotoshi Mori
- Department of Chemistry and Biochemistry, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Hyuma Masu
- Center for Analytical Instrumentation, Chiba University, 1-33 Yayoi, Inage, Chiba 263-8522, Japan
| | - Isao Azumaya
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Hiroyuki Kagechika
- Institute of Biomaterials and Bioengineering, Tokyo Medical and Dental University, 2-3-10 Kanda-Surugadai, Chiyoda-ku, Tokyo 101-0062, Japan
| | - Tsutomu Yokozawa
- Department of Materials and Life Chemistry, Kanagawa University, Rokkakubashi,
Kanagawa-ku, Yokohama 221-8686, Japan
| | - Aya Tanatani
- Department of Chemistry and Biochemistry, Graduate School of Humanities and Sciences, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
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Pros GJ, Bloomfield AJ. Why Do N-Alkylated Anilides Bend Over? The Factors Dictating the Divergent Conformational Preferences of 2° and 3° N-Aryl Amides. J Phys Chem A 2019; 123:7609-7618. [DOI: 10.1021/acs.jpca.9b04555] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Gabrielle J. Pros
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
| | - Aaron J. Bloomfield
- Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
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Tanatani A. Novel Helical Foldamers Based on the Conformational Properties of Aromatic Amides. YAKUGAKU ZASSHI 2019; 139:581-589. [DOI: 10.1248/yakushi.18-00179-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Aya Tanatani
- Department of Chemistry, Faculty of Science, Ochanomizu University
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10
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Atcher J, Nagai A, Mayer P, Maurizot V, Tanatani A, Huc I. Aromatic β-sheet foldamers based on tertiary squaramides. Chem Commun (Camb) 2019; 55:10392-10395. [DOI: 10.1039/c9cc04849a] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Suitably substituted aryl-methyl tertiary squaramides are convenient and efficient at promoting hairpin turns in aromatic amide sequences.
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Affiliation(s)
- Joan Atcher
- Department of Pharmacy and Center for Integrated Protein Science
- Ludwig-Maximilians-Universität
- Germany
- CBMN (UMR5248)
- Université de Bordeaux-CNRS-IPB
| | - Aki Nagai
- CBMN (UMR5248)
- Université de Bordeaux-CNRS-IPB
- Institut Européen de Chimie et Biologie
- 33600 Pessac
- France
| | - Peter Mayer
- Department of Chemistry
- Ludwig-Maximilians-Universität
- Germany
| | - Victor Maurizot
- CBMN (UMR5248)
- Université de Bordeaux-CNRS-IPB
- Institut Européen de Chimie et Biologie
- 33600 Pessac
- France
| | - Aya Tanatani
- Department of Chemistry
- Faculty of Science
- Ochnomizu University
- Tokyo 112-8610
- Japan
| | - Ivan Huc
- Department of Pharmacy and Center for Integrated Protein Science
- Ludwig-Maximilians-Universität
- Germany
- CBMN (UMR5248)
- Université de Bordeaux-CNRS-IPB
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