1
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Novel ferrocene imide derivatives: synthesis, conformational analysis and X-ray structure. Heliyon 2022; 8:e09470. [PMID: 35647357 PMCID: PMC9131161 DOI: 10.1016/j.heliyon.2022.e09470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2022] [Revised: 03/22/2022] [Accepted: 05/13/2022] [Indexed: 12/02/2022] Open
Abstract
The synthesis and structural characterization of the ferrocene imide derivatives Fc−CO−NH−CO−Me (4), Fc−CO−NH−CO−Fc (7) and Fc−CO−NH−CO−Fn−CO−NH−CO−Fc (8) have been reported. The mononuclear, dinuclear and trinuclear ferrocene imides were prepared by the reaction of ferrocenecarboxamide (3), with acetyl chloride, ferrocenecarbonyl chloride (2) and ferrocene-1,1’-(dicarbonyl chloride) (6), respectively. IR spectroscopic analysis revealed the absence of intramolecular hydrogen bonds in solutions of imides 4, 7 and 8. The crystal packing of N-acetylferrocenecarboxamide (4) is characterized by N−H⋯O hydrogen bonds forming centrosymmetric dimers, while the molecules of its homologue N-methylferrocenecarboxamide (5) are self-assembled by intermolecular N−H⋯O bonds into infinite chains. A detailed conformational analysis (DFT study) suggests the cis-trans configuration of ferrocene imide derivative 7 in solution. The effect of different substituents attached to bridged imide nitrogen on conformational properties of bis-ferrocenyl imides was further investigated and results compared to the existing experimental data.
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2
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Zheng L, Zhan Y, Yu C, Huang F, Wang Y, Jiang H. Controlling Helix Sense at N- and C-Termini in Quinoline Oligoamide Foldamers by β-Pinene-Derived Pyridyl Moieties. Org Lett 2017; 19:1482-1485. [DOI: 10.1021/acs.orglett.7b00510] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Lu Zheng
- Key
Laboratory of Radiopharmaceuticals and Key Laboratory of Theoretical
and Computational Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Yulin Zhan
- Key
Laboratory of Radiopharmaceuticals and Key Laboratory of Theoretical
and Computational Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Chengyuan Yu
- Key
Laboratory of Radiopharmaceuticals and Key Laboratory of Theoretical
and Computational Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Fu Huang
- Key
Laboratory of Radiopharmaceuticals and Key Laboratory of Theoretical
and Computational Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
- Institute
of Chemistry, Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Ying Wang
- Key
Laboratory of Radiopharmaceuticals and Key Laboratory of Theoretical
and Computational Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - Hua Jiang
- Key
Laboratory of Radiopharmaceuticals and Key Laboratory of Theoretical
and Computational Photochemistry, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
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3
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Castanheiro T, Suffert J, Gulea M, Donnard M. Aerobic Copper-Mediated Domino Three-Component Approach to 2-Aminobenzothiazole Derivatives. Org Lett 2016; 18:2588-91. [PMID: 27192105 DOI: 10.1021/acs.orglett.6b00967] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An unprecedented three-component reaction involving a 2,2'-diaminodiaryl disulfide, copper cyanide, and an electrophile is described. This transformation is based on an oxidative copper-mediated S-cyanation as a key step and involves a cyanation/cyclization/acylation domino sequence enabling a rapid and efficient synthesis of diversely substituted 2-aminobenzothiazole derivatives. Notably, this reaction proceeds via an original mechanism involving an intermolecular migration of the acyl group.
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Affiliation(s)
- Thomas Castanheiro
- Laboratoire d'Innovation Thérapeutique (UMR 7200), Faculté de Pharmacie, Université de Strasbourg, CNRS , 74 Route du Rhin, 67401 Illkirch, France
| | - Jean Suffert
- Laboratoire d'Innovation Thérapeutique (UMR 7200), Faculté de Pharmacie, Université de Strasbourg, CNRS , 74 Route du Rhin, 67401 Illkirch, France
| | - Mihaela Gulea
- Laboratoire d'Innovation Thérapeutique (UMR 7200), Faculté de Pharmacie, Université de Strasbourg, CNRS , 74 Route du Rhin, 67401 Illkirch, France
| | - Morgan Donnard
- Laboratoire d'Innovation Thérapeutique (UMR 7200), Faculté de Pharmacie, Université de Strasbourg, CNRS , 74 Route du Rhin, 67401 Illkirch, France
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4
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Okuda H, Koyama Y, Uchida S, Michinobu T, Sogawa H, Takata T. Reversible Transformation of a One-Handed Helical Foldamer Utilizing a Planarity-Switchable Spacer and C2-Chiral Spirobifluorene Units. ACS Macro Lett 2015; 4:462-466. [PMID: 35596314 DOI: 10.1021/acsmacrolett.5b00176] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Polymeric quaterthiophenes containing optically active C2-chiral spirobifluorene skeletons were synthesized as a new type of helical foldamers, and their higher-order structures were investigated. Oxidization of quaterthiophene moieties caused the spacer units to be in planar structure, leading the conformation of the polymer to be a coil-shaped, rigid helix. This transformation was reversibly performed.
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Affiliation(s)
- Hitoshi Okuda
- Department
of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Yasuhito Koyama
- Department
of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Satoshi Uchida
- Department
of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Tsuyoshi Michinobu
- Department
of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Hiromitsu Sogawa
- Department
of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
| | - Toshikazu Takata
- Department
of Organic and
Polymeric Materials, Tokyo Institute of Technology, 2-12-1, Ookayama, Meguro-ku, Tokyo 152-8552, Japan
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5
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Folded-to-unfolded structural switching of a macrocyclic aromatic hexaamide based on conformation changes in the amide groups induced by N-alkylation and dealkylation reactions. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.10.074] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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6
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Anion-π Interactions in Supramolecular Chemistry and Catalysis. CHALLENGES AND ADVANCES IN COMPUTATIONAL CHEMISTRY AND PHYSICS 2015. [DOI: 10.1007/978-3-319-14163-3_16] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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7
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Yi Z, Okuda H, Koyama Y, Seto R, Uchida S, Sogawa H, Kuwata S, Takata T. Exact helical polymer synthesis by a two-point-covalent-linking protocol between C2-chiral spirobifluorene and C2- or Cs-symmetric anthraquinone monomers. Chem Commun (Camb) 2015; 51:10423-6. [DOI: 10.1039/c5cc02086g] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two types of one-handed exact helical polymers, coil- and screw-shaped polymers, were selectively synthesized by a two-point-covalent-linking protocol.
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Affiliation(s)
- Zhaozhong Yi
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Hitoshi Okuda
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Yasuhito Koyama
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Ryota Seto
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Satoshi Uchida
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Hiromitsu Sogawa
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Shigeki Kuwata
- Department of Applied Chemistry
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
| | - Toshikazu Takata
- Department of Organic and Polymeric Materials
- Tokyo Institute of Technology
- Tokyo 152-8552
- Japan
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8
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Sebaoun L, Maurizot V, Granier T, Kauffmann B, Huc I. Aromatic Oligoamide β-Sheet Foldamers. J Am Chem Soc 2014; 136:2168-74. [DOI: 10.1021/ja412729s] [Citation(s) in RCA: 74] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Laure Sebaoun
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
| | - Victor Maurizot
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
| | - Thierry Granier
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
| | - Brice Kauffmann
- Université de Bordeaux, Institut Européen de Chimie Biologie
(UMS 3033/US 001), 2 rue Escarpit, 33600 Pessac, France
- CNRS, Institut
Européen de Chimie Biologie (UMS 3033), 33600 Pessac, France
- INSERM, Institut Européen de Chimie Biologie (US 001), 33600 Pessac,
France
| | - Ivan Huc
- Université de Bordeaux, CBMN (UMR 5248), Institut Européen
de Chimie Biologie, 2 rue Escarpit, 33600 Pessac, France
- CNRS, CBMN
(UMR 5248), France
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9
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Lautrette G, Kauffmann B, Ferrand Y, Aube C, Chandramouli N, Dubreuil D, Huc I. Structure Elucidation of Host-Guest Complexes of Tartaric and Malic Acids by Quasi-Racemic Crystallography. Angew Chem Int Ed Engl 2013; 52:11517-20. [DOI: 10.1002/anie.201305364] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Indexed: 11/11/2022]
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10
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Lautrette G, Kauffmann B, Ferrand Y, Aube C, Chandramouli N, Dubreuil D, Huc I. Structure Elucidation of Host-Guest Complexes of Tartaric and Malic Acids by Quasi-Racemic Crystallography. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201305364] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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11
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Frontera A. Encapsulation of anions: Macrocyclic receptors based on metal coordination and anion–π interactions. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.01.032] [Citation(s) in RCA: 94] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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12
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Kovač V, Semenčić MČ, Molčanov K, Sabljić I, Iveković D, Žinić M, Rapić V. Synthesis and structure of bis- and tris-ferrocene containing N-methylimide foldamers. Tetrahedron 2012. [DOI: 10.1016/j.tet.2012.07.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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13
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Theoretical ab initio study of substituted benzene trimer: Interplay between hydrogen bonding and π–π interactions. COMPUT THEOR CHEM 2011. [DOI: 10.1016/j.comptc.2010.12.029] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Okamoto I, Terashima M, Masu H, Nabeta M, Ono K, Morita N, Katagiri K, Azumaya I, Tamura O. Acid-induced conformational alteration of cis-preferential aromatic amides bearing N-methyl-N-(2-pyridyl) moiety. Tetrahedron 2011. [DOI: 10.1016/j.tet.2011.08.085] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Frontera A, Gamez P, Mascal M, Mooibroek TJ, Reedijk J. Anion-π-Wechselwirkungen ins rechte Licht gerückt. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201100208] [Citation(s) in RCA: 107] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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16
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Frontera A, Gamez P, Mascal M, Mooibroek TJ, Reedijk J. Putting anion-π interactions into perspective. Angew Chem Int Ed Engl 2011; 50:9564-83. [PMID: 21928463 DOI: 10.1002/anie.201100208] [Citation(s) in RCA: 520] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2011] [Revised: 03/16/2011] [Indexed: 01/20/2023]
Abstract
Supramolecular chemistry is a field of scientific exploration that probes the relationship between molecular structure and function. It is the chemistry of the noncovalent bond, which forms the basis of highly specific recognition, transport, and regulation events that actuate biological processes. The classic design principles of supramolecular chemistry include strong, directional interactions like hydrogen bonding, halogen bonding, and cation-π complexation, as well as less directional forces like ion pairing, π-π, solvophobic, and van der Waals potentials. In recent years, the anion-π interaction (an attractive force between an electron-deficient aromatic π system and an anion) has been recognized as a hitherto unexplored noncovalent bond, the nature of which has been interpreted through both experimental and theoretical investigations. The design of selective anion receptors and channels based on this interaction represent important advances in the field of supramolecular chemistry. The objectives of this Review are 1) to discuss current thinking on the nature of this interaction, 2) to survey key experimental work in which anion-π bonding is demonstrated, and 3) to provide insights into the directional nature of anion-π contact in X-ray crystal structures.
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Affiliation(s)
- Antonio Frontera
- Departament de Química, Universitat de les Illes Balears, 07122 Palma de Mallorca, Spain.
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17
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Suk JM, Jeong KS. Modulation of Binding Affinities between Foldamer-Based Anion Receptors and Chloride Ion. B KOREAN CHEM SOC 2011. [DOI: 10.5012/bkcs.2011.32.8.2891] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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18
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Cetina M, Kovač V, Rapić V. N,N-Dibenzoyl-ferrocenecarboxamide. Acta Crystallogr Sect E Struct Rep Online 2011; 67:m610. [PMID: 21754327 PMCID: PMC3089337 DOI: 10.1107/s1600536811013754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 04/12/2011] [Indexed: 05/31/2023]
Abstract
In the title compound, [Fe(C(5)H(5))(C(20)H(14)NO(3))], the cyclo-penta-dienyl rings deviate by 9.3 (2)° from an eclipsed conformation, defined by C-Cg(1)-Cg(2)-C pseudo-torsion angles ranging from 8.8 (1) to 9.85 (1)°. The coordination at the N atom is slightly pyramidal, as indicated by the angular sum around it of 352.6°. The amide group is inclined at 17.86 (9) and 27.27 (11)° with respect to the aromatic rings. In the crystal, mol-ecules are linked by one C-H⋯O hydrogen bond and one C-H⋯π inter-action into a two-dimensional framework parallel to the b axis.
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Affiliation(s)
- Mario Cetina
- Department of Applied Chemistry, Faculty of Textile Technology, University of Zagreb, Prilaz baruna Filipovića 28a, HR-10000 Zagreb, Croatia
| | - Veronika Kovač
- Laboratory of Organic Chemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, Croatia
| | - Vladimir Rapić
- Laboratory of Organic Chemistry, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, Croatia
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19
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Frontera A, Quiñonero D, Deyà PM. Cation-π and anion-π interactions. WILEY INTERDISCIPLINARY REVIEWS-COMPUTATIONAL MOLECULAR SCIENCE 2011. [DOI: 10.1002/wcms.14] [Citation(s) in RCA: 112] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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20
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Kendhale AM, Poniman L, Dong Z, Laxmi-Reddy K, Kauffmann B, Ferrand Y, Huc I. Absolute Control of Helical Handedness in Quinoline Oligoamides. J Org Chem 2010; 76:195-200. [DOI: 10.1021/jo1019442] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amol M. Kendhale
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
| | - Legiso Poniman
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
| | - Zeyuan Dong
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
| | - Katta Laxmi-Reddy
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
| | - Brice Kauffmann
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
| | - Yann Ferrand
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
| | - Ivan Huc
- Institut Européen de Chimie et Biologie, Université de Bordeaux - CNRS UMR 5248 and UMS 3033, 2 rue Robert Escarpit, F-33607 Pessac, France
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21
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Fischer L, Guichard G. Folding and self-assembly of aromatic and aliphatic urea oligomers: Towards connecting structure and function. Org Biomol Chem 2010; 8:3101-17. [DOI: 10.1039/c001090a] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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22
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Mikami K, Tanatani A, Yokoyama A, Yokozawa T. Helical Folding of Poly(naphthalenecarboxamide) Prompted by Solvophobic Effect. Macromolecules 2009. [DOI: 10.1021/ma900663q] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Koichiro Mikami
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Aya Tanatani
- Department of Chemistry, Faculty of Science, Ochanomizu University, 2-1-1 Otsuka, Bunkyo-ku, Tokyo 112-8610, Japan
| | - Akihiro Yokoyama
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
| | - Tsutomu Yokozawa
- Department of Material and Life Chemistry, Kanagawa University, Rokkakubashi, Kanagawa-ku, Yokohama 221-8686, Japan
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24
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Kim UI, Suk JM, Naidu V, Jeong KS. Folding and Anion-Binding Properties of Fluorescent Oligoindole Foldamers. Chemistry 2008; 14:11406-14. [DOI: 10.1002/chem.200801713] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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25
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Naidu VR, Kim MC, Suk JM, Kim HJ, Lee M, Sim E, Jeong KS. Biased Helical Folding of Chiral Oligoindole Foldamers. Org Lett 2008; 10:5373-6. [DOI: 10.1021/ol8022243] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Min Cheol Kim
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Jae-min Suk
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Ho-Joong Kim
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Myongsoo Lee
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Eunji Sim
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
| | - Kyu-Sung Jeong
- Department of Chemistry, Yonsei University, Seoul-120-749 Korea
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26
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Chen HB, Yin J, Wang Y, Pei J. Unsaturated strained cyclophanes based on dibenz[a,j]anthracene by an intramolecular McMurry olefination. Org Lett 2008; 10:3113-6. [PMID: 18572949 DOI: 10.1021/ol801163v] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new type of rigid conjugated unsaturated strained cyclophane derivative containing dibenz[a,j]anthracene units was facilely synthesized through an intramolecular McMurry reaction without intermolecular dimerization products in good yields. The photophysical properties of these cyclophane derivatives in dilute solution were investigated, and molecular modeling was employed to study their electronic properties.
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Affiliation(s)
- Hai-Bo Chen
- The Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing, China
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27
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Kohmoto S, Takeichi H, Kishikawa K, Masu H, Azumaya I. Conformation of S-shaped aromatic imide foldamers and their induced circular dichroism. Tetrahedron Lett 2008. [DOI: 10.1016/j.tetlet.2007.12.034] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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28
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Clayden J, Lemiègre L, Pickworth M, Jones L. Conformation and stereodynamics of 2,2′-disubstituted N,N′-diaryl ureas. Org Biomol Chem 2008; 6:2908-13. [DOI: 10.1039/b802673d] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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29
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Emerging trends in molecular recognition: Utility of weak aromatic interactions. Bioorg Med Chem 2008; 16:126-43. [DOI: 10.1016/j.bmc.2007.09.023] [Citation(s) in RCA: 90] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2007] [Revised: 09/03/2007] [Accepted: 09/12/2007] [Indexed: 11/21/2022]
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30
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Slutsky MM, Phillip JS, Tew GN. Synthesis and characterization of amphiphilic o-phenylene ethynylene oligomers. NEW J CHEM 2008. [DOI: 10.1039/b707618e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Vázquez López M, Vázquez ME, Gómez-Reino C, Pedrido R, Bermejo MR. A metallo-supramolecular approach to a half-subtractor. NEW J CHEM 2008. [DOI: 10.1039/b808888h] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Li C, Zhu YY, Yi HP, Li CZ, Jiang XK, Li ZT, Yu YH. Strong Stacking between F⋅⋅⋅HN Hydrogen-Bonded Foldamers and Fullerenes: Formation of Supramolecular Nano Networks. Chemistry 2007; 13:9990-8. [PMID: 17886850 DOI: 10.1002/chem.200701047] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
The stacking interactions between FH--N hydrogen-bonded foldamers 1-3, bis-foldamer 4, and tris-foldamer 5 and C(60) and C(70) are described. Compound 4 contains two folded units, which are connected by an isophthalamide linker, whereas 5 has a C(3)-symmetrical discotic structure, in which three folded units are connected by a benzene-1,3,5-tricarboxamide unit. UV/Vis, fluorescence, and NMR experiments have revealed that the foldamers or folded units strongly stack with fullerenes in chloroform. The (apparent) association constants of the respective complexes have been determined by a fluorescence titration method. The strong association is tentatively attributed to intermolecular cooperative fluorophenylpi and solvophobic interactions. A similar but weaker interaction has also been observed between an MeOH--N hydrogen-bonded foldamer and fullerenes. AFM studies have revealed that the surfaces of 3 and 4 show fibrous networks, while the surface of 5 shows particles. In sharp contrast, mixtures of 3 and 4 with C(60) have been shown to generate thinner separated fibrils, whereas a mixture of 5 and C(60) produces honeycomb-like nano networks, for which a columnar cooperative stacking pattern is proposed. The results demonstrate the usefulness of FH--N hydrogen-bonded folded structures in the construction of nanoscaled materials.
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Affiliation(s)
- Chuang Li
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai, China
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Katayama H, de Greef TF, Kooijman H, Spek AL, Vekemans JA, Meijer E. Toward poly(aminophthalimide), structures of dimers and trimers. Tetrahedron 2007. [DOI: 10.1016/j.tet.2007.04.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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König HM, Gorelik T, Kolb U, Kilbinger AFM. Supramolecular PEG-co-oligo(p-benzamide)s prepared on a peptide synthesizer. J Am Chem Soc 2007; 129:704-8. [PMID: 17227034 DOI: 10.1021/ja0672831] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
An automated synthesis protocol has been developed for the preparation of oligo(p-benzamide)s on solid support using a commercial peptide synthesizer employing a variation of standard Fmoc chemistry. Bis(trichloromethyl carbonate) in NMP was used to activate the aromatic carboxylic acids for acylation of secondary aromatic amines on solid support. N-Protected hepta(p-benzamide) was automatically prepared on solid support and manually converted to a solid supported block co-oligomer by attaching a poly(ethylene glycol) chain. Cleavage from the support could be achieved with minimal loss of the p-methoxybenzyl N-protective group. While the N-protected block co-oligomer was molecularly dissolved in nonpolar organic solvents, the N-deprotected block co-oligomer adopted a rod-coil conformation and showed strong aggregation as evidenced by gel permeation chromatography and transmission electron microscopy. Rigid rodlike aggregates could be observed in chloroform, toluene, as well as water.
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Affiliation(s)
- Hannah M König
- Institute of Organic Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany
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Wu J, Fang F, Lu WY, Hou JL, Li C, Wu ZQ, Jiang XK, Li ZT, Yu YH. Dynamic [2]Catenanes Based on a Hydrogen Bonding-Mediated Bis-Zinc Porphyrin Foldamer Tweezer: A Case Study. J Org Chem 2007; 72:2897-905. [PMID: 17348710 DOI: 10.1021/jo062523g] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This paper describes the self-assembly of a new class of three-component dynamic [2]catenanes, which are driven or stabilized by intramolecular hydrogen bonding, coordination, and electrostatic interaction. One of the component molecules 2, consisting of an aromatic oligoamide spacer and two peripheral zinc porphyrin units, was designed to adopt a folded preorganized conformation, which is stabilized by consecutive intramolecular three-centered hydrogen bonds. Component molecule 3 is a linear secondary ammonium bearing two peripheral pyridine units, which was designed to form a 1:1 complex with 24-crown-8 (5). The 1H NMR and UV-vis experiments in CDCl3-CD3CN (4:1 v/v) revealed that, due to the preorganized U-shaped feature, 2 could efficiently bind 3 through the cooperative zinc-pyridine coordination to generate highly stable 1:1 complex 2.3. Adding 5 to the 1:1 solution of 2 and 3 led to the formation of dynamic three-component [2]catenane 2.3.5 as a result of the threading of 3 through 5. 1H NMR studies indicated that in the 1:1:1 solution (3 mM) [2]catenane 2.3.5 was generated in 55% yield at 25 degrees C. The yield was increased with the reduction of the temperature and [2]catenane could be produced quantitatively in a 1:1:2 solution ([2]=3 mM) at -13 degrees C. Replacing 3 with 1,2-bis(4,4'-bipyridinium)ethane (4) in the three-component solution could also give rise to similar dynamic [2]catenane 2.4.5 albeit in slightly lower yield.
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Affiliation(s)
- Jing Wu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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Seyler H, Berger-Nicoletti E, Kilbinger AFM. Rod–coil copolymers from oligo(p-benzamide) foldamers. ACTA ACUST UNITED AC 2007. [DOI: 10.1039/b617598h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Slutsky MM, Jones TV, Tew GN. Spin System Assignment of Homo-o-Phenylene Ethynylene Oligomers. J Org Chem 2006; 72:342-7. [PMID: 17221948 DOI: 10.1021/jo061175f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
We previously reported the synthesis and solution characterization of short o-phenylene ethynylene (oPE) foldamers. Proton correlation techniques are not adequate for NMR assignment in these compounds as the ethynylene linkers interrupt proton connectivity. In order to facilitate structural characterization and more fully harness the power of NMR, it is necessary to know the sequence of spin systems along the molecular backbone. For example, spin system assignment is required to unambiguously assign NOE correlations for structural determination of folded forms in solution. Therefore, we developed a method to assign the aromatic spin systems in these compounds using HMBC experiments. This has been performed for tetrameric (Es4), pentameric (Es5), and hexameric (Es6) oligomers and is expected to prove useful for this class of foldamers in general. The proton assignments obtained by this technique have been useful toward confirming the previous hypotheses of helical folding in oPE systems.
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Affiliation(s)
- Morris M Slutsky
- Polymer Science & Engineering Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
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Zhu J, Lin JB, Xu YX, Jiang XK, Li ZT. Hydrogen bonding-mediated self-assembly of anthranilamide-based homodimers through preorganization of the amido and ureido binding sites. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.09.073] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Masu H, Mizutani I, Kato T, Azumaya I, Yamaguchi K, Kishikawa K, Kohmoto S. Naphthalene- and Anthracene-Based Aromatic Foldamers with Iminodicarbonyl Linkers: Their Stabilities and Application to a Chiral Photochromic System Using Retro [4 + 4] Cycloaddition. J Org Chem 2006; 71:8037-44. [PMID: 17025292 DOI: 10.1021/jo0611317] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A circular dichroism (CD) spectral study on chiral aromatic chain imides possessing anthracene and naphthalene moieties with bulky N substituents showed that their helical chirality based on folding remained for a reasonably long time without racemization in solution. Racemization due to conformational equilibration occurred very slowly, requiring over 1 week at ambient temperature. Their CD spectra both in solution and in the solid state gave similar CD signals, suggesting retention of helicity observed in the solid state even after dissolving. As an application of this novel chiral folding of aromatic chain imides, a chiral photochromic system was investigated based on the photo [4 + 4] cycloaddition and its thermal cycloreversion of an anthracene-naphthalene system. The foldamer possessing an anthracene moiety in the center connected with two naphthalene moieties below and above it by iminodicarbonyl linkers was prepared for this purpose. Induced CD was observed for the foldamer with (S)-1-(1-naphthyl)ethyl substituents at the imide nitrogen atoms. Chiral photochromic cycles were monitored by CD spectral measurement.
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Affiliation(s)
- Hyuma Masu
- Faculty of Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, Sanuki, Kagawa 769-2193, Japan
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Zhu J, Lin JB, Xu YX, Shao XB, Jiang XK, Li ZT. Hydrogen-Bonding-Mediated Anthranilamide Homoduplexes. Increasing Stability through Preorganization and Iterative Arrangement of a Simple Amide Binding Site. J Am Chem Soc 2006; 128:12307-13. [PMID: 16967982 DOI: 10.1021/ja064218i] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This paper describes the assembly of two new series of self-complementary duplexes by making use of amide units, the simplest assembling units of hydrogen bonding, as binding sites. All the new monomers possess a rigidified anthranilamide skeleton, which is stabilized by intramolecular hydrogen bonding. Amide units are iteratively introduced to one side of the preorganized skeletons to facilitate the formation of intermolecular hydrogen bonding. Compounds 2 and 3 bear two and three CONH(2) units, respectively, while 4, 6, and 7 are incorporated with two, three, and four AcNH units, respectively. For comparison, compound 5, which is similar to 4 but contains one AcNH and one CF(3)CONH unit, is also prepared. X-ray diffraction analysis of 2, 4, and 5 revealed homodimeric motifs in the solid state which are stabilized by two or more intermolecular hydrogen bonds. (1)H NMR investigations in CDCl(3) indicated that all the compounds form hydrogen-bonded homoduplexes. Duplexes 3.3, 6.6, and 7.7 are highly stable in CDCl(3), with a lower K(assoc) limit of 2.3 x 10(5) M(-1). The K(assoc) values of the three duplexes in more polar CDCl(3)/CD(3)CN (9:1, v/v) were determined with the (1)H NMR dilution method. The result opens the way for the development of new polymeric duplexes of well-ordered structures.
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Affiliation(s)
- Jiang Zhu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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Sinkeldam RW, van Houtem MHCJ, Pieterse K, Vekemans JAJM, Meijer EW. Chiral Poly(ureidophthalimide) Foldamers in Water. Chemistry 2006; 12:6129-37. [PMID: 16795110 DOI: 10.1002/chem.200600476] [Citation(s) in RCA: 72] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Poly(ureidophthalimide)s decorated with hydrophilic side chains, that ensure solubility in aqueous media, have been synthesized and characterized by UV/Vis and circular dichroism (CD) spectroscopy. Temperature and concentration dependent CD measurements in water have revealed an almost temperature and concentration independent Cotton effect, indicative for a strong intramolecular organization. Similar studies in THF demonstrate the dynamic nature of the secondary architecture, a characteristic of foldamers. In addition, the bisignated Cotton effect in water is opposite in sign to that in THF, suggestive for a solvent-dependent preference for one helical handedness. Mixing experiments prove the dominance of water in determining the handedness of the helical architecture. The solvent allows for control over the helical architecture and thus governs the supramolecular synthesis.
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Affiliation(s)
- Renatus W Sinkeldam
- Laboratory of Macromolecular and Organic Chemistry, Eindhoven University of Technology, P. O. Box 513, 5600 MB Eindhoven, The Netherlands
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Gawronski J, Kaik M, Kwit M, Rychlewska U. Solvent induced folding of conformationally bistable helical imide triads. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.05.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Change in conformation upon complexation of double-armed terephthalamide hosts: dynamic molecular recognition of ditopic guests with strong CD signaling. Tetrahedron Lett 2006. [DOI: 10.1016/j.tetlet.2006.01.022] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Mizukami J, Sugiura H, Yamaguchi M, Mushiake K. Synthesis of Helicenediamine Oligomers and Their Formation of Multilayer Structures in Aqueous Solvents. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2006. [DOI: 10.1246/bcsj.79.317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Wu ZQ, Shao XB, Li C, Hou JL, Wang K, Jiang XK, Li ZT. Hydrogen-Bonding-Driven Preorganized Zinc Porphyrin Receptors for Efficient Complexation of C60, C70, and C60 Derivatives. J Am Chem Soc 2005; 127:17460-8. [PMID: 16332098 DOI: 10.1021/ja056509h] [Citation(s) in RCA: 135] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
This paper describes the self-assembly of a new class of foldamer-based molecular tweezers, whose rigid folded conformations are stabilized by intramolecular hydrogen bonding. Two zinc porphyrin units are introduced to the ends of molecular tweezers Zn(2)1 and Zn(2)2, while three zinc porphyrin units are incorporated to the S-shaped bi-tweezers Zn(3)3, which may be regarded as a combination of two Zn(2)1 molecules. Due to the preorganized U-shaped feature, Zn(2)1 and Zn(2)2 are able to strongly complex C60, C70, and C60 derivative 25 in chloroform or toluene in a 1:1 binding stoichiometry, whereas Zn(3)3, which possesses two tweezer units, complexes the guests in a 1:2 stoichiometry. More stable complex Zn(3)3.24 is formed between Zn(3)3 and 24, a linear molecule bearing two C60 moieties at the ends, as a result of the cooperative interaction of two binding sites. Chiral induction is observed for all the three receptors upon complexation with C60-incoporated chiral phenylalanine derivative 29, although the complexation of 29 by the folding receptors is pronouncedly weaker than that of C60 and 25 due to increased steric hindrance. The driving force for the formation of the complexes is the well established pi-pi stacking between the zinc porphyrin and fullerene units. The 1H and 13C NMR, UV-vis, fluorescent, and circular dichroism spectroscopy have been used to investigate the complexing behavior of the folding receptors and the fullerene guests. The association constants of the corresponding complexes in toluene and chloroform (if possible) have been evaluated with the UV-vis and fluorescent titration experiments.
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Affiliation(s)
- Zong-Quan Wu
- State Key Laboratory of Bio-Organic and Natural Products Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 354 Fenglin Lu, Shanghai 200032, China
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Masu H, Ohmori K, Kishikawa K, Yamamoto M, Yamaguchi K, Kohmoto S. Creation of Concave-Shaped Conformation in Crystal Structures Using an Iminodicarbonyl Linker. An Application to Solid-State Intramolecular [4 + 4] Photocycloaddition Reactions of 2-Pyridone Derivatives. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2005. [DOI: 10.1246/bcsj.78.1127] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Nehls BS, Galbrecht F, Bilge A, Brauer DJ, Lehmann CW, Scherf U, Farrell T. Synthesis and spectroscopy of an oligophenyl based cruciform with remarkable π–π assisted folding. Org Biomol Chem 2005; 3:3213-9. [PMID: 16106304 DOI: 10.1039/b508125d] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A facile route has been developed for the preparation of a new family of oligophenyls based on a 2,5,2',5'-tetra-aryl substituted biphenyl structural motif. The cruciform terphenyl dimer 2,5,2',5'-tetra(4-tert-butylphenyl)-1,1'-biphenyl () has been prepared in a two step protocol as a representative of this interesting class of materials. The thermal behaviour of the cruciform was analysed by DSC and shows that forms an amorphous glass when cooled from the isotropic melt. Subsequent heating reveals a glass transition temperature at 130 degrees C. X-Ray single crystal structure analysis of 2,2'-bis(4-tert-butylphenyl)-1,1'-biphenyl () and shows that both these molecules with a quater-phenyl substructure adopt a folded solid-state structure. Examining the (1)H NMR spectra of and reveals that the interactions that induce this folding in the solid-state are sufficiently strong to bias foldamer formation also in solution. Consequently, it is reasonable to assume that the folded conformation within the lattice is due to intramolecular pi-pi interaction rather than being imposed by crystal packing. The optical properties of the cruciform terphenyl dimer are discussed relative to the linear analogue 1,4-bis(4-tert-butylterphenyl)benzene ().
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Affiliation(s)
- Benjamin S Nehls
- Bergische Universität Wuppertal, Institut für Polymertechnologie, Makromolekulare Chemie, Gauss-Strasse 20, D-42097 Wuppertal, Germany
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