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Prabhakaran P, Rajakumar P. Regio- and stereoselective synthesis of spiropyrrolidine-oxindole and bis-spiropyrrolizidine-oxindole grafted macrocycles through [3 + 2] cycloaddition of azomethine ylides. RSC Adv 2020; 10:10263-10276. [PMID: 35498613 PMCID: PMC9050375 DOI: 10.1039/c9ra10463a] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 02/21/2020] [Indexed: 12/16/2022] Open
Abstract
A convenient and efficient method for the regioselective macrocyclization of triazole bridged spiropyrrolidine-oxindole, and bis-spiropyrrolizidine-oxindole derivatives was accomplished through intra and self-intermolecular [3 + 2] cycloaddition of azomethine ylides. The chalcone isatin precursors 9a-i required for the click reaction were obtained from the reaction of N-alkylazidoisatin 4 and propargyloxy chalcone 8a-i which in turn were obtained by the aldol condensation of propargyloxy salicylaldehyde 6 and substituted methyl ketones 7a-i. The regio- and stereochemical outcome of the cycloadducts were assigned based on 2D NMR and confirmed by single crystal XRD analysis. High efficiency, mild reaction conditions, high regio- and stereoselectivity, atom economy and operational simplicity are the exemplary advantages of the employed macrocyclization procedure.
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Affiliation(s)
- Perumal Prabhakaran
- Department of Organic Chemistry, University of Madras Guindy Campus Chennai-600 025 Tamil Nadu India
| | - Perumal Rajakumar
- Department of Organic Chemistry, University of Madras Guindy Campus Chennai-600 025 Tamil Nadu India
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Frydrych R, Ślepokura K, Bil A, Gregoliński J. Mixed Macrocycles Derived from 2,6-Diformylpyridine and Opposite Enantiomers of trans-1,2-Diaminocyclopentane and trans-1,2-Diaminocyclohexane. J Org Chem 2019; 84:5695-5711. [PMID: 30966752 DOI: 10.1021/acs.joc.9b00614] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The condensation reaction of 2,6-diformylpyridine with an equimolar mixture of opposite enantiomers of trans-1,2-diaminocyclopentane and trans-1,2-diaminocyclohexane using a dynamic combinatorial chemistry approach has been examined. In nonmetal-templated reactions, depending on reaction conditions, mixed 2 + 1 + 1 macrocyclic imine or bigger mixed 4 + 2 + 2 imine macrocycle are formed selectively. The 2 + 1 + 1 imine used as a precursor in the templated by CdII ions produces a library of enlarged chiral mixed imines coordinated with metal cations among which the hexanuclear CdII complex of 6 + 3 + 3 imine was isolated and characterized. All macrocyclic imine compounds have been reduced to the corresponding macrocyclic amines, which have been further transformed into their hydrochlorides. Each macrocyclic compound has been obtained as two enantiomers. For imine macrocycles and for the hydrochloride derivatives of macrocyclic amines, their X-ray crystal structures have been determined. In particular, the crystals of protonated 4 + 2 + 2 macrocyclic amine, which contains two types of diastereomeric cations differing in terms of inverted twists of pyridine moieties, and hexanuclear CdII complex of 6 + 3 + 3 imine, which gives a deeper insight into the expansion reaction, have been investigated. A heterochiral self-sorting of 2 + 2 and 2 + 1 + 1 macrocyclic imines has been confirmed by a competition reaction of 2,6-diformylpyridine, racemic trans-1,2-diaminocyclopentane, and racemic trans-1,2-diaminocyclohexane and theoretical calculations.
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Affiliation(s)
- Rafał Frydrych
- Department of Chemistry , University of Wrocław , 14 F. Joliot-Curie , 50-383 Wrocław , Poland
| | - Katarzyna Ślepokura
- Department of Chemistry , University of Wrocław , 14 F. Joliot-Curie , 50-383 Wrocław , Poland
| | - Andrzej Bil
- Department of Chemistry , University of Wrocław , 14 F. Joliot-Curie , 50-383 Wrocław , Poland
| | - Janusz Gregoliński
- Department of Chemistry , University of Wrocław , 14 F. Joliot-Curie , 50-383 Wrocław , Poland
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Šalitroš I, Fuhr O, Gál M, Valášek M, Ruben M. Photoisomerization of Bis(tridentate) 2,6-Bis(1H
-pyrazol-1-yl)pyridine Ligands Exhibiting a Multi-anthracene Skeleton. Chemistry 2017; 23:10100-10109. [DOI: 10.1002/chem.201700825] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Ivan Šalitroš
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Department of Inorganic Chemistry; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava 81237 Slovak Republic
| | - Olaf Fuhr
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Karlsruhe Nano-Micro Facility (KNMF); Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Miroslav Gál
- Department of Inorganic Chemistry; Faculty of Chemical and Food Technology; Slovak University of Technology; Bratislava 81237 Slovak Republic
| | - Michal Valášek
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
| | - Mario Ruben
- Institute of Nanotechnology; Karlsruhe Institute of Technology (KIT); Hermann-von-Helmholtz-Platz 1 76344 Eggenstein-Leopoldshafen Germany
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS); CNRS-Université de Strasbourg, 23; rue du Loess, BP 43 67034 Strasbourg cedex 2 France
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Müller V, Hungerland T, Baljozovic M, Jung T, Spencer ND, Eghlidi H, Payamyar P, Schlüter AD. Ink-Free Reversible Optical Writing in Monolayers by Polymerization of a Trifunctional Monomer: Toward Rewritable "Molecular Paper". ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2017; 29:1701220. [PMID: 28485053 DOI: 10.1002/adma.201701220] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2017] [Indexed: 06/07/2023]
Abstract
A Langmuir-Blodgett film consisting of a dense array of trifunctional monomers bearing three 1,8-diazaanthracene units is polymerized at an air/water interface or after transfer on solid substrates. The transfer does not affect the excimer fluorescence of the film, indicating that the monomers' packing with their diazaanthracene units stacked face-to-face is retained-a prerequisite for successful polymerization. The monomer film can be polymerized in confined areas on solid substrates by UV irradiation with a confocal microscope laser. The underlying chemistry of the polymerization, a [4+4]-cycloaddition of the diazaanthracene units, leads to disappearance of the fluorescence in the irradiated regions which enables writing into the monolayer on a µm scale-thus the term "molecular paper." The reaction can be reversed by heating which leads to a recovery of the fluorescence and to erasing of the writing. Alternative pathways for this phenomenon are discussed and control experiments are conducted to rule them out.
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Affiliation(s)
- Vivian Müller
- Laboratory of Polymer Chemistry, Swiss Federal Institute of Technology (ETH Zurich), Vladimir-Prelog-Weg 5, Zurich, 8093, Switzerland
| | - Tim Hungerland
- Laboratory of Polymer Chemistry, Swiss Federal Institute of Technology (ETH Zurich), Vladimir-Prelog-Weg 5, Zurich, 8093, Switzerland
| | - Milos Baljozovic
- Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Thomas Jung
- Laboratory for Micro- and Nanotechnology, Paul Scherrer Institute, 5232, Villigen, Switzerland
| | - Nicholas D Spencer
- Laboratory for Surface Science and Technology, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich, 8093, Switzerland
| | - Hadi Eghlidi
- Laboratory of Thermodynamics in Emerging Technologies, Department of Mechanical and Process Engineering, ETH Zurich, Sonneggstrasse 3, 8092, Zurich, Switzerland
| | - Payam Payamyar
- Laboratory of Polymer Chemistry, Swiss Federal Institute of Technology (ETH Zurich), Vladimir-Prelog-Weg 5, Zurich, 8093, Switzerland
| | - A Dieter Schlüter
- Laboratory of Polymer Chemistry, Swiss Federal Institute of Technology (ETH Zurich), Vladimir-Prelog-Weg 5, Zurich, 8093, Switzerland
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Gregoliński J, Ślepokura K, Paćkowski T, Panek J, Stefanowicz P, Lisowski J. From 2 + 2 to 8 + 8 Condensation Products of Diamine and Dialdehyde: Giant Container-Shaped Macrocycles for Multiple Anion Binding. J Org Chem 2016; 81:5285-94. [DOI: 10.1021/acs.joc.6b00531] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Janusz Gregoliński
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Katarzyna Ślepokura
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Tomasz Paćkowski
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Jarosław Panek
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Piotr Stefanowicz
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
| | - Jerzy Lisowski
- Department
of Chemistry, University of Wrocław, 14 F. Joliot-Curie, 50-383 Wrocław, Poland
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Abstract
We demonstrate the synthesis and characterization of the solution conformations of a collection of functionalized spiroligomer-based macrocycles. These macrocycles contain 14 independently controllable stereocenters and four independently controllable functional groups on a highly preorganized scaffold. These molecules are being developed to display complex, preorganized surfaces for binding proteins and to create enzyme-like active sites. In this work, we demonstrate the convergent synthetic approach to this new class of macrocycles and demonstrate that the conformational properties of these molecules can be changed by altering the configuration stereocenters within the backbone.
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Affiliation(s)
- Qingquan Zhao
- Department of Chemistry, Temple University , 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
| | - Christian E Schafmeister
- Department of Chemistry, Temple University , 1901 North 13th Street, Philadelphia, Pennsylvania 19122, United States
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Gregoliński J, Ślepokura K, Paćkowski T, Lisowski J. Expansion of a 2 + 2 Macrocycle into a 6 + 6 Macrocycle: Template Effect of Cadmium(II). Org Lett 2014; 16:4372-5. [DOI: 10.1021/ol501602f] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Janusz Gregoliński
- Department of Chemistry, University of Wrocław, 14 F.
Joliot-Curie, 50-383 Wrocław, Poland
| | - Katarzyna Ślepokura
- Department of Chemistry, University of Wrocław, 14 F.
Joliot-Curie, 50-383 Wrocław, Poland
| | - Tomasz Paćkowski
- Department of Chemistry, University of Wrocław, 14 F.
Joliot-Curie, 50-383 Wrocław, Poland
| | - Jerzy Lisowski
- Department of Chemistry, University of Wrocław, 14 F.
Joliot-Curie, 50-383 Wrocław, Poland
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Chen Y, Li M, Payamyar P, Zheng Z, Sakamoto J, Schlüter AD. Room Temperature Synthesis of a Covalent Monolayer Sheet at Air/Water Interface Using a Shape-Persistent Photoreactive Amphiphilic Monomer. ACS Macro Lett 2014; 3:153-158. [PMID: 35590496 DOI: 10.1021/mz400597k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The shape-persistent monomer 3 with its three 1,8-diazaanthracene (DAA) units is spread and compressed at the air/water interface and the layer then converted into a 1.5 nm thick covalent monolayer sheet by photoirradiation under ambient conditions. The sheet obtained under these extremely mild conditions is mechanically stable to carry its own weight when spanned over TEM grids. While its molecular structure cannot be given yet with certainty, it is likely to be the result of [4 + 4]-cycloaddition dimerizations between the DAA units of neighboring monomers. Evidence is based on the wavelength of the monomer fluorescence emission, the kinetics of this emission's intensity decay with irradiation time, and the mechanical sheet stability that suggests a surpassing of percolation threshold. Finally, the thermal stability of the sheet is investigated.
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Affiliation(s)
- Yougen Chen
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Ming Li
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Payam Payamyar
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Zhikun Zheng
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - Junji Sakamoto
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
| | - A. Dieter Schlüter
- Laboratory of Polymer Chemistry, Department of Materials, Swiss Federal Institute of Technology, ETH Zürich, HCI J 541, CH-8093 Zürich, Switzerland
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