1
|
Yamada M. Perspectives on push-pull chromophores derived from click-type [2 + 2] cycloaddition-retroelectrocyclization reactions of electron-rich alkynes and electron-deficient alkenes. Beilstein J Org Chem 2024; 20:125-154. [PMID: 38292046 PMCID: PMC10825803 DOI: 10.3762/bjoc.20.13] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2023] [Accepted: 01/04/2024] [Indexed: 02/01/2024] Open
Abstract
Various push-pull chromophores can be synthesized in a single and atom-economical step through [2 + 2] cycloaddition-retroelectrocyclization (CA-RE) reactions involving diverse electron-rich alkynes and electron-deficient alkenes. In this review, a comprehensive investigation of the recent and noteworthy advancements in the research on push-pull chromophores prepared via the [2 + 2] CA-RE reaction is conducted. In particular, an overview of the physicochemical properties of the family of these compounds that have been investigated is provided to clarify their potential for future applications.
Collapse
Affiliation(s)
- Michio Yamada
- Department of Chemistry, Tokyo Gakugei University, Nukuikitamachi 4-1-1, Koganei, Tokyo 184-8501, Japan
| |
Collapse
|
2
|
Galibert-Guijarro A, Mouysset D, Mimoun L, Bertrand MP, Feray L. Ynamides in Radical Reactions: A Route to Original Persubstituted 2-Aminofurans. J Org Chem 2023; 88:2464-2473. [PMID: 36715251 DOI: 10.1021/acs.joc.2c02906] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Mn(OAc)3/Cu(OAc)2-mediated reaction between ynamides, derived from oxazolidone or 3-methylindole carboxylate, and cyclic α-dicarbonyl radicals led to the one-pot synthesis of 2-aminofurans. The transformation involves addition of the α-dicarbonyl radical to ynamide, oxidation to ketene-iminium, and polar cyclization steps to provide original persubstituted 2-aminofurans in good to excellent yields. This work represents the first radical route for the synthesis of furans from ynamides.
Collapse
Affiliation(s)
- Aurélien Galibert-Guijarro
- Aix Marseille Univ, CNRS, ICR, Institut de Chimie Radicalaire, UMR 7273, Equipe CMO, Campus Saint-Jérôme, 13013 Marseille, France
| | - Dominique Mouysset
- Aix Marseille Univ, CNRS, ICR, Institut de Chimie Radicalaire, UMR 7273, Equipe CMO, Campus Saint-Jérôme, 13013 Marseille, France
| | - Liliane Mimoun
- Aix Marseille Univ, CNRS, ICR, Institut de Chimie Radicalaire, UMR 7273, Equipe CMO, Campus Saint-Jérôme, 13013 Marseille, France
| | - Michèle P Bertrand
- Aix Marseille Univ, CNRS, ICR, Institut de Chimie Radicalaire, UMR 7273, Equipe CMO, Campus Saint-Jérôme, 13013 Marseille, France
| | - Laurence Feray
- Aix Marseille Univ, CNRS, ICR, Institut de Chimie Radicalaire, UMR 7273, Equipe CMO, Campus Saint-Jérôme, 13013 Marseille, France
| |
Collapse
|
3
|
Quintavalla A, Veronesi R, Speziali L, Martinelli A, Zaccheroni N, Mummolo L, Lombardo M. Allenamides Playing Domino: A Redox‐Neutral Photocatalytic Synthesis of Functionalized 2‐Aminofurans. Adv Synth Catal 2022. [DOI: 10.1002/adsc.202101015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Arianna Quintavalla
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Ruben Veronesi
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Laura Speziali
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Ada Martinelli
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Nelsi Zaccheroni
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Liviana Mummolo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| | - Marco Lombardo
- Alma Mater Studiorum – University of Bologna Department of Chemistry “G. Ciamician” Via Selmi 2 40126 Bologna Italy
| |
Collapse
|
4
|
Elwahy AHM, Abdelhamid IA, Shaaban MR. Recent Advances in the Functionalization of Azulene Through Pd‐Catalyzed Cross‐Coupling Reactions. ChemistrySelect 2021. [DOI: 10.1002/slct.202103357] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | | | - Mohamed R. Shaaban
- Chemistry Department Faculty of Science Cairo University Giza Egypt
- Chemistry Department Faculty of Applied Science Umm Al-Qura University Makkah Almukkarramah Saudi Arabia
| |
Collapse
|
5
|
Miyairi A, Oonishi Y, Sato Y. One-pot synthesis of tetrasubstituted 2-aminofurans via Au(I)-catalyzed cascade reaction of ynamides with propargylic alcohols. Org Biomol Chem 2021; 19:9396-9400. [PMID: 34704997 DOI: 10.1039/d1ob01910d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
One-pot synthesis of fully substituted 2-aminofurans via a Au(I)-catalyzed cascade reaction of ynamides and propargylic alcohol was realized. Hydroalkoxylation of ynamide with propargylic alcohol, Saucy-Marbet rearrangement, and cyclization of the resultant 3,4-dienamide sequentially proceeds in a one-pot reaction under highly mild conditions to give fully substituted 2-aminofurans.
Collapse
Affiliation(s)
- Asaki Miyairi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
| | - Yoshihiro Oonishi
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
| | - Yoshihiro Sato
- Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060-0812, Japan.
| |
Collapse
|
6
|
Elwahy AHM, Hafner K. Alkynylazulenes as Building Blocks for Highly Unsaturated Scaffolds. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202100301] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
| | - Klaus Hafner
- Clemens Schöpf-Institut für Organische Chemie und Biochemie Technische Universität, Darmstadt Petersenstraβe 22 D-64287 Darmstadt Germany
| |
Collapse
|
7
|
Zheng Y, Perfetto A, Luise D, Ciofini I, Miesch L. Direct Synthesis of CF 2H-Substituted 2-Amidofurans via Copper-Catalyzed Addition of Difluorinated Diazoacetone to Ynamides. Org Lett 2021; 23:5528-5532. [PMID: 34190568 DOI: 10.1021/acs.orglett.1c01876] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The significance of molecules containing difluoromethyl groups is driven by their potential applications in pharmaceutical and agrochemical science. Methods for the incorporation of lightly fluorinated groups such as CF2H have been less well developed. Here we report the use of difluorinated diazoacetone as a practical reagent for the direct synthesis of CF2H-substituted 2-amidofurans through addition to ynamides. These newly designed difluorinated amidofurans were elaborated to create new nitrogen-containing frameworks that would be challenging to obtain otherwise.
Collapse
Affiliation(s)
- Yongxiang Zheng
- Equipe Synthèse Organique et Phytochimie, Institut de Chimie, CNRS-UdS, UMR 7177, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| | - Anna Perfetto
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group, F-75005 Paris, France
| | - Davide Luise
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group, F-75005 Paris, France
| | - Ilaria Ciofini
- Chimie ParisTech, PSL University, CNRS, Institute of Chemistry for Life and Health Sciences, Chemical Theory and Modelling Group, F-75005 Paris, France
| | - Laurence Miesch
- Equipe Synthèse Organique et Phytochimie, Institut de Chimie, CNRS-UdS, UMR 7177, 4 rue Blaise Pascal, CS 90032, 67081 Strasbourg, France
| |
Collapse
|
8
|
Komogortsev AN, Melekhina VG, Lichitsky BV, Minyaev ME. Novel one-pot approach to 2-aminofuran derivatives via multicomponent reaction of 3-hydroxy-4H-pyran-4-ones, α-ketoaldehydes and methylene active nitriles. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2020.152384] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
|
9
|
Development of Heterocycle-Substituted and Fused Azulenes in the Last Decade (2010-2020). Int J Mol Sci 2020; 21:ijms21197087. [PMID: 32992955 PMCID: PMC7582284 DOI: 10.3390/ijms21197087] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2020] [Revised: 09/22/2020] [Accepted: 09/22/2020] [Indexed: 02/06/2023] Open
Abstract
Azulene derivatives with heterocyclic moieties in the molecule have been synthesized for applications in materials science by taking advantage of their unique properties. These derivatives have been prepared by various methods, involving electrophilic substitution, condensation, cyclization, and transition metal-catalyzed cross-coupling reactions. Herein, we present the development of the synthetic methods, reactivities, and physical properties for the heterocycle-substituted and heterocycle-fused azulenes reported in the last decade.
Collapse
|
10
|
Shoji T, Miura K, Ariga Y, Yamazaki A, Ito S, Yasunami M. Synthesis of thiophene-fused heptalenes by cycloaddition of azulenothiophenes with dimethyl acetylenedicarboxylate. Sci Rep 2020; 10:12477. [PMID: 32719442 PMCID: PMC7385116 DOI: 10.1038/s41598-020-69425-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/06/2020] [Indexed: 11/09/2022] Open
Abstract
Heptalene has a fused structure of two cycloheptatrienes which is one of the non-aromatic bicyclic molecules with a 12π-electronic structure. We report herein the synthesis of thiophene-fused heptalene derivatives from the corresponding azulenothiophenes via cycloaddition reaction with dimethyl acetylenedicarboxylate. Their structure was clarified by single-crystal X-ray structural analysis. The electronic properties of the thiophene-fused heptalenes obtained by this study were characterized by UV/Vis and fluorescence spectroscopy measurements. The electrochemical features of these derivatives were also examined by voltammetry and spectroelectrochemical experiments.
Collapse
Affiliation(s)
- Taku Shoji
- Department of Material Science, Graduate School of Science and Technology, Shinshu University, Matsumoto, Nagano, 390-8621, Japan.
| | - Kota Miura
- Department of Material Science, Graduate School of Science and Technology, Shinshu University, Matsumoto, Nagano, 390-8621, Japan
| | - Yukino Ariga
- Department of Material Science, Graduate School of Science and Technology, Shinshu University, Matsumoto, Nagano, 390-8621, Japan
| | - Akari Yamazaki
- Department of Material Science, Graduate School of Science and Technology, Shinshu University, Matsumoto, Nagano, 390-8621, Japan
| | - Shunji Ito
- Graduate School of Science and Technology, Hirosaki University, Hirosaki, Aomori, 036-8561, Japan
| | - Masafumi Yasunami
- Department of Chemical Biology and Applied Chemistry, College of Engineering, Nihon University, Koriyama, Fukushima, 963-8642, Japan
| |
Collapse
|
11
|
Wang LC, Geng HQ, Peng JB, Wu XF. Iron-Catalyzed Synthesis of 2-Aminofurans from 2-Haloketones and Tertiary Amines or Enamines. European J Org Chem 2020. [DOI: 10.1002/ejoc.202000293] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Le-Cheng Wang
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou People's Republic of China
| | - Hui-Qing Geng
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou People's Republic of China
| | - Jin-Bao Peng
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou People's Republic of China
| | - Xiao-Feng Wu
- Department of Chemistry; Zhejiang Sci-Tech University; Xiasha Campus 310018 Hangzhou People's Republic of China
- Leibniz-Institut für Katalyse e. V. an der Universität Rostock; Albert-Einstein-Straße 29a 18059 Rostock Germany
| |
Collapse
|
12
|
Shoji T, Takagaki S, Ariga Y, Yamazaki A, Takeuchi M, Ohta A, Sekiguchi R, Mori S, Okujima T, Ito S. Molecular Transformation to Pyrroles, Pentafulvenes, and Pyrrolopyridines by [2+2] Cycloaddition of Propargylamines with Tetracyanoethylene. Chemistry 2020; 26:1931-1935. [DOI: 10.1002/chem.201904926] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 11/14/2019] [Indexed: 12/28/2022]
Affiliation(s)
- Taku Shoji
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Sho Takagaki
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Yukino Ariga
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Akari Yamazaki
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Mutsumi Takeuchi
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Akira Ohta
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Ryuta Sekiguchi
- Department of Material Science Graduate School of, Science and Technology Shinshu University Matsumoto 390-8621 Nagano Japan
| | - Shigeki Mori
- Advanced Research Support Center Ehime University Matsuyama 790-8577 Ehime Japan
| | - Tetsuo Okujima
- Department of Chemistry and Biology Graduate School of, Science and Engineering Ehime University Matsuyama 790-8577 Ehime Japan
| | - Shunji Ito
- Graduate School of Science and Technology Hirosaki University Hirosaki 036-8561 Aomori Japan
| |
Collapse
|
13
|
Shoji T, Iida N, Yamazaki A, Ariga Y, Ohta A, Sekiguchi R, Nagahata T, Nagasawa T, Ito S. Synthesis of phthalimides cross-conjugated with an azulene ring, and their structural, optical and electrochemical properties. Org Biomol Chem 2020; 18:2274-2282. [PMID: 32150201 DOI: 10.1039/d0ob00164c] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The preparation of phthalimides cross-conjugated with an azulene ring was established by a one-pot Diels-Alder reaction of the corresponding 2-aminofuran derivatives with several maleimides, without the isolation of the intermediately formed [4 + 2] cycloadducts. The structure, optical and electrochemical properties of the novel phthalimide derivatives were clarified by single-crystal X-ray analysis, UV/Vis and fluorescence spectra, spectroelectrochemistry and voltammetry experiments, and theoretical calculations. These results indicated that the substituents on the azulene ring greatly affect the optical and electrochemical properties of the molecules.
Collapse
Affiliation(s)
- Taku Shoji
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Nanami Iida
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Akari Yamazaki
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Yukino Ariga
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Akira Ohta
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Ryuta Sekiguchi
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | - Tatsuki Nagahata
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Aomori, Japan
| | - Takuya Nagasawa
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Aomori, Japan
| | - Shunji Ito
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Aomori, Japan
| |
Collapse
|
14
|
Abstract
Azulene, a nonalternant bicyclic aromatic hydrocarbon, has unique chemical and physical properties and is considered to be a promising building block for constructing novel polycyclic aromatic hydrocarbons (PAHs) and heteroaromatics. We present here the first two azulene-based BN-heteroaromatics Az-BN-1 and Az-BN-2. The chemical structures and optical and electrochemical properties of both compounds have been investigated, as well as their sensing behavior in response to fluoride ion. Az-BN-1 and Az-BN-2 show different photophysical properties from other reported BN-embedded PAHs, such as lower band gaps and unusual fluorescence. In addition, Az-BN-1 and Az-BN-2 exhibit unexpected deboronization upon addition of trifluoroacetic acid, which distinguishes them from other reported BN-heteroaromatics and can be ascribed to the unique property of the azulene unit.
Collapse
Affiliation(s)
- Hanshen Xin
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Jing Li
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| | - Xiaodi Yang
- Innovation Research Institute of Traditional Chinese Medicine , Shanghai University of Traditional Chinese Medicine , 1200 Cailun Road , Shanghai 201203 , China
| | - Xike Gao
- Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry , University of Chinese Academy of Sciences, Chinese Academy of Sciences , 345 Lingling Road , Shanghai 200032 , China
| |
Collapse
|
15
|
Shoji T, Miura K, Araki T, Maruyama A, Ohta A, Sekiguchi R, Ito S, Okujima T. Synthesis of 2-Methyl-1-azulenyl Tetracyanobutadienes and Dicyanoquinodimethanes: Substituent Effect of 2-Methyl Moiety on the Azulene Ring toward the Optical and Electrochemical Properties. J Org Chem 2018; 83:6690-6705. [DOI: 10.1021/acs.joc.8b01067] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Taku Shoji
- Graduate School of Science and Technology, Shinshu University, Matsumoto 390-8621, Japan
| | - Kota Miura
- Graduate School of Science and Technology, Shinshu University, Matsumoto 390-8621, Japan
| | - Takanori Araki
- Graduate School of Science and Technology, Shinshu University, Matsumoto 390-8621, Japan
| | - Akifumi Maruyama
- Graduate School of Science and Technology, Shinshu University, Matsumoto 390-8621, Japan
| | - Akira Ohta
- Graduate School of Science and Technology, Shinshu University, Matsumoto 390-8621, Japan
| | - Ryuta Sekiguchi
- Graduate School of Science and Technology, Shinshu University, Matsumoto 390-8621, Japan
| | - Shunji Ito
- Graduate School of Science and Technology, Hirosaki University, Hirosaki 036-8561, Japan
| | - Tetsuo Okujima
- Graduate School of Science and Engineering, Ehime University, Matsuyama 790-8577, Japan
| |
Collapse
|
16
|
Michinobu T, Diederich F. The [2+2] Cycloaddition-Retroelectrocyclization (CA-RE) Click Reaction: Facile Access to Molecular and Polymeric Push-Pull Chromophores. Angew Chem Int Ed Engl 2018; 57:3552-3577. [DOI: 10.1002/anie.201711605] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Tsuyoshi Michinobu
- Department of Materials Science and Engineering; Tokyo Institute of Technology; 2-12-1 Ookayama, Meguro-ku Tokyo 1 52-8552 Japan
| | - François Diederich
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| |
Collapse
|
17
|
Michinobu T, Diederich F. Die [2+2]-Cycloadditions-Retroelektrocyclisierungs(CA-RE)-Klick-Reaktion: ein einfacher Zugang zu molekularen und polymeren Push-pull-Chromophoren. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201711605] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Tsuyoshi Michinobu
- Department of Materials Science and Engineering; Tokyo Institute of Technology; 2-12-1 Ookayama, Meguro-ku Tokyo 152-8552 Japan
| | - François Diederich
- Laboratorium für Organische Chemie; ETH-Zürich; Vladimir-Prelog-Weg 3 8093 Zürich Schweiz
| |
Collapse
|
18
|
Shoji T, Ito S. The Preparation and Properties of Heteroarylazulenes and Hetero-Fused Azulenes. ADVANCES IN HETEROCYCLIC CHEMISTRY 2018. [DOI: 10.1016/bs.aihch.2018.02.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
|
19
|
Shoji T, Tanaka M, Takagaki S, Miura K, Ohta A, Sekiguchi R, Ito S, Mori S, Okujima T. Synthesis of azulene-substituted benzofurans and isocoumarins via intramolecular cyclization of 1-ethynylazulenes, and their structural and optical properties. Org Biomol Chem 2018; 16:480-489. [PMID: 29270584 DOI: 10.1039/c7ob02861j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
The preparation of azulene-substituted benzofurans and isocoumarins was established by two types of intramolecular cyclization reaction of 1-ethynylazulenes.
Collapse
Affiliation(s)
- Taku Shoji
- Graduate School of Science and Technology
- Shinshu University
- Matsumoto
- Japan
| | - Miwa Tanaka
- Graduate School of Science and Technology
- Shinshu University
- Matsumoto
- Japan
| | - Sho Takagaki
- Graduate School of Science and Technology
- Shinshu University
- Matsumoto
- Japan
| | - Kota Miura
- Graduate School of Science and Technology
- Shinshu University
- Matsumoto
- Japan
| | - Akira Ohta
- Graduate School of Science and Technology
- Shinshu University
- Matsumoto
- Japan
| | - Ryuta Sekiguchi
- Graduate School of Science and Technology
- Shinshu University
- Matsumoto
- Japan
| | - Shunji Ito
- Graduate School of Science and Technology
- Hirosaki University
- Hirosaki 036-8561
- Japan
| | - Shigeki Mori
- Advanced Research Support Center
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Tetsuo Okujima
- Department of Chemistry and Biology
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| |
Collapse
|
20
|
Wang Y, Michinobu T. Polymeric Chemosensors: A Conventional Platform with New Click Chemistry. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2017. [DOI: 10.1246/bcsj.20170294] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Yang Wang
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552
| | - Tsuyoshi Michinobu
- Department of Materials Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8552
| |
Collapse
|
21
|
Shoji T, Ito S. Azulene-Based Donor-Acceptor Systems: Synthesis, Optical, and Electrochemical Properties. Chemistry 2017; 23:16696-16709. [DOI: 10.1002/chem.201702806] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2017] [Indexed: 12/26/2022]
Affiliation(s)
- Taku Shoji
- Department of Material Science; Graduate School of Science and Technology; Shinshu University, Matsumoto; 390-8621 Nagano Japan
| | - Shunji Ito
- Graduate School of Science and Technology; Hirosaki University, Hirosaki; 036-8561 Aomori Japan
| |
Collapse
|
22
|
Shoji T, Sugiyama S, Araki T, Ohta A, Sekiguchi R, Ito S, Mori S, Okujima T, Yasunami M. Synthesis of 2-amino- and 2-arylazoazulenes via nucleophilic aromatic substitution of 2-chloroazulenes with amines and arylhydrazines. Org Biomol Chem 2017; 15:3917-3923. [PMID: 28426084 DOI: 10.1039/c7ob00691h] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The SNAr reaction of 2-chloroazulene derivative 1 with ethoxycarbonyl groups at the 1,3-positions of the azulene ring with several amines afforded the corresponding 2-aminoazulenes 3-9 in excellent yields. 2-Chloroazulene (2) without the electron-withdrawing groups reacted with highly nucleophilic cyclic amines (i.e., morpholine, piperidine and pyrrolidine) under the high-temperature conditions in a sealed tube to produce the corresponding 2-aminoazulenes 10-12 in good yields. 2-Aminoazulenes 10-14 without the electron-withdrawing groups were also obtained in good yields by the treatment of compounds 3-7 with 100% H3PO4, but in the cases of the reaction of 8 and 9 with a secondary amine function, the decomposition of the products resulted. The synthesis of 2-arylazoazulenes 15-18 was also established via the SNAr reaction of 1 with arylhydrazines. The optical and electrochemical properties of the 2-arylazoazulene derivatives were examined by UV/Vis spectroscopy, theoretical calculations and voltammetric experiments.
Collapse
Affiliation(s)
- Taku Shoji
- Graduate School of Science and Technology, Shinshu University, Matsumoto, 390-8621, Nagano, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Shoji T, Takagaki S, Tanaka M, Araki T, Sugiyama S, Sekiguchi R, Ohta A, Ito S, Okujima T. Synthesis of Azulene-Substituted Tetraarylpyrroles by Reaction of 1-Azulenyl Ketones with Benzoin and Ammonium Acetate. HETEROCYCLES 2017. [DOI: 10.3987/com-17-13781] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|