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Li R, Wang D, Li S, An P. Construction of hexabenzocoronene-based chiral nanographenes. Beilstein J Org Chem 2023; 19:736-751. [PMID: 37284588 PMCID: PMC10241098 DOI: 10.3762/bjoc.19.54] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Accepted: 05/17/2023] [Indexed: 06/08/2023] Open
Abstract
The past decade witnessed remarkable success in synthetic molecular nanographenes. Encouraged by the widespread application of chiral nanomaterials, the design, and construction of chiral nanographenes is a hot topic recently. As a classic nanographene unit, hexa-peri-hexabenzocoronene generally serves as the building block for nanographene synthesis. This review summarizes the representative examples of hexa-peri-hexabenzocoronene-based chiral nanographenes.
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Affiliation(s)
- Ranran Li
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
| | - Di Wang
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
| | - Shengtao Li
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
| | - Peng An
- School of Chemical Science and Technology, Yunnan University, Kunming 650500, P. R. China
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2
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Zhang Y, Pun SH, Miao Q. The Scholl Reaction as a Powerful Tool for Synthesis of Curved Polycyclic Aromatics. Chem Rev 2022; 122:14554-14593. [PMID: 35960873 DOI: 10.1021/acs.chemrev.2c00186] [Citation(s) in RCA: 52] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The past decade has witnessed remarkable success in the synthesis of curved polycyclic aromatics through Scholl reactions which enable oxidative aryl-aryl coupling even in company with the introduction of significant steric strain. These curved polycyclic aromatics are not only unique objects of structural organic chemistry in relation to the nature of aromaticity but also play an important role in bottom-up approaches to precise synthesis of nanocarbons of unique topology. Moreover, they have received considerable attention in the fields of supramolecular chemistry and organic functional materials because of their interesting properties and promising applications. Despite the great success of Scholl reactions in synthesis of curved polycyclic aromatics, the outcome of a newly designed substrate in the Scholl reaction still cannot be predicted in a generic and precise manner largely due to limited understanding on the reaction mechanism and possible rearrangement processes. This review provides an overview of Scholl reactions with a focus on their applications in synthesis of curved polycyclic aromatics with interesting structures and properties and aims to shed light on the key factors that affect Scholl reactions in synthesizing sterically strained polycyclic aromatics.
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Affiliation(s)
- Yiqun Zhang
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Sai Ho Pun
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
| | - Qian Miao
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China
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3
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Varghese EV, Gao CF, Chang YL, Chen HY, Chen CH. Synthesis of Distorted Nitrogen-Doped Nanographenes by Partially Oxidative Cyclodehydrogenation Reaction. Chem Asian J 2022; 17:e202200114. [PMID: 35137559 DOI: 10.1002/asia.202200114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Indexed: 11/11/2022]
Abstract
A series of partially fused N-doped nanographenes are synthesized via the oxidative cyclodehydrogenation of oligoaryl-substituted dibenzo[ e,l ]pyrene ( 1 ), including compounds ( 2 - 4 ) with five, six, and seven new C-C bonds are formed, respectively, implying stepwise C-C bond fusion and extended π-conjugation. Single-crystal X-ray diffraction analysis of compound 4a revealed that the presence of sterically demanding groups hindered the formation of planar and fully fused nanographene in the oxidative cyclodehydrogenation reaction step. Optical study of compounds 2 to 4 showed that extended π-conjugation leads to a regular stepwise bathochromic shift in the absorption and emission spectra. Furthermore, the HOMO-LUMO gaps of these compounds exhibit a decrease as C-C bond formation proceeds. Thus, the optoelectronic properties of nanographenes are highly dependent on the formation of new C-C bonds in the molecular skeleton.
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Affiliation(s)
- Eldhose V Varghese
- KMU: Kaohsiung Medical University, Department of Medicinal and Applied Chemistry, TAIWAN
| | - Chen-Feng Gao
- KMU: Kaohsiung Medical University, Department of Medicinal and Applied Chemistry, TAIWAN
| | - Yu-Lun Chang
- KMU: Kaohsiung Medical University, Department of Medicinal and Applied Chemistry, TAIWAN
| | - Hsing-Yin Chen
- KMU: Kaohsiung Medical University, Department of Medicinal and Applied Chemistry, TAIWAN
| | - Chia-Hsiang Chen
- Kaohsiung Medical University, Department of Medicinal and Applied Chemistry, No.100, Shin-Chuan 1st Road, 807, Kaohsiung, TAIWAN
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4
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Borissov A, Maurya YK, Moshniaha L, Wong WS, Żyła-Karwowska M, Stępień M. Recent Advances in Heterocyclic Nanographenes and Other Polycyclic Heteroaromatic Compounds. Chem Rev 2022; 122:565-788. [PMID: 34850633 PMCID: PMC8759089 DOI: 10.1021/acs.chemrev.1c00449] [Citation(s) in RCA: 201] [Impact Index Per Article: 100.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Indexed: 12/21/2022]
Abstract
This review surveys recent progress in the chemistry of polycyclic heteroaromatic molecules with a focus on structural diversity and synthetic methodology. The article covers literature published during the period of 2016-2020, providing an update to our first review of this topic (Chem. Rev. 2017, 117 (4), 3479-3716).
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Affiliation(s)
| | | | | | | | | | - Marcin Stępień
- Wydział Chemii, Uniwersytet
Wrocławski, ul. F. Joliot-Curie 14, 50-383 Wrocław, Poland
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5
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Amaro-Gahete J, Kaczmarek AM, Esquivel D, Jiménez-Sanchidrián C, Van Der Voort P, Romero-Salguero FJ. Luminescent Graphene-Based Materials via Europium Complexation on Dipyridylpyridazine-Functionalized Graphene Sheets. Chemistry 2019; 25:6823-6830. [PMID: 30882948 DOI: 10.1002/chem.201900512] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Indexed: 11/09/2022]
Abstract
Graphene-based materials exhibit outstanding physical properties and so are potentially applicable in a great variety of fields. Unlike their corresponding oxides, graphite and graphene are not prone to functionalization. Diels-Alder reactions are among the scarce reactions that they can occur without disrupting their conjugated sp2 systems. Herein, the reaction between graphite and 3,6-di(2-pyridyl)-1,2,4,5-tetrazine under different conditions affords several graphene-based materials consisting of dipyridylpyridazine-functionalized few-layer graphene, multilayer graphene and graphite, the sheets of which act as ligands for the grafting of a europium complex. These three materials show strong red emission under 365 nm UV radiation. Their emitting particles can be visualized by confocal microscopy. The rich coordination chemistry of dipyridylpyridazine ligands has potential novel properties for similarly functionalized graphene-based materials grafted with other metal complexes.
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Affiliation(s)
- Juan Amaro-Gahete
- Departamento de Química Orgánica, Instituto Universitario de, Investigación en Química Fina y Nanoquímica IUNAN, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Ed. Marie Curie, 14071, Córdoba, Spain
| | - Anna M Kaczmarek
- COMOC, Department of Chemistry, Ghent University, Krijsglaan 281-S3, 9000, Ghent, Belgium
| | - Dolores Esquivel
- Departamento de Química Orgánica, Instituto Universitario de, Investigación en Química Fina y Nanoquímica IUNAN, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Ed. Marie Curie, 14071, Córdoba, Spain
| | - César Jiménez-Sanchidrián
- Departamento de Química Orgánica, Instituto Universitario de, Investigación en Química Fina y Nanoquímica IUNAN, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Ed. Marie Curie, 14071, Córdoba, Spain
| | - Pascal Van Der Voort
- COMOC, Department of Chemistry, Ghent University, Krijsglaan 281-S3, 9000, Ghent, Belgium
| | - Francisco J Romero-Salguero
- Departamento de Química Orgánica, Instituto Universitario de, Investigación en Química Fina y Nanoquímica IUNAN, Facultad de Ciencias, Universidad de Córdoba, Campus de Rabanales, Ed. Marie Curie, 14071, Córdoba, Spain
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Drev M, Grošelj U, Ledinek B, Perdih F, Svete J, Štefane B, Požgan F. Ruthenium(II)-Catalyzed Microwave-Promoted Multiple C-H Activation in Synthesis of Hexa(heteroaryl)benzenes in Water. Org Lett 2018; 20:5268-5273. [PMID: 30130120 DOI: 10.1021/acs.orglett.8b02169] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
A series of hexa(heteroaryl)benzenes were synthesized by the Ru(II)-carboxylate-catalyzed multiple C-H activation of benzenes carrying pyridyl, pyrimidyl, or pyrazolyl directing groups using N-heteroaryl bromides as coupling partners. The reactions proceeded with high selectivity under microwave irradiation in water. Iterative penta-arylation could be implemented via activation of C-H bonds of generated intermediates by cascade chelation assistance of in situ installed pyridyl groups. This strategy provides multidentate ligands for selective complexation of transition metals and potential building of photoredox systems.
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Affiliation(s)
- Miha Drev
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
| | - Uroš Grošelj
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
| | - Bine Ledinek
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
| | - Franc Perdih
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
| | - Jurij Svete
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
| | - Bogdan Štefane
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
| | - Franc Požgan
- Faculty of Chemistry and Chemical Technology , University of Ljubljana , Večna pot 113 , SI-1000 Ljubljana , Slovenia
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