1
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Vandeputte E, Antonetti E, Nava P, Dutasta JP, Chatelet B, Moraleda D, Nuel D, Giordano L, Martinez A. Straightforward Access to Chiral Phosphangulene Derivatives. J Org Chem 2024; 89:5314-5319. [PMID: 38568746 DOI: 10.1021/acs.joc.3c02674] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2024]
Abstract
Polycyclic aromatic hydrocarbons including heteroatoms have found a wide range of applications, for instance, in supramolecular chemistry or material science. Phosphangulene derivatives are P-containing polycyclic aromatic hydrocarbons presenting a concave aromatic surface suitable for building supramolecular receptors. However, the applications of this convenient building block have been strongly hampered by a difficult and multistep preparation requiring several protection-deprotection sequences along with the use of harmful reagents. Here, we report a straightforward, protecting-group-free, three-step, and hundred-milligram-scale synthesis of a chiral phosphangulene oxide derivative via a triple phospho-Fries rearrangement. This compound was easily resolved by chiral HPLC and further functionalized, giving rise to versatile chiral phosphangulene derivatives. Following this strategy, chiral phosphangulene oxides with low symmetry were synthesized. Molecular crystal structures revealed a variety of molecular organization in the solid. This opens the way to wider use of this compound as a building block for cages or new materials.
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Affiliation(s)
- Emile Vandeputte
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Elise Antonetti
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Paola Nava
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Jean-Pierre Dutasta
- ENS Lyon, CNRS, Laboratoire de Chimie, UMR 5182, 46 Allée d'Italie, 69364 Lyon, France
| | - Bastien Chatelet
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Delphine Moraleda
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Didier Nuel
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Laurent Giordano
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
| | - Alexandre Martinez
- Aix Marseille Univ, CNRS, Centrale Marseille, iSm2, 13013 Marseille, France
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2
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Wang FF, Wang YX, Wu Q, Chai L, Chen XW, Tan YZ. Nanographene with a Nitrogen-Doped Cavity. Angew Chem Int Ed Engl 2024; 63:e202315302. [PMID: 38009464 DOI: 10.1002/anie.202315302] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/14/2023] [Accepted: 11/23/2023] [Indexed: 11/28/2023]
Abstract
Nitrogen-doped cavities are pervasive in graphenic materials, and represent key sites for catalytic and electrochemical activity. However, their structures are generally heterogeneous. In this study, we present the synthesis of a well-defined molecular cutout of graphene featuring N-doped cavity. The graphitization of a macrocyclic pyridinic precursor was achieved through photochemical cyclodehydrochlorination. In comparison to its counterpart with pyridinic nitrogen at the edges, the pyridinic nitrogen atoms in this nanographene cavity exhibit significantly reduced basicity and selective binding to Ag+ ion. Analysis of the protonation and coordination equilibria revealed that the tri-N-doped cavity binds three protons, but only one Ag+ ion. These distinct protonation and coordination behaviors clearly illustrate the space confinement effect imparted by the cavities.
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Affiliation(s)
- Fei-Fan Wang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yu-Xiang Wang
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Qiong Wu
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Ling Chai
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Xuan-Wen Chen
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
| | - Yuan-Zhi Tan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen, 361005, China
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3
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Daher A, Bousfiha A, Tolbatov I, Mboyi CD, Cattey H, Roisnel T, Fleurat-Lessard P, Hissler M, Hierso JC, Bouit PA, Roger J. Tetrazo[1,2-b]indazoles: Straightforward Access to Nitrogen-Rich Polyaromatics from s-Tetrazines. Angew Chem Int Ed Engl 2023; 62:e202300571. [PMID: 36710261 DOI: 10.1002/anie.202300571] [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: 01/12/2023] [Revised: 01/27/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023]
Abstract
The straightforward access to a new class of aza-polyaromatics is reported. Starting from readily available fluorinated s-tetrazine, a cyclization process with azide leads to the formation of an unprecedented tetrazo[1,2-b]indazole or a bis-tetrazo[1,2-b]indazole (cis and trans conformers). Based on the new nitrogen core, further N-directed palladium-catalyzed ortho-C-H bond functionalization allows the introduction of halides or acetates. The physicochemical properties of these compounds were studied by a joint experimental/theoretical approach. The tetrazo[1,2-b]indazoles display solid-state π-stacking, low reduction potential, absorption in the visible range up to the near-infrared, and intense fluorescence, depending on the molecular structure.
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Affiliation(s)
- Ahmad Daher
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | - Asmae Bousfiha
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | - Iogann Tolbatov
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | - Clève D Mboyi
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | | | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | | | - Jean-Cyrille Hierso
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
| | | | - Julien Roger
- Institut de Chimie Moléculaire de l'Université de Bourgogne, UMR CNRS 6302 -, Université Bourgogne (UB) 9, avenue Alain Savary, 21078, Dijon, France
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4
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Chai L, Ju Y, Xing J, Ma X, Zhao X, Tan Y. Nanographene Metallaprisms: Structure, Stimulated Transformation, and Emission Enhancement. Angew Chem Int Ed Engl 2022; 61:e202210268. [DOI: 10.1002/anie.202210268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Ling Chai
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Yang‐Yang Ju
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Jiang‐Feng Xing
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xiao‐Hui Ma
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Xin‐Jing Zhao
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
| | - Yuan‐Zhi Tan
- State Key Laboratory for Physical Chemistry of Solid Surfaces, and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 China
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5
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Ruiz-Zambrana C, Dubey RK, Poyatos M, Mateo-Alonso A, Peris E. Redox-Switchable Complexes Based on Nanographene-NHCs. Chemistry 2022; 28:e202201384. [PMID: 35638131 PMCID: PMC9400984 DOI: 10.1002/chem.202201384] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Indexed: 12/22/2022]
Abstract
A series of rhodium and iridium complexes with a N‐heterocyclic carbene (NHC) ligand decorated with a perylene‐diimide‐pyrene moiety are described. Electrochemical studies reveal that the complexes can undergo two successive one‐electron reduction events, associated to the reduction of the PDI moiety attached to the NHC ligand. The reduction of the ligand produces a significant increase on its electron‐donating character, as observed from the infrared spectroelectrochemical studies. The rhodium complex was tested in the [3+2] cycloaddition of diphenylcyclopropenone and methylphenylacetylene, where it displayed a redox‐switchable behavior. The neutral complex showed moderate activity, which was suppressed when the catalyst was reduced.
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Affiliation(s)
- César Ruiz-Zambrana
- Institute of Advanced Materials (INAM). Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., Castellón., 12071, Spain
| | - Rajeev K Dubey
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastian, Spain
| | - Macarena Poyatos
- Institute of Advanced Materials (INAM). Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., Castellón., 12071, Spain
| | - Aurelio Mateo-Alonso
- POLYMAT, University of the Basque Country UPV/EHU, Avenida de Tolosa 72, 20018, Donostia-San Sebastian, Spain.,Ikerbasque, Basque Foundation for Science, 48009, Bilbao, Spain
| | - Eduardo Peris
- Institute of Advanced Materials (INAM). Centro de Innovación en Química Avanzada (ORFEO-CINQA)., Universitat Jaume I., Av. Vicente Sos Baynat s/n., Castellón., 12071, Spain
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6
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Chai L, Ju YY, Xing JF, Ma XH, Zhao XJ, Tan YZ. Nanographene Metallaprisms: Structure, Stimulated Transformation, and Emission Enhancement. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202210268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | | | | | | | | | - Yuan-Zhi Tan
- Xiamen University Department of Chemistry Siminnan Road 422 361005 Xiamen CHINA
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7
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Dosso J, Bartolomei B, Demitri N, Cossío FP, Prato M. Phenanthrene-Extended Phenazine Dication: An Electrochromic Conformational Switch Presenting Dual Reactivity. J Am Chem Soc 2022; 144:7295-7301. [PMID: 35412820 PMCID: PMC9052754 DOI: 10.1021/jacs.2c00493] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
![]()
The synthesis and
isolation of one of the few examples of a π-extended
diamagnetic phenazine dication have been achieved by oxidizing a phenanthrene-based
dihydrophenazine precursor. The resulting dication was isolated and
fully characterized, highlighting an aromatic distorted structure,
generated by the conformational change upon the oxidation of the dihydrophenazine
precursor, which is also correlated with a marked electrochromic change
in the UV–vis spectrum. The aromaticity of the dication has
also been investigated theoretically, proving that the species is
aromatic based on all major criteria (structural, magnetic, and energetic).
Moreover, the material presents an intriguing dual reactivity, resulting
in ring contraction to a π-extended triarylimidazolinium and
reduction to the dihydrophenazine precursor, depending on the nature
of the nucleophile involved. This result helps shed light on the yet
largely unexplored reactivity and properties of extended dicationic
polycyclic aromatic hydrocarbons (PAHs). In particular, the fact that
the molecule can undergo a reversible change in conformation upon
oxidation and reduction opens potential applications for this class
of derivatives as molecular switches and actuators.
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Affiliation(s)
- Jacopo Dosso
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Centre of Excellence for Nanostructured Materials, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Beatrice Bartolomei
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Centre of Excellence for Nanostructured Materials, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy
| | - Nicola Demitri
- Elettra─Sincrotrone, Trieste S.S., 14 Km 163.5, Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Fernando P Cossío
- Departamento de Química Orgánica I, Instituto de Innovaciónen Química Avanzada (ORFEO-CINQA), University of the Basque Country (UPV/EHU), Paseo Manuel Lardizabal 3, 20018 Donostia/San Sebastián, Spain.,Donostia International Physics Center (DIPC), Paseo Manuel Lardizabal 4, 20018 Donostia/San Sebastián, Spain
| | - Maurizio Prato
- Department of Chemical and Pharmaceutical Sciences, CENMAT, Centre of Excellence for Nanostructured Materials, INSTM UdR Trieste, University of Trieste, via Licio Giorgieri 1, 34127 Trieste, Italy.,Centre for Cooperative Research in Biomaterials (CIC BiomaGUNE), Basque Research and Technology Alliance (BRTA), Paseo de Miramón 194, 20014 Donostia San Sebastián, Spain.,Basque Fdn Sci, Ikerbasque, 48013 Bilbao, Spain
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8
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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: 199] [Impact Index Per Article: 99.5] [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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9
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Krompiec S, Kurpanik-Wójcik A, Matussek M, Gołek B, Mieszczanin A, Fijołek A. Diels-Alder Cycloaddition with CO, CO 2, SO 2, or N 2 Extrusion: A Powerful Tool for Material Chemistry. MATERIALS (BASEL, SWITZERLAND) 2021; 15:172. [PMID: 35009318 PMCID: PMC8745824 DOI: 10.3390/ma15010172] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/16/2021] [Accepted: 12/23/2021] [Indexed: 06/14/2023]
Abstract
Phenyl, naphthyl, polyarylphenyl, coronene, and other aromatic and polyaromatic moieties primarily influence the final materials' properties. One of the synthetic tools used to implement (hetero)aromatic moieties into final structures is Diels-Alder cycloaddition (DAC), typically combined with Scholl dehydrocondensation. Substituted 2-pyranones, 1,1-dioxothiophenes, and, especially, 1,3-cyclopentadienones are valuable substrates for [4 + 2] cycloaddition, leading to multisubstituted derivatives of benzene, naphthalene, and other aromatics. Cycloadditions of dienes can be carried out with extrusion of carbon dioxide, carbon oxide, or sulphur dioxide. When pyranones, dioxothiophenes, or cyclopentadienones and DA cycloaddition are aided with acetylenes including masked ones, conjugated or isolated diynes, or polyynes and arynes, aromatic systems are obtained. This review covers the development and the current state of knowledge regarding thermal DA cycloaddition of dienes mentioned above and dienophiles leading to (hetero)aromatics via CO, CO2, or SO2 extrusion. Particular attention was paid to the role that introduced aromatic moieties play in designing molecular structures with expected properties. Undoubtedly, the DAC variants described in this review, combined with other modern synthetic tools, constitute a convenient and efficient way of obtaining functionalized nanomaterials, continually showing the potential to impact materials sciences and new technologies in the nearest future.
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Affiliation(s)
| | - Aneta Kurpanik-Wójcik
- Institute of Chemistry, Faculty of Science and Technology, University of Silesia, Bankowa 14, 40-007 Katowice, Poland; (S.K.); (B.G.); (A.M.); (A.F.)
| | - Marek Matussek
- Institute of Chemistry, Faculty of Science and Technology, University of Silesia, Bankowa 14, 40-007 Katowice, Poland; (S.K.); (B.G.); (A.M.); (A.F.)
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10
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Biagiotti G, Perini I, Richichi B, Cicchi S. Novel Synthetic Approach to Heteroatom Doped Polycyclic Aromatic Hydrocarbons: Optimizing the Bottom-Up Approach to Atomically Precise Doped Nanographenes. Molecules 2021; 26:6306. [PMID: 34684887 PMCID: PMC8537472 DOI: 10.3390/molecules26206306] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 11/16/2022] Open
Abstract
The success of the rational bottom-up approach to nanostructured carbon materials and the discovery of the importance of their doping with heteroatoms puts under the spotlight all synthetic organic approaches to polycyclic aromatic hydrocarbons. The construction of atomically precise heteroatom doped nanographenes has evidenced the importance of controlling its geometry and the position of the doping heteroatoms, since these parameters influence their chemical-physical properties and their applications. The growing interest towards this research topic is testified by the large number of works published in this area, which have transformed a once "fundamental research" into applied research at the cutting edge of technology. This review analyzes the most recent synthetic approaches to this class of compounds.
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Affiliation(s)
- Giacomo Biagiotti
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (G.B.); (I.P.)
| | - Ilaria Perini
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (G.B.); (I.P.)
| | - Barbara Richichi
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (G.B.); (I.P.)
- National Interuniversity Consortium for Materials Science and Technology (INSTM), Via G. Giusti, 9, 50121 Firenze, Italy
| | - Stefano Cicchi
- Department of Chemistry “Ugo Schiff”, Università di Firenze, Via della Lastruccia 3-13, 50019 Sesto Fiorentino, Italy; (G.B.); (I.P.)
- National Interuniversity Consortium for Materials Science and Technology (INSTM), Via G. Giusti, 9, 50121 Firenze, Italy
- Institute of Chemistry of Organometallic Compounds, ICCOM-CNR, Via Madonna del Piano, 10, 50019 Sesto Fiorentino, Italy
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11
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Reger D, Schöll K, Hampel F, Maid H, Jux N. Pyridinic Nanographenes by Novel Precursor Design. Chemistry 2021; 27:1984-1989. [PMID: 33225488 PMCID: PMC7898602 DOI: 10.1002/chem.202004983] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Indexed: 01/24/2023]
Abstract
In this work we present the solution‐synthesis of pyridine analogues to hexa‐peri‐hexabenzocoronene (HBC)—which might be called superpyridines—via a novel precursor design. The key step in our strategy was the pre‐formation of the C−C bonds between the 3/3’ positions of the pyridine and the adjacent phenyl rings—bonds that are otherwise unreactive and difficult to close under Scholl‐conditions. Apart from the synthesis of the parent compound we show that classical pyridine chemistry, namely oxidation, N‐alkylation and metal‐coordination is applicable to the π‐extended analogue. Furthermore, we present basic physical chemical characterizations of the newly synthesized molecules. With this novel synthetic strategy, we hope to unlock the pyridine chemistry of nanographenes.
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Affiliation(s)
- David Reger
- Department of Chemistry and Pharmacy &, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
| | - Kilian Schöll
- Department of Chemistry and Pharmacy &, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
| | - Frank Hampel
- Department of Chemistry and Pharmacy &, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
| | - Harald Maid
- Department of Chemistry and Pharmacy &, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
| | - Norbert Jux
- Department of Chemistry and Pharmacy &, Interdisciplinary Center for Molecular Materials (ICMM), Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Strasse 10, 91058, Erlangen, Germany
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