1
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Qiu S, Valdivia AC, Zhuang W, Hung FF, Che CM, Casado J, Liu J. Nonalternant Nanographenes Containing N-Centered Cyclopenta[ ef]heptalene and Aza[7]Helicene Units. J Am Chem Soc 2024; 146:16161-16172. [PMID: 38720418 DOI: 10.1021/jacs.4c03815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2024]
Abstract
Introducing helical subunits into negatively curved π-systems has a significant effect on both the molecular geometry and photophysical properties; however, the synthesis of these helical π-systems embedded with nonbenzenoid subunits remains challenging due to the high strain deriving from both the curvature and helix. Here, we report a family of nonalternant nanographenes containing a nitrogen (N)-doped cyclopenta[ef]heptalene unit. Among them, CPH-2 and CPH-3 can be viewed as hybrids of benzoannulated cyclopenta[ef]heptalene and aza[7]helicene. The crystal structures revealed a saddle geometry for CPH-1, a saddle-helix hybrid for CPH-2, and a twist-helix hybrid for CPH-3. Experimental measurements and theoretical calculations indicate that the saddle moieties in CPHs undergo flexible conformational changes at room temperature, while the aza[7]helicene subunit exhibits a dramatically increased racemization energy barrier (78.2 kcal mol-1 for CPH-2, 143.2 kcal mol-1 for CPH-3). The combination of the nitrogen lone electron pairs of the N-doped cyclopenta[ef]heptalene unit with the twisted helix fragments results in rich photophysics with distinctive fluorescence and phosphorescence in CPH-1 and CPH-2 and the similar energy fluorescence and phosphorescence in CPH-3. Both enantiopure CPH-2 and CPH-3 display distinct circular dichroism (CD) signals in the UV-vis range. Notably, compared to the reported fully π-extended helical nanographenes, CPH-3 exhibits excellent chiroptical properties with a |gabs| value of 1.0 × 10-2 and a |glum| value of 7.0 × 10-3; these values are among the highest for helical nanographenes.
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Affiliation(s)
- Shuhai Qiu
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road Hong Kong 999077, China
| | - Abel Cárdenas Valdivia
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Málaga 29071, Spain
| | - Weiwen Zhuang
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road Hong Kong 999077, China
| | - Faan-Fung Hung
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road Hong Kong 999077, China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road Hong Kong 999077, China
- Chemistry and Chemical Engineering Guangdong Laboratory, Shantou 515031, China
| | - Juan Casado
- Department of Physical Chemistry, Faculty of Science, University of Málaga, Málaga 29071, Spain
| | - Junzhi Liu
- State Key Laboratory of Synthetic Chemistry, HKU-CAS Joint Laboratory on New Materials and Department of Chemistry, The University of Hong Kong, Pokfulam Road Hong Kong 999077, China
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2
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Wang WZ, Wang Q, He X, Shen YH, Zhai Z, Zhang R, Li Y, Ye KY. Electrochemical Continuous-Flow Scholl Reaction toward Polycyclic Aromatic Hydrocarbons. Org Lett 2024; 26:2243-2248. [PMID: 38456736 DOI: 10.1021/acs.orglett.4c00445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024]
Abstract
The preparation of polycyclic aromatic hydrocarbons (PAHs) by the Scholl reaction is typically performed by using superstoichiometric oxidants. Herein, we develop an electrochemical continuous-flow Scholl reaction to access PAHs that features a reduction in the use of supporting electrolytes and easy scale-up without changing the reaction conditions and setups. This reaction allows the synthesis of distorted PAHs containing three [5]helicene units that possess intriguing electronic and optical properties.
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Affiliation(s)
- Wei-Zhen Wang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Qiang Wang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Xinglei He
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yi-Han Shen
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Zi'ang Zhai
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ruiying Zhang
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Yuanming Li
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
| | - Ke-Yin Ye
- Key Laboratory of Molecule Synthesis and Function Discovery (Fujian Province University), College of Chemistry, Fuzhou University, Fuzhou 350108, China
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3
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Qin L, Huang YY, Wu B, Pan J, Yang J, Zhang J, Han G, Yang S, Chen L, Yin Z, Shu Y, Jiang L, Yi Y, Peng Q, Zhou X, Li C, Zhang G, Zhang XS, Wu K, Zhang D. Diazulenorubicene as a Non-benzenoid Isomer of peri-Tetracene with Two Sets of 5/7/5 Membered Rings Showing Good Semiconducting Properties. Angew Chem Int Ed Engl 2023; 62:e202304632. [PMID: 37338996 DOI: 10.1002/anie.202304632] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2023] [Revised: 06/15/2023] [Accepted: 06/19/2023] [Indexed: 06/22/2023]
Abstract
Non-benzenoid polycyclic aromatic hydrocarbons (PAHs) have received a lot of attention because of their unique optical, electronic, and magnetic properties, but their synthesis remains challenging. Herein, we report a non-benzenoid isomer of peri-tetracene, diazulenorubicene (DAR), with two sets of 5/7/5 membered rings synthesized by a (3+2) annulation reaction. Compared with the precursor containing only 5/7 membered rings, the newly formed five membered rings switch the aromaticity of the original heptagon/pentagon from antiaromatic/aromatic to non-aromatic/antiaromatic respectively, modify the intermolecular packing modes, and lower the LUMO levels. Notably, compound 2 b (DAR-TMS) shows p-type semiconducting properties with a hole mobility up to 1.27 cm2 V-1 s-1 . Moreover, further extension to larger non-benzenoid PAHs with 19 rings was achieved through on-surface chemistry from the DAR derivative with one alkynyl group.
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Affiliation(s)
- Liyuan Qin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yan-Ying Huang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Botao Wu
- College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Jinliang Pan
- College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Junfang Yang
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Jing Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Guangchao Han
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Suyu Yang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Liangliang Chen
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Zheng Yin
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Yilin Shu
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Lang Jiang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Yuanping Yi
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Qian Peng
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
| | - Xiong Zhou
- College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Cheng Li
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Guanxin Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
| | - Xi-Sha Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
- State Key Laboratory of Applied Organic Chemistry, Lanzhou University, 730000, Lanzhou, China
| | - Kai Wu
- College of Chemistry and Molecular Engineering, Peking University, 100871, Beijing, China
| | - Deqing Zhang
- Beijing National Laboratory for Molecular Sciences, CAS Key Laboratory of Organic Solids, CAS Center of Excellence in Molecular Science, Institute of Chemistry, Chinese Academy of Sciences, 100190, Beijing, China
- School of Chemical Sciences, University of Chinese Academy of Sciences, 100049, Beijing, China
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4
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Sun Z, Fan W, Han Y, Yuan W, Ni Y, Wang J, Wei H, Zhao Y, Sun Z, Wu J. Helical fused 1,2:8,9-dibenzozethrene oligomers with up to 201° end-to-end twist: "one-pot" synthesis and chiral resolution. Chem Sci 2023; 14:7922-7927. [PMID: 37502331 PMCID: PMC10370577 DOI: 10.1039/d3sc02285d] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/19/2023] [Indexed: 07/29/2023] Open
Abstract
Twisted polyarenes with persistent chirality are desirable but their synthesis has remained a challenge. In this study, we present a "one-pot" synthesis of 1,2:8,9-dibenzozethrene (DBZ) and its vertically fused dimers and trimers using nickel-catalyzed cyclo-oligomerization reactions. X-ray crystallographic analysis confirmed highly twisted helical structures that consist of equal parts left- and right-handed enantiomers. Notably, the end-to-end twist between the terminal anthracene units measured 66°, 130°, and 201° for the DBZ monomer, dimer, and trimer, respectively, setting a new record among twisted polyarenes. Furthermore, the chiral resolution by HPLC yielded two enantiomers for the fused DBZ dimer and trimer, both of which maintained stable configurations and showed absorption dissymmetry factors of around 0.008-0.009. Additionally, their optical and electrochemical properties were investigated, which exhibited a chain-length dependence.
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Affiliation(s)
- Zhitao Sun
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City Fuzhou 350507 China
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Wei Fan
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Yi Han
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Wei Yuan
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University 637371 Singapore
| | - Yong Ni
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Jinyi Wang
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Haipeng Wei
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
| | - Yanli Zhao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University 637371 Singapore
| | - Zhe Sun
- Institute of Molecular Plus, Department of Chemistry and Haihe Laboratory of Sustainable Chemical Transformations, Tianjin University Tianjin 300072 China
| | - Jishan Wu
- Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University Binhai New City Fuzhou 350507 China
- Department of Chemistry, National University of Singapore 3 Science Drive 3 117543 Singapore
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5
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Ejlli B, Rominger F, Freudenberg J, Bunz UHF, Müllen K. Ring-Expanding Rearrangement of Benzo-Fused Tris-Cycloheptenylenes towards Nonplanar Polycyclic Aromatic Hydrocarbons. Chemistry 2023; 29:e202203735. [PMID: 36602008 DOI: 10.1002/chem.202203735] [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: 11/30/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/06/2023]
Abstract
A strongly twisted benzo-fused tris-cycloheptenylene, containing three dibenzosuberenone units fused to a common benzene ring, was subjected to Ramirez olefination and subsequent palladium-catalyzed Suzuki-Miyaura cross-coupling with 4-substituted phenylboronic acids. The high steric demand within the overcrowded, benzene-rich benzo-fused tris-cycloheptenylenes enforced an unprecedented 1,2-rearrangement upon π-extension during the Suzuki coupling reaction. According to crystal structure analysis, the resulting negatively curved polycyclic aromatic hydrocarbons consist of two heptagons and one octagon surrounding a central benzene ring as a result of strain release. In the solid state, the materials exhibit a blue to blue-green fluorescence with increased quantum yields and a hypsochromic shift of the emission maxima compared to their respective solutions.
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Affiliation(s)
- Barbara Ejlli
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany.,Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Frank Rominger
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany
| | - Jan Freudenberg
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,InnovationLab, Speyerer Strasse 4, 69115, Heidelberg, Germany
| | - Uwe H F Bunz
- Organisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 270, 69120, Heidelberg, Germany.,Centre for Advanced Materials, Im Neuenheimer Feld 225, 69120, Heidelberg, Germany
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128, Mainz, Germany
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6
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A superhelicene-like structure bearing an eight-membered ring at the joint. Tetrahedron Lett 2022. [DOI: 10.1016/j.tetlet.2022.154310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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7
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Schnitzlein M, Zhu C, Shoyama K, Würthner F. π-Extended Pleiadienes by [5+2] Annulation of 1-Boraphenalenes and ortho-Dihaloarenes. Chemistry 2022; 28:e202202053. [PMID: 35921514 PMCID: PMC9804371 DOI: 10.1002/chem.202202053] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Indexed: 01/05/2023]
Abstract
Palladium-catalyzed [5+2] annulation of 1-boraphenalenes with ortho-dihaloarenes afforded negatively curved π-extended pleiadienes. Two benzo[1,2-i:4,5-i']dipleiadienes (BDPs) featuring a seven-six-seven-membered ring arrangement were synthesized and investigated. Their crystal structure revealed a unique packing arrangement and theoretical calculations were employed to shed light onto the dynamic behavior of the BDP moiety and its aromaticity. Further, a naphthalene-fused pleiadiene was stitched together by oxidative cyclodehydrogenation to yield an additional five-membered ring. This formal azulene moiety led to distinct changes in optical and redox properties and increased perturbation of the aromatic system.
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Affiliation(s)
- Matthias Schnitzlein
- Institut für Organische Chemie and Center for Nanosystems Chemistry (CNC)Universität WürzburgAm Hubland97074WürzburgGermany
| | - Chongwei Zhu
- Institut für Organische Chemie and Center for Nanosystems Chemistry (CNC)Universität WürzburgAm Hubland97074WürzburgGermany,Key Laboratory of Functional Molecular SolidsMinistry of Educationand School of Chemistry and Materials ScienceAnhui Normal UniversityWuhu241002P. R. China
| | - Kazutaka Shoyama
- Institut für Organische Chemie and Center for Nanosystems Chemistry (CNC)Universität WürzburgAm Hubland97074WürzburgGermany
| | - Frank Würthner
- Institut für Organische Chemie and Center for Nanosystems Chemistry (CNC)Universität WürzburgAm Hubland97074WürzburgGermany
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8
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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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9
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Fei Y, Liu J. Synthesis of Defective Nanographenes Containing Joined Pentagons and Heptagons. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2022; 9:e2201000. [PMID: 35470978 PMCID: PMC9259726 DOI: 10.1002/advs.202201000] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/19/2022] [Revised: 03/17/2022] [Indexed: 06/14/2023]
Abstract
Defective nanographenes containing joined pentagons and heptagons exhibit striking physicochemical properties from both experimental and theoretical perspectives compared with their pure hexagonal counterparts. Thus, the synthesis and characterization of these unique polyarenes with well-defined defective topologies have attracted increasing attention. Despite extensive research on nonalternant molecules since the last century, most studies focused on the corresponding mutagenic and carcinogenic activities. Recently, researchers have realized that the defective domain induces geometric bending and causes electronic perturbation, thus leading to significant alteration of the photophysical properties. This review discusses the synthesis and characterization of small nonalternant polycyclic hydrocarbons in the early stage and recent developments in embedding pentagon-heptagon (5-7) pairs into large carbon skeletons through in-solution chemistry.
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Affiliation(s)
- Yiyang Fei
- Department of Chemistry and State Key Laboratory of Synthetic ChemistryThe University of Hong KongHong Kong999077P. R. China
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic ChemistryThe University of Hong KongHong Kong999077P. R. China
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10
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Hisada M, Shimizu D, Matsuda K. Heptagon-Embedded π-Expanded Thieno- and N-Methylpyrrolo-Pyridazines with Substantial Out-of-Plane Dipole Moment. J Org Chem 2022; 87:9034-9043. [PMID: 35749313 DOI: 10.1021/acs.joc.2c00709] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Herein, we describe the synthesis and characterization of fully fused tetraphenylthieno[3,4-d]pyridazine 1 and N-methylpyrrolo[3,4-d]pyridazine 2 with two embedded seven-membered rings. Owing to the incorporated heptagon, 1 and 2 exhibited Cs-symmetric saddle conformations in the solid state with mean plane deviation around 0.38 Å. π-Expanded thienopyridazine 1 showed a one-dimensional (1-D) columnar packing along the b axis with net dipole moment aligning perpendicular to the b axis in the polar crystal system Pc. On the other hand, 2 formed a partially π-stacked brick-work structure. In addition to the Cs-symmetric saddle conformations found in the crystals, density functional theory (DFT) calculation found C2-symmetric twisted conformations of both 1 and 2 close in energy to the saddle conformations. The barrier of conformational interconversion was calculated to be 32 (1) and 31 kJ·mol-1 (2), and the interconversion occurs fast even at -60 °C as evidenced by variable-temperature (VT)-NMR studies. While 1 and 2 have moderately curved structures, optical and electrochemical studies revealed effective π-conjugation over the fused diphenylene units, which is also supported by DFT calculation. As the result of the intrinsic large dipole moment of thieno- and pyrrolo-pyridazines and the notably curved structure, 1 (2) has a substantial out-of-plane dipole moment of 2.0 (3.3) D in the saddle conformations.
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Affiliation(s)
- Masato Hisada
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Daiki Shimizu
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kenji Matsuda
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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11
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Sturm L, Aribot F, Soliman L, Bock H, Durola F. The Perkin Strategy for the synthesis of large carboxy‐substituted polycyclic aromatic compounds. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ludmilla Sturm
- University of Bordeaux: Universite de Bordeaux CRPP: Centre de Recherche Paul Pascal FRANCE
| | - Frédéric Aribot
- University of Bordeaux: Universite de Bordeaux CRPP: Centre de Recherche Paul Pascal FRANCE
| | - Luc Soliman
- University of Bordeaux: Universite de Bordeaux CRPP: Centre de Recherche Paul Pascal FRANCE
| | - Harald Bock
- CNRS: Centre National de la Recherche Scientifique CRPP: Centre de Recherche Paul Pascal FRANCE
| | - Fabien Durola
- CNRS Centre de Recherche Paul Pascal 115 avenue Schweitzer 33600 Pessac FRANCE
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12
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Wang J, Shen C, Zhang G, Gan F, Ding Y, Qiu H. Transformation of Crowded Oligoarylene into Perylene‐Cored Chiral Nanographene by Sequential Oxidative Cyclization and 1,2‐Phenyl Migration. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202115979] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jinghao Wang
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Chengshuo Shen
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Guoli Zhang
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Fuwei Gan
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Yongle Ding
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering Frontiers Science Center for Transformative Molecules State Key Laboratory of Metal Matrix Composites Shanghai Jiao Tong University Shanghai 200240 P. R. China
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13
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Abstract
Rearrangements in Scholl reaction are mostly serendipitous. The design of molecular precursors is what seems to guide the course of rearrangement. This review consolidates different classes of precursors used in Scholl reaction and their accompanying rearrangements that include aryl migration, migration followed by cyclization and skeletal rearrangements involving ring expansion, ring contraction and both, under the reaction conditions. The attempt in collating heretofore-reported examples in this review is to guide designing appropriate precursors to predictably achieve complex molecular structures or nanographenes or defect-nanographenes via rearrangement.
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Affiliation(s)
| | - Nagaraju Ponugoti
- Indian Institute of Technology Madras, Chemistry, Adyar, 600036, Chennai, INDIA
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14
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Wang J, Shen C, Zhang G, Gan F, Ding Y, Qiu H. Transformation of Crowded Oligoarylene into Perylene-Cored Chiral Nanographene by Sequential Oxidative Cyclization and 1,2-Phenyl Migration. Angew Chem Int Ed Engl 2021; 61:e202115979. [PMID: 34854182 DOI: 10.1002/anie.202115979] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Indexed: 01/07/2023]
Abstract
Synthetic innovation for constructing sophisticated nanographenes is of fundamental significance for a variety of advanced applications. Herein, we report a distinctive method to prepare π-extended chiral nanographenes with 29 benzenoid rings and two helical breaches from a highly crowded perylene-cored oligoarylene precursor. Under Scholl's conditions, the reaction predominantly involves the regioselective and sequential cyclization in the peri- and bay regions of the perylene core, and the complanation of the 1-phenyl[5]helicene intermediate module via 1,2-phenyl migration. The resulting chiral nanographenes are configurationally stable at 180 °C due to the high diastereomerization barriers of ca. 45 kcal mol-1 . These molecules also possess globally delocalized π-systems with low HOMO/LUMO gaps, leading to nearly panchromatic absorption, intensive electronic circular dichroism signals and deep-red circularly polarized luminescence.
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Affiliation(s)
- Jinghao Wang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Chengshuo Shen
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Guoli Zhang
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Fuwei Gan
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Yongle Ding
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
| | - Huibin Qiu
- School of Chemistry and Chemical Engineering, Frontiers Science Center for Transformative Molecules, State Key Laboratory of Metal Matrix Composites, Shanghai Jiao Tong University, Shanghai, 200240, P. R. China
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15
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Maddala S, Panua A, Venkatakrishnan P. Steering Scholl Oxidative Heterocoupling by Tuning Topology and Electronics for Building Thiananographenes and Their Functional N-/C-Congeners. Chemistry 2021; 27:16013-16020. [PMID: 34459037 DOI: 10.1002/chem.202102920] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Indexed: 12/14/2022]
Abstract
While intramolecular Scholl oxidative coupling between two arenes is common, successful C-C heterocoupling between thiophene and arene is scarce. The latter is due to the notorious reactivity of thiophene towards polymerization under oxidative conditions. This report systematically demonstrates how topological variation of electronics and reactivity in thiophene substrates can lead to efficient oxidative heterocoupling. Bis(biaryl)thiophenes having reactive α- and β-positions open are the choice of substrates. The cyclizing arene partners are so electronically tuned for thiophene's reactivity (at α- and β-) as to establish C-C bond oxidatively generating symmetrical as well as unsymmetrical diphenanthrothiophenes which are basic thiananographenes. Depending on the cyclizing-couple's electronics, either arene- or thiophene-centered oxidation initiates C-C heterocoupling. The potential utility of these simple thiananographenes is further unfurled by converting them to functional N-/C-graphene segments that are aza-corannulene precursor and tetrabenzospirobifluorene. Their bright emission and extended electrochemical stability are remarkable that may be potentially important and applicable.
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Affiliation(s)
- Sudhakar Maddala
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
| | - Anirban Panua
- Department of Chemistry, Indian Institute of Technology Madras, Chennai, 600 036, Tamil Nadu, India
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16
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Tsurusaki A, Kamikawa K. Multiple Helicenes Featuring Synthetic Approaches and Molecular Structures. CHEM LETT 2021. [DOI: 10.1246/cl.210409] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
| | - Ken Kamikawa
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan
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17
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Zhao M, Pun SH, Gong Q, Miao Q. Carbazole‐Fused Polycyclic Aromatics Enabled by Regioselective Scholl Reactions. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202107373] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Mengna Zhao
- 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
| | - Qi Gong
- 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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18
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Zhao M, Pun SH, Gong Q, Miao Q. Carbazole-Fused Polycyclic Aromatics Enabled by Regioselective Scholl Reactions. Angew Chem Int Ed Engl 2021; 60:24124-24130. [PMID: 34519417 DOI: 10.1002/anie.202107373] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Indexed: 12/13/2022]
Abstract
The synthesis of new carbazole-fused polycyclic aromatics with interesting geometry and useful properties was explored using Scholl reactions. As found from the Scholl reactions of substrates having two carbazole units linked at different positions through o-phenylene, oxidative coupling of carbazole units occurred in a regioselective manner with new carbon-carbon bonds preferably formed at C3 and C4 in N-alkyl carbazoles. A new N-containing aromatic bowl was characterized by single-crystal X-ray crystallography, and new p-type organic semiconductors exhibited field effect mobility of up to 0.070 cm2 V-1 s-1 in solution-processed thin-film transistors.
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Affiliation(s)
- Mengna Zhao
- 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
| | - Qi Gong
- 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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19
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Chaolumen, Stepek IA, Yamada KE, Ito H, Itami K. Construction of Heptagon-Containing Molecular Nanocarbons. Angew Chem Int Ed Engl 2021; 60:23508-23532. [PMID: 33547701 DOI: 10.1002/anie.202100260] [Citation(s) in RCA: 77] [Impact Index Per Article: 25.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Indexed: 12/11/2022]
Abstract
Molecular nanocarbons containing heptagonal rings have attracted increasing interest due to their dynamic behavior, electronic properties, aromaticity, and solid-state packing. Heptagon incorporation can not only induce negative curvature within nanocarbon scaffolds, but also confer significantly altered properties through interaction with adjacent non-hexagonal rings. Despite the disclosure of several beautiful examples in recent years, synthetic strategies toward heptagon-embedded molecular nanocarbons remain relatively limited due to the intrinsic challenges of heptagon formation and incorporation into polyarene frameworks. In this Review, recent advances in solution-mediated and surface-assisted synthesis of heptagon-containing molecular nanocarbons, as well as the intriguing properties of these frameworks, will be discussed.
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Affiliation(s)
- Chaolumen
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Iain A Stepek
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Keigo E Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Hideto Ito
- Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan
| | - Kenichiro Itami
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,Department of Chemistry, Graduate School of Science, Nagoya University, Chikusa, Nagoya, 464-8602, Japan.,Institute of Chemistry, Academia Sinica, Nankang, Taipei, 115, Taiwan, R.O.C
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20
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Jassas RS, Mughal EU, Sadiq A, Alsantali RI, Al-Rooqi MM, Naeem N, Moussa Z, Ahmed SA. Scholl reaction as a powerful tool for the synthesis of nanographenes: a systematic review. RSC Adv 2021; 11:32158-32202. [PMID: 35495486 PMCID: PMC9041733 DOI: 10.1039/d1ra05910f] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 09/10/2021] [Indexed: 12/28/2022] Open
Abstract
Nanographenes, or extended polycyclic aromatic hydrocarbons, have been attracting increasing attention owing to their widespread applications in organic electronics. However, the atomically precise fabrication of nanographenes has thus far been achieved only through synthetic organic chemistry. Polycyclic aromatic hydrocarbons (PAHs) are popular research subjects due to their high stability, rigid planar structure, and characteristic optical spectra. The recent discovery of graphene, which can be regarded as giant PAH, has further stimulated research interest in this area. Chemists working with nanographene and heterocyclic analogs thereof have chosen it as their preferred tool for the assembly of large and complex architectures. The Scholl reaction has maintained significant relevance in contemporary organic synthesis with many advances in recent years and now ranks among the most useful C-C bond-forming processes for the generation of the π-conjugated frameworks of nanographene or their heterocyclic analogs. A broad range of oxidants and Lewis acids have found use in Scholl-type processes, including Cu(OTf)2/AlCl3, FeCl3, MoCl5, PIFA/BF3-Et2O, and DDQ, in combination with Brønsted or Lewis acids, and the surface-mediated reaction has found especially wide applications in PAH synthesis. Undoubtedly, the utility of the Scholl reaction is supreme in the construction of nanographene and their heterocyclic analogues. The detailed analysis of the progress achieved in this field reveals that many groups have contributed by pushing the boundary of structural possibilities, expanding into surface-assisted cyclodehydrogenation and developing new reagents. In this review, we highlight and discuss the recent modifications in the Scholl reaction for nanographene synthesis using numerous oxidant systems. In addition, the merits or demerits of each oxidative reagent is described herein.
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Affiliation(s)
- Rabab S Jassas
- Department of Chemistry, Jamoum University College, Umm Al-Qura University 21955 Makkah Saudi Arabia
| | | | - Amina Sadiq
- Department of Chemistry, Govt. College Women University Sialkot-51300 Pakistan
| | - Reem I Alsantali
- Department of Pharmaceutical Chemistry, College of Pharmacy, Taif University P.O. Box 11099 Taif 21944 Saudi Arabia
| | - Munirah M Al-Rooqi
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia
| | - Nafeesa Naeem
- Department of Chemistry, University of Gujrat Gujrat-50700 Pakistan
| | - Ziad Moussa
- Department of Chemistry, College of Science, United Arab Emirates University P.O. Box 15551 Al Ain United Arab Emirates
| | - Saleh A Ahmed
- Department of Chemistry, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Research Laboratories Unit, Faculty of Applied Science, Umm Al-Qura University 21955 Makkah Saudi Arabia
- Chemistry Department, Faculty of Science, Assiut University 71516 Assiut Egypt
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21
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22
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Zou Y, Han Y, Wu S, Hou X, Chow CHE, Wu J. Scholl Reaction of Perylene-Based Polyphenylene Precursors under Different Conditions: Formation of Hexagon or Octagon? Angew Chem Int Ed Engl 2021; 60:17654-17663. [PMID: 34002913 DOI: 10.1002/anie.202105427] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Indexed: 12/19/2022]
Abstract
A planar dibenzo-peri-hexacene derivative (2) was synthesized via FeCl3 -mediated Scholl reaction from a cyclopenta-fused perylene (CP) based polyphenylene precursor (1). However, an unexpected octagon-containing, negatively curved molecule (3) was obtained in nearly quantitative yield when 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and methanesulfonic acid (MeSO3 H) were used. Similar results were observed when two smaller-sized precursors containing one (4) or two CP units (5) were tested. X-ray crystallographic analysis also revealed that there is no close π-π stacking between neighboring π-conjugated skeletons. DFT calculations suggest a radical cation mechanism in the presence of FeCl3 while an arenium ion pathway for the DDQ/MeSO3 H mediated Scholl reaction, which can well explain the selective formation of hexagons and octagons under different conditions. The obtained compounds showed tunable optical and electrochemical properties.
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Affiliation(s)
- Ya Zou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Yi Han
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Shaofei Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Xudong Hou
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Chi Hao Eugene Chow
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore
| | - Jishan Wu
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, 117543, Singapore, Singapore.,Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, Fuzhou, 350207, China
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23
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Zou Y, Han Y, Wu S, Hou X, Chow CHE, Wu J. Scholl Reaction of Perylene‐Based Polyphenylene Precursors under Different Conditions: Formation of Hexagon or Octagon? Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202105427] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Ya Zou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yi Han
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaofei Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Xudong Hou
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Chi Hao Eugene Chow
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Jishan Wu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
- Joint School of National University of Singapore and Tianjin University International Campus of Tianjin University Binhai New City Fuzhou 350207 China
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24
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Bhattacharyya U, Pooventhiran T, Thomas R. Adsorption of the drug bempedoic acid over different 2D/3D nanosurfaces and enhancement of Raman activity enabling ultrasensitive detection: First principle analysis. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 254:119630. [PMID: 33684853 DOI: 10.1016/j.saa.2021.119630] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2020] [Revised: 01/30/2021] [Accepted: 02/14/2021] [Indexed: 06/12/2023]
Abstract
The nanocluster-based drug delivery system is of much importance, now days. This manuscript studies the interaction of pristine/substituted/doped GQDs, fullerene, helicene and CNT with bempedoic acid, which is an effective alternative of statins in the treatment of hypercholesteremia. The adsorption energies are calculated at B3LYP-D3/6-311G+(2d,p) level in order to study the adsorption of bempedoic acid over the surfaces of the nanoclusters incorporating Grimme's dispersion correction. Surface enhanced Raman scattering (SERS), which is a sound approach to vibrational spectroscopy, is used in order to detect bempedoic acid. All the studies signify that bempedoic acid can be detected with these nanoclusters and the negative adsorption energies advocate for the possible use of these nanoclusters as effective drug delivery system in case of bempedoic acid. Adsorption energy of bempedoic acid over helicene was found to be the most negative among the mentioned nanocluster systems, while adsorption on the surface of CNT was found to be the least negative.
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Affiliation(s)
- Utsab Bhattacharyya
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala 686101, India
| | - T Pooventhiran
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala 686101, India
| | - Renjith Thomas
- Department of Chemistry, St Berchmans College (Autonomous), Mahatma Gandhi University, Changanassery, Kerala 686101, India.
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25
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Ip HW, Li Y, Kuck D, Chow HF. Regioconvergent Synthesis of a π-Extended Tribenzotriquinacene-Based Wizard Hat-Shaped Nanographene. J Org Chem 2021; 86:5546-5551. [PMID: 33825476 DOI: 10.1021/acs.joc.1c00059] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The successful enlargement of the curved π-electron periphery of the wizard hat-shaped polycyclic aromatic compound 1 is described. The target structure 2 features an m,m,p,m,m,p,m,m,p-nonaphenylene belt fused to a central tribenzotriquinacene unit. The synthesis involves a multiple regioconvergent Scholl-type dehydrocyclization as the key step. Spectroscopic, structural, and electronic properties of the title compound 2 are reported.
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Affiliation(s)
- Ho-Wang Ip
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Yuke Li
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
| | - Dietmar Kuck
- Department of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, 33615 Bielefeld, Germany
| | - Hak-Fun Chow
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong SAR
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26
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Steiner AK, Sharapa DI, Troyanov SI, Nuss J, Amsharov K. Carbon Origami via an Alumina-Assisted Cyclodehydrofluorination Strategy. Chemistry 2021; 27:6223-6229. [PMID: 32871018 PMCID: PMC8048823 DOI: 10.1002/chem.202003448] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Indexed: 11/18/2022]
Abstract
The synthesis of pristine non‐planar nanographenes (NGs) via a cyclodehydrofluorination strategy is reported and the creation of highly strained systems via alumina‐assisted C−F bond activation is shown. Steric hindrance could execute an alternative coupling program leading to rare octagon formation offering access to elusive non‐classical NGs. The combination of two alternative ways of folding could lead to the formation of various 3D NG objects, resembling the Japanese art of origami. The power of the presented “origami” approach is proved by the assembly of 12 challenging nanographenes that are π‐isoelectronic to planar hexabenzocoronene but forced out of planarity.
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Affiliation(s)
- Ann-Kristin Steiner
- Department of Chemistry and Pharmacy, Institute of Organic Chemistry, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058, Erlangen, Germany
| | - Dmitry I Sharapa
- Institute of Catalysis Research and Technology, Karlsruhe Institute of Technology (KIT), Herrmann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Sergey I Troyanov
- Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 119991, Moscow, Russia
| | - Jürgen Nuss
- Max Planck Institute for Solid State Research, Heisenbergstraße 1, 70569, Stuttgart, Germany
| | - Konstantin Amsharov
- Department of Chemistry and Pharmacy, Institute of Organic Chemistry, Friedrich-Alexander-University Erlangen-Nuremberg, Nikolaus-Fiebiger-Straße 10, 91058, Erlangen, Germany.,South Ural State University, pr. Lenina 76, 454080, Chelyabinsk, Russia.,Institute of Chemistry, Organic Chemistry, Martin-Luther-University Halle-Wittenberg, Kurt-Mothes-Strasse 2, 06120, Halle, Germany
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27
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Yang X, Chen X, Xu Y, Zhang M, Deng G, Yang Y, Liang Y. Palladium-Catalyzed [4 + 3] or [2 + 2 + 3] Annulation via C–H Activation and Subsequent Decarboxylation: Access to Heptagon-Embedded Polycyclic Aromatic Hydrocarbons. Org Lett 2021; 23:2610-2615. [DOI: 10.1021/acs.orglett.1c00520] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Xiumei Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Xiahong Chen
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yankun Xu
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Minghao Zhang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Guobo Deng
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yuan Yang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
| | - Yun Liang
- National & Local Joint Engineering Laboratory for New Petro-chemical Materials and Fine Utilization of Resources, Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research, Ministry of Education, Key Laboratory of the Assembly and Application of Organic Functional Molecules of Hunan Province, Hunan Normal University, Changsha, Hunan 410081, China
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28
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Tanaka Y, Tajima K, Fukui N, Shinokubo H. Dinaphtho[1,8‐
bc
:1′,8′‐
fg
][1,5]dithiocine Bisimide. ASIAN J ORG CHEM 2021. [DOI: 10.1002/ajoc.202000722] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yuki Tanaka
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-chi, Chikusa-ku 464-8603 Nagoya Japan
| | - Keita Tajima
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-chi, Chikusa-ku 464-8603 Nagoya Japan
| | - Norihito Fukui
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-chi, Chikusa-ku 464-8603 Nagoya Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry Graduate School of Engineering Nagoya University Furo-chi, Chikusa-ku 464-8603 Nagoya Japan
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29
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Sun XQ, Wong WS, Li Y, Kuck D, Chow HF. A helically twisted ribbon-shaped nanographene constructed around a fenestrindane core. Org Chem Front 2021. [DOI: 10.1039/d1qo00929j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Ten C–C bonds and four cycloheptatriene rings were formed in one single operation, producing a helically twisted ribbon-shaped nanographene in 11% yield.
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Affiliation(s)
- Xiao-Qing Sun
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Wai-Shing Wong
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Yuke Li
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - Dietmar Kuck
- Department of Chemistry and Center for Molecular Materials (CM2), Bielefeld University, 33615 Bielefeld, Germany
| | - Hak-Fun Chow
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, Hong Kong
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30
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Chen XY, Li JK, Wang XY. Recent Advances in the Syntheses of Helicene-Based Molecular Nanocarbons via the Scholl Reaction. CHINESE J ORG CHEM 2021. [DOI: 10.6023/cjoc202107063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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31
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Qiu Z, Asako S, Hu Y, Ju CW, Liu T, Rondin L, Schollmeyer D, Lauret JS, Müllen K, Narita A. Negatively Curved Nanographene with Heptagonal and [5]Helicene Units. J Am Chem Soc 2020; 142:14814-14819. [PMID: 32809808 PMCID: PMC7472433 DOI: 10.1021/jacs.0c05504] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
![]()
Negatively
curved nanographene (NG) 4, having two
heptagons and a [5]helicene, was unexpectedly obtained by aryl rearrangement
and stepwise cyclodehydrogenations. X-ray crystallography confirmed
the saddle-shaped structures of intermediate 3 and NG 4. The favorability of rearrangement over helicene formation
following radical cation or arenium cation mechanisms is supported
by theoretical calculations. NG 4 demonstrates a reversible
mechanochromic color change and solid-state emission, presumably benefiting
from its loose crystal packing. After resolution by chiral high-performance
liquid chromatography, the circular dichroism spectra of enantiomers 4-(P) and 4-(M) were measured and showed moderate Cotton effects at 350 nm (|Δε|
= 148 M–1 cm–1).
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Affiliation(s)
- Zijie Qiu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Sobi Asako
- RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako, Saitama 351-0198, Japan
| | - Yunbin Hu
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
| | - Cheng-Wei Ju
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.,College of Chemistry, Nankai University, Tianjin 300071, China
| | - Thomas Liu
- Université Paris Saclay, ENS Paris Saclay, Centrale Supelec, CNRS, LUMIN, 91405 Orsay Cedex, France
| | - Loïc Rondin
- Université Paris Saclay, ENS Paris Saclay, Centrale Supelec, CNRS, LUMIN, 91405 Orsay Cedex, France
| | - Dieter Schollmeyer
- Department of Chemistry, Johannes Gutenberg-University Mainz, Duesbergweg 10-14, 55099 Mainz, Germany
| | - Jean-Sébastien Lauret
- Université Paris Saclay, ENS Paris Saclay, Centrale Supelec, CNRS, LUMIN, 91405 Orsay Cedex, France
| | - Klaus Müllen
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.,Department of Chemistry, University of Cologne, Greinstr. 4-6, 50939 Cologne, Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany.,Organic and Carbon Nanomaterials Unit, Okinawa Institute of Science and Technology Graduate University, 1919-1 Tancha, Onna-son, Kunigami-gun, Okinawa 904-0495, Japan
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32
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Kinoshita S, Yamano R, Shibata Y, Tanaka Y, Hanada K, Matsumoto T, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Rhodium‐Catalyzed Highly Diastereo‐ and Enantioselective Synthesis of a Configurationally Stable S‐Shaped Double Helicene‐Like Molecule. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001794] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Suzuka Kinoshita
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ryota Yamano
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Kyoichi Hanada
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Takashi Matsumoto
- Rigaku Corporation 3-9-12 Matsubara-cho Akishima Tokyo 196-8666 Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences The University of Tokyo 7-3-1 Hongo, Bunkyo-ku Tokyo 113-0033 Japan
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR) RIKEN 2-1 Hirosawa Wako Saitama 351-0198 Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering Tokyo Institute of Technology, O-okayama, Meguro-ku Tokyo 152-8550 Japan
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33
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Kinoshita S, Yamano R, Shibata Y, Tanaka Y, Hanada K, Matsumoto T, Miyamoto K, Muranaka A, Uchiyama M, Tanaka K. Rhodium-Catalyzed Highly Diastereo- and Enantioselective Synthesis of a Configurationally Stable S-Shaped Double Helicene-Like Molecule. Angew Chem Int Ed Engl 2020; 59:11020-11027. [PMID: 32237104 DOI: 10.1002/anie.202001794] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 03/25/2020] [Indexed: 12/13/2022]
Abstract
An S-shaped double helicene-like molecule (>99 % ee), possessing stable helical chirality, has been synthesized by the rhodium(I)/difluorphos complex-catalyzed highly diastereo- and enantioselective intramolecular double [2+2+2] cycloaddition of a 2-naphthol- and benzene-linked hexayne. The collision between two terminal naphthalene rings destabilizes the helical chirality of the S-shaped double helicene-like molecule, but the introduction of two additional fused benzene rings significantly increases the configurational stability. Thus, no epimerization and racemization were observed even at 100 °C. The enantiopure S-shaped double helicene-like molecule forms a trimer through the multiple C-H⋅⋅⋅π and C-H⋅⋅⋅O interactions in the solid-state. The trimers stack to form columnar packing structures, in which neighboring stacks have opposite dipole directions. The accumulation of helical structures in the same direction in the S-shaped double helicene-like molecule enhanced the chiroptical properties.
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Affiliation(s)
- Suzuka Kinoshita
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Ryota Yamano
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yu Shibata
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yusuke Tanaka
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Kyoichi Hanada
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Takashi Matsumoto
- Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima, Tokyo, 196-8666, Japan
| | - Kazunori Miyamoto
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Atsuya Muranaka
- Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.,Advanced Elements Chemistry Laboratory, Cluster for Pioneering Research (CPR), RIKEN, 2-1 Hirosawa, Wako, Saitama, 351-0198, Japan
| | - Ken Tanaka
- Department of Chemical Science and Engineering, Tokyo Institute of Technology, O-okayama, Meguro-ku, Tokyo, 152-8550, Japan
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34
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Han Y, Xue Z, Li G, Gu Y, Ni Y, Dong S, Chi C. Formation of Azulene‐Embedded Nanographene: Naphthalene to Azulene Rearrangement During the Scholl Reaction. Angew Chem Int Ed Engl 2020; 59:9026-9031. [DOI: 10.1002/anie.201915327] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 01/10/2020] [Indexed: 01/06/2023]
Affiliation(s)
- Yi Han
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Zibo Xue
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yanwei Gu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yong Ni
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaoqiang Dong
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Chunyan Chi
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
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35
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Han Y, Xue Z, Li G, Gu Y, Ni Y, Dong S, Chi C. Formation of Azulene‐Embedded Nanographene: Naphthalene to Azulene Rearrangement During the Scholl Reaction. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201915327] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Yi Han
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Zibo Xue
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Guangwu Li
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yanwei Gu
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Yong Ni
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Shaoqiang Dong
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
| | - Chunyan Chi
- Department of Chemistry National University of Singapore 3 Science Drive 3 117543 Singapore Singapore
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36
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Magiera KM, Aryal V, Chalifoux WA. Alkyne benzannulations in the preparation of contorted nanographenes. Org Biomol Chem 2020; 18:2372-2386. [PMID: 32196052 DOI: 10.1039/d0ob00182a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Nanographenes are a popular area of research due to their promising properties for electronics. Over the last twenty years there has been a significant increase in interest in the development of contorted nanographenes. While many top-down techniques are employed in the synthesis of these planar nanographenes, the use of alkynes in bottom-up syntheses allows for easy functionalization and the development of contorted nanographenes. The syntheses of contorted nanographenes with a focus on utilizing alkynes is reviewed here.
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Affiliation(s)
- Kelsie M Magiera
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
| | - Vivek Aryal
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
| | - Wesley A Chalifoux
- Department of Chemistry, University of Nevada, Reno, 1664 N. Virginia St., Reno, NV 89557, USA.
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37
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Wong W, Lau W, Li Y, Liu Z, Kuck D, Chow H. Scholl‐Type Cycloheptatriene Ring Closure of 1,4,9,12‐Tetraarylfenestrindanes: Reactivity and Selectivity in the Construction of Fenestrane‐Based Polyaromatic Saddles. Chemistry 2020; 26:4310-4319. [DOI: 10.1002/chem.201904949] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Indexed: 12/12/2022]
Affiliation(s)
- Wai‐Shing Wong
- Department of Chemistry The Chinese University of Hong Kong Shatin Hong Kong
- Institute of Molecular Functional Materials and The Center of Novel Functional Molecules The Chinese University of Hong Kong Shatin Hong Kong
| | - Wing‐Wa Lau
- Department of Chemistry The Chinese University of Hong Kong Shatin Hong Kong
- Institute of Molecular Functional Materials and The Center of Novel Functional Molecules The Chinese University of Hong Kong Shatin Hong Kong
| | - Yuke Li
- Department of Chemistry The Chinese University of Hong Kong Shatin Hong Kong
| | - Zhifeng Liu
- Department of Chemistry The Chinese University of Hong Kong Shatin Hong Kong
| | - Dietmar Kuck
- Department of Chemistry and Center for Molecular Materials (CM2) Bielefeld University 33615 Bielefeld Germany
| | - Hak‐Fun Chow
- Department of Chemistry The Chinese University of Hong Kong Shatin Hong Kong
- Institute of Molecular Functional Materials and The Center of Novel Functional Molecules The Chinese University of Hong Kong Shatin Hong Kong
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38
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Grzybowski M, Sadowski B, Butenschön H, Gryko DT. Synthetic Applications of Oxidative Aromatic Coupling-From Biphenols to Nanographenes. Angew Chem Int Ed Engl 2020; 59:2998-3027. [PMID: 31342599 PMCID: PMC7027897 DOI: 10.1002/anie.201904934] [Citation(s) in RCA: 173] [Impact Index Per Article: 43.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2019] [Revised: 06/28/2019] [Indexed: 12/31/2022]
Abstract
Oxidative aromatic coupling occupies a fundamental place in the modern chemistry of aromatic compounds. It is a method of choice for the assembly of large and bewildering architectures. Considerable effort was also devoted to applications of the Scholl reaction for the synthesis of chiral biphenols and natural products. The ability to form biaryl linkages without any prefunctionalization provides an efficient pathway to many complex structures. Although the chemistry of this process is only now becoming fully understood, this reaction continues to both fascinate and challenge researchers. This is especially true for heterocoupling, that is, oxidative aromatic coupling with the chemoselective formation of a C-C bond between two different arenes. Analysis of the progress achieved in this field since 2013 reveals that many groups have contributed by pushing the boundary of structural possibilities, expanding into surface-assisted (cyclo)dehydrogenation, and developing new reagents.
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Affiliation(s)
- Marek Grzybowski
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
| | - Bartłomiej Sadowski
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
| | - Holger Butenschön
- Institut für Organische ChemieLeibniz Universität HannoverSchneiderberg 1B30167HannoverGermany
| | - Daniel T. Gryko
- Institute of Organic ChemistryPolish Academy of SciencesKasprzaka 44/5201-224WarsawPoland
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39
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Roy M, Berezhnaia V, Villa M, Vanthuyne N, Giorgi M, Naubron J, Poyer S, Monnier V, Charles L, Carissan Y, Hagebaum‐Reignier D, Rodriguez J, Gingras M, Coquerel Y. Stereoselective Syntheses, Structures, and Properties of Extremely Distorted Chiral Nanographenes Embedding Hextuple Helicenes. Angew Chem Int Ed Engl 2020; 59:3264-3271. [DOI: 10.1002/anie.201913200] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/25/2019] [Indexed: 01/07/2023]
Affiliation(s)
- Myriam Roy
- Aix Marseille UnivCNRSCINAM Marseille France
- Sorbonne UniversitéCNRSInstitut Parisien de Chimie MoléculaireIPCM 75005 Paris France
| | | | - Marco Villa
- Aix Marseille UnivCNRSCINAM Marseille France
| | | | - Michel Giorgi
- Aix Marseille UnivCNRSCentrale Marseille, FSCM Marseille France
| | | | | | - Valérie Monnier
- Aix Marseille UnivCNRSCentrale Marseille, FSCM Marseille France
| | | | | | | | - Jean Rodriguez
- Aix Marseille UnivCNRSCentrale MarseilleiSm2 Marseille France
| | | | - Yoann Coquerel
- Aix Marseille UnivCNRSCentrale MarseilleiSm2 Marseille France
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40
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Venkateswarlu S, Prakoso SP, Kumar S, Tao Y. Accessing π‐expanded heterocyclics beyond dibenzothiophene: Syntheses and properties of phenanthrothiophenes. J CHIN CHEM SOC-TAIP 2020. [DOI: 10.1002/jccs.201900509] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Samala Venkateswarlu
- Institute of ChemistryAcademia Sinica Taipei Taiwan
- Taiwan International Graduate Program, Sustainable Chemical Science and TechnologyAcademia Sinica Taipei Taiwan
- Department of Applied ChemistryNational Chiao Tung University Hsinchu Taiwan
| | - Suhendro Purbo Prakoso
- Taiwan International Graduate Program, Sustainable Chemical Science and TechnologyAcademia Sinica Taipei Taiwan
- Department of Applied ChemistryNational Chiao Tung University Hsinchu Taiwan
| | - Sushil Kumar
- Institute of ChemistryAcademia Sinica Taipei Taiwan
| | - Yu‐Tai Tao
- Institute of ChemistryAcademia Sinica Taipei Taiwan
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41
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Ma J, Fu Y, Dmitrieva E, Liu F, Komber H, Hennersdorf F, Popov AA, Weigand JJ, Liu J, Feng X. Helical Nanographenes Containing an Azulene Unit: Synthesis, Crystal Structures, and Properties. Angew Chem Int Ed Engl 2020; 59:5637-5642. [PMID: 31867754 PMCID: PMC7155134 DOI: 10.1002/anie.201914716] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Indexed: 11/09/2022]
Abstract
Three unprecedented helical nanographenes (1, 2, and 3) containing an azulene unit are synthesized. The resultant helical structures are unambiguously confirmed by X‐ray crystallographic analysis. The embedded azulene unit in 2 possesses a record‐high twisting degree (16.1°) as a result of the contiguous steric repulsion at the helical inner rim. Structural analysis in combination with theoretical calculations reveals that these helical nanographenes manifest a global aromatic structure, while the inner azulene unit exhibits weak antiaromatic character. Furthermore, UV/Vis‐spectral measurements reveal that superhelicenes 2 and 3 possess narrow energy gaps (2: 1.88 eV; 3: 2.03 eV), as corroborated by cyclic voltammetry and supported by density functional theory (DFT) calculations. The stable oxidized and reduced states of 2 and 3 are characterized by in‐situ EPR/Vis–NIR spectroelectrochemistry. Our study provides a novel synthetic strategy for helical nanographenes containing azulene units as well as their associated structures and physical properties.
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Affiliation(s)
- Ji Ma
- Centre for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Yubin Fu
- Centre for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Evgenia Dmitrieva
- Leibniz Institute for Solid State and Materials Research, 01069, Dresden, Germany
| | - Fupin Liu
- Leibniz Institute for Solid State and Materials Research, 01069, Dresden, Germany
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden e. V., Hohe Straße 6, 01069, Dresden, Germany
| | - Felix Hennersdorf
- Chair of Inorganic Molecular Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Alexey A Popov
- Leibniz Institute for Solid State and Materials Research, 01069, Dresden, Germany
| | - Jan J Weigand
- Chair of Inorganic Molecular Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| | - Xinliang Feng
- Centre for Advancing Electronics Dresden (cfaed), Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, 01062, Dresden, Germany
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42
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Ma J, Fu Y, Dmitrieva E, Liu F, Komber H, Hennersdorf F, Popov AA, Weigand JJ, Liu J, Feng X. Helical Nanographenes Containing an Azulene Unit: Synthesis, Crystal Structures, and Properties. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201914716] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Ji Ma
- Centre for Advancing Electronics Dresden (cfaed) Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Yubin Fu
- Centre for Advancing Electronics Dresden (cfaed) Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Evgenia Dmitrieva
- Leibniz Institute for Solid State and Materials Research 01069 Dresden Germany
| | - Fupin Liu
- Leibniz Institute for Solid State and Materials Research 01069 Dresden Germany
| | - Hartmut Komber
- Leibniz-Institut für Polymerforschung Dresden e. V. Hohe Straße 6 01069 Dresden Germany
| | - Felix Hennersdorf
- Chair of Inorganic Molecular Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Alexey A. Popov
- Leibniz Institute for Solid State and Materials Research 01069 Dresden Germany
| | - Jan J. Weigand
- Chair of Inorganic Molecular Chemistry Technische Universität Dresden 01062 Dresden Germany
| | - Junzhi Liu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry The University of Hong Kong Pokfulam Road Hong Kong China
| | - Xinliang Feng
- Centre for Advancing Electronics Dresden (cfaed) Faculty of Chemistry and Food Chemistry Technische Universität Dresden 01062 Dresden Germany
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43
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Stereoselective Syntheses, Structures, and Properties of Extremely Distorted Chiral Nanographenes Embedding Hextuple Helicenes. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201913200] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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44
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Akhmetov V, Förtsch A, Feofanov M, Troyanov S, Amsharov K. Folding of fluorinated oligoarylenes into non-alternant PAHs with various topological shapes. Org Chem Front 2020. [DOI: 10.1039/d0qo00370k] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
An unprecedented [6]helicene's cavity closure indicating the possibility of introducing seven-membered rings via alumina-mediated C–F activation is shown.
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Affiliation(s)
- Vladimir Akhmetov
- Friedrich-Alexander University Erlangen-Nuernberg
- Department of Chemistry and Pharmacy
- Organic Chemistry II
- 91058 Erlangen
- Germany
| | - Andreas Förtsch
- Institute of Chemistry
- Organic Chemistry
- Martin-Luther-University Halle-Wittenberg
- D-06120 Halle
- Germany
| | - Mikhail Feofanov
- Friedrich-Alexander University Erlangen-Nuernberg
- Department of Chemistry and Pharmacy
- Organic Chemistry II
- 91058 Erlangen
- Germany
| | - Sergey Troyanov
- Chemistry Department
- Moscow State University
- Moscow
- Russian Federation
| | - Konstantin Amsharov
- Friedrich-Alexander University Erlangen-Nuernberg
- Department of Chemistry and Pharmacy
- Organic Chemistry II
- 91058 Erlangen
- Germany
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45
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Grzybowski M, Sadowski B, Butenschön H, Gryko DT. Syntheseanwendungen der oxidativen aromatischen Kupplung – von Biphenolen zu Nanographenen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201904934] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Marek Grzybowski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warschau Polen
| | - Bartłomiej Sadowski
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warschau Polen
| | - Holger Butenschön
- Institut für Organische Chemie Leibniz Universität Hannover Schneiderberg 1B 30167 Hannover Deutschland
| | - Daniel T. Gryko
- Institute of Organic Chemistry Polish Academy of Sciences Kasprzaka 44/52 01-224 Warschau Polen
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46
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Hayakawa S, Kawasaki A, Hong Y, Uraguchi D, Ooi T, Kim D, Akutagawa T, Fukui N, Shinokubo H. Inserting Nitrogen: An Effective Concept To Create Nonplanar and Stimuli-Responsive Perylene Bisimide Analogues. J Am Chem Soc 2019; 141:19807-19816. [DOI: 10.1021/jacs.9b09556] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Sakiho Hayakawa
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Ayumi Kawasaki
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai 980-8577, Japan
| | - Yongseok Hong
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Daisuke Uraguchi
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Takashi Ooi
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
- Institute of Transformative Bio-Molecules (WPI-ITbM), Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8601, Japan
| | - Dongho Kim
- Spectroscopy Laboratory for Functional π-Electronic Systems and Department of Chemistry, Yonsei University, Seoul 03722, Korea
| | - Tomoyuki Akutagawa
- Graduate School of Engineering, Tohoku University, Sendai 980-8579, Japan
- Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University, 2-1-1 Katahira Aoba-ku, Sendai 980-8577, Japan
| | - Norihito Fukui
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
| | - Hiroshi Shinokubo
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi 464-8603, Japan
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47
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Hou IC, Narita A, Müllen K. Stepwise Lateral Extension of Phenyl‐Substituted Linear Polyphenylenes. MACROMOL CHEM PHYS 2019. [DOI: 10.1002/macp.201900374] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Ian Cheng‐Yi Hou
- Max Planck Institute for Polymer Research Ackermannweg 10 D‐55128 Mainz Germany
| | - Akimitsu Narita
- Max Planck Institute for Polymer Research Ackermannweg 10 D‐55128 Mainz Germany
- Organic and Carbon Nanomaterials Unit Okinawa Institute of Science and Technology Graduate University 1919‐1 Tancha, Onna‐son, Kunigami Okinawa 904‐0495 Japan
| | - Klaus Müllen
- Max Planck Institute for Polymer Research Ackermannweg 10 D‐55128 Mainz Germany
- Institute of Physical Chemistry Johannes Gutenberg‐University Mainz Duesbergweg 10–14 D‐55128 Mainz Germany
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48
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Farrell JM, Grande V, Schmidt D, Würthner F. A Highly Warped Heptagon-Containing sp 2 Carbon Scaffold via Vinylnaphthyl π-Extension. Angew Chem Int Ed Engl 2019; 58:16504-16507. [PMID: 31507020 PMCID: PMC6900032 DOI: 10.1002/anie.201909975] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Indexed: 10/26/2022]
Abstract
A new strategy is demonstrated for the synthesis of warped, negatively curved, all-sp2 -carbon π-scaffolds. Multifold C-C coupling reactions are used to transform a polyaromatic borinic acid into a saddle-shaped polyaromatic hydrocarbon (2) bearing two heptagonal rings. Notably, this Schwarzite substructure is synthesized in only two steps from an unfunctionalized alkene. A highly warped structure of 2 was revealed by X-ray crystallographic studies and pronounced flexibility of this π-scaffold was ascertained by experimental and computational studies. Compound 2 exhibits excellent solubility, visible range absorption and fluorescence, and readily undergoes two reversible one-electron oxidations at mild potentials.
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Affiliation(s)
- Jeffrey M Farrell
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Vincenzo Grande
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - David Schmidt
- Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
| | - Frank Würthner
- Institut für Organische Chemie, Universität Würzburg, Am Hubland, 97074, Würzburg, Germany.,Center for Nanosystems Chemistry (CNC), Universität Würzburg, Theodor-Boveri-Weg, 97074, Würzburg, Germany
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49
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Farrell JM, Grande V, Schmidt D, Würthner F. A Highly Warped Heptagon‐Containing sp
2
Carbon Scaffold via Vinylnaphthyl π‐Extension. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201909975] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jeffrey M. Farrell
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
| | - Vincenzo Grande
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - David Schmidt
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
| | - Frank Würthner
- Institut für Organische Chemie Universität Würzburg Am Hubland 97074 Würzburg Germany
- Center for Nanosystems Chemistry (CNC) Universität Würzburg Theodor-Boveri-Weg 97074 Würzburg Germany
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50
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Venkateswarlu S, Prakoso SP, Kumar S, Kuo MY, Tao YT. Benzophenanthrothiophenes: Syntheses, Crystal Structures, and Properties. J Org Chem 2019; 84:10990-10998. [PMID: 31380638 DOI: 10.1021/acs.joc.9b01581] [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
A new class of polycyclic heteroarenes based on benzo[3,4]phenanthro[1,2-b]benzo[3,4]phenanthro[2,1-d]thiophene (BPBPT) was prepared from polyaryl thiophenes via regioselective Scholl reactions. The molecular frameworks of these compounds exhibited twisted bridges and near-cofacial packing motifs with oppositely or parallel π-stacked structures depending on the substituents on the periphery. Theoretical calculation of electronic coupling and charge mobility was carried out on the basis of the single-crystal structures. Single crystals of selected benzophenanthrothiophenes were used in p-channel field-effect transistor device fabrication, from which the highest mobility was measured as 2.03 cm2 V-1 s-1 from Flu-BPBPT.
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Affiliation(s)
- Samala Venkateswarlu
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan.,Taiwan International Graduate Program, Sustainable Chemical Science and Technology , Academia Sinica , Taipei 115 , Taiwan.,Department of Applied Chemistry , National Chiao Tung University , Hsinchu 300 , Taiwan
| | - Suhendro Purbo Prakoso
- Taiwan International Graduate Program, Sustainable Chemical Science and Technology , Academia Sinica , Taipei 115 , Taiwan.,Department of Applied Chemistry , National Chiao Tung University , Hsinchu 300 , Taiwan
| | - Sushil Kumar
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan
| | - Ming-Yu Kuo
- Department of Applied Chemistry , National Chi Nan University , Nantou 545 , Taiwan
| | - Yu-Tai Tao
- Institute of Chemistry , Academia Sinica , Taipei 115 , Taiwan
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