1
|
Ito K, Nakamura K, Yoshida K. Synthesis of [1]Benzothieno[3,2-b][1]benzothiophenes through Iodine-Mediated Sulfur Insertion Reaction. Chemistry 2024; 30:e202400220. [PMID: 38320966 DOI: 10.1002/chem.202400220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2024] [Revised: 02/05/2024] [Accepted: 02/06/2024] [Indexed: 02/08/2024]
Abstract
[1]Benzothieno[3,2-b][1]benzothiophenes (BTBTs) are important molecules that have been extensively studied as high-performance organic field-effect transistors (OFETs). Therefore, it is important to develop a simple synthetic method for these molecules. In this paper, a synthetic method to obtain the BTBTs from 2-arylbenzo[b]thiophenes and elemental sulfur, in which two C-S bonds are formed at once, is described. In this method, molecular iodine plays a very important role as an additive. The role of iodine is discussed in the presumed reaction pathways.
Collapse
Affiliation(s)
- Kazuki Ito
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Kohei Nakamura
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| | - Kazuhiro Yoshida
- Department of Chemistry, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
- Department of Quantum Life Science, Graduate School of Science, Chiba University, Yayoi-cho, Inage-ku, Chiba, 263-8522, Japan
| |
Collapse
|
2
|
Wang X, Hua X, Zhang H, Wu L, Yuan C, Liu Z, Zhang HL, Shao X. Transforming Hetera-Buckybowls into Chiral Conjugated Polycycles Incorporating Epoxycyclooctadiene: a Two-Step Approach. Chemistry 2023; 29:e202303085. [PMID: 37877318 DOI: 10.1002/chem.202303085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 10/23/2023] [Accepted: 10/24/2023] [Indexed: 10/26/2023]
Abstract
Chiral π-conjugated polycycles have garnered increasing attention due to versatile applications in optoelectronic materials and biological sciences. In this study, we report the synthesis of chiral π-conjugated polycycles incorporating a chiral epoxycyclooctadiene moiety. Our synthetic strategy capitalizes on the novel reactions of hetera-buckybowl triselenasumanene (TSS) and is achieved in two-step manner. Firstly, the TSS is regio-selectively transformed into its ortho-quinone form. Subsequently, the nucleophilic addition reactions of TSS ortho-quinone by phenylethynides are metal ion-dependent. When utilizing (phenylethynyl)magnesium bromide as the nucleophile, two phenylethynyls are furnished onto the edged benzene ring of TSS. When the nucleophile is (phenylethynyl)lithium, a cascade of nucleophilic addition, intermolecular electron-transfer, ring-opening, and tetradehydro-Diels-Alder (TDDA) reactions occur sequentially in one-pot, ultimately affording chiral π-conjugated polycycles featuring the epoxycyclooctadiene moiety as an integral part of their backbones. This work represents a step forward in the synthesis of chiral π-conjugated polycycles using TSS as synthon.
Collapse
Affiliation(s)
- Xue Wang
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Xinqiang Hua
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Haomin Zhang
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Lingxi Wu
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Chengshan Yuan
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Zitong Liu
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Hao-Li Zhang
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| | - Xiangfeng Shao
- Research Centre for Free Radical Chemistry of Lanzhou University, State Key Laboratory of Applied Organic Chemistry, Lanzhou University, Tianshui Southern Road 222, Lanzhou, Gansu Province, China
| |
Collapse
|
3
|
Ito K, Sakai S, Yoshida K. Synthesis of [1]Benzothieno[2,3- b][1]benzothiophenes from 3-Arylbenzo[ b]thiophenes through Iodine-Mediated Sulfur Insertion Reaction. J Org Chem 2023; 88:14797-14802. [PMID: 37788823 DOI: 10.1021/acs.joc.3c01618] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
The reaction of 3-arylbenzo[b]thiophenes and elemental sulfur to obtain [1]benzothieno[2,3-b][1]benzothiophenes (BTBTs) is reported. The addition of molecular iodine is essential for the reaction. In previous reactions that used 1,1-diarylethylenes as the starting material, side products that were difficult to separate were generated. The present reaction does not produce such side products and is therefore advantageous for obtaining BTBTs in high yield and purity.
Collapse
|
4
|
Ji Z, Zhao C, Zhang C, Wang Z, Ma Z, Xu L, Wang H. Synthesis and AIE properties of benzene fused cyclooctetrathiophenes. J Photochem Photobiol A Chem 2023. [DOI: 10.1016/j.jphotochem.2022.114362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
|
5
|
Tripathi A, Kumar V, Chetti P. Stability, optical and charge transport properties of saddle-shaped cyclooctatetrathiophene (COTh) isomers: a theoretical study. J Sulphur Chem 2021. [DOI: 10.1080/17415993.2021.1993851] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Anuj Tripathi
- Department of Chemistry, National Institute of Technology, Kurukshetra, India
| | - Vipin Kumar
- Department of Chemistry, National Institute of Technology, Kurukshetra, India
| | - Prabhakar Chetti
- Department of Chemistry, National Institute of Technology, Kurukshetra, India
| |
Collapse
|
6
|
Wu M, Shan Z, Wang J, Gu Z, Wu X, Xu B, Zhang G. Three-dimensional covalent organic frameworks based on a π-conjugated tetrahedral node. Chem Commun (Camb) 2021; 57:10379-10382. [PMID: 34542113 DOI: 10.1039/d1cc03219d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The construction of three-dimensional (3D) covalent organic frameworks (COFs), especially fully conjugated 3D COFs, is a long-standing challenge. Herein, we report a saddle-like, π-conjugated cyclooctatetrathiophene (COTh) as a tetrahedral node to construct fully conjugated 3D COFs. The present work enriches the structural diversities and potential applications of 3D COFs.
Collapse
Affiliation(s)
- Miaomiao Wu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Zhen Shan
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Jinjian Wang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Zhangjie Gu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Xiaowei Wu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Bingqing Xu
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| | - Gen Zhang
- School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China.
| |
Collapse
|
7
|
Computational Study of Structural, Molecular Orbitals, Optical and Thermodynamic Parameters of Thiophene Sulfonamide Derivatives. CRYSTALS 2021. [DOI: 10.3390/cryst11020211] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Thiophene and sulfonamide derivatives serve as biologically active compounds, used for the manufacture of large numbers of new drugs. In this study, 11 selected derivatives of thiophene sulfonamide were computed for their geometric parameters, such as hyperpolarizability, chemical hardness (ƞ), electronic chemical potential (μ), electrophilicity index (ω), ionization potential (I), and electron affinity (A). In addition, FT-IR and UV-Vis spectra were also simulated through theoretical calculations. The geometrical parameters and vibrational frequencies with assignments of the vibrational spectra strongly resemble the experimentally calculated values. Besides, the frontier molecular orbitals were also determined for various intramolecular interactions that are responsible for the stability of the compounds. The isodensity surfaces of the frontier molecular orbitals (FMOs) are the same pattern in most of the compounds, but in some compounds are disturbed due to the presence of highly electronegative hetero-atoms. In this series of compounds, 3 shows the highest HOMO–LUMO energy gap and lowest hyperpolarizability, which leads to the most stable compound and less response to nonlinear optical (NLO), while 7 shows the lowest HOMO–LUMO energy gap and highest hyperpolarizability, which leads to a less stable compound and a high NLO response. All compounds have their extended three-dimensional p-electronic delocalization which plays an important role in studying NLO responses.
Collapse
|
8
|
Tian Y, Wang C, Wang G, Xu L, Wang H. Ag-Induced metallogel based on cyclooctatetrathiophene: structural characterization and stimuli-responsive properties. SOFT MATTER 2021; 17:341-345. [PMID: 33415325 DOI: 10.1039/d0sm01957g] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Based on saddle-shaped cyclooctathiophene (COTh) as a building block, ligands 2 and 3 were synthesized bearing 3- or 4-substituted pyridyl groups as coordination groups, which showed strong gelation abilities with AgBF4 in several solvents at room temperature. This Ag+-induced metallogel exhibited outstanding stimuli-responsive properties upon addition of halogen ions, acetonitrile or H2O.
Collapse
Affiliation(s)
- Yu Tian
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Chenglong Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Guangxia Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| | - Li Xu
- College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, China
| | - Hua Wang
- Engineering Research Center for Nanomaterials, Henan University, Kaifeng, 475004, China.
| |
Collapse
|
9
|
Zhao C, Ma Z, Li C, Xu L, Wang H. Thiophene and naphthalene-based double helix: Synthesis, structures and chirality. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2020.05.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
|
10
|
Mitsudo K, Matsuo R, Yonezawa T, Inoue H, Mandai H, Suga S. Electrochemical Synthesis of Thienoacene Derivatives: Transition‐Metal‐Free Dehydrogenative C−S Coupling Promoted by a Halogen Mediator. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202001149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Koichi Mitsudo
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Ren Matsuo
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Toki Yonezawa
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Haruka Inoue
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Hiroki Mandai
- Department of Medical Technology Gifu University of Medical Science 4-3-3 Nijigaoka, Kani Gifu 5 09-0293 Japan
| | - Seiji Suga
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| |
Collapse
|
11
|
Mitsudo K, Matsuo R, Yonezawa T, Inoue H, Mandai H, Suga S. Electrochemical Synthesis of Thienoacene Derivatives: Transition‐Metal‐Free Dehydrogenative C−S Coupling Promoted by a Halogen Mediator. Angew Chem Int Ed Engl 2020; 59:7803-7807. [DOI: 10.1002/anie.202001149] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2020] [Indexed: 11/08/2022]
Affiliation(s)
- Koichi Mitsudo
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Ren Matsuo
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Toki Yonezawa
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Haruka Inoue
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| | - Hiroki Mandai
- Department of Medical Technology Gifu University of Medical Science 4-3-3 Nijigaoka, Kani Gifu 5 09-0293 Japan
| | - Seiji Suga
- Division of Applied Chemistry Graduate School of Natural Science and Technology Okayama University 3-1-1 Tsushima-naka, Kita-ku Okayama 700-8530 Japan
| |
Collapse
|
12
|
Synthesis of [1]benzothiopheno[2,3-b][1]benzothiophene derivatives through iodine-mediated sulfuration reaction of 1,1-diarylethylenes. Tetrahedron Lett 2020. [DOI: 10.1016/j.tetlet.2019.151476] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
|
13
|
Dhbaibi K, Favereau L, Crassous J. Enantioenriched Helicenes and Helicenoids Containing Main-Group Elements (B, Si, N, P). Chem Rev 2019; 119:8846-8953. [DOI: 10.1021/acs.chemrev.9b00033] [Citation(s) in RCA: 242] [Impact Index Per Article: 48.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Kais Dhbaibi
- ISCR (Institut des Sciences Chimiques de Rennes), UMR6226, CNRS, Université Rennes, F-35000 Rennes, France
- Faculty of Science of Gabès, University of Gabés, Zrig, 6072 Gabès Tunisia
| | - Ludovic Favereau
- ISCR (Institut des Sciences Chimiques de Rennes), UMR6226, CNRS, Université Rennes, F-35000 Rennes, France
| | - Jeanne Crassous
- ISCR (Institut des Sciences Chimiques de Rennes), UMR6226, CNRS, Université Rennes, F-35000 Rennes, France
| |
Collapse
|
14
|
Shigemori K, Watanabe M, Kong J, Mitsudo K, Wakamiya A, Mandai H, Suga S. Iodide-Mediated or Iodide-Catalyzed Demethylation and Friedel–Crafts C–H Borylative Cyclization Leading to Thiophene-Fused 1,2-Oxaborine Derivatives. Org Lett 2019; 21:2171-2175. [DOI: 10.1021/acs.orglett.9b00485] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Keisuke Shigemori
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Momoka Watanabe
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Julie Kong
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Hiroki Mandai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| |
Collapse
|
15
|
Mitsudo K, Shigemori K, Mandai H, Wakamiya A, Suga S. Synthesis and Properties of Dithieno-Fused 1,4-Azaborine Derivatives. Org Lett 2018; 20:7336-7340. [DOI: 10.1021/acs.orglett.8b03316] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Koichi Mitsudo
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Keisuke Shigemori
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Hiroki Mandai
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| | - Atsushi Wakamiya
- Institute for Chemical Research, Kyoto University, Uji, Kyoto 611-0011, Japan
| | - Seiji Suga
- Division of Applied Chemistry, Graduate School of Natural Science and Technology, Okayama University, 3-1-1 Tsushima-naka, Kita-ku, Okayama 700-8530, Japan
| |
Collapse
|
16
|
Tian Y, Wang G, Ma Z, Xu L, Wang H. Homochiral Double Helicates Based on Cyclooctatetrathiophene: Chiral Self-Sorting with the Intramolecular S⋅⋅⋅N Interaction. Chemistry 2018; 24:15993-15997. [DOI: 10.1002/chem.201803948] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Indexed: 01/31/2023]
Affiliation(s)
- Yu Tian
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| | - Guangxia Wang
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| | - Zhiying Ma
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| | - Li Xu
- College of Chemistry and Chemical Engineering; Henan University; Kaifeng 475004 P. R. China
| | - Hua Wang
- Engineering Research Center for Nanomaterials; Henan University; Kaifeng 475004 P. R. China
| |
Collapse
|
17
|
Li L, Zhao S, Li B, Xu L, Li C, Shi J, Wang H. From Saddle-Shaped to Planar Cyclic Oligothienoacenes: Stepped-Cyclization and Their Applications in OFETs. Org Lett 2018; 20:2181-2185. [DOI: 10.1021/acs.orglett.8b00482] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lu Li
- School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu 476000, P. R. China
| | | | | | | | | | | | | |
Collapse
|
18
|
El-Hiti GA, Abdel-Wahab BF, Khidre RE, Mostafa MS, Hegazy AS, Kariuki BM. 1-{2-Anilino-4-methyl-5-[5-methyl-1-(4-methylphenyl)-1 H-1,2,3-triazole-4-carbonyl]thiophen-3-yl}ethanone. IUCRDATA 2018. [DOI: 10.1107/s2414314618004029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
Abstract
In the title compound, C24H22N4O2S, the dihedral angle between the triazole and thiophene rings is 4.83 (14)°. The dihedral angles between the triazole and tolyl rings and between the thiophene and phenyl rings are 48.42 (16) and 9.23 (13)°, respectively. An intramolecular N—H...O hydrogen bond closes anS(6) loop. In the crystal, molecules are stacked parallel to thea-axis direction with weak π–π interactions between adjacent thiophenyl and triazolyl groups within the stack [centroid–centroid separation = 3.9811 (16) Å].
Collapse
|
19
|
Thiophene-Based Double Helices: Syntheses, X-ray Structures, and Chiroptical Properties. J Am Chem Soc 2016; 138:10002-10. [DOI: 10.1021/jacs.6b05709] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|