1
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Fang W, Zhang J, Guo M, Zhao Y, Sue ACH. Triphenylamine[3]arenes: Streamlining Synthesis of a Versatile Macrocyclic Platform for Supramolecular Architectures and Functionalities. Angew Chem Int Ed Engl 2024; 63:e202409120. [PMID: 38770884 DOI: 10.1002/anie.202409120] [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: 05/14/2024] [Accepted: 05/21/2024] [Indexed: 05/22/2024]
Abstract
Triphenylamine[3]arenes (TPA[3]s), featuring [16]paracyclophane backbone with alternating carbon and nitrogen bridging atoms, were synthesized through a BF3 ⋅ Et2O-catalyzed cyclization reaction using triphenylamine derivatized monomers and paraformaldehyde. This molecular design yielded a series of TPA[3] macrocycles with high efficiency, with their facile derivatizations also successfully demonstrated. On account of the strong electron-donating properties of the TPA moieties, these TPA[3]s exhibit remarkable delayed fluorescence, and possess a significant affinity for iodine. Furthermore, their inherent three-fold symmetry rendered TPA[3]s as novel building blocks for the construction of extended frameworks and molecular cages. This advancement expands the versatility of discrete macrocycles into complex architectures, enhancing their applicability across a broad spectrum of applications.
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Affiliation(s)
- Wangjian Fang
- School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, Fujian Province, 361005, P. R. China
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Jianyu Zhang
- School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Minjie Guo
- School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Yanli Zhao
- School of Chemistry, Chemical Engineering and Biotechnology, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore
| | - Andrew C-H Sue
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, Fujian Province, 361005, P. R. China
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2
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Shi TH, Akine S, Ohtani S, Kato K, Ogoshi T. Friedel-Crafts Acylation for Accessing Multi-Bridge-Functionalized Large Pillar[n]arenes. Angew Chem Int Ed Engl 2024; 63:e202318268. [PMID: 38108597 DOI: 10.1002/anie.202318268] [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: 11/29/2023] [Revised: 12/17/2023] [Accepted: 12/18/2023] [Indexed: 12/19/2023]
Abstract
Pillar[n]arenes can be constructed using a Friedel-Crafts alkylation process. However, due to the reversible nature of the alkylation, mixture of large pillar[n]arenes (n≥7) are obtained as minor products, and thus laborious purification are necessary to isolate the larger pillar[n]arenes. Moreover, inert methylene bridges are introduced during the alkylation process, and the multi-functionalization of the bridges has never been investigated. Herein, an irreversible Friedel-Crafts acylation is used to prepare pillar[n]arenes. Due to the irreversible nature of the acylation, the reaction of precursors bearing carboxylic acids and electron-rich arene rings results in a size-exclusive formation of pillar[n]arenes, in which the ring-size is determined by the precursor length. Because of this size-selective formation, laborious separation of undesired macrocycles is not necessary. Moreover, the bridges of pillar[n]arenes are selectively installed with reactive carbonyl groups using the acylation method, whose positions are determined by the precursor used. The carbonyl bridges can be easily converted into versatile functional groups, leading to various laterally modified pillar[n]arenes, which cannot be accessed by the alkylation strategy.
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Affiliation(s)
- Tan-Hao Shi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
| | - Shigehisa Akine
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Ishikawa, Japan
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Ishikawa, Japan
| | - Shunsuke Ohtani
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
| | - Kenichi Kato
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
| | - Tomoki Ogoshi
- Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, 615-8510, Kyoto, Japan
- WPI Nano Life Science Institute (WPI-NanoLSI), Kanazawa University, Kakuma-machi, 920-1192, Kanazawa, Ishikawa, Japan
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Coady Z, Smith JN, Wilson KA, White NG. Stereoselective Single Step Cyclization to Give Belt-Functionalized Pillar[6]arenes. J Org Chem 2024; 89:1397-1406. [PMID: 38214497 DOI: 10.1021/acs.joc.3c01868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2024]
Abstract
Two macrocycles were synthesized through cyclization reactions of secondary benzylic alcohols, giving pillar[6]arenes with a methyl substituent at each belt position. These macrocycles form stereoselectively with only the rtctct isomer with alternating up and down orientations of the belt methyl groups definitively identified. Isolated yields were modest (7 and 9%), but the macrocycles are prepared in a single step from either a commercially available alcohol or a very readily prepared precursor. X-ray crystal structures of the macrocycles indicate they have a capsule-like structure, which is far from the conventional pillar shape. Density functional theory calculations reveal that the energy barrier required to obtain the pillar conformation is significantly higher for these belt-functionalized macrocycles than for conventional belt-unfunctionalized pillar[6]arenes.
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Affiliation(s)
- Zeke Coady
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Jordan N Smith
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
| | - Katie A Wilson
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
- Department of Biochemistry, Memorial University of Newfoundland, St. John's, Newfoundland and Labrador A1C 5S7, Canada
| | - Nicholas G White
- Research School of Chemistry, Australian National University, Canberra, Australian Capital Territory 2601, Australia
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Ling L, Zhao Z, Mao L, Wang S, Ma D. Water-soluble pillar[6]arene bearing pyrene on alternating methylene bridges for direct spermine sensing. Chem Commun (Camb) 2023; 59:14161-14164. [PMID: 37955311 DOI: 10.1039/d3cc05094g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2023]
Abstract
This paper describes the design and synthesis of a conjugate, which is composed of a percarboxylated water-soluble pillar[6]arene and three fluorescent pyrene chromophores on alternating methylene bridges. The optical characteristics are investigated. This conjugate is capable of encapsulating polycationic guest spermine, which results in an enhancement in the fluorescence intensity of pyrene. This host-pyrene conjugate is used for direct sensing of spermine, which shows selectivity towards a variety of biological analytes. The detection of spermine is demonstrated in live cells.
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Affiliation(s)
- Li Ling
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Zizhen Zhao
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Lijun Mao
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
| | - Shuyi Wang
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
- Department of Chemistry, Fudan University, 2205 Songhu Road, Shanghai 200438, China
| | - Da Ma
- School of Pharmaceutical Engineering & Institute of Advanced Studies, Taizhou University, 1139 Shifu Road, Taizhou, Zhejiang 318000, China.
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Chao Y, Thikekar TU, Fang W, Chang R, Xu J, Ouyang N, Xu J, Gao Y, Guo M, Zuilhof H, Sue ACH. "Rim-Differentiated" Pillar[6]arenes. Angew Chem Int Ed Engl 2022; 61:e202204589. [PMID: 35451151 DOI: 10.1002/anie.202204589] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Indexed: 11/06/2022]
Abstract
A "rim-differentiated" pillar[6]arene (RD-P[6]) was obtained successfully, with the assistance of a dimeric silver trifluoroacetate template, among eight different constitutional isomers in a direct and regioselective manner. The solid-state conformation of this macrocycle could switch from the 1,3,5-alternate to a truly rim-differentiated one upon guest inclusion. This highly symmetric RD-P[6] not only hosts metal-containing molecules inside its cavity, but also can form a pillar[6]arene-C60 adduct through co-crystallization on account of donor-acceptor interactions. The development of synthetic strategies to desymmetrize pillararenes offers new opportunities for engineering complex molecular architectures and organic electronic materials.
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Affiliation(s)
- Yang Chao
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China.,College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Tushar Ulhas Thikekar
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Wangjian Fang
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Rong Chang
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
| | - Jiong Xu
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Nianfeng Ouyang
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Jun Xu
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Yan Gao
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Minjie Guo
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China
| | - Han Zuilhof
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin, 300072, P. R. China.,Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6708 WE, Wageningen, The Netherlands.,Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Andrew C-H Sue
- College of Chemistry and Chemical Engineering, Xiamen University, 422 Siming South Road, Siming District, Xiamen, 361005, P. R. China
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Chao Y, Thikekar TU, Fang W, Chang R, Xu J, Ouyang N, Xu J, Gao Y, Guo M, Zuilhof H, Sue ACH. "Rim‐Differentiated" Pillar[6]arenes. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202204589] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yang Chao
- Tianjin University School of Pharmaceutical Science and Technology CHINA
| | | | - Wangjian Fang
- Tianjin University School of Pharmaceutical Science & Technology CHINA
| | - Rong Chang
- Xiamen University College of Chemistry and Chemical Engineering CHINA
| | - Jiong Xu
- Xiamen University College of Chemistry and Chemical Engineering CHINA
| | - Nianfeng Ouyang
- Xiamen University College of Chemistry & Chemical Engineering CHINA
| | - Jun Xu
- Tianjin University School of Pharmaceutical Science and Technology CHINA
| | - Yan Gao
- Tianjin University School of Pharmaceutical Science and Technology CHINA
| | - Minjie Guo
- Tianjin University School of Pharmaceutical Science & Technology CHINA
| | - Han Zuilhof
- WUR: Wageningen University & Research Chemistry NETHERLANDS
| | - Andrew Chi-Hau Sue
- Xiamen University College of Chemistry and Chemical Engineering 422 Siming S. Rd.Siming Dist. 361005 Xiamen CHINA
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Chen JF, Tian G, Liu K, Zhang N, Wang N, Yin X, Chen P. Pillar[5]arene-based Neutral Radicals with Doublet Red Emissions and Stable Chiroptical Properties. Org Lett 2022; 24:1935-1940. [PMID: 35243861 DOI: 10.1021/acs.orglett.2c00313] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Stable organic radicals with unique luminescence show great importance in photoelectromagnetic materials. We herein report two unusual radical-based systems (P5N-TTM and P5B-TTM) using the concerted effects of planar chiral pillar[5]arenes and tris(2,4,6-trichlorophenyl)methyl (TTM) radicals. The steric effect and electronic doublet-spin character of these radicals allowed the optical resolution and the first red emissions (∼650 nm) for pillar[5]arene derivatives. Notably, cross-coupling with macrocyclic pillar[5]arene, in turn, considerably enhanced the configurational stability of TTM radicals.
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Affiliation(s)
- Jin-Fa Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Guoqing Tian
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Kanglei Liu
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Niu Zhang
- Analysis & Testing Centre, Beijing Institute of Technology of China, Beijing 102488, China
| | - Nan Wang
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Xiaodong Yin
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
| | - Pangkuan Chen
- Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, Key Laboratory of Cluster Science of the Ministry of Education, Key Laboratory of Medical Molecule Science and Pharmaceutics Engineering of the Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing 102488, China
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Hexnut[12]arene and its derivatives: Synthesis, host-guest properties, and application as nonporous adaptive crystals. Sci China Chem 2022. [DOI: 10.1007/s11426-021-1186-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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