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Ibrahim AE, El Gohary NA, Aboushady D, Samir L, Karim SEA, Herz M, Salman BI, Al-Harrasi A, Hanafi R, El Deeb S. Recent advances in chiral selectors immobilization and chiral mobile phase additives in liquid chromatographic enantio-separations: A review. J Chromatogr A 2023; 1706:464214. [PMID: 37506464 DOI: 10.1016/j.chroma.2023.464214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Revised: 07/10/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023]
Abstract
For decades now, the separation of chiral enantiomers of drugs has been gaining the interest and attention of researchers. In 1991, the first guidelines for development of chiral drugs were firstly released by the US-FDA. Since then, the development in chromatographic enantioseparation tools has been fast and variable, aiming at creating a suitable environment where the physically and chemically identical enantiomers can be separated. Among those tools, the immobilization of chiral selectors (CS) on different stationary phases and the chiral mobile phase additives (CMPA) which have been progressed and studied extensively. This review article highlights the major advances in immobilization of CS together with their different recognition mechanisms as well as CMPA as a cheaper and successful alternative for chiral stationary phases. Moreover, the role of molecular modeling tool as a pre-step in the choice of CS for evaluating possible interactions with different ligands has been pointed up. Illustrations of reported methods and updates for immobilized CS and CMPA have been included.
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Affiliation(s)
- Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Port-Said University, Port-Said 42511, Egypt; Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Nesrine Abdelrehim El Gohary
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Dina Aboushady
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Liza Samir
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Shereen Ekram Abdel Karim
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Magy Herz
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Baher I Salman
- Pharmaceutical Analytical Chemistry Department, Faculty of Pharmacy, Al-Azhar University, Assiut Branch, Assiut, 71524, Egypt
| | - Ahmed Al-Harrasi
- Natural and Medical Sciences Research Center, University of Nizwa, P.O. Box 33, Birkat Al Mauz, Nizwa 616, Sultanate of Oman
| | - Rasha Hanafi
- Pharmaceutical Chemistry Department, Faculty of Pharmacy and Biotechnology, German University in Cairo, Cairo 11835, Egypt
| | - Sami El Deeb
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Braunschweig 38092, Germany; Institute of Pharmacy, Freie Universität Berlin, Königin-Luise-Str. 2+4, 14195 Berlin, Germany.
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2
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Liu G, Guo S, Liu L, Fan Y, Lian Z, Chen X, Jiang H. Shape-Persistent Triptycene-Derived Pillar[6]arenes: Synthesis, Host-Guest Complexation, and Enantioselective Recognitions of Chiral Ammonium Salts. J Org Chem 2023. [PMID: 37437175 DOI: 10.1021/acs.joc.3c01197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/14/2023]
Abstract
Construction of macrocyclic hosts with a novel structure and excellent property has emerged as an intriguing undertaking for the past few years. Here, we reported the synthesis of shape-persistent triptycene-derived pillar[6]arene (TP[6]). The single crystal structure analysis revealed that the macrocyclic molecule adopts a hexagonal structure, featuring a helical and electron-rich cavity capable of encapsulating electron-deficient guests. In order to obtain chiral TP[6] from an enantiomerically pure triptycene building block, an efficient resolution of chiral triptycene was successfully developed through introducing chiral auxiliaries into triptycene skeletons. The 1H NMR and isothermal titration calorimetry investigations demonstrated that chiral TP[6] exhibited enantioselectivity toward four pairs of chiral guests containing a trimethylamino group, implying a significant promising application in area of enantioselective recognition.
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Affiliation(s)
- Guoqin Liu
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Shengzhu Guo
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Lin Liu
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Yanqing Fan
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Zhe Lian
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Xuebo Chen
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
| | - Hua Jiang
- College of Chemistry, Beijing Normal University, Beijing 100875, P.R. China
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3
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Ermakova EA, Ivanova AV, Kurbanov RK, Shurpik DN, Stoikov II, Zuev YF, Khairutdinov BI. Stereochemical inversion of pillar[5]arene. NMR and DFT studies. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134403] [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]
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4
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Ji J, Wei X, Wu W, Fan C, Zhou D, Kanagaraj K, Cheng G, Luo K, Meng XG, Yang C. The More the Slower: Self-Inhibition in Supramolecular Chirality Induction, Memory, Erasure, and Reversion. J Am Chem Soc 2022; 144:1455-1463. [PMID: 35029384 DOI: 10.1021/jacs.1c13210] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Self-inhibition has been observed widely in hierarchical biochemical processes but has yet to be demonstrated in pure molecular physical rather than chemical or biological processes. Herein, we report an unprecedented example of self-inhibition during the supramolecular chirality induction, memory, erasure, and inversion processes of pillar[5]arene (P[5]) derivatives. The addition of chiral alanine ethyl ester to bulky substituent-modified P[5]s led to time-dependent chirality induction due to the shift in the equilibrium of the SP and RP conformers P[5]. Intriguingly, more chiral inducers led to more intensive final chiroptical properties but lower chiral induction rates. Thus, the chiral inducer plays the role of both activator and inhibitor. Such self-inhibition essentially arises from kinetics manipulation of three tandem equilibria. Moreover, the chiroptical properties could be memorized by replacing the chiral inducer with an achiral competitive binder, and the chiroptical signal could be erased and reversed by an antipodal chiral inducer, which also showed the self-inhibition property.
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Affiliation(s)
- Jiecheng Ji
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Xueqin Wei
- School of Pharmacy, Guangxi Medical University, Nanning 530021, China
| | - Wanhua Wu
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Chunying Fan
- School of Pharmacy, Health Science Center, Xi'an Jiaotong University, Xi'an 710061, China
| | - Dayang Zhou
- Comprehensive Analysis Center, ISIR, Osaka University, Ibaraki 5670047, Japan
| | - Kuppusamy Kanagaraj
- Center for Supramolecular Chemistry & Catalysis and Department of Chemistry, College of Science, Shanghai University, Shanghai 200444, China
| | - Guo Cheng
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Kui Luo
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Xiang-Guang Meng
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
| | - Cheng Yang
- Key Laboratory of Green Chemistry & Technology, College of Chemistry, Huaxi MR Research Center (HMRRC), Department of Radiology, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, 29 Wangjiang Road, Chengdu 610064, China
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5
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Shi C, Li H, Shi X, Zhao L, Qiu H. Chiral pillar[n]arenes: Conformation inversion, material preparation and applications. CHINESE CHEM LETT 2021. [DOI: 10.1016/j.cclet.2021.12.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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6
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Abstract
The construction of chemical sensors that can distinguish molecular chirality has attracted increasing attention in recent years due to the significance of chiral organic molecules and the importance of detecting their absolute configuration and chiroptical purity. The supramolecular chirality sensing strategy has shown promising potential due to its advantages of high throughput, sensitivity, and fast chirality detection. This review focuses on chirality sensors based on macrocyclic compounds. Macrocyclic chirality sensors usually have inherent complexing ability towards certain chiral guests, which combined with the signal output components, could offer many unique advantages/properties compared to traditional chiral sensors. Chirality sensing based on macrocyclic sensors has shown rapid progress in recent years. This review summarizes recent advances in chirality sensing based on both achiral and chiral macrocyclic compounds, especially newly emerged macrocyclic molecules.
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7
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Chen JF, Ding JD, Wei TB. Pillararenes: fascinating planar chiral macrocyclic arenes. Chem Commun (Camb) 2021; 57:9029-9039. [PMID: 34498646 DOI: 10.1039/d1cc03778a] [Citation(s) in RCA: 42] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Chiral macrocycles possess significant value in chiral science and supramolecular chemistry. Pillararenes, as a class of relatively young supramolecular macrocyclic hosts, have been widely used for host-guest recognition and self-assembly. Since the position of substituents on the benzene rings breaks the molecular symmetry (symmetric plane and symmetric center), pillararenes possess planar chirality. However, it is a great challenge to synthesize stable and resolvable enantiomers because of the easy rotation of the phenylene group. In this review, we summarize the construction methods of resolvable chiral pillararenes. We also focus on their applications in enantioselective recognition, chiral switches, chirality sensing, asymmetric catalysis, circularly polarized luminescence, metal-organic frameworks, and highly permeable membranes. Finally, we discuss the future research perspectives in this field of pillararene-based planar chiral materials. We hope that this review will encourage more researchers to work in this exciting field.
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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, School of Chemistry and Chemical Engineering, Beijing Institute of Technology of China, Beijing, 102488, China
| | - Jin-Dong Ding
- Shaanxi Key Laboratory of National Products & Chemical Biology, College of Chemistry & Pharmacy, Northwest A&F University, Yangling, 712100, P. R. China
| | - Tai-Bao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu, 730070, P. R. China.
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8
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Wang H, Yang W, Baldridge KK, Zhan CH, Thikekar TU, Sue ACH. Spontaneous and induced chiral symmetry breaking of stereolabile pillar[5]arene derivatives upon crystallisation. Chem Sci 2021; 12:10985-10989. [PMID: 34522295 PMCID: PMC8386666 DOI: 10.1039/d1sc02560k] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 07/19/2021] [Indexed: 12/31/2022] Open
Abstract
Stereolabile pillar[5]arene (P[5]) derivatives, which are dynamic racemic mixtures in solution on account of their low inversion barriers, were employed as platforms to study chiral symmetry breaking during crystallisation. In the solid state, we showed that crystal enantiomeric excess of a conglomerate-forming P[5] derivative can be obtained by handpicking and Viedma ripening without the intervention of external chiral entities. On the other hand, in the presence of ethyl d/l-lactate as both optically-active solvents and chiral guests, the handedness of P[5] derivative crystals, either forming racemic compounds or conglomerates upon condensation, can be directed and subsequently inverted in a highly controllable manner. Stereolabile pillar[5]arene derivatives, which are dynamic racemic mixtures in solution on account of their low inversion barriers, were employed as platforms to study chiral symmetry breaking during crystallisation.![]()
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Affiliation(s)
- Haiying Wang
- School of Pharmaceutical Science & Technology, Tianjin University 92 Weijin Road, Nankai District Tianjin 300072 P. R. China
| | - Weiwei Yang
- School of Pharmaceutical Science & Technology, Tianjin University 92 Weijin Road, Nankai District Tianjin 300072 P. R. China
| | - Kim K Baldridge
- School of Pharmaceutical Science & Technology, Tianjin University 92 Weijin Road, Nankai District Tianjin 300072 P. R. China
| | - Cai-Hong Zhan
- College of Chemistry and Life Sciences, Zhejiang Normal University 688 Yingbin Road Jinhua Zhejiang Province 321004 P. R. China
| | - Tushar Ulhas Thikekar
- 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 S Rd, Siming District Xiamen Fujian Province 361005 P. R. China
| | - Andrew C-H Sue
- College of Chemistry and Chemical Engineering, Xiamen University 422 Siming S Rd, Siming District Xiamen Fujian Province 361005 P. R. China
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9
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Liu C, Yu Z, Yao J, Ji J, Zhao T, Wu W, Yang C. Solvent-Driven Chirality Switching of a Pillar[4]arene[1]quinone Having a Chiral Amine-Substituted Quinone Subunit. Front Chem 2021; 9:713305. [PMID: 34307304 PMCID: PMC8293272 DOI: 10.3389/fchem.2021.713305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Accepted: 06/14/2021] [Indexed: 11/14/2022] Open
Abstract
Several new chiral pillar[4]arene[1]quinone derivatives were synthesized by reacting pillar[4]arene[1]quinone (EtP4Q1), containing four 1,4-diethoxybenzene units and one benzoquinone unit, with various chiral amines via Michael addition. Due to the direct introduction of chiral substituents on the rim of pillar[n]arene and the close location of the chiral center to the rim of EtP4Q1, the newly prepared compounds showed unique chiroptical properties without complicated chiral resolution processes, and unprecedented high anisotropy factor of up to −0.018 at the charge transfer absorption band was observed. Intriguingly, the benzene sidearm attached pillar[4]arene[1]quinone derivative 1a showed solvent- and complexation-driven chirality inversion. This work provides a promising potential for absolute asymmetric synthesis of pillararene-based derivatives.
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Affiliation(s)
- Chunhong Liu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
| | - Zhipeng Yu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
| | - Jiabin Yao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
| | - Jiecheng Ji
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
| | - Ting Zhao
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
| | - Wanhua Wu
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
| | - Cheng Yang
- Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, China
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10
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Abstract
Chirality is an inevitable property of our Universe, having an enormous impact in different fields, ranging from nuclear physics and astronomy to living organisms and human beings [...]
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11
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Du K, Demay-Drouhard P, Samanta K, Li S, Thikekar TU, Wang H, Guo M, van Lagen B, Zuilhof H, Sue ACH. Stereochemical Inversion of Rim-Differentiated Pillar[5]arene Molecular Swings. J Org Chem 2020; 85:11368-11374. [PMID: 32820630 PMCID: PMC7498154 DOI: 10.1021/acs.joc.0c01464] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
![]()
To
investigate the dynamic stereochemical inversion behavior of
pillar[5]arenes (P[5]s) in more detail, we synthesized a series of
novel rim-differentiated P[5]s with various substituents and examined
their rapid rotations by variable-temperature NMR (203–298
K). These studies revealed for the first time the barrier of “methyl-through-the-annulus”
rotation (ΔG‡ = 47.4 kJ·mol–1 in acetone) and indicated that for rim-differentiated
P[5]s with two types of alkyl substituents, the smaller rim typically
determines the rate of rotation. However, substituents with terminal
C=C or C≡C bonds give rise to lower inversion barriers,
presumably as a result of attractive π–π interactions
in the transition state. Finally, data on a rim-differentiated penta-methyl-penta-propargyl
P[5] exhibited the complexity of the overall inversion dynamics.
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Affiliation(s)
- Ke Du
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Paul Demay-Drouhard
- 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, 6703 WE Wageningen, The Netherlands
| | - Kushal Samanta
- 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, 6703 WE Wageningen, The Netherlands
| | - Shunshun Li
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Tushar Ulhas Thikekar
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
| | - Haiying Wang
- 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
| | - Barend van Lagen
- Laboratory of Organic Chemistry, Wageningen University, Stippeneng 4, 6703 WE Wageningen, The Netherlands
| | - 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, 6703 WE Wageningen, The Netherlands.,Department of Chemical and Materials Engineering, King Abdulaziz University, 21589 Jeddah, Saudi Arabia
| | - Andrew C-H Sue
- Institute for Molecular Design and Synthesis, School of Pharmaceutical Science & Technology, Tianjin University, 92 Weijin Road, Nankai District, Tianjin 300072, P. R. China
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12
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Xiao C, Wu W, Liang W, Zhou D, Kanagaraj K, Cheng G, Su D, Zhong Z, Chruma JJ, Yang C. Redox‐Triggered Chirality Switching and Guest‐Capture/Release with a Pillar[6]arene‐Based Molecular Universal Joint. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.201916285] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Chao Xiao
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Wanhua Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Wenting Liang
- Institute of Environmental SciencesShanxi University China
| | - Dayang Zhou
- Comprehensive Analysis Center, ISIROsaka University Japan
| | - Kuppusamy Kanagaraj
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Guo Cheng
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Dan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Zhihui Zhong
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Jason J. Chruma
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
| | - Cheng Yang
- Key Laboratory of Green Chemistry & Technology of Ministry of EducationCollege of ChemistryState Key Laboratory of Biotherapy, and Healthy Food Evaluation Research CenterSichuan University Chengdu 610064 China
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13
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Xiao C, Wu W, Liang W, Zhou D, Kanagaraj K, Cheng G, Su D, Zhong Z, Chruma JJ, Yang C. Redox-Triggered Chirality Switching and Guest-Capture/Release with a Pillar[6]arene-Based Molecular Universal Joint. Angew Chem Int Ed Engl 2020; 59:8094-8098. [PMID: 31958199 DOI: 10.1002/anie.201916285] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/18/2020] [Indexed: 11/05/2022]
Abstract
A chiral electrochemically responsive molecular universal joint (EMUJ) was synthesized by fusing a macrocyclic pillar[6]arene (P[6]) to a ferrocene-based side ring. A single crystal of an enantiopure EMUJ was successfully obtained, which allowed, for the first time, the definitive correlation between the absolute configuration and the circular dichroism spectrum of a P[6] derivative to be determined. The self-inclusion and self-exclusion conformational change of the EMUJ led to a chiroptical inversion of the P[6] moiety, which could be manipulated by both solvents and changes in temperature. The EMUJ also displayed a unique redox-triggered reversible in/out conformational switching, corresponding to an occupation/voidance switching of the P[6] cavity, respectively. This phenomenon is an unprecedented electrochemical manipulation of the capture and release of guest molecules by supramolecular hosts.
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Affiliation(s)
- Chao Xiao
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Wanhua Wu
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Wenting Liang
- Institute of Environmental Sciences, Shanxi University, China
| | - Dayang Zhou
- Comprehensive Analysis Center, ISIR, Osaka University, Japan
| | - Kuppusamy Kanagaraj
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Guo Cheng
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Dan Su
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Zhihui Zhong
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Jason J Chruma
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
| | - Cheng Yang
- Key Laboratory of Green Chemistry & Technology of Ministry of Education, College of Chemistry, State Key Laboratory of Biotherapy, and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, 610064, China
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14
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Ji J, Li Y, Xiao C, Cheng G, Luo K, Gong Q, Zhou D, Chruma JJ, Wu W, Yang C. Supramolecular enantiomeric and structural differentiation of amino acid derivatives with achiral pillar[5]arene homologs. Chem Commun (Camb) 2019; 56:161-164. [PMID: 31799971 DOI: 10.1039/c9cc08541f] [Citation(s) in RCA: 57] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Complexation of achiral pillar[5]arenes with chiral amines induced strong circular dichroism (CD) signals. The CD responses differed drastically depending on the nature of the amino acid guest, and they significantly varied and part of them even inverted, upon increasing the length of the alkyl chains of the pillar[5]arenes guests. Accordingly, this tactic allowed for the unprecedented simultaneous enantiomeric and structural differentiation of α-amino esters with homologous molecular hosts.
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Affiliation(s)
- Jiecheng Ji
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Yizhou Li
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Chao Xiao
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Guo Cheng
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Kui Luo
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Qiyong Gong
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Dayang Zhou
- Comprehensive Analysis Center, ISIR, Osaka University, Japan
| | - Jason J Chruma
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Wanhua Wu
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
| | - Cheng Yang
- Huaxi MR Research Center (HMRRC), Department of Radiology, West China Hospital, Key Laboratory of Green Chemistry & Technology, College of Chemistry, and Healthy Food Evaluation Research Center, Sichuan University, 29 Wangjiang Road, Chengdu, 610064, China.
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