1
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Peddi S, Bookout MC, Vemuri GN, Hartley CS. Guest-Driven Control of Folding in a Crown-Ether-Functionalized ortho-Phenylene. J Org Chem 2022; 87:3686-3690. [PMID: 35023738 DOI: 10.1021/acs.joc.1c02605] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A crown-ether-functionalized o-phenylene tetramer has been synthesized and coassembled with monotopic and ditopic, achiral and chiral secondary ammonium ion guests. NMR spectroscopy shows that the o-phenylene forms both 1:1 and 1:2 complexes with monotopic guests while remaining well-folded. Binding of an elongated ditopic guest, however, forces the o-phenylene to misfold by pulling the terminal rings apart. A chiral ditopic guest biases the o-phenylene twist sense.
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Affiliation(s)
- Sumalatha Peddi
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Molly C Bookout
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - Gopi Nath Vemuri
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
| | - C Scott Hartley
- Department of Chemistry & Biochemistry, Miami University, Oxford, Ohio 45056, United States
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2
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Tajima S, Muranaka A, Naito M, Taniguch N, Harada M, Miyagawa S, Ueda M, Takaya H, Kobayashi N, Uchiyama M, Tokunaga Y. Synthesis of a Mechanically Planar Chiral and Axially Chiral [2]Rotaxane. Org Lett 2021; 23:8678-8682. [PMID: 34730985 DOI: 10.1021/acs.orglett.1c02983] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this study, we synthesized a [2]rotaxane that was both mechanically planar chiral and axially chiral, comprising a symmetrical bis-crown ether featuring a biphenyl moiety (as the macrocyclic component) and a symmetrical bis-ammonium salt (as the dumbbell-shaped component).
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Affiliation(s)
- Shinya Tajima
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan
| | - Atsuya Muranaka
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, 2-1 Hirosawa, Wako-shi, Saitama 351-0198, Japan
| | - Masaya Naito
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan
| | - Noriho Taniguch
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan
| | - Mei Harada
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Shinobu Miyagawa
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan
| | - Masahiro Ueda
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan
| | - Hikaru Takaya
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan.,Institute for Molecular Science, National Institute of Natural Science, Nishigo-Naka, Myodaiji, Okazaki 444-8585, Japan
| | - Nagao Kobayashi
- Faculty of Textile Science and Technology, Shinshu University, Tokida, Ueda, Nagano 386-8567, Japan
| | - Masanobu Uchiyama
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui 910-8507, Japan
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3
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Abstract
Hexamethoxycalix[6]arene 3 forms a directional pseudorotaxane complex with the chiral axle (S)-(α-methyl-benzyl)benzylammonium 2+. Between the two (endo-chiral)-2+@3 and (exo-chiral)-2+@3 pseudorotaxane stereoisomers, the former is preferentially formed. This result confirms the validity of the “endo-α-methyl-benzyl rule”, previously reported by us. DFT calculations suggest that C-H … π interactions between the methyl group of 2+ and the calixarene aromatic rings, determine the stereoselectivity of the threading process toward the “endo-α-methyl-benzyl preference”. An amplification of optical rotation is observed upon formation of the pseudorotaxane complex (endo-chiral)-2+@3 with respect to free axle 2+. Thus, the specifical rotation of the 1:1 mixture of chiral 2+·B(ArF)4− salt and achiral 3 was augmented upon formation of the pseudorotaxane and DFT calculations were used to rationalize this result.
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4
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Chiroptical Sensing of Amino Acid Derivatives by Host-Guest Complexation with Cyclo[6]aramide. Molecules 2021; 26:molecules26134064. [PMID: 34279403 PMCID: PMC8271771 DOI: 10.3390/molecules26134064] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/29/2021] [Accepted: 06/30/2021] [Indexed: 02/03/2023] Open
Abstract
A hydrogen-bonded (H-bonded) amide macrocycle was found to serve as an effective component in the host–guest assembly for a supramolecular chirality transfer process. Circular dichroism (CD) spectroscopy studies showed that the near-planar macrocycle could produce a CD response when combined with three of the twelve L-α-amino acid esters (all cryptochiral molecules) tested as possible guests. The host–guest complexation between the macrocycle and cationic guests was explored using NMR, revealing the presence of a strong affinity involving the multi-point recognition of guests. This was further corroborated by density functional theory (DFT) calculations. The present work proposes a new strategy for amplifying the CD signals of cryptochiral molecules by means of H-bonded macrocycle-based host–guest association, and is expected to be useful in designing supramolecular chiroptical sensing materials.
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5
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Ju H, Tsuruoka Y, Hayano M, Lee E, Park K, Ikeda M, Ishi‐i J, Kuwahara S, Habata Y. Pentacyclic Nano‐Trefoil. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202010436] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Huiyeong Ju
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Yumiko Tsuruoka
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Miho Hayano
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Eunji Lee
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department of Chemistry Gangneung-Wonju National University Gangneung 25457 South Korea
| | - Ki‐Min Park
- Research Institute of Natural Sciences Gyeongsang National University Jinju 52828 South Korea
| | - Mari Ikeda
- Department of Chemistry Education Center Faculty of Engineering Chiba Institute of Technology 2-1-1 Shibazono, Narashino Chiba 275-0023 Japan
| | - Jun‐ichi Ishi‐i
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department Research Center for Materials with Integrated Properties Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Shunsuke Kuwahara
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department Research Center for Materials with Integrated Properties Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Yoichi Habata
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department Research Center for Materials with Integrated Properties Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
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6
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Kimura T, Miyagawa S, Takaya H, Naito M, Tokunaga Y. Locking the Dynamic Axial Chirality of Biphenyl Crown Ethers through Threading. Chem Asian J 2020; 15:3897-3903. [PMID: 33026146 DOI: 10.1002/asia.202001046] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 09/26/2020] [Indexed: 12/17/2022]
Abstract
This paper describes the syntheses of [2]rotaxanes comprising 23- and 26-membered biphenyl crown ethers as the macrocyclic components and secondary ammonium ions as the dumbbell-shaped components, and the locking of the dynamic axial chirality of the biphenyl moieties in these structures. Chiral high-performance liquid chromatography (HPLC) revealed that our [2]rotaxane featuring the 26-membered crown ether racemized at room temperature, but the racemization of the [2]rotaxane featuring the 23-membered crown ether did not proceed at room temperature over a period of three days. After separation of the enantiomers of the [2]rotaxane incorporating the 23-membered crown ether through chiral HPLC, we studied its racemization at elevated temperature. The rate of stereoinversion in dimethylsulfoxide (a polar solvent) was faster than that in o-dichlorobenzene (a nonpolar solvent), and herein we discuss these kinetic parameters.
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Affiliation(s)
- Tomoya Kimura
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| | - Shinobu Miyagawa
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| | - Hikaru Takaya
- International Research Center for Elements Science, Institute for Chemical Research, Kyoto University, Uji, 611-0011, Japan.,Institute for Molecular Science, National Institute of Natural Science, Okazaki, 444-8585, Japan
| | - Masaya Naito
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
| | - Yuji Tokunaga
- Department of Materials Science and Engineering, Faculty of Engineering, University of Fukui, Bunkyo, Fukui, 910-8507, Japan
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7
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Ju H, Tsuruoka Y, Hayano M, Lee E, Park K, Ikeda M, Ishi‐i J, Kuwahara S, Habata Y. Pentacyclic Nano‐Trefoil. Angew Chem Int Ed Engl 2020; 60:650-654. [DOI: 10.1002/anie.202010436] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/15/2020] [Indexed: 12/19/2022]
Affiliation(s)
- Huiyeong Ju
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Yumiko Tsuruoka
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Miho Hayano
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Eunji Lee
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department of Chemistry Gangneung-Wonju National University Gangneung 25457 South Korea
| | - Ki‐Min Park
- Research Institute of Natural Sciences Gyeongsang National University Jinju 52828 South Korea
| | - Mari Ikeda
- Department of Chemistry Education Center Faculty of Engineering Chiba Institute of Technology 2-1-1 Shibazono, Narashino Chiba 275-0023 Japan
| | - Jun‐ichi Ishi‐i
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department Research Center for Materials with Integrated Properties Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Shunsuke Kuwahara
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department Research Center for Materials with Integrated Properties Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
| | - Yoichi Habata
- Department of Chemistry Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
- Department Research Center for Materials with Integrated Properties Faculty of Science Toho University, 2-2-1 Miyama, Funabashi Chiba 274-8510 Japan
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8
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Lee E, Ukekawa T, Ikeda M, Ju H, Kuwahara S, Habata Y. Chiral Argentivorous Molecules Having Biphenyl Groups as Side-arms: Drastic Enhancements in CD Intensities. CHEM LETT 2020. [DOI: 10.1246/cl.200434] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Eunji Lee
- Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Tomoko Ukekawa
- Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Mari Ikeda
- Education Centre, Faculty of Engineering, Chiba Institute of Technology, 2-1-1 Shibazono, Narashino, Chiba 275-0023, Japan
| | - Huiyeong Ju
- Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Shunsuke Kuwahara
- Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
- Research Center for Materials with Integrated Properties, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
| | - Yoichi Habata
- Department of Chemistry, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
- Research Center for Materials with Integrated Properties, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan
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9
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Lee E, Okazaki C, Tenma H, Hosoi Y, Ju H, Ikeda M, Kuwahara S, Habata Y. Argentivorous Molecules Exhibiting Highly Selective Silver(I) Chiral Enhancement. Inorg Chem 2020; 59:13435-13441. [DOI: 10.1021/acs.inorgchem.0c01819] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Mari Ikeda
- Education Center, Faculty of Engineering, Chiba Institute of Technology, 2-1-1 Shibazono, Narashino, Chiba 275-0023, Japan
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10
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David AHG, Casares R, Cuerva JM, Campaña AG, Blanco V. A [2]Rotaxane-Based Circularly Polarized Luminescence Switch. J Am Chem Soc 2019; 141:18064-18074. [PMID: 31638802 PMCID: PMC6975276 DOI: 10.1021/jacs.9b07143] [Citation(s) in RCA: 93] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
![]()
A rotaxane-based molecular shuttle
has been synthesized in which
the switching of the position of a fluorescent macrocycle on the thread
turns “on” or “off” the circularly polarized
luminescence (CPL) of the system while maintaining similar fluorescence
profiles and quantum yields in both states. The chiroptical activity
relies on the chiral information transfer from an ammonium salt incorporating d- or l-phenylalanine residues as chiral stereogenic
covalent units to an otherwise achiral crown ether macrocycle bearing
a luminescent 2,2′-bipyrene unit when they interact through
hydrogen bonding. Each enantiomeric thread induces CPL responses of
opposite signs on the macrocycle. Upon addition of base, the switching
of the position of the macrocycle to a triazolium group disables the
chiral information transfer to the macrocycle, switching “off”
the CPL response. The in situ switching upon several acid/base cycles
is also demonstrated.
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Affiliation(s)
- Arthur H G David
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Raquel Casares
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Juan M Cuerva
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Araceli G Campaña
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
| | - Victor Blanco
- Departamento de Química Orgánica, Facultad de Ciencias, Unidad de Excelencia de Química Aplicada a Biomedicina y Medioambiente (UEQ) , Universidad de Granada (UGR) , Avda. Fuente Nueva S/N , Granada 18071 , Spain
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11
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Ju H, Chang DJ, Kim S, Ryu H, Lee E, Park IH, Jung JH, Ikeda M, Habata Y, Lee SS. Cation-Selective and Anion-Controlled Fluorogenic Behaviors of a Benzothiazole-Attached Macrocycle That Correlate with Structural Coordination Modes. Inorg Chem 2016; 55:7448-56. [DOI: 10.1021/acs.inorgchem.6b00690] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huiyeong Ju
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
| | - Duk Jin Chang
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
- Bongilcheon High School, Paju 10938, S. Korea
| | - Seulgi Kim
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
| | - Hyunsoo Ryu
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
| | - Eunji Lee
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
| | - In-Hyeok Park
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
| | - Jong Hwa Jung
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
| | - Mari Ikeda
- Education
Center, Faculty of Engineering, Chiba Institute of Technology, 2-1-1
Shibazono, Narashino, Chiba 275-0023, Japan
| | - Yoichi Habata
- Department
of Chemistry, Faculty of Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 261-0013, Japan
| | - Shim Sung Lee
- Department
of Chemistry and Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, S. Korea
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12
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Li F, Wang Y, Meng F, Dai C, Cheng Y, Zhu C. Central-to-Axial Chirality Transfer-Induced CD Sensor for Chiral Recognition and ee
Value Detection of 1,2-DACH Enantiomers. MACROMOL CHEM PHYS 2015. [DOI: 10.1002/macp.201500236] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Fei Li
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yuxiang Wang
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Fandian Meng
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Chunhui Dai
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Yixiang Cheng
- Key Lab of Mesoscopic Chemistry of MOE and Collaborative Innovation Center of Chemistry for Life Sciences; School of Chemistry and Chemical Engineering; Nanjing University; Nanjing 210093 China
| | - Chengjian Zhu
- State Key Laboratory of Coordination Chemistry; School of Chemistry and Chemical Engineering; Nanjing University; No. 22, Hankou Road Nanjing 210093 China
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13
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Jeon HG, Kim MJ, Jeong KS. An indolocarbazole dimer as a new stereodynamic probe for chiral 1,2-diamines. Org Biomol Chem 2014; 12:5464-8. [DOI: 10.1039/c4ob00872c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An indolocarbazole dimer functions as a new stereodynamic probe determining the absolute configurations of chiral 1,2-diamines.
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Affiliation(s)
- Hae-Geun Jeon
- Department of Chemistry
- Yonsei University
- Seoul 120-749, Korea
| | - Min Jun Kim
- Department of Chemistry
- Yonsei University
- Seoul 120-749, Korea
| | - Kyu-Sung Jeong
- Department of Chemistry
- Yonsei University
- Seoul 120-749, Korea
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14
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Tokunaga Y, Hayakawa K, Miyashita J, Kawasaki T, Miyagawa S. Formation of pseudo[3]rotaxanes containing calix-bis-crowns and secondary ammonium ions and their thermodynamic stabilities in a solution: preorganization by second macrocycle and nonallosteric behavior exhibited by large crown cavities. Tetrahedron Lett 2013. [DOI: 10.1016/j.tetlet.2013.10.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Kuwahara S, Nakamura M, Yamaguchi A, Ikeda M, Habata Y. Combination of a New Chiroptical Probe and Theoretical Calculations for Chirality Detection of Primary Amines. Org Lett 2013; 15:5738-41. [DOI: 10.1021/ol402767a] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Shunsuke Kuwahara
- Department of Chemistry, Faculty of Science and Research Center for Materials with Integrated Properties, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan
| | - Masaya Nakamura
- Department of Chemistry, Faculty of Science and Research Center for Materials with Integrated Properties, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan
| | - Akira Yamaguchi
- Department of Chemistry, Faculty of Science and Research Center for Materials with Integrated Properties, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan
| | - Mari Ikeda
- Department of Chemistry, Faculty of Science and Research Center for Materials with Integrated Properties, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan
| | - Yoichi Habata
- Department of Chemistry, Faculty of Science and Research Center for Materials with Integrated Properties, Toho University, 2-2-1, Miyama, Funabashi, Chiba 274-8510, Japan
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16
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Kim MJ, Choi YR, Jeon HG, Kang P, Choi MG, Jeong KS. A helically twisted imine macrocycle that allows for determining the absolute configuration of α-amino carboxylates. Chem Commun (Camb) 2013; 49:11412-4. [DOI: 10.1039/c3cc46754f] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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