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Taniguchi T, Mutmainah, Takimoto S, Suzuki T, Watanabe S, Matsuda F, Umezawa T, Monde K. Scope and limitations of absolute configuration determination of allenic natural products using the CCC stretching VCD signal. Org Biomol Chem 2023; 21:569-574. [PMID: 36541676 DOI: 10.1039/d2ob01520j] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The allene functional group in natural products isolated so far exists in a non-racemic form, but its axial chirality is difficult to elucidate. Allenes exhibit a characteristic antisymmetric CCC stretching mode at around 1950 cm-1, and their VCD properties have not been studied in detail. This work, for the first time, applied VCD spectroscopy to allenic natural products and allenic molecules with other asymmetric centers focusing on the antisymmetric CCC stretching mode. This vibrational mode yielded a negligibly weak VCD signal for several molecules, but in the presence of electron-withdrawing and/or conjugating substituents, it generated a stronger one. Its sign was found to be influenced by the nature of substituents. These findings should deepen the understanding of the VCD properties of the allene functional group and should be useful for future studies of chiral allenes.
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Affiliation(s)
- Tohru Taniguchi
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, North 21 West 11, Sapporo 001-0021, Japan.
| | - Mutmainah
- Graduate School of Life Science, Hokkaido University, North 21 West 11, Sapporo 001-0021, Japan
| | - Shu Takimoto
- Graduate School of Life Science, Hokkaido University, North 21 West 11, Sapporo 001-0021, Japan
| | - Takahiro Suzuki
- Department of Chemistry, Faculty of Science, Hokkaido University, North 10 West 8, Sapporo 060-0810, Japan
| | - Soichiro Watanabe
- Graduate School of Chemical Sciences and Engineering, Hokkaido University, North 13 West 8, Sapporo 060-8628, Japan
| | - Fuyuhiko Matsuda
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan
| | - Taiki Umezawa
- Division of Environmental Materials Science, Graduate School of Environmental Science, Hokkaido University, North 10 West 5, Sapporo 060-0810, Japan
| | - Kenji Monde
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, North 21 West 11, Sapporo 001-0021, Japan.
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Ozcelik A, Pereira-Cameselle R, Alonso-Gómez JL. From Allenes to Spirobifluorenes: On the Way to Device-compatible Chiroptical Systems. CURR ORG CHEM 2020. [DOI: 10.2174/1385272824999201013164534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The last decade has seen a huge growth in the construction of chiral systems to
expand the scope of chiroptical applications. Dependence of chiroptical response on molecular
conformation typically leads to low chiroptical intensities of chiral systems that feature
several conformations in solution. In this respect, allenes were employed for the preparation
of open and cyclic oligomers as well as molecular cages, presenting remarkable chiroptical
responses in solution. Their molecular chirality was also transferred to metal surfaces, yet
photoisomerization of allenes limited their further exploration. In search of a more robust
chiral axis, theoretical and experimental studies confirmed that spirobifluorenes could give
rise to stable systems with tailored optical and chiroptical properties. Additionally, incorporating
a conformational lock into spirobifluorene cyclic architectures served as an efficient
strategy towards the generation of distinct helical molecular orbitals. This review article outlines our results on developing
device-compatible chiroptical systems through axially chiral allenes and spirobifluorenes. The contribution
from other research groups is presented briefly.
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Affiliation(s)
- Ani Ozcelik
- Department of Organic Chemistry, Faculty of Chemistry, University of Vigo, Vigo, Spain
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Castro-Fernández S, Álvarez-García J, García-Río L, Silva-López C, Cid MM. Double Protonation of a cis-Bipyridoallenophane Detected via Chiral-Sensing Switch: The Role of Ion Pairs. Org Lett 2019; 21:5898-5902. [DOI: 10.1021/acs.orglett.9b02024] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Silvia Castro-Fernández
- Departamento de Química Orgánica, Edificio Ciencias Experimentais, Campus Lagoas-Marcosende, Vigo E-36310, Spain
| | - Jonathan Álvarez-García
- Departamento de Química Orgánica, Edificio Ciencias Experimentais, Campus Lagoas-Marcosende, Vigo E-36310, Spain
| | - Luís García-Río
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS), Departamento de Química Física, Universidade de Santiago de Compostela, 15782 Santiago de Compostela, Spain
| | - Carlos Silva-López
- Departamento de Química Orgánica, Edificio Ciencias Experimentais, Campus Lagoas-Marcosende, Vigo E-36310, Spain
| | - María Magdalena Cid
- Departamento de Química Orgánica, Edificio Ciencias Experimentais, Campus Lagoas-Marcosende, Vigo E-36310, Spain
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Gropp C, Quigley BL, Diederich F. Molecular Recognition with Resorcin[4]arene Cavitands: Switching, Halogen-Bonded Capsules, and Enantioselective Complexation. J Am Chem Soc 2018; 140:2705-2717. [DOI: 10.1021/jacs.7b12894] [Citation(s) in RCA: 88] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Cornelius Gropp
- Laboratory of Organic Chemistry,
Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg
3, 8093 Zürich, Switzerland
| | - Brendan L. Quigley
- Laboratory of Organic Chemistry,
Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg
3, 8093 Zürich, Switzerland
| | - François Diederich
- Laboratory of Organic Chemistry,
Department of Chemistry and Applied Biosciences, ETH Zürich, Vladimir-Prelog-Weg
3, 8093 Zürich, Switzerland
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Gropp C, Trapp N, Diederich F. Alleno-Acetylenic Cage (AAC) Receptors: Chiroptical Switching and Enantioselective Complexation oftrans-1,2-Dimethylcyclohexane in a Diaxial Conformation. Angew Chem Int Ed Engl 2016; 55:14444-14449. [DOI: 10.1002/anie.201607681] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Indexed: 11/11/2022]
Affiliation(s)
- Cornelius Gropp
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3, CH- 8093 Zurich Switzerland
| | - Nils Trapp
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3, CH- 8093 Zurich Switzerland
| | - François Diederich
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3, CH- 8093 Zurich Switzerland
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Gropp C, Trapp N, Diederich F. Alleno-acetylenische Käfigrezeptoren (AAKs) - chiroptische Schaltung und enantioselektive Komplexierung vontrans-1,2-Dimethylcyclohexan in einer diaxialen Konformation. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607681] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Cornelius Gropp
- Laboratorium für Organische Chemie; ETH Zürich; Vladimir-Prelog-Weg 3, CH- 8093 Zürich Schweiz
| | - Nils Trapp
- Laboratorium für Organische Chemie; ETH Zürich; Vladimir-Prelog-Weg 3, CH- 8093 Zürich Schweiz
| | - François Diederich
- Laboratorium für Organische Chemie; ETH Zürich; Vladimir-Prelog-Weg 3, CH- 8093 Zürich Schweiz
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Gidron O, Jirásek M, Wörle M, Diederich F. Enantiopure Alleno-Acetylenic Helicages Containing Multiple Binding Sites. Chemistry 2016; 22:16172-16177. [DOI: 10.1002/chem.201603923] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2016] [Indexed: 01/01/2023]
Affiliation(s)
- Ori Gidron
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
- The Institute of Chemistry; The Hebrew University of Jerusalem; Edmond J. Safra, Givat Ram Jerusalem 91904 Israel
| | - Michael Jirásek
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
| | - Michael Wörle
- Laboratorium für Anorganische Chemie; ETH Zurich; Vladimir-Prelog-Weg 1 8093 Zurich Switzerland
| | - François Diederich
- Laboratorium für Organische Chemie; ETH Zurich; Vladimir-Prelog-Weg 3 8093 Zurich Switzerland
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Gidron O, Jirásek M, Trapp N, Ebert MO, Zhang X, Diederich F. Homochiral [2]Catenane and Bis[2]catenane from Alleno-Acetylenic Helicates - A Highly Selective Narcissistic Self-Sorting Process. J Am Chem Soc 2015; 137:12502-5. [PMID: 26380872 DOI: 10.1021/jacs.5b08649] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Homochiral strands of alternating alleno-acetylenes and phenanthroline ligands (P)-1 and (P2)-2, as well as their corresponding enantiomers, selectively assemble with the addition of silver(I) salt to yield dinuclear and trinuclear double helicates, respectively. Upon increasing the solvent polarity, the dinuclear and trinuclear helicates interlock to form a [2]catenane and bis[2]catenane, bearing 14 chirality elements, respectively. The solid-state structure of the [2]catenane reveals a nearly perfect fit of the interlocked strands, and the ECD spectra show a significant amplification of the chiroptical properties upon catenation, indicating stabilization of the helical secondary structure. Highly selective narcissistic self-sorting was demonstrated for a racemic mixture consisting of both short and long alleno-acetylenic strands, highlighting their potential for the preparation of linear catenanes of higher order.
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Affiliation(s)
- Ori Gidron
- Laboratory of Organic Chemistry, ETH Zurich , Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Michael Jirásek
- Laboratory of Organic Chemistry, ETH Zurich , Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Nils Trapp
- Laboratory of Organic Chemistry, ETH Zurich , Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Marc-Olivier Ebert
- Laboratory of Organic Chemistry, ETH Zurich , Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - Xiangyang Zhang
- Laboratory of Organic Chemistry, ETH Zurich , Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
| | - François Diederich
- Laboratory of Organic Chemistry, ETH Zurich , Vladimir-Prelog-Weg 3, CH-8093 Zurich, Switzerland
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Padula D, Lahoz IR, Díaz C, Hernández FE, Di Bari L, Rizzo A, Santoro F, Cid MM. A Combined Experimental-Computational Investigation to Uncover the Puzzling (Chiro-)optical Response of Pyridocyclophanes: One- and Two-Photon Spectra. Chemistry 2015; 21:12136-47. [DOI: 10.1002/chem.201500557] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2015] [Revised: 05/26/2015] [Indexed: 11/09/2022]
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Gidron O, Ebert MO, Trapp N, Diederich F. Chiroptical Detection of Nonchromophoric, Achiral Guests by Enantiopure Alleno-Acetylenic Helicages. Angew Chem Int Ed Engl 2014; 53:13614-8. [DOI: 10.1002/anie.201406585] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2014] [Revised: 09/24/2014] [Indexed: 11/12/2022]
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Gidron O, Ebert MO, Trapp N, Diederich F. Chiroptische Detektion achiraler Gäste ohne Chromophor durch enantiomerenreine alleno-acetylenische helicale Käfige. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201406585] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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