1
|
Khan N, Itaya K, Wirth T. Chiral Iodotriptycenes: Synthesis and Catalytic Applications. Chemistry 2022; 11:e202200145. [PMID: 35822927 PMCID: PMC9278095 DOI: 10.1002/open.202200145] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 06/27/2022] [Indexed: 02/05/2023]
Abstract
New iodotriptycenes, including some chiral derivatives, have been synthesised, and their catalytic potential towards oxidative transformations has been investigated. The enantioselectivities observed in the products using chiral iodotriptycene catalysts are low, probably owing to the large distances between the coordinating groups and the iodine moieties in these compounds.
Collapse
Affiliation(s)
- Nasim Khan
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, UK
| | - Katsunori Itaya
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, UK
| | - Thomas Wirth
- School of Chemistry, Cardiff University, Park Place, Main Building, CF10 3AT, Cardiff, UK
| |
Collapse
|
2
|
Yamaguchi K, Yokoi K, Umezawa M, Tsuchiya K, Yamada Y, Aoki S. Design, Synthesis, and Anticancer Activity of Triptycene-Peptide Hybrids that Induce Paraptotic Cell Death in Cancer Cells. Bioconjug Chem 2022; 33:691-717. [PMID: 35404581 DOI: 10.1021/acs.bioconjchem.2c00076] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We report on the design and synthesis of triptycene-peptide hybrids (TPHs), 5, syn-6, and anti-6, which are conjugates of a triptycene core unit with two or three cationic KKKGG peptides (K: lysine and G: glycine) through a C8 alkyl chain. It was discovered that syn-6 and anti-6 induce paraptosis, a type of programmed cell death (PCD), in Jurkat cells (leukemia T-lymphocytes). Mechanistic studies indicate that these TPHs induce the transfer of Ca2+ from the endoplasmic reticulum (ER) to mitochondria, a loss of mitochondrial membrane potential (ΔΨm), tethering of the ER and mitochondria, and cytoplasmic vacuolization in the paraptosis processes.
Collapse
Affiliation(s)
- Kohei Yamaguchi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Japan
| | - Kenta Yokoi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Japan
| | - Masakazu Umezawa
- Faculty of Advanced Engineering, Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Japan
| | - Koji Tsuchiya
- Research Institute for Science and Technology (RIST), Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Chiba, Japan
| | - Yasuyuki Yamada
- Department of Chemistry, Graduate School of Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.,Research Center of Material Science, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan.,JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 332-0012, Japan
| | - Shin Aoki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Japan.,Research Institute for Science and Technology (RIST), Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Chiba, Japan.,Research Institute for Biomedical Science (RIBS), Tokyo University of Science, 2641 Yamazaki, Noda 278-8510, Chiba, Japan
| |
Collapse
|
3
|
Iwata T, Kawano R, Fukami T, Shindo M. Retro‐Friedel‐Crafts‐Type Acidic Ring‐Opening of Triptycenes: A New Synthetic Approach to Acenes. Chemistry 2022; 28:e202104160. [DOI: 10.1002/chem.202104160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Indexed: 11/06/2022]
Affiliation(s)
- Takayuki Iwata
- Institute for Materials Chemistry and Engineering Kyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| | - Ryusei Kawano
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| | - Takuto Fukami
- Interdisciplinary Graduate School of Engineering Sciences Kyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering Kyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| |
Collapse
|
4
|
Kato M, Fukui T, Sato H, Shoji Y, Fukushima T. Capturing the Trajectory of Metal-Ion-Cluster Formation: Stepwise Accumulation of Zn(II) Ions in a Robust Coordination Space Formed by a Rigid Tridentate Carboxylate Ligand. Inorg Chem 2022; 61:3649-3654. [PMID: 35148475 DOI: 10.1021/acs.inorgchem.1c03758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Organic ligand-directed synthesis of metal-ion clusters with a well-defined number and arrangement of metal ions is an important subject toward the development of functional inorganic-organic nanohybrids. Here we report the synthesis of multinuclear Zn-oxo clusters using a triptycene-based rigid ligand (H3L) featuring three metal-coordination sites arranged in a triangular shape. Upon complexation of H3L with zinc acetate dihydrate, a decanuclear Zn-oxo cluster and multinuclear Zn-oxo clusters with a smaller number of Zn(II) ions were formed as the final product and its intermediates, respectively. A comparison of the X-ray structure of the final product with those of the intermediates revealed the cluster-formation process, where four triptycene ligands preorganize to form a robust coordination space to which Zn(II) ions accumulate in a stepwise manner. This stepwise metal-ion accumulation, along with the formation of a large tetrahedral decanuclear Zn-oxo cluster, highlights the potential of ligand design using 1,8,13-substituted triptycenes for the development of various metal-ion clusters.
Collapse
Affiliation(s)
- Mikiya Kato
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.,Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Tomoya Fukui
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.,Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Hiroyasu Sato
- Application Laboratory, Rigaku Corporation, 3-9-12 Matsubara-cho, Akishima-shi, Tokyo 196-8666, Japan
| | - Yoshiaki Shoji
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.,Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan.,Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503, Japan
| |
Collapse
|
5
|
Woźny M, Mames A, Ratajczyk T. Triptycene Derivatives: From Their Synthesis to Their Unique Properties. Molecules 2021; 27:250. [PMID: 35011478 PMCID: PMC8746337 DOI: 10.3390/molecules27010250] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2021] [Revised: 12/27/2021] [Accepted: 12/28/2021] [Indexed: 11/17/2022] Open
Abstract
Since the first preparation of triptycene, great progress has been made with respect to its synthesis and the understanding of its properties. Interest in triptycene-based systems is intense; in recent years, advances in the synthetic methodology and properties of new triptycenes have been reported by researchers from various fields of science. Here, an account of these new developments is given and placed in reference to earlier pivotal works that underpin the field. First, we discuss new approaches to the synthesis of new triptycenes. Progress in the regioselective synthesis of sterically demanding systems is discussed. The application of triptycenes in catalysis is also presented. Next, progress in the understanding of the relations between triptycene structures and their properties is discussed. The unique properties of triptycenes in the liquid and solid states are elaborated. Unique interactions, which involve triptycene molecular scaffolds, are presented. Molecular interactions within a triptycene unit, as well as between triptycenes or triptycenes and other molecules, are also evaluated. In particular, the summary of the synthesis and useful features will be helpful to researchers who are using triptycenes as building blocks in the chemical and materials sciences.
Collapse
Affiliation(s)
- Mateusz Woźny
- Institute of Organic Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Adam Mames
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| | - Tomasz Ratajczyk
- Institute of Physical Chemistry, Polish Academy of Sciences, Kasprzaka 44/52, 01-224 Warsaw, Poland
| |
Collapse
|
6
|
Iwata T, Kumagai S, Yoshinaga T, Hanada M, Shiota Y, Yoshizawa K, Shindo M. Quadruple Role of Pd Catalyst in Domino Reaction Involving Aryl to Alkyl 1,5-Pd Migration to Access 1,9-Bridged Triptycenes. Chemistry 2021; 27:11548-11553. [PMID: 34125459 DOI: 10.1002/chem.202101728] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2021] [Indexed: 12/21/2022]
Abstract
A Pd-catalyzed domino reaction of 1,8,13-tribromo-9-methoxytriptycenes is reported. Under conventional Suzuki coupling conditions, the triptycenes underwent multiple transformations to give 1,9-bridged triptycenes. Based on mechanistic investigations, a single Pd catalyst functions as Pd0 , PdII and PdIV species to catalyze four distinct processes: (1) aryl to alkyl 1,5-Pd migration, (2) intramolecular arylation, (3) homocoupling of phenylboronic acid and (4) Suzuki coupling. DFT calculations revealed that 1,5-Pd migration likely proceeds via both concerted PdII and stepwise PdIV routes. Asymmetric synthesis of the chiral triptycenes, as well as optical resolution, and further transformation are also reported.
Collapse
Affiliation(s)
- Takayuki Iwata
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Satoru Kumagai
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Tatsuro Yoshinaga
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Masato Hanada
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-koen, Kasuga, 816-8580, Japan
| |
Collapse
|
7
|
Affiliation(s)
- Yoshiaki Shoji
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8502, Japan
| | - Shion Yamamoto
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8502, Japan
| | - Takanori Fukushima
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8503, Japan
- Department of Chemical Science and Engineering, School of Materials and Chemical Technology, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8502, Japan
| |
Collapse
|
8
|
Khan MN, Wirth T. Chiral Triptycenes: Concepts, Progress and Prospects. Chemistry 2021; 27:7059-7068. [PMID: 33433031 PMCID: PMC8248085 DOI: 10.1002/chem.202005317] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 12/27/2020] [Indexed: 02/02/2023]
Abstract
Triptycenes have been established as unique scaffolds because of their backbone π-structure with a propeller-like shape and saddle-like cavities. They are some of the key organic molecules that have been extensively studied in polymer chemistry, in supramolecular chemistry and in material science. Triptycenes become chiral molecules when substituents are unsymmetrically attached in at least two of their different aromatic rings. This Minireview highlights the chirality of triptycenes from basics to an advanced stage for the development of functional molecules.
Collapse
Affiliation(s)
- Md. Nasim Khan
- School of ChemistryCardiff UniversityPark Place, Main BuildingCardiffCF10 3ATUK
| | - Thomas Wirth
- School of ChemistryCardiff UniversityPark Place, Main BuildingCardiffCF10 3ATUK
| |
Collapse
|
9
|
Gama M, Antognini Silva X, Doan T, Osi A, Chardon A, Tumanov N, Wouters J, Berionni G. Triptycene Boronates, Boranes, and Boron Ate‐Complexes: Toward Sterically Hindered Triarylboranes and Trifluoroborates. European J Org Chem 2021. [DOI: 10.1002/ejoc.202001672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Mathieu Gama
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Xavier Antognini Silva
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Thu‐Hong Doan
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Arnaud Osi
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Aurélien Chardon
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Nikolay Tumanov
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Johan Wouters
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| | - Guillaume Berionni
- Department of Chemistry Namur Institute of Structured Matter University of Namur 61, rue de Bruxelles 5000 Namur Belgium
| |
Collapse
|
10
|
Affiliation(s)
- Takayuki Iwata
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga, Fukuoka 816-8580, Japan
| |
Collapse
|
11
|
Iwata T, Hyodo M, Fukami T, Shiota Y, Yoshizawa K, Shindo M. Anthranoxides as Highly Reactive Arynophiles for the Synthesis of Triptycenes. Chemistry 2020; 26:8506-8510. [PMID: 32432370 DOI: 10.1002/chem.202002065] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/19/2020] [Indexed: 12/14/2022]
Abstract
We report herein an efficient method to synthesize triptycenes by the reaction of benzynes and anthranoxides, which are electron-rich and readily prepared from the corresponding anthrones. Using this method, 1,9-syn-substituted triptycenes were regioselectively obtained employing 3-methoxybenzynes. This method was also applied to synthesize pentiptycenes. A DFT study revealed that the cycloaddition of lithium anthranoxide and benzyne proceeds stepwise.
Collapse
Affiliation(s)
- Takayuki Iwata
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga, 816-8580, Japan
| | - Mizuki Hyodo
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-koen, Kasuga, 816-8580, Japan
| | - Takuto Fukami
- Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-koen, Kasuga, 816-8580, Japan
| | - Yoshihito Shiota
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga, 816-8580, Japan
| | - Kazunari Yoshizawa
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga, 816-8580, Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and Engineering, Kyushu University, Kasuga-koen, Kasuga, 816-8580, Japan
| |
Collapse
|
12
|
Preda G, Nitti A, Pasini D. Chiral Triptycenes in Supramolecular and Materials Chemistry. ChemistryOpen 2020; 9:719-727. [PMID: 32547902 PMCID: PMC7290281 DOI: 10.1002/open.202000077] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2020] [Revised: 05/19/2020] [Indexed: 12/12/2022] Open
Abstract
Triptycenes are an intriguing class of organic molecules with several unusual characteristics, such as a propeller-like shape, saddle-like cavities around a symmetrical scaffold, a rigid π-framework. They have been extensively studied and proposed as key synthons for a variety of applications in supramolecular chemistry and materials science. When decorated with an appropriate substitution pattern, triptycenes can be chiral, and, similarly to other popular chiral π-extended synthons, can express chirality robustly, efficiently, and with relevance to chiroptical spectroscopies. This minireview highlights and encompasses recent advances in the synthesis of chiral triptycenes and in their introduction as molecular scaffolds for the assembly of functional supramolecular materials.
Collapse
Affiliation(s)
- Giovanni Preda
- Department of Chemistry and INSTM Research UnitUniversity of Pavia – ItalyVia Taramelli 1227100PaviaItaly
| | - Andrea Nitti
- Department of Chemistry and INSTM Research UnitUniversity of Pavia – ItalyVia Taramelli 1227100PaviaItaly
| | - Dario Pasini
- Department of Chemistry and INSTM Research UnitUniversity of Pavia – ItalyVia Taramelli 1227100PaviaItaly
| |
Collapse
|
13
|
Chiu C, Yang J. Photoluminescent and Photoresponsive Iptycene‐Incorporated π‐Conjugated Systems: Fundamentals and Applications. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.201900300] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Chun‐Wei Chiu
- Department of ChemistryNational Taiwan University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| | - Jye‐Shane Yang
- Department of ChemistryNational Taiwan University No 1, Sec 4, Roosevelt Rd Taipei 10617 Taiwan
| |
Collapse
|
14
|
Aida Y, Shibata Y, Tanaka K. Enantioselective Synthesis of Distorted π‐Extended Chiral Triptycenes Consisting of Three Distinct Aromatic Rings by Rhodium‐Catalyzed [2+2+2] Cycloaddition. Chemistry 2020; 26:3004-3009. [DOI: 10.1002/chem.201905519] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Indexed: 12/19/2022]
Affiliation(s)
- Yukimasa Aida
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Yu Shibata
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| | - Ken Tanaka
- Department of Chemical Science and EngineeringTokyo Institute of Technology O-okayama, Meguro-ku Tokyo 152-8550 Japan
| |
Collapse
|
15
|
Yoshinaga T, Fujiwara T, Iwata T, Shindo M. Synthesis of Distorted 1,8,13‐Trisilyl‐9‐hydroxytriptycenes by Triple Cycloaddition of Ynolates to 3‐Silylbenzynes. Chemistry 2019; 25:13855-13859. [DOI: 10.1002/chem.201903024] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 07/22/2019] [Indexed: 12/11/2022]
Affiliation(s)
- Tatsuro Yoshinaga
- Interdisciplinary Graduate School of Engineering SciencesKyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| | - Takumi Fujiwara
- Interdisciplinary Graduate School of Engineering SciencesKyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| | - Takayuki Iwata
- Institute for Materials Chemistry and EngineeringKyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| | - Mitsuru Shindo
- Institute for Materials Chemistry and EngineeringKyushu University 6-1 Kasuga-koen Kasuga 816-8580 Japan
| |
Collapse
|
16
|
Ikai T, Yoshida T, Shinohara KI, Taniguchi T, Wada Y, Swager TM. Triptycene-Based Ladder Polymers with One-Handed Helical Geometry. J Am Chem Soc 2019; 141:4696-4703. [DOI: 10.1021/jacs.8b13865] [Citation(s) in RCA: 54] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
- Department of Chemistry, Massachusetts Institute of Technology (MIT), 77 Massachusetts Ave, Cambridge, Massachusetts 02139, United States
| | - Takumu Yoshida
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Ken-ichi Shinohara
- School of Materials Science, Japan Advanced Institute of Science and Technology (JAIST), 1-1 Asahi-dai, Nomi 923-1292, Japan
| | - Tsuyoshi Taniguchi
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yuya Wada
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology (MIT), 77 Massachusetts Ave, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
17
|
Wada Y, Shinohara KI, Ikai T. Optically active triptycenes containing hexa-peri-hexabenzocoronene units. Chem Commun (Camb) 2019; 55:11386-11389. [DOI: 10.1039/c9cc06025a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We have successfully generated both left- and right-handed circularly polarized light using crystals prepared from a racemic triptycene containing hexa-peri-hexabenzocoronene units.
Collapse
Affiliation(s)
- Yuya Wada
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Ken-ichi Shinohara
- School of Materials Science
- Japan Advanced Institute of Science and Technology (JAIST)
- Nomi 923-1292
- Japan
| | - Tomoyuki Ikai
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
- Department of Molecular and Macromolecular Chemistry
| |
Collapse
|
18
|
Henyecz R, Keglevich G. New Developments on the Hirao Reactions, Especially from "Green" Point of View. Curr Org Synth 2019; 16:523-545. [PMID: 31984929 PMCID: PMC7432197 DOI: 10.2174/1570179416666190415110834] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/19/2019] [Accepted: 03/12/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND The Hirao reaction discovered ca. 35 years ago is an important P-C coupling protocol between dialkyl phosphites and aryl halides in the presence of Pd(PPh3)4 as the catalyst and a base to provide aryl phosphonates. Then, the reaction was extended to other Preagents, such as secondary phosphine oxides and H-phosphinates and to other aryl and hetaryl derivatives to afford also phosphinic esters and tertiary phosphine oxides. Instead of the Pd(PPh3)4 catalyst, Pd(OAc)2 and Ni-salts were also applied as catalyst precursors together with a number of mono- and bidentate P-ligands. OBJECTIVE In our review, we undertook to summarize the target reaction with a special stress on the developments attained in the last 6 years, hence this paper is an update of our earlier reviews in a similar topic. CONCLUSIONS "Greener" syntheses aimed at utilizing phase transfer catalytic and microwave-assisted approaches, even under "P-ligand-free. or even solvent-free conditions are the up-to date versions of the classical Hirao reaction. The mechanism of the reaction is also in the focus these days.
Collapse
Affiliation(s)
- Réka Henyecz
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521Budapest, Hungary
| | - György Keglevich
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, 1521Budapest, Hungary
| |
Collapse
|
19
|
Affiliation(s)
- Maciej Zaranek
- Faculty of Chemistry and the Center for Advanced Technology, Adam Mickiewicz University in Poznań, Umultowska 89 B/C, 61-614 Poznań, Poland
| | - Piotr Pawluc
- Faculty of Chemistry and the Center for Advanced Technology, Adam Mickiewicz University in Poznań, Umultowska 89 B/C, 61-614 Poznań, Poland
| |
Collapse
|
20
|
Yoneda T. Reductive Dechlorination of 4-Chlorophenol in a Water-based Solvent Using Pd/SiO2 Catalysts Functionalized with Self-assembling Organophosphonic Acids. CHEM LETT 2018. [DOI: 10.1246/cl.180401] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Tetsuya Yoneda
- Department of Liberal Arts and Science, College of Science and Technology, Nihon University, 7-24-1 Narashinodai, Funabashi, Chiba 274-8501, Japan
| |
Collapse
|
21
|
Ikai T, Yoshida T, Awata S, Wada Y, Maeda K, Mizuno M, Swager TM. Circularly Polarized Luminescent Triptycene-Based Polymers. ACS Macro Lett 2018; 7:364-369. [PMID: 35632913 DOI: 10.1021/acsmacrolett.8b00106] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
A series of chiral fluorescent polymers containing optically active triptycene units in the main chain were synthesized via Sonogashira-Hagihara coupling copolymerizations of (R,R)- or (S,S)-2,6-diethynyltriptycene with a range of diiodoaryls. Their optical and chiroptical properties were investigated under various solution conditions. We observe that these polymers emitted circularly polarized light owing to the chiral triptycene framework with a handed twisted rigid structure, and the fluorescence colors could be tuned in the whole visible range from blue to red by replacing the achiral comonomer units. They possessed luminescence dissymmetry factors of approximately 1.0 × 10-3, regardless of the incorporated comonomer units.
Collapse
Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Takumu Yoshida
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Seiya Awata
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Yuya Wada
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan
| | - Timothy M. Swager
- Department of Chemistry, Massachusetts Institute of Technology (MIT), 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
22
|
Kisets I, Gelman D. Carbometalated Complexes Possessing Tripodal Pseudo-C3-Symmetric Triptycene-Based Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00907] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ilya Kisets
- Institute of Chemistry, Edmond
J. Safra Campus, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Dmitri Gelman
- Institute of Chemistry, Edmond
J. Safra Campus, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| |
Collapse
|
23
|
Ikai T, Nagata N, Awata S, Wada Y, Maeda K, Mizuno M, Swager TM. Optically active distorted cyclic triptycenes: chiral stationary phases for HPLC. RSC Adv 2018; 8:20483-20487. [PMID: 35542365 PMCID: PMC9080901 DOI: 10.1039/c8ra04434a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Accepted: 05/25/2018] [Indexed: 11/30/2022] Open
Abstract
A pair of optically active triptycene derivatives ((R,R)- and (S,S)-8) with a distorted cyclic structure were synthesized via an intramolecular etherification and evaluated as a novel chiral selector for high-performance liquid chromatography. The (R,R)- and (S,S)-8-based chiral stationary phases (CSPs) were found to be particularly effective in the resolution of axially chiral biaryl compounds. The importance of the distorted cyclic structure present in 8 for chiral recognition was demonstrated by comparisons with the corresponding non-cyclic model compound ((R,R)-9), which did not display enantioselectivity in the separation of the test racemates. We have succeeded in developing triptycene-based chiral stationary phases with a distorted cyclic structure, which can resolve a series of axially chiral compounds.![]()
Collapse
Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Naoya Nagata
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Seiya Awata
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Yuya Wada
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Timothy M. Swager
- Department of Chemistry
- Massachusetts Institute of Technology (MIT)
- Cambridge
- USA
| |
Collapse
|
24
|
Ikai T, Wada Y, Awata S, Yun C, Maeda K, Mizuno M, Swager TM. Chiral triptycene-pyrene π-conjugated chromophores with circularly polarized luminescence. Org Biomol Chem 2017; 15:8440-8447. [DOI: 10.1039/c7ob02046e] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Novel chiral triptycenes showing circularly polarized luminescence based on the supramolecular chirality induced in the hydrogen-bonded aggregate have been developed.
Collapse
Affiliation(s)
- Tomoyuki Ikai
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Yuya Wada
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Seiya Awata
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Changsik Yun
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Katsuhiro Maeda
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Motohiro Mizuno
- Graduate School of Natural Science and Technology
- Kanazawa University
- Kanazawa 920-1192
- Japan
| | - Timothy M. Swager
- Department of Chemistry
- Massachusetts Institute of Technology (MIT)
- Cambridge
- USA
| |
Collapse
|