| 公表論文 Publications |
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9) Direct evidence for a carbon–carbon one-electron σ-bond.
T. Shimajiri, S. Kawaguchi, T. Suzuki, Y. Ishigaki
Nature 2024, 634, 347-351.
[DOI: 10.1038/s41586-024-07965-1]
8) Optical Property Control by the Interligand Charge Transfer Excited State in Brominated Homoleptic and Heteroleptic Aluminum Dinuclear Triple-Stranded Helicates.
Y. Konishi, T. Ehara, L. Cui, K. Ueno, Y. Ishigaki, T. Harada, T. Konta, K. Onda, Y. Hoshino, K. Miyata, T. Ono
Inorg. Chem. 2024, 63, 11716-11725.
[DOI: 10.1021/acs.inorgchem.4c01214]
7) Structural-Change-Induced Two-Stage Redox Behavior of Pentacenebisquinodimethane with Tricolor Chromism.
Y. Ishigaki, S. Mizuno, T. Harimoto, T. Shimajiri, T. Suzuki
Chem. Asian J. 2024, 19, e202400316.
[DOI: 10.1002/asia.202400316]
6) Crystallographic and spectroscopic studies on persistent triarylpropargyl cations.
T. Shimajiri, T. Tsue, S. Koakutsu, Y. Ishigaki, T. Suzuki
Chem. Commun. 2024, 60, 7152-7155.
[DOI: 10.1039/D4CC01786B]
Preprint: ChemRxiv 2024 [DOI: 10.26434/chemrxiv-2024-3b2vc]
5) Cation-Stacking Approach Enabling Interconversion between Bis(xanthylium) and its Reduced Species.
M. Kikuchi, T. Tadokoro, T. Tachibana, S. Suzuki, T. Suzuki, Y. Ishigaki
Chem. Eur. J. 2024, 30, e202401683.
[DOI: 10.1002/chem.202401683]
Preprint: ChemRxiv 2024 [DOI: 10.26434/chemrxiv-2024-fd9ws]
4) Synthesis and Chiroptical Properties of Cyclic Anthraquinodimethane Dimer Using Au-Templated Method.
S. Sugiyama, K. Murotani, F. Ishiwari, A. Saeki, H. Kawai, T. Suzuki, Y. Tsuchido, Y. Ishigaki
Chem. Lett. 2024, 53, upae102.
[DOI: 10.1093/chemle/upae102 (open access)]
3) Thermal Equilibrium between Quinoid/Biradical Forms Enhancing Electrochemical Amphotericity.
Y. Ishigaki, S. Mizuno, K. Sugawara, T. Hashimoto, S. Suzuki, T. Suzuki
Chem. Eur. J. 2024, 30, e202400916.
[DOI: 10.1002/chem.202400916]
2) Influence of Structural Isomers of Naphthalene Diimides on Photophysical and Electrochemical Properties.
Y. Yamamoto, A. Horioka, L. Cui, Y. Ishigaki, Y. Hoshino, T. Ono
Chem. Lett. 2024, 53, upad022.
[DOI: 10.1093/chemle/upad022]
1) Domino-Redox Reaction Induced by An Electrochemically Triggered Conformational Change.
T. Harimoto, T. Tadokoro, S. Sugiyama, T. Suzuki, Y. Ishigaki
Angew. Chem. Int. Ed. 2024, 63, e202316753.
[DOI: 10.1002/anie.202316753]
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17) Smart Lipid Nanoparticle that Remodels Tumor Microenvironment for Activatable H2S Gas and Photodynamic Immunotherapy.
L. Wu, Y. Liu, W. Zeng, Y. Ishigaki, S. Zhou, X. Wang, Y. Sun, Y. Zhang, X. Jiang, T. Suzuki, D. Ye
J. Am. Chem. Soc. 2023, 145, 27838-27849.
[DOI: 10.1021/jacs.3c11328]
16) On-Surface Synthesis of Multiple Cu Atom-Bridged Organometallic Oligomers.
K. Sun, K. Sugawara, A. Lyalin, Y. Ishigaki, K. Uosaki, O. Custance, T. Taketsugu, T. Suzuki, S. Kawai
ACS Nano 2023, 17, 24355-24362.
[DOI: 10.1021/acsnano.3c10524]
15) Carbon-based Biradicals: Structural and Magnetic Switching.
Y. Ishigaki, T. Harimoto, T. Shimajiri, T. Suzuki
Chem. Rev. 2023, 123, 13952-13965.
[DOI: 10.1021/acs.chemrev.3c00376]
14) Synthesis and Functional Control of Near-infrared Electrochromic Molecules Based on Redox-active Para-quinodimethane Scaffolds.
T. Harimoto, Y. Ishigaki
J. Synth. Org. Chem. Jpn. 2023, 81, 963-977.
[DOI: 10.5059/yukigoseikyokaishi.81.963]
13) Vis-NIR-Electrochromic Interconversion of Dithienylmethylium-Type Cyanine Dyes with a σ-Bonded Dimer or Isolable Neutral Radical.
S.-G. Chong, S. Suzuki, T. Suzuki, Y. Ishigaki
Bull. Chem. Soc. Jpn. 2023, 96, 1144-1149.
[DOI: 10.1246/bcsj.20230169 (open access)]
12) Double Dynamic Structural Change Enabling Tricolor Chromism by the Realization of Apparent Two-Electron Transfer to Skip the Open-Shell State.
T. Harimoto, Y. Sugai, K. Sugawara, T. Suzuki, Y. Ishigaki
Chem. Eur. J. 2023, 29, e202301476.
[DOI: 10.1002/chem.202301476]
11) One-Pot Synthesis of Helical Azaheptalene and Chiroptical Switching of an Isolable Radical Cation.
Y. Nishimura, T. Harimoto, T. Suzuki, Y. Ishigaki
Chem. Eur. J. 2023, 29, e202301759.
[DOI: 10.1002/chem.202301759]
Preprint: ChemRxiv 2023 [DOI: 10.26434/chemrxiv-2023-sc6tf]
10) Chalcogen-Peierls Transition: Single-Crystal-to-Single-Crystal Transition from a Two-Dimensional to a One-Dimensional Network of Chalcogen Bonds at Low Temperature.
S. Kawaguchi,# T. Shimajiri,# T. Akutagawa, T. Fukushima, Y. Ishigaki, T. Suzuki
Bull. Chem. Soc. Jpn. 2023, 96, 631-635.
[DOI: 10.1246/bcsj.20230091 (open access)]
#These authors contributed equally.
9) Crystal Engineering, Electron Conduction, and Molecular Recognition and Reactivity by Chalcogen Bonds in Tetracyanoquinodimethanes Fused with [1,2,5]Chalcogenadiazoles.
T. Shimajiri, H.-P. Jacquot de Rouville, V. Heitz, T. Akutagawa, T. Fukushima, Y. Ishigaki, T. Suzuki
Synlett 2023, 34, 1978-1990.
[DOI: 10.1055/a-2072-2951]
8) Tripodal Triazatruxene Derivative as a Face-On Oriented Hole-Collecting Monolayer for Efficient and Stable Inverted Perovskite Solar Cells.
M. A. Truong, T. Funasaki, L. Ueberricke, W. Nojo, R. Murdey, T. Yamada, S. Hu, A. Akatsuka, N. Sekiguchi, S. Hira, L. Xie, T. Nakamura, N. Shioya, D. Kan, Y. Tsuji, S. Iikubo, H. Yoshida, Y. Shimakawa, T. Hasegawa, Y. Kanemitsu, T. Suzuki, A. Wakamiya
J. Am. Chem. Soc. 2023, 145, 7528-7539.
[DOI: 10.1021/jacs.3c00805]
7) Bis(triarylmethylium)-type Macrocyclic Dications: Mechanochromic Emission Extending to the Red Region.
Y. Ishigaki, T. Tachibana, K. Sugawara, M. Kikuchi, T. Suzuki
ChemPlusChem 2023, 88, e202300110.
[DOI: 10.1002/cplu.202300110]
• Highlighted in ChemistryViews
6) Exceptionally Flexible Quinodimethanes with Multiple Conformations: Polymorph-Dependent Colour Tone and Emission of Crystals.
K. Sugawara, T. Ono, Y. Yano, T. Suzuki, Y. Ishigaki
Mater. Chem. Front. 2023, 7, 1591-1598.
[DOI: 10.1039/D2QM01199A (open access)]
• Highlighted in Chem-Station Spotlight Research No. 522
5) Enhancement of NIR-Absorbing Ability of Bis(diarylmethylium)-Type Dicationic Dyes Based on an Ortho-Substitution Strategy.
T. Harimoto, T. Suzuki, Y. Ishigaki
Chem. Eur. J. 2023, 29, e202203899.
[DOI: 10.1002/chem.202203899]
4) Dibenzotropylium-Capped Orthogonal Geometry Enabling Isolation and Examination of a Series of Hydrocarbons with Multiple 14π-Aromatic Units.
Y. Hayashi, S. Suzuki, T. Suzuki, Y. Ishigaki
J. Am. Chem. Soc. 2023, 145, 2596-2608.
[DOI: 10.1021/jacs.2c12574 (open access)]
• Highlighted in Chem-Station Spotlight Research No. 501
• Highlighted in Nature Synthesis 2023, 2, 79.
3) Strain-Sensitive On-Surface Ladderization by Non-Dehydrogenative Heterocyclization.
Y. Ma, K. Sugawara, Y. Ishigaki, K. Sun, T. Suzuki, S. Kawai
Chem. Eur. J. 2023, 29, e202203622.
[DOI: 10.1002/chem.202203622]
2) Single-Molecule Observation of Redox Reactions Enabled by Rigid and Isolated Tripodal Molecules.
Y. Kobayashi, Y. Yokota, R. A. Wong, M. Hong, J. Takeya, S. Osawa, F. Ishiwari, Y. Shoji, T. Harimoto, K. Sugimoto, Y. Ishigaki, T. Suzuki, T. Fukushima, Y. Kim
J. Phys. Chem. C 2023, 127, 746-758.
[DOI: 10.1021/acs.jpcc.2c07362]
1) Ultralong Csp3–Csp3 Single Bonds Shortened and Stabilized by London Dispersion.
T. Shimajiri, Y. Kawakami, S. Kawaguchi, Y. Hayashi, K. Hada, T. Suzuki, Y. Ishigaki
Synlett 2023, 34, 1147-1152.
[DOI: 10.1055/a-1934-1346]
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9) Near-Infrared Electrochromic Behavior of Dibenzothiepin Derivatives Attached by Two Michler's Hydrol Blue Units.
Y. Ishigaki, M. Takata, T. Shimajiri, L. Wu, W. Zeng, D. Ye, T. Suzuki
Chem. Eur. J. 2022, 28, e202202457.
[DOI: 10.1002/chem.202202457]
8) Geometrical and Electronic Structure of Cation Radical Species of Tetraarylanthraquinodimethane: An Intermediate for Unique Electrochromic Behavior.
Y. Ishigaki, R. Fukagawa, K. Sugawara, T. Harimoto, T. Suzuki
Chem. Asian J. 2022, 17, e202200914.
[DOI: 10.1002/asia.202200914]
7) Multiple Molecular Interactions between Alkyl Groups and Dissociated Bromine Atoms on Ag(111).
S. Kawai, K. Sugawara, Y. Ma, K. Sun, O. Custance, Y. Ishigaki, T. Suzuki
Phys. Chem. Chem. Phys. 2022, 24, 22191-22197.
[DOI: 10.1039/D2CP03198A]
6) A Ratiometric Photoacoustic Probe with a Reversible Response to Hydrogen Sulfide and Hydroxyl Radicals for Dynamic Imaging of Liver Inflammation.
L. Wu, W. Zeng, Y. Ishigaki, J. Zhang, H. Bai, T. Harimoto, T. Suzuki, D. Ye
Angew. Chem. Int. Ed. 2022, 61, e202209248.
[DOI: 10.1002/anie.202209248]
5) Solid-State Assembly by Chelating Chalcogen Bonding in Quinodimethane Tetraesters Fused with a Chalcogenadiazole.
Y. Ishigaki, K. Asai, H.-P. Jacquot de Rouville, T. Shimajiri, J. Hu, V. Heitz, T. Suzuki
ChemPlusChem 2022, 87, e202200075.
[DOI: 10.1002/cplu.202200075]
4) Redox-Active Hydrocarbons: Isolation and Structural Determination of Cationic States toward Advanced Response Systems.
T. Harimoto, Y. Ishigaki
ChemPlusChem 2022, 87, e202200013.
[DOI: 10.1002/cplu.202200013]
3) Chalcogen Bond versus Halogen Bond: Changing Contributions in Determining the Crystal Packing of Dihalobenzochalcogenadiazoles.
Y. Ishigaki, K. Shimomura, K. Asai, T. Shimajiri, T. Akutagawa, T. Fukushima, T. Suzuki
Bull. Chem. Soc. Jpn. 2022, 95, 522-531.
[DOI: 10.1246/bcsj.20220008 (open access)]
2) Anthraquinodimethane Ring-flip in Sterically Congested Alkenes: Isolation of Isomer and Elucidation of Intermediate through Experimental and Theoretical Approach.
Y. Ishigaki, T. Tadokoro, Y. Harabuchi, Y. Hayashi, S. Maeda, T. Suzuki
Bull. Chem. Soc. Jpn. 2022, 95, 38-46.
[DOI: 10.1246/bcsj.20210355 (open access)]
1) An Activatable Afterglow/MRI Bimodal Nanoprobe with Fast Response to H2S for In Vivo Imaging of Acute Hepatitis.
W. Zeng, L. Wu, Y. Ishigaki, T. Harimoto, Y. Hu, Y. Sun, Y. Wang, T. Suzuki, H.-Y. Chen, D. Ye
Angew. Chem. Int. Ed. 2022, 61, e202111759.
[DOI: 10.1002/anie.202111759]
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13) Generation of hydroxyl radical-activatable ratiometric near-infrared bimodal probes for early monitoring of tumor response to therapy.
L. Wu,# Y. Ishigaki,# W. Zeng,# T. Harimoto, B. Yin, Y. Chen, S. Liao, Y. Liu, Y. Sun, X. Zhang, Y. Liu, Y. Liang, P. Sun, T. Suzuki, G. Song, Q. Fan, D. Ye
Nat. Commun. 2021, 12, 6145.
[DOI: 10.1038/s41467-021-26380-y (open access)]
#These authors contributed equally.
12) A Hydrogen-Bonded Organic Framework Based on Pyrazinopyrazine.
Q. Ji, K. Takahashi, S. Noro, Y. Ishigaki, K. Kokado, T. Nakamura, I. Hisaki
Cryst. Growth Des. 2021, 21, 4656-4664.
[DOI: 10.1021/acs.cgd.1c00506]
11) Redox-active tetraaryldibenzoquinodimethanes.
Y. Ishigaki, K. Sugawara, T. Tadokoro, Y. Hayashi, T. Harimoto, T. Suzuki
Chem. Commun. 2021, 57, 7201-7214.
[DOI: 10.1039/D1CC02260A]
10) Redox-active and Highly Strained Hydrocarbons: Control of HOMO Levels Based on Flexibility of Covalent Bonds.
Y. Ishigaki
J. Synth. Org. Chem. Jpn. 2021, 79, 290-299.
[DOI: 10.5059/yukigoseikyokaishi.79.290]
9) [1,2,5]Chalcogenadiazole-fused Dicyanonaphthoquinodiimines: Larger Contribution from Chalcogen Bond than Weak Hydrogen Bond in Determining Crystal Structures.
Y. Ishigaki, K. Asai, T. Shimajiri, T. Suzuki
Chem. Lett. 2021, 50, 1184-1187.
[DOI: 10.1246/cl.210095]
8) Chalcogen Bond versus Weak Hydrogen Bond: Changing Contributions in Determining the Crystal Packing of [1,2,5]Chalcogenadiazole-Fused Tetracyanonaphthoquinodimethanes.
Y. Ishigaki, K. Asai, T. Shimajiri, T. Akutagawa, T. Fukushima, T. Suzuki
Org. Mater. 2021, 3, 90-96.
[DOI: 10.1055/s-0041-1725046 (open access)]
7) Hysteretic Three-State Redox Interconversion among Zigzag Bisquinodimethanes with Non-fused Benzene Rings and Twisted Tetra-/Dications with [5]/[3]Acenes Exhibiting Near-Infrared Absorptions.
Y. Ishigaki, T. Harimoto, K. Sugawara, T. Suzuki
J. Am. Chem. Soc. 2021, 143, 3306-3311.
[DOI: 10.1021/jacs.1c00189]
• Highlighted in Chem-Station Spotlight Research No. 308
6) Heterocyclic Ring-Opening of Nanographene on Au(111).
K. Sun, K. Sugawara, A. Lyalin, Y. Ishigaki, K. Uosaki, T. Taketsugu, T. Suzuki, S. Kawai
Angew. Chem. Int. Ed. 2021, 60, 9427-9432.
[DOI: 10.1002/anie.202017137]
5) Expandability of the Covalent Bond: A New Facet Discovered in Extremely Long Csp3-Csp3 Single Bonds.
Y. Ishigaki, Y. Uchimura, T. Shimajiri, T. Suzuki
Bull. Chem. Soc. Jpn. 2021, 94, 1385-1393.
[DOI: 10.1246/bcsj.20200374 (open access)]
4) A hydrogen-bonded organic framework based on redox-active tri(dithiolylidene)cyclohexanetrione.
K. I. Shivakumar, S. Noro, Y. Yamaguchi, Y. Ishigaki, A. Saeki, K. Takahashi, T. Nakamura, I. Hisaki
Chem. Commun. 2021, 57, 1157-1160.
[DOI: 10.1039/D0CC07776C]
3) Molecular Recognition by Chalcogen Bond: Selective Charge‐transfer Crystal Formation of Dimethylnaphthalene with Selenadiazolotetracyanonaphthoquinodimethane.
Y. Ishigaki, K. Asai, H.-P. Jacquot de Rouville, T. Shimajiri, V. Heitz, H. Fujii-Shinomiya, T. Suzuki
Eur. J. Org. Chem. 2021, 990-997.
[DOI: 10.1002/ejoc.202001554]
2) 5-Arylidenetetronate as a Versatile Electrophore for Pi-Extended Electron Acceptors.
Y. Hayashi, Y. Ishigaki, J. Merad, T. Suzuki, M. Médebielle
Heterocycles 2021, 103, 165-171.
[DOI: 10.3987/COM-20-S(K)2]
1) 9,9'-Bi(xanthene)-Type Hexaphenylethane Derivatives as Advanced Organic Electrochromic Systems.
T. Suzuki, Y. Ishigaki, M. Takata, J. Nishida, T. Fukushima
Heterocycles 2021, 102, 419-450.
[DOI: 10.3987/REV-20-938]
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6) Flexible C–C Bonds: Reversible Expansion, Contraction, Formation, and Scission of Extremely Elongated Single Bonds.
T. Shimajiri, T. Suzuki, Y. Ishigaki
Angew. Chem. Int. Ed. 2020, 59, 22252-22257.
[DOI: 10.1002/anie.202010615]
5) Identification of synthetic inhibitors for the DNA binding of intrinsically disordered circadian clock transcription factors.
Y. Hosoya, W. Nojo, I. Kii, T. Suzuki, M. Imanishi, J. Ohkanda
Chem. Commun. 2020, 56, 11203-11206.
[DOI: 10.1039/D0CC04861E]
4) Hexaarylbutadiene: A Versatile Scaffold with Tunable Redox Properties towards Organic Near-Infrared Electrochromic Material.
Y. Ishigaki, T. Harimoto, K. Sugimoto, L. Wu, W. Zeng, D. Ye, T. Suzuki
Chem. Asian J. 2020, 15, 1147-1155.
[DOI: 10.1002/asia.201901816]
3) Switching of Redox Properties Triggered by a Thermal Equilibrium between Closed-shell Folded and Open-shell Twisted Species.
Y. Ishigaki, T. Hashimoto, K. Sugawara, S. Suzuki, T. Suzuki
Angew. Chem. Int. Ed. 2020, 59, 6581-6584.
[DOI: 10.1002/anie.201916089]
[HUSCAP: free download]
2) H2S-activatable near-infrared afterglow luminescent probes for sensitive molecular imaging in vivo.
L. Wu,# Y. Ishigaki,# Y. Hu, K. Sugimoto, W. Zeng, T. Harimoto, Y. Sun, J. He, T. Suzuki, X. Jiang, H.-Y. Chen, D. Ye
Nat. Commun. 2020, 11, 446.
[DOI: 10.1038/s41467-020-14307-y (open access)]
#These authors contributed equally.
1) A Novel Condensed Heterocyclic Quinone with a Dibenzofuranobisthiadiazole Skeleton.
K. Sugawara, W. Nojo, Y. Ishigaki, J. Ohkanda, T. Suzuki
Heterocycles 2020, 101, 99-103.
[DOI: 10.3987/COM-19-S(F)7]
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9) Electric-Field-Controllable Conductance Switching of an Overcrowded Ethylene Self-Assembled Monolayer.
S. Fujii, M. Koike, T. Nishino, Y. Shoji, T. Suzuki, T. Fukushima, M. Kiguchi
J. Am. Chem. Soc. 2019, 141, 18544-18550.
[DOI: 10.1021/jacs.9b09233]
8) Photo- and Thermal Interconversion of Multiconfigurational Strained Hydrocarbons Exhibiting Completely Switchable Oxidation to Stable Dicationic Dyes.
Y. Ishigaki, Y. Hayashi, T. Suzuki
J. Am. Chem. Soc. 2019, 141, 18293-18300.
[DOI: 10.1021/jacs.9b09646]
[HUSCAP: free download]
• Highlighted in Chem-Station Spotlight Research No. 244
7) Donor-/Acceptor-Substituted Tetrakis(arylethynyl)benzenes: The Influence of Donor Group on Optoelectronic Properties.
W. Nojo, I. D. Reingold, J. Bard, D. Chase, C.-L. Deng, M. M. Haley
ChemPlusChem 2019, 84, 1391-1395.
[DOI: 10.1002/cplu.201900266]
6) Two-way Chromic Systems Based on Tetraarylanthraquinodimethanes: Electrochromism in Solution and Mechanofluorochromism in a Solid State.
Y. Ishigaki, K. Sugawara, M. Yoshida, M. Kato, T. Suzuki
Bull. Chem. Soc. Jpn. 2019, 92, 1211-1217.
[DOI: 10.1246/bcsj.20190094]
5) Dual dynamic chirality generated in the assembly of three achiral rods through the three-fold twisting of a macrocycle.
R. Katoono, K. Sakamoto, T. Suzuki
Chem. Commun. 2019, 55, 5503-5506.
[DOI: 10.1039/C9CC02226K]
4) Selective Formation of a Mixed‐valence State from Linearly‐bridged Oligo(aromatic diamines): Drastic Structural Change into a Folded Columnar Stack for Half‐filled Polycations.
W. Nojo, Y. Ishigaki, T. Takeda, T. Akutagawa, T. Suzuki
Chem. Eur. J. 2019, 25, 7759-7765.
[DOI: 10.1002/chem.201901272]
3) Chiral diversification through the assembly of achiral phenylacetylene macrocycles with a two-fold bridge.
R. Katoono, K. Kusaka, Y. Saito, K. Sakamoto, T. Suzuki
Chem. Sci. 2019, 10, 4782-4791.
[DOI: 10.1039/C9SC00972H]
2) Synthesis of the cyclohexene segment of portimine.
T. Saito, K. Fujiwara, Y. Kondo, U. Akiba, T. Suzuki
Tetrahedron Lett. 2019, 60, 386-389.
[DOI: 10.1016/j.tetlet.2018.12.063]
1) Molecular Wires with Controllable π-Delocalization Incorporating Redox-Triggered π-Conjugated Switching Units.
W. Nojo, H. Tamaoki, Y. Ishigaki, R. Katoono, K. Fujiwara, T. Fukushima, T. Suzuki
ChemPlusChem 2019, 84, 634-642.
[DOI: 10.1002/cplu.201800341]
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11) Engineering of Electrochromic Materials as Activatable Probes for Molecular Imaging and Photodynamic Therapy.
L. Wu, Y. Sun, K. Sugimoto, Z. Luo, Y. Ishigaki, K. Pu, T. Suzuki, H.-Y. Chen, D. Ye
J. Am. Chem. Soc. 2018, 140, 16340-16352.
[DOI: 10.1021/jacs.8b10176]
10) Direct synthesis of aryl-annulated [c]carbazoles by gold(I)-catalysed cascade reaction of azide-diynes and arenes.
Y. Kawada, S. Ohmura, M. Kobayashi, W. Nojo, M. Kondo, Y. Matsuda, J. Matsuoka, S. Inuki, S. Oishi, C. Wang, T. Saito, M. Uchiyama, T. Suzuki, H. Ohno
Chem. Sci. 2018, 9, 8416-8425.
[DOI: 10.1039/C8SC03525C]
9) Expandability of a long C-O bond by a scissor effect in acenaphthofuran.
Y. Uchimura, T. Shimajiri, Y. Ishigaki, R. Katoono, T. Suzuki
Chem. Commun. 2018, 54, 10300-10303.
[DOI: 10.1039/C8CC05998E]
8) Transmission of Point Chirality to Axial Chirality for Strong Circular Dichroism in Triarylmethylium-o,o-dimers.
Y. Ishigaki, T. Iwai, Y. Hayashi, A. Nagaki, R. Katoono, K. Fujiwara, J. Yoshida, T. Suzuki
Synlett 2018, 29, 2147-2154.
[DOI: 10.1055/s-0037-1610190]
7) Double bond formation based on nitroaldol reaction and radical elimination: a prototype segment connection method for the total synthesis of nigricanoside A dimethyl ester.
T. Tsunoda, K. Fujiwara, S. Okamoto, Y. Kondo, U. Akiba, Y. Ishigaki, R. Katoono, T. Suzuki
Tetrahedron Lett. 2018, 59, 1846-1850.
[DOI: 10.1016/j.tetlet.2018.03.091]
6) Narrower HOMO-LUMO gap attained by conformational switching through peripheral polyarylation in 1,4,5,8-tetraaza-9,10-anthraquinodimethanes.
T. Suzuki, Y. Ishigaki, K. Sugawara, Y. Umezawa, R. Katoono, A. Shimoyama, Y. Manabe, K. Fukase, T. Fukushima
Tetrahedron 2018, 74, 2239-2244.
[DOI: 10.1016/j.tet.2018.03.041]
5) Longest C–C Single Bond among Neutral Hydrocarbons with a Bond Length beyond 1.8 Å.
Y. Ishigaki, T. Shimajiri, T. Takeda, R. Katoono, T. Suzuki
Chem 2018, 4, 795-806.
[DOI: 10.1016/j.chempr.2018.01.011 (free access)]
[HUSCAP: free download]
4) An improved synthesis of the C42-C52 segment of ciguatoxin 3C.
T. Saito, K. Fujiwara, Y. Sano, T. Sato, Y. Kondo, U. Akiba, Y. Ishigaki, R. Katoono, T. Suzuki
Tetrahedron Lett. 2018, 59, 1372-1376.
[DOI: 10.1016/j.tetlet.2018.02.052]
3) Supramolecular chiroptical switching of helical-sense preferences through the two-way intramolecular transmission of a single chiral source.
R. Katoono, K. Kusaka, Y. Tanaka, K. Fujiwara, T. Suzuki
Org. Biomol. Chem. 2018, 16, 1167-1171.
[DOI: 10.1039/C7OB03057F]
[HUSCAP: free download]
2) Enhanced circular dichroism at elevated temperatures through complexation-induced transformation of a three-layer cyclophane with dualistic dynamic helicity.
R. Katoono, Y. Obara, K. Fujiwara, T. Suzuki
Chem. Sci. 2018, 9, 2222-2229.
[DOI: 10.1039/C7SC05242A]
[HUSCAP: free download]
1) Dynamic or undynamic chirality generated by helical arrangement of a shape-persistent ring and rod doubly bridged in a molecule.
R. Katoono, Y. Obara, K. Kusaka, T. Suzuki
Chem. Commun. 2018, 54, 735-738.
[DOI: 10.1039/C7CC09485J]
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6) 9,10-Dihydrophenanthrene with Two Spiro(dibenzocycloheptatriene) Units: A Highly Strained Caged Hydrocarbon Exhibiting Reversible Electrochromic Behavior.
Y. Ishigaki, Y. Hayashi, K. Sugawara, T. Shimajiri, W. Nojo, R. Katoono, T. Suzuki
Molecules 2017, 22, 1900.
[DOI: 10.3390/molecules22111900 (open access)]
[HUSCAP: free download]
5) Organic Molecular Layer with High Electrochemical Bistability: Synthesis, Structure, and Properties of a Dynamic Redox System with Lipoate Units for Binding to Au(111).
E. Ohta, H. Uehara, Y. Han, K. Wada, H. Noguchi, R. Katoono, Y. Ishigaki, H. Ikeda, K. Uosaki, T. Suzuki
ChemPlusChem 2017, 82, 1043-1047.
[DOI: 10.1002/cplu.201600649]
4) Oxidative Desulfurization of Electron-Donating 5,5,7,7-Tetraaryl-5,7-dihydrodibenzo[c,e]thiepins and the Related Heterocycles: Generation of Dicationic Dyes upon Two-Electron Oxidation.
T. Suzuki, T. Kuroda, H. Tamaoki, S. Higasa, T. Nehira, R. Katoono, Y. Ishigaki, K. Fujiwara, T. Fukushima, H. Yamada
Heterocycles 2017, 95, 816-829.
[DOI: 10.3987/com-16-s(s)50]
3) Stereoselective Encapsulation for A Triarylmethylium o,o-Dimer by Natural γ-Cyclodextrin: Origin of Chiral Recognition for the Axially Chiral Dicationic Guest.
T. Suzuki, J. P. Cerón-Carrasco, H. Tamaoki, Y. Ishigaki, R. Katoono, T. Fukushima, H. Pérez-Sánchez
Heterocycles 2017, 94, 1123-1132.
[DOI: 10.3987/COM-17-13674]
2) Synthesis of the ABCDEF-ring of ciguatoxin 3C.
T. Sato, K. Fujiwara, K. Nogoshi, A. Goto, D. Domon, N. Kawamura, Y. Nomura, D. Sato, H. Tanaka, A. Murai, Y. Kondo, U. Akiba, R. Katoono, H. Kawai, T. Suzuki
Tetrahedron 2017, 73, 703-726.
[DOI: 10.1016/j.tet.2016.12.041]
1) Bis(diarylethenyl)thiophenes, -bithiophenes, and -terthiophenes: a new series of electrochromic systems that exhibit a fluorescence response.
Y. Ishigaki, H. Kawai, R. Katoono, K. Fujiwara, H. Higuchi, H. Kikuchi, T. Suzuki
Can. J. Chem. 2017, 95, 243-252.
[DOI: 10.1139/cjc-2016-0222]
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4) Redox-induced Conformational Changes in 1,3-Propylene- and m-Xylylenebis[5-(10-butyl-5,10-dihydrobenzo[a]indolo[2,3-c]carbazole)]: Twin-BIC Donors that Form Sandwich-like Dimeric Cations Exhibiting NIR Absorption.
T. Suzuki, W. Nojo, Y. Sakano, R. Katoono, Y. Ishigaki, H. Ohno, K. Fujiwara
Chem. Lett. 2016, 45, 720-722.
[DOI: 10.1246/cl.160278]
3) Dynamic helical cyclophanes with two quadruply-bridged planes arranged in an "obverse and/or reverse" relation.
R. Katoono, S. Kawai, T. Suzuki
Chem. Sci. 2016, 7, 3240-3247.
[DOI: 10.1039/c5sc04673d]
[HUSCAP: free download]
2) Assembly of an Axially Chiral Dynamic Redox System with a Perfluorobiphenyl Skeleton into Dumbbell- or Tripod-type Electron Donors.
H. Tamaoki, R. Katoono, K. Fujiwara, T. Suzuki
Angew. Chem. Int. Ed. 2016, 55, 2582-2586.
[DOI: 10.1002/anie.201510935]
1) Planar chiral desymmetrization of a two-layered cyclophane and control of dynamic helicity through the arrangement of two nonstereogenic centers.
R. Katoono, T. Suzuki
Chem. Commun. 2016, 52, 1029-1031.
[DOI: 10.1039/c5cc09069e]
[HUSCAP: free download]
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12) Redox-Mediated Reversible σ-Bond Formation/Cleavage.
T. Suzuki, H. Tamaoki, J. Nishida, H. Higuchi, T. Iwai, Y. Ishigaki, K. Hanada, R. Katoono, H. Kawai, K. Fujiwara, T. Fukushima
Organic Redox Systems 2015, 13-37.
[DOI: 10.1002/9781118858981.ch2]
11) Two-way chromic interconversion of the 2,2'-biphenol-6,6'-diyl dication with 5H,10H-dioxapyrene or 9H,10H-4,5-dihydroxyphenanthrene.
Y. Sakano, R. Katoono, K. Fujiwara, T. Suzuki
Chem. Commun. 2015, 51, 14303-14305.
[DOI: 10.1039/c5cc06338h]
10) Controllability of dynamic double helices: quantitative analysis of the inversion of a screw-sense preference upon complexation.
R. Katoono, S. Kawai, K. Fujiwara, T. Suzuki
Chem. Sci. 2015, 6, 6592-6600.
[DOI: 10.1039/c5sc02614h]
[HUSCAP: free download]
9) Synthesis of Ganbajunins-D and -E and the Proposed Structure of Thelephantin-D.
K. Fujiwara, K. Kushibe, T. Sato, T. Norikura, H. Matsue, K. Iwai, R. Katoono, T. Suzuki
Eur. J. Org. Chem. 2015, 26, 5798-5809.
[DOI: 10.1002/ejoc.201500722]
8) Dynamic Figure Eight Chirality: Multifarious Inversions of a Helical Preference Induced by Complexation.
R. Katoono, Y. Tanaka, K. Kusaka, K. Fujiwara, T. Suzuki
J. Org. Chem. 2015, 80, 7613-7625.
[DOI: 10.1021/acs.joc.5b01206]
7) Reversible Interconversion between 11,11,12,12-Tetraaryl-1,4-diaza/-1,4,5,8-tetraazaanthraquinodimethanes and Their Cationic Species: Electrochromic and Halochromic Responses.
T. Suzuki, Y. Umezawa, Y. Sakano, H. Tamaoki, R. Katoono, K. Fujiwara
Chem. Lett. 2015, 44, 905-907.
[DOI: 10.1246/cl.150251]
6) New Insights into the Hexaphenylethane Riddle: Formation of an α,o-Dimer.
Y. Uchimura, T. Takeda, R. Katoono, K. Fujiwara, T. Suzuki
Angew. Chem. Int. Ed. 2015, 54, 4010-4013.
[DOI: 10.1002/anie.201500122]
5) Design of chirality-sensing systems based on supramolecular transmission of chirality.
R. Katoono
Synergy in Supramolecular Chemistry 2015, 247-260.
[DOI: 10.1201/b17940-15]
4) Bis(10-methylacridinium)s as a versatile platform for redox active functionalized dyes and novel structures.
T. Suzuki, T. Takeda, E. Ohta, K. Wada, R. Katoono, H. Kawai, K. Fujiwara
Chem. Rec. 2015, 15, 280-294.
[DOI: 10.1002/tcr.201402073]
3) Stereoselective Synthesis of the A-Ring of Armatol A from a Bromo-Substituted Chiral Building Block Based on Ireland-Claisen Rearrangement and Ring-Closing Olefin Metathesis.
Y. Hirose, K. Fujiwara, Takafumi Saito, R. Katoono, T. Suzuki
Heterocycles 2015, 91, 76-104.
[DOI: 10.3987/com-14-13143]
2) Bis(diarylethenyl)thiophene, -bithiophene, and -terthiophene: A New Series of Violene-Cyanine Hybrid-Type Electron Donors.
Y. Ishigaki, H. Kawai, R. Katoono, K. Fujiwara, T. Suzuki
Heterocycles 2015, 90, 136-143.
[DOI: 10.3987/com-14-s(k)33]
1) Three-Way Output Molecular Response System based on Tetrakis(3,4-dialkoxyphenyl)-3,4-dihydro[5]helicenes: Perturbation of Properties by Long Alkyl Chains.
Y. Ishigaki, S. Yoshida, H. Kawai, R. Katoono, K. Fujiwara, T. Fukushima, T. Suzuki
Heterocycles 2015, 90, 126-135.
[DOI: 10.3987/com-14-s(k)31]
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16) A foldable cyclic oligomer: chiroptical modulation through molecular folding upon complexation and a change in temperature.
R. Katoono, Y. Tanaka, K. Fujiwara, T. Suzuki
J. Org. Chem. 2014, 79, 10218-10225.
[DOI: 10.1021/jo501883m]
15) Chiroptical molecular propeller based on hexakis(phenylethynyl)benzene through the complexation-induced intramolecular transmission of local point chirality.
R. Katoono, K. Kusaka, S. Kawai, Y. Tanaka, K. Hanada, T. Nehira, K. Fujiwara, T. Suzuki
Org. Biomol. Chem. 2014, 12, 9532-9538.
[DOI: 10.1039/c4ob01601g]
14) Controlled dynamic helicity of a folded macrocycle based on a bisterephthalamide with a two-fold Z-shaped structure.
R. Katoono, K. Kusaka, K. Fujiwara, T. Suzuki
Chem. Asian J. 2014, 9, 3182-3187.
[DOI: 10.1002/asia.201402658]
13) Alkylbenzoquinone involved in development of cellular slime molds.
Y. Takaya, R. Hotta, K. Fujiwara, R. Otani, Y. Uchiyama, M. Sakakibara, E. Fukuda, M. Niwa, K. Inouye, A. A. Oohata
Org. Lett. 2014, 16, 3660-3663.
[DOI: 10.1021/ol5014119]
12) Preparation, Redox Properties, and X-ray Structures of Electrochromic 11,11,12,12-Tetraarylanthraquinodimethane and Its Bianthraquinodimethane Analogue: Drastic Geometrical Changes upon Interconversion with the Dicationic Dyes.
Y. Sakano, R. Katoono, K. Fujiwara, T. Suzuki
Chem. Lett. 2014, 43, 1143-1145.
[DOI: 10.1246/cl.140393]
11) Acceptor–Donor–Acceptor Oligomers Containing Dithieno[3,2-b:2′,3′-d]pyrrole and Thieno[2,3-c]pyrrole-4,6-dione Units for Solution-Processed Organic Solar Cells.
L. G. Mercier, A. Mishra, Y. Ishigaki, F. Henne, G. Schulz, P. Bäuerle
Org. Lett. 2014, 16, 2642-2645.
[DOI: 10.1021/ol500809e]
10) Electrochiroptical Response in Aqueous Media: 9,10-Dihydrophenanthrene-9,10-diyl Dications with Michlar's Hydrol Blue Chromophores Attached with Oligoethylene Glycol Units.
T. Suzuki, K. Hanada, R. Katoono, Y. Ishigaki, S. Higasa, H. Higuchi, H. Kikuchi, K. Fujiwara, H. Yamada, T. Fukushima
Chem. Lett. 2014, 43, 982-984.
[DOI: 10.1246/cl.140163]
9) Oxidative Protonolysis of the Expanded Central C-C Bond in a Di(spiroacridan)-type Hexaphenylethane Derivative Accompanied by UV-vis, FL, and CD Spectral Changes.
T. Suzuki, Y. Kuroda, K. Wada, Y. Sakano, R. Katoono, K. Fujiwara, F. Kakiuchi, T. Fukushima
Chem. Lett. 2014, 43, 887-889.
[DOI: 10.1246/cl.140192]
8) Cyanoazulene-based muti-stage redox systems prepared from vinylcyclopropanecarbonitrile and cyclopentenone via divinylcyclopropane-rearrangement approach.
K. Tanino, T. Yamada, F. Yoshimura, T. Suzuki
Chem. Lett. 2014, 43, 607-609.
[DOI: 10.1246/cl.131149]
7) Wurster's Blue-type Cation Radicals Framed in a 5,10-Dihydrobenzo[a]indolo[2,3-c]carbazole (BIC) Skeleton: Dual Electrochromism with Drastic Changes in UV/Vis/NIR and Fluorescence.
T. Suzuki, Y. Sakano, Y. Tokimizu, Y. Miura, R. Katoono, K. Fujiwara, N. Yoshioka, N. Fujii, H. Ohno
Chem. Asian J. 2014, 9, 1841-1846.
[DOI: 10.1002/asia.201402394]
6) Complexation-induced inversion of helicity by an organic guest in a dynamic molecular propeller based on a tristerephthalamide host with a two-layer structure.
R. Katoono, K. Fujiwara, T. Suzuki
Chem. Commun. 2014, 50, 5438-5440.
[DOI: 10.1039/c4cc00323c]
[HUSCAP: free download]
5) Preparation and structure of acenaphthylene-1,2-diyldi(9-acridine) derivatives with a long C=C bond.
T. Takeda, Y. Uchimura, H. Kawai, R. Katoono, K. Fujiwara, T. Suzuki
Chem. Commun. 2014, 50, 3924-3927.
[DOI: 10.1039/c3cc49573f]
4) Electrochromic and unique chiroptical properties of helically deformed tetraarylquinodimethanes generated from less hindered dicationic precursors upon reduction.
T. Suzuki, Y. Sakano, T. Iwai, S. Iwashita, Y. Miura, R. Katoono, H. Kawai, K. Fujiwara, Y. Tsuji, T. Fukushima
Pure Appl. Chem. 2014, 86, 507-516.
[DOI: 10.1515/pac-2013-1003]
3) Expandability of Ultralong C–C Bonds: Largely Different C1–C2 Bond Lengths Determined by Low-temperature X-ray Structural Analyses on Pseudopolymorphs of 1,1-Bis(4-fluorophenyl)-2,2-bis(4-methoxyphenyl)pyracene.
T. Suzuki, Y. Uchimura, F. Nagasawa, T. Takeda, H. Kawai, R. Katoono, K. Fujiwara, K. Murakoshi, T. Fukushima, A. Nagaki, J. Yoshida
Chem. Lett. 2014, 43, 86-88.
[DOI: 10.1246/cl.130872]
2) Total Synthesis of Pectenotoxin-2.
K. Fujiwara, Y. Suzuki, N. Koseki, Y. Aki, Y. Kikuchi, S. Murata, F. Yamamoto, M. Kawamura, T. Norikura, H. Matsue, A. Murai, H. Kawai, T. Suzuki
Angew. Chem. Int. Ed. 2014, 53, 780-784.
[DOI: 10.1002/anie.201308502]
1) Chiral memory units based on dynamic redox systems with a dibenzoxepinone skeleton: Drastic change in racemization barrier and electrochemical bistability.
K. Wada, Y. Chiba, T. Takeda, H. Kawai, R. Katoono, K. Fujiwara, T. Suzuki
Heterocycles 2014, 88, 945-952.
[DOI: 10.3987/com-13-s(s)93]
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14) Time-integrated one-pot synthesis, X-ray structure, and redox properties of electrochromic 1,3-diarylisobenzofurans.
T. Hamura, R. Nakayama, K. Hanada, Y. Sakano, R. Katoono, K. Fujiwara, T. Suzuki
Chem. Lett. 2013, 42, 1244-1246.
[DOI: 10.1246/cl.130479]
13) Geometrical remote steric effects in 4,5-disubstituted-9,10-dihydrophenanthrenes: expansion of prestrained C9-C10 bond in di(spiroacridan) derivatives.
K. Wada, T. Takeda, H. Kawai, R. Katoono, K. Fujiwara, T. Suzuki
Chem. Lett. 2013, 42, 1194-1196.
[DOI: 10.1246/cl.130502]
12) Preparation, properties, and X-ray structures of bis(10-methyl-9-methyleneacridan)-type electron donors with a thiophene, bithiophene, or terthiophene skeleton: redox switching of thiophene-thienoquinoid structure accompanied by UV-vis-NIR electrochromic response.
T. Suzuki, Y. Hoshiyama, K. Wada, Y. Ishigaki, Y. Miura, H. Kawai, R. Katoono, K. Fujiwara, T. Fukushima
Chem. Lett. 2013, 42, 1004-1006.
[DOI: 10.1246/cl.130401]
11) 5,10-dihydrobenzo[a]indolo[2,3-c]carbazole: a highly fluorescent disk-shaped electron donor exhibiting dual UV-vis-NIR and fluorescence spectral changes upon electrolysis.
T. Suzuki, Y. Tokimizu, Y. Sakano, R. Katoono, K. Fujiwara, S. Naoe, N. Fujii, H. Ohno
Chem. Lett. 2013, 42, 1001-1003.
[DOI: 10.1246/cl.130388]
10) Hexaphenylethanes with an ultralong C-C bond: expandability of the C-C bond in highly strained tetraarylpyracenes.
T. Takeda, Y. Uchimura, H. Kawai, R. Katoono, K. Fujiwara, T. Suzuki
Chem. Lett. 2013, 42, 954-962.
[DOI: 10.1246/cl.130598]
9) A C3-symmetric chiroptical molecular propeller based on hexakis(phenylethynyl)benzene with a threefold terephthalamide: stereospecific propeller generation through the cooperative transmission of point chiralities on the host and guest upon complexation.
R. Katoono, H. Kawai, M. Ohkita, K. Fujiwara, T. Suzuki
Chem. Commun. 2013, 49, 10352-10354.
[DOI: 10.1039/c3cc43571g]
8) Oxidative conversion of tetraaryldihydrodibenzothiepins into elemental sulfur and stable cationic dyes accompanied by dual UV-vis and CD spectral changes.
T. Suzuki, T. Kuroda, H. Tamaoki, S. Higasa, R. Katoono, K. Fujiwara, T. Fukushima, H. Yamada
Chem. Lett. 2013, 42, 706-708.
[DOI: 10.1246/cl.130275]
7) Redox switching of conjugation length using 9,9,10,10-tetraaryl-9,10-dihydrophenanthrene as an ON/OFF unit: preparation, X-ray structure, and redox properties of perfluorobiphenyl derivative and its SNAr reactions to π-extended analogues.
T. Suzuki, H. Tamaoki, R. Katoono, K. Fujiwara, J. Ichikawa, T. Fukushima
Chem. Lett. 2013, 42, 703-705.
[DOI: 10.1246/cl.130190]
6) A new variant of fused cyclic ether synthesis based on Ireland-Claisen rearrangement and RCM.
D. Domon, K. Fujiwara, N. Kawamura, R. Katoono, H. Kawai, T. Suzuki
Nat. Prod. Commun. 2013, 8, 929-934.
5) A stereoselective method for the construction of the C8'-O-C6'' ether of nigricanoside-A: synthesis of simple models for the C20 lipid chain/galactosyl glycerol segment.
N. Kinashi, K. Fujiwara, T. Tsunoda, R. Katoono, H. Kawai, T. Suzuki
Tetrahedron Lett. 2013, 54, 4564-4567.
[DOI: 10.1016/j.tetlet.2013.06.085]
[HUSCAP: free download]
4) Hydrindacene-Based Acetylenic Macrocycles with Horizontally and Vertically Ordered Functionality Arrays.
H. Kawai, T. Utamura, E. Motoi, T. Takahashi, H. Sugino, M. Tamura, M. Ohkita, K. Fujiwara, T. Saito, T. Tsuji, T. Suzuki
Chem. Eur. J. 2013, 19, 4513-4524.
[DOI: 10.1002/chem.201200716]
3) p-Terphenyl Derivatives from the Mushroom Thelephora aurantiotincta Suppress the Proliferation of Human Hepatocellular Carcinoma Cells via Iron Chelation.
T. Norikura, K. Fujiwara, T. Yanai, Y. Sano, T. Sato, T. Tsunoda, K. Kushibe, A. Todate, Y. Morinaga, K. Iwai, H. Matsue
J. Agric. Food Chem. 2013, 61, 1258-1264.
[DOI: 10.1021/jf3041098]
2) An Ireland-Claisen rearrangement/RCM based approach for the construction of the EF-ring of ciguatoxin 3C.
K. Nogoshi, D. Domon, K. Fujiwara, N. Kawamura, R. Katoono, H. Kawai, T. Suzuki
Tetrahedron Lett. 2013, 54, 676-680.
[DOI: 10.1016/j.tetlet.2012.12.001]
1) 7,7,8,8-Tetraaryl-o-quinodimethane Stabilized by Dibenzo Annulation: A Helical π-Electron System That Exhibits Electrochromic and Unique Chiroptical Properties.
T. Suzuki, Y. Sakano, T. Iwai, S. Iwashita, Y. Miura, R. Katoono, H. Kawai, K. Fujiwara, Y. Tsuji, T. Fukushima
Chem. Eur. J. 2013, 19, 117-123.
[DOI: 10.1002/chem.201203092]
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7) Induced preference for axial chirality in a triarylmethylium o,o-dimer upon complexation with natural γ-cyclodextrin: strong ECD signaling and fixation of supramolecular chirality to molecular chirality.
T. Suzuki, H. Tamaoki, K. Wada, R. Katoono, T. Nehira, H. Kawai, K. Fujiwara
Chem. Commun. 2012, 48, 2812-2814.
[DOI: 10.1039/c2cc17475h]
6) Effects of Axle-Core, Macrocycle, and Side-Station Structures on the Threading and Hydrolysis Processes of Imine-Bridged Rotaxanes.
H. Sugino, H. Kawai, T. Umehara, K. Fujiwara, T. Suzuki
Chem. Eur. J. 2012, 18, 13722-13732.
[DOI: 10.1002/chem.201200837]
5) Chirality sensing based on changes in conformation of dynamic terephthalamide hosts: propeller-, double-arm-, and figure-of-eight-shaped hosts.
R. Katoono, H. Kawai, K. Fujiwara, T. Suzuki
J. Synth. Org. Chem. Jpn. 2012, 70, 640-650.
[DOI: 10.5059/yukigoseikyokaishi.70.640]
4) Stable neutral radicals based on the polyazaacene skeleton that exhibit high electrochemical amphotericity.
Y. Miura, H. Chiba, R. Katoono, H. Kawai, K. Fujiwara, S. Suzuki, K. Okada, T. Suzuki
Tetrahedron Lett. 2012, 53, 6561-6564.
[DOI: 10.1016/j.tetlet.2012.09.095]
3) Nonadditive substituent effects on expanding prestrained C-C bond in crystal: X-ray analyses on unsymmetrically substituted tetraarylpyracenes prepared by a flow microreactor method.
T. Suzuki, Y. Uchimura, Y. Ishigaki, T. Takeda, R. Katoono, H. Kawai, K. Fujiwara, A. Nagaki, J. Yoshida
Chem. Lett. 2012, 41, 541-543.
[DOI: 10.1246/cl.2012.541]
2) Total Synthesis of Thelephantin O, Vialinin A/Terrestrin A, and Terrestrins B-D.
K. Fujiwara, T. Sato, Y. Sano, T. Norikura, R. Katoono, T. Suzuk, H. Matsue
J. Org. Chem. 2012, 77, 5161-5166.
[DOI: 10.1021/jo300565s]
1) Molecular gyroscope with a trans-cyclohexane-1,4-diimine rotor unit: isolation and characterization of a geometric isomer as a formal intermediate of hindered rotation.
H. Sugino, H. Kawai, K. Fujiwara, T. Suzuki
Chem. Lett. 2012, 41, 79-81.
[DOI: 10.1246/cl.2012.79]
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6) Construction of main-chain type oligorotaxanes and their switching properties: controlled dynamic behavior by imine-bonding formation and cleavage.
H. Sugino, H. Kawai, K. Fujiwara, T. Suzuki
Kobunshi Ronbunshu 2011, 68, 795-803.
[DOI: 10.1295/koron.68.795]
5) Hysteretic tricolor electrochromic systems based on the dynamic redox properties of unsymmetrically substituted dihydrophenanthrenes and biphenyl-2,2'-diyl dications: efficient precursor synthesis by a flow microreactor method.
Y. Ishigaki, T. Suzuki, J. Nishida, A. Nagaki, N. Takabayashi, H. Kawai, K. Fujiwara, J. Yoshida
Materials 2011, 4, 1906-1926.
[DOI: 10.3390/ma4111906]
4) 1,4-Diaryl-7,10-dimethoxyquinoxalino[2,3-b]quinoxalines and their dihydro derivatives: redox switching of NIR absorption and fluorescence.
Y. Miura, H. Kawai, K. Fujiwara, T. Suzuki
Chem. Lett. 2011, 40, 975-977.
[DOI: 10.1246/cl.2011.975]
3) Improved synthesis of C8-C20 segment of pectenotoxin-2.
K. Fujiwara, Y. Suzuki, N. Koseki, S. Murata, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2011, 52, 5589-5592.
[DOI: 10.1016/j.tetlet.2011.08.051]
2) Anticancer Activities of Thelephantin O and Vialinin A Isolated from Thelephora aurantiotincta.
T. Norikura, K. Fujiwara, T. Narita, S. Yamaguchi, Y. Morinaga, K. Iwai, H. Matsue
J. Agric. Food Chem. 2011, 59, 6974-6979.
[DOI: 10.1021/jf200461j]
1) Synthesis of the C22-C37 segment of prorocentin.
A. Takemura, Y. Katagiri, K. Fujiwara, H. Kawai, T. Suzuki
Tetrahedron Lett. 2011, 52, 1222-1224.
[DOI: 10.1016/j.tetlet.2011.01.042]
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8) Enhancement of transcriptional activity of mutant p53 tumor suppressor protein through stabilization of tetramer formation by calix[6]arene derivatives.
R. Kamada, W. Yoshino, T. Nomura, Y. Chuman, T. Imagawa, T. Suzuki, K. Sakaguchi
Bioorg. Med. Chem. Lett. 2010, 20, 4412-4415.
[DOI: 10.1016/j.bmcl.2010.06.053]
7) Model studies for the stereoselective construction of the BC-ring of armatol F based on Ireland-Claisen rearrangement and relay ring-closing olefin metathesis.
K. Fujiwara, K. Tanaka, Y. Katagiri, H. Kawai, T. Suzuki
Tetrahedron Lett. 2010, 51, 4543-4546.
[DOI: 10.1016/j.tetlet.2010.06.103]
6) Studies toward the total synthesis of armatol F: stereoselective construction of the C6 and C7 stereocenters and formation of the A-ring skeleton.
K. Fujiwara, Y. Hirose, D. Sato, H. Kawai, T. Suzuki
Tetrahedron Lett. 2010, 51, 4263-4266.
[DOI: 10.1016/j.tetlet.2010.06.026]
5) Intramolecular chirality transfer in trans-5,6-diaryl-5,6-dihydro-1,10-phenanthroline-5,6-diols: solvato- and halochromic responses by circular dichroism.
T. Suzuki, Y. Miura, T. Nehira, H. Kawai, K. Fujiwara
Chem. Lett. 2010, 39, 695-697.
[DOI: 10.1246/cl.2010.695]
4) Drastic change in racemization barrier upon redox reactions: novel chiral-memory units based on dynamic redox systems.
T. Suzuki, K. Wada, Y. Ishigaki, Y. Yoshimoto, E. Ohta, H. Kawai, K. Fujiwara
Chem. Commun. 2010, 46, 4100-4102.
[DOI: 10.1039/c0cc00026d]
3) Intramolecular triarylmethane-triarylmethylium complex: generation, properties, and X-ray structure of a C-H bridged carbocation.
T. Suzuki, T. Takeda, Y. Yoshimoto, T. Nagasu, H. Kawai, K. Fujiwara
Pure Appl. Chem. 2010, 82, 1033-1044.
[DOI: 10.1351/pac-con-09-10-11]
2) Halochromic chiroptical response of novel bis(9-acridinyl)-type fluorophores with a helical π-framework.
T. Nehira, Y. Yoshimoto, K. Wada, H. Kawai, K. Fujiwara, T. Suzuki
Chem. Lett. 2010, 39, 165-167.
[DOI: 10.1246/cl.2010.165]
1) Phenanthrene-4,5-diylbis(10-methylacridinium) with a short C+ -- C+ contact: preparation, molecular structure, redox properties, and electrochromic interconversion with dihydropyrene derivative.
T. Suzuki, Y. Yoshimoto, K. Wada, T. Takeda, H. Kawai, K. Fujiwara
Heterocycles 2010, 80, 149-155.
[DOI: 10.3987/com-09-s(s)35]
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7) Dynamic Molecular Propeller: Supramolecular Chirality Sensing by Enhanced Chiroptical Response through the Transmission of Point Chirality to Mobile Helicity.
R. Katoono, H. Kawai, K. Fujiwara, T. Suzuki
J. Am. Chem. Soc. 2009, 131, 16896-16904.
[DOI: 10.1021/ja906810b]
6) Multi-Input/Multi-Output Molecular Response System Based on the Dynamic Redox Behavior of 3,3,4,4-Tetraaryldihydro[5]helicene Derivatives: Reversible Formation/Destruction of Chiral Fluorophore and Modulation of Chiroptical Properties by Solvent Polarity.
T. Suzuki, Y. Ishigaki, T. Iwai, H. Kawai, K. Fujiwara, H. Ikeda, Y. Kano, K. Mizuno
Chem. Eur. J. 2009, 15, 9434-9441.
[DOI: 10.1002/chem.200900968]
5) 4,5-bis(diarylmethylene)-1,3-dithiole: a novel helical electron donor exhibiting electrochromic behavior.
T. Suzuki, S. Mikuni, Y. Ishigaki, H. Higuchi, H. Kawai, K. Fujiwara
Chem. Lett. 2009, 38, 748-749.
[DOI: 10.1246/cl.2009.748]
4) Preparation and X-ray structures of trans-5,6-diaryl-5,6-dihydro-1,10-phenanthroline-5,6-diols: formation of supramolecular rod by hydrogen bonds.
T. Suzuki, Y. Miura, R. Tamaki, H. Kawai, K. Fujiwara
Chem. Lett. 2009, 38, 670-671.
[DOI: 10.1246/cl.2009.670]
3) Negligible diradical character for the ultralong C-C bond in 1,1,2,2-tetraarylpyracene derivatives.
T. Takeda, H. Kawai, R. Herges, E. Mucke, Y. Sawai, K. Murakoshi, K. Fujiwara, T. Suzuki
Tetrahedron Lett. (50th anniversary special issue) 2009, 50, 3693-3697.
[DOI: 10.1016/j.tetlet.2009.03.202]
2) Stereoselective construction of an anti-beta-alkoxy ether by Ireland-Claisen rearrangement for medium-ring ether synthesis.
K. Fujiwara, N. Kawamura, H. Kawai, T. Suzuki
Tetrahedron Lett. 2009, 50, 1236-1239.
[DOI: 10.1016/j.tetlet.2009.01.011]
1) Intramolecular methylacridan-methylacridinium complexes with a phenanthrene-4,5-diyl or related skeleton: Geometry-properties relationship in isolable C-H bridged carbocations.
T. Suzuki, Y. Yoshimoto, T. Takeda, H. Kawai, K. Fujiwara
Chem. Eur. J. 2009, 15, 2210-2216.
[DOI: 10.1002/chem.200801769]
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9) Designed molecular propellers based on tetraarylterephthalamide and their chiroptical properties induced by biased helicity through transmission of point chirality.
R. Katoono, H. Kawai, K. Fujiwara, T. Suzuki
Chem. Commun. 2008, 4906-4908.
[DOI: 10.1039/b808936a]
8) Entropy- and Hydrolytic-Driven Positional Switching of Macrocycle between Imine- and Hydrogen-Bonding Stations in Rotaxane-Based Molecular Shuttles.
T. Umehara, H. Kawai, K. Fujiwara, T. Suzuki
J. Am. Chem. Soc. 2008, 130, 13981-13988.
[DOI: 10.1021/ja804888b]
7) Ultralong Carbon-Carbon Bonds in Dispirobis(10-methylacridan) Derivatives with an Acenaphthene, Pyracene, or Dihydropyracylene Skeleton.
H. Kawai, T. Takeda, K. Fujiwara, M. Wakeshima, Y. Hinatsu, T. Suzuki
Chem. Eur. J. 2008, 14, 5780-5793.
[DOI: 10.1002/chem.200702028]
6) Synthesis of the ABC-ring models of goniodomin A: preference for the unnatural configuration at C11 of the BC-ring in a non-macrocyclic model system.
T. Katagiri, K. Fujiwara, H. Kawai, T. Suzuki
Tetrahedron Lett. 2008, 49, 3242-3247.
[DOI: 10.1016/j.tetlet.2008.03.082]
5) Ultralong C-C bonds in hexaphenylethane derivatives.
T. Suzuki, T. Takeda, H. Kawai, K. Fujiwara
Pure Appl. Chem. 2008, 80, 547-553.
[DOI: 10.1351/pac200880030547]
4) Concise stereoselective synthesis of cis-3-alkoxy-2-carbomethoxy medium-ring oxacycles from (R)-3-(3-butenyl)-4-propynoyloxazolidin-2-one.
D. Sato, K. Fujiwara, H. Kawai, T. Suzuki
Tetrahedron Lett. 2008, 49, 1514-1517.
[DOI: 10.1016/j.tetlet.2007.12.111]
3) Unprecedented four-way-output molecular response system based on biphenyl-2,2'-diyldiacridiniums: Induction of axial chirality through intramolecular hydrogen bonds between chiral amide groups.
T. Suzuki, K. Ohta, T. Nehira, H. Higuchi, E. Ohta, H. Kawai, K. Fujiwara
Tetrahedron Lett. 2008, 49, 772-776.
[DOI: 10.1016/j.tetlet.2007.11.179]
2) Four-way-output Molecular Response System Based on the Dihydrodibenzo[c,g]phenanthrene Skeleton: Modulation of CD and FDCD Activity by Acid and Electron-transfer.
E. Ohta, T. Nehira, H. Kawai, K. Fujiwara, T. Suzuki
Tetrahedron Lett. 2008, 49, 777-781.
[DOI: 10.1016/j.tetlet.2007.11.188]
1) Synthesis of the DE-ring of goniodomin A and prediction of its natural relative stereochemistry.
T. Katagiri, K. Fujiwara, H. Kawai, T. Suzuki
Tetrahedron Lett. 2008, 49, 233-237.
[DOI: 10.1016/j.tetlet.2007.11.084]
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11) Synthesis of the EF-Ring of Ciguatoxin 3C Based on the [2,3]-Wittig Rearrangement and Ring-Closing Olefin Metathesis.
A. Goto, K. Fujiwara, A. Kawai, H. Kawai, T. Suzuki
Org. Lett. 2007, 9, 5373-5376.
[DOI: 10.1021/ol702231j]
10) Intramolecular triarylmethane-triarylmethylium complexes with a naphthalene-1,8-diyl skeleton: isolation, structure, and reactivities of the C-H-bridged carbocations.
T. Takeda, H. Kawai, K. Fujiwara, T. Suzuki
Chem. Eur. J. 2007, 13, 7915-7925.
[DOI: 10.1002/chem.200700803]
9) Allosteric bindings of hydrindacene-based receptors with benzendiols: regulation by the cooperative amide hydrogen-bonding.
H. Kawai
J. Synth. Org. Chem. Jpn. 2007, 65, 677-687.
[DOI: 10.5059/yukigoseikyokaishi.65.677]
8) Synthesis of the C8-C20 and C21-C30 segments of pectenotoxin 2.
K. Fujiwara, Y. Aki, F. Yamamoto, M. Kawamura, M. Kobayashi, A. Okano, D. Awakura, S. Shiga, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2007, 48, 4523-4527.
[DOI: 10.1016/j.tetlet.2007.04.136]
7) Chromic and Fluorescence Response System Based on the Dihydrophenanthroline-Bipyridine Skeleton: Dynamic Redox Behavior and Metal Binding Properties.
T. Suzuki, R. Tamaki, E. Ohta, T. Takeda, H. Kawai, K. Fujiwara, M. Kato
Tetrahedron Lett. 2007, 48, 3823-3827.
[DOI: 10.1016/j.tetlet.2007.03.167]
6) Electrochiroptical Systems Based on Biphenyl-2,2'-diyl-type Dicationic Dyes: Strong Chiroptical Signals through the Transmission of Point Chirality to Axial Chirality.
T. Suzuki, T. Iwai, E.Ohta, H. Kawai, K. Fujiwara
Tetrahedron Lett. 2007, 48, 3599-3603.
[DOI: 10.1016/j.tetlet.2007.03.080]
5) Dynamic redox system as electrochromic materials: bistability and advanced responce.
T. Suzuki, E.Ohta, H. Kawai, K. Fujiwara, T. Fukushima
Synlett 2007, 6, 851-869.
[DOI: 10.1055/s-2007-973887]
4) Polycavernoside C and C2, the new analogs of the human lethal toxin polycavernoside A, from the red alga, Gracilaria edulis.
M.Yotsu-Yamashita, K. Abe, T. Seki, K. Fujiwara, T. Yasumoto
Tetrahedron Lett. 2007, 48, 2255-2259.
[DOI: 10.1016/j.tetlet.2007.02.003]
3) Synthesis of Prelaureatin, Laurencin, and the Medium-Ring Ether Parts of Ciguatoxins.
K. Fujiwara
J. Synth. Org. Chem. Jpn. 2007, 65, 502-510.
[DOI: 10.5059/yukigoseikyokaishi.65.502]
2) Synthesis and relative stereochemistry of the A- and F-rings of goniodomin A.
K. Fujiwara, J. Naka, T. Katagiri, D. Sato, H. Kawai, T. Suzuki
Bull. Chem. Soc. Jpn. 2007, 80, 1173-1186.
[DOI: 10.1246/bcsj.80.1173]
1) Multi-input-multi-output molecular response system based on dynamic redox behavior of hexaphenylethane-type electron donors with the tetrahydrophenanthrazepine skeleton: strong chiroptical signals through the transmission of point chirality to helicity.
T. Suzuki, S. Tanaka, H. Kawai, K. Fujiwara
Chem. Asian J. 2007, 2, 171-177.
[DOI: 10.1002/asia.200600299]
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7) Tetraaryl-o-quinodimethanes: reductive generation and severely distorted geometry.
S. Iwashita, T. Suzuki
J. Synth. Org. Chem. Jpn. 2006, 64, 958-968.
[DOI: 10.5059/yukigoseikyokaishi.64.958]
[HUSCAP: free download]
6) Dynamic covalently bonded rotaxanes cross-linked imine bonds between the axle and ring: inverse temperature dependence of subunit mobility.
H. Kawai, T. Umehara, K. Fujiwara, T. Tsuji, T. Suzuki
Angew. Chem. Int. Ed. 2006, 45, 4281-4286.
[DOI: 10.1002/anie.200600750]
5) Total synthesis of medium-ring ethres from Laurencia red algae (Review).
K. Fujiwara
In "Topics in Heterocyclic Chemistry, Volume 5: Marine Natural Products", R. R. Gupta and H. Kiyota, Eds.; Springer Verlag, Berlin Heidelberg, 2006, pp 97-148.
[DOI: 10.1007/7081_013]
4) Convergent synthesis of the common FGHI-ring part of ciguatoxins.
A. Takizawa, K. Fujiwara, E. Doi, A. Murai, H. Kawai, T. Suzuki
Tetrahedron 2006, 62, 7408-7435.
[DOI: 10.1016/j.tet.2006.05.014]
3) Change in conformation upon complexation of double-armed terephthalamide hosts: dynamic molecular recognition of ditopic guests with strong CD signaling.
R. Katoono, H. Kawai, K. Fujiwara, T. Suzuki
Tetrahedron Lett. 2006, 47, 1513-1518.
[DOI: 10.1016/j.tetlet.2006.01.022]
2) Synthesis of the common FGHI-ring part of ciguatoxins.
A. Takizawa, K. Fujiwara, E. Doi, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2006, 47, 747-751.
[DOI: 10.1016/j.tetlet.2005.11.085]
1) The first stable tetraarylacenaphthenequinodimethanes exhibiting electrochromism with 'write-protect' option: preparation, highly deformed structure, and reversible interconversion with acenaphthylene-5,6-diyl dicationic dyes.
T. Suzuki, S. Iwashita, T. Yoshino, H. Kawai, K. Fujiwara, M. Ohkita, T. Tsuji, K. Ono, M. Takenaka
Tetrahedron Lett. 2006, 47, 467-471.
[DOI: 10.1016/j.tetlet.2005.11.059]
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12) Convergent synthesis of the IJKLM-ring part of ciguatoxin CTX3C.
D. Domon, K. Fujiwara, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2005, 46, 8285-8288.
[DOI: 10.1016/j.tetlet.2005.09.164]
11) Synthesis of the C42-C52 part of ciguatoxin CTX3C.
D. Domon, K. Fujiwara, Y. Ohtaniuchi, A. Takezawa, S. Takeda, H. Kawasaki, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2005, 46, 8279-8283.
[DOI: 10.1016/j.tetlet.2005.09.163]
10) Stereospecific change in conformation upon complexation of an exoditopic tetraamide host with a bis(ammonium) guset: chiral recognition and strong CD signaling.
R. Katoono, H. Kawai, K. Fujiwara, T. Suzuki
Chem. Commun. 2005, 5154-5156.
[DOI: 10.1039/b510134d]
9) Synthesis of (+)-laurencin via ring expansion of a C-glycoside derivative.
K. Fujiwara, S. Yoshimoto, A. Takizawa, S.-i. Souma, H. Mishima, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2005, 46, 6819-6822.
[DOI: 10.1016/j.tetlet.2005.08.024]
8) Isolation and Low-Temperature X-ray Analysis of Intramolecular Triarylmethane-Triarylmethylium Complex: Preference for a C-H-Bridged Unsymmetric Structure Exhibiting a Facile 1,5-Hydride Shift and Charge-Transfer Interaction.
H. Kawai, T. Takeda, K. Fujiwara, T. Suzuki
J. Am. Chem. Soc. 2005, 127, 12172-12173.
[DOI: 10.1021/ja053161h]
7) Synthesis of the EF-ring segment of ciguatoxin CTX1B based on novel regioselective reduction of unsaturated cyanohydrins and ring-closing olefin metathesis.
A. Takemura, K. Fujiwara, K. Shimawaki, A. Murai, H. Kawai, Takanori Suzuki
Tetrahedron 2005, 61, 7392-7419.
[DOI: 10.1016/j.tet.2005.05.073]
6) Synthesis of the common left-half part of pectenotoxins.
K. Fujiwara, M. Kobayashi, F. Yamamoto, Y.-i. Aki, M. Kawamura, D. Awakura, S. Amano, A. Okano, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2005, 46, 5067-5069.
[DOI: 10.1016/j.tetlet.2005.05.062]
5) Tetracyanoanthraquinodimethanes with a Chiral Amide Group: Preparation, Properties, and Charge-Transfer Photochirogenetic Reaction with 1,2-Dianisylacenaphthene-1,2-diol.
T. Suzuki, K. Ichioka, H. Higuchi, H. Kawai, K. Fujiwara, M. Ohkita, T. Tsuji, Y. Takahashi
J. Org. Chem. 2005, 70, 5592-5598.
[DOI: 10.1021/jo0505324]
4) Butane-1,4-diyl dications stabilized by steric factors: electrochiroptical response systems based on reversible interconversion between dihydro[5]helicene-type electron acceptors and electron-donating 1,1'-binaphthyls.
E. Ohta, H. Higuchi, H. Kawai, K. Fujiwara, T. Suzuki
Org. Biomol. Chem. 2005, 3, 3024-3031.
[DOI: 10.1039/b506435j]
3) Exceptionally large difference in bond length among conformational isomorphs of a hexaphenylethane derivative with a dispiropyracene skeleton.
H. Kawai, T. Takeda, K. Fujiwara, T. Inabe, T. Suzuki
Crystal Growth & Design 2005, 5, 2256-2260.
[DOI: 10.1021/cg050064r]
2) Stereoselective synthesis of cis- and trans-2,3-disubstituted eight-membered medium-ring ethers based on Ireland-Claisen rearrangement of 3-alkoxy-2-propenyl glycolate esters and ring-closing olefin metathesis.
K. Fujiwara, A. Goto, D. Sato, H. Kawai, T. Suzuki
Tetrahedron Lett. 2005, 46, 3465-3468.
[DOI: 10.1016/j.tetlet.2005.03.114]
1) Multipoint Recognition of Catecholamines by Hydrindacene-Based Receptors Accompanied by the Complexation-Induced Conformational Switching.
H. Kawai, R. Katoono, K. Fujiwara, T. Tsuji, T. Suzuki
Chem. Eur. J. 2005, 11, 815-824.
[DOI: 10.1002/chem.200400819]
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17) Dynamic redox systems based on bis(spiroxanthene)-type donors with a polycyclic aromatic hydrocarbons: Preparation, X-ray structures and electrochromic response with fluorescence change.
T. Suzuki, S. Tanaka, H. Higuchi, H. Kawai, K. Fujiwara
Tetrahedron Lett. 2004, 45, 8563-8567.
[DOI: 10.1016/j.tetlet.2004.09.080]
16) [10]Paracyclophanediamides and their octadehydro derivatives: novel exotopic receptors with hydrogen-bonding sites on the bridge.
R. Katoono, H. Kawai, K. Fujiwara, T. Suzuki
Tetrahedron Lett. 2004, 45, 8455-8459.
[DOI: 10.1016/j.tetlet.2004.09.115]
15) Recent Advances in the Synthesis of trans-Fused Polycyclic Ethers by Hydroxy-Epoxide-Cyclization and Ether-Ring-Expansion Reactions.
K. Fujiwara, A. Murai
Bull. Chem. Soc. Jpn. 2004, 77, 2129-2146.
[DOI: 10.1246/bcsj.77.2129]
14) Short nonbond and long C-C bond in naphthalene-1,8-diyl(10-methylacridinium) and the corresponding hexaphenylethane derivative: A new electrochromic pair exhibiting dynamic redox properties.
H. Kawai, T. Takeda, K. Fujiwara, T. Suzuki
Tetrahedron Lett. 2004, 45, 8289-8293.
[DOI: 10.1016/j.tetlet.2004.09.071]
13) Enantio- and stereocontrolled formation of the bisspiroacetal core of spirolide B.
J. Ishihara, T. Ishizaka, T. Suzuki, S. Hatakeyama
Tetrahedron Lett. 2004, 45, 7855-7858.
[DOI: 10.1016/j.tetlet.2004.08.156]
12) Novel branched ether formation via conjugate reduction of an unsaturated cycnohydrin derivative and its synthetic application to the EF-ring segment of ciguatoxin.
A. Takemura, K. Fujiwara, A. Murai, H. Kawai, T. Suuki
Tetrahedron Lett. 2004, 45, 7567-7571.
[DOI: 10.1016/j.tetlet.2004.08.117]
11) Convergent synthesis of the ABCDE-ring part of ciguatoxin CTX3C.
K. Fujiwara, A. Goto, D. Sato, Y. Ohtaniuchi, H. Tanaka, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2004, 45, 7011-7014.
[DOI: 10.1016/j.tetlet.2004.07.145]
10) Kinetic stabilization of the o-quinoidal 3,4-benzotropone system.
M. Ohkita, K. Sano, K. Ono, K. Saito, T. Suzuki, T. Tsuji
Org. Biomol. Chem. 2004, 2, 2421-2425.
[DOI: 10.1039/b408393h]
9) Synthesis and Characterization of Hexakis(4-pyridylethynyl)benzene and Hexakis(5-pyrimidylethynyl)benzene.
M. Ohkita, C. Adachi, M. Kawano, T. Suzuki
Heterocycles 2004, 63, 1537-1540.
[DOI: 10.3987/com-04-10073]
8) First Stable 7,7,8,8-Tetraaryl-o-quinodimethane: Isolation, X-ray Structure, Electrochromic Response of 9,10-Bis(dianisylmethylene)-9,10-dihydrophenanthrene.
S. Iwashita, E. Ohta, H. Higuchi, H. Kawai, K. Fujiwara, K. Ono, M. Takenaka, T. Suzuki
Chem. Commun. 2004, 2076-2077.
[DOI: 10.1039/b405837b]
7) Formal Total Synthesis of Hemibrevetoxin B by a Convergent Strategy.
K. Fujiwara, D. Sato, M. Watanabe, H. Morishita, A. Murai, H. Kawai, T. Suzuki
Tetrahedron Lett. 2004, 45, 5243-5246.
[DOI: 10.1016/j.tetlet.2004.05.020]
6) Peri-interaction between Diarylmethyl and Diarylmethylium Units in 1,8-Disubstituted Naphthalenes: Preference of Localized Structure for the C-H Bridged Carbocation.
H. Kawai, T. Nagasu, T. Takeda, K. Fujiwara, T. Tsuji, M. Ohkita, J. Nishida, T. Suzuki
Tetrahedron Lett. 2004, 45, 4553-4558.
[DOI: 10.1016/j.tetlet.2004.04.002]
5) Positive Homotropic Allosteric Binding of Benzenediols in a Hydrindacene-Based Exoditopic Receptor: Cooperativity in Amide Hydrogen Bonding.
H. Kawai, R. Katoono, K. Nishimura, S. Matsuda, K. Fujiwara, T. Tsuji, T. Suzuki
J. Am. Chem. Soc. 2004, 126, 5034-5035.
[DOI: 10.1021/ja049336p]
4) π-Extended o-Quinoidal Tropone Derivatives: Experimental and Theoretical Studies of Naphtho[2,3-c]tropone and Anthro[2,3-c]tropone.
M. Ohkita, K. Sano, T. Suzuki, T. Tsuji, T. Sato, H. Niino
Org. Biomol. Chem. 2004, 2, 1044-1050.
[DOI: 10.1039/b400080n]
3) Three-way-output Response System by Electric Potential: UV-Vis, CD and Fluorescence Spectral changes upon Electrolysis of the Chiral Ester of Tetracyanoanthraquinodimethane.
H. Higuchi, K. Ichioka, H. Kawai, K. Fujiwara, M. Ohkita, T. Tsuji, T. Suzuki
Tetrahedron Lett. 2004, 45, 3027-3030.
[DOI: 10.1016/j.tetlet.2004.02.110]
2) Pyrazino-tetracyanonaphthoquinodimethanes: Sterically Deformed Electron Acceptors Affording Zwitterionic Radicals.
T. Suzuki, S. Miyanari, H. Kawai, K. Fujiwara, T. Fukushima, T. Miyashi, Y. Yamashita
Tetrahedron 2004, 60, 1997-2003.
[DOI: 10.1016/j.tet.2004.01.005]
1) Preparation, Properties and X-ray Structures of 5,5'-Bi(8-aminoquinoxalyl)s: Novel Wurster-type Electron Donors with a Heterobiaryl skeleton.
T. Suzuki, M. Saito, H. Kawai, K. Fujiwara, T. Tsuji
Tetrahedron Lett. 2004, 45, 329-333.
[DOI: 10.1016/j.tetlet.2003.10.151]
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