Papers - ITO SHUNJI
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Synthesis, Reactivity, and Properties of Benz[a]azulenes via the [8 + 2] Cycloaddition of 2H-Cyclohepta[b]furan-2-ones with an Enamine
T. Shoji, A. Yamazaki, R. Katoh, K. Shimamura, R. Sakai, M. Yasunami, T. Okujima, and S. Ito
J. Org. Chem. 87 ( 9 ) 5827 - 5845 2022.5
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Azulene-Substituted Donor-Acceptor Polymethines and 1,6’-Bi-, 1,6’;3,6’’-Ter-, and Quinqueazulenes via Zincke Salts: Synthesis, and Structural, Optical, and Electrochemical Properties
T. Shoji, A. Yamazaki, Y. Ariga, M. Uda, D. Ando, N. Sasahara, N. Kai, and S. Ito
ChemPlusChem 86 ( 6 ) 946 - 966 2021.6
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Solid-State Fluorescence of Tryptanthrin Analogs
J. Kawakami, C. Osanai, S. Ohta, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 46 ( 1 ) 45 - 48 2021.3
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Synthesis, Photophysical and Electrochemical Properties of 1-, 2-, and 6-(2-Benzofuryl)azulenes
T. Shoji, Y. Ariga, A. Yamazaki, M. Uda, T. Nagasawa, and S. Ito
Bull. Chem. Soc. Jpn. 94 ( 3 ) 1000 - 1009 2021.3
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Synthesis of Thiophene-fused Heptalenes by Cycloaddition of Azulenothiophenes with Dimethyl Acetylenedicarboxylate
T. Shoji, K. Miura, Y. Ariga, A. Yamazaki, S. Ito, and M. Yasunami
Sci. Rep. 10 12477 2020.7
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Synthesis of Phthalimides Cross-Conjugated with An Azulene Ring, and their Structural, Optical and Electrochemical Properties
T. Shoji, N. Iida, A. Yamazaki, Y. Ariga, A. Ohta, R. Sekiguchi, T. Nagahata, T. Nagasawa, and S. Ito
Org. Biomol. Chem. 18 ( 12 ) 2274 - 2282 2020.3
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Photophysical Properties of 2-Hydroxytryptanthrin Analog as a Near-Infrared Dye for Fluorescent Imaging
J. Kawakami, C. Osanai, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 45 ( 1 ) 19 - 22 2020.2
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Molecular Transformation to Pyrroles, Pentafulvenes, and Pyrrolopyridines by [2 + 2] Cycloaddition of Propargylamines with Tetracyanoethylene
T. Shoji, S. Takagaki, Y. Ariga, A. Yamazaki, M. Takeuchi, A. Ohta, R. Sekiguchi, S. Mori, T. Okujima, and S. Ito
Chem. Eur. J. 2020.2
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Direct synthesis of 2-arylazulenes by [8 + 2] cycloaddition of 2H-cyclohepta[b]furan-2-ones with silyl enol ethers
T. Shoji, S. Sugiyama, Y. Kobayashi, A. Yamazaki, Y. Ariga, R. Kato, H. Wakui, M. Yasunami, and S. Ito
Chem. Commun. 56 ( 10 ) 1485 - 1488 2020.2
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Aggregation-induced Emission Properties of 2-(N,N-diphenylamino)tryptanthrin
J. Kawakami, M. Harada, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 44 ( 4 ) 153 - 156 2019.8
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Synthesis of Azuleno[2,1-b]thiophenes by Cycloaddition of Azulenylalkynes with Elemental Sulfur and their Structural, Optical and Electrochemical Properties
T. Shoji, K. Miura, A. Ohta, R. Sekiguchi, S. Ito, Y. Endo, T. Nagahata, S. Mori, and T. Okujima
Org. Chem. Front. 6 ( 15 ) 2801 - 2811 2019.8
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Preparation of a Large-sized Highly Flexible Carbon Nanohoop
Y. Nakagawa, R. Sekiguchi, J. Kawakami, and S. Ito
Org. Biomol. Chem. 17 ( 28 ) 6843 - 6853 2019.7
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Benzo-fused BODIPY Derivative as a Fluorescent Chemosensor for Fe3+, Cu2+, and Al3+
J. Kawakami, Y. Sasaki, K. Yanase, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 44 ( 2 ) 69 - 73 2019.4
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Synthesis of 6‑Amino- and 6‑Arylazoazulenes via Nucleophilic Aromatic Substitution and Their Reactivity and Properties
T. Shoji, S. Sugiyama, M. Takeuchi, A. Ohta, R. Sekiguchi, S. Ito, T. Yatsu, T. Okujima, and M. Yasunami
J. Org. Chem. 84 ( 3 ) 1257 - 1275 2019.2
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Synthesis of Azulenophthalimides by Phosphinemediated Annulation of 1,2-Diformylazulenes with Maleimides
T. Shoji, T. Araki, N. Iida, K. Miura, A. Ohta, R. Sekiguchi, S. Ito, and T. Okujima
Org. Chem. Front. 6 ( 2 ) 195 - 204 2019.1
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Synthesis and Photophysical Properties of Azuleno[1’,2’:4,5]pyrrolo[2,1-b]quinazoline-6,14-diones: Azulene Analogs of Tryptanthrin
C. Kogawa, A. Fujiwara, R. Sekiguchi, T. Shoji, J. Kawakami, M. Okazaki, and S. Ito
Tetrahedron 74 ( 49 ) 7018 - 7029 2018.12
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Fluorescence Emission Mechanism of Three N,N-dimethylaminotryptanthrins by Density Functional Theory Calculations
J. Kawakami, C. Osanai, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 43 ( 5 ) 319 - 323 2018.9
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Synthesis of 2-Methyl-1-azulenyl Tetracyanobutadienes and Dicyanoquinodimethanes: Substituent Effect of 2-Methyl Moiety on Azulene Ring toward the Optical and Electrochemical Properties
T. Shoji, K. Miura, T. Araki, A. Maruyama, A. Ohta, R. Sekiguchi, S. Ito, and T. Okujima
J. Org. Chem. 83 ( 12 ) 6690 - 6705 2018.6
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2-Hydroxy-1-((2-(pyridin-2-yl)hydrazono)methyl)tryptanthrin as a Fluorescent Chemosensor for Metal Ions
J. Kawakami, M. Sasagawa, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 43 ( 3 ) 209 - 212 2018.6
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Synthesis of 2-Amino-1-cyanoazulenes: Substituent Effect on 2H-Cyclohepta[b]furan-2-ones toward the Reaction with Malononitrile
T. Shoji, S. Sugiyama, K. Miura, A. Ohta, R. Sekiguchi, S. Ito, S. Mori, and T. Okujima
Heterocycles 97 ( 2 ) 1068 - 1081 2018.4