Papers - ITO SHUNJI
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2-Hydroxytryptanthrin and 1-Formyl-2-hydroxytryptanthrin as Fluorescent Metal-ion Sensors and Near-infrared Fluorescent Labeling Reagents
J. Kawakami, Y. Kinami, M. Takahashi, and S. Ito
Transactions of the Materials Research Society of Japan (Trans. Mat. Res. Soc. Japan) 43 ( 2 ) 109 - 112 2018.4
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Molecular Transformation of 2-Methylazulenes: An Efficient and Practical Synthesis of 2-Formyl- and 2-Ethynylazulenes
T. Shoji, T. Araki, N. Iida, Y. Kobayashi, A. Ohta, R. Sekiguchi, S. Ito, S. Mori, T. Okujima, and M. Yasunami
Eur. J. Org. Chem. ( 9 ) 1145 - 1157 2018.3
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Synthesis of Azulene-substituted Benzofurans and Isocoumarins via Intramolecular Cyclization of 1-Ethynylazulenes, and their Structural and Optical Properties
T. Shoji, M. Tanaka, S. Takagaki, K. Miura, A. Ohta, R. Sekiguchi, S. Ito, S. Mori, and T. Okujima
Org. Biomol. Chem. 15 ( 3 ) 480 - 489 2018.1
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Cyanine-cyanine hybrid structure as a stabilized polyelectrochromic system: synthesis, stabilities, and redox behavior of di(1-azulenyl)methylium units connected with electron-accepting π-electron systems
S. Ito, R. Sekiguchi, A. Mizushima, K. Kudo, J. Kawakami, and T. Shoji
Arkivoc ( part ii ) 145 - 169 2017.11
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Synthesis of Azulene-substituted Tetraarylpyrroles by Reaction of 1-Azulenyl Ketones with Benzoin and Ammonium Acetate
T. Shoji, S. Takagaki, M. Tanaka, T. Araki, S. Sugiyama, R. Sekiguchi, A. Ohta, S. Ito, and T. Okujima
Heterocycles 94 ( 18 ) 1870 - 1883 2017.10
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Synthesis of 2-Amino- and 2-Arylazoazulenes via Nucleophilic Aromatic Substitution of 2-Chloroazulenes with Amines and Arylhydrazines
T. Shoji, S. Sugiyama, T. Araki, A. Ohta, R. Sekiguchi, S. Ito, S. Mori, T. Okujima, and M. Yasunami
Org. Biomol. Chem. 15 ( 18 ) 3917 - 3923 2017.5
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Synthesis of 2-Aminofurans by Sequential [2 + 2] Cycloaddition–Nucleophilic Addition of 2-Propyn-1-ols with Tetracyanoethylene and Amine-Induced Transformation to 6-Aminopentafulvenes
T. Shoji, D. Nagai, M. Tanaka, T. Araki, A. Ohta, R. Sekiguchi, S. Ito, S. Mori, and T. Okujima
Chem. Eur. J. 23 ( 21 ) 5126 - 5136 2017.4
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Synthesis of Azulene-substituted Benzofurans and Isocoumarins via Intramolecular Cyclization of 1-Ethynylazulenes
T. Shoji, M. Tanaka, S. Takagaki, K. Miura, A. Ohta, R. Sekiguchi, S. Ito, S. Mori, and T. Okujima
Org. Biomol. Chem. 15 ( 18 ) 3917 - 3923 2017.4
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Synthesis and Electrochemical Properties of Azulene-substituted Tetracyanobutadiene and Dicyanoquinodimethane Chromophores Connected with Naphthalene Cores
T. Shoji, M. Maruyama, A. Maruyama, D. Nagai, M. Tanaka, R. Sekiguchi, S. Ito, and T. Okujima
Heterocycles 95 ( 1 ) 353 - 369 2017.4
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Synthesis of 2-Azulenyltetrathiafulvalenes by Palladium-Catalyzed Direct Arylation of 2-Chloroazulenes with Tetrathiafulvalene and Their Optical and Electrochemical Properties
T. Shoji, T. Araki, S. Sugiyama, A. Ohta, R. Sekiguchi, S. Ito, T. Okujima, and K. Toyota
J. Org. Chem. 82 ( 3 ) 1657 - 1665 2017.2
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Preparation of a Cyclic Polyphenylene Array for a Chiral-Type Carbon Nanotube Segment
R. Sekiguchi, S. Kudo, J. Kawakami, A. Sakai, H. Ikeda, H. Nakamura, K. Ohta, and S. Ito
Bull. Chem. Soc. Jpn. 89 ( 10 ) 1260 - 1275 2016.10
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Synthesis of 1,2’-Biazulenes by Palladium-Catalyzed Unusual Homocoupling Reaction of 1-Haloazulenes in the Presence of Ferrocene
T. Shoji, K. Miyashita, T. Araki, M. Tanaka, A. Maruyama, R. Sekiguchi, S. Ito, T. Okujima
Synthesis 48 ( 15 ) 2438 - 2448 2016.8
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Synthesis of 1-azulenyl ketones by Brønsted acid mediated hydration of 1-azulenylalkynes
T. Shoji, M. Tanaka, T. Araki, S. Takagaki, R. Sekiguchi, and S. Ito
RSC Adv. 6 ( 82 ) 78303 - 78306 2016.8
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Spectral Characteristics of Highly Fluorescent 2-(N,N-dimethylamino)tryptanthrin
J. Kawakami, T. Kadowaki, M. Ikeda, Y. Habata, S. Ito, and H. Kitahara
Transactions of the Materials Research Society of Japan (Trans. MRS-J) 41 ( 2 ) 143 - 146 2016.6
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Naphthalene Ring-Fused 2-Aminotryptanthrin as a Fluorescent Chemosensor for Al3+
J. Kawakami, A. Tsuiki, S. Ito, and H. Kitahara
Transactions of the Materials Research Society of Japan (Trans. MRS-J) 41 ( 1 ) 131 - 133 2016.2
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Photophysical Properties of the 2-Hydroxytryptanthrin and its Sodium Salt as Near-infrared Dyes for Fluorescent Imaging
J. Kawakami, M. Takahashi, S. Ito, and H. Kitahara
Anal. Sci. 32 ( 2 ) 251 - 253 2016.2
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Synthesis and Properties of (3-Phenyl-1-azulenyl)tetracyanobetadienes and Tris(aryltetracyanobetadiene)s Connected with 1,3,5-Tri(1-azulenyl)benzene Core
T. Shoji, A. Maruyama, M. Tanaka, D. Nagai, E. Shimomura, K. Fujimori, S. Ito, T. Okujima, K. Toyota, and M. Yasunami
ChemistrySelect 1 ( 1 ) 49 - 56 2016.1
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Synthesis of 2- and 6-Thienylazulenes by Palladium-catalyzed Direct Arylation of 2- and 6-Haloazulenes with Thiophene Derivatives
T. Shoji, A. Maruyama, S. Ito, and T. Okujima
Org. Biomol. Chem. 13 ( 40 ) 10191 - 10197 2015.10
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Synthesis, Properties, and Redox Behavior of Ferrocenyl-1,1,4,4-tetracyano-1,3-butadienes Connected by Arylamine and Azobenzene Spacers
T. Shoji, N. Kamata, A. Maruyama, S. Ito, and T. Okujima
Bull. Chem. Soc. Jpn. 88 ( 9 ) 1338 - 1346 2015.9
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Preparation of a Cyclic Polyphenylene Array for a Zigzag-Type Carbon Nanotube Segment
R. Sekiguchi, K. Takahashi, J. Kawakami, A. Sakai, H. Ikeda, A. Ishikawa, K. Ohta, and S. Ito
J. Org. Chem. 80 ( 10 ) 5092 - 5110 2015.5