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Dive into the research topics where Hidetaka Hiyoshi is active.

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Featured researches published by Hidetaka Hiyoshi.


Journal of Chemical Research-s | 2010

Synthesis and fluorescence emission properties of 1,3,6,8-tetrakis(9 H -fluoren-2-yl)pyrene derivative

Jian-Yong Hu; Hidetaka Hiyoshi; Jung-Hee Do; Takehiko Yamato

A novel pyrene-based highly pure blue fluorescent and stable molecule, 1,3,6,8-tetrakis[9,9-bis(3-methylbutyl)-9H-fluoren-2-yl]pyrene, was successfully synthesised via a Pd-catalysed Suzuki coupling reaction of 1,3,6,8-tetrabromo-pyrene with 2-[9,9-bis(3-methylbutyl)-9H-fluoren-2-yl]-4,4,5,5-tetramethyl[1,3,2]dioxaborolane. The photoproperties of this pyrene were examined in detail and these data indicated its potential application as blue-emitting materials in organic light-emitting diodes.


Archive | 2005

Substituted sym-triindole

Hidetaka Hiyoshi; Hironobu Kumagai; Hideo Ooi


Heterocycles | 2007

Donor-π-acceptor type symmetric cyclic triindoles: synthesis and properties

Hidetaka Hiyoshi; Hironobu Kumagai; Hideo Ooi; Takaaki Sonoda; Shuntaro Mataka


Heterocycles | 2006

Synthesis of Novel Symmetric Cyclic Indole-tetramers

Hidetaka Hiyoshi; Takaaki Sonoda; Shuntaro Mataka


Heterocycles | 2011

A facile synthesis of 2, 5-disubstituted indole derivatives as new fluorescent dyes

Hidetaka Hiyoshi; Jung Hee Do; Xing Feng; Takehiko Yamato; Taisuke Matsumoto


Archive | 2007

Process for production of substituted aniline compound

Hidetaka Hiyoshi; Mahito Ogawa


Heterocycles | 2017

One-Pot Synthesis of Imidazo[1,5-c]pyrimidine Derivatives from a 4,6-Dichloropyrimidine Derivative and Benzyl Isocyanides

Kazuhiro Kobayashi; Daiki Fujiwara; Yuuho Shigemura; Hidetaka Hiyoshi; Kazuto Umezu


Heterocycles | 2017

Synthesis of 7,8-Dihydropyrido[2,3-d]pyrimidine Derivatives from 4,6-Dichloro-2-(methylsulfanyl)pyrimidine

Kazuhiro Kobayashi; Ippei Nozawa; Hiroaki Utsumi; Takuma Ueyama; Hidetaka Hiyoshi; Kazuto Umezu


Chemical Physics Letters | 2008

Precise determination of the first hyperpolarizability of a fluorescent triindole derivative with dicyanovinyl groups by the deconvolution method

Shigeru Ikeda; Hironobu Kumagai; Hideo Ooi; Koji Konishi; Hidetaka Hiyoshi; Tatsuo Wada


Heterocycles | 2017

Synthesis of 8,9-Dihydropyrimido[4,5-e][1,4]oxazepin-7(5H)-ones by the Reaction of 1-(4-Chloropyrimidin-5-yl)alkan-1-ols with N-Alkylglycines

Kazuhiro Kobayashi; Takashi Nogi; Yuka Tsunomori; Hidetaka Hiyoshi; Kazuto Umezu

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Tatsuo Wada

Tokyo University of Science

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