Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Katsuyoshi Shibata"'
Autor:
Masaki Matsui, Katsuyoshi Shibata
Publikováno v:
Journal of the Japan Society of Colour Material. 75:61-65
3-Substituted 5-alkoxy-2-aryl-2H-indazoles were synthesized in low to moderate yields by the TiO 2 -photocatalyzed reaction (λ > 280 nm) of 4-alkoxyazobenzenes in alcohols. The formation of hydroxyalkyl radicals and the presence of an electron-donat
Autor:
Kazumasa Funabiki, Wataru Hashimoto, Katsuyoshi Shibata, Akie Isomura, Y. Yamaguchi, Kei Matsunaga, Masaki Matsui
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 1. :2578-2582
The reactions of trifluoromethyl ketones with enamines or imines are described. The reaction of trifluoroacetone with enamines or imines followed by hydrolysis gave the corresponding β-hydroxy-β-trifluoromethyl-β-methyl ketones in good yields. The
Publikováno v:
Bulletin of the Chemical Society of Japan. 74:1463-1466
(R)-4-(2-Hydroxy-1-phenylethylamino)-7H-benzo[de]benzoimidazo[2,1-a]isoquinolin-7-one was used as a fluorescent labeling reagent for Naproxen. The excitation and emission maxima of this reagent were observed at λ 453 and 508 nm in acetonitrile, resp
Publikováno v:
Bulletin of the Chemical Society of Japan. 74:549-554
Chiral N-substituted perylene-3,4-dicarboximides have been synthesized. These optically pure compounds were sufficiently soluble in acetonitrile used as fluorescent labeling reagents. Their excitation and emission maxima were observed at λ 500 and 5
Autor:
Katsuyoshi Shibata, Masaki Matsui
Publikováno v:
Journal of the Japan Society of Colour Material. 74:607-611
TiO 2 -photocatalyzed reaction (λ > 280 nm) of azobenzenes in alcohols gave hydrazobenzenes, 1,2,4-triazolidines, and 2-phenylindazoles. The product distribution depended on the reaction conditions and the kinds of substrates. Those of unsubstituted
Autor:
Toshiyuki Tanaka, Hisayoshi Shiozaki, Katsuyoshi Shibata, Kazumasa Funabiki, Yoshiaki Shirataki, Masaki Matsui, Ken-ichi Nakaya
Publikováno v:
Bulletin of the Chemical Society of Japan. 74:173-177
4-(2-Aminoethylamino)-7H-benz[de]benzimidazo[2,1-a]isoquinoline-7-one, synthesized and identified by a HMBC study, can be used as a fluorescent labeling reagent for carnitine. The excitation and emission maxima in acetonitrile were observed at λ 454
Autor:
Kazumasa Funabiki, Sung-Hoon Kim, Horst Hartmann, Katsuyoshi Shibata, Jae Joon Kim, Masaki Matsui, Hiroshige Muramatsu, Hisayoshi Shiozaki
Publikováno v:
Journal of the Chemical Society, Perkin Transactions 2. :379-387
(Dialkylamino)thiazole dimers act as very strong electron-donating coupling components in azo dyes, the first and second UV–VIS absorption bands of which were observed at λ = 568–737 (e = 24000–88000) and 404–475 (e = 9200–52000) nm in dic
Autor:
Hiroshige Muramatsu, Kazumasa Funabiki, Masaki Matsui, Yasuto Ogawa, Katsuyoshi Shibata, Akihumi Sakao
Publikováno v:
Journal of the Japan Society of Colour Material. 73:120-123
Publikováno v:
ResearcherID
4-(2-Aminoethylamino)-N-(4-methoxyphenyl)-1,8-naphthalimide can be used as a fluorescent labeling reagent for carnitine. The excitation and emission maxima of this reagent were observed at 436 and 524 nm in acetonitrile, respectively and the reagent
Autor:
Misa Kim, Masaki Matsui, Kazuo Tai, Hiroshige Muramatsu, Katsuyoshi Shibata, Kazuo Hirota, Kazumi Nakatsu, Kazumasa Funabiki, Michinori Tsuge, Hisayoshi Shiozaki, Masahiro Hosoda
Publikováno v:
ResearcherID
1,2-Bis[4-[4-[ N -ethyl- N -(2-hydroxyethyl)amino]phenylazo]phenylthio]perfluorocyclopentene, having two independent intramolecular push-pull chromophores in a molecule, showed the highest second-order nonlinear coefficient ( d 33 ) among the cyclobu