Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Tatsuo Kawara"'
Autor:
Vladimir G. Chigrinov, V.M. Kozenkov, Hirokazu Takada, Haruyoshi Takatsu, Elena K. Prudnikova, Hidenari Akiyama, Hoi Sing Kwok, Tatsuo Kawara
Publikováno v:
Scopus-Elsevier
The synthesis and properties of azo dyes that can be used for photoaligning liquid crystals (LCs) have been investigated. The structures and the synthetic procedure for the azo dyes are presented. The photoaligning of azo dyes takes place purely due
Autor:
Sadao Takehara, Makoto Negishi, Tatsuo Kawara, Kiyofumi Takeuchi, Masashi Osawa, Tetsuo Kusumoto, Haruyoshi Takatsu, Ogawa Shinji
Publikováno v:
Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals. 364:865-872
Novel 1-fluoro- and 1,2-difluoronaphthalene derivatives were designed for active matrix LCD and were prepared through the regioselective fluorination of 6-substituted 2-naphthols. These compounds exhibited high nematic-isotropic transition temperatur
Autor:
Hirokazu Takada, Vladimir G. Chigrinov, Tatsuo Kawara, Hidenari Akiyama, Elena K. Prudnikova, Hoi Sing Kwok, Vladimir Kozenkov, Haruyoshi Takatsu
Publikováno v:
Journal of the Society for Information Display. 11:579
The photo-induced alignment of liquid crystal onto a photochemical stable azo-dye film was studied for liquid-crystal display (LCD) applications. The photo-aligning of azo dye takes place due to the pure reorientation of the molecular absorption osci
Autor:
Hirokazu Takada, Vladimir G. Chigrinov, Haruyoshi Takatsu, Vladimir Kozenkov, Tatsuo Kawara, Elena K. Prudnikova, Zhihua Ling, Hoi Sing Kwok, Hidenari Akiyama
Publikováno v:
SID Symposium Digest of Technical Papers. 33:1106
The photo-induced alignment of liquid crystal onto a photochemical stable azo dye film is studied for the liquid crystal display (LCD) applications. The photo-aligning of azo dye takes place due to the pure reorientation of the molecular absorption o
Synthesis and second-harmonic generation properties of 2-(4-nitroanilino)-1,3,5-triazine derivatives
Publikováno v:
Journal of Materials Chemistry. 4:1571
The synthesis and non-linear optical properties of a series of 2-(4-nitroanilino)-1,3,5-triazine compounds are described. The triazines show various activities in powder second-harmonic generation (SHG) depending on the structures and have absorption
Publikováno v:
Bulletin of the Chemical Society of Japan. 55:3555-3559
Primary alkyl Grignard reagents react regioselectively with diketene in the presence of cobalt(II) iodide to afford 3-methylenealkanoic acids in good yields. The synthetic utility of this reaction is demonstrated in the syntheses of terpenoids by two
Publikováno v:
Tetrahedron Letters. 22:4823-4826
A stereospecific synthesis of (R,R)-phytol uith highly stereochemioal purity in both absolute and geometrical aonfigurations uas achieved by utilizing the SNZ type ring-opening reaction of (R)-β-methyl-β-propiolactone, and the SNZ′ type ring-open
Autor:
Yasuhiro Ito, Tamotsu Fujisawa, Masatoshi Kawashima, Toshio Sato, Hirofumi Shimizu, Tatsuo Kawara
Publikováno v:
Tetrahedron Letters. 21:2181-2184
Various organocuprates react with β-propiolactones to give β-substituted propionic acids in high yields.
Autor:
Hidemi Mizutani, Hisashi Takei, Yoshimasa Fukuda, Takeo Taguchi, Takashi Mukuta, Tatsuo Kawara
Publikováno v:
Chemistry Letters. 9:1311-1314
A new method for the stereoselective synthesis of (±)-avenaciolide and its analogues via methoxycarbonyl- or anisyloxycarbonyldi-γ-lactones, which could be easily prepared by the reaction of γ-substituted α-bromobutenolides with sodium salt of me
Publikováno v:
Chemischer Informationsdienst. 14