Chisso Corporation

Other

Chisso Petrochemical Corporation

Jnc Corporation

Shuichi Matsui

Etsuo Nakagawa

Kazutoshi Miyazawa

Hiroyuki Takeuchi

Tomoyuki Kondo

Fusayuki Takeshita

Yasuyuki Goto

Yasuhiro Kubo

Yasuko Sekiguchi

Yasuhiro Haseba

Atsuko Fujita

Takashi Kato

Shinichi Sawada

Norihisa Hachiya

Koichi Shibata

Yasusuke Hisatsune

Noriyuki Ohnishi

Yasuyuki Koizumi

Yuichi Onji

Tomoyuki Kondou

Tugumiti Andou

Makoto Ushioda

Yoshitaka Tomi

Norio Tamura

Katsuhiko Kobayashi

Kouki Sagou

Yasuyuki Sasada

Keiji Kimura

Noriyuki Onishi

Henry Bernhardt

Katsuyuki Kawano

Kouji Koga

Hiroyuki Sato

Takashi Katoh

Hitoshi Yano

Yasuo Urata

Mayumi Furuya

Hiroyuki Tekeuchi

Shunji Oshima

Kouichi Shibata

Tsugumichi Ando

Koji Koga

Naoko Ota

Yoshitaka Yagi

Ryousuke Nishibata

Keiichi Kodaki

An aldehyde derivative represented by the general formula (2) is reacted with ketene in the presence of a Lewis acid catalyst to produce a novel 2-oxetanone derivative (1), which is then purified to a 2-oxetanone derivative having a high trans-isomer purity, and then converted to a vinyl derivative (3) through decarboxylation reaction. 

2-oxetanone derivative and process for production thereof

A liquid crystal (LC) compound having generally required physical properties, low viscosity, proper optical anisotropy, proper dielectric anisotropy and good compatibility with other LC compounds is described. An LC composition including the compound and an LCD device including the composition are also described. The compound is expressed by formula (1a): wherein the ring Aand the ring Aare independently 1,4-phenylene, pyridine-2,5-diyl, pyrimidine-2,5-diyl or naphthalene-2,6-diyl, in which any hydrogen can be replaced by halogen; Z, Zand Zare independently a single bond, &#x2014;(CH)&#x2014;, &#x2014;(CH)&#x2014;, &#x2014;CH&#x2550;CH&#x2014;, &#x2014;C&#x2261;C&#x2014;, &#x2014;CFO&#x2014;, &#x2014;OCF&#x2014;, &#x2014;COO&#x2014; or &#x2014;OCO&#x2014;; X, X, X, X, Xand Xare independently hydrogen or fluorine; Y is &#x2014;OCHF, &#x2014;OCHF, &#x2014;OCF, &#x2014;SCHF, &#x2014;SCHF, &#x2014;SCF, &#x2014;CHF, &#x2014;CHF, &#x2014;CF, fluorine or chlorine; Land Lare independently hydrogen or fluorine; and 'l' and 'm' are independently equal to 0 or 1.

Naphthalene compound with terminal hydrogen, liquid crystal composition including the compound, and LCD device including the liquid crystal composition

A compound represented by the following formula (1), a composition comprising the composition and an element comprising the composition: Ra is alkyl having 1 to 15 carbons and so forth; A, Aand Aare 1,4-cyclohexylene and so forth; Z, Zand Zare a single bond and so forth; n and m are 0 or 1; and phenyl having (F)is phenyl, 2-fluorophenyl and so forth.

Liquid crystal compound having hydrogen as a terminal group, composition comprising the compound, and liquid crystal display element comprising the composition

Liquid crystalline compounds having a large negative &#x394;&#x3b5; low viscosity, a large K/Kvalue, a small &#x394;&#x3b5;/&#x394;&#x22a5; and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.

Alkenyl compound having a negative &#x394;&#x3b5; value, liquid crystal composition, and liquid crystal display device

The present invention provides a process for producing a difluoromethyl ether derivative simple and efficient process for producing the difluoromethyl ether derivative represented by Formula (1d') or a difluoromethyl ether derivative represented by Formula (1c&#x2032;):

Difluoromethyl ether derivative and process for producing the same

Liquid crystalline compounds having a large negative &Dgr;&isin; low viscosity, a large K /K value, a small &Dgr;&isin;/&Dgr;&perp; and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.

Alkenyl compound having a negative &Dgr;&egr; value, liquid crystal composition, and liquid crystal display device

Ester compounds, liquid crystal compositions and liquid crystal display devices

Difluorovinyl compound, liquid crystal composition and liquid crystal display

Fluoro-substituted alkenyl compounds, liquid crystal compositions, and liquid crystal display elements

Terphenyl derivative, liquid crystal composition and liquid crystal display device

Substituted benzene derivative, liquid crystal composition, and liquid crystal display element

2,3-difluorophenyl derivative having negative dielectric anisotropy, liquid crystal composition, and liquid crystal display device

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Chiba, Japan

Shuichi Matsui