Title:
FLUOROCYCLOHEXENE DERIVATIVE
Document Type and Number:
Japanese Patent JP3151929
Kind Code:
B2
Abstract:
PURPOSE: To provide a new fluorocyclohexene derivative applicable to liquid crystal display devices with wide angle of field of view because of being capable of obtaining a liquid crystal composition with reduced refractive index anisotropy which can be driven at low voltages through small addition to a parent liquid crystal.
CONSTITUTION: A compound of formula I (R1 is 1-16C alkyl or alkoxyalkyl; ring A is 2-fluoro-1-cyclohexene-1,4-diyl; ring B is 1,4-phenylene or trans-1,4- cyclohexylene; X is F or H; R2 is F, Cl, CN, 1-16C alkyl, alkoxyalkyl or alkoxyl; where, any H atom(s) in R2 may be substituted by F atom(s)), e.g. 2-fluoro-1-(4- propylphenyl)-4-propylcyclohexene. Of the present compounds, a compound of formula II can be obtained by hydroboration of a compound of formula III into a compound of formula IV, which is then oxidized into a compound of formula V (mixture of cis- and trans-modifications) which is, in turn, fluorinated with a fluorinating agent.
More Like This:
| JP5550951 | Liquid crystal medium |
| WO/2014/141438 | LIQUID CRYSTAL DISPLAY DEVICE |
Inventors:
Sadao Takehara
Shinji Ogawa
Kiyofumi Takeuchi
Haruyoshi Takatsu
Tamejiro Hiyama
Tetsuo Kusumoto
Manabu Kuroboshi
Shinji Ogawa
Kiyofumi Takeuchi
Haruyoshi Takatsu
Tamejiro Hiyama
Tetsuo Kusumoto
Manabu Kuroboshi
Application Number:
JP12346692A
Publication Date:
April 03, 2001
Filing Date:
May 15, 1992
Export Citation:
Assignee:
Dainippon Ink and Chemicals Co., Ltd.
International Classes:
C09K19/30; C07C23/18; C07C25/18; C07C255/46; C07C255/49; C07C255/54; C09K19/42; G02F1/13; (IPC1-7): C07C23/18; C07C255/46; C09K19/30
Attorney, Agent or Firm:
Victory Takahashi