公开(公告)号：EP0805134B1

公开(公告)日：2000-08-30

申请号：EP96900716.0

申请日：1996-01-19

申请人： CHISSO CORPORATION

发明人： ONISHI, Noriyuki ,  SHIBATA, Koichi ,  HASEBA, Yasuhiro ,  KOIZUMI, Yasuyuki ,  MATSUI, Shuichi ,  MIYAZAWA, Kazutoshi ,  SEKIGUCHI, Yasuko ,  NAKAGAWA, Etsuo

IPC分类号： C07C13/28 ,  C07C15/50 ,  C07C22/00 ,  C07C23/18 ,  C07C25/24 ,  C07C43/188 ,  C07C43/192 ,  C07C43/215 ,  C07C43/225 ,  C07C69/773 ,  C09K19/30 ,  C09K19/20 ,  C09K19/18 ,  C07D239/26

CPC分类号： C07C43/215 ,  C07C13/28 ,  C07C43/168 ,  C07C43/176 ,  C07C43/225 ,  C07C69/75 ,  C07C69/753 ,  C07C69/76 ,  C07C255/50 ,  C07C255/55 ,  C07C2601/14 ,  C09K19/04 ,  C09K19/18 ,  C09K19/20 ,  C09K19/2007 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3048 ,  C09K19/3068 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  Y10T428/10

公开(公告)号：EP0805134A1

公开(公告)日：1997-11-05

申请号：EP96900716.0

申请日：1996-01-19

申请人： CHISSO CORPORATION

发明人： ONISHI, Noriyuki ,  SHIBATA, Koichi ,  HASEBA, Yasuhiro ,  KOIZUMI, Yasuyuki ,  MATSUI, Shuichi ,  MIYAZAWA, Kazutoshi ,  SEKIGUCHI, Yasuko ,  NAKAGAWA, Etsuo

IPC分类号： C07C13/28 ,  C07C15/50 ,  C07C22/00 ,  C07C23/18 ,  C07C25/24 ,  C07C43/188 ,  C07C43/192 ,  C07C43/215 ,  C07C43/225 ,  C07C69/773 ,  C07C255/45

CPC分类号： C07C43/215 ,  C07C13/28 ,  C07C43/168 ,  C07C43/176 ,  C07C43/225 ,  C07C69/75 ,  C07C69/753 ,  C07C69/76 ,  C07C255/50 ,  C07C255/55 ,  C07C2601/14 ,  C09K19/04 ,  C09K19/18 ,  C09K19/20 ,  C09K19/2007 ,  C09K19/3001 ,  C09K19/3003 ,  C09K19/3048 ,  C09K19/3068 ,  C09K19/42 ,  C09K19/44 ,  C09K19/46 ,  C09K2019/0448 ,  C09K2019/0451 ,  Y10T428/10

摘要： The present invention is to provide a liquid crystalline compound which has a large ratio of elastic constants and low viscosity, is excellent in miscibility, and is even chemically stable, and to provide a liquid crystal composition containing the liquid crystalline compound.
The present invention is concerned with a liquid crystalline compound expressed by general formula (1)
wherein R 1 represents cyano group, halogen atom, or a straight or branched alkyl group or halogenated alkyl group having 1 to 20 carbon atoms, one or not-adjacent two CH 2 groups in the alkyl group or halogenated alkyl group may be replaced by oxygen atom or -CH=CH- group; R 2 and R 2 ' represent hydrogen atom, halogen atom, or an alkyl group having 1 to 9 carbon atoms; X 1 , X 2 , and X 3 independently represent -CH 2 CH 2 -, -CO-O-, -O-CO-, -CH=CH-, -C≡C-, -(CH 2 ) 4 -, -CF 2 O-, -OCF 2 -, -CH 2 O-, -OCH 2 -, or a covalent bond; rings A, B, C, and D independently represent 1,4-phenylene ring, trans-1,4-cyclohexylene ring, bicyclo[1,1,0]butane ring, bicyclo[1,1,1]pentane ring, bicyclo[3,2,2]octane ring, cyclobutane ring, or spiro[3,3]heptane ring, respectively, hydrogen atom in these rings may be replaced by halogen atom and carbon atom in these rings may be replaced by nitrogen atom or oxygen atom; ℓ, m, and o are independently 0 or 1, n is an integer of 0 to 3, and p is an integer of 1 to 5.
Liquid crystal composition having excellent physical properties, that is, steep threshold characteristics and high response speed can be obtained by providing a novel liquid crystalline compound having a large ratio of elastic constants and low viscosity, or by including the liquid crystalline compound in a liquid crystal composition.