Liquid crystal naphtalene compounds, represented by the following formula (1) are disclosed.
R-Z-A-NAP-Z′-R′ (1)
In the formula (1), R is an alkyl group containing 1 to 18 carbon atoms; R′ is an alkyl group containing 1 to 21 carbon atoms; NAP represents 2,6-naphthylene group; A, Z and Z′ are as follows: 1) A is Pyr> and (a) Z is - or # and Z′ is O, or (b) Z is - and Z′ is COO; 2) if A is Pym>, (a) Z is - and Z′ is O, or (b) Z is O and Z′ is -, O or #; 3) A is FPhF and (a) Z is - or O and Z′ is -, O or COO, (b) Z is OCO and Z′ is - or O, or (c) Z is # and Z′ is O; 4) A is PhF and (a) Z is - or # and Z′ is O, (b) Z is O and Z′ is -, or (c) Z is - and Z′ is COO; 5) A is FPh and (a) Z is O and Z′ is-, (b) Z is -, O, # or OCO and Z′ is O, or (c) Z is O and Z′ is COO; 6) A is
液晶
萘化合物的
化学式如下所示:R-Z-A-NAP-Z′-R′。在这个
化学式中,R是含有1到18个碳原子的烷基基团;R′是含有1到21个碳原子的烷基基团;NAP代表2,6-
萘基团;A、Z和Z′的具体定义如下:
1)如果A是Pyr,(a) Z是-或#,Z′是O;或者(b) Z是-,Z′是COO;
2)如果A是Pym,(a) Z是-,Z′是O;或者(b) Z是O,Z′是-、O或#;
3)如果A是FPhF,(a) Z是-或O,Z′是-、O或COO;(b) Z是OCO,Z′是-或O;或者(c) Z是#,Z′是O;
4)如果A是PhF,(a) Z是-或#,Z′是O;(b) Z是O,Z′是-;或者(c) Z是-,Z′是COO;
5)如果A是FPh,(a) Z是O,Z′是-;(b) Z是-、O、#或OCO,Z′是O;或者(c) Z是O,Z′是COO;
6)如果A是
Liquid crystal compounds
申请人:Showa Shell Sekiyu Kabushiki Kaisha
公开号:US05310500A1
公开(公告)日:1994-05-10
Antiferroelectric liquid crystal compounds are provided which have the formula ##STR1## wherein R.sub.1 represents an alkyl group having 5-18 carbon atoms, R.sub.2 represents an alkyl group having 6-16 carbon atoms, Y represents a group ##STR2## and A represents a group ##STR3##
提供具有以下式子的反
铁电液晶化合物:##STR1## 其中R.sub.1代表具有5-18个碳原子的烷基,R.sub.2代表具有6-16个碳原子的烷基,Y代表羟基和氧原子的组合,A代表苯环和氧原子的组合。
Naphthalene compound, and liquid crystal composition and liquid crystal element using the same
申请人:MITSUI TOATSU CHEMICALS, INC.
公开号:EP0757032A2
公开(公告)日:1997-02-05
Provided is a naphthalene compound represented by the following Formula (1) :
wherein R1 and R2 each represent a linear or branched alkyl group having 1 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms which may be substituted with halogen atoms and have no asymmetric carbon atoms; A represents any of the groups represented by the following formulas:
(wherein X1, X2, X3 and X4 each represent a hydrogen atom or a halogen atom); and z represents 0 or 1. The addition of this naphthalene compound to a liquid crystal composition makes it possible to improve various characteristics such as the high speed response property of the liquid crystal composition and the temperature dependency of the response time. The above naphthalene compound is useful as a liquid crystal material for liquid crystal compositions, particularly ferroelectric liquid crystal compositions.
本发明提供了一种由下式(1)表示的
萘化合物:
其中 R1 和 R2 分别代表具有 1 至 20 个碳原子的直链或支链烷基、具有 2 至 20 个碳原子的烷氧基烷基或具有 2 至 20 个碳原子的烯基,它们可被卤素原子取代且没有不对称碳原子;A 代表下列式子所代表的任何基团:
(其中 X1、X2、X3 和 X4 各代表一个氢原子或一个卤素原子);以及 z 代表 0 或 1。在液晶组合物中加入这种
萘化合物可以改善各种特性,如液晶组合物的高速响应特性和响应时间的温度依赖性。上述
萘化合物可用作液晶组合物,特别是
铁电液晶组合物的液晶材料。
Naphtahlene compound, and liquid crystal composition and liquid crystal element using the same
申请人:Mitsui Chemicals, Inc.
公开号:EP1120400A1
公开(公告)日:2001-08-01
Provided is a naphthalene compound represented by the following Formula (1):
wherein R1 and R2 each represent a linear or branched alkyl group having 1 to 20 carbon atoms, an alkoxyalkyl group having 2 to 20 carbon atoms or an alkenyl group having 2 to 20 carbon atoms which may be substituted with halogen atoms and have no asymmetric carbon atoms; provided that at least one of R1 and R2 is an alkoxyalkyl group represented by Formula (III):
-CdH2dO(CeH2eO)fCgH2g+1 (III)
(wherein d represents a natural number of 1 to 10; e represents a natural number of 1 to 10; f represents a natural number of 0 to 5; and g represents a natural number of 1 to 12, provided that d + e x f + g ≤ 20); A represents any of the groups represented by the following formulas:
(wherein X1, X2, X3 and X4 each represent a hydrogen atom or a halogen atom); and z represents 0 or 1. The addition of this naphthalene compound to a liquid crystal composition makes it possible to improve various characteristics such as the high speed response property of the liquid crystal composition and the temperature dependency of the response time. The above naphthalene compound is useful as a liquid crystal material for liquid crystal compositions, particularly ferroelectric liquid crystal compositions.
本发明提供了由下式(1)表示的
萘化合物:
其中 R1 和 R2 分别代表具有 1 至 20 个碳原子的直链或支链烷基、具有 2 至 20 个碳原子的烷氧基烷基或具有 2 至 20 个碳原子的烯基,它们可被卤素原子取代且不具有不对称碳原子;条件是 R1 和 R2 中至少有一个是式 (III) 所代表的烷氧基烷基:
-CdH2dO(CeH2eO)fCgH2g+1 (III)
(其中 d 代表 1 至 10 的自然数;e 代表 1 至 10 的自然数;f 代表 0 至 5 的自然数;g 代表 1 至 12 的自然数,条件是 d + e x f + g ≤ 20);A 代表下式所代表的任何基团:
(其中 X1、X2、X3 和 X4 各代表一个氢原子或一个卤素原子);以及 z 代表 0 或 1。在液晶组合物中加入这种
萘化合物可以改善各种特性,如液晶组合物的高速响应特性和响应时间的温度依赖性。上述
萘化合物可用作液晶组合物,特别是
铁电液晶组合物的液晶材料。
US5310500A
申请人:——
公开号:US5310500A
公开(公告)日:1994-05-10
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