JPS6127931A - Trans-ethylene derivative compound and liquid crystal composition containing same - Google Patents

Trans-ethylene derivative compound and liquid crystal composition containing same

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Publication number
JPS6127931A
JPS6127931A JP14605184A JP14605184A JPS6127931A JP S6127931 A JPS6127931 A JP S6127931A JP 14605184 A JP14605184 A JP 14605184A JP 14605184 A JP14605184 A JP 14605184A JP S6127931 A JPS6127931 A JP S6127931A
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JP
Japan
Prior art keywords
compound
formula
liquid crystal
trans
crystal composition
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP14605184A
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Japanese (ja)
Other versions
JPH0568520B2 (en
Inventor
Tomonori Korishima
友紀 郡島
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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Priority to JP14605184A priority Critical patent/JPS6127931A/en
Publication of JPS6127931A publication Critical patent/JPS6127931A/en
Publication of JPH0568520B2 publication Critical patent/JPH0568520B2/ja
Granted legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Liquid Crystal Substances (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

NEW MATERIAL:The compound of formula I (-CH=CH- is trans-1,2-disubstituted ethylene bond; R is 1-8C alkyl; X is cyano, F or Cl). EXAMPLE:4-Chloro-4'-(trans-3''-pentenyl)biphenyl. USE:A component of a liquid crystal composition. It constitutes a liquid crystal composition having relatively high clearing point, high refractive index anisotropy and dielectric anisotropy and low viscosity, and is poured into an electrical and/or thermo-optical liquid crystal element or into a liquid crystal cell. The element or cell can be used in watches, electronic calculators, instruments, automotive meters, gaming machines, computer displays, etc. PREPARATION:The compound of formula I wherein X is Cl can be prepared by (1) reacting the compound of formula II with Br2 to obtain the compound of formula III, (2) preparing a Grignard reagent from the compound of formula IVand Mg, and (3) reacting the Grignard reagent with the compound of formula IIIin the presence of a coupling catalyst such as bis(1,2-diphenylphosphino)ethane nickel (II) chloride.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は液晶電気および/又は熱光学素子に用いられる
トランス−エチレン誘導体化合物およびそれを含有する
液晶組成物に関する。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a trans-ethylene derivative compound used in liquid crystal electrical and/or thermo-optic elements and a liquid crystal composition containing the same.

[従来の技術] 表示素子の分野において、低消費電力、高速応答の電気
および/又は熱光学素子が望まれている。液晶表示素子
は、液晶のネマチック相、スメクチック相、コレステリ
ック相の電気および/又は熱による変化を蟇阜軸に利用
したもめであり、そのような要求にかなうものとして注
目されている。
[Prior Art] In the field of display devices, electrical and/or thermo-optical devices with low power consumption and high speed response are desired. Liquid crystal display elements utilize changes in the nematic, smectic, and cholesteric phases of liquid crystals due to electricity and/or heat, and are attracting attention as devices that meet such demands.

液晶表示素子に使用される液晶材料は、単独で作動温度
範囲や動作電圧、応答性能等の点において使用に耐える
ものはなく、数種類の液晶材料を混合して使用している
現状である。
None of the liquid crystal materials used in liquid crystal display elements can withstand use alone in terms of operating temperature range, operating voltage, response performance, etc., and currently a mixture of several types of liquid crystal materials is used.

[本発明の解決しようとする問題点J 従来使用されてきた液晶混合物を用いた液晶表示素子は
高温においては作動しない、屈折率異方性(Δn)が小
さいためコントラストが充分でない、誘電率異方性が小
さいため1作動電圧が高い、粘度が大きいため応答速度
が遅いというような欠点を有していた。
[Problems to be solved by the present invention J] Liquid crystal display elements using conventionally used liquid crystal mixtures do not operate at high temperatures, have insufficient contrast due to small refractive index anisotropy (Δn), and have low dielectric constant anisotropy. It had drawbacks such as a high operating voltage due to its low polarity, and a slow response speed due to its high viscosity.

[問題を解決するための手段] 本発明は、前述の問題点を解決するためになされたもの
であり、一般式 R−C)l舗I暑ベト(I) (式中−〇H−CH−は、トランス−1,2−ジ置換エ
チレン結合を示し、Rは炭斎蔓謙〜8のアルキル基を示
し、Xはシアン基、フッ素原子及び塩素原子を示す)で
あられされるトランスルエチレン誘導化合物及び該化合
物の少なくとも1種を組成物中に1〜50wt%混合し
たことを特徴とする液晶組成物である。
[Means for Solving the Problems] The present invention has been made to solve the above-mentioned problems. - represents a trans-1,2-disubstituted ethylene bond, R represents an alkyl group of 8, and X represents a cyan group, a fluorine atom, or a chlorine atom). A liquid crystal composition characterized in that a derivative compound and at least one of the compounds are mixed in an amount of 1 to 50 wt%.

一般式(I)で示される化合物の一般名は、4−置換−
4’−(トランス−3″−フルケニル)ビフェニルであ
る。
The general name of the compound represented by general formula (I) is 4-substituted-
4'-(trans-3''-fulkenyl)biphenyl.

一般式(I)で表される化合物において、Rは炭素数1
〜8のアルキル基を示すが、炭素数が多いと一般に粘度
が高いので、炭素数は1〜5が好ましく、さらには1〜
3が好ましい。またRが分枝鎖を有するアルキル基であ
る場合に比べ、一般に該化合物を添加された液晶組成物
のクリヤリングポイントが低いので、Rは直鎖状のアル
キル基が好ましい。
In the compound represented by general formula (I), R has 1 carbon number
-8 alkyl group, but since the viscosity is generally high when the number of carbon atoms is large, the number of carbon atoms is preferably 1-5, and more preferably 1-5.
3 is preferred. Furthermore, since the clearing point of a liquid crystal composition to which the compound is added is generally lower than when R is an alkyl group having a branched chain, R is preferably a linear alkyl group.

本発明のトランス−エチレン誘導体は、それ自体受は充
分広い動作温度範囲を示さないため、1種あるいは1種
以上を他の液晶性化合物と混合して、所望の液晶温度範
囲を有す÷讐晶組成物として使用するものであり、その
場合、本発明の化合物は混合物中1〜50wtX 、さ
らに好ましくは3〜30wt$使用される。他の液晶性
化合物は、用途、要求性能等により異なるが、液晶性を
示す成分と必要に応じて添加される添加成分とからなり
、高温で液晶性を示す成分、低温用の低粘性成分、他の
誘電異方性を向上させる成分、コレステリック性を付与
する成分、2色性を有する成分、導電性を付与する成分
、その他塔種添加剤を適宜混入して用いれば良い。
Since the trans-ethylene derivatives of the present invention do not exhibit a sufficiently wide operating temperature range by themselves, one or more of them may be mixed with other liquid crystal compounds to obtain a mixture with a desired liquid crystal temperature range. In this case, the compound of the present invention is used in the mixture in an amount of 1 to 50 wt$, more preferably 3 to 30 wt$. Other liquid crystalline compounds vary depending on the application, required performance, etc., but they consist of a component that exhibits liquid crystallinity and additive components that are added as necessary, such as a component that exhibits liquid crystallinity at high temperatures, a low-viscosity component for low temperatures, Other components that improve dielectric anisotropy, components that impart cholesteric properties, components that have dichroism, components that impart electrical conductivity, and other additives may be mixed as appropriate.

具体的には以下のような化合物がある。Specifically, there are the following compounds.

以下の式でのR,R’は本発明でのRとは異なり、アル
キル基、アルコキシ基、ハロゲン原子、シアノ基等の基
を表す。
Unlike R in the present invention, R and R' in the following formula represent groups such as an alkyl group, an alkoxy group, a halogen atom, and a cyano group.

R召X)R R−o−o−R゛ R替・R′ RC’−0−R′ R@coo@R’ RGCOO@−R′ R−o−CH=CH−o−R′ R−o−N=N−o−R′ R召(トDR′ なお、これらの化合物は単なる例示にすぎなく、水素原
子のハロゲン原子、シアノ基、メチル基等への置換、シ
クロヘキサン環、ベンゼン環の他の六員環、五員環等へ
の置換、環の間の結合基の変更等種々の材料が選択使用
される。
R call o-N=N-o-R' Various materials can be selected and used, such as substitution with other six-membered rings, five-membered rings, etc., and changes in bonding groups between rings.

本発明の組成物は、液晶セルに注入されて用いられる。The composition of the present invention is used by being injected into a liquid crystal cell.

代表的な電気光学除讐1セルとしては、ツイストネマチ
ック(TN)型液晶セルがあり、ガラス、プラスチック
等の透明基板内面にIn2O3−5n02等の透明電極
を所望のパターン状に形成して、必要に応じて5i02
、ポリイミド等のオーバーコートを゛し、横配向層を形
成した基板を相対向せしめ周辺をシールし、液晶を注入
し注入口を封止したものであり、この両外面に偏光板を
積層して使用される。又、この外、相転移型。
A typical electro-optic cell is a twisted nematic (TN) type liquid crystal cell, in which transparent electrodes such as In2O3-5n02 are formed in a desired pattern on the inner surface of a transparent substrate such as glass or plastic. 5i02 according to
The substrates with horizontal alignment layers are placed facing each other with an overcoat such as polyimide, the periphery is sealed, liquid crystal is injected and the injection port is sealed, and polarizing plates are laminated on both outer surfaces. used. In addition to this, there is also a phase transition type.

ゲストホスI[、動的散乱型又はそれらを組み合せて用
いられても良いし、電気的にでなく熱による書き込みを
するタイプのものに用いてもよい。
Guestphos I [, a dynamic scattering type, or a combination thereof may be used, or a type that performs writing by heat rather than electrically may be used.

さらにセルの構造としては透明基板と透明電極の間に、
5i02 、 Al2O2等のアンダーコート層を設け
る、反射性電極を用いる、2層電極を用いる、カラー偏
光板を用いる、カラーフィルターを用いる、半導体基板
を用いる、2層素子とする等種々の応用が可能であり、
時計、電卓、計測器、自動車用計器、ゲーム、コンピュ
ータ一端末機等種々の用途に使用可iる。
Furthermore, as for the structure of the cell, between the transparent substrate and the transparent electrode,
Various applications are possible, such as providing an undercoat layer such as 5i02, Al2O2, using a reflective electrode, using a two-layer electrode, using a color polarizing plate, using a color filter, using a semiconductor substrate, and creating a two-layer device. and
It can be used for various purposes such as watches, calculators, measuring instruments, automobile instruments, games, computer terminals, etc.

一般式(I)においてXが塩素原子である化合物は例え
ば次に示す工程を径て合成される。
A compound in which X is a chlorine atom in general formula (I) can be synthesized, for example, through the following steps.

↓Br2 すなわち、式(II)の化合物を臭素と反応させて(m
)とし、(IV)とマグネシウムから調製したグリニヤ
ー試薬と(III)をN1(dppe)C12ノような
カップリング触媒の存在下反応させて、式(I)におい
てXが塩素原子の化合物を得る。
↓Br2 That is, by reacting the compound of formula (II) with bromine (m
), and (III) is reacted with a Grignard reagent prepared from (IV) and magnesium in the presence of a coupling catalyst such as N1(dppe)C12 to obtain a compound of formula (I) in which X is a chlorine atom.

一般式(I)においてXがフッソ原子である化合物は例
えば次に示す工程を径て合成される。
A compound in which X is a fluorine atom in general formula (I) can be synthesized, for example, through the following steps.

↓Br2 すなわち、式(V)の化合物を出発物質として同様にし
て、式CI)においてXがフッソ原子の化合物を得る。
↓Br2 That is, in the same manner using the compound of formula (V) as a starting material, a compound of formula CI) in which X is a fluorine atom is obtained.

また、一般式(I)においてXがシアノ基である化合物
は例えば次に示す工程を径て合成される。
Further, a compound in which X is a cyano group in general formula (I) is synthesized, for example, through the following steps.

すなわち、式(I)においてXが塩素原子の化合物をマ
グネシウムと反応させた後炭酸化して(■)とし、(■
)を修酸2塩化物のような塩素化剤と反応させて(■)
とし、(■)と濃アンモニア水を反応させて、アミド(
IX)とし、(IX)をパラトルエンスルホニルクロラ
イドのような謄菊剤の存在下脱水して、式CI)におい
て、Xがシアン基である化合物を得る。
That is, in formula (I), a compound in which X is a chlorine atom is reacted with magnesium and then carbonated to form (■), and (■
) with a chlorinating agent such as oxalic acid dichloride (■)
Then, by reacting (■) with concentrated ammonia water, the amide (
IX) and dehydration of (IX) in the presence of a dehydrator such as para-toluenesulfonyl chloride provides a compound of formula CI) in which X is a cyan group.

[実施例] 次に実施例をもって本発明を具体的に説明する。[Example] Next, the present invention will be specifically explained using examples.

実施例1 の化合物200gと、微粉鉄20gと四塩化炭素500
m1の混合物に、臭素175gを滴下し、30℃以下で
16時間攪拌した。ジクロルメタンを加え、有機層を亜
硫酸ナトリウム水溶液、水酸化ナトリウム水溶液で洗浄
し、さらに水で洗浄した。無水硫酸ナトリウムを加えて
乾燥した後、溶媒を留去し、残液をトルエンから再結晶
2回しての化合物を得た。収量227g。
200 g of the compound of Example 1, 20 g of fine iron powder, and 500 g of carbon tetrachloride.
175 g of bromine was added dropwise to the mixture of m1, and the mixture was stirred at 30° C. or lower for 16 hours. Dichloromethane was added, and the organic layer was washed with an aqueous sodium sulfite solution, an aqueous sodium hydroxide solution, and further washed with water. After drying by adding anhydrous sodium sulfate, the solvent was distilled off, and the residual liquid was recrystallized twice from toluene to obtain a compound. Yield: 227g.

次に、式CHs−CH=CH−GH2−CH2Brの化
合物14.9gと削り状マグネシウムからエーテル40
+ol中グリこヤー試薬を調製しヨ洗に合成した の化合物とベンゼン80111とエーテル40m1およ
びビス(1,2−ジフェニルホスフィノ)エタンニッケ
ル(II)クロライド0.5gの混合物に30分を要し
て室温にて滴下し、さらに室温で4時M撹拌した後、l
:5塩酸300m lを加えて、有機層を分離し水層を
ジクロロメタンにて抽出した。有機層を1つにまとめて
水洗した後、無水硫酸ナトリウムを加えて乾燥し、溶媒
を留去した。残渣をn−ヘキサンから再結晶し、さら5
に蒸留してであられされる4−クロル−4’−()ラン
ス−3″−ペンテニル)ビフェニルを12.8g得た。
Next, from 14.9 g of a compound of the formula CHs-CH=CH-GH2-CH2Br and magnesium turnings, 40 g of ether
It took 30 minutes to prepare the Glycoyer reagent in +OL and wash the compound with the synthesized compound, benzene 80111, 40 ml of ether, and 0.5 g of bis(1,2-diphenylphosphino)ethanenickel(II) chloride. After stirring at room temperature for 4 hours, l
:5 300 ml of hydrochloric acid was added, the organic layer was separated, and the aqueous layer was extracted with dichloromethane. The organic layers were combined into one, washed with water, dried over anhydrous sodium sulfate, and the solvent was distilled off. The residue was recrystallized from n-hexane and further
12.8 g of 4-chloro-4'-()lance-3''-pentenyl)biphenyl was obtained by distillation.

収率83% 融点75.2℃ その赤外スペクトル(K
Br錠)を第1図に示す。
Yield 83% Melting point 75.2℃ Its infrared spectrum (K
Br tablet) is shown in Figure 1.

実施例2 実施例1において の化合物の代りに の化合物を使用する他は実施例1と同様にして、で示さ
れる4−フルオロ−4’−(トランス−3″−ペンテこ
ル)ビフェニルを得た。融点44,2°Cその赤外スペ
クトル図(KBr錠)を第2図に示す。この化合物のI
HNMRスペクトルは以下のとおりであった。
Example 2 4-fluoro-4'-(trans-3''-pentekol)biphenyl represented by was obtained in the same manner as in Example 1 except that the compound in Example 1 was replaced with the following compound. The infrared spectrum (KBr tablet) of this compound is shown in Figure 2.
The HNMR spectrum was as follows.

’HNMR(CDCh溶媒、TMS内部標準)δ(pp
m) 1.5〜1.7  Cd、 4Hz       3H
)2.0〜2.8  (complex  m、   
4H)5.3〜5.5  (com’pl’ex’  
m、   2H)8.8〜?、8’ (complex
  m、   ”8H)実施例3 実施例1で得られた の化合物12.8gとエチルブロマイド10.9gおよ
びテトラヒドロフラン60m1の混合物を窒素気流下、
削り状マグネシウム3.6gテトラヒドロフラン40I
Illの混合物に攪拌しながら室温にて1時間を要して
滴下し、さらに6時間還流下加熱した。−15°Cに保
ちながら炭酸ガスを導入する。
'HNMR (CDCh solvent, TMS internal standard) δ (pp
m) 1.5-1.7 Cd, 4Hz 3H
)2.0~2.8 (complex m,
4H) 5.3~5.5 (com'pl'ex'
m, 2H) 8.8~? ,8' (complex
m, "8H) Example 3 A mixture of 12.8 g of the compound obtained in Example 1, 10.9 g of ethyl bromide and 60 ml of tetrahydrofuran was heated under a nitrogen stream.
Magnesium shavings 3.6g Tetrahydrofuran 40I
The mixture was added dropwise to the mixture of Ill at room temperature with stirring over 1 hour, and the mixture was further heated under reflux for 6 hours. Carbon dioxide gas is introduced while maintaining the temperature at -15°C.

室温に戻して1:5塩酸を加え、さらに、ジクロルメタ
ンを加え有機層を分取し、水洗し 無水硫酸づグネシウ
ムによる乾燥後、溶媒を留去し、残渣をトルエンから再
結晶して の化合物を8.5g得た。収率71%。
Return to room temperature, add 1:5 hydrochloric acid, then add dichloromethane, separate the organic layer, wash with water, dry over anhydrous magnesium sulfate, evaporate the solvent, and recrystallize the residue from toluene to obtain the compound. 8.5g was obtained. Yield 71%.

の化合物4.2gと式(GOCI)2の化合物8.1g
を四塩化!! 251.ベンゼン25m1と混合し、さ
らにN、N−ジエチルアニリン1滴を加え3時間還流下
加熱し、次に、過剰の(0001)2 と溶媒を留去し
、残渣として得られた の化合物をn−へキサン30m1に溶解し、これを濃ア
ンモニア水30m1に15℃以下で滴下し、析出しの化
合物を枦取し、減圧下乾燥した。収量3.9g収率83
%分解点24.8°Cその赤外スペクトル図(KBr錠
)を第3図に示す。
4.2 g of the compound of formula (GOCI)2 and 8.1 g of the compound of formula (GOCI)2
Tetrachloride! ! 251. The mixture was mixed with 25 ml of benzene, 1 drop of N,N-diethylaniline was added, and the mixture was heated under reflux for 3 hours. Next, the excess (0001) 2 and the solvent were distilled off, and the resulting compound was diluted with n- The solution was dissolved in 30 ml of hexane and added dropwise to 30 ml of concentrated aqueous ammonia at 15° C. or below, and the precipitated compound was collected and dried under reduced pressure. Yield 3.9g Yield 83
% decomposition point 24.8°C. Its infrared spectrum (KBr tablet) is shown in Figure 3.

の化合物1.7g、ピリジン1.4g、ベンゼン25m
1と混合し、10時間還流下加熱した。反応混合物を室
温に戻して町場後、炉液をアル趣ナーn−ヘキサンのク
ロマトにかけ、n−へキサンから2回再結晶して、白色
結晶の であられされる4−シアノ−4’−()ランス−3”−
ペンテニル)ビフェニルを得た。融点76.4℃偏光顕
微鏡下の観察の結果、冷却時72.6℃において等方性
液体からネマチック相に変るモノトロピック液晶であっ
た。この化合物のIRスペクトル図(KBr錠)を第4
図に示す。また、この化合物のIHNMRスペクトルは
以下のとおりであった。
1.7g of compound, 1.4g of pyridine, 25m of benzene
1 and heated under reflux for 10 hours. After cooling the reaction mixture to room temperature, the furnace solution was chromatographed with alkaline n-hexane and recrystallized twice from n-hexane to give 4-cyano-4'-( ) Lance-3”-
(pentenyl)biphenyl was obtained. The melting point was 76.4°C. Observation under a polarizing microscope revealed that it was a monotropic liquid crystal that changed from an isotropic liquid to a nematic phase at 72.6°C upon cooling. The IR spectrum diagram of this compound (KBr tablet) is shown in the 4th column.
As shown in the figure. Moreover, the IHNMR spectrum of this compound was as follows.

IHNMR(CDCh溶媒、TMS内部標準)δ(pp
m ) 1.5〜1.?  (d、J= tHz     3H
)2.0〜2.85 (complex  m、   
4H)5.4〜5.8  (complex  ta、
   2H)7.2 〜7.8   (complex
    ra、      8H)実施例4〜9 実施例1と同様にして1妃あ化合物を得た。
IHNMR (CDCh solvent, TMS internal standard) δ (pp
m) 1.5-1. ? (d, J= tHz 3H
)2.0~2.85 (complex m,
4H) 5.4-5.8 (complex ta,
2H) 7.2 ~ 7.8 (complex
ra, 8H) Examples 4 to 9 Compounds 1 to 9 were obtained in the same manner as in Example 1.

4−クロロ−4’−()ランス−3″  −へキセニル
)ビフェニル 4−クロロ−4’−()ランス−3″  −へブテニル
)ビフェニル 実施例2と同様にして、下記の化合物を得た。
4-chloro-4'-()lans-3''-hexenyl)biphenyl 4-chloro-4'-()lanse-3''-hebutenyl)biphenyl The following compound was obtained in the same manner as in Example 2. .

4−フルオロ−4’−()ランス−3″  −へキセニ
ル)ビフェニル 4−フルオロ−4’−()ランス−3″′ −へブテニ
ル)ビフェニル     ・ 実施例3と同様にして、下記の化合物を得た。
4-Fluoro-4'-()lans-3''-hexenyl)biphenyl 4-fluoro-4'-()lanse-3''-hebutenyl)biphenyl - In the same manner as in Example 3, the following compound was prepared. Obtained.

4−シアノ−4’−()ランス−3″  −へキセニル
)ビフェニル 4−シアノ−4’−()ランス−3″  −へブテニル
)ビフェニル 実施例10 の化合物15wj$ トl )Lt り社液晶(ZLI
−1585) 85wt%とを混合した混合物は71,
3℃のネマチック−等方性液体転移温度を示した。1そ
の屈折率異方性は25℃において0.131であり、Z
LI−1565のそれは0.124であった。
4-cyano-4'-()lans-3''-hexenyl)biphenyl 4-cyano-4'-()lanth-3''-hebutenyl)biphenyl Example 10 Compound 15wj$tl) Lt Risha Liquid Crystal (ZLI
-1585) 71,
It exhibited a nematic-isotropic liquid transition temperature of 3°C. 1 Its refractive index anisotropy is 0.131 at 25°C, and Z
That of LI-1565 was 0.124.

の化合物は屈折率異方性を大きくするのに有用であるこ
とがわかる。
It can be seen that the compound is useful for increasing refractive index anisotropy.

の化合物の等重量混合物(母体液晶Aと称す)は0℃に
おいて−1,52誘電率異方性を示すが、の化合物を1
5wt1母体液晶に添加した混合物は0℃において−0
,87の誘電率異方性を示す。この化合物は誘電率異方
性を大きくするのに有用であることがわかる。
A mixture of equal weights of the compound (referred to as base liquid crystal A) exhibits -1,52 dielectric constant anisotropy at 0°C;
The mixture added to the 5wt1 base liquid crystal has a temperature of -0 at 0°C.
, 87. It can be seen that this compound is useful for increasing dielectric anisotropy.

化合物20wt!およびメルク社液晶(ZLI−108
3)55wt%の混合物は0℃において45.?cst
の粘度を示すが、この混合液晶に の化合物15wt%混合した液晶組成物は0℃において
37.7cstの粘度を示した。このようにの化合物は
粘度を低下させるのに有用であることがわかる。
Compound 20wt! and Merck liquid crystal (ZLI-108
3) A 55 wt% mixture has a temperature of 45% at 0°C. ? cst
However, a liquid crystal composition in which 15 wt% of the compound was mixed with this mixed liquid crystal showed a viscosity of 37.7 cst at 0°C. Such compounds are found to be useful in reducing viscosity.

実施例11 の化合物?、8wt1と母体液晶A 82.2wtXの
混合物はπ]笥のネマチック−等方性転移温度を示した
。またその誘電率異方性は0℃において+O,?5であ
った。母体液晶Aの0℃における誘電率異方性は−1,
52であるので の化合物は誘電率異方性を大きくするのに有用であるこ
とがわかる。
Compound of Example 11? , 8wt1 and host liquid crystal A 82.2wtX exhibited a nematic-isotropic transition temperature of π]. Also, its dielectric anisotropy is +O at 0°C, ? It was 5. The dielectric constant anisotropy of the base liquid crystal A at 0°C is -1,
52 is found to be useful for increasing dielectric anisotropy.

[発明の効果] 以上の如く本発明は、新規な化合物である一式中、−0
H−OH−はトランス−1,2−ジ置換エチレン結合を
示し、Rは炭素数1〜8のアルキル基を示し、Xはシア
ノ基、フラン原子及び塩素原子を示す)であられされる
トランス−エチレン誘導体化合物を提供することにより
、クリヤリングポイントが比較的高く、屈折率異方性が
大きく、誘電率異方性も大きく、粘度が小さい液晶組成
物を構成しうるような効果を生じる優れたものである。
[Effects of the Invention] As described above, the present invention provides novel compounds in which -0
H-OH- represents a trans-1,2-disubstituted ethylene bond, R represents an alkyl group having 1 to 8 carbon atoms, and X represents a cyano group, a furan atom, or a chlorine atom). By providing an ethylene derivative compound, a liquid crystal composition having a relatively high clearing point, large refractive index anisotropy, large dielectric constant anisotropy, and low viscosity can be produced. It is something.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は、実施例1の化合物、第2図は実施例2の化合
物、第3図は実施例3の化合物の合成のための中間体、
第4図は実施例3の化合物の赤外スペクトル図。 箋10 偽−l ′第3昭 手続補正書(方式) %式% 1、事件の表示 昭和59年特許願第146051号 2、発明の名称 トランス−エチレン誘導体化合物及びそれを含有する液
晶組成物 3、補正をする者 事件との関係  特許出願人 住 所  東京都千代田区丸の内二丁目1番2号名称 
(004)旭硝子株式会社 5、補正命令の日付   昭和59年10月30日(発
送日)8、補正により増加する発明の数   なし7、
補正の対象   明細書 8、補正の内容 願書に最初に添付した明細書の浄書・別紙のとおり(内
容に変更なし) 8、添付書類 手続補正書 昭和59年12月7ρ日
FIG. 1 shows the compound of Example 1, FIG. 2 shows the compound of Example 2, and FIG. 3 shows an intermediate for the synthesis of the compound of Example 3.
FIG. 4 is an infrared spectrum diagram of the compound of Example 3. Note 10 False-l ' Third Showa Procedural Amendment (Method) % Formula % 1. Description of the case 1982 Patent Application No. 146051 2. Name of the invention Trans-ethylene derivative compound and liquid crystal composition containing the same 3 , Relationship with the case of the person making the amendment Patent applicant address 2-1-2 Marunouchi, Chiyoda-ku, Tokyo Name
(004) Asahi Glass Co., Ltd. 5. Date of amendment order: October 30, 1980 (shipment date) 8. Number of inventions increased by amendment: None 7.
Subject of amendment Specification 8, Contents of amendment As shown in the engraving of the specification originally attached to the application (no change in content) 8. Written amendment to attached documents procedure December 7th, 1982

Claims (3)

【特許請求の範囲】[Claims] (1)一般式 ▲数式、化学式、表等があります▼( I ) (式中−CH=CH−は、トランス−1,2−ジ置換エ
チレン結合を示し、Rは炭素数1〜8のアルキル基を示
し、Xはシアノ基、フッ素原子及び塩素原子を示す)で
あらわされるトランス−エチレン誘導体化合物。
(1) General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (I) (In the formula, -CH=CH- represents a trans-1,2-disubstituted ethylene bond, and R is an alkyl group having 1 to 8 carbon atoms. (X represents a cyano group, a fluorine atom, or a chlorine atom).
(2)( I )式においてRは炭素数1〜5の直鎖状の
アルキル基であるところの特許請求の範囲第1項記載の
トランス−エチレン誘導体化合物。
(2) The trans-ethylene derivative compound according to claim 1, wherein in formula (I), R is a linear alkyl group having 1 to 5 carbon atoms.
(3)一般式 ▲数式、化学式、表等があります▼( I ) (式中−CH=CH−は、トランス−1,2−ジ置換エ
チレン結合を示し、Rは炭素数1〜8のアルキル基を示
し、Xはシアノ基、フッ素原子及び塩素原子を示す)で
あらわされるトランス−エチレン誘導体化合物の少なく
とも1種を組成物中に1〜50wt%混合したことを特
徴とする液晶組成物。
(3) General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (I) (In the formula, -CH=CH- represents a trans-1,2-disubstituted ethylene bond, and R is an alkyl group having 1 to 8 carbon atoms. 1. A liquid crystal composition comprising 1 to 50 wt % of at least one trans-ethylene derivative compound represented by the following formula (X represents a cyano group, a fluorine atom, or a chlorine atom).
JP14605184A 1984-07-16 1984-07-16 Trans-ethylene derivative compound and liquid crystal composition containing same Granted JPS6127931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14605184A JPS6127931A (en) 1984-07-16 1984-07-16 Trans-ethylene derivative compound and liquid crystal composition containing same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14605184A JPS6127931A (en) 1984-07-16 1984-07-16 Trans-ethylene derivative compound and liquid crystal composition containing same

Publications (2)

Publication Number Publication Date
JPS6127931A true JPS6127931A (en) 1986-02-07
JPH0568520B2 JPH0568520B2 (en) 1993-09-29

Family

ID=15398981

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14605184A Granted JPS6127931A (en) 1984-07-16 1984-07-16 Trans-ethylene derivative compound and liquid crystal composition containing same

Country Status (1)

Country Link
JP (1) JPS6127931A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4709030A (en) * 1984-07-12 1987-11-24 Hoffmann-La Roche Inc. Novel liquid crystal mixtures
US4770503A (en) * 1985-03-26 1988-09-13 Hoffmann-Laroche Inc. Liquid crystalline compounds
US4915480A (en) * 1984-05-25 1990-04-10 Martin Petrzilka Liquid crystalline compounds and mixtures
US5110498A (en) * 1989-12-27 1992-05-05 Showa Shell Sekiyu K.K. Liquid crystal compound
US5238602A (en) * 1984-07-16 1993-08-24 Hoffmann La Roche Inc. Liquid crystals
JPH11100579A (en) * 1997-09-29 1999-04-13 Dainippon Ink & Chem Inc Nematic liquid crystal composition and liquid crystal display prepared therefrom
JP2007291338A (en) * 2006-03-30 2007-11-08 Chisso Corp Liquid crystal composition and liquid crystal display element
US7435460B2 (en) 2006-03-23 2008-10-14 Chisso Corporation Liquid crystal composition and liquid crystal display device
US7435459B2 (en) 2006-03-30 2008-10-14 Chisso Corporation Liquid crystal composition and liquid crystal display device
JP2013534640A (en) * 2010-05-19 2013-09-05 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング Optical switch element including liquid crystal medium
DE10218975B4 (en) 2001-06-12 2019-01-31 Merck Patent Gmbh 4-alk-3-enyl-biphenyl derivatives

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4915480A (en) * 1984-05-25 1990-04-10 Martin Petrzilka Liquid crystalline compounds and mixtures
US4709030A (en) * 1984-07-12 1987-11-24 Hoffmann-La Roche Inc. Novel liquid crystal mixtures
US5238602A (en) * 1984-07-16 1993-08-24 Hoffmann La Roche Inc. Liquid crystals
US4770503A (en) * 1985-03-26 1988-09-13 Hoffmann-Laroche Inc. Liquid crystalline compounds
US5110498A (en) * 1989-12-27 1992-05-05 Showa Shell Sekiyu K.K. Liquid crystal compound
JPH11100579A (en) * 1997-09-29 1999-04-13 Dainippon Ink & Chem Inc Nematic liquid crystal composition and liquid crystal display prepared therefrom
DE10218975B4 (en) 2001-06-12 2019-01-31 Merck Patent Gmbh 4-alk-3-enyl-biphenyl derivatives
US7435460B2 (en) 2006-03-23 2008-10-14 Chisso Corporation Liquid crystal composition and liquid crystal display device
JP2007291338A (en) * 2006-03-30 2007-11-08 Chisso Corp Liquid crystal composition and liquid crystal display element
US7435459B2 (en) 2006-03-30 2008-10-14 Chisso Corporation Liquid crystal composition and liquid crystal display device
JP2013534640A (en) * 2010-05-19 2013-09-05 メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツング Optical switch element including liquid crystal medium

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