JPS62175465A - Novel ester compound - Google Patents

Novel ester compound

Info

Publication number
JPS62175465A
JPS62175465A JP61015414A JP1541486A JPS62175465A JP S62175465 A JPS62175465 A JP S62175465A JP 61015414 A JP61015414 A JP 61015414A JP 1541486 A JP1541486 A JP 1541486A JP S62175465 A JPS62175465 A JP S62175465A
Authority
JP
Japan
Prior art keywords
liquid crystal
formula
expressed
compound expressed
formulas
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.)
Pending
Application number
JP61015414A
Other languages
Japanese (ja)
Inventor
Kazunori Nigorikawa
和則 濁川
Toyoshiro Isoyama
磯山 豊志郎
Yasuyuki Goto
泰行 後藤
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.)
JNC Corp
Original Assignee
Chisso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chisso Corp filed Critical Chisso Corp
Priority to JP61015414A priority Critical patent/JPS62175465A/en
Publication of JPS62175465A publication Critical patent/JPS62175465A/en
Pending legal-status Critical Current

Links

Landscapes

  • Pyridine Compounds (AREA)
  • Liquid Crystal Substances (AREA)

Abstract

NEW MATERIAL:An ester compound expressed by formula I (R is 1-10C alkyl; ring A is expressed by formula IV or V; X is F or Cl; Y is F, Cl or CN). EXAMPLE:3'-Fluoro-4'-cyanophenyl 2-(trans-4-ethylcyclohexyl)-5-nicotinate. USE:Useful as a liquid crystal composition for display elements, capable of exhibiting a nematic liquid crystal phase, having improved compatibility with other liquid crystal compositions and increasing the clear point by adding the compound expressed by formula I, increasing a dielectric anisotropic value DELTAepsilonand showing effect on drop of driving voltage of display elements of liquid crystal compositions. PREPARATION:As shown in the reaction formula, a 2-substituted-5-nicotinic acid expressed by formula II is linked to a compound expressed by formula III in methylene chloride solvent using dicyclohexylcarbodiimide to afford the aimed compound expressed by formula I.

Description

【発明の詳細な説明】 (発明の利用分野〕 本発明は、新規なエステル化合物および該化合物を含有
する表示素子用液晶組成物に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to a novel ester compound and a liquid crystal composition for a display element containing the compound.

〔従来の技術及び問題点〕[Conventional technology and problems]

光学異方性および誘電異方性を利用した液晶表示素子の
表示方式には、ねじれネマチック(TN)型、動的散乱
(DS )型、ゲスト−ホスト型など各種の方式があり
、それぞれの方式により使用される液晶物質に望まれる
性質が異なる。しかし、いずれにしてもこれら液晶表示
素子に使用される液晶化合物は、なるべく広い温度範囲
で液晶相を示すものが望ましく、また水分、熱、空気な
どに対して安定であることが必要である。現在のところ
単一化合物でこの様な条件をすべて満たすものはなく、
数種の液晶化合物や非液晶化合物を混合して実用に供し
ているのが現状である。本発明の目的は液晶誘電体の成
分として使用するのに有用な新規な化合物を一つでも多
く提供するということにある。
There are various display methods for liquid crystal display elements that utilize optical anisotropy and dielectric anisotropy, such as twisted nematic (TN) type, dynamic scattering (DS) type, and guest-host type. The desired properties of the liquid crystal material used differ depending on the type of liquid crystal material used. However, in any case, the liquid crystal compounds used in these liquid crystal display elements desirably exhibit a liquid crystal phase over as wide a temperature range as possible, and also need to be stable against moisture, heat, air, and the like. Currently, there is no single compound that satisfies all of these conditions.
Currently, several types of liquid crystal compounds and non-liquid crystal compounds are mixed and used for practical purposes. It is an object of the present invention to provide as many novel compounds as possible for use as components of liquid crystal dielectrics.

C発明の構成〕 本発明は一般式 Y (式中Rは炭素数1〜10のアルキル基を示し、()は
K)又は(ヅを示し、XはF又はctを示し、YはF%
Ct又はCNを示す)で表わされるエステル化合物およ
び該化合物の少なくとも一種を含有する液晶組成物であ
る。
C Structure of the Invention] The present invention is based on the general formula
This is a liquid crystal composition containing an ester compound represented by Ct or CN) and at least one of the compounds.

〔発明の作用及び効果〕[Operation and effect of the invention]

本発明の(1)式の化合物はネマチック液晶相を示し、
また他の液晶組成物との相溶性くすぐれ、本化合物を成
分として加えることによシ液晶組成物の透明点を上昇さ
せ、また誘電異方性値ΔCも増大させ本化合物を添加し
た液晶組成物の表示素子の駆動電圧を降下させる効果を
有する。
The compound of formula (1) of the present invention exhibits a nematic liquid crystal phase,
In addition, it has excellent compatibility with other liquid crystal compositions, and by adding this compound as a component, the clearing point of the liquid crystal composition can be raised, and the dielectric anisotropy value ΔC can also be increased. This has the effect of lowering the drive voltage of the display element.

本発明の液晶化合物と共に液晶組成物の成分に使用でき
る液晶化合物は特に限定されないが具体的に例示すると
エステル系液晶化合物としてハ、トランス−4−アルキ
ルシクロへキサンカルボン酸−4−7,ルキルフェニル
エステル、トランス−4−アルキルシクロへキサンカル
ボン酸−4−フルコキシフェニルエステル、4−アルコ
キシ安息香1!−4−アルキルフェニルエステル、4−
アルキル安息香酸−4−シアノフェニルエステル、4−
()ランス−4−アルキルシクロヘキシル)安息香酸−
4−シアノ7エ二ルエステル等、シック塩基系液晶化合
物としテti、4−アルコキシベンジリデン−4−アル
カノイルオキシアニリン、4−アルコキシベンジリチン
−4−フルキルアニリン、4−アルコキシベンジリデン
−4−シアノアニリン等、ビフェニル系液晶化合物とし
ては、4′−アルキル−4−シアノビフェニル、4’−
フルフキシー4−シアノビフェニル、4′−アルコキシ
−4−フルキルビフェニル等、フェニルシクロヘキサン
系化合物としては、トランス−4−アルキル−(4−シ
アノフェニル)シクロヘキサン、トランス−4−アルキ
ル−(4−フルコキシ7工二ル)シクロヘキサン等、複
素環系液晶化合物としては、5−アルキル−2−(4−
シアノフェニル)−1,3−ジオキサン、5−フルキル
−2−(4−シアノフェニル)ピリミジン、5−シアノ
−2−(4−アルキルフェニル)ピリミジン等をあげる
ことができる。
Liquid crystal compounds that can be used as components of liquid crystal compositions together with the liquid crystal compound of the present invention are not particularly limited, but specific examples include ester-based liquid crystal compounds such as (c), trans-4-alkylcyclohexanecarboxylic acid-4-7, rukylphenyl; Ester, trans-4-alkylcyclohexanecarboxylic acid-4-flukoxyphenyl ester, 4-alkoxybenzoic acid 1! -4-alkylphenyl ester, 4-
Alkylbenzoic acid-4-cyanophenyl ester, 4-
() lance-4-alkylcyclohexyl)benzoic acid-
4-cyano 7 enyl ester, etc., as a thick basic liquid crystal compound, 4-alkoxybenzylidene-4-alkanoyloxyaniline, 4-alkoxybenzylitine-4-furkylaniline, 4-alkoxybenzylidene-4-cyanoaniline Examples of biphenyl liquid crystal compounds include 4'-alkyl-4-cyanobiphenyl, 4'-
Examples of phenylcyclohexane compounds such as flufoxy-4-cyanobiphenyl and 4'-alkoxy-4-furkylbiphenyl include trans-4-alkyl-(4-cyanophenyl)cyclohexane and trans-4-alkyl-(4-flukoxy7). Examples of heterocyclic liquid crystal compounds such as cyclohexane include 5-alkyl-2-(4-
Examples include cyanophenyl)-1,3-dioxane, 5-furkyl-2-(4-cyanophenyl)pyrimidine, and 5-cyano-2-(4-alkylphenyl)pyrimidine.

本発明の組成物における本発明の化合物の含有量は、混
合する他の成分の種類によって異なる。通常他の成分に
対して1−30重量%、好ましくは5−15重量%であ
る。具体例としてハ、例エバトランスー4−フルキル−
(4−シアノフェニル)シクロヘキサンの1−数種の混
合物70−99重量%、本発明の化合物1−30重量%
、好ましくは前者85−95重量%に対し、後者5−1
5重量%のものである。
The content of the compound of the present invention in the composition of the present invention varies depending on the types of other components to be mixed. Usually 1-30% by weight, preferably 5-15% by weight relative to other ingredients. As a specific example, evatrans-4-furkyl-
70-99% by weight of one to several mixtures of (4-cyanophenyl)cyclohexane, 1-30% by weight of compounds of the invention
, preferably 85-95% by weight of the former and 5-1% of the latter
5% by weight.

まり、トランス−4−アルキル−(4−シアノフェニル
)シクロヘキサンの混合物60−84重量%、4−()
ランス−4−アルキルシクロヘキシル) −4’−シア
ノビフェニルの混合物10−15重景%、本発明の化合
物1−30重量%の組成物をあげることができる。よシ
好ましい組成としてはこの3者の含有量が夫々72−8
1重量%、12−15重量%、5−15重量%のもので
ある。
60-84% by weight of a mixture of trans-4-alkyl-(4-cyanophenyl)cyclohexane, 4-()
Mention may be made of compositions containing 10-15% by weight of mixtures of lance-4-alkylcyclohexyl)-4'-cyanobiphenyl and 1-30% by weight of the compounds of the invention. A preferable composition is that the content of these three components is 72-8, respectively.
1% by weight, 12-15% by weight, and 5-15% by weight.

(化合物の製法〕 次に本発明の化合物の製造法について述べる。(Production method of compound) Next, a method for producing the compound of the present invention will be described.

本発明の(1)式の化合物は、2−置換−5−二;チン
酸α)と置換フェノール■とを塩化メチレン溶媒中でジ
シクロへキシルカルボジイミドを用いて縮合させること
Kよシ得ることができる。
The compound of formula (1) of the present invention can be obtained by condensing 2-substituted-5-di; can.

これを化学反応式で示せば以下の如くになる。This can be expressed as a chemical reaction formula as follows.

(実施例〕 以下に実施例により本発明の化合物につき更に詳IaK
説明する。
(Examples) The following examples provide further details on the compounds of the present invention.
explain.

実施例1 (2−()ランス−4−エチルシクロヘキシル)−5−
ニコチン酸3′−フルオロ−41−シアノフェニルエス
テルの製造〕 2−()ランス−4−エチルシクロヘキシル)−5−ニ
コチン酸2.11!と3−フルオロ−4−シアンフェノ
ール1.2ft塩化メチレン30s/に加え、O″CC
以下ちながらジシク四へキシルカルボジイミド1.81
の塩化メチレン溶液20g/を滴下し、滴下後さらに8
時間攪拌した。
Example 1 (2-() lance-4-ethylcyclohexyl)-5-
Production of nicotinic acid 3'-fluoro-41-cyanophenyl ester] 2-()trans-4-ethylcyclohexyl)-5-nicotinic acid 2.11! and 3-fluoro-4-cyanphenol 1.2ft methylene chloride 30s/plus O″CC
Hereinafter, dicyclotetrahexylcarbodiimide 1.81
20 g/methylene chloride solution of
Stir for hours.

攪拌終了後析出した固体を炉別しp液に2N−水酸化ナ
トリウム水溶液を加えて分液した塩化メチレン層を洗浄
水が中性になるまで水洗した。
After the stirring was completed, the precipitated solid was separated in a furnace, and a 2N aqueous sodium hydroxide solution was added to the p liquid to separate the methylene chloride layer, which was then washed with water until the washing water became neutral.

この塩化メチレン層から溶媒を留去し、残留物をエタノ
ールを用いて再結晶させて目的とする2−Cト5ンスー
4−エチルシクロヘキシル)−5−ニコチン酸3−フル
オロ−4−シアノフェニルエステルo、5ftiた。1
1N 晶−$ マfツク点(C−N点)は78.0℃、
ネマチック−透明点(N −N点)は159.6℃であ
った。
The solvent was distilled off from this methylene chloride layer, and the residue was recrystallized using ethanol to obtain the desired 2-Ct-4-ethylcyclohexyl)-5-nicotinic acid 3-fluoro-4-cyanophenyl ester. o, 5fti. 1
1N crystal-$ Mark point (C-N point) is 78.0℃,
The nematic clearing point (N-N point) was 159.6°C.

実施例2 (2−()ランス−4−エチルシクロヘキシル)−5−
ニコチン酸3′、l−ジフルオロフェニルエステルの製
造〕 実施例1における3−フルオロ−4−シアノフェノール
に替えて3.4−ジフルオロフェノールを用いる他は実
施例1と同様な操作により目的とする2−(トランス−
4−エチルシクロヘキシル)−5−ニコチン酸3’、 
4’−ジフルオロフェニルエステルを得た。このものは
融点(C−N点)’81.4℃、ネマチック−透明点(
N−N点)75.9℃のモノトロピック液晶であった。
Example 2 (2-() lance-4-ethylcyclohexyl)-5-
Production of nicotinic acid 3',l-difluorophenyl ester] The desired 2 was produced by the same procedure as in Example 1 except that 3,4-difluorophenol was used in place of 3-fluoro-4-cyanophenol in Example 1. -(Trans-
4-ethylcyclohexyl)-5-nicotinic acid 3',
4'-difluorophenyl ester was obtained. This material has a melting point (C-N point) of '81.4℃ and a nematic clearing point (
N-N point) It was a monotropic liquid crystal with a temperature of 75.9°C.

実施例3(組成物) なる液晶組成物囚のN−N点は52.1℃、誘電異方性
値Δεは+11.2、光学異方性値Δnは0.119で
ある。この液晶組成物囚をセル厚lOμmのTNセルに
封入した液晶セルの20℃におけるしきい値電圧は1.
54V、飽和電圧は2.13Vであった。この液晶組成
物(A) 85 wt%と本発明の実施例1の2−(ト
ランス−4−エチルシクロヘキシル)−5−ニコチン酸
3’−フルオロ−4′−シアノフェニルエステル15w
t%とから成る組成物Q3)のN−N点は61.2℃に
上昇し、Δεも+12.9に、Δnも0.128と増大
し、このものを前述のTNセルに封入した液晶セルの2
0℃におけるしきい値電圧は1.34v5飽和電圧は1
.92Vといずれも低くなった。
Example 3 (Composition) The N-N point of the liquid crystal composition is 52.1°C, the dielectric anisotropy value Δε is +11.2, and the optical anisotropy value Δn is 0.119. The threshold voltage at 20° C. of a liquid crystal cell in which this liquid crystal composition is sealed in a TN cell with a cell thickness of 10 μm is 1.
54V, and the saturation voltage was 2.13V. This liquid crystal composition (A) 85 wt% and 2-(trans-4-ethylcyclohexyl)-5-nicotinic acid 3'-fluoro-4'-cyanophenyl ester of Example 1 of the present invention 15w
The N-N point of composition Q3) consisting of cell 2
Threshold voltage at 0℃ is 1.34v5 Saturation voltage is 1
.. Both voltages were as low as 92V.

以上that's all

Claims (2)

【特許請求の範囲】[Claims] (1)一般式 ▲数式、化学式、表等があります▼ (式中Rは炭素数1〜10のアルキル基を示し、▲数式
、化学式、表等があります▼は▲数式、化学式、表等が
あります▼又は▲数式、化学式、表等があります▼を示
し、XはF又はClを示し、YはF、Cl又はCNを示
す)で表わされるエステル化合物。
(1) General formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (In the formula, R represents an alkyl group having 1 to 10 carbon atoms, ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ is ▲ Mathematical formulas, chemical formulas, tables, etc. Ester compound represented by ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼, where X represents F or Cl, and Y represents F, Cl, or CN).
(2)一般式 ▲数式、化学式、表等があります▼ (式中Rは炭素数1〜10のアルキル基を示し、▲数式
、化学式、表等があります▼は▲数式、化学式、表等が
あります▼又は▲数式、化学式、表等があります▼を示
し、XはF又はClを示し、YはF、Cl又はCNを示
す)で表わされるエステル化合物の少なくとも一種を1
成分として含有する液晶組成物。
(2) General formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (In the formula, R represents an alkyl group having 1 to 10 carbon atoms, ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ is ▲ Mathematical formulas, chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc.
A liquid crystal composition containing as an ingredient.
JP61015414A 1986-01-27 1986-01-27 Novel ester compound Pending JPS62175465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61015414A JPS62175465A (en) 1986-01-27 1986-01-27 Novel ester compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61015414A JPS62175465A (en) 1986-01-27 1986-01-27 Novel ester compound

Publications (1)

Publication Number Publication Date
JPS62175465A true JPS62175465A (en) 1987-08-01

Family

ID=11888088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61015414A Pending JPS62175465A (en) 1986-01-27 1986-01-27 Novel ester compound

Country Status (1)

Country Link
JP (1) JPS62175465A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5606547A (en) * 1987-07-27 1997-02-25 Hitachi, Ltd. Optical disc cartridge and mechanism for preventing an incorrect insertion of a cartridge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5606547A (en) * 1987-07-27 1997-02-25 Hitachi, Ltd. Optical disc cartridge and mechanism for preventing an incorrect insertion of a cartridge
US5612940A (en) * 1987-07-27 1997-03-18 Hitachi, Ltd. Disc cartridge for receiving a disk and mechanism for preventing an incorrect insertion of a cartridge
US5859829A (en) * 1987-07-27 1999-01-12 Hitachi, Ltd. Disc apparatus for accepting a disc having at least one portion for preventing misinsertion

Similar Documents

Publication Publication Date Title
JPH0578546B2 (en)
EP0205340B1 (en) Liquid crystal ester compound
JPS62234066A (en) Phenylpyridine derivative
JPH0144186B2 (en)
JPS61207359A (en) Dihalogenic aromatic compound
JPS62175465A (en) Novel ester compound
JPS59141540A (en) Tricyclic carboxylic acid ester derivative
JP2745073B2 (en) Phenylacetylene compound
JP2657683B2 (en) Unsaturated alkyl biphenyl carboxylic acid halogenophenyl esters
JP2822083B2 (en) Alkyneoxyphenylbicyclohexanes compounds
JPS60146868A (en) 4-substituted phenyl isothiocyanate
JP4094742B2 (en) Ester compound and liquid crystal composition containing the same
JP2717309B2 (en) Alkoxy-α-methylallylbenzenes
JPS642595B2 (en)
JPS62444A (en) Ester compound
JPH0232044A (en) Unsaturated alkylbenzoic acid halogenophenyl esters
JPH0142941B2 (en)
JPS6084273A (en) 2,3-dicyano-5-substituted pyrazine derivative
JPS61282345A (en) Ester compound
JPH0232277B2 (en)
JPH0142261B2 (en)
JPH0558958A (en) Fluorine liquid crystal compound
JPS62138471A (en) Pyridine derivative
JPH0350734B2 (en)
JPH0640986A (en) Diallyl biphenol derivative and liquid crystal composition therefrom