JPS63253075A - Novel pyrimidine derivative - Google Patents

Novel pyrimidine derivative

Info

Publication number
JPS63253075A
JPS63253075A JP8693987A JP8693987A JPS63253075A JP S63253075 A JPS63253075 A JP S63253075A JP 8693987 A JP8693987 A JP 8693987A JP 8693987 A JP8693987 A JP 8693987A JP S63253075 A JPS63253075 A JP S63253075A
Authority
JP
Japan
Prior art keywords
formula
compound
liquid crystal
reacting
phase
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
JP8693987A
Other languages
Japanese (ja)
Inventor
Makoto Sasaki
誠 佐々木
Kiyobumi Takeuchi
清文 竹内
Haruyoshi Takatsu
晴義 高津
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.)
DIC Corp
Original Assignee
Dainippon Ink and Chemicals Co Ltd
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 Dainippon Ink and Chemicals Co Ltd filed Critical Dainippon Ink and Chemicals Co Ltd
Priority to JP8693987A priority Critical patent/JPS63253075A/en
Publication of JPS63253075A publication Critical patent/JPS63253075A/en
Pending legal-status Critical Current

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  • Liquid Crystal Substances (AREA)
  • Liquid Crystal (AREA)

Abstract

NEW MATERIAL:The pyrimidine derivative of formula I (R and R' are independently 1-20C straight-chain alkyl). USE:Useful as an electro-optical display material. It exhibits SC phase over a wide temperature range and is effective as a liquid crystal material for a display cell utilizing ferroelectric liquid crystal. PREPARATION:The compound of formula I can be produced according to the reaction formula by reacting a compound of formula II with a Vilsmeier reagent prepared from N,N-dimethylformamide and phosphorus oxychloride, reacting the product with perchloric acid (the 1st step) and reacting the resultant compound of formula III with a benzamidine of formula IV in an alcohol in the presence of a sodium alcoholate (the 2nd step).

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は電気光学的表示材料として有用な新規ピリミシ
ン誘導体に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to novel pyrimicine derivatives useful as electro-optic display materials.

〔従来の技術〕[Conventional technology]

近年、大型液晶ディスプレイにエヌ・ニー命クラーク(
N−A−C1ark )等によって提案された強誘電性
液晶を利用した高速応答性に優れた液晶表示セルが使用
されている。この表示セルはカイラルスメクチックC相
(以下、SC0相という、)の光スイツチング現象を応
用したものであシ、このようなSe  相を示す液晶材
料としては、スメクチックC相(以下、Sc相という、
)を示す混合液晶に強誘電性カイラル化合物を添加して
調製されるタイグのカイラルスメクチック混合液晶が有
効である。
In recent years, N.M. Clark (
A liquid crystal display cell with excellent high-speed response using ferroelectric liquid crystal proposed by N-A-C1ark et al. has been used. This display cell applies the optical switching phenomenon of chiral smectic C phase (hereinafter referred to as SC0 phase).As a liquid crystal material exhibiting such Se phase, smectic C phase (hereinafter referred to as Sc phase) is used.
) is effective.Taig's chiral smectic mixed liquid crystal, which is prepared by adding a ferroelectric chiral compound to a mixed liquid crystal exhibiting the following properties, is effective.

〔発明が解決しようとする問題点〕[Problem that the invention seeks to solve]

この種の表示セルに広い動作温度範囲を確保するために
は、使用されるカイ2ルスメクチック混合液晶が広い温
度範囲でSC0相を示し得るものでなければならない。
In order to ensure a wide operating temperature range for this type of display cell, the chi2lsmectic mixed liquid crystal used must be capable of exhibiting the SC0 phase over a wide temperature range.

また、このように広い温度範囲で8e”相を示すカイラ
ルスメクチック混合液晶をl!lI製する際、強誘電性
カイラル化合物を添加すべき相手のスメクチック混合液
晶として広い温度範囲でSc相を示すものを使用すれば
効果的である。
In addition, when producing a chiral smectic mixed liquid crystal that exhibits an 8e'' phase over a wide temperature range, the ferroelectric chiral compound should be added to a smectic mixed liquid crystal that exhibits an Sc phase over a wide temperature range. It is effective if you use

そして、広い温度範囲でgo相を示すスメクチック混合
液晶を調製する方法として、一般的に、低い温度領域で
Se相を示すスメクチック液晶と高い温度領域でSea
を示すスメクチック液晶を混合してv!4製する方法が
採られるので、その調製材料としてBe相温度範囲の異
なる各1スメクチック液晶化合物特に広り温度範囲でS
e相を示すスメクチック液晶化合物の提供が望まれてい
る。
As a method for preparing a smectic mixed liquid crystal that exhibits a Go phase in a wide temperature range, a smectic liquid crystal that exhibits a Se phase in a low temperature range and a Sea phase in a high temperature range are generally used.
By mixing smectic liquid crystals that show v! Since the preparation method is adopted, each smectic liquid crystal compound with different Be phase temperature range is used as the preparation material, especially S in a wide temperature range.
It is desired to provide a smectic liquid crystal compound exhibiting an e-phase.

本発明が解決しようとする問題点は、広い温度範囲でS
e相を示す液晶化合物の提供にある。
The problem to be solved by the present invention is that S
An object of the present invention is to provide a liquid crystal compound exhibiting an e-phase.

〔間M’を解決するための手段〕[Means for solving the gap M']

本発明は、上記問題点を解決するなめに。 The present invention aims to solve the above problems.

一般式 (式中、R及びR′は各々独立的に炭素原子数1〜20
のアルキル基を表わす。) で表わされる化合物を゛提供する。
General formula (wherein R and R' each independently have 1 to 20 carbon atoms)
represents an alkyl group. ) is provided.

本発明に係る式(I)の化合vJは、久の裏道方法に従
って製造することができるや (上記式〇)〜荀の各式にかけるR及びR′は夫々式(
1)におけるR及びR′と同じ意味をもつ。)K1段階
一式■の化合物に、N、N−ジメチルホルムアミドとオ
キシ塩化リンから調整したビスマイヤー(Vllsm@
i@r )試薬と反応させた後、過塩素酸又は過塩素酸
マグネシウムと反応させて式(ト)の化合物を製造する
。大面の化合物は精製することなく、久の反応に使用す
る。
The compound vJ of the formula (I) according to the present invention can be produced according to Ku's back-road method.
It has the same meaning as R and R' in 1). ) K1 stage set ■ compound prepared from N,N-dimethylformamide and phosphorus oxychloride (Vllsm@
i@r) After reacting with a reagent, the compound of formula (g) is produced by reacting with perchloric acid or magnesium perchlorate. The large-sized compound is used in the next reaction without being purified.

藁2段階−第1段階で製造した粗製の式(2)の化合物
と式ωのベンツアミリン誘導体とをアルコール中でナト
リウムアルコラード存在下で反応させる。
Step 2 - The crude compound of formula (2) prepared in step 1 is reacted with a benzamyrin derivative of formula ω in alcohol in the presence of sodium alcoholade.

反応生成物に対して、溶媒抽出、水洗、乾燥、再結晶等
の精製処理を施すことによって、目的とする式(I)の
化合寄金単離することができる。
The desired compound of formula (I) can be isolated by subjecting the reaction product to purification treatments such as solvent extraction, water washing, drying, and recrystallization.

斯くして製造された式(1)で示される代表的な化合物
の転移温度金i1!i表に掲げる。
The transition temperature of the representative compound represented by formula (1) thus produced is gold i1! Listed in Table i.

yjIFJl  衆 134 (Sa、l:N ) x77(s;:B 2   n−C,H,、−n−05H11”’   9
2(C−+5e)136 (So、:N ) x74(N;:x) (表中、Cは結晶相、SaはスメクチックC相、Nはネ
マチック相、Iは等方性液体相を夫々貴わす。] 第1真から本発明の化合物が広い温度範囲でSe相を示
すことがわかる。
yjIFJl 134 (Sa, l:N) x77(s;:B 2 n-C,H,, -n-05H11”' 9
2(C-+5e)136 (So, :N) x74(N;:x) (In the table, C represents the crystalline phase, Sa represents the smectic C phase, N represents the nematic phase, and I represents the isotropic liquid phase, respectively. ] From the first true value, it can be seen that the compound of the present invention exhibits a Se phase over a wide temperature range.

実施例I N、N −ソメチA/ yet ルb 7ミド73.2
g(1,00モルンとオキシ塩化リン92.9 (0,
60モル)全5℃以下で反応させ、ビスマイヤー試薬’
isaした。次いで、4−n−ペンチルオキシフェニル
酢1144.49 (0,20モル]を加え、室温で1
時間反応させた後、80℃で5時間反応させた。反応終
了後、0℃以下で水100−を加えた後、過塩素酸マグ
ネシウム44.81 (0,20モ# ) kMJL、
1時間攪拌し、析出する結晶を濾過し、水洗、エーテル
洗浄後、減圧乾燥し、下記化合物7217(0,□19
モル)を得九。
Example I N,N-someti A/yet rub 7mid 73.2
g (1,00 morn and phosphorus oxychloride 92.9 (0,
60 mol) React at a temperature below 5°C, and add Bismayer's reagent
Isa did it. Next, 1144.49 (0.20 mol) of 4-n-pentyloxyphenyl vinegar was added, and 1
After reacting for an hour, the reaction was continued at 80° C. for 5 hours. After the reaction was completed, 100% of water was added at 0°C or below, and magnesium perchlorate was added to 44.81 (0.20 mo#) kMJL,
After stirring for 1 hour, the precipitated crystals were filtered, washed with water and ether, and dried under reduced pressure to obtain the following compound 7217 (0, □19
mole) obtained nine.

次いで、上記化合物10.2.!i’(0,026モル
ンと2−フロロ−4−n−ノニルオキシペンツアミノン
塩酸塩7.99 (0,026モル)1に無水エタノー
ル100dに溶解し、この溶液に0.13モル当量のナ
トリウムエトキサイド・エタノール溶液を滴下した後、
6時間加熱還流する0反応終了後、生成w’tトルエン
で抽出、水洗した後、溶媒を減圧留去する。
Then, the above compound 10.2. ! i' (0,026 mol and 7.99 (0,026 mol) of 2-fluoro-4-n-nonyloxypentzaminone hydrochloride) was dissolved in 100 d of absolute ethanol, and 0.13 molar equivalent of sodium was added to this solution. After dropping the ethoxide/ethanol solution,
After the reaction is heated and refluxed for 6 hours, the mixture is extracted with toluene produced, washed with water, and the solvent is distilled off under reduced pressure.

得られた粗生成物をエタノールで2回再結晶精製して、
下記化合物6.2 g(0,013モル)全得た。
The obtained crude product was purified by recrystallization twice with ethanol,
A total of 6.2 g (0,013 mol) of the following compound was obtained.

転移温度 85℃(C−+Se ) 134℃(s 、 :N) 177℃(N二I) 収  軍 50チ 実施例2 実施例1と同様にして下記化合物を得た。Transition temperature 85℃ (C-+Se) 134℃ (s, :N) 177℃ (N2I) Collection: Army 50 Chi Example 2 The following compound was obtained in the same manner as in Example 1.

転移温度 92℃(C→Be) 136℃(Sc’::N ) 174℃(Nニエ) 収  軍  54% 〔発明の効果〕 本発明に係る式(1)の化合物は、広い温度範囲で8e
相を示す新規な液晶化合物である。従って、本発明に係
る式(1)の化合物は強誘電性液晶を利用した茨示セル
の液晶材料として有用である。
Transition temperature 92°C (C→Be) 136°C (Sc'::N) 174°C (Nier) Convergence temperature 54% [Effects of the invention] The compound of formula (1) according to the present invention has a temperature of 8e over a wide temperature range.
This is a new liquid crystal compound that exhibits a phase. Therefore, the compound of formula (1) according to the present invention is useful as a liquid crystal material for a thorn display cell using ferroelectric liquid crystal.

手続補正書(自発) 昭和62年5月20日 昭和62年特許願第86939号 2、発明の名称 新規ピリミジン誘導体 3、補正をする者 事件との関係  特許出願人 〒174 東京都板橋区坂下三丁目35番58号(28
8)大日本インキ化学工業株式会社代表者  用  村
  茂  邦 4、代理人 〒103  東京都中央区日本橋三丁目7番20号大日
本インキ化学工業株式会社内 電話 東京(03)272−4511 (大代表)(8
876)弁理士高橋勝利 5、補正の対象 6、補正の内容 (1)明細書第3頁第9行目における 「〔問題を解決するための手段〕」を 「〔問題点を解決するための手段〕」に補正する。
Procedural amendment (spontaneous) May 20, 1988 Patent Application No. 86939 2, Title of invention: New pyrimidine derivative 3, Relationship with the person making the amendment Patent applicant: San Sakashita, Itabashi-ku, Tokyo, 174 Chome 35-58 (28
8) Dainippon Ink & Chemicals Co., Ltd. Representative: Shigeru Kuni Mura 4, Agent Address: 3-7-20 Nihonbashi, Chuo-ku, Tokyo 103 Dainippon Ink & Chemicals Co., Ltd. Telephone: Tokyo (03) 272-4511 (Dainippon Ink & Chemicals Co., Ltd.) Representative) (8
876) Patent Attorney Katsutoshi Takahashi 5, Subject of amendment 6, Contents of amendment (1) "[Means for solving the problem]" in line 9 of page 3 of the specification has been changed to "[Means for solving the problem]" means]”.

(2)明細書第4頁第10行目から第11行目における 「ビスマイヤー」を rビルスマイヤー」に 補正する。(2) In lines 10 to 11 of page 4 of the specification "Bismeyer" r Bilsmeyer” to correct.

(3)  明細書第6頁第12行目釦おける「ビスマイ
ヤー」を 「ビルスマイヤー」に 補正する。
(3) "Bissmeyer" in the button on page 6, line 12 of the specification shall be amended to "Vilsmeyer".

以   上that's all

Claims (1)

【特許請求の範囲】 一般式 ▲数式、化学式、表等があります▼ (式中、R及びR′は各々独立的に炭素原子数1〜20
の直鎖状アルキル基を表わす。) で表わされる化合物。
[Claims] General formula ▲ Numerical formula, chemical formula, table, etc. ▼ (In the formula, R and R' each independently have a carbon atom number of 1 to 20
represents a straight-chain alkyl group. ) A compound represented by
JP8693987A 1987-04-10 1987-04-10 Novel pyrimidine derivative Pending JPS63253075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8693987A JPS63253075A (en) 1987-04-10 1987-04-10 Novel pyrimidine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8693987A JPS63253075A (en) 1987-04-10 1987-04-10 Novel pyrimidine derivative

Publications (1)

Publication Number Publication Date
JPS63253075A true JPS63253075A (en) 1988-10-20

Family

ID=13900838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8693987A Pending JPS63253075A (en) 1987-04-10 1987-04-10 Novel pyrimidine derivative

Country Status (1)

Country Link
JP (1) JPS63253075A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900473A (en) * 1987-10-20 1990-02-13 Chisso Corporation Optically active alkanoyloxy 2,5-diphenyl pyrimidine and liquid crystal compositions
US4900472A (en) * 1987-10-20 1990-02-13 Chisso Corporation 2,5-diphenyl pyrimidine compounds and liquid crystal compositions
US4997942A (en) * 1988-04-25 1991-03-05 Dainippon Ink And Chemical, Inc. 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4900473A (en) * 1987-10-20 1990-02-13 Chisso Corporation Optically active alkanoyloxy 2,5-diphenyl pyrimidine and liquid crystal compositions
US4900472A (en) * 1987-10-20 1990-02-13 Chisso Corporation 2,5-diphenyl pyrimidine compounds and liquid crystal compositions
US4997942A (en) * 1988-04-25 1991-03-05 Dainippon Ink And Chemical, Inc. 2,4-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same
US5128472A (en) * 1988-04-25 1992-07-07 Dainippon Ink And Chemicals, Inc. 2,5-disubstituted pyrazine derivatives, pyrimidine derivatives, and liquid crystal containing the same

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