JPH0466576A - Production of optically active phenylpyrimidine derivative - Google Patents

Production of optically active phenylpyrimidine derivative

Info

Publication number
JPH0466576A
JPH0466576A JP2173140A JP17314090A JPH0466576A JP H0466576 A JPH0466576 A JP H0466576A JP 2173140 A JP2173140 A JP 2173140A JP 17314090 A JP17314090 A JP 17314090A JP H0466576 A JPH0466576 A JP H0466576A
Authority
JP
Japan
Prior art keywords
formulas
formula
optically active
catalyst
tables
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
JP2173140A
Other languages
Japanese (ja)
Inventor
Takayuki Azumai
隆行 東井
Shoji Toda
戸田 昭二
Isao Kurimoto
栗本 勲
Masayoshi Minamii
正好 南井
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP2173140A priority Critical patent/JPH0466576A/en
Publication of JPH0466576A publication Critical patent/JPH0466576A/en
Pending legal-status Critical Current

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Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

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  • Liquid Crystal Substances (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE:To obtain the title compound useful as a ferroelectric liquid crystal compound or an intermediate thereof in a high reaction rate, by reacting a specific halide with an optically active catalyst in the presence of a catalyst. CONSTITUTION:A halide shown by formula I (R1 is 1-20C alkyl; Y is O, COO or OCO; Ar is group shown by formula II to formula V; Z is Br or I; m is 0 or 1) such as 2-(4-bromophenyl)-5-decyloxypyrimidine is reacted with a com pound shown by formula VI (R2 is H, 1-20C alkyl, 2-20C alkoxyalkyl, etc.; X is H or F; n is 0-10; * is asymmetric carbon) such as (-)-2-acetoxy-3-butene in the presence of a metal catalyst (e.g. Pd-based or Ni-based catalyst) and a basic compound (e.g. alkali metal carbonate) at 100-150 deg.C to give a compound shown by formula VII such as (-)-2-[4-(3-acetoxy-1-butenyl)phenyl]-5- decyloxypyrimidine.

Description

【発明の詳細な説明】 〈産業上の利用分野〉 本発明は強誘電性液晶化合物もしくは、その中間体とし
て有用な光学活性なフェニルピリミジン誘導体の製造法
に関する。
DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing a ferroelectric liquid crystal compound or an optically active phenylpyrimidine derivative useful as an intermediate thereof.

〈従来の技術〉 一般式([1) キル基、 炭素数2〜20のアルコキシアルキル基(式中、R5は
炭素数1〜2oのアルキル基を示し、Yは−o−−−c
oo−または−〇Co−をR2は水素原子、炭素数1〜
2oのアルキル基、炭素数2〜2oのアルコキシアルキ
ル基またはアルキルカルボニル基を示す。Xは水素原子
またはフッ素原子を示し、mはOまたは1を、nは0〜
10の整数を示し、*印は不斉炭素原子を表わす。
<Prior art> General formula ([1) Kyl group, alkoxyalkyl group having 2 to 20 carbon atoms (in the formula, R5 represents an alkyl group having 1 to 2 o carbon atoms, and Y is -o---c
oo- or -〇Co-, R2 is a hydrogen atom, carbon number 1-
It represents a 2o alkyl group, an alkoxyalkyl group having 2 to 2o carbon atoms, or an alkylcarbonyl group. X represents a hydrogen atom or a fluorine atom, m represents O or 1, and n represents 0 to 1.
An integer of 10 is shown, and the * mark represents an asymmetric carbon atom.

で示される光学活性なフェニルピリミジン誘導体は、強
誘電性液晶化合物もしくはその中間体として有用である
。この光学活性なフェニルピリミジン誘導体(III)
は、光学活性な側鎖とコア部が直接炭素−炭素結合して
いるものであり、このような結合様式を有するフェニル
ピリミ1.;ン誘導体は、化合物のみならずその一般的
な型造法ムこつぃてもあまり知られていない 〈発明が解決しようとする課題〉 このようなことがら、強誘電性液晶化合物もしくハソノ
中間体として有用な光学活性なフェニルピリミジン誘導
体の優れた製造方法が望まれていた。
The optically active phenylpyrimidine derivative represented by is useful as a ferroelectric liquid crystal compound or an intermediate thereof. This optically active phenylpyrimidine derivative (III)
is one in which the optically active side chain and the core part are directly bonded to carbon-carbon, and phenylpyrimi 1. has such a bonding mode. However, not only the compound but also the general molding method thereof is not well known. (Problem to be solved by the invention) An excellent method for producing optically active phenylpyrimidine derivatives useful as phenylpyrimidine derivatives has been desired.

〈課題を解決するための手段〉 本発明者らは、上記、光学活性なフェニルピリミジン誘
導体の製造法について鋭意検削の結果、本発明に至った
<Means for Solving the Problems> The present inventors have arrived at the present invention as a result of intensive research into the method for producing the above-mentioned optically active phenylpyrimidine derivative.

すなわち、本発明は、−船人(1) %式%(1) (式中、R,は炭素数1〜2oのアルキル基を示し、Y
は−〇−−coo−または−oc〇−をZは臭素または
沃素原子を示し、mば0また1才lである。) でホされるハロゲン化物と一般式(n)(式中、R2は
水素原子、炭素数1〜20のアルキル基、炭素数2〜2
0のアルコキシアルキル基またはアルキルカルボニル基
を示し、Xは水素原子またはフッ素原子を示し、nはO
〜]Oの整数を示し、*印は不斉炭素原子を表わす。)
で示される光学活性なアルコール誘導体とを、触媒の存
在下、反応させることにより、前記−船人(I[I)で
示される光学活性なフェニルピリミジン誘導体を得る製
造法を提供するものである。
That is, the present invention provides - Shipman (1) % formula % (1) (wherein, R represents an alkyl group having 1 to 2 carbon atoms, and Y
is -〇--coo- or -oc〇-, Z represents a bromine or iodine atom, and m is 0 or 1. ) and the general formula (n) (wherein, R2 is a hydrogen atom, an alkyl group having 1 to 20 carbon atoms, and 2 to 2 carbon atoms)
0 represents an alkoxyalkyl group or an alkylcarbonyl group, X represents a hydrogen atom or a fluorine atom, and n represents O
~] represents an integer of O, and * represents an asymmetric carbon atom. )
The present invention provides a production method for obtaining an optically active phenylpyrimidine derivative represented by the above-mentioned -Funenin (I[I) by reacting the optically active alcohol derivative represented by the following in the presence of a catalyst.

以下、本発明について詳しく説明する。The present invention will be explained in detail below.

−C式(III)で示される光学活性なフェニルピノミ
ジン誘導体は、−船人(1)で示されるハロゲン化物と
、−m式(It)で示される光学活性なアルコール誘導
体とを金属触媒と塩基性物質の存在下に反応させること
により得られる。
The optically active phenylpinomidine derivative represented by the -C formula (III) is prepared by combining a halide represented by the -Funenin (1) and an optically active alcohol derivative represented by the -m formula (It) with a metal catalyst. Obtained by reaction in the presence of a basic substance.

上記−C式(1)および(II)で示される原料化合物
は、文献記載の方法に本して製造することができる。上
記反応に用いる光学活性なアルコル誘導体(II)の使
用量は、ハロゲン化物(1)に対して通常0.9〜10
侑当量であるが好ましくは、1〜3倍当量である。
The starting compounds represented by the above -C formulas (1) and (II) can be produced by methods described in literature. The amount of the optically active alcohol derivative (II) used in the above reaction is usually 0.9 to 10% relative to the halide (1).
It is preferably 1 to 3 times equivalent.

上記反応に用いられる金属触媒としては、パラジウム系
では塩化パラジウム、酢酸パラジウム、トリフェニルホ
スフィンパラジウム錯体、パラジウム/炭素などが用い
られ、ニッケル系およびロジウム系についても前記と同
様な触媒が用いられる。
As the metal catalyst used in the above reaction, palladium-based catalysts include palladium chloride, palladium acetate, triphenylphosphine palladium complex, palladium/carbon, and the like, and nickel-based and rhodium-based catalysts are also used.

これらの金属触媒の使用量は、原料ハロゲン化物(1)
に対して1o−3〜1o−1倍当量の範囲である。
The amount of these metal catalysts used is the raw material halide (1)
The range is 10-3 to 10-1 times the equivalent amount.

この反応では上記金属触媒の他に、助触媒として、3価
のリン化合物または3価のヒ素化合物が必要であり、そ
れらとしては、−船人(IV)23−貝−、(IV) (式中、Mはリン原子またはヒ素原子を示し、R5、R
4およびR3は同一または相異なり、アルキル基、アリ
ール基、アルコキシ基、アリールオキシ基またはハロゲ
ン原子を示す、) で示される化合物であって、具体的にはトリーn−ブチ
ルホスフィン、トリフェニルホスフィン、トリーロート
リルホスフィン、トリー〇−トリルホスファイト、三塩
化リン、トリフェニルヒ素などが例示される。
In addition to the above-mentioned metal catalyst, this reaction requires a trivalent phosphorus compound or a trivalent arsenic compound as a co-catalyst. In the formula, M represents a phosphorus atom or an arsenic atom, R5, R
4 and R3 are the same or different and represent an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or a halogen atom), specifically tri-n-butylphosphine, triphenylphosphine, Examples include tri-rotolylphosphine, tri-tolylphosphite, phosphorus trichloride, triphenyl arsenic, and the like.

これらのリン化合物またはヒ素化合物の使用量は、上記
の金属触媒に対して0.5〜50倍当量、好ましくは1
0〜30倍当量である。
The amount of these phosphorus compounds or arsenic compounds used is 0.5 to 50 times equivalent to the above metal catalyst, preferably 1
It is 0 to 30 times equivalent.

前記塩基性物質としては、アルカリ金属の炭酸塩、カル
ボン酸塩、アルコキサイド、水酸化物、有機塩基等が挙
げられ、好ましくは、アルカリ金属の炭酸塩または3級
アミン(有機塩基)が好ましく用いられ、これらとして
は炭酸ナトリウム、炭酸水素ナトリウム、トリエチルア
ミン、ジ−イソプロピルエチルアミン、トリーn−ブチ
ルアミン、N、N、N’ 、N  −テトラメチルエチ
レンジアミン、ジメチルアニリンなどが例示される。
Examples of the basic substance include alkali metal carbonates, carboxylates, alkoxides, hydroxides, organic bases, etc., and alkali metal carbonates or tertiary amines (organic bases) are preferably used. Examples of these include sodium carbonate, sodium hydrogencarbonate, triethylamine, di-isopropylethylamine, tri-n-butylamine, N,N,N',N-tetramethylethylenediamine, and dimethylaniline.

塩基性物質の使用量は、ハロゲン化物(1)に対して1
〜5倍当量である。
The amount of basic substance used is 1 for halide (1).
~5 times equivalent.

必要により、例えばアセトニトリル、テトラヒドロフラ
ン、N、N−ジメチルホルムアミド、ヘキサメチルホス
ホリルアミド、N−メチルピロリドン、メタノールなど
を反応溶媒として使用することもできる。
If necessary, for example, acetonitrile, tetrahydrofuran, N,N-dimethylformamide, hexamethylphosphorylamide, N-methylpyrrolidone, methanol, etc. can be used as a reaction solvent.

これらの反応溶媒の使用量は特に制限されない。The amount of these reaction solvents used is not particularly limited.

尚、本反応は通常窒素、アルゴン等の不活性ガス中で行
われる。
Note that this reaction is usually carried out in an inert gas such as nitrogen or argon.

本方法においては、反応温度を高めることにより目的と
する光学活性なフェニルピリミジン誘導体(I[l)の
収率を向上させることができるが、あまり高温では副生
物が増加するので、通常反応温度は15〜190°Cで
あり、好ましくは100〜150°Cである。
In this method, the yield of the desired optically active phenylpyrimidine derivative (I[l) can be improved by increasing the reaction temperature, but if the temperature is too high, by-products will increase, so the reaction temperature is usually The temperature is 15-190°C, preferably 100-150°C.

反応終了後、抽出、蒸留、再結晶等の通常の手段により
目的化合物(I[l)を得ることができる。
After the reaction is completed, the target compound (I[l) can be obtained by conventional means such as extraction, distillation, recrystallization, etc.

〈発明の効果〉 本発明により一般式(III)で示される光学活性なフ
ェニルピリミジン誘導体を効率よく製造することができ
、該誘導体は強誘電性液晶もしくはその中間体として有
用である。
<Effects of the Invention> According to the present invention, an optically active phenylpyrimidine derivative represented by the general formula (III) can be efficiently produced, and the derivative is useful as a ferroelectric liquid crystal or an intermediate thereof.

〈実施例〉 以下、実施例により本発明を更に詳細に説明するが、本
発明はこれら実施例に限定されるものではない。
<Examples> Hereinafter, the present invention will be explained in more detail with reference to Examples, but the present invention is not limited to these Examples.

実施例1 攪拌装置、温度計を装着した4つロフラスコに、2−(
4−ブロモフェニル)−5−デシルオキシピリミジン7
.8g (0,02モル)、(−)−2トリウム5gお
よびN−メチルピロリドン10dを仕込み、窒素雰囲気
中トリフェニルホスフィン0.16gと酢酸パラジウム
0.06gを加えて、110〜120°Cで20時間加
熱攪拌した。
Example 1 2-(
4-Bromophenyl)-5-decyloxypyrimidine 7
.. 8 g (0.02 mol), 5 g of (-)-2 thorium and 10 d of N-methylpyrrolidone were charged, 0.16 g of triphenylphosphine and 0.06 g of palladium acetate were added in a nitrogen atmosphere, and the mixture was heated at 110 to 120°C for 20 The mixture was heated and stirred for hours.

反応終了後、反応混合物を水200dに注入し、トルエ
ン200dで抽出した。得られたトルエン層は水洗のの
ち、減圧上濃縮して黒かっ色の残渣を得た。
After the reaction was completed, the reaction mixture was poured into 200 d of water and extracted with 200 d of toluene. The obtained toluene layer was washed with water and then concentrated under reduced pressure to obtain a brownish black residue.

これをシリカゲルカラムクロマトグラフィー(溶離液:
トルエンー酢酸エチル)にて精製して、(−)−2−、
(4−(3−アセトキシ−1−ブテニル)フェニル)−
5−デシルオキシピリミジン(I[[−1)  3.6
g (収率42%)を得た。
This was subjected to silica gel column chromatography (eluent:
Purification with toluene-ethyl acetate) to give (-)-2-,
(4-(3-acetoxy-1-butenyl)phenyl)-
5-decyloxypyrimidine (I[[-1) 3.6
g (yield 42%) was obtained.

(〔α〕シ’=  3.1  (C= 10. CHC
l5 ) 1実施例2〜t3 実施例1の2−(4−ブロモフェニル)−5デシルオキ
シピリミジンおよび8−ブテン−1オールを表−1に示
す化合物に代える以外は実施例1に準して、反応、後処
理をおこない、表−1に示す結果を得た。
([α] C'= 3.1 (C= 10. CHC
l5) 1 Examples 2 to t3 The same procedure as in Example 1 was carried out except that 2-(4-bromophenyl)-5decyloxypyrimidine and 8-buten-1ol in Example 1 were replaced with the compounds shown in Table 1. , reaction, and post-treatment were performed, and the results shown in Table 1 were obtained.

Claims (1)

【特許請求の範囲】[Claims] (1)一般式 R_1−(Y)_m−A_r−Z (式中、R_1は炭素数1〜20のアルキル基を、Yは
−O−、−COO−または−OCO−を示し、Arは、
▲数式、化学式、表等があります▼、▲数式、化学式、
表等があります▼、 ▲数式、化学式、表等があります▼または▲数式、化学
式、表等があります▼を示し、 Zは臭素または沃素原子を示し、mは0または1である
。) で示されるハロゲン化物と一般式 ▲数式、化学式、表等があります▼ (式中、R_2は水素原子、炭素数1〜20のアルキル
基、炭素数2〜20のアルコキシアルキル基またはアル
キルカルボニル基を示し、Xは水素原子またはフッ素原
子を示し、nは0〜10の整数を示し、*印は不斉炭素
原子を表わす。) で示される光学活性なアルコール誘導体とを、触媒の存
在下、反応させることを特徴とする一般式▲数式、化学
式、表等があります▼ (式中、R_1、R_2、X、Y、Ar、m、n、およ
び*印は前記と同じ意味を表わす。) で示される光学活性なフェニルピリミジン誘導体の製造
法。
(1) General formula R_1-(Y)_m-A_r-Z (wherein, R_1 represents an alkyl group having 1 to 20 carbon atoms, Y represents -O-, -COO- or -OCO-, and Ar is
▲There are mathematical formulas, chemical formulas, tables, etc.▼, ▲Mathematical formulas, chemical formulas,
There are tables, etc. ▼, ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼, Z indicates a bromine or iodine atom, and m is 0 or 1. ) and the general formula ▲ Numerical formulas, chemical formulas, tables, etc. , X represents a hydrogen atom or a fluorine atom, n represents an integer from 0 to 10, and the * mark represents an asymmetric carbon atom.) in the presence of a catalyst, There are general formulas ▲mathematical formulas, chemical formulas, tables, etc. that are characterized by reactions▼ (In the formulas, R_1, R_2, The method for producing the optically active phenylpyrimidine derivative shown.
JP2173140A 1990-06-29 1990-06-29 Production of optically active phenylpyrimidine derivative Pending JPH0466576A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2173140A JPH0466576A (en) 1990-06-29 1990-06-29 Production of optically active phenylpyrimidine derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2173140A JPH0466576A (en) 1990-06-29 1990-06-29 Production of optically active phenylpyrimidine derivative

Publications (1)

Publication Number Publication Date
JPH0466576A true JPH0466576A (en) 1992-03-02

Family

ID=15954860

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2173140A Pending JPH0466576A (en) 1990-06-29 1990-06-29 Production of optically active phenylpyrimidine derivative

Country Status (1)

Country Link
JP (1) JPH0466576A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211694B4 (en) * 1992-04-08 2006-06-01 Merck Patent Gmbh Liquid crystalline compounds

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4211694B4 (en) * 1992-04-08 2006-06-01 Merck Patent Gmbh Liquid crystalline compounds

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