JPH01146853A - 2,5-substituted-cyclohexane-1,4-dione and production thereof - Google Patents

2,5-substituted-cyclohexane-1,4-dione and production thereof

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Publication number
JPH01146853A
JPH01146853A JP30679587A JP30679587A JPH01146853A JP H01146853 A JPH01146853 A JP H01146853A JP 30679587 A JP30679587 A JP 30679587A JP 30679587 A JP30679587 A JP 30679587A JP H01146853 A JPH01146853 A JP H01146853A
Authority
JP
Japan
Prior art keywords
cyclohexanedione
bis
ethyl
reaction
pyrrolidine
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
JP30679587A
Other languages
Japanese (ja)
Inventor
Takeo Kawabata
川端 岳生
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.)
Nippon Synthetic Chemical Industry Co Ltd
Original Assignee
Nippon Synthetic Chemical Industry 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 Nippon Synthetic Chemical Industry Co Ltd filed Critical Nippon Synthetic Chemical Industry Co Ltd
Priority to JP30679587A priority Critical patent/JPH01146853A/en
Publication of JPH01146853A publication Critical patent/JPH01146853A/en
Pending legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

NEW MATERIAL:A 2,5-bis[2-dialkylcarbamoyl)ethyl]-1,4-cyclohexanedione expressed by the formula (R is alkyl). EXAMPLE:2,5-Bis[2-(dimethylcarbamoyl)ethyl]-1,4-cyclohexanedione. USE:A raw material for tetracyanoquinodimethane(TCNQ) derivatives, etc. The TCNQ has electric conductivity in spite of an organic compound and useful as an organic semiconductor. PREPARATION:1,4-Cyclohexanedione and pyrrolidine are subjected to reaction for forming an enamine in a solvent, such as toluene. The resultant enamine is subsequently reacted with an N,N-dialkylacrylamide in a solvent, such as dioxane, to afford the aimed compound expressed by the formula. The amounts of the compounds used based on 1mol 1,4-cyclohexanedione are 2-4 mol pyrrolidine and 2-4mol N,N-dialkylacrylamide.

Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、テトラシアノキノジメタン(TCNQ)IB
s導体類の原料として有用な新規化合物を提供する。
[Detailed Description of the Invention] [Industrial Application Field] The present invention provides tetracyanoquinodimethane (TCNQ) IB
A novel compound useful as a raw material for s-conductors is provided.

[従来の技術] 7.7,8.8−テトラシアノキノジメタン(TCNQ
)は融点293.5〜296℃の黄色結晶である。この
化合物は容易に1個の電子を受は入れて安定なアニオン
ラジカルを形成し、その誘導体は極めて小さい電気抵抗
を示す。この化合物はチオフェノール、メルカプト酢酸
、ヨウ化水素などで還元されてフェニレンジマロノニト
リルとなり、これをN−ブロモスクシンイミドで酸化す
ると再びTCNQに戻る。実用化されたTCNQの用途
としてケミカルコンデンサーがある。
[Prior art] 7.7,8.8-tetracyanoquinodimethane (TCNQ
) is a yellow crystal with a melting point of 293.5-296°C. This compound easily accepts one electron to form a stable anion radical, and its derivatives exhibit extremely low electrical resistance. This compound is reduced with thiophenol, mercaptoacetic acid, hydrogen iodide, etc. to become phenylene dimalononitrile, which is oxidized with N-bromosuccinimide to return to TCNQ. Chemical capacitors are a practical application of TCNQ.

TCNQの合成法としては、たとえばマロノニトリルと
1.4−シクロヘキサンジオンを縮合させて得られる1
、4−ビス−(ジシアノメチレン)シクロヘキサンをピ
リジン中でN−ブロモスクシンイミドあるいは臭素を用
いて酸化する方法が知られている。
As a method for synthesizing TCNQ, for example, 1 obtained by condensing malononitrile and 1,4-cyclohexanedione is used.
, 4-bis-(dicyanomethylene)cyclohexane is oxidized in pyridine using N-bromosuccinimide or bromine.

[発明が解決しようとする問題点] 上記のようにTCNQは有機化合物でありながら導電性
を有するので、該化合物の他のルートによる合成法を見
出したり、該化合物に骨格が類似した導電性を有する化
合物を見出すことは、この種の有機導電性化合物の研究
、開発、さらには実用化の上で重要である。
[Problems to be solved by the invention] As mentioned above, although TCNQ is an organic compound, it has conductivity. It is important to find compounds that have this kind of organic conductive compounds in terms of research, development, and further practical application.

本発明は、有機半導体としての用途が期待できるTCN
Q誘導体の中間体として有用な新規化合物を提供するこ
とを目的とするものである。
The present invention is directed to TCN, which can be expected to be used as an organic semiconductor.
The object of the present invention is to provide a novel compound useful as an intermediate for Q derivatives.

[問題点を解決するための手段] 本発明の化合物は、次の一般式で示される2、5−ビス
〔2−(ジアルキルカルバモイル)エチル)−1,4−
シクロヘキサンジオンであり、文献未載の新規化合物で
ある。
[Means for Solving the Problems] The compound of the present invention is 2,5-bis[2-(dialkylcarbamoyl)ethyl)-1,4-
It is cyclohexanedione and is a new compound that has not been described in any literature.

〔ここでRはアルキル基を示す〕 次に、上式で示される本発明の化合物の製造法について
述べる。
[Here, R represents an alkyl group] Next, a method for producing the compound of the present invention represented by the above formula will be described.

本発明の化合物は、次の反応式に従って製造できる。The compound of the present invention can be produced according to the following reaction formula.

反応はまず1.4−シクロヘキサンジオンをピロリジン
にてエナミン化する。
In the reaction, 1,4-cyclohexanedione is first enaminated with pyrrolidine.

溶媒としては、ベンゼン、トルエン、キシレン等が使用
可能である。
Benzene, toluene, xylene, etc. can be used as the solvent.

反応温度は還流下が望ましく、また反応中に副生ずる水
を系外に除去しながら反応を進行させる。触媒は特に必
要ではないが、p−)ルエンスルホン酸などが使用でき
る。
The reaction temperature is preferably reflux, and the reaction is allowed to proceed while water by-produced during the reaction is removed from the system. Although a catalyst is not particularly necessary, p-)luenesulfonic acid and the like can be used.

反応系は、生成したジェナミンの酸化を防止する点で窒
素雰囲気下に保つのが有利である。
It is advantageous to maintain the reaction system under a nitrogen atmosphere in order to prevent oxidation of the generated genamine.

ピロリジンの使用量は、l、4−シクロヘキサンジオン
1モルに対して2〜4モルの範囲から選ばれる。
The amount of pyrrolidine used is selected from the range of 2 to 4 moles per mole of 1,4-cyclohexanedione.

反応時間は、1〜3時間が適当である。A suitable reaction time is 1 to 3 hours.

続いて、反応生成液から溶媒及び残余のピロリジンを除
去した後、N、N−ジアルキルアクリルアミドを反応さ
せる。
Subsequently, after removing the solvent and remaining pyrrolidine from the reaction product solution, N,N-dialkyl acrylamide is reacted.

溶媒としては、ジオキサン、N、N−ジメチルホルムア
ミド、エタノール、メタノール、アセトニトリルなどが
使用される。
As the solvent, dioxane, N,N-dimethylformamide, ethanol, methanol, acetonitrile, etc. are used.

N、N−ジアルキルアクリルアミドは、1.4−シクロ
ヘキサンジオン1モル当たり2〜4モルの割合で用いら
れる。
N,N-dialkyl acrylamide is used in a proportion of 2 to 4 moles per mole of 1,4-cyclohexanedione.

還流下で3〜24時間程度反応を行い、その後1.4−
シクロヘキサンジオンに対して2モル当量程度の水を添
加して1〜2時間程度、還流下で加水分解反応を続行す
ると目的物が得られる。
The reaction is carried out under reflux for about 3 to 24 hours, and then 1.4-
The desired product is obtained by adding about 2 molar equivalents of water to cyclohexanedione and continuing the hydrolysis reaction under reflux for about 1 to 2 hours.

反応後は、溶媒及び残余の原料を除去した後、クロロホ
ルム等の有機溶媒で目的物を抽出する。抽出液から溶媒
を留去し、必要に応じて常法に従って精製操作を行って
製品化する。
After the reaction, the solvent and remaining raw materials are removed, and then the target product is extracted with an organic solvent such as chloroform. The solvent is distilled off from the extract, and if necessary, a purification operation is performed according to a conventional method to produce a product.

本発明で使用するN、N−ジアルキルアクリルアミドは
、一般式C11,= ClIC0NR,で示され、アル
キル基としては、メチル基、エチル基、プロピル基、ブ
チル基、ヘキシル基等任意のものであってよい。
The N,N-dialkylacrylamide used in the present invention is represented by the general formula C11,=ClIC0NR, and the alkyl group is any one such as a methyl group, ethyl group, propyl group, butyl group, or hexyl group. good.

[作  用] かくして得られる化合物は、テトラシアノキノジメタン
誘導体等の原料として有用である。
[Function] The compound thus obtained is useful as a raw material for tetracyanoquinodimethane derivatives and the like.

[実施例] 以下、実例を挙げて本発明を更に具体的に説明する。[Example] Hereinafter, the present invention will be explained in more detail by giving examples.

実例1 1.4−シクロヘキサンジオン1129(1,0モル)
、ピロリジン213y(3,0モル)、トルエン450
m1を混合し、還流下で窒素ガスを系に導入しながら脱
水下に反応を行った。1.5時間反応後、系からトルエ
ン及び残余のピロリジンを除去し、ジオキサン400m
l、 N。
Example 1 1,4-cyclohexanedione 1129 (1,0 mol)
, pyrrolidine 213y (3.0 mol), toluene 450
ml was mixed and the reaction was carried out under reflux and dehydration while introducing nitrogen gas into the system. After reacting for 1.5 hours, toluene and remaining pyrrolidine were removed from the system, and 400ml of dioxane was added.
l, N.

N−ジメチルアクリルアミド297g(3,0モル)を
添加した。
297 g (3.0 mol) of N-dimethylacrylamide were added.

還流下で3時間反応した後、水100+alを追加し、
更に還流下で1時間反応を行った。反応終了後、反応液
を冷却し、残余のN、N−ジメチルアクリルアミド及び
ジオキサンを除去し、水500m1を添加後、クロロホ
ルムで抽出を行った。
After reacting for 3 hours under reflux, add 100+al of water,
The reaction was further carried out under reflux for 1 hour. After the reaction was completed, the reaction solution was cooled, residual N,N-dimethylacrylamide and dioxane were removed, and 500 ml of water was added, followed by extraction with chloroform.

クロロホルム層を10重量%塩酸水溶液で洗浄、更に水
で洗浄したのち、硫酸ナトリウムで脱水した。抽出液か
らクロロホルムを留去して72.49の結晶を得た。
The chloroform layer was washed with a 10% by weight aqueous hydrochloric acid solution, further washed with water, and then dehydrated with sodium sulfate. Chloroform was distilled off from the extract to obtain 72.49 crystals.

上記についてメタノール/アセトンより再結晶を行った
The above product was recrystallized from methanol/acetone.

得られた結晶について構造解析を行い次のデーターを得
た。
Structural analysis was performed on the obtained crystal, and the following data were obtained.

分子構造: 融  点       157〜158℃cm−’  
3050〜2800,1705.164G、1500.
1420’  R″KBr  1395,1340,1
265.1145’H−NMRδεBffl+、 3.
03(S、6わ、2.96(S、6H)、3.2〜1.
5(a、14H)Mass     M”    31
0[発明の効果] 本発明の化合物は、文献未載の新規物質であり、テトラ
シアノキノジメタン誘導体等の原料として産業上有用な
ものである。
Molecular structure: Melting point 157-158℃cm-'
3050-2800, 1705.164G, 1500.
1420'R''KBr 1395,1340,1
265.1145'H-NMRδεBffl+, 3.
03 (S, 6W, 2.96 (S, 6H), 3.2-1.
5 (a, 14H) Mass M” 31
0 [Effect of the Invention] The compound of the present invention is a novel substance that has not been described in any literature, and is industrially useful as a raw material for tetracyanoquinodimethane derivatives and the like.

Claims (1)

【特許請求の範囲】 1、下記一般式で表される2,5−ビス〔2−(ジアル
キルカルバモイル)エチル〕−1,4−シクロヘキサン
ジオン。 ▲数式、化学式、表等があります▼ 〔ここでRはアルキル基を示す〕 2、2,5−ビス〔2−(ジメチルカルバモイル)エチ
ル〕−1,4−シクロヘキサンジオンである特許請求の
範囲第1項記載の化合物。 3、1,4−シクロヘキサンジオンにピロリジンを反応
させ、続いてN,N−ジアルキルアクリルアミドを反応
せしめることを特徴とする下記一般式で表される2,5
−ビス〔2−(ジアルキルカルバモイル)エチル〕−1
,4−シクロヘキサンジオンの製造法。 ▲数式、化学式、表等があります▼ 〔ここでRはアルキル基を示す〕
[Claims] 1. 2,5-bis[2-(dialkylcarbamoyl)ethyl]-1,4-cyclohexanedione represented by the following general formula. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ [Here, R represents an alkyl group] Claim No. 2, which is 2,2,5-bis[2-(dimethylcarbamoyl)ethyl]-1,4-cyclohexanedione Compound according to item 1. 2,5 expressed by the following general formula, characterized by reacting 3,1,4-cyclohexanedione with pyrrolidine and then reacting with N,N-dialkyl acrylamide.
-bis[2-(dialkylcarbamoyl)ethyl]-1
, 4-cyclohexanedione manufacturing method. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ [Here, R represents an alkyl group]
JP30679587A 1987-12-03 1987-12-03 2,5-substituted-cyclohexane-1,4-dione and production thereof Pending JPH01146853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP30679587A JPH01146853A (en) 1987-12-03 1987-12-03 2,5-substituted-cyclohexane-1,4-dione and production thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP30679587A JPH01146853A (en) 1987-12-03 1987-12-03 2,5-substituted-cyclohexane-1,4-dione and production thereof

Publications (1)

Publication Number Publication Date
JPH01146853A true JPH01146853A (en) 1989-06-08

Family

ID=17961340

Family Applications (1)

Application Number Title Priority Date Filing Date
JP30679587A Pending JPH01146853A (en) 1987-12-03 1987-12-03 2,5-substituted-cyclohexane-1,4-dione and production thereof

Country Status (1)

Country Link
JP (1) JPH01146853A (en)

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