JPH06135902A - Production of diphenylacetylene derivative - Google Patents

Production of diphenylacetylene derivative

Info

Publication number
JPH06135902A
JPH06135902A JP29255792A JP29255792A JPH06135902A JP H06135902 A JPH06135902 A JP H06135902A JP 29255792 A JP29255792 A JP 29255792A JP 29255792 A JP29255792 A JP 29255792A JP H06135902 A JPH06135902 A JP H06135902A
Authority
JP
Japan
Prior art keywords
formula
derivative
potassium
diphenylacetylene
stilbene
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
JP29255792A
Other languages
Japanese (ja)
Inventor
Shuzo Akiyama
修三 秋山
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.)
Yamamoto Chemicals Inc
Original Assignee
Yamamoto Chemicals Inc
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 Yamamoto Chemicals Inc filed Critical Yamamoto Chemicals Inc
Priority to JP29255792A priority Critical patent/JPH06135902A/en
Publication of JPH06135902A publication Critical patent/JPH06135902A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To obtain a diphenylacetylene derivative containing OH at the nitro group and the ortho position simply and under a mild condition by reacting a stilbene derivative with a specific amount of potassium t-butoxide in a polar solvent. CONSTITUTION:A stilbene derivdtive of formula I (R1 is nitro) is reacted with >=2mol equivalent potassium t-butoxide based on the compound of formula I in a polar solvent (especially preferably dimethylformamide) to give a diphenylacetylene derivative of formula II (R2 is H or OH; R3 is H or OH with the proviso that R2 is in o-position based on R1). The stilbene derivative of formula I is treated with >=5mol potassium t-butoxide in a polar solvent to give a diphenylacetylene derivative of formula III (R4 is OH with the proviso that R4 is in o-position based on R1) (e.g. 3,3-dihydroxy-4,4'- dinitrophenylacetylene). The compounds of formula II and formula III are useful as a nonlinear optical material, an intermediate for various coloring matters, an intermediate for liquid crystal compound, etc.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明はジフェニルアセチレン誘
導体(トラン誘導体)の製造法に関する。更に詳しく
は、本発明はスチルベン誘導体から対応するジフェニル
アセチレン誘導体および/または更に水酸基の導入され
たジフェニルアセチレン誘導体を製造する新規な製造法
に関する。
FIELD OF THE INVENTION The present invention relates to a method for producing a diphenylacetylene derivative (tolan derivative). More specifically, the present invention relates to a novel method for producing a corresponding diphenylacetylene derivative and / or a hydroxyl group-introduced diphenylacetylene derivative from a stilbene derivative.

【0002】[0002]

【従来の技術】スチルベン誘導体から対応するジフェニ
ルアセチレン誘導体を製造する従来技術としては、スチ
ルベン誘導体のエチレン基を臭素で臭素化し、次いで塩
基で脱臭化水素する方法が一般的である。しかしながら
この方法は「臭素化」および「脱臭化水素」の二段階反
応であるため煩雑であり、かつ臭素化に用いられる臭素
が結果的に廃棄物になるため高価である。
2. Description of the Related Art As a conventional technique for producing a corresponding diphenylacetylene derivative from a stilbene derivative, a method of brominating the ethylene group of the stilbene derivative with bromine and then dehydrobrominating with a base is generally used. However, this method is complicated because it is a two-step reaction of "bromination" and "dehydrobromination", and bromine used for bromination eventually becomes a waste, which is expensive.

【0003】またジフェニルアセチレン誘導体の中で
も、ニトロ基およびそのオルト位に水酸基を有する化合
物は非線形光学材料、各種色素中間体、液晶化合物中間
体などとして重要な物質であるが、従来ジフェニルアセ
チレン誘導体のニトロ基のオルト位に水酸基を導入する
ことは困難である。
Among the diphenylacetylene derivatives, compounds having a nitro group and a hydroxyl group at the ortho position are important substances as nonlinear optical materials, various dye intermediates, liquid crystal compound intermediates, etc. It is difficult to introduce a hydroxyl group at the ortho position of the group.

【0004】[0004]

【発明が解決しようとする課題】本発明の目的は、スチ
ルベン誘導体から簡易かつ温和な反応条件において一段
階の反応で、対応するジフェニルアセチレン誘導体およ
び/またはさらにニトロ基のオルト位に水酸基の導入さ
れたジフェニルアセチレン誘導体を与える新規な製造法
を提供するものである。
The object of the present invention is to introduce a hydroxyl group from the stilbene derivative into the ortho position of the corresponding diphenylacetylene derivative and / or the nitro group by a one-step reaction under simple and mild reaction conditions. The present invention provides a novel method for producing a diphenylacetylene derivative.

【0005】[0005]

【課題を解決するための手段】本発明の目的は、下記一
般式(I)で表されるスチルベン誘導体を極性溶媒中、
t−ブトキシカリウムで処理することにより達成され、
下記一般式(II)で表されるジフェニルアセチレン誘
導体の少なくとも一種を一段階の反応で得ることができ
る。
The object of the present invention is to provide a stilbene derivative represented by the following general formula (I) in a polar solvent,
achieved by treatment with potassium t-butoxy,
At least one diphenylacetylene derivative represented by the following general formula (II) can be obtained by a one-step reaction.

【0006】 (式(I)、式(II)において、R1はニトロ基を示
し、R2は水素原子または水酸基を示す。旦し、R2はR
1に対しo−位に位置する。R3は水素原子又は水酸基を
示す。)スチルベン誘導体から式(II)で表されるジ
フェニルアセチレン誘導体を一段階の反応で与えられる
本発明の方法は、極性溶媒と特定の塩基を用いることに
より達成されるものである。本発明に用いられる極性溶
媒の具体例としては、ジメチルホルムアミド、ジメチル
スルホキシド、キノリン、テトラヒドロキノリン、メチ
ルピロリドン、ジメチルイミダゾリジノン、ヘキサメチ
ルホスホルアミドなどが挙げられる。好ましくは、ジメ
チルホルムアミドおよびジメチルスルホキシドが用いら
れ、特にジメチルホルムアミドが好ましい。
[0006] (Formula (I), in formula (II), R 1 is a nitro group, R 2 represents a hydrogen atom or a hydroxyl group. Dan City, R 2 is R
Located in the o-position relative to 1 . R 3 represents a hydrogen atom or a hydroxyl group. ) The method of the present invention, in which a diphenylacetylene derivative represented by the formula (II) is provided by a one-step reaction from a stilbene derivative, is achieved by using a polar solvent and a specific base. Specific examples of the polar solvent used in the present invention include dimethylformamide, dimethylsulfoxide, quinoline, tetrahydroquinoline, methylpyrrolidone, dimethylimidazolidinone and hexamethylphosphoramide. Dimethylformamide and dimethylsulfoxide are preferably used, and dimethylformamide is particularly preferable.

【0007】更に、本発明の方法は、スチルベン誘導体
を前記の極性溶媒中t−ブトキシカリウムで処理するこ
とにより、式(II)で表されるジフェニルアセチレン
誘導体が特異的に得られるものである。従って、t−ブ
トキシカリウムの代わりに、他の金属アルコキシド、例
えばメトキシナトリウム、メトキシリチウムあるいはエ
トキシナトリウムなどを用いる場合には式(II)で表
されるジフェニルアセチレン誘導体は得られない。
Further, in the method of the present invention, the diphenylacetylene derivative represented by the formula (II) is specifically obtained by treating the stilbene derivative with potassium t-butoxy in the above polar solvent. Therefore, when another metal alkoxide such as sodium methoxy, methoxylithium or sodium ethoxy is used instead of potassium t-butoxy, the diphenylacetylene derivative represented by the formula (II) cannot be obtained.

【0008】本発明の方法において、t−ブトキシカリ
ウムの使用量が、生成する式(II)化合物のR2およ
び/またはR3の種類の組成比に影響する。スチルベン
誘導体のエチレン結合をジフェニルアセチレン誘導体の
アセチレン結合に変換するためには、t−ブトキシカリ
ウムの使用量は最低限スチルベン誘導体の2モル当量が
必要である。従って、式(II)で表されるジフェニル
アセチレン誘導体のうちR2が水素である化合物を得る
には、t−ブトキシカリウムはスチルベン誘導体の2モ
ル当量以上、好ましくは3モル当量以上を使用する。t
−ブトキシカリウムの使用量がスチルベン誘導体の3モ
ル当量よりも少ないと、未反応のスチルベン化合物の残
存量が多くなる。また、t−ブトキシカリウムの使用量
がスチルベン化合物の4モル当量以上、好ましくは5モ
ル当量以上であると生成する式()のジフェニルアセチ
レン誘導体のR2および/またはR3が水酸基であるもの
の生成量が、増加する。
In the method of the present invention, the amount of potassium t-butoxy used affects the composition ratio of the types of R 2 and / or R 3 in the resulting compound of formula (II). In order to convert the ethylene bond of the stilbene derivative into the acetylene bond of the diphenylacetylene derivative, the amount of potassium t-butoxy used must be at least 2 molar equivalents of the stilbene derivative. Therefore, in order to obtain a compound of the formula (II) in which R2 is hydrogen among diphenylacetylene derivatives, potassium t-butoxy is used in an amount of 2 molar equivalents or more, preferably 3 molar equivalents or more of the stilbene derivative. t
-If the amount of potassium butoxy used is less than 3 molar equivalents of the stilbene derivative, the residual amount of unreacted stilbene compound increases. Further, the production of a diphenylacetylene derivative of the formula () in which R 2 and / or R 3 is a hydroxyl group is produced when the amount of potassium t-butoxy used is 4 molar equivalents or more, preferably 5 molar equivalents or more of the stilbene compound The amount increases.

【0009】本発明の方法において、反応機構の詳細な
解明は未完であるが、エチレン結合をアセチレン結合に
アセチレン結合に変換する反応及び水酸基が導入される
反応において、溶媒中の溶存酸素が反応の進行に関与す
る知見を得ている。本発明において、反応は室温で反応
時間数分〜数時間で完了する。反応は必要に応じて加熱
しておこなってもよい。
In the method of the present invention, the detailed elucidation of the reaction mechanism has not been completed, but in the reaction of converting an ethylene bond into an acetylene bond to an acetylene bond and the reaction of introducing a hydroxyl group, the dissolved oxygen in the solvent causes the reaction. We have the knowledge to be involved in the process. In the present invention, the reaction is completed at room temperature with a reaction time of several minutes to several hours. The reaction may be carried out by heating if necessary.

【0010】本発明の方法において、クラウンエーテル
を同時に使用すると、t−ブトキシカリウム中のカリウ
ムを捕捉することにより、t−ブトキシカリウムを活性
化する効果がある。本発明に用いられる式(I)で表さ
れるスチルベン誘導体は、公知の種々の方法、例えばBu
ll.Chem.Soc.Jpn.,46,2828(1973)に記載の方法により容
易に合成できる。
In the method of the present invention, simultaneous use of crown ether has the effect of activating potassium t-butoxy by trapping potassium in t-butoxy potassium. The stilbene derivative represented by the formula (I) used in the present invention can be prepared by various known methods such as Bu.
ll. Chem. Soc. Jpn., 46, 2828 (1973).

【0011】[0011]

【実施例】以下に実施例を示すが、本発明はこの実施例
に限定されるものではない。
EXAMPLES Examples will be shown below, but the present invention is not limited to these examples.

【0012】(実施例1) 4,4’−ジニトロジフェ
ニルアセチレン(1)および3,3’−ジヒドロキシ−
4,4’−ジニトロジフェニルアセチレン(2)
の製造 0.26g(0.96mmol)の4,4’−ジニトロ
スチルベンと30mlのジメチルホルムアミドと3.2
3g(28.7mmol)のt−ブトキシカリウムを室
温で5時間撹拌した。反応液を50mlの水に排出し、
50mlの2N塩酸を加えた後、125mlのベンゼン
で抽出した。抽出液を水洗後、無水硫酸マグネシウムで
乾燥した。次いで、抽出液より減圧下に溶媒を留去し、
残渣をシリカゲル(ワコーゲルC−200)のカラムク
ロマトグラフィーを用いて分離操作を行い、目的物
(1)と(2)を分取した。それぞれをエタノールより
再結晶して下記のごとく目的物を得た。
(Example 1) 4,4'-dinitrodiphenylacetylene (1) and 3,3'-dihydroxy-
4,4'-dinitrodiphenylacetylene (2)
Preparation of 0.26 g (0.96 mmol) of 4,4′-dinitrostilbene, 30 ml of dimethylformamide and 3.2.
3 g (28.7 mmol) potassium t-butoxy was stirred at room temperature for 5 hours. Pour the reaction solution into 50 ml of water,
After adding 50 ml of 2N hydrochloric acid, the mixture was extracted with 125 ml of benzene. The extract was washed with water and dried over anhydrous magnesium sulfate. Then, the solvent was distilled off from the extract under reduced pressure,
The residue was separated using silica gel (Wakogel C-200) column chromatography to separate the target substances (1) and (2). Each was recrystallized from ethanol to obtain the desired product as shown below.

【0013】目的物(1) (4,4’−ジニトロジフ
ェニルアセチレン) 黄色結晶 m.p.211〜214℃ 収量0.1g
(39%収率) 下記の分析結果より目的の化合物であることを確認し
た。
Target product (1) (4,4'-dinitrodiphenylacetylene) yellow crystal m.p. p. 211 ~ 214 ℃ Yield 0.1g
(39% Yield) It was confirmed from the following analysis results that the target compound was obtained.

【0014】MS(m/z): 268(M+1 H N.M.R.(CDCl3): 7.72(ppm)(4H,d,J=9.0Hz) 8.27(4H,d,J=9.0) 元素分析値 : C(%) H(%) N(%) 測定値 62.58 3.25 10.35 計算値(C14824) 62.69 3.01 10.45 なお、本化合物の赤外吸収スペクトル(Nujol)
は、対称性構造のためか2200cm-1付近にC≡Cの
特性吸収を示さなかった。
MS (m / z): 268 (M + ) 1 H N. M. R. (CDCl 3 ): 7.72 (ppm) (4H, d, J = 9.0 Hz) 8.27 (4H, d, J = 9.0) Elemental analysis value: C (%) H (%) N ( %) Measured value 62.58 3.25 10.35 Calculated value (C 14 H 8 N 2 O 4 ) 62.69 3.01 10.45 In addition, the infrared absorption spectrum (Nujol) of this compound
Did not show the characteristic absorption of C≡C in the vicinity of 2200 cm −1 probably due to the symmetric structure.

【0015】目的物(2) (3,3’−ジヒドロキシ
−4,4’−ジニトロジフェニルアセチレン) 橙色結晶 m.p.240〜243℃ 収量0.11g
(38%収率) 下記の分析結果より目的の化合物であることを確認し
た。
Target compound (2) (3,3'-dihydroxy-4,4'-dinitrodiphenylacetylene) orange crystal m. p. 240-243 ° C Yield 0.11g
(38% yield) From the following analysis results, it was confirmed that the target compound.

【0016】MS(m/z): 300(M+) 1H N.M.R.(CDCl3): 7.13(ppm)(2H,dd,J=8.8Hz,
1.5) 7.35(2H,d,1.5) 8.13(2H,d,8.8) 10.62(2H,s,OH) 元素分析値 : C(%) H(%) N(%) 測定値 56.21 3.00 9.17 計算値(C14H8N2O6) 56.00 2.69 9.33 なお、本化合物の赤外吸収スペクトル(Nujol)
は、対称性構造のためか2200cm-1付近にC Cの
特性吸収を示さなかった。
MS (m / z): 300 (M + ) 1H N.V. M. R. (CDCl3): 7.13 (ppm) (2H, dd, J = 8.8Hz,
1.5) 7.35 (2H, d, 1.5) 8.13 (2H, d, 8.8) 10.62 (2H, s, OH) Elemental analysis value: C (%) H (%) N (%) Measured value 56.21 3.00 9.17 Calculated value (C14H8N2O6) 56.00 2.69 9.33 The infrared absorption spectrum (Nujol) of this compound
Did not show the characteristic absorption of C C near 2200 cm −1 probably due to the symmetric structure.

【0017】(実施例2) 3,4’−ジヒドロキシ−
4,5’−ジニトロジフェニルアセチレンの製造 0.27g(1mmol)の3,4’−ジニトロスチル
ベンと20mlのジメチルホルムアミドと2.24g
(20mmol)のt−ブトキシカリウムを室温で2時
間撹拌した。反応液を70mlの水に排出し、これに5
0mlの2N塩酸を加えた後、125mlのベンゼンで
抽出した。抽出液を水洗後、無水硫酸マグネシウムで乾
燥した。次いで、抽出液より減圧下に溶媒を留去し、残
渣をシリカゲル(ワコーゲルC−200)のカラムクロ
マトグラフィーを用いて精製した後、更にエタノールよ
り再結晶して、0.15g(50%収率)の3,4’−
ジヒドロキシ−4,5’−ジニトロジフェニルアセチレ
ンを黄色結晶(m.p.215〜218℃)として得
た。下記の分析結果より目的の化合物であることを確認
した。
(Example 2) 3,4'-dihydroxy-
Preparation of 4,5'-dinitrodiphenylacetylene 0.27 g (1 mmol) of 3,4'-dinitrostilbene, 20 ml of dimethylformamide and 2.24 g.
(20 mmol) potassium t-butoxy was stirred at room temperature for 2 hours. The reaction solution was discharged into 70 ml of water, and 5
After adding 0 ml of 2N hydrochloric acid, the mixture was extracted with 125 ml of benzene. The extract was washed with water and dried over anhydrous magnesium sulfate. Then, the solvent was distilled off from the extract under reduced pressure, the residue was purified by column chromatography on silica gel (Wakogel C-200), and then recrystallized from ethanol to give 0.15 g (50% yield). ) 3,4'-
Dihydroxy-4,5'-dinitrodiphenylacetylene was obtained as yellow crystals (mp 215 to 218 ° C). It was confirmed from the following analysis results that the target compound was obtained.

【0018】MS(m/z) : 300(M+) IR(Nujol): 2200cm-1(C≡C) 1H N.M.R.(CDCl3): 7.11(ppm)(1H,dd,J=2.0Hz,
8.8) 7.20(1H,d,J=8.8) 7.30(1H, d,J=2.0) 7.74(1H,dd,J=2.0,8.8) 8.15(1H,d,J=8.8) 8.34(1H,d,J=2.0) 10.62(1H,OH) 10.72(1H,OH) 元素分析値 : C(%) H(%) N(%) 測定値 56.39 2.89 9.12 計算値(C14826) 56.00 2.69 9.33
MS (m / z): 300 (M + ) IR (Nujol): 2200 cm -1 (C≡C) 1H N. M. R. (CDCl3): 7.11 (ppm) (1H, dd, J = 2.0Hz,
8.8) 7.20 (1H, d, J = 8.8) 7.30 (1H, d, J = 2.0) 7.74 (1H, dd, J = 2.0, 8.8) 8.15 (1H, d, J = 8.8) 8.34 (1H, d, J = 2.0) 10.62 (1H, OH) 10.72 (1H, OH) Elemental analysis value: C ( %) H (%) N (%) Measured value 56.39 2.89 9.12 Calculated value (C 14 H 8 N 2 O 6 ) 56.00 2.69 9.33

【0019】[0019]

【発明の効果】本発明の製造法により、各種のスチルベ
ン誘導体より、対応するジフェニルアセチレン誘導体お
よび/または更に水酸基の導入されたジフェニルアセチ
レン誘導体を一段階の反応で、かつ簡便な方法で製造で
きる。
According to the production method of the present invention, a corresponding diphenylacetylene derivative and / or a diphenylacetylene derivative having a further hydroxyl group introduced can be produced from various stilbene derivatives in a one-step reaction and by a simple method.

─────────────────────────────────────────────────────
─────────────────────────────────────────────────── ───

【手続補正書】[Procedure amendment]

【提出日】平成5年4月5日[Submission date] April 5, 1993

【手続補正1】[Procedure Amendment 1]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】請求項2[Name of item to be corrected] Claim 2

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【手続補正2】[Procedure Amendment 2]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0008[Correction target item name] 0008

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0008】 本発明の方法において、t−ブトキシカ
リウムの使用量が、生成する式(II)化合物のR2
よび/またはR3の種類の組成比に影響する。スチルベ
ン誘導体のエチレン結合をジフェニルアセチレン誘導体
のアセチレン結合に変換するためには、t−ブトキシカ
リウムの使用量は最低限スチルベン誘導体の2モル当量
が必要である。従って、式(II)で表されるジフェニル
アセチレン誘導体のうち2 が水素である化合物を得る
には、t−ブトキシカリウムはスチルベン誘導体の2モ
ル当量以上、好ましくは3モル当量以上を使用する。t
−ブトキシカリウムの使用量がスチルベン誘導体の3モ
ル当量よりも少ないと、未反応のスチルベン化合物の残
存量が多くなる。また、t−ブトキシカリウムの使用量
がスチルベン化合物の4モル当量以上、好ましくは5モ
ル当量以上であると生成する式(II)のジフェニルアセ
チレン誘導体のR2および/またはR3が水酸基であるも
のの生成量が、増加する。
In the method of the present invention, the amount of potassium t-butoxy used affects the composition ratio of the types of R 2 and / or R 3 in the resulting compound of formula (II). In order to convert the ethylene bond of the stilbene derivative into the acetylene bond of the diphenylacetylene derivative, the amount of potassium t-butoxy used must be at least 2 molar equivalents of the stilbene derivative. Therefore, in order to obtain a compound in which R 2 is hydrogen among the diphenylacetylene derivatives represented by the formula (II), t-butoxy potassium is used in an amount of 2 molar equivalents or more, preferably 3 molar equivalents or more of the stilbene derivative. t
-If the amount of potassium butoxy used is less than 3 molar equivalents of the stilbene derivative, the residual amount of unreacted stilbene compound increases. When the amount of potassium t-butoxy used is 4 molar equivalents or more, preferably 5 molar equivalents or more of the stilbene compound, R 2 and / or R 3 of the diphenylacetylene derivative of the formula (II) produced is a hydroxyl group. The production amount increases.

【手続補正3】[Procedure 3]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0010[Correction target item name] 0010

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0010】 本発明の方法において、クラウンエーテ
ルを同時に使用すると、t−ブトキシカリウム中のカリ
ウムを捕捉することにより、t−ブトキシカリウムを活
性化する効果がある。本発明に用いられる式(I)で表
されるスチルベン誘導体は、公知の種々の方法、例えば
Bull.Chem.Soc.Jpn.,46,2828(1973)に記載の方法により
容易に合成できる。
In the method of the present invention, the simultaneous use of crown ether has the effect of activating potassium t-butoxy by trapping potassium in t-butoxypotassium. The stilbene derivative represented by the formula (I) used in the present invention can be prepared by various known methods, for example,
Bull.Chem.Soc.Jpn., 46 , 2828 (1973) can be easily synthesized.

【手続補正4】[Procedure amendment 4]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0012[Correction target item name] 0012

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0012】 (実施例1) 4,4’−ジニトロジフ
ェニルアセチレン(1)および3,3’−ジヒドロキシ
−4,4’−ジニトロジフェニルアセチレン(2)の
造 0.26g(0.96mmol)の4,4’−ジニトロ
スチルベンと30mlのジメチルホルムアミドと3.2
3g(28.7mmol)のt−ブトキシカリウムを室
温で5時間撹拌した。反応液を50mlの水に排出し、
50mlの2N塩酸を加えた後、125mlのベンゼン
で抽出した。抽出液を水洗後、無水硫酸マグネシウムで
乾燥した。次いで、抽出液より減圧下に溶媒を留去し、
残渣をシリカゲル(ワコーゲルC−200)のカラムク
ロマトグラフィーを用いて分離操作を行い、目的物
(1)と(2)を分取した。それぞれをエタノールより
再結晶して下記のごとく目的物を得た。
Example 1 Production of 4,4′-dinitrodiphenylacetylene (1) and 3,3′-dihydroxy-4,4′-dinitrodiphenylacetylene (2 ) 0.26 g (0 0.96 mmol) 4,4'-dinitrostilbene and 30 ml of dimethylformamide and 3.2.
3 g (28.7 mmol) potassium t-butoxy was stirred at room temperature for 5 hours. Pour the reaction solution into 50 ml of water,
After adding 50 ml of 2N hydrochloric acid, the mixture was extracted with 125 ml of benzene. The extract was washed with water and dried over anhydrous magnesium sulfate. Then, the solvent was distilled off from the extract under reduced pressure,
The residue was separated using silica gel (Wakogel C-200) column chromatography to separate the target substances (1) and (2). Each was recrystallized from ethanol to obtain the desired product as shown below.

【手続補正5】[Procedure Amendment 5]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0016[Correction target item name] 0016

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0016】 MS(m/z): 300(M+ 1 N.M.R.(CDCl3 ): 7.13(ppm)(2H,dd,J=8.8Hz,
1.5) 7.35(2H,d,1.5) 8.13(2H,d,8.8) 10.62(2H,s,OH) 元素分析値 : C(%) H(%) N(%) 測定値 56.21 3.00 9.17 計算値(14826 ) 56.00 2.69 9.33 なお、本化合物の赤外吸収スペクトル(Nujol)
は、対称性構造のためか2200cm-1 付近にC≡C
特性吸収を示さなかった。
MS (m / z): 300 (M + ) 1 H N. M. R. (CD Cl 3 ): 7.13 (ppm) (2H, dd, J = 8.8Hz,
1.5) 7.35 (2H, d, 1.5) 8.13 (2H, d, 8.8) 10.62 (2H, s, OH) Elemental analysis value: C (%) H (%) N (%) measured 56.21 3.00 9.17 calculated (C 14 H 8 N 2 O 6) 56.00 2.69 9.33 Note that the infrared absorption spectrum of the compound (Nujol)
Did not show the characteristic absorption of C≡C in the vicinity of 2200 cm −1 probably due to the symmetric structure.

【手続補正6】[Procedure correction 6]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0017[Correction target item name] 0017

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0017】 (実施例2) 3,4’−ジヒドロキシ
−4,5’−ジニトロジフェニルアセチレンの製造 0.27g(1mmol)の4,5’−ジニトロスチル
ベンと20mlのジメチルホルムアミドと2.24g
(20mmol)のt−ブトキシカリウムを室温で2時
間撹拌した。反応液を70mlの水に排出し、これに5
0mlの2N塩酸を加えた後、125mlのベンゼンで
抽出した。抽出液を水洗後、無水硫酸マグネシウムで乾
燥した。次いで、抽出液より減圧下に溶媒を留去し、残
渣をシリカゲル(ワコーゲルC−200)のカラムクロ
マトグラフィーを用いて精製した後、更にエタノールよ
り再結晶して、0.15g(50%収率)の3,4’−
ジヒドロキシ−4,5’−ジニトロジフェニルアセチレ
ンを黄色結晶(m.p.215〜218℃)として得
た。下記の分析結果より目的の化合物であることを確認
した。
[0017] (Example 2) 3,4'-dihydroxy-4,5'-dinitro diphenyl acetylene production 0.27 g (1 mmol) of 4,5 '- dimethyl formamide dinitrostilbene and 20ml and 2.24g
(20 mmol) potassium t-butoxy was stirred at room temperature for 2 hours. The reaction solution was discharged into 70 ml of water, and 5
After adding 0 ml of 2N hydrochloric acid, the mixture was extracted with 125 ml of benzene. The extract was washed with water and dried over anhydrous magnesium sulfate. Then, the solvent was distilled off from the extract under reduced pressure, the residue was purified by column chromatography on silica gel (Wakogel C-200), and then recrystallized from ethanol to give 0.15 g (50% yield). ) 3,4'-
Dihydroxy-4,5'-dinitrodiphenylacetylene was obtained as yellow crystals (mp 215 to 218 ° C). It was confirmed from the following analysis results that the target compound was obtained.

【手続補正7】[Procedure Amendment 7]

【補正対象書類名】明細書[Document name to be amended] Statement

【補正対象項目名】0018[Correction target item name] 0018

【補正方法】変更[Correction method] Change

【補正内容】[Correction content]

【0018】 MS(m/z) : 300(M+) IR(Nujol): 2200cm-1 (C≡C) 1 N.M.R.(CDCl3 ): 7.11(ppm)(1H,dd,J=2.0Hz,
8.8) 7.20(1H,d,J=8.8) 7.30(1H, d,J=2.0) 7.74(1H,dd,J=2.0,8.8) 8.15(1H,d,J=8.8) 8.34(1H,d,J=2.0) 10.62(1H,OH) 10.72(1H,OH) 元素分析値 : C(%) H(%) N(%) 測定値 56.39 2.89 9.12 計算値(C14826) 56.00 2.69 9.33
MS (m / z): 300 (M + ) IR (Nujol): 2200 cm -1 (C≡C) 1 H N. M. R. (CD Cl 3 ): 7.11 (ppm) (1H, dd, J = 2.0 Hz,
8.8) 7.20 (1H, d, J = 8.8) 7.30 (1H, d, J = 2.0) 7.74 (1H, dd, J = 2.0, 8.8) 8.15 (1H, d, J = 8.8) 8.34 (1H, d, J = 2.0) 10.62 (1H, OH) 10.72 (1H, OH) Elemental analysis value: C ( %) H (%) N (%) Measured value 56.39 2.89 9.12 Calculated value (C 14 H 8 N 2 O 6 ) 56.00 2.69 9.33

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】 下記一般式(I)で表されるスチルベン
誘導体を極性溶媒中、一般式(I)で表されるスチルベ
ン誘導体の2モル当量以上のt−ブトキシカリウムで処
理することを特徴とする下記一般式(II)で表される
ジフェニルアセチレン誘導体の製造法。 (式(I)、式(II)において、R1はニトロ基を示
し、R2は水素原子または水酸基を示す。旦し、R2はR
1に対しo−位に位置する。R3は水素原子又は水酸基を
示す。)
1. A stilbene derivative represented by the following general formula (I) is treated with 2 mol equivalent or more of potassium t-butoxide of the stilbene derivative represented by the general formula (I) in a polar solvent. A method for producing a diphenylacetylene derivative represented by the following general formula (II): (Formula (I), in formula (II), R 1 is a nitro group, R 2 represents a hydrogen atom or a hydroxyl group. Dan City, R 2 is R
Located in the o-position relative to 1 . R 3 represents a hydrogen atom or a hydroxyl group. )
【請求項2】 下記一般式(I)で表されるスチルベン
誘導体を極性溶媒中、一般式(I)で表されるスチルベ
ン誘導体の5モル当量以上のt−ブトキシカリウムで処
理することを特徴とする下記一般式(III)で表され
るジフェニルアセチレン誘導体の製造法。 (式(I)、式(II)において、R1はニトロ基を示
し、R4は水酸基を示す。旦し、R4はR1に対しo−位
に位置する。)
2. A stilbene derivative represented by the following general formula (I) is treated in a polar solvent with t-butoxypotassium at 5 molar equivalents or more of the stilbene derivative represented by the general formula (I). A method for producing a diphenylacetylene derivative represented by the following general formula (III): (In the formulas (I) and (II), R 1 represents a nitro group, R 4 represents a hydroxyl group, and R 4 is located at the o-position with respect to R 1. )
【請求項3】 極性溶媒がジメチルホルムアミドである
前記請求項(1)または(2)記載の製造法。
3. The method according to claim 1, wherein the polar solvent is dimethylformamide.
JP29255792A 1992-10-30 1992-10-30 Production of diphenylacetylene derivative Pending JPH06135902A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29255792A JPH06135902A (en) 1992-10-30 1992-10-30 Production of diphenylacetylene derivative

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29255792A JPH06135902A (en) 1992-10-30 1992-10-30 Production of diphenylacetylene derivative

Publications (1)

Publication Number Publication Date
JPH06135902A true JPH06135902A (en) 1994-05-17

Family

ID=17783312

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29255792A Pending JPH06135902A (en) 1992-10-30 1992-10-30 Production of diphenylacetylene derivative

Country Status (1)

Country Link
JP (1) JPH06135902A (en)

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