JPH01157922A - Production of nitrile compound - Google Patents

Production of nitrile compound

Info

Publication number
JPH01157922A
JPH01157922A JP31682687A JP31682687A JPH01157922A JP H01157922 A JPH01157922 A JP H01157922A JP 31682687 A JP31682687 A JP 31682687A JP 31682687 A JP31682687 A JP 31682687A JP H01157922 A JPH01157922 A JP H01157922A
Authority
JP
Japan
Prior art keywords
compound
nitrile
hydrazone
thermal decomposition
aldehyde
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
JP31682687A
Other languages
Japanese (ja)
Inventor
Yuji Akao
祐司 赤尾
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.)
Citizen Watch Co Ltd
Original Assignee
Citizen Watch 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 Citizen Watch Co Ltd filed Critical Citizen Watch Co Ltd
Priority to JP31682687A priority Critical patent/JPH01157922A/en
Publication of JPH01157922A publication Critical patent/JPH01157922A/en
Pending legal-status Critical Current

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  • Indole Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE:To safely and readily isolate the title compound which is a synthetic intermediate for agricultural chemicals and medicines, by reacting an aldehyde compound having low toxicity as a raw material with a hydrazine compound, thermally decomposing the resultant reaction product and using the thermal decomposition product. CONSTITUTION:An aldehyde compound as a raw material is reacted with a hydrazine compound (e.g., N-aminocarbazole) in the presence of an acidic cata lyst to provide a hydrazone compound, which is then thermally decomposed while being passed through a column filled with, e.g., silicone OV-1(R), at 250 deg.C temperature using nitrogen as a carrier gas. The resultant respective nitrile compound and secondary amines formed by the thermal decomposition are subsequently separated by passage through a column to afford the aimed com pound. For example, p-toluenesulfonic acid, is used as the acidic catalyst.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明はアルデヒド化合物より二l−IJル化合物を合
成する製造方法に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a manufacturing method for synthesizing a di-IJ compound from an aldehyde compound.

〔発明の背景〕[Background of the invention]

ニトリル化合物は還元するとアミンに、また加水分解す
るとアミドに化学変化する。ニトリル化合物を始めアミ
ンやアミドは農薬や唄薬の製造工程で反応物の中間体と
して多く用いられている。
Nitrile compounds chemically change to amines when reduced and to amides when hydrolyzed. Nitrile compounds, amines, and amides are often used as intermediates for reactants in the manufacturing process of agricultural chemicals and potions.

このようにニトリル化合物は中間体として重要な物質で
ある。
In this way, nitrile compounds are important substances as intermediates.

〔従来技術と問題点〕[Conventional technology and problems]

ニトリル化合物の製造方法としては不飽和結合に青酸塩
を付加する方法(1) H−CミCH+HCN +CH2=CHCN    ・
・・け)△ 有機ハロゲン化物あるいは有機ジアゾニウム塩に青酸塩
を反応させて置換する方法(2)更には有機オキシムの
脱水反応により生成する方法(3)がある。
A method for producing a nitrile compound is a method of adding cyanide to an unsaturated bond (1) H-CmiCH+HCN +CH2=CHCN ・
There is a method (2) in which an organic halide or an organic diazonium salt is reacted with cyanide to replace it, and a method (3) in which the organic oxime is produced by a dehydration reaction.

R−CH=NOH+(CH3Co)20 −+RCN 
  ・・・(3)前記(1)、(2)の製造方法におい
て青酸塩は大変毒性が高いのでこれを反応に用いること
は危険である。また、前記(3)のオキシムの脱水反応
において、反応系に無水物が存在するため、生成物はニ
トリル化合物と酸無水物の混合物となり、ニトリル化合
物のみな単離するのは困難である。
R-CH=NOH+(CH3Co)20-+RCN
(3) In the production methods of (1) and (2) above, cyanide is highly toxic, so it is dangerous to use it in the reaction. Further, in the dehydration reaction of oxime (3), since an anhydride is present in the reaction system, the product is a mixture of a nitrile compound and an acid anhydride, and it is difficult to isolate all the nitrile compound.

また、有機ハロゲン化物あるいは有機ジアゾニウム塩か
らニトリル化合物を合成する場合において、生成物に塩
が混ってしまうといった欠点があった。
Furthermore, when a nitrile compound is synthesized from an organic halide or an organic diazonium salt, there is a drawback that salt is mixed into the product.

〔発明の目的〕[Purpose of the invention]

本発明は従来の問題点を解消させ、毒性の低いアルデヒ
ド化合物からニトリル化合物を合成するニトリル化合物
の製造方法の提供を目的とする。
The present invention aims to solve the conventional problems and provide a method for producing a nitrile compound by synthesizing a nitrile compound from an aldehyde compound with low toxicity.

〔発明の構成〕[Structure of the invention]

本発明はアルデヒド化合物にヒドラジン化合物を酸性触
媒下で反応させてヒドラゾン化合物を合成し、このヒド
ラゾン化合物を熱分解しニトリル化合物と2級アミンを
合成した後、ニトリル化合物と2級アミンを分離し、ニ
トリル化合物のみを/R’ →R−C=N+H−N    → R−CミNΔ   
    ゝW R%R′、K:アルキル基、置換基を含んでも良いフェ
ニル基 〔実施例〕 (実施例1) 以下、本発明の実施例を反応式を用いて説明する。アル
デヒド化合物としてp−ジエチルアミノベンズアルデヒ
ド(A)10.0.9(5,65X10  mol )
−と、ヒドラジン化合物としてN−アミノカルバゾール
[Bl 10.3 、!i’ (5,65X 10  
mol )と、酸性触媒トしてp−トルエンスルホン酸
触媒量をベンゼンaomz  と共に加え、95〜10
5℃で生じる水を共沸除去しながら5時間反応させ、ヒ
ドラゾン化合物であるp−ジエチルアミノベンズアルデ
ヒドカルバゾールヒドラゾン(Qを合成する。
The present invention synthesizes a hydrazone compound by reacting an aldehyde compound with a hydrazine compound under an acidic catalyst, thermally decomposes this hydrazone compound to synthesize a nitrile compound and a secondary amine, and then separates the nitrile compound and the secondary amine. Nitrile compound only/R' → R−C=N+H−N → R−CmiNΔ
W R% R', K: Alkyl group, phenyl group which may contain a substituent [Example] (Example 1) Examples of the present invention will be described below using reaction formulas. p-diethylaminobenzaldehyde (A) 10.0.9 (5,65X10 mol) as an aldehyde compound
- and N-aminocarbazole [Bl 10.3,! as a hydrazine compound. i' (5,65X 10
mol) and an acidic catalyst, a catalytic amount of p-toluenesulfonic acid was added together with benzene aomz, and 95 to 10
The reaction is carried out for 5 hours while water generated at 5° C. is azeotropically removed to synthesize p-diethylaminobenzaldehyde carbazole hydrazone (Q), which is a hydrazone compound.

このときの収量は11.5g(収率59.7%)であっ
た。シリコン0v−1を充填したカラム中を窒素をキャ
リヤガスとして、・p−ジエチルアミノベンズアルデヒ
ドカルバゾールヒドラゾン(qを温度250℃で通過さ
せながら熱分解を行う。
The yield at this time was 11.5 g (yield 59.7%). Thermal decomposition is carried out while passing p-diethylaminobenzaldehyde carbazole hydrazone (q) through a column filled with silicon 0v-1 using nitrogen as a carrier gas at a temperature of 250°C.

熱分解で生成するp−ジエチルアミノベンゾニトリル(
至)とカルバゾール(ト)は、カラム通過により、それ
ぞれを単離することができる。このgきの収率は、p−
ジエチルアミノベンゾニトリル銭が55%、カルバゾー
ル[F]が55%であった。このようにアルデヒド化合
物とヒドラジン化合物から(実施例2) アルデヒド化合物として9−エチル−3−カルバゾール
カルボキシアルデヒド(Fを用いた他は実施例1と同様
の反応を行い、9−エチル−3−カルバゾールカルボキ
シアルデヒドカルバゾールヒドラゾン(Gを合成する。
p-diethylaminobenzonitrile produced by thermal decomposition (
) and carbazole (t) can be isolated by passing through a column. The yield of this g-
Diethylaminobenzonitrile was 55%, and carbazole [F] was 55%. In this way, from an aldehyde compound and a hydrazine compound (Example 2), the same reaction as in Example 1 was carried out except that 9-ethyl-3-carbazolecarboxaldehyde (F was used as the aldehyde compound), and 9-ethyl-3-carbazole Synthesize carboxaldehyde carbazole hydrazone (G).

実施領1と同様に250℃で9−エチル−3−カルバソ
ールカルボキシアルデヒドカルバゾールヒドラゾン(G
を、9−エチル−3−カルバゾールニトリル■とカルバ
ゾール正に熱分解し、カラム通過により9−エチル−3
−カルバソールニトリル■のみを単離する。このとき9
−エチル−3−(実施例3) アルデヒド化合物としてペンズアルデヒ)’ (I) 
ヲ用いた他は実施例、1と同様の反応を行い、ベンズア
ルデヒドカルバゾールヒドラゾン(J)を合成する。
9-Ethyl-3-carbasolcarboxaldehydecarbazolehydrazone (G
is thermally decomposed with 9-ethyl-3-carbazole nitrile ■, and 9-ethyl-3 is produced by passing through a column.
- Isolate only carbazol nitrile ■. At this time 9
-Ethyl-3- (Example 3) Penzaldehy)' (I) as an aldehyde compound
Benzaldehyde carbazole hydrazone (J) was synthesized by carrying out the same reaction as in Example 1, except that 1 was used.

実施例1と同様に250℃でベンズアルデヒドカルバソ
ールヒドラゾン(J)ヲペンゾニトリル■とカルバゾー
ル(ト)に熱分解した後、ベンゾニトリル■のみを単離
する。このときベンゾニトリル■の収率は55%である
As in Example 1, benzaldehyde carbazole hydrazone (J) is thermally decomposed into penzonitrile (1) and carbazole (2) at 250°C, and then only benzonitrile (2) is isolated. At this time, the yield of benzonitrile ① was 55%.

σΩ     囚 (実施例4) アルデヒド化合物としてn−ブチルアルデヒド(0を用
いた他は実施例1と同様の反応を行い、n−ブチルアル
デヒドカルバゾールヒドラゾンMを合成する。n−ブチ
ルアルデヒドカルバゾールヒドラゾンMを、実施例1と
同様に250℃で、n−プチルニl−’JルNとカルバ
ゾール(E)に熱分解した後、n−ブチルニ) IJル
ペのみを単離する。
σΩ Prisoner (Example 4) The same reaction as in Example 1 was carried out except that n-butyraldehyde (0) was used as the aldehyde compound to synthesize n-butyraldehyde carbazole hydrazone M. After thermal decomposition at 250°C in the same manner as in Example 1 into n-butyl(N) and carbazole (E), only n-butyl(N)IJ(E) is isolated.

このときのn−ブチルニトリルNの収率は55%である
The yield of n-butylnitrile N at this time was 55%.

(実施例5) アルデヒド化合物としてtcrt−ブチルアルデヒドΩ
を用いた他は実施例、1と同様の反応を行いtert−
ブチルアルデヒドカルバゾールヒドラゾン(P)を合成
する。tert−ブチルアルデヒドカルバゾールヒドラ
ゾン(P)を実施例1と同様に250℃で熱分解し、t
ert−ブチルニトリルfQ)とカルバゾール閃にした
後、tert−ブチルニトリル(Qのみを単離する。こ
のときのtert−ブチルニ) IJグリルQの収率は
50%である。
(Example 5) tcrt-butyraldehyde Ω as an aldehyde compound
The reaction was carried out in the same manner as in Example 1 except that tert-
Synthesize butyraldehyde carbazole hydrazone (P). Tert-butyraldehyde carbazole hydrazone (P) was thermally decomposed at 250°C in the same manner as in Example 1, and t
After merging with tert-butylnitrile (fQ) and carbazole, only tert-butylnitrile (Q) is isolated.The yield of tert-butylnitrile (IJ grill Q) is 50%.

(実施例6) アルデヒド化合物として1−ピレンアルデヒド(R1,
ヒドラジン化合物としてジフェニルヒドラジノ(Slを
用いた他は実施例Iと同様の反応を行い、ヒドラゾン化
合物として1−ピレンアルデヒドジフェニルヒドラゾン
mを合成する。■−ピレンアルデヒドジフェニルヒドラ
ゾン(′11を300°Cで実施例1と同様に熱分解し
、1−ピレンニトリル(財)とジフェニルアミン凹にし
た後、1−ピレンニトリルυのみを単離する。このとき
の1−ピレンニトリル(財)の収率は53%である。
(Example 6) 1-pyrenaldehyde (R1,
The same reaction as in Example I is carried out except that diphenylhydrazino (Sl) is used as the hydrazine compound, and 1-pyrenaldehyde diphenylhydrazone m is synthesized as a hydrazone compound. After thermal decomposition in the same manner as in Example 1 to form 1-pyrenenitrile (goods) and diphenylamine, only 1-pyrenenitrile υ is isolated.The yield of 1-pyrenenitrile (goods) at this time is It is 53%.

(実施例7) アルデヒド化合物にp−ジエチルアミノサリチルアルデ
ヒドW、ヒドラジン化合物としてジフェニルヒドラジン
(S)を用いた他は実施例1と同様の反応を行い、p−
ジエチルアミノサリチルアルデヒドジフェニルヒドラゾ
ン(3)を合成する。
(Example 7) The same reaction as in Example 1 was carried out except that p-diethylaminosalicylaldehyde W was used as the aldehyde compound and diphenylhydrazine (S) was used as the hydrazine compound.
Diethylaminosalicylaldehyde diphenylhydrazone (3) is synthesized.

p−ジエチルアミノサリチルアルデヒドジフェニルヒド
ラゾン閃を300℃で実施例1と同様に熱分解し、4−
ジエチルアミノ−2−ヒドロキシベンゾニトリル閏とジ
フェニルアミン(ト)にした後、4−ジエチルアミノ−
2−ヒドロキシベンゾニトリル(1)のみを単離する。
p-diethylaminosalicylaldehyde diphenylhydrazone was thermally decomposed at 300°C in the same manner as in Example 1, and 4-
After converting diethylamino-2-hydroxybenzonitrile to diphenylamine (2), 4-diethylamino-
Only 2-hydroxybenzonitrile (1) is isolated.

このときの4−ジエチルアミノ−2−ヒドロキシベンゾ
ニトリル(至)の収率〔発明の効果〕 本発明の実施により毒性の高い青酸塩を用いることなく
、毒性の低いアルデヒド化合物よりニトリル化合物を製
造することができる。
Yield of 4-diethylamino-2-hydroxybenzonitrile (maximum) at this time [Effect of the invention] By carrying out the present invention, a nitrile compound can be produced from a less toxic aldehyde compound without using a highly toxic cyanide. Can be done.

また、加熱したカラムにヒドラゾン化合物を通過させる
だけでニトリル化合物の生成および単離ができ、容易に
ニトリル化合物を製造することができる。更にアルデヒ
ド化合物を選択することにより、種々のニトリル化合物
を製造することができる。
Furthermore, a nitrile compound can be generated and isolated simply by passing a hydrazone compound through a heated column, making it possible to easily produce a nitrile compound. Furthermore, various nitrile compounds can be produced by selecting an aldehyde compound.

Claims (1)

【特許請求の範囲】[Claims]  アルデヒド化合物とヒドラジン化合物を酸性触媒中で
反応せしめヒドラゾン化合物を合成した後、該ヒドラゾ
ン化合物を熱分解し、該熱分解により生成したニトリル
化合物と2級アミンを分離し、ニトリル化合物を単離す
ることを特徴とするニトリル化合物の製造方法。
Synthesizing a hydrazone compound by reacting an aldehyde compound and a hydrazine compound in an acidic catalyst, then thermally decomposing the hydrazone compound, separating a nitrile compound and a secondary amine produced by the thermal decomposition, and isolating the nitrile compound. A method for producing a nitrile compound characterized by:
JP31682687A 1987-12-15 1987-12-15 Production of nitrile compound Pending JPH01157922A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31682687A JPH01157922A (en) 1987-12-15 1987-12-15 Production of nitrile compound

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31682687A JPH01157922A (en) 1987-12-15 1987-12-15 Production of nitrile compound

Publications (1)

Publication Number Publication Date
JPH01157922A true JPH01157922A (en) 1989-06-21

Family

ID=18081351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31682687A Pending JPH01157922A (en) 1987-12-15 1987-12-15 Production of nitrile compound

Country Status (1)

Country Link
JP (1) JPH01157922A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005035496A1 (en) * 2003-10-03 2005-04-21 Aventis Pharmaceuticals Inc. Process for the preparation of n-amino substituted heterocyclic compounds

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005035496A1 (en) * 2003-10-03 2005-04-21 Aventis Pharmaceuticals Inc. Process for the preparation of n-amino substituted heterocyclic compounds
US7112682B2 (en) 2003-10-03 2006-09-26 Aventis Pharmaceuticals Inc. Process for the preparation of N-amino substituted heterocyclic compounds
AU2004279808B2 (en) * 2003-10-03 2010-04-22 Aventis Pharmaceuticals Inc. Process for the preparation of N-amino substituted heterocyclic compounds

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