JPH0967328A - Production of 1,6-dioxyiminohexane - Google Patents

Production of 1,6-dioxyiminohexane

Info

Publication number
JPH0967328A
JPH0967328A JP22012995A JP22012995A JPH0967328A JP H0967328 A JPH0967328 A JP H0967328A JP 22012995 A JP22012995 A JP 22012995A JP 22012995 A JP22012995 A JP 22012995A JP H0967328 A JPH0967328 A JP H0967328A
Authority
JP
Japan
Prior art keywords
nitrosocyclohexane
reaction
dioxyiminohexane
raw material
component
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
JP22012995A
Other languages
Japanese (ja)
Inventor
Noboru Kakeya
登 掛谷
Koji Abe
浩司 安部
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP22012995A priority Critical patent/JPH0967328A/en
Publication of JPH0967328A publication Critical patent/JPH0967328A/en
Pending legal-status Critical Current

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

Abstract

PROBLEM TO BE SOLVED: To easily produce the subject compound useful as a production raw material for hexamethylenediamine which is a raw material for nylon-66 from an easily available raw material in high yield. SOLUTION: The objective compound is produced by reacting (A) 1- formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane with (B) an inorganic acid (e.g. hydrochloric acid) and/or (C) hydroxylamine. The reaction is preferably carried out by using 10<-3> to 1 equivalent of the component B or 1-10 equivalent of the component C based on 1 equivalent of the component A at a reaction temperature of 70-100 deg.C in a solvent such as ethanol. The component A is preferably produced e.g. by the addition reaction of formyl nitrite to cyclohexene.

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1,6−ジオキシイミノ
ヘキサンの新規な製造法に関する。1,6−ジオキシイ
ミノヘキサンは、有用な工業用樹脂であるナイロン−6
6の原料であるヘキサメチレンジアミンの製造原料とし
て、また各種化学薬品の原料及び中間体として有用な化
合物である。
FIELD OF THE INVENTION The present invention relates to a novel process for producing 1,6-dioxyiminohexane. 1,6-dioxyiminohexane is a useful industrial resin, nylon-6.
It is a compound useful as a raw material for producing hexamethylenediamine, which is the raw material of No. 6, and as a raw material and an intermediate for various chemicals.

【0002】[0002]

【従来の技術】1,6−ジオキシイミノヘキサンを製造
する方法としては次のようにいくつかの方法が知られて
いる。しかしながら、(1) シクロヘキセンヒドロペルオ
キシドを光分解する方法(J. Am. Chem. Soc., 80, 306
4(1958) 参照)はシクロヘキセンから見た全收率が低
く、(2) シクロヘキシルナイトライトを光分解する方法
(J. Org. Chem., 27,2918(1962)参照)はシクロヘキシ
ルナイトライト基準の收率が1%と非常に低く、(3) シ
クロヘキセンをオゾン分解する方法(DE 2207700参照)
は有害なオゾンを用いなければならないという問題を有
している。更に(4)1,1,6,6−テトラエトキシヘ
キサンを加水分解してオキシム化する方法(Bull. Che
m. Soc. Jpn., 35, 986(1962)参照)には原料の1,
1,6,6−テトラエトキシヘキサンの合成が容易では
ない上に1,6−ジオキシイミノヘキサンの全收率も低
いという問題がある。このように公知の1,6−ジオキ
シイミノヘキサンの製造法はいずれも工業的に優れた方
法であるとは言い難い。
2. Description of the Related Art As a method for producing 1,6-dioxyiminohexane, several methods are known as follows. However, (1) a method of photolyzing cyclohexene hydroperoxide (J. Am. Chem. Soc., 80, 306
4 (1958)) has a low total yield as seen from cyclohexene. The yield is very low at 1%, and (3) a method for ozonolysis of cyclohexene (see DE 2207700).
Has the problem of having to use harmful ozone. Further, (4) A method of hydrolyzing 1,1,6,6-tetraethoxyhexane to form an oxime (Bull. Che.
m. Soc. Jpn., 35, 986 (1962)).
There is a problem that the synthesis of 1,6,6-tetraethoxyhexane is not easy and the total yield of 1,6-dioxyiminohexane is low. As described above, it is difficult to say that all of the known methods for producing 1,6-dioxyiminohexane are industrially excellent methods.

【0003】[0003]

【発明が解決しようとする課題】本発明は、ヘキサメチ
レンジアミンの製造原料として有用な1,6−ジオキシ
イミノヘキサンを、入手容易な原料を用いて簡単にしか
も高收率で製造できる方法を提供することを課題とする
ものである。
DISCLOSURE OF THE INVENTION The present invention provides a method for producing 1,6-dioxyiminohexane, which is useful as a raw material for producing hexamethylenediamine, easily and at a high yield by using an easily available raw material. The challenge is to provide.

【0004】[0004]

【課題を解決するための手段】本発明の課題は、1−ホ
ルミルオキシ−2−ニトロソシクロヘキサン又は1−ヒ
ドロキシ−2−ニトロソシクロヘキサンに無機酸及び/
又はヒドロキシルアミンを反応させることを特徴とする
1,6−ジオキシイミノヘキサンの製法によって達成さ
れる。
The object of the present invention is to provide 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane with an inorganic acid and / or
Alternatively, it is achieved by a method for producing 1,6-dioxyiminohexane characterized by reacting with hydroxylamine.

【0005】以下に本発明を詳しく説明する。1−ホル
ミルオキシ−2−ニトロソシクロヘキサン及び1−ヒド
ロキシ−2−ニトロソシクロヘキサンは公知の方法によ
り製造することができる。例えば、1−ホルミルオキシ
−2−ニトロソシクロヘキサンはシクロヘキセンにホル
ミルナイトライトを付加させる方法(J. Am. Chem. So
c., 90, 6481(1968) 参照)により、また1−ヒドロキ
シ−2−ニトロソシクロヘキサンは1−ホルミルオキシ
−2−ニトロソシクロヘキサンに水酸化カリウムを作用
させる方法(TetrahedronLett., 3303(1966) 参照)に
よって容易に製造される。
The present invention will be described in detail below. 1-Formyloxy-2-nitrosocyclohexane and 1-hydroxy-2-nitrosocyclohexane can be produced by known methods. For example, 1-formyloxy-2-nitrosocyclohexane is a method of adding formyl nitrite to cyclohexene (J. Am. Chem. So.
c., 90, 6481 (1968)) and 1-hydroxy-2-nitrosocyclohexane with 1-formyloxy-2-nitrosocyclohexane reacted with potassium hydroxide (see Tetrahedron Lett., 3303 (1966)). Easily manufactured by.

【0006】無機酸としては、塩酸、硫酸、リン酸等が
用いられるが、中でも塩酸が好ましい。無機酸の使用量
はモノマーに換算した1−ホルミルオキシ−2−ニトロ
ソシクロヘキサン又は1−ヒドロキシ−2−ニトロソシ
クロヘキサン1当量に対して通常10-4〜10当量、好
ましくは10-3〜1当量である。
As the inorganic acid, hydrochloric acid, sulfuric acid, phosphoric acid and the like are used, and hydrochloric acid is preferable among them. The amount of the inorganic acid used is usually 10 −4 to 10 equivalents, preferably 10 −3 to 1 equivalents, relative to 1 equivalent of 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane converted to a monomer. is there.

【0007】ヒドロキシルアミンは、通常、塩酸塩、硫
酸塩又はリン酸塩の形態で使用される。その使用量はモ
ノマーに換算した1−ホルミルオキシ−2−ニトロソシ
クロヘキサン又は1−ヒドロキシ−2−ニトロソシクロ
ヘキサン1当量に対して、通常0.1〜20当量、好ま
しくは1〜10当量である。
Hydroxylamine is usually used in the form of its hydrochloride, sulphate or phosphate. The amount used is usually 0.1 to 20 equivalents, preferably 1 to 10 equivalents, relative to 1 equivalent of 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane converted to a monomer.

【0008】1−ホルミルオキシ−2−ニトロソシクロ
ヘキサン又は1−ヒドロキシ−2−ニトロソシクロヘキ
サンと無機酸及び/又はヒドロキシルアミンとの反応
は、例えば通常の攪拌装置を備えた反応器を用いて、常
圧又は加圧下で液相で行われる。このとき、反応温度は
高くても差し支えないが、通常50〜150℃、好まし
くは70〜100℃である。
The reaction of 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane with an inorganic acid and / or hydroxylamine is carried out, for example, by using a reactor equipped with a conventional stirring device at atmospheric pressure. Alternatively, it is carried out in the liquid phase under pressure. At this time, the reaction temperature may be high, but is usually 50 to 150 ° C, preferably 70 to 100 ° C.

【0009】反応溶媒は特に限定されるものではない
が、メタノール、エタノール、プロパノール等の炭素数
1〜4の脂肪族低級アルコールや水が、1−ホルミルオ
キシ−2−ニトロソシクロヘキサン又は1−ヒドロキシ
−2−ニトロソシクロヘキサンに対して通常1〜500
重量倍、好ましくは1〜300重量倍使用される。これ
ら溶媒は単独で用いても混合して用いても差し支えな
い。反応後、生成した1,6−ジオキシイミノヘキサン
は通常の抽出や晶析により容易に分離精製される。
Although the reaction solvent is not particularly limited, aliphatic lower alcohols having 1 to 4 carbon atoms such as methanol, ethanol and propanol and water are used as 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-. Usually 1 to 500 for 2-nitrosocyclohexane
It is used by weight, preferably 1 to 300 times by weight. These solvents may be used alone or in combination. After the reaction, the produced 1,6-dioxyiminohexane is easily separated and purified by usual extraction and crystallization.

【0010】[0010]

【実施例】次に、実施例を挙げて本発明を具体的に説明
する。なお、生成物は 1H−NMR、13C−NMR、I
R、MSにより同定し、その收率(モル%)はモノマー
に換算した1−ホルミルオキシ−2−ニトロソシクロヘ
キサン又は1−ヒドロキシ−2−ニトロソシクロヘキサ
ンに対して求めた。
Next, the present invention will be described specifically with reference to examples. The products were 1 H-NMR, 13 C-NMR, I
It was identified by R and MS, and the yield (mol%) was determined for 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane converted into the monomer.

【0011】実施例1 内容積200mlの三口フラスコに、水−メタノール混
合溶媒60ml(水:メタノール=5:7)及びtrans
−1−ホルミルオキシ−2−ニトロソシクロヘキサンダ
イマー1.0g(3.18mmol)を取り、ヒドロキ
シルアミン塩酸塩0.885g(12.7mmol)を
加えて、常圧下で攪拌・還流しながら1時間反応を行っ
た。反応後、反応液を液体クロマトグラフィーで分析し
たところ、1,6−ジオキシイミノヘキサンが收率3
8.0%で生成していた。
Example 1 In a three-necked flask having an internal volume of 200 ml, 60 ml of water-methanol mixed solvent (water: methanol = 5: 7) and trans.
1.0 g (3.18 mmol) of -1-formyloxy-2-nitrosocyclohexane dimer was taken, 0.885 g (12.7 mmol) of hydroxylamine hydrochloride was added, and the reaction was continued for 1 hour while stirring and refluxing under normal pressure. went. After the reaction, the reaction solution was analyzed by liquid chromatography to find that the yield of 1,6-dioxyiminohexane was 3
It was produced at 8.0%.

【0012】実施例2 内容積200mlの三口フラスコに、水−メタノール混
合溶媒40ml(水:メタノール=1:1)及びtrans
−1−ホルミルオキシ−2−ニトロソシクロヘキサンダ
イマー0.314g(1.0mmol)を取り、濃塩酸
0.5mlを加えて、常圧下で攪拌・還流しながら2時
間反応を行った。反応後、反応液を液体クロマトグラフ
ィーで分析したところ、1,6−ジオキシイミノヘキサ
ンが收率28.8%で生成していた。
Example 2 A three-necked flask having an internal volume of 200 ml was charged with 40 ml of a water-methanol mixed solvent (water: methanol = 1: 1) and trans.
0.314 g (1.0 mmol) of -1-formyloxy-2-nitrosocyclohexane dimer was taken, 0.5 ml of concentrated hydrochloric acid was added, and the reaction was carried out for 2 hours while stirring and refluxing under normal pressure. After the reaction, the reaction liquid was analyzed by liquid chromatography to find that 1,6-dioxyiminohexane was produced at a yield of 28.8%.

【0013】実施例3 内容積200mlの三口フラスコに、水−メタノール混
合溶媒40ml(水:メタノール=1:1)及びtrans
−1−ヒドロキシ−2−ニトロソシクロヘキサンダイマ
ー0.258g(1.00mmol)を取り、ヒドロキ
シルアミン塩酸塩1.39g(20.0mmol)を加
えて、常圧下で攪拌・還流しながら2時間反応を行っ
た。反応後、反応液を液体クロマトグラフィーで分析し
たところ、1,6−ジオキシイミノヘキサンが收率2
9.9%で生成していた。
Example 3 A three-necked flask having an internal volume of 200 ml was charged with 40 ml of a water-methanol mixed solvent (water: methanol = 1: 1) and trans.
0.258 g (1.00 mmol) of -1-hydroxy-2-nitrosocyclohexane dimer was taken, 1.39 g (20.0 mmol) of hydroxylamine hydrochloride was added, and the reaction was carried out for 2 hours while stirring and refluxing under normal pressure. It was After the reaction, the reaction solution was analyzed by liquid chromatography to find that the yield of 1,6-dioxyiminohexane was 2
It was produced at 9.9%.

【0014】実施例4 内容積200mlの三口フラスコに、水−メタノール混
合溶媒70ml(水:メタノール=2:5)及びtrans
−1−ヒドロキシ−2−ニトロソシクロヘキサンダイマ
ー0.65g(2.52mmol)を取り、濃塩酸1.
0mlを加えて、常圧下で攪拌・還流しながら2時間反
応を行った。反応後、反応液を液体クロマトグラフィー
で分析したところ、1,6−ジオキシイミノヘキサンが
收率32.8%で生成していた。
Example 4 A three-necked flask having an internal volume of 200 ml was charged with 70 ml of a water-methanol mixed solvent (water: methanol = 2: 5) and trans.
Taking 0.65 g (2.52 mmol) of -1-hydroxy-2-nitrosocyclohexane dimer, concentrated hydrochloric acid 1.
0 ml was added, and the reaction was performed for 2 hours while stirring and refluxing under normal pressure. After the reaction, the reaction liquid was analyzed by liquid chromatography to find that 1,6-dioxyiminohexane was produced at a yield of 32.8%.

【0015】[0015]

【発明の効果】本発明により、ヘキサメチレンジアミン
の製造原料として有用な1,6−ジオキシイミノヘキサ
ンを、入手容易な原料から簡単にしかも高收率で製造す
ることができる。
INDUSTRIAL APPLICABILITY According to the present invention, 1,6-dioxyiminohexane, which is useful as a raw material for producing hexamethylenediamine, can be easily produced from a readily available raw material with a high yield.

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 1−ホルミルオキシ−2−ニトロソシク
ロヘキサン又は1−ヒドロキシ−2−ニトロソシクロヘ
キサンに無機酸及び/又はヒドロキシルアミンを反応さ
せることを特徴とする1,6−ジオキシイミノヘキサン
の製法。
1. A method for producing 1,6-dioxyiminohexane, which comprises reacting 1-formyloxy-2-nitrosocyclohexane or 1-hydroxy-2-nitrosocyclohexane with an inorganic acid and / or hydroxylamine.
JP22012995A 1995-08-29 1995-08-29 Production of 1,6-dioxyiminohexane Pending JPH0967328A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22012995A JPH0967328A (en) 1995-08-29 1995-08-29 Production of 1,6-dioxyiminohexane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22012995A JPH0967328A (en) 1995-08-29 1995-08-29 Production of 1,6-dioxyiminohexane

Publications (1)

Publication Number Publication Date
JPH0967328A true JPH0967328A (en) 1997-03-11

Family

ID=16746367

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22012995A Pending JPH0967328A (en) 1995-08-29 1995-08-29 Production of 1,6-dioxyiminohexane

Country Status (1)

Country Link
JP (1) JPH0967328A (en)

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