JPH0285232A - Production of long-chain dibasic monoester salt - Google Patents

Production of long-chain dibasic monoester salt

Info

Publication number
JPH0285232A
JPH0285232A JP23633388A JP23633388A JPH0285232A JP H0285232 A JPH0285232 A JP H0285232A JP 23633388 A JP23633388 A JP 23633388A JP 23633388 A JP23633388 A JP 23633388A JP H0285232 A JPH0285232 A JP H0285232A
Authority
JP
Japan
Prior art keywords
long
chain dibasic
dibasic acid
alcohol
water
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.)
Granted
Application number
JP23633388A
Other languages
Japanese (ja)
Other versions
JPH0513937B2 (en
Inventor
Atsushi Makita
淳 牧田
Tadashi Yokota
横田 忠史
Akio Watanabe
章夫 渡辺
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.)
Eneos Corp
Original Assignee
Nippon Mining 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 Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP23633388A priority Critical patent/JPH0285232A/en
Publication of JPH0285232A publication Critical patent/JPH0285232A/en
Publication of JPH0513937B2 publication Critical patent/JPH0513937B2/ja
Granted legal-status Critical Current

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

Abstract

PURPOSE:To advantageously obtain the subject compound useful as an intermediate for musk-based perfumes in high selectivity for a short time by reacting a long-chain dibasic acid dialkyl ester with a metallic hydroxide in the presence of water using an alcohol as a solvent. CONSTITUTION:A long-chain dibasic acid dialkyl ester is used as a raw material and reacted with a metallic hydroxide (preferably barium hydroxide) in the presence of water using an alcohol as a solvent at a temperature within the range of 20 deg.C to the reflux temperature under ordinary pressure to afford the objective compound. The amount of the water is preferably within the range of 5-60wt.% based on the alcohol. The amount of the metallic hydroxide is preferably within the range of 0.4-2mol based on 1mol long-chain dibasic acid dialkyl ester. The alcohol as the solvent is preferably a lower aliphatic alcohol, such as methyl alcohol, and used in an amount within the range of 1-30wt.% based on the raw material.

Description

【発明の詳細な説明】 [産業上の利用分野コ 本発明は、長鎖二塩基酸モノエステル塩の製造方法に関
する。この長鎖二塩基酸モノエステル塩は、加水分解す
ることにより、容易に長鎖二塩基酸モノエステルとする
ことができ、また。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing long-chain dibasic acid monoester salts. This long-chain dibasic acid monoester salt can be easily converted into a long-chain dibasic acid monoester by hydrolysis.

この長鎖二塩基酸モノエステルは、還元することにより
、ω−オキシ酸を得ることができるものである。
By reducing this long-chain dibasic acid monoester, an ω-oxyacid can be obtained.

[従来の技術] 長鎖二塩基酸ジアルキルエステルから長鎖二塩基酸モノ
エステル塩を製造を製造する方法としては、ウンデカン
ニ酸メチルエステルを無水のメチルアルコール溶媒中で
、無水の水酸化バリウムと、20〜25℃の温度で、反
応させる方法が提案されている〔オーガニック シンセ
シス(Organic 5yntheses Co1.
Vol、4.p6:15−638))。
[Prior Art] As a method for producing a long-chain dibasic acid monoester salt from a long-chain dibasic acid dialkyl ester, undecanoic acid methyl ester is mixed with anhydrous barium hydroxide in an anhydrous methyl alcohol solvent, A method of reacting at a temperature of 20 to 25°C has been proposed [Organic Syntheses Co1.
Vol.4. p6:15-638)).

しかし、この方法では、反応を完結させるためには、少
なくとも17時間以上必要であり、反応効率上問題があ
った。
However, this method requires at least 17 hours to complete the reaction, which poses a problem in terms of reaction efficiency.

[発明が解決しようとする課題] 本発明は、上記問題を解決するもので、長鎖二塩基酸モ
ノエステル塩を高転化率、高選択率を保持しながら、短
時間に反応を完結できる方法を提供することを課題とす
るものである。
[Problems to be Solved by the Invention] The present invention solves the above problems, and provides a method that can complete the reaction in a short time while maintaining a high conversion rate and high selectivity of a long-chain dibasic acid monoester salt. The goal is to provide the following.

[課題を解決するための手段] 本発明者は、上記課題を解決するために、鋭意研究を行
った結果、単に反応温度を高める方法では1反応速度の
向上及び高転化率を達成できたが、選択率が著しく低下
した。しかしながら、驚くべきことに、反応溶媒として
、アルコール水溶液を用いると、またさらには、これに
反応に用いた金属水酸化物と同種の金属イオンを添加す
ることにより、反応速度の向上及び高転化率に加えて、
選択率を著しく向上できることを見出した。
[Means for Solving the Problems] In order to solve the above problems, the present inventor conducted intensive research and found that, although a method of simply increasing the reaction temperature could achieve an improvement in the reaction rate and a high conversion rate. , selectivity decreased significantly. However, surprisingly, when an alcohol aqueous solution is used as the reaction solvent, and furthermore, by adding metal ions of the same type as the metal hydroxide used in the reaction, the reaction rate can be improved and the conversion rate can be increased. In addition to,
It has been found that the selectivity can be significantly improved.

本発明は、かかる知見に基づきなされたもので、長鎖二
塩基酸ジアルキルエステルをアルコール溶媒中で金属水
酸化物と反応させて長鎖二塩基酸モノエステル塩を製造
する方法において、水の存在下に反応させることからな
り、またさらには、これに、前記金属水酸化物と同種の
金属イオンを添加して反応させることからなるものであ
る。
The present invention was made based on this knowledge, and includes a method for producing a long-chain dibasic acid monoester salt by reacting a long-chain dibasic acid dialkyl ester with a metal hydroxide in an alcohol solvent. Furthermore, it consists of adding and reacting metal ions of the same type as the metal hydroxide.

本発明における長鎖二塩基酸ジアルキルエステルとして
は、炭素数が、9〜18のα、ω−二塩基酸のメチル、
エチル、プロピル、ブチル等のジエステルが、原料の入
手の容易さ及び反応効率の面から好適である。
In the present invention, the long-chain dibasic acid dialkyl esters include methyl α,ω-diacids having 9 to 18 carbon atoms;
Diesters such as ethyl, propyl, and butyl are preferred from the viewpoint of easy availability of raw materials and reaction efficiency.

本発明の反応は、アルコールを反応溶媒として用いるが
、このアルコールとしては、メチルアルコール、エチル
アルコール、プロピルアルコール、ブチルアルコール等
の低級脂肪族アルコールが溶解性が高く、しかも安価で
、特に好ましい。このアルコールの使用量は、長鎖二塩
基酸ジアルキルエステルの種類にもよるが、二塩基酸ジ
アルキルエステルが1〜30重景%重量囲から適宜選択
される。
In the reaction of the present invention, alcohol is used as a reaction solvent, and lower aliphatic alcohols such as methyl alcohol, ethyl alcohol, propyl alcohol, and butyl alcohol are particularly preferred because they have high solubility and are inexpensive. The amount of alcohol to be used depends on the type of long-chain dibasic acid dialkyl ester, but the dibasic acid dialkyl ester is appropriately selected from a range of 1 to 30% by weight.

一方、金属水酸化物としては、水酸化ナトリウム、水酸
化カリウム等のアルカリ金属の水酸化物或いは水酸化カ
ルシウム、水酸化マグネシウム、水酸化バリウム等のア
ルカリ土類金属の水酸化物等を用いることができるが、
水酸化バリウムがモノエステル塩のアルコールに対する
溶解度が小さく、収率が高くなるため、特に好ましい。
On the other hand, as the metal hydroxide, hydroxides of alkali metals such as sodium hydroxide and potassium hydroxide, or hydroxides of alkaline earth metals such as calcium hydroxide, magnesium hydroxide, barium hydroxide, etc. may be used. can be done, but
Barium hydroxide is particularly preferred because the solubility of the monoester salt in alcohol is low and the yield is high.

この金属水酸化物の使用量は、長鎖二塩基酸ジアルキル
エステル1モルに対し、0.4〜2モルの範囲で適宜選
定される。
The amount of the metal hydroxide to be used is appropriately selected in the range of 0.4 to 2 mol per 1 mol of the long-chain dibasic acid dialkyl ester.

本発明においては、上記アルコール溶媒中に水を存在さ
せるものであるが、この水の量は、アルコールに対し、
5〜60重量%とすることが好ましい。5重量%以下で
あれば、高選択性が得られず、また60重量%以上とす
るとモノエステル塩の収率が低下するため好ましくない
In the present invention, water is present in the alcohol solvent, and the amount of water is relative to the alcohol.
The content is preferably 5 to 60% by weight. If it is less than 5% by weight, high selectivity cannot be obtained, and if it is more than 60% by weight, the yield of the monoester salt decreases, which is not preferable.

また、水の存在に加えて、上記金属水酸化物の金属種と
同種の金属イオンを添加すると、さらに本発明の効果を
高めることができる。すなわち、例えば、金属水酸化物
として、水酸化バリウムを用いた場合、塩化バリウムや
硝酸バリウム等のバリウムイオン源となる水溶性のバリ
ウム塩を添加すると良い。このイオンの添加量は、長鎖
二塩基酸ジメチルエステル1モルに対し0.1モル以上
とすることが好ましい。0.1モル以下では添加効果が
、さほど期待できない。
Further, in addition to the presence of water, the effect of the present invention can be further enhanced by adding metal ions of the same type as the metal type of the metal hydroxide. That is, for example, when barium hydroxide is used as the metal hydroxide, it is preferable to add a water-soluble barium salt, such as barium chloride or barium nitrate, which serves as a source of barium ions. The amount of this ion added is preferably 0.1 mole or more per mole of long-chain dibasic acid dimethyl ester. If the amount is less than 0.1 mol, no significant effect can be expected.

この反応は、20〜常圧還流温度の範囲で適宜選定して
行うと良い。また、反応時間は1反応部度等反応条件に
もよるが、1〜7時間の範囲で適宜選定することで充分
である。
This reaction is preferably carried out at an appropriately selected temperature within the range of 20°C to normal pressure and reflux temperature. Further, although the reaction time depends on the reaction conditions such as the number of reaction parts, it is sufficient to appropriately select the reaction time within the range of 1 to 7 hours.

本発明で得られた長鎖二塩基酸モノエステル塩は、酸で
加水分解することにより、容易に長鎖二塩基酸モノエス
テルへと誘導することができ、さらにこのモノエステル
は1選択的に還元することにより、ω−オキシl俊もし
くはそのエステルを得ることができる。尚、このω−オ
キシ酸或いはそのエステルは、ムスク系の香料の中間体
となることが知られている。
The long-chain dibasic acid monoester salt obtained in the present invention can be easily converted into a long-chain dibasic acid monoester by hydrolysis with an acid, and furthermore, this monoester can be selectively converted into a long-chain dibasic acid monoester. By reduction, ω-oxyl or ester thereof can be obtained. Incidentally, this ω-oxyacid or its ester is known to be an intermediate for musk-based fragrances.

以下に本発明の実施例を示し、本発明の内容をより具体
的に説明する。
Examples of the present invention will be shown below, and the contents of the present invention will be explained more specifically.

[実施例] 失稟轟よ 水酸化バリウム(8水塩)8.68g(27,5mmo
1)をメチルアルコール300m1と水30+1との混
合液に溶解し、50〜60℃の温度に加熱した。これに
、溶融した1、15−ペンタデカンニ酸ジメチルエステ
ルを15.02g(50,0mmol)加え、撹拌しな
がら、1時間反応させ、バリウム−ビス−(1,15−
ペンタデカンニ酸モノメチル)の粗生成物を得た。これ
を希塩酸で、加水分解した後、ガスクロマトグラフィー
により分析した結果、1.15−ペンタデカンニ酸モノ
メチルエステルが、転化率97.0%4選択率が96.
3%で得られていたことが分かった。
[Example] Barium hydroxide (octahydrate) 8.68 g (27.5 mmo
1) was dissolved in a mixture of 300ml of methyl alcohol and 30+1 of water and heated to a temperature of 50-60°C. To this, 15.02 g (50.0 mmol) of molten 1,15-pentadecanedioic acid dimethyl ester was added, and the mixture was reacted for 1 hour with stirring.
A crude product of monomethyl pentadecanoate was obtained. After hydrolyzing this with dilute hydrochloric acid, analysis by gas chromatography revealed that it was 1.15-pentadecanoic acid monomethyl ester with a conversion rate of 97.0% and a selectivity of 96.0%.
It turned out that it was obtained at 3%.

実施例2 水酸化バリウム(8水塩)8.68g(27,5mmo
l)と塩化バリウム5.21g(25,Oimol)と
をメチルアルコール300n+1と水30m1との混合
液に溶解し、50〜60℃の温度に加熱した。
Example 2 Barium hydroxide (octahydrate) 8.68 g (27.5 mmo
1) and 5.21 g (25, Oimol) of barium chloride were dissolved in a mixture of 300 n+1 methyl alcohol and 30 ml water and heated to a temperature of 50-60°C.

これに、溶融したl、15−ベンタデカンニ酸ジメチル
エステル15 、02g(50、Oimol)を加え、
撹拌しながら、6時間反応させ、バリウム=ビス−(1
,15−ペンタデカンニ酸モノメチル)の粗生成物を得
た。これを希塩酸で、加水分解した後、ガスクロマトグ
ラフィーにより分析した結果、l。
To this, molten l,15-bentadecanoic acid dimethyl ester 15,02 g (50, Oimol) was added,
While stirring, the reaction was carried out for 6 hours, and barium=bis(1
, 15-pentadecanoic acid monomethyl) was obtained. After hydrolyzing this with dilute hydrochloric acid, analysis by gas chromatography revealed that 1.

15−ペンタデカンニ酸モノメチルエステルが、転化率
98.3%、選択率が98.4%で得られていたことが
分かった。
It was found that 15-pentadecanedioic acid monomethyl ester was obtained at a conversion rate of 98.3% and a selectivity of 98.4%.

尖1」LL二L メチルアルコール300m1に所定量の水を添加し、こ
れに無水の水酸化バリウム及び塩化バリウムをそれぞれ
所定量溶解し、これに、溶融した1、15−ペンタデカ
ンニ酸ジメチルエステル15 、02g(50、Omm
ol)を加え、撹拌しながら、所定時間反応させた。得
られたバリウム=ビス−(1,15−ペンタデカンニ酸
モノメチル)の粗生成物を希塩酸で、加水分解した後、
ガスクロマトグラフィーにより1,15−ペンタデカン
ニ酸モノメチルエステル等の量を分析した。これらの条
件、結果を第1表に示した。     (以下余白)[
発明の効果] 以上のような本発明は、長鎖二塩基酸ジアルキルエステ
ルから長鎖二塩基酸モノエステル塩を高転化率、高選択
率を保持しながら、短時間に反応を完結できるという格
別の効果を奏するものである。
Tip 1" LL 2 L Add a predetermined amount of water to 300 ml of methyl alcohol, dissolve predetermined amounts of anhydrous barium hydroxide and barium chloride, and add molten 1,15-pentadecanedioic acid dimethyl ester 15 , 02g (50, Omm
ol) was added, and the mixture was allowed to react for a predetermined period of time while stirring. After hydrolyzing the obtained crude product of barium bis-(1,15-pentadecanoic acid monomethyl) with dilute hydrochloric acid,
The amount of 1,15-pentadecanoic acid monomethyl ester, etc. was analyzed by gas chromatography. These conditions and results are shown in Table 1. (Margin below) [
[Effect of the invention] The present invention as described above is an exceptional feature in that the reaction can be completed in a short time while maintaining a high conversion rate and high selectivity from a long-chain dibasic acid dialkyl ester to a long-chain dibasic acid monoester salt. It has the following effects.

Claims (2)

【特許請求の範囲】[Claims] (1)長鎖二塩基酸ジアルキルエステルをアルコール溶
媒中で金属水酸化物と反応させて長鎖二塩基酸モノエス
テル塩を製造する方法において、水の存在下に反応させ
ることを特徴とする長鎖二塩基酸モノエステル塩の製造
方法。
(1) A method for producing a long-chain dibasic acid monoester salt by reacting a long-chain dibasic acid dialkyl ester with a metal hydroxide in an alcohol solvent, the long-chain dibasic acid dialkyl ester being reacted in the presence of water. A method for producing a chain dibasic acid monoester salt.
(2)長鎖二塩基酸ジアルキルエステルをアルコール溶
媒中で金属水酸化物と反応させて長鎖二塩基酸モノエス
テル塩を製造する方法において、水の存在下に、前記金
属水酸化物と同種の金属イオンを添加して反応させるこ
とを特徴とする長鎖二塩基酸モノエステル塩の製造方法
(2) In a method for producing a long-chain dibasic acid monoester salt by reacting a long-chain dibasic acid dialkyl ester with a metal hydroxide in an alcohol solvent, in the presence of water, the same type of metal hydroxide as the metal hydroxide is reacted. 1. A method for producing a long-chain dibasic acid monoester salt, which comprises adding and reacting a metal ion.
JP23633388A 1988-09-22 1988-09-22 Production of long-chain dibasic monoester salt Granted JPH0285232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23633388A JPH0285232A (en) 1988-09-22 1988-09-22 Production of long-chain dibasic monoester salt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23633388A JPH0285232A (en) 1988-09-22 1988-09-22 Production of long-chain dibasic monoester salt

Publications (2)

Publication Number Publication Date
JPH0285232A true JPH0285232A (en) 1990-03-26
JPH0513937B2 JPH0513937B2 (en) 1993-02-23

Family

ID=16999253

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23633388A Granted JPH0285232A (en) 1988-09-22 1988-09-22 Production of long-chain dibasic monoester salt

Country Status (1)

Country Link
JP (1) JPH0285232A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010533644A (en) * 2007-05-31 2010-10-28 聡美 庭山 Synthesis method of half ester

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010533644A (en) * 2007-05-31 2010-10-28 聡美 庭山 Synthesis method of half ester
JP2013227345A (en) * 2007-05-31 2013-11-07 Times Three Wireless Inc Synthesis of half ester

Also Published As

Publication number Publication date
JPH0513937B2 (en) 1993-02-23

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