JP2002080408A - Method for separating organic compound - Google Patents

Method for separating organic compound

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Publication number
JP2002080408A
JP2002080408A JP2000270532A JP2000270532A JP2002080408A JP 2002080408 A JP2002080408 A JP 2002080408A JP 2000270532 A JP2000270532 A JP 2000270532A JP 2000270532 A JP2000270532 A JP 2000270532A JP 2002080408 A JP2002080408 A JP 2002080408A
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JP
Japan
Prior art keywords
organic compound
organic
mixture
solubility
solvent
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
JP2000270532A
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Japanese (ja)
Other versions
JP3981520B2 (en
Inventor
Hideki Kikuchi
秀樹 菊地
Hiroshi Ashizaki
浩 芦崎
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Tokuyama Corp
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Tokuyama Corp
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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PROBLEM TO BE SOLVED: To separate an organic compound in high purity and yield from a mixture of two or more organic compounds having high solubility in organic solvent and low in water and having small solubility difference in organic solvent between the organic compound and other organic compounds. SOLUTION: A mixture of organic compounds such as a mixture of an alkyl adamantyl ester and unreacted raw materials and reaction by-products inevitably mixed in the production process of the ester is dissolved in a mixture of water and an organic solvent such as alcohol and the mixed solvent is cooled to precipitate the objective organic compound.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、有機溶媒に対する
溶解度の差が小さい二種以上の有機化合物の混合物から
目的とする有機化合物を高純度且つ高収率で分離する分
離方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a separation method for separating a desired organic compound from a mixture of two or more organic compounds having a small difference in solubility in an organic solvent with high purity and high yield.

【0002】[0002]

【従来の技術】従来、二種以上の有機化合物を含む混合
物から特定の有機化合物を分離する方法として、有機化
合物の混合物を有機溶媒に溶解し、冷却することによ
り、目的とする有機化合物を析出させる方法が一般的で
あった。
2. Description of the Related Art Conventionally, as a method of separating a specific organic compound from a mixture containing two or more kinds of organic compounds, a mixture of organic compounds is dissolved in an organic solvent and cooled to deposit a desired organic compound. The method of making it common was.

【0003】しかしながら、この方法では、二種以上の
有機化合物の有機溶媒に対する溶解度の差が小さい場
合、目的とする有機化合物以外の有機化合物が目的とす
る有機化合物と共に析出し、目的とする有機化合物を高
純度で得られないという問題があった。
However, in this method, when the difference in solubility of two or more organic compounds in an organic solvent is small, an organic compound other than the target organic compound precipitates together with the target organic compound, and Cannot be obtained with high purity.

【0004】これを再度、有機溶媒に溶解させた後、冷
却して再結晶化することにより、目的とする有機化合物
の純度を向上させる方法も知られている。しかし、この
ような再結晶を繰り返し行うと、目的とする有機化合物
の純度は向上するが、回収率が低下するという問題が生
じた。
[0004] There is also known a method of dissolving this in an organic solvent again, followed by cooling and recrystallization to improve the purity of the target organic compound. However, when such recrystallization is repeated, the purity of the target organic compound is improved, but the recovery rate is lowered.

【0005】近年、アルキルアダマンチル(メタ)アク
リレートのポリマーは、半導体製造プロセスにおけるド
ライエッチング耐性が高いことが報告され(例えば、特
開平5−265212号公報)、半導体用レジスト材料
としての可能性が注目されている。これらアルキルアダ
マンチル(メタ)アクリレートにおいても半導体用レジ
スト材料として使用する場合には高純度のものが要求さ
れる。
In recent years, it has been reported that a polymer of alkyl adamantyl (meth) acrylate has high dry etching resistance in a semiconductor manufacturing process (for example, Japanese Patent Application Laid-Open No. 5-265212), and its potential as a resist material for semiconductors has attracted attention. Have been. Even when these alkyl adamantyl (meth) acrylates are used as resist materials for semiconductors, high purity ones are required.

【0006】該アルキルアダマンチル(メタ)アクリレ
ートは、一般にアダマンタンからアダマンタノンを経て
アルキルアダマンタノールを得、これと(メタ)アクリ
ル酸、(メタ)アクリル酸エステル、(メタ)アクリル
酸の無水物、又は(メタ)アクリル酸ハロゲン化物との
反応により製造できることが知られている。
The alkyl adamantyl (meth) acrylate is generally obtained from adamantane via adamantanone to give an alkyl adamantanol, which is combined with (meth) acrylic acid, (meth) acrylic ester, (meth) acrylic anhydride, or It is known that it can be produced by reaction with a (meth) acrylic halide.

【0007】しかし、目的化合物であるアルキルアダマ
ンチル(メタ)アクリレートおよび未反応原料や反応副
生成物として混入しているアダマンタン、アダマンタノ
ン、アルキルアダマンタノール等は、有機溶媒に対する
溶解度が極めて大きく、且つ溶解度の差が小さいため目
的化合物を再結晶により効率よく分離することが困難で
あった。
However, the target compound, alkyladamantyl (meth) acrylate, and adamantane, adamantanone, alkyladamantanol, and the like mixed as unreacted raw materials and reaction by-products have extremely high solubility in organic solvents and a high solubility. , It was difficult to efficiently separate the target compound by recrystallization.

【0008】[0008]

【発明が解決しようとする課題】上記の従来技術の欠点
を補う新しい技術の開発が望まれてきた。即ち、簡単な
操作で、目的とする有機化合物を高純度及び高回収率で
分離する方法が求められていた。
It has been desired to develop a new technique to compensate for the above-mentioned disadvantages of the prior art. That is, a method for separating a target organic compound with high purity and high recovery rate by a simple operation has been required.

【0009】[0009]

【課題を解決するための手段】本発明者等は、上記課題
を解決するために鋭意検討を重ねた結果、有機溶媒に対
する溶解度は大きいが水に対する溶解度が小さく、且つ
目的とする有機化合物と他の有機化合物との間で有機溶
媒に対する溶解度の差が小さい二種以上の有機化合物の
混合物について、水と有機溶媒との混合溶媒を用いて再
結晶化することにより、目的とする有機化合物を効率よ
く分離できることを見出し、本発明を完成するに至っ
た。
Means for Solving the Problems The inventors of the present invention have conducted intensive studies in order to solve the above-mentioned problems, and as a result, the solubility in an organic solvent is large, but the solubility in water is small, and the desired organic compound and another compound are not dissolved. A mixture of two or more organic compounds having a small difference in solubility in an organic solvent between the organic compound of the present invention and a mixture of two or more organic compounds is recrystallized using a mixed solvent of water and an organic solvent, so that the target organic compound can be efficiently used. They have found that they can be separated well, and have completed the present invention.

【0010】即ち、本発明は、有機溶媒に対する溶解度
は大きいが水に対する溶解度が小さく、且つ目的とする
有機化合物と他の有機化合物との間で有機溶媒に対する
溶解度の差が小さい二種以上の有機化合物の混合物から
目的とする有機化合物を分離する方法において、水と有
機溶媒との混合溶媒に該有機化合物の混合物を溶解させ
た後、該混合溶媒を冷却することによって目的とする有
機化合物を析出させることを特徴とする有機化合物の分
離方法である。
That is, the present invention relates to two or more organic compounds having high solubility in an organic solvent but low solubility in water, and having a small difference in solubility in an organic solvent between a target organic compound and another organic compound. In a method for separating a target organic compound from a mixture of compounds, a target organic compound is precipitated by dissolving a mixture of the organic compounds in a mixed solvent of water and an organic solvent, and then cooling the mixed solvent. This is a method for separating an organic compound.

【0011】[0011]

【発明の実施の形態】以下、本発明をさらに詳細に説明
する。
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail.

【0012】本発明では有機溶媒に対する溶解度は大き
いが水に対する溶解度が小さく、且つ目的とする有機化
合物と他の有機化合物との間で有機溶媒に対する溶解度
の差が小さい有機化合物であれば二種或いはそれ以上の
有機化合物の混合物を何ら制限されることなく採用する
ことができる。
In the present invention, two kinds of organic compounds having a high solubility in an organic solvent but a low solubility in water and a small difference in the solubility in an organic solvent between a target organic compound and another organic compound are used. Mixtures of more organic compounds can be employed without any restrictions.

【0013】有機化合物の有機溶媒に対する溶解度は、
有機化合物の混合物の全量が再結晶化に使用する有機溶
媒に溶解する程度であれば問題ない。また、有機化合物
の水に対する溶解度は、再結晶化に使用する水に有機化
合物が溶解することによる損失を防ぐために、一般に
は、溶解度が10重量%以下、さらには5重量%以下で
あることが好ましい。
The solubility of an organic compound in an organic solvent is as follows:
There is no problem as long as the total amount of the mixture of organic compounds is dissolved in the organic solvent used for recrystallization. The solubility of the organic compound in water is generally 10% by weight or less, and more preferably 5% by weight or less, in order to prevent loss due to dissolution of the organic compound in water used for recrystallization. preferable.

【0014】さらに、目的とする有機化合物と他の有機
化合物との溶解度の差は、特に制限されるものではない
が、それぞれの有機化合物単体での有機溶媒に対する溶
解度の差(20℃における溶解度の差)が小さいほど本
発明による効果が顕著であり、通常、溶解度の差が0.
5〜20重量%の範囲である有機化合物について、本発
明を適用することが好ましい。勿論、20重量%を越え
る溶解度差のある有機化合物に本発明を適用しても何ら
差し支えない。
Further, the difference in solubility between the target organic compound and another organic compound is not particularly limited, but the difference in solubility of each organic compound alone in an organic solvent (the difference in solubility at 20 ° C.). The smaller the difference is, the more remarkable the effect of the present invention is.
The present invention is preferably applied to organic compounds in the range of 5 to 20% by weight. Of course, the present invention may be applied to an organic compound having a solubility difference exceeding 20% by weight.

【0015】本発明において特に好適に用いることがで
きる有機化合物は、下記一般式(1)で示されるアルキ
ルアダマンチル(メタ)アクリレート等のアルキルアダ
マンチルエステルとその製造工程で生成する副生成物等
である。
Organic compounds which can be particularly preferably used in the present invention are alkyl adamantyl esters such as alkyl adamantyl (meth) acrylate represented by the following general formula (1) and by-products formed in the production process. .

【0016】 (式中、R1は水素原子または炭素数1〜6のアルキル基
であり、R2は水素原子又はメチル基である。) 前記一般式(1)において、R1は炭素数1〜6のアルキ
ル基であり、R2は水素原子又はメチル基である。R1で示
されるアルキル基を具体的に例示すれば、メチル基、エ
チル基、プロピル基、ブチル基、ヘキシル基等の直鎖ア
ルキル基;及びイソプロピル基、第3級ブチル基、ネオ
ペンチル基等の分岐アルキル基を挙げることができる。
特に半導体用レジストの原料として有用であり、特に高
純度化が重要であるという観点から、前記一般式(1)
で示されるものの中でもR1がメチル基、エチル基、また
はブチル基であり、R2が水素またはメチル基であるもの
が好適である。
[0016] (Wherein, R 1 is a hydrogen atom or an alkyl group having 1 to 6 carbon atoms, and R 2 is a hydrogen atom or a methyl group.) In the general formula (1), R 1 is a group having 1 to 6 carbon atoms. An alkyl group, and R 2 is a hydrogen atom or a methyl group. Specific examples of the alkyl group represented by R 1 include a linear alkyl group such as a methyl group, an ethyl group, a propyl group, a butyl group and a hexyl group; and an isopropyl group, a tertiary butyl group and a neopentyl group. Examples include branched alkyl groups.
Particularly, from the viewpoint that it is useful as a raw material for a resist for semiconductors, and in particular, high purification is important, the above-mentioned general formula (1)
Among those represented by, those in which R 1 is a methyl group, an ethyl group, or a butyl group and R 2 is a hydrogen or a methyl group are preferred.

【0017】このようなアルキルアダマンチルエステル
は、通常、製造方法に由来して未反応原料や反応副生物
が不可避的に混入した混合物として得られる。原料や反
応副生物としては、アダマンタン、アダマンタノン、ア
ルキルアダマンタノール等を挙げることができる。この
ような原料や反応副生物は、本発明における分離の対象
物である。
Such an alkyl adamantyl ester is usually obtained as a mixture in which unreacted raw materials and reaction by-products are inevitably mixed due to the production method. Raw materials and reaction by-products include adamantane, adamantanone, alkyladamantanol and the like. Such raw materials and reaction by-products are objects to be separated in the present invention.

【0018】本発明において、有機溶媒の混合物中、目
的とする有機化合物とその他の有機化合物との混合割合
は特に制限されないが、目的とする有機化合物が80重
量%以上でその他の有機化合物が20重量%以下である
混合物から目的物を分離する場合には、目的物を高純度
で、例えば、99重量%以上で分離できるために好適で
ある。
In the present invention, the mixing ratio of the target organic compound and the other organic compound in the mixture of the organic solvents is not particularly limited, but the target organic compound is 80% by weight or more and the other organic compound is 20% by weight. It is preferable to separate the target substance from the mixture having the content of not more than 100% by weight because the target substance can be separated with high purity, for example, 99% by weight or more.

【0019】本発明において、有機化合物の混合物の再
結晶化には、水と有機溶媒の混合溶媒が使用される。
In the present invention, a mixed solvent of water and an organic solvent is used for recrystallization of the mixture of organic compounds.

【0020】使用される混合溶媒は、有機溶媒と水とが
任意の混合割合で相溶していることが好ましいが、一部
相溶せずに二層に分離していてもよい。
The mixed solvent used is preferably such that the organic solvent and water are compatible at an arbitrary mixing ratio, but may be separated into two layers without partial compatibility.

【0021】使用される有機溶媒としては、メタノー
ル、エタノール、プロパノール、イソプロパノール、ブ
タノール等の炭素数1〜4のアルコール類:アセトン、
メチルエチルケトン、メチルイソブチルケトン等のケト
ン類:エチレングリコールジメチルエーテル等のエーテ
ル類:酢酸エチル、酢酸ノルマルプロピル等のエステル
類:アセトニトリル等のニトリル類を挙げることがで
き、その他公知の溶媒も使用できる。これらの有機溶媒
は単独或いは2種以上混合して用いることができる。
Examples of the organic solvent used include alcohols having 1 to 4 carbon atoms such as methanol, ethanol, propanol, isopropanol and butanol: acetone,
Ketones such as methyl ethyl ketone and methyl isobutyl ketone: ethers such as ethylene glycol dimethyl ether: esters such as ethyl acetate and normal propyl acetate; nitriles such as acetonitrile; and other known solvents can also be used. These organic solvents can be used alone or in combination of two or more.

【0022】有機化合物の混合物として上記したアルキ
ルアダマンチルエステルと原料や副生成物を用いた場合
は、有機溶媒としてアルコール類、ケトン類、ニトリル
類を好適に使用することができる。
When the above-mentioned alkyl adamantyl ester and raw materials and by-products are used as a mixture of organic compounds, alcohols, ketones and nitriles can be suitably used as organic solvents.

【0023】混合溶媒中の水の濃度は、目的とする有機
化合物を高純度且つ高収率で得るためには10〜50重
量%の範囲であることが望ましい。
The concentration of water in the mixed solvent is preferably in the range of 10 to 50% by weight in order to obtain the desired organic compound with high purity and high yield.

【0024】水と有機溶媒との混合溶媒中の前記有機化
合物の混合物の濃度は10〜70重量%の範囲で溶解さ
せるのが好ましい。有機化合物が混合溶媒中に全量溶解
しない場合は、加温することによって全量溶解すること
ができる。加温する場合の温度は分離しようとする有機
化合物や混合溶媒の種類や量にもよるが、混合物として
前記したアルキルアダマンチルエステルとその原料や副
生成物の混合物を用いる場合は、20〜60℃、好まし
くは30〜50℃の範囲であることが望ましい。
It is preferable that the concentration of the mixture of the organic compounds in the mixed solvent of water and the organic solvent is in the range of 10 to 70% by weight. When the organic compound is not completely dissolved in the mixed solvent, the entire amount can be dissolved by heating. The temperature for heating depends on the type and amount of the organic compound or mixed solvent to be separated, but when the mixture of the above-mentioned alkyl adamantyl ester and its raw materials and by-products is used, the temperature is 20 to 60 ° C. , Preferably in the range of 30 to 50 ° C.

【0025】上記の温度範囲まで加温後、冷却すること
により目的物の結晶が析出し、成長する。冷却速度は結
晶核を成長させる理由から徐冷が好ましく、通常、0.
2〜0.5℃/分で冷却することが好ましい。
After heating to the above temperature range and cooling, the target crystals precipitate and grow. The cooling rate is preferably slow cooling for the purpose of growing crystal nuclei.
It is preferable to cool at a rate of 2 to 0.5 ° C / min.

【0026】冷却による到達温度は−5〜10℃の範囲
であれば十分である。一般には20〜300分かけて上
記到達温度まで冷却することが好ましい。冷却到達温度
では、通常、30分〜10時間程度保持し、目的とする
有機化合物の結晶核を十分に成長させることが好まし
い。又、冷却到達温度で結晶化しない場合は、目的とす
る有機化合物の高純度物、例えば99重量%程度の純度
のものを混合溶媒100重量部に対して0.01〜0.
1重量部の範囲で種晶として加え、冷却到達温度で30
分〜10時間程度保持することが望ましい。目的とする
有機化合物の結晶核を十分に成長させた後、濾過等の方
法で分離することができる。
It is sufficient that the temperature reached by cooling is in the range of -5 to 10 ° C. Generally, it is preferable to cool to the attained temperature in 20 to 300 minutes. It is preferable that the cooling temperature is normally maintained for about 30 minutes to 10 hours to sufficiently grow the crystal nuclei of the target organic compound. When crystallization is not performed at the cooling temperature, a high-purity target organic compound, for example, a target having a purity of about 99% by weight is used in an amount of 0.01 to 0.1% by weight based on 100 parts by weight of the mixed solvent.
In the range of 1 part by weight, a seed crystal is added.
It is desirable to hold for about 10 minutes. After the crystal nucleus of the target organic compound is sufficiently grown, it can be separated by a method such as filtration.

【0027】[0027]

【発明の効果】本発明によれば有機溶媒に対する溶解度
は大きいが水に対する溶解度が小さく、且つ目的とする
有機化合物と他の有機化合物との間で有機溶媒に対する
溶解度の差が小さい二種以上の有機化合物の混合物から
目的とする有機化合物を高純度且つ高回収率で分離する
ことができる。
According to the present invention, two or more kinds of organic solvents having a high solubility but a low solubility in water and a small difference in the solubility in an organic solvent between a target organic compound and another organic compound are small. The target organic compound can be separated from the mixture of organic compounds with high purity and high recovery.

【0028】[0028]

【実施例】以下、本発明を具体的に説明するため代表的
な実施例を示すが、本発明は、これらの実施例に限定さ
れるものではない。
EXAMPLES The present invention will be described below in more detail with reference to typical examples, but the present invention is not limited to these examples.

【0029】尚、濾過及び純度分析は下記の方法によっ
て実施した。 (1)濾過:下記の加圧濾過器を用いて窒素(0.1MPa)
で加圧して濾過した。
The filtration and the purity analysis were carried out by the following methods. (1) Filtration: Nitrogen (0.1 MPa) using the following pressure filter
And filtered.

【0030】加圧濾過器:タンク付きステンレスホルダ
ーKST-90(ADVANTEC製) フィルター:定量濾紙No.5C(ADVANTEC製) (2)純度分析:ガスクロマトグラフGC-14A(島津製作
所製)を用いて測定した。
Pressure filter: Stainless steel holder with tank KST-90 (manufactured by ADVANTEC) Filter: quantitative filter paper No. 5C (manufactured by ADVANTEC) (2) Purity analysis: Measured using gas chromatograph GC-14A (manufactured by Shimadzu Corporation) did.

【0031】 カラム:DB-1 30m、I.D(mm)0.53、Film(μm)1.5(J&W
Scientific製) 分析条件:カラム温度 100℃→200℃ 10℃/min Injection温度 200℃、Detector温度 200℃ 試料調製:試料0.1g/ノルマルヘプタン10ml 注入量1
μl また、以下の実施例では、次の表1に示した有機化合物
の混合物を用いた。有機化合物の混合物はアルキルアダ
マンチルエステルとその製造工程で生成する未反応原料
や副生成物(不純物)である。
Column: DB-1 30m, ID (mm) 0.53, Film (μm) 1.5 (J & W
Analytical conditions: Column temperature 100 ° C → 200 ° C 10 ° C / min Injection temperature 200 ° C, Detector temperature 200 ° C Sample preparation: Sample 0.1g / normal heptane 10ml Injection volume 1
μl In the following examples, a mixture of organic compounds shown in the following Table 1 was used. The mixture of organic compounds is an alkyl adamantyl ester and unreacted raw materials and by-products (impurities) generated in the production process.

【0032】参考例 表1に示したNo.1〜6の有機化合物の溶解度を測定
した。測定方法は50mlガラス管瓶に過剰量の有機化合物
を入れた後、適当量の有機溶媒を加え、撹拌しながら一
定温度下で3時間放置した。その後、1時間静置させて
上澄み液をディスポシリンジで5g程度採取し、ナスフ
ラスコへ入れて重量を測定する。エバポレーター及び真
空ポンプで重量変化がなくなるまで溶媒を留去した後、
重量を測定し、溶媒留去前後の重量から濃度を計算して
溶解度を求めた。なお、No.1〜6の有機化合物の水
に対する溶解度は0重量%であった。
Reference Example No. 1 shown in Table 1 The solubility of organic compounds 1 to 6 was measured. A measuring method was as follows. After an excessive amount of an organic compound was put in a 50 ml glass tube bottle, an appropriate amount of an organic solvent was added, and the mixture was allowed to stand at a constant temperature for 3 hours while stirring. Thereafter, the mixture is allowed to stand for 1 hour, and about 5 g of the supernatant is collected with a disposable syringe, placed in an eggplant flask and weighed. After distilling off the solvent using an evaporator and a vacuum pump until there is no change in weight,
The weight was measured, and the solubility was calculated by calculating the concentration from the weight before and after the solvent was distilled off. In addition, No. The solubility of organic compounds 1 to 6 in water was 0% by weight.

【0033】結果を表1に示した。The results are shown in Table 1.

【0034】実施例1 表2に示したNo.1〜8の8種類の混合物について、
水と有機溶媒との混合溶媒中に溶解または分散して存在
する混合物の濃度が20重量%になるように、表3に示
した各種の混合溶媒にそれぞれ分散させた。これを35
℃に加温した後、0.2℃/分の速度で0℃まで徐冷
し、0℃で2時間保持した。
Example 1 No. 1 shown in Table 2 About eight kinds of mixtures of 1-8,
Each mixture was dispersed in various kinds of mixed solvents shown in Table 3 so that the concentration of the mixture dissolved or dispersed in the mixed solvent of water and the organic solvent was 20% by weight. This is 35
After heating to 0 ° C, the mixture was gradually cooled to 0 ° C at a rate of 0.2 ° C / min, and kept at 0 ° C for 2 hours.

【0035】析出した結晶は加圧濾過器で濾過し、濾過
物は30℃で10時間減圧乾燥した後、重量測定及びガ
スクロマトグラフで純度分析を行った。結果を表3(N
o.1〜8)に示した。
The precipitated crystals were filtered with a pressure filter, and the filtrate was dried under reduced pressure at 30 ° C. for 10 hours, and then subjected to weight measurement and purity analysis by gas chromatography. The results are shown in Table 3 (N
o. 1-8).

【0036】実施例2 表2に示したNo.1〜8の8種類の混合物について、
水の濃度を30重量%に調整した混合溶媒中に溶解また
は分散して存在する混合物の濃度を表4に示したように
変えたこと以外は、実施例1と同様に行った。
Example 2 No. 2 shown in Table 2 About eight kinds of mixtures of 1-8,
The procedure was performed in the same manner as in Example 1, except that the concentration of the mixture dissolved or dispersed in the mixed solvent whose water concentration was adjusted to 30% by weight was changed as shown in Table 4.

【0037】析出した結晶は加圧濾過器で濾過し、濾過
物は30℃で10時間減圧乾燥した後、重量測定及びガ
スクロマトグラフで純度分析を行った。結果を表4(N
o.9〜16)に示した。
The precipitated crystals were filtered through a pressure filter, and the filtrate was dried under reduced pressure at 30 ° C. for 10 hours, and then subjected to weight measurement and purity analysis by gas chromatography. The results are shown in Table 4 (N
o. 9 to 16).

【0038】比較例1 表2のNo.1及び5の混合物を水を含まない有機溶媒
中に溶解または分散し、濃度を表4に示したように変え
たこと以外は、実施例2と同様に行った。その結果を表
4(No.17〜18)に併せて示した。
Comparative Example 1 Example 2 was carried out in the same manner as in Example 2 except that the mixture of 1 and 5 was dissolved or dispersed in an organic solvent containing no water, and the concentration was changed as shown in Table 4. The results are shown in Table 4 (Nos. 17 to 18).

【0039】[0039]

【表1】 [Table 1]

【0040】[0040]

【表2】 [Table 2]

【0041】[0041]

【表3】 [Table 3]

【0042】[0042]

【表4】 [Table 4]

【0043】[0043]

【表5】 [Table 5]

【0044】[0044]

【表6】 [Table 6]

【0045】[0045]

【表7】 [Table 7]

【0046】[0046]

【表8】 [Table 8]

【0047】[0047]

【表9】 [Table 9]

【0048】[0048]

【表10】 [Table 10]

【0049】[0049]

【表11】 [Table 11]

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】有機溶媒に対する溶解度は大きいが水に対
する溶解度が小さく、且つ目的とする有機化合物と他の
有機化合物との間で有機溶媒に対する溶解度の差が小さ
い二種以上の有機化合物の混合物から目的とする有機化
合物を分離する方法において、水と有機溶媒との混合溶
媒に該有機化合物の混合物を溶解させた後、該混合溶媒
を冷却することによって目的とする有機化合物を析出さ
せることを特徴とする有機化合物の分離方法。
1. A mixture of two or more organic compounds having high solubility in an organic solvent but low solubility in water and having a small difference in solubility in an organic solvent between a target organic compound and another organic compound. In the method for separating a target organic compound, a method comprising dissolving a mixture of the organic compound in a mixed solvent of water and an organic solvent, and then cooling the mixed solvent to precipitate the target organic compound. A method for separating an organic compound.
JP2000270532A 2000-09-06 2000-09-06 Method for separating organic compounds Expired - Fee Related JP3981520B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003073334A (en) * 2001-09-04 2003-03-12 Tokuyama Corp 2-ethyl-2-adamantyl methacrylate crystal powder
JP2007015962A (en) * 2005-07-06 2007-01-25 Mitsubishi Gas Chem Co Inc Method of manufacturing 3,5-dihydroxy-1-adamantyl acrylates
JP2010018566A (en) * 2008-07-11 2010-01-28 Mitsubishi Gas Chemical Co Inc Method for producing adamantyl (meth)acrylate
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JP2014198698A (en) * 2013-03-29 2014-10-23 大阪有機化学工業株式会社 Method for manufacturing adamantyl (meth)acrylate compound
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Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003073334A (en) * 2001-09-04 2003-03-12 Tokuyama Corp 2-ethyl-2-adamantyl methacrylate crystal powder
JP2007015962A (en) * 2005-07-06 2007-01-25 Mitsubishi Gas Chem Co Inc Method of manufacturing 3,5-dihydroxy-1-adamantyl acrylates
JP2010018566A (en) * 2008-07-11 2010-01-28 Mitsubishi Gas Chemical Co Inc Method for producing adamantyl (meth)acrylate
JP2014198698A (en) * 2013-03-29 2014-10-23 大阪有機化学工業株式会社 Method for manufacturing adamantyl (meth)acrylate compound
KR101421194B1 (en) * 2013-12-12 2014-08-14 신성소재 주식회사 Purification method of mixed organic electroluminescent material
WO2018174396A1 (en) * 2017-03-20 2018-09-27 국도화학 주식회사 Furan monomer having bifunctional hydroxymethyl group and preparation method therefor
KR101791852B1 (en) * 2017-03-20 2017-11-01 국도화학 주식회사 Furan monomer with bifunctional hydroxymethyl group and Method for preparing the same
CN110461825A (en) * 2017-03-20 2019-11-15 株式会社国都化学 Furans monomer and preparation method thereof with bifunctional methylol
JP2020507633A (en) * 2017-03-20 2020-03-12 クッド ケミカル カンパニー リミテッド Furan monomer having bifunctional hydroxymethyl group and method for producing the same
JP7040875B2 (en) 2017-03-20 2022-03-23 クッド ケミカル カンパニー リミテッド A furan monomer having a bifunctional hydroxymethyl group and a method for producing the same.
US11578045B2 (en) 2017-03-20 2023-02-14 Kukdo Chemical Co., Ltd Furan monomer having bifunctional hydroxymethyl group and preparation method therefor
CN110461825B (en) * 2017-03-20 2023-05-05 株式会社国都化学 Furan monomer with difunctional hydroxymethyl and preparation method thereof
CN110256251A (en) * 2019-06-28 2019-09-20 宁波南大光电材料有限公司 A kind of method of purification of high-purity 2- ethyl -2- adamantanol methacrylate
CN110256251B (en) * 2019-06-28 2022-06-03 宁波南大光电材料有限公司 Purification method of high-purity 2-ethyl-2-adamantanol methacrylate

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