JP4667593B2 - Process for producing 2-alkyl-2-adamantyl (meth) acrylates - Google Patents

Process for producing 2-alkyl-2-adamantyl (meth) acrylates Download PDF

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JP4667593B2
JP4667593B2 JP2000389631A JP2000389631A JP4667593B2 JP 4667593 B2 JP4667593 B2 JP 4667593B2 JP 2000389631 A JP2000389631 A JP 2000389631A JP 2000389631 A JP2000389631 A JP 2000389631A JP 4667593 B2 JP4667593 B2 JP 4667593B2
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alkyl
meth
adamantyl
formula
represented
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JP2002193883A (en
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憲兒 小林
隆博 和崎
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Daicel Corp
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Daicel Chemical Industries Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は2−アルキル−2−アダマンチル(メタ)アクリレート類の製造法に関する。2−アルキル−2−アダマンチル(メタ)アクリレート類はレジスト、インキ用レジン、塗料、接着剤、粘着剤などの原料として有用である。
【0002】
【従来の技術】
2−アルキル−2−アダマンチル(メタ)アクリレート類の製造法として、特開平10−182552号公報には、2−アダマンタノンと(メタ)アクリル酸ハライドとをグリニヤール試薬等の有機金属化合物の存在下で反応させる方法が開示されている。また、特開2000−229911号公報には、特定の製造法により得られた(メタ)アクリル酸クロリドと2−アルキル−2−アダマンタノール類とを反応させて2−アルキル−2−アダマンチル(メタ)アクリレート類を得る方法が開示されている。しかしながら、これらの方法は収率や工程の簡略さ等の点で必ずしも工業的方法として十分満足できるものではない。
【0003】
【発明が解決しようとする課題】
従って、本発明の目的は、2−アルキル−2−アダマンチル(メタ)アクリレート類を簡略化された工程で、しかも高い収率で、工業的に効率よく製造できる方法を提供することにある。
【0004】
【課題を解決するための手段】
本発明者らは、前記目的を達成するために鋭意検討の結果、2−アダマンタノン類を有機金属化合物と反応させて対応する2−アルキル−2−アダマンタノール類を生成させ、次いでこの生成した2−アルキル−2−アダマンタノール類を単離することなく(メタ)アクリル酸ハライドと反応させると、対応する2−アルキル−2−アダマンチル(メタ)アクリレート類を簡易に且つ収率よく得ることができることを見出し、本発明を完成した。
【0005】
すなわち、本発明は、(A)下記式(1)
【化4】

Figure 0004667593
(アダマンタン環は置換基を有していてもよい)
で表される2−アダマンタノン類を、下記式(2)
1−M (2)
[式中、R1はアルキル基を示す。Mは配位子を有してもよい金属原子、または下記式(3)
−MgY (3)
(式中、Yはハロゲン原子を示す)
で表される基を示す]
で表される有機金属化合物と反応させて、下記式(4)
【化5】
Figure 0004667593
(式中、R1は前記に同じ。アダマンタン環は置換基を有していてもよい)
で表される2−アルキル−2−アダマンタノール類を生成させる工程、及び(B)前記工程で生成した2−アルキル−2−アダマンタノール類を単離することなく(メタ)アクリル酸ハライドと反応させて、下記式(5)
【化6】
Figure 0004667593
(式中、R2は水素原子又はメチル基を示す。R1は前記に同じ)
で表される2−アルキル−2−アダマンチル(メタ)アクリレート類を生成させる工程を含む2−アルキル−2−アダマンチル(メタ)アクリレート類の製造法を提供する。この製造法において、工程(B)の反応溶媒として、例えば少なくとも芳香族炭化水素を含む溶媒などを使用できる。
【0006】
【発明の実施の形態】
[工程(A)]
本発明の製造法において、工程(A)では、前記式(1)で表される2−アダマンタノン類を、前記式(2)で表される有機金属化合物と反応させて、前記式(4)で表される2−アルキル−2−アダマンタノール類を生成させる。
式(1)で表される2−アダマンタノン類のアダマンタン環は置換基を有していてもよい。このような置換基として、例えば、ハロゲン原子(臭素、塩素、フッ素原子など)、アルキル基(メチル、エチル、ブチル、t−ブチル基などのC1-4アルキル基など)、保護基で保護されたヒドロキシル基、保護基で保護されたアミノ基、保護基で保護されたカルボキシル基などが挙げられる。前記保護基としては有機合成の分野で通常用いられる保護基が例示される。
【0007】
前記式(2)で表される有機金属化合物において、Mにおける金属原子としては、例えば、リチウムなどのアルカリ金属、セリウム、チタン、銅などの還移金属原子などが挙げられる。前記金属原子は配位子を有していてもよい。前記配位子としては、塩素原子などのハロゲン原子、イソプロポキシ基などのアルコキシ基、ジエチルアミノ基などのジアルキルアミノ基、シアノ基、アルキル基、リチウム原子などのアルカリ金属原子などが挙げられる。
【0008】
1はアルキル基を示し、例えば、メチル、エチル、プロピル、イソプロピル、ブチル、イソブチル、s−ブチル、t−ブチル基などのC1-6アルキル基などが挙げられる。前記式(3)において、Yで表されるハロゲン原子としては、塩素、臭素、ヨウ素原子が挙げられる。
【0009】
前記式(2)で表される有機金属化合物の代表的な例として、ジメチルジイソプロポキシチタンなどの有機チタン化合物(有機チタンのアート錯体など);メチルマグネシウムブロミド、エチルマグネシウムブロミド、ブチルマグネシウムブロミドなどの有機マグネシウム化合物(Grignard試薬など);メチルリチウム、ブチルリチウムなどの有機リチウム化合物などが挙げられる。有機マグネシウム化合物はハロゲン化銅と組み合わせて用いることもできる。
【0010】
前記式(2)で表される有機金属化合物の使用量は、前記式(1)で表される2−アダマンタノン類1モルに対して、例えば1〜2モル程度である。
【0011】
反応は、通常、有機溶媒中で行われる。有機溶媒としては、反応に不活性な溶媒であればよく、例えば、ジエチルエーテル、1,2−ジメトキシエタン、テトラヒドロフランなどのエーテル類、ヘプタン、ヘキサン、オクタンなどの脂肪族炭化水素などを使用できる。
【0012】
反応温度は、有機金属化合物の種類などにより、例えば−100℃〜150℃程度の範囲内で適宜選択できる。例えば、前記式(2)で表される有機金属化合物において、Mが金属原子(例えば、リチウム)の場合には、反応温度は、例えば−100℃〜30℃程度である。また、式(2)の化合物として、Mが式(3)で表される基を示す化合物を用いる場合には、反応温度は、例えば0℃〜150℃程度、好ましくは20℃〜100℃程度である。
【0013】
反応は、回分式、半回分式、連続式などの慣用の方法により行うことができる。反応終了後、反応中間体を水などでクエンチ(加水分解等)することにより前記式(4)で表される2−アルキル−2−アダマンタノール類が生成する。前記加水分解の際には、希塩酸、希硫酸などの酸の水溶液を用いる場合が多い。
【0014】
[工程(B)]
工程(B)では、前記工程(A)で生成した2−アルキル−2−アダマンタノール類を単離することなく(メタ)アクリル酸ハライドと反応させて、前記式(5)で表される2−アルキル−2−アダマンチル(メタ)アクリレート類を生成させる。
【0015】
通常、前記クエンチ処理後の反応混合液を、液性調整(中和など)、溶媒交換、分液(抽出)、濃縮、希釈等の適宜な操作を施した後、工程(B)に供する。より具体的には、例えば、工程(A)において反応溶媒として水と混和する溶媒(例えば、テトラヒドロフランなど)を用いた場合には、クエンチ処理後の反応混合液に、必要に応じて水酸化ナトリウムなどの塩基性物質を含むアルカリ性水溶液を添加して中和した後、前記反応溶媒を留去する操作を施し、その残液に水と分液可能な有機溶媒を添加し、有機層と水層とを分液させ、得られた有機層を工程(B)に供する。なお、該有機層を濃縮及び/又は冷却することにより、2−アルキル−2−アダマンタノール類をスラリー化して、若しくは該スラリーを加熱により再溶解させて工程(B)に供してもよい。また、工程(A)における反応溶媒の種類により、溶媒交換等の操作を省略することができる。
【0016】
前記水と分液可能な溶媒としては、例えば、トルエン、キシレン等の芳香族炭化水素;ヘキサン、ヘプタン等の脂肪族炭化水素;シクロヘキサン、メチルシクロヘキサン等の脂環式炭化水素;エチルエーテル、イソプロピルエーテル、ジブチルエーテル等の鎖状エーテル類;これらの混合液などが挙げられる。好ましい溶媒には、トルエン等の芳香族炭化水素を少なくとも含む溶媒が含まれる。これらの溶媒は工程(B)における反応溶媒として用いられる。なお、反応溶媒としては上記の溶媒に限らず、反応を損なわないような溶媒であれば特に限定されない。
【0017】
(メタ)アクリル酸ハライドとしては、例えば、アクリル酸クロリド、アクリル酸ブロミド等のアクリル酸ハライド;メタクリル酸クロリド、メタクリル酸ブロミド等のメタクリル酸ハライドが例示される。(メタ)アクリル酸ハライドの使用量は、例えば、2−アルキル−2−アダマンタノール類1モルに対して、1〜4モル程度である。
【0018】
2−アルキル−2−アダマンタノール類と(メタ)アクリル酸ハライドとの反応は、通常、塩基の存在下で行われる。塩基としては、例えば、トリエチルアミン、N−メチルピペリジン等の第3級アミン、ピリジン等の窒素原子含有芳香族複素環化合物、ナトリウムメトキシド等のアルカリ金属アルコキシド、酢酸ナトリウムなどの有機塩基;水酸化ナトリム等のアルカリ金属水酸化物、炭酸ナトリウム等のアルカリ金属炭酸塩、炭酸水素ナトリウム等のアルカリ金属炭酸水素塩などの無機塩基などが挙げられる。これらの塩基は単独で又は2種以上組み合わせて使用できる。塩基の使用量は、例えば、2−アルキル−2−アダマンタノール類1モルに対して、1〜5モル程度である。塩基は大過剰量用いることもできる。
【0019】
2−アルキル−2−アダマンタノール類と(メタ)アクリル酸ハライドとを反応させる際の反応温度は、通常−50℃〜100℃程度、好ましくは0〜70℃程度である。反応は、回分式、半回分式、連続式などの慣用の方法により行うことができる。一般には、2−アルキル−2−アダマンタノール類のスラリー中に(メタ)アクリル酸ハライドを逐次添加する方法が行われる。
【0020】
反応終了後、例えば、液性調整(中和など)、濾過、濃縮、抽出、洗浄、蒸留、晶析、再結晶、カラムクロマトグラフィーなどの分離精製手段により、前記式(5)で表される2−アルキル−2−アダマンチル(メタ)アクリレート類を得ることができる。
【0021】
こうして得られた2−アルキル−2−アダマンチル(メタ)アクリレート類は、レジスト、インキ用レジン、塗料、接着剤、粘着剤などの原料として有用である。特に、酸によってアルコール部位が脱離し、遊離のカルボン酸を生成させる化合物は、酸感応性化合物として感光性樹脂のモノマー原料に使用できる。
【0022】
【発明の効果】
本発明の方法によれば、2−アルキル−2−アダマンタノール類を単離しないので、晶析、分離、乾燥工程を省略でき、工程が簡略化されると共に、2−アルキル−2−アダマンチル(メタ)アクリレート類を高い収率で得ることができる。従って、本発明の製造法は、工業的な2−アルキル−2−アダマンチル(メタ)アクリレート類の製法として極めて優れている。
【0023】
【実施例】
以下、実施例に基づいて本発明をより詳細に説明するが、本発明はこれらの実施例により限定されるものではない。
【0024】
実施例1
滴下ロート、凝縮器及び攪拌機を備えたフラスコに2−アダマンタノン30g(0.20モル)とテトラヒドロフラン60gを入れ、50℃以下に温度制御しながらメチルマグネシウムブロミド(CH3MgBr)のテトラヒドロフラン溶液122g(CH3MgBr:0.225モル)をおよそ1時間で滴下した。その後60℃で1時間攪拌を続け、内容物を室温まで冷却した。
滴下ロート、凝縮器及び攪拌機を備えたフラスコに10重量%硫酸水溶液を入れ、窒素ガス雰囲気下、10℃以下に温度制御しながら、上記で得られた反応混合物を約1時間かけて滴下した。その後、5重量%苛性ソーダ水溶液で中和し、エバポレーターで常圧にて濃縮した。残液にトルエン450gを添加し、攪拌した。トルエン層を分離採取し、減圧下で残液が約250gになるまで濃縮し、2−メチル−2−アダマンタノールのスラリーを得た。
滴下ロート、凝縮器及び攪拌機を備えたフラスコに上記のスラリーを入れ、さらにトリエチルアミン70g(0.69モル)を加え、メタクリル酸クロリド50g(0.48モル)を、反応温度を30℃以下に制御しながら約2時間で滴下した。滴下終了後、さらに50℃で10時間攪拌を続けた。冷却後、20℃以下の温度で水170gを滴下した。その後、炭酸ソーダ水溶液で中和し、食塩水で洗浄後、有機層を液体クロマトグラフィーで分析したところ、2−メタクリロイルオキシ−2−メチルアダマンタンが42.1g(0.18モル)生成していた。2−メタクリロイルオキシ−2−メチルアダマンタンの収率は、2−アダマンタノン基準で90%であった。
【0025】
比較例1
滴下ロート、凝縮器及び攪拌機を備えたフラスコに2−アダマンタノン30g(0.20モル)とテトラヒドロフラン60gを入れ、50℃以下に温度制御しながらメチルマグネシウムブロミド(CH3MgBr)のテトラヒドロフラン溶液122g(CH3MgBr:0.225モル)をおよそ1時間で滴下した。その後60℃で1時間攪拌を続け、内容物を室温まで冷却した。
滴下ロート、凝縮器及び攪拌機を備えたフラスコに10重量%硫酸水溶液を入れ、窒素ガス雰囲気下、10℃以下に温度制御しながら、上記で得られた反応混合物を1時間かけて滴下した。その後、5重量%苛性ソーダ水溶液で中和し、エバポレーターで常圧にて内部温度が100℃になるまで濃縮した。析出した結晶を濾過後、乾燥することにより35gの結晶が得られた。
上記で得られた結晶とトルエン300g、及びトリエチルアミン70g(0.69モル)を、滴下ロート、凝縮器及び攪拌機を備えたフラスコに入れ、反応温度を30℃以下に制御しながら、メタクリル酸クロリド50g(0.48モル)を約2時間で滴下した。滴下終了後、さらに50℃で10時間攪拌を続けた。冷却後、20℃以下の温度で水170gを滴下した。その後、炭酸ソーダ水溶液で中和し、食塩水で洗浄後、有機層を液体クロマトグラフィーで分析したところ、2−メタクリロイルオキシ−2−メチルアダマンタンが35.1g(0.15モル)生成していた。2−メタクリロイルオキシ−2−メチルアダマンタンの収率は、2−アダマンタノン基準で75%であった。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a process for producing 2-alkyl-2-adamantyl (meth) acrylates. 2-Alkyl-2-adamantyl (meth) acrylates are useful as raw materials for resists, ink resins, paints, adhesives, and pressure-sensitive adhesives.
[0002]
[Prior art]
As a method for producing 2-alkyl-2-adamantyl (meth) acrylates, JP-A-10-182552 discloses 2-adamantanone and (meth) acrylic acid halide in the presence of an organometallic compound such as a Grignard reagent. A method of reacting with is disclosed. JP 2000-229911 A discloses that (meth) acrylic acid chloride obtained by a specific production method is reacted with 2-alkyl-2-adamantanol to give 2-alkyl-2-adamantyl (meta ) A method for obtaining acrylates is disclosed. However, these methods are not always satisfactory as industrial methods in terms of yield and process simplicity.
[0003]
[Problems to be solved by the invention]
Accordingly, an object of the present invention is to provide a method capable of industrially and efficiently producing 2-alkyl-2-adamantyl (meth) acrylates in a simplified process and in a high yield.
[0004]
[Means for Solving the Problems]
As a result of intensive studies to achieve the above object, the present inventors reacted 2-adamantanones with an organometallic compound to produce the corresponding 2-alkyl-2-adamantanols, which were then produced. When 2-alkyl-2-adamantanols are reacted with (meth) acrylic acid halide without isolation, the corresponding 2-alkyl-2-adamantyl (meth) acrylates can be obtained easily and with high yield. The present invention has been completed by finding out what can be done.
[0005]
That is, the present invention provides (A) the following formula (1)
[Formula 4]
Figure 0004667593
(The adamantane ring may have a substituent)
2-adamantanone represented by the following formula (2)
R 1 -M (2)
[Wherein R 1 represents an alkyl group. M is a metal atom which may have a ligand, or the following formula (3)
-MgY (3)
(In the formula, Y represents a halogen atom)
Indicates a group represented by
Is reacted with an organometallic compound represented by the following formula (4):
[Chemical formula 5]
Figure 0004667593
(In the formula, R 1 is the same as above. The adamantane ring may have a substituent)
And (B) a reaction with (meth) acrylic acid halide without isolation of the 2-alkyl-2-adamantanol produced in the above step. Let the following formula (5)
[Chemical 6]
Figure 0004667593
(Wherein R 2 represents a hydrogen atom or a methyl group, R 1 is the same as above)
The manufacturing method of 2-alkyl- 2-adamantyl (meth) acrylate including the process of producing | generating 2-alkyl- 2-adamantyl (meth) acrylate represented by these is provided. In this production method, for example, a solvent containing at least an aromatic hydrocarbon can be used as the reaction solvent in the step (B).
[0006]
DETAILED DESCRIPTION OF THE INVENTION
[Step (A)]
In the production method of the present invention, in step (A), the 2-adamantanone represented by the formula (1) is reacted with the organometallic compound represented by the formula (2) to obtain the formula (4). 2-alkyl-2-adamantanols represented by
The adamantane ring of the 2-adamantanones represented by the formula (1) may have a substituent. Examples of such substituents are protected with a halogen atom (bromine, chlorine, fluorine atom, etc.), an alkyl group (C 1-4 alkyl group such as methyl, ethyl, butyl, t-butyl group, etc.) or a protecting group. And a hydroxyl group, an amino group protected with a protecting group, a carboxyl group protected with a protecting group, and the like. Examples of the protecting group include protecting groups usually used in the field of organic synthesis.
[0007]
In the organometallic compound represented by the formula (2), examples of the metal atom in M include an alkali metal such as lithium and a transfer metal atom such as cerium, titanium, and copper. The metal atom may have a ligand. Examples of the ligand include a halogen atom such as a chlorine atom, an alkoxy group such as an isopropoxy group, a dialkylamino group such as a diethylamino group, an alkali metal atom such as a cyano group, an alkyl group, and a lithium atom.
[0008]
R 1 represents an alkyl group, and examples thereof include C 1-6 alkyl groups such as methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, and t-butyl groups. In the formula (3), examples of the halogen atom represented by Y include chlorine, bromine, and iodine atoms.
[0009]
Representative examples of the organometallic compound represented by the formula (2) include organotitanium compounds such as dimethyldiisopropoxytitanium (such as art complexes of organotitanium); methylmagnesium bromide, ethylmagnesium bromide, butylmagnesium bromide, etc. Organic magnesium compounds (such as Grignard reagent); organic lithium compounds such as methyllithium and butyllithium. The organomagnesium compound can also be used in combination with a copper halide.
[0010]
The usage-amount of the organometallic compound represented by the said Formula (2) is about 1-2 mol with respect to 1 mol of 2-adamantanones represented by the said Formula (1).
[0011]
The reaction is usually performed in an organic solvent. The organic solvent is not particularly limited as long as it is inert to the reaction. For example, ethers such as diethyl ether, 1,2-dimethoxyethane, and tetrahydrofuran, and aliphatic hydrocarbons such as heptane, hexane, and octane can be used.
[0012]
The reaction temperature can be appropriately selected within the range of, for example, about −100 ° C. to 150 ° C. depending on the type of the organometallic compound. For example, in the organometallic compound represented by the formula (2), when M is a metal atom (for example, lithium), the reaction temperature is, for example, about −100 ° C. to 30 ° C. When a compound in which M represents a group represented by formula (3) is used as the compound of formula (2), the reaction temperature is, for example, about 0 ° C. to 150 ° C., preferably about 20 ° C. to 100 ° C. It is.
[0013]
The reaction can be performed by a conventional method such as a batch system, a semi-batch system, or a continuous system. After completion of the reaction, the reaction intermediate is quenched with water or the like (hydrolysis or the like) to produce 2-alkyl-2-adamantanol represented by the formula (4). In the hydrolysis, an aqueous solution of an acid such as dilute hydrochloric acid or dilute sulfuric acid is often used.
[0014]
[Step (B)]
In the step (B), the 2-alkyl-2-adamantanol produced in the step (A) is reacted with (meth) acrylic acid halide without isolation, and represented by the formula (5). -Generate alkyl-2-adamantyl (meth) acrylates.
[0015]
Usually, the reaction mixture after the quench treatment is subjected to appropriate operations such as liquidity adjustment (neutralization, etc.), solvent exchange, liquid separation (extraction), concentration, dilution, etc., and then subjected to step (B). More specifically, for example, when a solvent miscible with water (for example, tetrahydrofuran) is used as the reaction solvent in the step (A), sodium hydroxide is added to the reaction mixture after the quench treatment as necessary. After adding and neutralizing an alkaline aqueous solution containing a basic substance such as the above, the reaction solvent is distilled off, an organic solvent that can be separated from water is added to the remaining liquid, and an organic layer and an aqueous layer And the obtained organic layer is subjected to step (B). The organic layer may be concentrated and / or cooled to make 2-alkyl-2-adamantanols into a slurry, or the slurry may be redissolved by heating and used for the step (B). Further, depending on the type of the reaction solvent in step (A), operations such as solvent exchange can be omitted.
[0016]
Examples of the solvent that can be separated from water include aromatic hydrocarbons such as toluene and xylene; aliphatic hydrocarbons such as hexane and heptane; alicyclic hydrocarbons such as cyclohexane and methylcyclohexane; ethyl ether and isopropyl ether. And chain ethers such as dibutyl ether; and mixtures thereof. A preferable solvent includes a solvent containing at least an aromatic hydrocarbon such as toluene. These solvents are used as a reaction solvent in the step (B). The reaction solvent is not limited to the above solvent, and is not particularly limited as long as it does not impair the reaction.
[0017]
Examples of the (meth) acrylic acid halide include acrylic acid halides such as acrylic acid chloride and acrylic acid bromide; and methacrylic acid halides such as methacrylic acid chloride and methacrylic acid bromide. The usage-amount of (meth) acrylic-acid halide is about 1-4 mol with respect to 1 mol of 2-alkyl-2-adamantanols, for example.
[0018]
The reaction between 2-alkyl-2-adamantanols and (meth) acrylic acid halide is usually performed in the presence of a base. Examples of the base include tertiary amines such as triethylamine and N-methylpiperidine, nitrogen atom-containing aromatic heterocyclic compounds such as pyridine, alkali metal alkoxides such as sodium methoxide, organic bases such as sodium acetate; And inorganic bases such as alkali metal hydroxides such as sodium carbonate, alkali metal carbonates such as sodium carbonate, and alkali metal hydrogen carbonates such as sodium hydrogen carbonate. These bases can be used alone or in combination of two or more. The usage-amount of a base is about 1-5 mol with respect to 1 mol of 2-alkyl-2-adamantanols, for example. A large excess of base can also be used.
[0019]
The reaction temperature at the time of reacting 2-alkyl-2-adamantanol and (meth) acrylic acid halide is usually about -50 ° C to 100 ° C, preferably about 0 to 70 ° C. The reaction can be performed by a conventional method such as a batch system, a semi-batch system, or a continuous system. In general, a method of sequentially adding (meth) acrylic acid halides to a slurry of 2-alkyl-2-adamantanols is performed.
[0020]
After completion of the reaction, it is represented by the above formula (5) by separation and purification means such as liquidity adjustment (neutralization, etc.), filtration, concentration, extraction, washing, distillation, crystallization, recrystallization, column chromatography, etc. 2-alkyl-2-adamantyl (meth) acrylates can be obtained.
[0021]
The 2-alkyl-2-adamantyl (meth) acrylate thus obtained is useful as a raw material for resists, ink resins, paints, adhesives, pressure-sensitive adhesives, and the like. In particular, a compound in which an alcohol moiety is eliminated by an acid to generate a free carboxylic acid can be used as a monomer raw material for a photosensitive resin as an acid-sensitive compound.
[0022]
【The invention's effect】
According to the method of the present invention, since 2-alkyl-2-adamantanols are not isolated, the crystallization, separation and drying steps can be omitted, the process is simplified, and 2-alkyl-2-adamantyl ( Meth) acrylates can be obtained in high yield. Therefore, the production method of the present invention is extremely excellent as a production method for industrial 2-alkyl-2-adamantyl (meth) acrylates.
[0023]
【Example】
EXAMPLES Hereinafter, although this invention is demonstrated in detail based on an Example, this invention is not limited by these Examples.
[0024]
Example 1
A flask equipped with a dropping funnel, a condenser and a stirrer was charged with 30 g (0.20 mol) of 2-adamantanone and 60 g of tetrahydrofuran, and 122 g of a tetrahydrofuran solution of methylmagnesium bromide (CH 3 MgBr) while controlling the temperature to 50 ° C. or lower. CH 3 MgBr: 0.225 mol) was added dropwise in about 1 hour. Thereafter, stirring was continued at 60 ° C. for 1 hour, and the contents were cooled to room temperature.
A 10 wt% aqueous sulfuric acid solution was placed in a flask equipped with a dropping funnel, a condenser and a stirrer, and the reaction mixture obtained above was added dropwise over about 1 hour while controlling the temperature at 10 ° C. or lower in a nitrogen gas atmosphere. Thereafter, the mixture was neutralized with a 5% by weight aqueous caustic soda solution and concentrated with an evaporator at normal pressure. 450 g of toluene was added to the remaining liquid and stirred. The toluene layer was separated and collected, and concentrated under reduced pressure until the residual liquid became about 250 g, to obtain a slurry of 2-methyl-2-adamantanol.
Add the above slurry to a flask equipped with a dropping funnel, condenser and stirrer, add 70 g (0.69 mol) of triethylamine, and control 50 g (0.48 mol) of methacrylic acid chloride to a reaction temperature of 30 ° C. or lower. The solution was added dropwise in about 2 hours. After completion of the dropwise addition, stirring was further continued at 50 ° C. for 10 hours. After cooling, 170 g of water was added dropwise at a temperature of 20 ° C. or lower. Then, after neutralizing with sodium carbonate aqueous solution and washing with brine, the organic layer was analyzed by liquid chromatography. As a result, 42.1 g (0.18 mol) of 2-methacryloyloxy-2-methyladamantane was formed. . The yield of 2-methacryloyloxy-2-methyladamantane was 90% based on 2-adamantanone.
[0025]
Comparative Example 1
A flask equipped with a dropping funnel, a condenser and a stirrer was charged with 30 g (0.20 mol) of 2-adamantanone and 60 g of tetrahydrofuran, and 122 g of a tetrahydrofuran solution of methylmagnesium bromide (CH 3 MgBr) while controlling the temperature to 50 ° C. or lower. CH 3 MgBr: 0.225 mol) was added dropwise in about 1 hour. Thereafter, stirring was continued at 60 ° C. for 1 hour, and the contents were cooled to room temperature.
A 10% by weight sulfuric acid aqueous solution was placed in a flask equipped with a dropping funnel, a condenser and a stirrer, and the reaction mixture obtained above was added dropwise over 1 hour while controlling the temperature at 10 ° C. or lower in a nitrogen gas atmosphere. Thereafter, the mixture was neutralized with a 5% by weight aqueous caustic soda solution and concentrated with an evaporator at normal pressure until the internal temperature reached 100 ° C. The precipitated crystals were filtered and dried to obtain 35 g of crystals.
The crystal obtained above, 300 g of toluene, and 70 g (0.69 mol) of triethylamine are put into a flask equipped with a dropping funnel, a condenser and a stirrer, and while controlling the reaction temperature to 30 ° C. or less, 50 g of methacrylic chloride. (0.48 mol) was added dropwise in about 2 hours. After completion of the dropwise addition, stirring was further continued at 50 ° C. for 10 hours. After cooling, 170 g of water was added dropwise at a temperature of 20 ° C. or lower. Thereafter, the solution was neutralized with an aqueous sodium carbonate solution, washed with brine, and the organic layer was analyzed by liquid chromatography. As a result, 35.1 g (0.15 mol) of 2-methacryloyloxy-2-methyladamantane was formed. . The yield of 2-methacryloyloxy-2-methyladamantane was 75% based on 2-adamantanone.

Claims (2)

(A)下記式(1)
Figure 0004667593
(アダマンタン環は置換基を有していてもよい)
で表される2−アダマンタノン類を、下記式(2)
1−M (2)
[式中、R1はアルキル基を示す。Mは配位子を有してもよい金属原子、または下記式(3)
−MgY (3)
(式中、Yはハロゲン原子を示す)
で表される基を示す]
で表される有機金属化合物と反応させて、下記式(4)
Figure 0004667593
(式中、R1は前記に同じ。アダマンタン環は置換基を有していてもよい)
で表される2−アルキル−2−アダマンタノール類を生成させる工程、及び(B)前記工程で生成した2−アルキル−2−アダマンタノール類を単離することなく(メタ)アクリル酸ハライドと反応させて、下記式(5)
Figure 0004667593
(式中、R2は水素原子又はメチル基を示す。R1は前記に同じ)
で表される2−アルキル−2−アダマンチル(メタ)アクリレート類を生成させる工程を含む2−アルキル−2−アダマンチル(メタ)アクリレート類の製造法。
(A) The following formula (1)
Figure 0004667593
(The adamantane ring may have a substituent)
2-adamantanone represented by the following formula (2)
R 1 -M (2)
[Wherein R 1 represents an alkyl group. M is a metal atom which may have a ligand, or the following formula (3)
-MgY (3)
(In the formula, Y represents a halogen atom)
Indicates a group represented by
Is reacted with an organometallic compound represented by the following formula (4):
Figure 0004667593
(In the formula, R 1 is the same as above. The adamantane ring may have a substituent)
And (B) a reaction with (meth) acrylic acid halide without isolation of the 2-alkyl-2-adamantanol produced in the above step. Let the following formula (5)
Figure 0004667593
(Wherein R 2 represents a hydrogen atom or a methyl group, R 1 is the same as above)
The manufacturing method of 2-alkyl- 2-adamantyl (meth) acrylate including the process of producing | generating 2-alkyl- 2-adamantyl (meth) acrylate represented by these.
工程(B)の反応溶媒として、少なくとも芳香族炭化水素を含む溶媒を用いる請求項1記載の2−アルキル−2−アダマンチル(メタ)アクリレート類の製造法。The method for producing 2-alkyl-2-adamantyl (meth) acrylates according to claim 1, wherein a solvent containing at least an aromatic hydrocarbon is used as the reaction solvent in the step (B).
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JP2005112824A (en) * 2003-10-10 2005-04-28 Daicel Chem Ind Ltd Fluorine-containing polymerizable adamantane derivative, method for producing the same and polymer compound
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0952864A (en) * 1995-08-09 1997-02-25 Nippon Oil & Fats Co Ltd Production of acrylic acid tertially-alkyl ester
JPH10182552A (en) * 1996-12-27 1998-07-07 Fujitsu Ltd Preparation of tertiary alcohol ester and resist material
JP2000229911A (en) * 1999-02-05 2000-08-22 Mitsubishi Rayon Co Ltd Production of 2-alkyl-2-adamantyl (meth)acrylates
WO2001087817A1 (en) * 2000-05-16 2001-11-22 Tokuyama Corporation Process for producing 2-alkyl-2-adamantyl ester
JP2002003448A (en) * 2000-06-20 2002-01-09 Tokuyama Corp Method of producing 2-alkyl-2-adamantyl (meth)acrylate

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4324985B2 (en) * 1997-04-22 2009-09-02 東ソー株式会社 Flame retardant acrylate derivative, method for producing the same, and flame retardant resin composition comprising the same
JPH10306057A (en) * 1997-05-08 1998-11-17 Showa Denko Kk New (meth)acrylate and its production
JP2000038362A (en) * 1998-07-22 2000-02-08 Tokuyama Corp Production of sublimable adamantanol
JP4020514B2 (en) * 1998-10-16 2007-12-12 ダイセル化学工業株式会社 Process for producing unsaturated carboxylic acid adamantyl esters
JP2000309558A (en) * 1999-02-22 2000-11-07 Sumitomo Chem Co Ltd Production of 2-adamanthyl(meth)acrylate compound
KR20010081853A (en) * 2000-02-19 2001-08-29 김동석 2-Alkyl-2-adamantyl 5-norbornene-2-carboxylates and producing method therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0952864A (en) * 1995-08-09 1997-02-25 Nippon Oil & Fats Co Ltd Production of acrylic acid tertially-alkyl ester
JPH10182552A (en) * 1996-12-27 1998-07-07 Fujitsu Ltd Preparation of tertiary alcohol ester and resist material
JP2000229911A (en) * 1999-02-05 2000-08-22 Mitsubishi Rayon Co Ltd Production of 2-alkyl-2-adamantyl (meth)acrylates
WO2001087817A1 (en) * 2000-05-16 2001-11-22 Tokuyama Corporation Process for producing 2-alkyl-2-adamantyl ester
JP2002003448A (en) * 2000-06-20 2002-01-09 Tokuyama Corp Method of producing 2-alkyl-2-adamantyl (meth)acrylate

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