JP2004026706A - Method for producing dihydric hydroxy compound and dihydric hydroxy compound - Google Patents

Method for producing dihydric hydroxy compound and dihydric hydroxy compound Download PDF

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JP2004026706A
JP2004026706A JP2002184415A JP2002184415A JP2004026706A JP 2004026706 A JP2004026706 A JP 2004026706A JP 2002184415 A JP2002184415 A JP 2002184415A JP 2002184415 A JP2002184415 A JP 2002184415A JP 2004026706 A JP2004026706 A JP 2004026706A
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group
compound
hydroxy
hydroxy compound
producing
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Japanese (ja)
Inventor
Ichiro Ogura
小椋 一郎
Kunihiro Morinaga
森永 邦裕
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DIC Corp
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Dainippon Ink and Chemicals Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a high-purity dihydric hydroxy compound suitable as a raw material for a thermosetting resin, a thermoplastic resin, a photosensitive material such as a photoresist for a semiconductor, or the like, a developer for heat-sensitive paper, or the like, having excellent heat resistance, flame retardance, moisture resistance, electric properties, optical properties, or the like, and to obtain the compound. <P>SOLUTION: The dihydric hydroxy compound is represented by formula (2) (R<SP>5</SP>-R<SP>8</SP>are each independently hydroxy group or a 1-4C alkyl group and one of them is surely hydroxy group; R<SP>9</SP>is hydrogen atom or an aryl group). The method for producing the dihydric hydroxy compound comprises subjecting a trisubstituted dihydroxybenzene (A) and a vicinal dicarbonyl compound (B) to a dehydration condensation reaction. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は耐熱性、難燃性、耐湿性、電気特性、光学特性などに優れ、半導体封止材、プリント配線基板、塗料、注型用途などのエポキシ樹脂、該樹脂用硬化剤、ビニルエステル樹脂、シアン酸エステル樹脂等の熱硬化性樹脂、ポリカーボネート樹脂、ポリエステル樹脂、ポリアリレート樹脂等の熱可塑性樹脂、半導体用フォトレジスト等の感光性材料、感熱紙用顕色剤等の原料として好適に用いることができる、2価ヒドロキシ化合物の製造方法及び2価ヒドロキシ化合物に関する。
【0002】
【従来の技術】
エポキシ樹脂などの熱硬化性樹脂、ポリカーボネート樹脂など熱可塑性樹脂などの合成樹脂分野、半導体用フォトレジスト等の感光性材料、感熱紙用顕色剤分野などでは、ビスフェノールAをはじめとする種々の2価ヒドロキシ化合物が用いられている。しかしながら、最近の主に電子材料分野の技術発展にともない、汎用2価ヒドロキシ化合物よりも耐熱性、難燃性、耐湿性、電気特性、光学特性などに優れる高純度の高機能性2価ヒドロキシ化合物の開発が待望されている。
【0003】
独国公開特許第3938282号公報においては、非置換ジヒドロキシベンゼンであるレゾルシンとベンジルとを反応させて下記構造式(3)で示される2価ヒドロキシ化合物の製造方法が記載されているが、レゾルシンは芳香核に置換基を有しないことからベンジルとの反応部位が2箇所以上あり副反応が起こり易く、高純度の化合物を得にくいという難点がある。
【化3】

Figure 2004026706
【0004】
【発明が解決しようとする課題】
上記の様な実情に鑑み、本発明の課題は、耐熱性、難燃性、耐湿性、電気特性、光学特性などに優れた熱硬化性樹脂、熱可塑性樹脂、半導体用フォトレジスト等の感光性材料、感熱紙用顕色剤等の原料として好適な、高純度の2価ヒドロキシ化合物の製造方法、およびその化合物を提供することにある。
【0005】
【課題を解決するための手段】
本発明者らはこの様な課題を解決すべく鋭意研究を重ねた結果、3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)とを脱水縮合させる製造方法は、前記独国公開公報の場合とは異なり、反応部位が1箇所に限定され、3つの置換基の立体障害により多核体物が副生せず、目的である2価ヒドロキシ化合物が容易に高純度で得られること、また、この製造方法で得られた化合物の中でも下記一般式(2)で示される化合物は、ビスフェノールAなどの汎用2価ヒドロキシ化合物よりも剛直な骨格を有しており、且つ芳香核に結合する3個の置換基が大きな立体障害を有するため、よりいっそう剛直性に優れることから耐熱性、難燃性、耐湿性、電気特性、光学特性などに優れた熱硬化性樹脂、熱可塑性樹脂、半導体用フォトレジスト等の感光性材料、感熱紙用顕色剤等の原料として好適な、新規2価ヒドロキシ化合物であることを見出し、本発明を完成させた。
【0006】
【化4】
Figure 2004026706
(式中のR〜Rがそれぞれ独立にヒドロキシ基、または炭素原子数1〜4のアルキル基であり、且つそのうち1つは必ずヒドロキシ基であり、Rが水素原子またはアリール基である。)
【0007】
すなわち、本発明は、3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)とを脱水縮合反応させることを特徴とする2価ヒドロキシ化合物の製造方法を提供するものである。
【0008】
また、本発明は、前記一般式(2)で示される2価ヒドロキシ化合物をも提供する。
【0009】
【発明の実施の形態】
以下、本発明を詳細に説明する。
本発明による2価ヒドロキシ化合物の製造方法は、3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)を脱水縮合反応させることを特徴とする。
【0010】
前記3置換ジヒドロキシベンゼン類(A)としては、2個のヒドロキシ基と3個のヒドロキシ基以外の置換基を有するベンゼン類であれば特に限定されるものではないが、中でも、下記一般式(1)で示されるものが好ましい。
【化5】
Figure 2004026706
(式中、R〜Rはそれぞれ独立にヒドロキシ基、アルキル基、アリール基、シクロアルキル基、アルコキシ基、カルボキシル基、アルコキシカルボニル基、またはアシル基を示し、且つそのうち1つは必ずヒドロキシ基である。)
【0011】
これらの中でも、置換基として炭素数1〜4のアルキル基を3個持つものが好ましく、例えば、トリメチルハイドロキノン、2,4,5−トリメチルレゾルシン、4,5,6−トリメチルレゾルシン、3,4,5−トリメチルカテコール、3,5,6−トリメチルカテコール、トリエチルハイドロキノン、2,4,5−トリエチルレゾルシン、4,5,6−トリエチルレゾルシン、3,4,5−トリエチルカテコール、3,5,6−トリエチルカテコール、トリプロピルハイドロキノン、2,4,5−トリプロピルレゾルシン、4,5,6−トリプロピルレゾルシン、3,4,5−トリプロピルカテコール、3,5,6−トリプロピルカテコール、トリブチルハイドロキノン、2,4,5−トリブチルレゾルシン、4,5,6−トリブチルレゾルシン、3,4,5−トリブチルカテコール、3,5,6−トリブチルカテコールなどのトリアルキル置換ジヒドロキシベンゼン類、トリフェニルハイドロキノン、2,4,5−トリフェニルレゾルシンなどのトリアリール置換ハイドキノン類等が挙げられ、これら好適な物の中でも対称性が優れる点、並びに得られる2価ヒドロキシ化合物の官能基濃度が高まり該化合物の耐熱性が優れる等の点から、トリメチルハイドロキノンが最も好ましい。
【0012】
また隣接ジカルボニル化合物(B)としては、隣接したカルボニル基を2個有する化合物であれば特に限定されるものではなく、例えばグリオキザール、ベンジル等が挙げられるが、反応性が良好である点、並びに得られる2価ヒドロキシ化合物の官能基濃度が高まり該化合物の耐熱性が優れる等の点から、グリオキザールが好ましい。
【0013】
本発明の2価ヒドロキシ化合物は前記一般式(2)で示されるものであり、その製造方法は特に限定されるものではないが、例えば、3置換ジヒドロキシベンゼン類(A)として前記一般式(1)中のR〜Rがそれぞれ独立にヒドロキシ基、または炭素原子数1〜4のアルキル基であり、且つそのうち1つは必ずヒドロキシ基である化合物を用い、隣接ジカルボニル化合物(B)としてグリオキザール、ベンジルを用いて本発明の製造方法によって脱水縮合反応させて得ることができる。
【0014】
これらの中でも、得られる2価ヒドロキシ化合物の官能基濃度が高まり該化合物の耐熱性が優れる等の点から好ましい化合物としては、例えば、3置換ジヒドロキシベンゼン類(A)としてトリメチルハイドロキノンを、隣接ジカルボニル化合物(B)としてグリオキザールを用いて本発明の製造方法によって脱水縮合反応させることにより得られる、下記構造式(4)で示される化合物が挙げられる。
【化6】
Figure 2004026706
【0015】
本発明の2価ヒドロキシ化合物の製造方法において、3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)との使用割合は、3置換ジヒドロキシベンゼン類(A)1モルに対して、通常、0.1〜10モルの範囲で用いるが、収率の経済性を考慮すると、0.3〜5モルの範囲が好ましい。
【0016】
本発明の製造方法における脱水縮合反応は、必要に応じて、ヒドロキシベンゼン類とカルボニル化合物を縮合反応する機能と2個のフェノール性水酸基から脱水反応させる機能とをもつ触媒を用い、無溶剤で、もしくは反応溶媒中で反応を行うことができる。尚、前記の2つの機能を持つ触媒は、両者を兼ね備えたものであっても、それぞれの機能を持ったものを併用しても良い。
【0017】
前記触媒としては特に限定されるものではないが、例えば、硫酸、塩酸、硝酸、トルエンスルホン酸、メタンスルホン酸、キシレンスルホン酸、シュウ酸等の酸触媒が挙げられ、これらの中でも反応性が良好である点からトルエンスルホン酸が好ましい。
【0018】
前記触媒の使用量は特に限定されるものではないが、原料である3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)の合計100重量部に対して、0.01重量部〜10重量部の範囲で用いることが好ましい。
【0019】
前記反応溶剤としては、原料である3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)が溶解するものであれば特に限定されるものではないが、例えば、アルコール系溶剤、ケトン系溶剤、芳香族炭化水素系溶剤、これらの2種以上の混合溶剤等が挙げられ、これらの中でも、アルコール系溶剤が好ましい。
【0020】
前記アルコール系溶剤としては、原料、得られる生成物の溶解度、反応条件、反応の経済性等を考慮して、例えば、メタノール、エタノール、イソプロピルアルコール、n−プロピルアルコール、t−ブチルアルコール、イソブチルアルコール、n−ブチルアルコール、エチレングリコールモノメチルエーテル(メチルセロソルブ)、エチレングリコールモノエチルエーテル(エチルセロソルブ)、エチレングリコールモノブチルエーテル(ブチルセロソルブ)、ジエチレングリコールモノブチルエーテル(ブチルカルビトール)等が挙げられ、これらの中でも反応性並びに溶解性が良好である点から、エチレングリコールモノメチルエーテル(メチルセロソルブ)、エチレングリコールモノエチルエーテル(エチルセロソルブ)、エチレングリコールモノブチルエーテル(ブチルセロソルブ)、ジエチレングリコールモノブチルエーテル(ブチルカルビトール)が好ましい。
【0021】
前記芳香族炭化水素系溶剤としては、例えば、トルエン、キシレン、クメン等が挙げられる。
【0022】
反応溶剤の使用量は、特に制限されるものではないが、原料である3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)との合計100重量部に対して、20重量部〜500重量部の範囲が好ましい。
【0023】
本発明の製造方法における脱水縮合反応は、通常、20〜200℃、好ましくは50〜150℃の温度にて、攪拌しながら2〜50時間、好ましくは5〜24時間反応を行う。
【0024】
反応終了後、目的物質が結晶化して析出した場合は、その結晶物を濾別して、次いで適当な有機溶剤を用いて再結晶精製する、或いは目的物質が溶解している場合は、水やヘキサンなどの貧溶媒を用いて再沈殿精製、或いは溶媒を蒸留で除去した後に、再結晶精製等の精製処理などを行い、純度の高い目的化合物を得ることができる。
【0025】
【実施例】
以下本発明の実施例について説明するが、本発明は実施例により何ら限定されるものではない。
【0026】
実施例1
撹拌装置と加熱装置が付いた1リットル四つ口フラスコに、トリメチルハイドロキノン152g(1.0モル)をエチレングリコールモノエチルエーテル400gに溶解した。その溶液にパラトルエンスルホン酸4.6gを加え、40重量%グリオキザール72.5g(0.5モル)を発熱に注意しながら滴下して、滴下終了後、還流温度で15時間撹拌した。次いで、冷却して析出結晶を濾別し、中性になるまで繰り返し水で洗浄した後に、乾燥して目的の2価ヒドロキシ化合物94g(GPC純度:99重量%)を得た。図1のNMRスペクトル(13C)では50ppmに下記構造式(5)中のC(1)のピーク、また、113ppmに下記構造式(5)中のC(2)のピークを確認した。図2のIRスペクトル(KBr)では、原料グリオキザールのカルボニル基による吸収は示さず、980cm 及び1200cm に環状エーテルの吸収を示した。図3のマススペクトルは326のピークを示した。これらの測定の結果から、得られた化合物が下記構造式(5)の化学構造をもつものであることを確認した。
【化7】
Figure 2004026706
【0027】
【発明の効果】
本発明によれば、耐熱性、難燃性、耐湿性、電気特性、光学特性などに優れた熱硬化性樹脂、熱可塑性樹脂、半導体用フォトレジスト等の感光性材料、感熱紙用顕色剤等の原料として好適な、高純度の2価ヒドロキシ化合物の製造方法、およびその化合物を提供できる。
【図面の簡単な説明】
【図1】実施例1で得られた2価ヒドロキシ化合物のNMRスペクトル(13C)である。
【図2】実施例1で得られた2価ヒドロキシ化合物のIRスペクトルである。
【図3】実施例1で得られた2価ヒドロキシ化合物のマススペクトルである。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention is excellent in heat resistance, flame retardancy, moisture resistance, electrical properties, optical properties, etc., epoxy resins for semiconductor encapsulants, printed wiring boards, paints, casting applications, curing agents for the resins, vinyl ester resins It is preferably used as a raw material for thermosetting resins such as cyanate ester resins, thermoplastic resins such as polycarbonate resins, polyester resins and polyarylate resins, photosensitive materials such as photoresists for semiconductors, and color developers for thermal papers. The present invention relates to a method for producing a divalent hydroxy compound and a divalent hydroxy compound.
[0002]
[Prior art]
In the field of synthetic resins such as thermosetting resins such as epoxy resins, thermoplastic resins such as polycarbonate resins, photosensitive materials such as photoresists for semiconductors, and the field of color developing agents for thermal papers, various types of bisphenol A and the like are used. Multivalent hydroxy compounds have been used. However, with the recent technological development mainly in the field of electronic materials, high-purity highly functional divalent hydroxy compounds having better heat resistance, flame retardancy, moisture resistance, electrical properties, optical properties, etc. than general-purpose divalent hydroxy compounds. The development of is expected.
[0003]
DE-A-3938282 describes a method for producing a divalent hydroxy compound represented by the following structural formula (3) by reacting unresubstituted dihydroxybenzene resorcinol with benzyl. Since the aromatic nucleus does not have a substituent, there are two or more reaction sites with benzyl, which tend to cause a side reaction, and it is difficult to obtain a high-purity compound.
Embedded image
Figure 2004026706
[0004]
[Problems to be solved by the invention]
In view of the above circumstances, the object of the present invention is to provide a photosensitive resin such as a thermosetting resin, a thermoplastic resin, and a semiconductor photoresist excellent in heat resistance, flame retardancy, moisture resistance, electric characteristics, and optical characteristics. An object of the present invention is to provide a method for producing a high-purity divalent hydroxy compound, which is suitable as a material or a raw material for a developer for thermal paper, and a compound thereof.
[0005]
[Means for Solving the Problems]
The present inventors have conducted intensive studies to solve such problems, and as a result, the production method of dehydrating and condensing a trisubstituted dihydroxybenzene (A) and an adjacent dicarbonyl compound (B) is disclosed in the above-mentioned German Patent Publication. Unlike the case of the above, the reaction site is limited to one site, the polynuclear compound is not by-produced due to the steric hindrance of the three substituents, and the objective divalent hydroxy compound can be easily obtained with high purity. Among the compounds obtained by this production method, the compound represented by the following general formula (2) has a stiffer skeleton than a general-purpose divalent hydroxy compound such as bisphenol A and binds to an aromatic nucleus. Thermosetting resins, thermoplastic resins, and semiconductors that have excellent heat resistance, flame retardancy, moisture resistance, electrical properties, optical properties, etc. because they have greater steric hindrance because each substituent has great steric hindrance Pho Photosensitive material such as a resist, suitable as a raw material, such as for heat-sensitive paper developer, found that a novel dihydroxy compound, and completed the present invention.
[0006]
Embedded image
Figure 2004026706
(Wherein R 5 to R 8 are each independently a hydroxy group or an alkyl group having 1 to 4 carbon atoms, and one of them is always a hydroxy group, and R 9 is a hydrogen atom or an aryl group. .)
[0007]
That is, the present invention provides a method for producing a divalent hydroxy compound, which comprises subjecting a trisubstituted dihydroxybenzene (A) and an adjacent dicarbonyl compound (B) to a dehydration condensation reaction.
[0008]
The present invention also provides a divalent hydroxy compound represented by the general formula (2).
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail.
The method for producing a divalent hydroxy compound according to the present invention is characterized in that a trisubstituted dihydroxybenzene (A) and an adjacent dicarbonyl compound (B) are subjected to a dehydration condensation reaction.
[0010]
The trisubstituted dihydroxybenzenes (A) are not particularly limited as long as they are benzenes having a substituent other than two hydroxy groups and three hydroxy groups. Among them, the following general formula (1) ) Are preferred.
Embedded image
Figure 2004026706
(Wherein, R 1 to R 4 each independently represent a hydroxy group, an alkyl group, an aryl group, a cycloalkyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, and one of them is always a hydroxy group Is.)
[0011]
Among these, those having three alkyl groups having 1 to 4 carbon atoms as substituents are preferable, and examples thereof include trimethylhydroquinone, 2,4,5-trimethylresorcin, 4,5,6-trimethylresorcin, and 3,4. 5-trimethylcatechol, 3,5,6-trimethylcatechol, triethylhydroquinone, 2,4,5-triethylresorcin, 4,5,6-triethylresorcin, 3,4,5-triethylcatechol, 3,5,6- Triethylcatechol, tripropylhydroquinone, 2,4,5-tripropylresorcin, 4,5,6-tripropylresorcin, 3,4,5-tripropylcatechol, 3,5,6-tripropylcatechol, tributylhydroquinone, 2,4,5-tributylresorcin, 4,5,6-tributylresorcinol Trialkyl-substituted dihydroxybenzenes such as rusin, 3,4,5-tributylcatechol and 3,5,6-tributylcatechol, and triaryl-substituted hydroquinones such as triphenylhydroquinone and 2,4,5-triphenylresorcin; Among them, trimethylhydroquinone is most preferable in terms of excellent symmetry, and the fact that the functional group concentration of the obtained divalent hydroxy compound is increased and the heat resistance of the compound is excellent.
[0012]
The adjacent dicarbonyl compound (B) is not particularly limited as long as it is a compound having two adjacent carbonyl groups, and examples thereof include glyoxal and benzyl. Glyoxal is preferred from the viewpoint that the functional group concentration of the obtained divalent hydroxy compound is increased and the heat resistance of the compound is excellent.
[0013]
The divalent hydroxy compound of the present invention is represented by the general formula (2), and its production method is not particularly limited. For example, the trivalent dihydroxybenzenes (A) may be represented by the general formula (1) A) wherein R 1 to R 4 are each independently a hydroxy group or an alkyl group having 1 to 4 carbon atoms, and one of them is always a hydroxy group, and as the adjacent dicarbonyl compound (B) It can be obtained by performing a dehydration condensation reaction according to the production method of the present invention using glioxal and benzyl.
[0014]
Among these, preferred compounds from the viewpoint that the functional group concentration of the obtained divalent hydroxy compound is increased and the heat resistance of the compound is excellent are, for example, trimethylhydroquinone as trisubstituted dihydroxybenzenes (A), and adjacent dicarbonyl. Examples of the compound (B) include a compound represented by the following structural formula (4), which is obtained by performing a dehydration condensation reaction according to the production method of the present invention using glyoxal.
Embedded image
Figure 2004026706
[0015]
In the method for producing a divalent hydroxy compound of the present invention, the use ratio of the trisubstituted dihydroxybenzenes (A) and the adjacent dicarbonyl compound (B) is usually based on 1 mol of the trisubstituted dihydroxybenzenes (A). Although it is used in the range of 0.1 to 10 mol, the range of 0.3 to 5 mol is preferable in consideration of the economy of the yield.
[0016]
The dehydration condensation reaction in the production method of the present invention, if necessary, using a catalyst having a function of performing a condensation reaction of hydroxybenzenes and a carbonyl compound and a function of performing a dehydration reaction from two phenolic hydroxyl groups, without solvent, Alternatively, the reaction can be performed in a reaction solvent. The catalyst having the above two functions may have both functions, or may have both functions.
[0017]
The catalyst is not particularly limited, but examples thereof include acid catalysts such as sulfuric acid, hydrochloric acid, nitric acid, toluenesulfonic acid, methanesulfonic acid, xylenesulfonic acid, and oxalic acid. Thus, toluenesulfonic acid is preferred.
[0018]
The amount of the catalyst used is not particularly limited, but may be 0.01 to 10 parts by weight based on 100 parts by weight of the total of the raw materials of the trisubstituted dihydroxybenzenes (A) and the adjacent dicarbonyl compound (B). It is preferable to use in the range of parts by weight.
[0019]
The reaction solvent is not particularly limited as long as it can dissolve the raw materials of the 3-substituted dihydroxybenzenes (A) and the adjacent dicarbonyl compound (B). Examples thereof include alcohol solvents and ketone solvents. And aromatic hydrocarbon-based solvents, and mixed solvents of two or more of these. Among them, alcohol-based solvents are preferable.
[0020]
Examples of the alcohol-based solvent include, for example, methanol, ethanol, isopropyl alcohol, n-propyl alcohol, t-butyl alcohol, and isobutyl alcohol in consideration of the raw materials, the solubility of the obtained product, reaction conditions, and the economics of the reaction. , N-butyl alcohol, ethylene glycol monomethyl ether (methyl cellosolve), ethylene glycol monoethyl ether (ethyl cellosolve), ethylene glycol monobutyl ether (butyl cellosolve), diethylene glycol monobutyl ether (butyl carbitol), and the like. Ethylene glycol monomethyl ether (methyl cellosolve), ethylene glycol monoethyl ether (ethyl cellosolve), ethylene Recall monobutyl ether (butyl cellosolve), diethylene glycol monobutyl ether (butyl carbitol) are preferred.
[0021]
Examples of the aromatic hydrocarbon-based solvent include toluene, xylene, cumene and the like.
[0022]
Although the amount of the reaction solvent used is not particularly limited, it is 20 parts by weight to 500 parts by weight based on 100 parts by weight of the total of the raw materials of the trisubstituted dihydroxybenzenes (A) and the adjacent dicarbonyl compound (B). A range of parts by weight is preferred.
[0023]
The dehydration condensation reaction in the production method of the present invention is usually performed at a temperature of 20 to 200 ° C, preferably 50 to 150 ° C, with stirring for 2 to 50 hours, preferably 5 to 24 hours.
[0024]
After completion of the reaction, if the target substance crystallizes out and precipitates, the crystal is filtered off and then recrystallized and purified using an appropriate organic solvent, or, if the target substance is dissolved, water or hexane. After reprecipitation purification using a poor solvent described above, or removal of the solvent by distillation, purification treatment such as recrystallization purification is performed to obtain a highly pure target compound.
[0025]
【Example】
Hereinafter, examples of the present invention will be described, but the present invention is not limited to the examples.
[0026]
Example 1
In a 1-liter four-necked flask equipped with a stirrer and a heating device, 152 g (1.0 mol) of trimethylhydroquinone was dissolved in 400 g of ethylene glycol monoethyl ether. 4.6 g of p-toluenesulfonic acid was added to the solution, and 72.5 g (0.5 mol) of 40% by weight glyoxal was added dropwise while paying attention to heat generation. After completion of the addition, the mixture was stirred at reflux temperature for 15 hours. Then, the mixture was cooled and the precipitated crystals were separated by filtration, washed repeatedly with water until neutral, and dried to obtain 94 g of the desired divalent hydroxy compound (GPC purity: 99% by weight). In the NMR spectrum ( 13 C) of FIG. 1, a peak of C (1) in the following structural formula (5) was confirmed at 50 ppm, and a peak of C (2) in the following structural formula (5) was confirmed at 113 ppm. In IR spectrum (KBr) of Fig. 2, the absorption by the carbonyl group of the starting glyoxal not shown, 980 cm - showed absorptions at cyclic ether 1 - 1 and 1200 cm. The mass spectrum in FIG. 3 showed 326 peaks. From the results of these measurements, it was confirmed that the obtained compound had the chemical structure of the following structural formula (5).
Embedded image
Figure 2004026706
[0027]
【The invention's effect】
According to the present invention, a thermosetting resin, a thermoplastic resin, a photosensitive material such as a photoresist for a semiconductor, and a developer for a thermal paper, which are excellent in heat resistance, flame retardancy, moisture resistance, electric properties, optical properties, and the like. It is possible to provide a method for producing a high-purity divalent hydroxy compound, which is suitable as a raw material of the above, and a compound thereof.
[Brief description of the drawings]
FIG. 1 is an NMR spectrum ( 13 C) of a divalent hydroxy compound obtained in Example 1.
FIG. 2 is an IR spectrum of the divalent hydroxy compound obtained in Example 1.
FIG. 3 is a mass spectrum of the divalent hydroxy compound obtained in Example 1.

Claims (6)

3置換ジヒドロキシベンゼン類(A)と隣接ジカルボニル化合物(B)とを脱水縮合反応させることを特徴とする2価ヒドロキシ化合物の製造方法。A method for producing a divalent hydroxy compound, comprising subjecting a trisubstituted dihydroxybenzene (A) and an adjacent dicarbonyl compound (B) to a dehydration condensation reaction. 3置換ジヒドロキシベンゼン類(A)が下記一般式(1)で示される化合物である請求項1記載の2価ヒドロキシ化合物の製造方法。
Figure 2004026706
(式中、R〜Rはそれぞれ独立にヒドロキシ基、アルキル基、アリール基、シクロアルキル基、アルコキシ基、カルボキシル基、アルコキシカルボニル基、またはアシル基を示し、且つそのうち1つは必ずヒドロキシ基である。)
The method for producing a divalent hydroxy compound according to claim 1, wherein the trisubstituted dihydroxybenzenes (A) are compounds represented by the following general formula (1).
Figure 2004026706
(Wherein, R 1 to R 4 each independently represent a hydroxy group, an alkyl group, an aryl group, a cycloalkyl group, an alkoxy group, a carboxyl group, an alkoxycarbonyl group, or an acyl group, and one of them is always a hydroxy group Is.)
上記一般式(1)中のR〜Rがそれぞれ独立にヒドロキシ基、または炭素原子数1〜4のアルキル基であり、且つそのうち1つは必ずヒドロキシ基である、請求項2記載の2価ヒドロキシ化合物の製造方法。3. The method according to claim 2, wherein R 1 to R 4 in the general formula (1) are each independently a hydroxy group or an alkyl group having 1 to 4 carbon atoms, and one of them is always a hydroxy group. A method for producing a multivalent hydroxy compound. 3置換ジヒドロキシベンゼン類(A)がトリメチルハイドロキノンであり、隣接ジカルボニル化合物(B)がグリオキザールである請求項1記載の2価ヒドロキシ化合物の製造方法。The method for producing a divalent hydroxy compound according to claim 1, wherein the trisubstituted dihydroxybenzenes (A) are trimethylhydroquinone, and the adjacent dicarbonyl compound (B) is glyoxal. 下記一般式(2)で示される2価ヒドロキシ化合物。
Figure 2004026706
(式中、R〜Rがそれぞれ独立にヒドロキシ基、または炭素原子数1〜4のアルキル基であり、且つそのうち1つは必ずヒドロキシ基であり、Rが水素原子またはアリール基である。)
A divalent hydroxy compound represented by the following general formula (2).
Figure 2004026706
(Wherein, R 5 to R 8 are each independently a hydroxy group or an alkyl group having 1 to 4 carbon atoms, and one of them is always a hydroxy group, and R 9 is a hydrogen atom or an aryl group. .)
前記一般式(2)中のR、R及びRがメチル基、Rがヒドロキシ基、Rが水素原子である、請求項5記載の2価ヒドロキシ化合物。The divalent hydroxy compound according to claim 5 , wherein R 5 , R 7 and R 8 in the general formula (2) are a methyl group, R 6 is a hydroxy group, and R 9 is a hydrogen atom.
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009514945A (en) * 2005-11-03 2009-04-09 ザ プロクター アンド ギャンブル カンパニー Personal care composition

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009514945A (en) * 2005-11-03 2009-04-09 ザ プロクター アンド ギャンブル カンパニー Personal care composition
JP2012001562A (en) * 2005-11-03 2012-01-05 Procter & Gamble Co Personal care composition

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