WO2018083881A1 - Method for producing polyvalent glycidyl compound - Google Patents
Method for producing polyvalent glycidyl compound Download PDFInfo
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- WO2018083881A1 WO2018083881A1 PCT/JP2017/032355 JP2017032355W WO2018083881A1 WO 2018083881 A1 WO2018083881 A1 WO 2018083881A1 JP 2017032355 W JP2017032355 W JP 2017032355W WO 2018083881 A1 WO2018083881 A1 WO 2018083881A1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D301/00—Preparation of oxiranes
- C07D301/02—Synthesis of the oxirane ring
- C07D301/03—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds
- C07D301/12—Synthesis of the oxirane ring by oxidation of unsaturated compounds, or of mixtures of unsaturated and saturated compounds with hydrogen peroxide or inorganic peroxides or peracids
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D303/00—Compounds containing three-membered rings having one oxygen atom as the only ring hetero atom
- C07D303/02—Compounds containing oxirane rings
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G59/00—Polycondensates containing more than one epoxy group per molecule; Macromolecules obtained by polymerising compounds containing more than one epoxy group per molecule using curing agents or catalysts which react with the epoxy groups
- C08G59/02—Polycondensates containing more than one epoxy group per molecule
Abstract
Description
[1]過酸化水素水溶液を酸化剤として用いて、アリル基を3つ以上有する多価アリル化合物のアリル基の炭素-炭素二重結合をエポキシ化する多価グリシジル化合物の製造方法において、エポキシ化反応を1段階で行い、生成するグリシジル基の加水分解体の比率(加水分解率)が0.5%~10%の範囲内にあるときに反応を停止することを特徴とする多価グリシジル化合物の製造方法。
[2]前記エポキシ化反応をアセトニトリル及びアルコールの存在下で行なう[1]に記載の多価グリシジル化合物の製造方法。
[3]前記アルコールが炭素数1~4のアルコールである[2]に記載の多価グリシジル化合物の製造方法。
[4]前記アリル基が酸素原子に結合してアリルエーテル基を形成しているか、又はアミノ基に結合してアリルアミノ基を形成している[1]~[3]のいずれかに記載の多価グリシジル化合物の製造方法。
[5]前記多価アリル化合物がトリメチロールプロパントリアリルエーテル、グリセリントリアリルエーテル、ペンタエリスリトールトリアリルエーテル、ペンタエリスリトールテトラアリルエーテル、ジトリメチロールプロパントリアリルエーテル、ジトリメチロールプロパンテトラアリルエーテル、ジグリセリントリアリルエーテル、ジグリセリンテトラアリルエーテル、エリスリトールトリアリルエーテル、エリスリトールテトラアリルエーテル、キシリトールトリアリルエーテル、キシリトールテトラアリルエーテル、キシリトールペンタアリルエーテル、ジペンタエリスリトールトリアリルエーテル、ジペンタエリスリトールテトラアリルエーテル、ジペンタエリスリトールペンタアリルエーテル、ジペンタエリスリトールヘキサアリルエーテル、ソルビトールトリアリルエーテル、ソルビトールテトラアリルエーテル、ソルビトールペンタアリルエーテル、ソルビトールヘキサアリルエーテル、イノシトールトリアリルエーテル、イノシトールテトラアリルエーテル、イノシトールペンタアリルエーテル、イノシトールヘキサアリルエーテル、フェノールノボラック型ポリアリルエーテル、クレゾール型ポリアリルエーテル、ナフタレン含有ノボラック型ポリアリルエーテル、テトラアリルジアミノジフェニルメタン、トリアリルイソシアヌレート、ジアリルアミノフェノールアリルエーテルからなる群のいずれかである[1]~[4]のいずれかに記載の多価グリシジル化合物の製造方法。 That is, the present invention is as follows.
[1] Epoxidation in a method for producing a polyvalent glycidyl compound in which a carbon-carbon double bond of an allyl group of a polyvalent allyl compound having three or more allyl groups is epoxidized using an aqueous hydrogen peroxide solution as an oxidizing agent A polyvalent glycidyl compound characterized in that the reaction is stopped in one stage and the reaction is stopped when the ratio of the glycidyl group hydrolyzate produced (hydrolysis rate) is in the range of 0.5% to 10%. Manufacturing method.
[2] The method for producing a polyvalent glycidyl compound according to [1], wherein the epoxidation reaction is performed in the presence of acetonitrile and alcohol.
[3] The method for producing a polyvalent glycidyl compound according to [2], wherein the alcohol is an alcohol having 1 to 4 carbon atoms.
[4] The polyaryl group according to any one of [1] to [3], wherein the allyl group is bonded to an oxygen atom to form an allyl ether group, or is bonded to an amino group to form an allylamino group. For producing a monovalent glycidyl compound.
[5] The polyvalent allyl compound is trimethylolpropane triallyl ether, glyceryl triallyl ether, pentaerythritol triallyl ether, pentaerythritol tetraallyl ether, ditrimethylolpropane triallyl ether, ditrimethylolpropane tetraallyl ether, diglycerin tri Allyl ether, diglycerin tetraallyl ether, erythritol triallyl ether, erythritol tetraallyl ether, xylitol triallyl ether, xylitol tetraallyl ether, xylitol pentaallyl ether, dipentaerythritol triallyl ether, dipentaerythritol tetraallyl ether, dipenta Erythritol pentaallyl ether, dipentaerythritol hexa Ril ether, sorbitol triallyl ether, sorbitol tetraallyl ether, sorbitol pentaallyl ether, sorbitol hexaallyl ether, inositol triallyl ether, inositol tetraallyl ether, inositol pentaallyl ether, inositol hexaallyl ether, phenol novolac polyallyl ether, cresol A polyaryl ether, naphthalene-containing novolak polyallyl ether, tetraallyl diaminodiphenyl methane, triallyl isocyanurate, diallyl aminophenol allyl ether, or any one of [1] to [4] For producing a monovalent glycidyl compound.
本発明の多価グリシジル化合物の製造方法は、過酸化水素水溶液を酸化剤として用いて、炭素-炭素二重結合を有する有機化合物の該炭素-炭素二重結合をエポキシ化するグリシジル化合物の製造方法において、前記有機化合物としてアリル基を3つ以上有する多価アリル化合物を基質として用い、エポキシ化反応を1段階で行い、生成したグリシジル基の加水分解体の比率が0.5~10%の範囲内にあるときに反応を停止することを特徴とする。 Hereinafter, the present invention will be described in detail.
The method for producing a polyvalent glycidyl compound of the present invention is a method for producing a glycidyl compound in which an organic compound having a carbon-carbon double bond is epoxidized using an aqueous hydrogen peroxide solution as an oxidizing agent. In which the epoxidation reaction is carried out in one step using a polyvalent allyl compound having three or more allyl groups as the organic compound, and the ratio of the hydrolyzate of glycidyl group produced is in the range of 0.5 to 10% It is characterized by stopping the reaction when it is inside.
・過酸化水素濃度
特開平6-130051に記載の方法を参考に、ヨウ化カリウム、遊離したヨードをチオ硫酸ナトリウム標準液で滴定して過酢酸濃度を測定し、次いで、過酸化水素に対して大過剰のヨウ化カリウム水溶液、希硫酸、及びモリブデン酸アンモニウム水溶液を添加し、再度遊離したヨードをチオ硫酸ナトリウム標準液、デンプン溶液を呈色試薬として、滴定して過酸化水素濃度を測定する。
・加水分解率
まず、反応液中の多価グリシジルエーテル化合物をカラムクロマトグラフィー(関東化学株式会社製、シリカゲル60(球状))により単離し、1H-NMR分析により同定した後に、UHPLC分析(日本Waters社製、ACQUITY UPLC(TM)BEH C18、溶出溶媒:アセトニトリル及び水、グラジエント法)し、多価グリシジルエーテル化合物の検出時間を決定する。次に、反応液をUHPLC分析(日本Waters社製、ACQUITY UPLC(TM)BEH C18、溶出溶媒:アセトニトリル及び水、グラジエント法)し、多価グリシジルエーテル化合物を基準として以下(ア)~(ウ)の3領域の面積をそれぞれ積算して求める。
(ア)多価グリシジルエーテル化合物の検出時間より短時間の領域:目的物のグリシジル基加水分解体
(イ)多価グリシジルエーテル化合物のピーク
(ウ)多価グリシジルエーテル化合物の検出時間より長時間の領域:反応中間体と推定されるアリルエーテル体
加水分解率は以下の式より求める。
加水分解率={(ア)の面積}/{(ア)(イ)(ウ)の面積合計} [Reaction conditions]
-Hydrogen peroxide concentration Referring to the method described in JP-A-6-130051, potassium iodide and free iodine were titrated with a sodium thiosulfate standard solution to measure the peracetic acid concentration. A large excess of aqueous potassium iodide solution, dilute sulfuric acid, and aqueous ammonium molybdate solution are added, and the liberated iodine is titrated using a sodium thiosulfate standard solution and a starch solution as a color reagent to measure the hydrogen peroxide concentration.
Hydrolysis rate First, the polyvalent glycidyl ether compound in the reaction solution was isolated by column chromatography (silica gel 60 (spherical), manufactured by Kanto Chemical Co., Inc.) and identified by 1 H-NMR analysis, followed by UHPLC analysis (Japan Waters, ACQUITY UPLC (TM) BEH C18, elution solvent: acetonitrile and water, gradient method), and the detection time of the polyvalent glycidyl ether compound is determined. Next, the reaction solution was subjected to UHPLC analysis (manufactured by Waters Japan, ACQUITY UPLC (TM) BEH C18, elution solvent: acetonitrile and water, gradient method), and the following (a) to (c) based on the polyvalent glycidyl ether compound. Are obtained by integrating the areas of the three regions.
(A) Area shorter than the detection time of the polyvalent glycidyl ether compound: glycidyl group hydrolyzate of the target product (a) Peak of the polyvalent glycidyl ether compound (U) Longer than the detection time of the polyvalent glycidyl ether compound Region: Allyl ether hydrolysis rate estimated as a reaction intermediate is obtained from the following formula.
Hydrolysis rate = {(A) area} / {(A) (I) (U) total area}
・粗収率
以下の式より算出する。
粗収率=(後処理後に得られた生成物の取得量)/(仕込み量から算出される理論取得量)
・基質の純度
まず、基質をカラムクロマトグラフィー(関東化学株式会社製、シリカゲル60(球状))により単離、1H-NMR分析により同定した後に、UHPLC分析(日本Waters社製、ACQUITY UPLC(TM)BEH C18、溶出溶媒:アセトニトリル及び水、グラジエント法)し、基質の検出時間を決定する。次に、反応液をUHPLC分析(日本Waters社製、ACQUITY UPLC(TM)BEH C18、溶出溶媒:アセトニトリル及び水、グラジエント法)し、基質を基準として以下(ア)~(ウ)の3領域の面積をそれぞれ積算して求める。
(ア)基質の検出時間より短時間の領域
(イ)基質のピーク
(ウ)基質の検出時間より長時間の領域
基質の純度は以下の式より算出する。
基質の純度={(イ)の面積}/{(ア)(イ)(ウ)の面積合計} [Evaluation]
-Crude yield Calculated from the following formula.
Crude yield = (acquired amount of product obtained after post-treatment) / (theoretical acquired amount calculated from the charged amount)
-Substrate purity First, the substrate was isolated by column chromatography (manufactured by Kanto Chemical Co., Inc., silica gel 60 (spherical)) and identified by 1 H-NMR analysis, followed by UHPLC analysis (manufactured by Waters, Japan, ACQUITY UPLC (TM ) BEH C18, elution solvent: acetonitrile and water, gradient method) and determine substrate detection time. Next, the reaction solution was subjected to UHPLC analysis (manufactured by Japan Waters Co., Ltd., ACQUITY UPLC (TM) BEH C18, elution solvent: acetonitrile and water, gradient method), and the following three regions (a) to (c) were used based on the substrate. Calculate the area by integrating each area.
(A) Region shorter than substrate detection time (A) Substrate peak (C) Region longer than substrate detection time The purity of the substrate is calculated from the following equation.
Substrate purity = {(A) area} / {(A) (A) (U) area total}
まず、多価グリシジルエーテル化合物をカラムクロマトグラフィー(関東化学株式会社製、シリカゲル60(球状))により単離、1H-NMR分析により同定した後に、UHPLC分析(日本Waters社製、ACQUITY UPLC(TM)BEH C18、溶出溶媒:アセトニトリル及び水、グラジエント法)し、多価グリシジルエーテル化合物の検出時間を決定する。次に、反応液をUHPLC分析(日本Waters社製、ACQUITY UPLC(TM)BEH C18、溶出溶媒:アセトニトリル及び水、グラジエント法)し、多価グリシジルエーテル化合物を基準として以下(ア)~(ウ)の3領域の面積をそれぞれ積算して求める。
(ア)多価グリシジルエーテル化合物の検出時間より短時間の領域:目的物のグリシジル基加水分解体
(イ)多価グリシジルエーテル化合物のピーク
(ウ)多価グリシジルエーテル化合物の検出時間より長時間の領域:反応中間体と推定されるアリルエーテル体
多価グリシジルエーテル化合物の純度は以下の式より算出する。
多価グリシジルエーテル化合物の純度={(イ)の面積}/{(ア)(イ)(ウ)の面積合計}
・多価グリシジルエーテル化合物の純収率
以下の式より算出する。
純収率=多価グリシジルエーテル化合物の粗収率×多価グリシジルエーテル化合物の純度 -Purity of polyvalent glycidyl ether compound First, the polyvalent glycidyl ether compound was isolated by column chromatography (silica gel 60 (spherical) manufactured by Kanto Chemical Co., Inc.) and identified by 1 H-NMR analysis, followed by UHPLC analysis (Japan Waters, ACQUITY UPLC (TM) BEH C18, elution solvent: acetonitrile and water, gradient method), and the detection time of the polyvalent glycidyl ether compound is determined. Next, the reaction solution was subjected to UHPLC analysis (manufactured by Waters Japan, ACQUITY UPLC (TM) BEH C18, elution solvent: acetonitrile and water, gradient method), and the following (a) to (c) based on the polyvalent glycidyl ether compound. Are obtained by integrating the areas of the three regions.
(A) Area shorter than the detection time of the polyvalent glycidyl ether compound: glycidyl group hydrolyzate of the target product (a) Peak of the polyvalent glycidyl ether compound (U) Longer than the detection time of the polyvalent glycidyl ether compound Region: The purity of the allyl ether polyvalent glycidyl ether compound estimated as a reaction intermediate is calculated from the following formula.
Purity of polyvalent glycidyl ether compound = {area of (A)} / {total area of (A) (I) (U)}
-Net yield of polyvalent glycidyl ether compound Calculated from the following formula.
Pure yield = crude yield of polyvalent glycidyl ether compound x purity of polyvalent glycidyl ether compound
合成例1(ペンタエリスリトールテトラアリルエーテルの合成)
2.0リットル三口丸底フラスコにネオアリル(登録商標)P-30M(ペンタエリスリトールトリアリルエーテル、ダイソー株式会社製)400.0g(1.57mol)を入れ、反応装置系内を窒素ガスで置換した。水酸化ナトリウム水溶液(50質量%、純正化学株式会社製)を300g(3.8mol)を加え、80℃まで加熱し、反応系を約80℃で1時間攪拌した後に、反応系を約40℃まで冷却した。反応系内を約40℃に保ちながら、テトラブチルアンモニウムブロマイド(東京化成工業株式会社製)55.6g(0.2mol)、塩化アリル(和光純薬工業株式会社製)366g(4.0mol)を加え、20時間攪拌した。反応終了後、酢酸エチル200gと水100gを加え分液処理し、有機層を純水50mL/回で中性になるまで洗浄した。得られた有機層の有機溶媒(酢酸エチル)を留去し、純度96%の基質A(ペンタエリスリトールテトラアリルエーテル)487.8gを得た。 [Substrate synthesis]
Synthesis Example 1 (Synthesis of pentaerythritol tetraallyl ether)
A 2.0-liter three-necked round bottom flask was charged with 400.0 g (1.57 mol) of Neoallyl (registered trademark) P-30M (pentaerythritol triallyl ether, manufactured by Daiso Corporation), and the inside of the reactor system was replaced with nitrogen gas. . 300 g (3.8 mol) of sodium hydroxide aqueous solution (50% by mass, manufactured by Junsei Chemical Co., Ltd.) was added and heated to 80 ° C., and the reaction system was stirred at about 80 ° C. for 1 hour, and then the reaction system was about 40 ° C. Until cooled. While maintaining the reaction system at about 40 ° C., 55.6 g (0.2 mol) of tetrabutylammonium bromide (manufactured by Tokyo Chemical Industry Co., Ltd.) and 366 g (4.0 mol) of allyl chloride (manufactured by Wako Pure Chemical Industries, Ltd.) The mixture was further stirred for 20 hours. After completion of the reaction, 200 g of ethyl acetate and 100 g of water were added for liquid separation, and the organic layer was washed with pure water at 50 mL / time until neutral. The organic solvent (ethyl acetate) in the obtained organic layer was distilled off to obtain 487.8 g of substrate A (pentaerythritol tetraallyl ether) having a purity of 96%.
2.0リットル三口丸底フラスコにネオアリル(登録商標)T-20(トリメチロールプロパンジアリルエーテル、ダイソー株式会社製)2000.0g(9.4mol)を入れ、反応装置系内を窒素ガスで置換した。水酸化ナトリウム水溶液(50質量%)4500g(56.3mol)を加え、反応系を約80℃で1時間攪拌した後に、約40℃まで冷却した。反応系内を約40℃に保ちながら、テトラブチルアンモニウムブロマイド200.0g(0.6mol)、塩化アリル2400g(31.4mol)を入れ20時間攪拌した。反応終了後、酢酸エチル2000gと水1000gを加え分液処理し、有機層を純水500mL/回で中性になるまで洗浄した。得られた有機層の有機溶媒(酢酸エチル)を留去し、ガスクロマトグラフィーにより測定した純度94%の基質B(トリメチロールプロパントリアリルエーテル)2444.3gを得た。 Synthesis Example 2 (Synthesis of trimethylolpropane triallyl ether)
In a 2.0-liter three-necked round bottom flask, 2000.0 g (9.4 mol) of Neoallyl (registered trademark) T-20 (trimethylolpropane diallyl ether, manufactured by Daiso Corporation) was placed, and the inside of the reactor system was replaced with nitrogen gas. . Sodium hydroxide aqueous solution (50 mass%) 4500g (56.3mol) was added, and the reaction system was stirred at about 80 ° C for 1 hour, and then cooled to about 40 ° C. While maintaining the reaction system at about 40 ° C., 200.0 g (0.6 mol) of tetrabutylammonium bromide and 2400 g (31.4 mol) of allyl chloride were added and stirred for 20 hours. After completion of the reaction, 2000 g of ethyl acetate and 1000 g of water were added to carry out a liquid separation treatment, and the organic layer was washed with pure water at 500 mL / time until neutral. The organic solvent (ethyl acetate) in the obtained organic layer was distilled off to obtain 2444.3 g of substrate B (trimethylolpropane triallyl ether) having a purity of 94% as measured by gas chromatography.
2.0リットル三口丸底フラスコにグリセリン(東京化成工業株式会社製)184.2g(2.0mol)を入れ、反応装置系内を窒素ガスで置換した。水酸化ナトリウム水溶液(50質量%)711g(9.0mol)を加え、反応系を約80℃で1時間攪拌した後に、約40℃まで冷却した。反応系内を約40℃に保ちながら、テトラブチルアンモニウムブロマイド70.8g(0.26mol)、塩化アリル659g(7.2mol)を入れ16時間攪拌した。反応終了後、酢酸エチル400gと水300gを加え分液処理し、有機層を純水200mL/回で中性になるまで洗浄した。得られた有機層の有機溶媒(酢酸エチル)を留去し、ガスクロマトグラフィーにより測定した純度97%の基質C(グリセリントリアリルエーテル)198.2gを得た。 Synthesis Example 3 (Synthesis of glyceryl triallyl ether)
184.2 g (2.0 mol) of glycerin (manufactured by Tokyo Chemical Industry Co., Ltd.) was placed in a 2.0 liter three-necked round bottom flask, and the inside of the reactor system was replaced with nitrogen gas. 711 g (9.0 mol) of an aqueous sodium hydroxide solution (50% by mass) was added, and the reaction system was stirred at about 80 ° C. for 1 hour, and then cooled to about 40 ° C. While maintaining the reaction system at about 40 ° C., 70.8 g (0.26 mol) of tetrabutylammonium bromide and 659 g (7.2 mol) of allyl chloride were added and stirred for 16 hours. After completion of the reaction, 400 g of ethyl acetate and 300 g of water were added for liquid separation treatment, and the organic layer was washed with pure water at 200 mL / time until neutral. The organic solvent (ethyl acetate) in the obtained organic layer was distilled off to obtain 198.2 g of substrate C (glycerin triallyl ether) having a purity of 97% as measured by gas chromatography.
2.0リットル三口丸底フラスコにジペンタエリスリトール(東京化成工業株式会社製)254.3g(1.0mol)を入れ、反応装置系内を窒素ガスで置換した。水酸化ナトリウム水溶液(50質量%)632g(8.0mol)を加え、反応系を約80℃で1時間攪拌した後に、約40℃まで冷却した。反応系内を約40℃に保ちながら、テトラブチルアンモニウムブロマイド70.8g(0.26mol)、塩化アリル659g(7.2mol)を入れ62時間攪拌した。反応終了後、酢酸エチル400gと水300gを加え分液処理し、有機層を純水200mL/回で中性になるまで洗浄した。得られた有機層の有機溶媒(酢酸エチル)を留去し、ガスクロマトグラフィーにより測定した純度92%の基質D(ジペンタエリスリトールヘキサアリルエーテル)396.7gを得た。 Synthesis Example 4 (Synthesis of dipentaerythritol hexaallyl ether)
Dipentaerythritol (manufactured by Tokyo Chemical Industry Co., Ltd.) 254.3 g (1.0 mol) was placed in a 2.0 liter three-necked round bottom flask, and the inside of the reactor system was replaced with nitrogen gas. Sodium hydroxide aqueous solution (50 mass%) 632g (8.0mol) was added, and the reaction system was stirred at about 80 ° C for 1 hour, and then cooled to about 40 ° C. While maintaining the reaction system at about 40 ° C., 70.8 g (0.26 mol) of tetrabutylammonium bromide and 659 g (7.2 mol) of allyl chloride were added and stirred for 62 hours. After completion of the reaction, 400 g of ethyl acetate and 300 g of water were added for liquid separation treatment, and the organic layer was washed with pure water at 200 mL / time until neutral. The organic solvent (ethyl acetate) in the obtained organic layer was distilled off to obtain 396.7 g of substrate D (dipentaerythritol hexaallyl ether) having a purity of 92% as measured by gas chromatography.
実施例1(ペンタエリスリトールテトラグリシジルエーテルの合成)
合成例1で得られたペンタエリスリトールテトラアリルエーテル200g(0.67mol)、アセトニトリル(純正化学株式会社製)220g(5.36mol)、メタノール(純正化学株式会社製)100g(3.12mol)を2リットル3つ口フラスコに仕込んだ。この段階での系内のアセトニトリル濃度は8.84mol/Lであった。続いて50質量%水酸化カリウム水溶液(和光純薬工業株式会社製)を少量加え、反応系内のpHを約10.5に調整した後、内温35℃で45質量%過酸化水素水溶液(日本パーオキサイド株式会社製)160g(2.12mol)を、内温が45℃を超えないように18時間かけて滴下した。なお、過酸化水素水溶液を加えるとpHが下がるので、pHが10.5に維持されるように50質量%水酸化カリウム水溶液も別途滴下した。反応液をUHPLC分析し、滴下開始30時間後、加水分解率が5%の時点で反応液に亜硫酸ナトリウム2.11g(和光純薬工業株式会社製)とトルエン1000gを加え反応を停止し、室温で30分間攪拌し、水層(亜硫酸ナトリウム、副生アセトアミド等を含む)と有機層(最終目的物、反応中間体を含む)を分離した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は3.78mol/Lであった。その後有機層を純水150gで2回洗浄して残存する亜硫酸ナトリウム、副生アセトアミド等の不純物を除去し、溶媒を留去することにより、純度89%、収量190.14g、粗収率78.2%で反応生成物(目的物)が得られた。 [Synthesis of polyvalent glycidyl ether compound]
Example 1 (Synthesis of pentaerythritol tetraglycidyl ether)
Two 200 g (0.67 mol) of pentaerythritol tetraallyl ether obtained in Synthesis Example 1, 220 g (5.36 mol) of acetonitrile (manufactured by Junsei Chemical Co., Ltd.), and 100 g (3.12 mol) of methanol (manufactured by Junsei Chemical Co., Ltd.) A liter three-necked flask was charged. The acetonitrile concentration in the system at this stage was 8.84 mol / L. Subsequently, after adding a small amount of 50% by mass potassium hydroxide aqueous solution (manufactured by Wako Pure Chemical Industries, Ltd.) to adjust the pH in the reaction system to about 10.5, a 45% by mass hydrogen peroxide aqueous solution (with an internal temperature of 35 ° C.) 160 g (2.12 mol) manufactured by Nippon Peroxide Co., Ltd. was added dropwise over 18 hours so that the internal temperature did not exceed 45 ° C. In addition, since pH fell when hydrogen peroxide aqueous solution was added, 50 mass% potassium hydroxide aqueous solution was also dripped separately so that pH might be maintained at 10.5. The reaction solution was subjected to UHPLC analysis, 30 hours after the start of dropping, when the hydrolysis rate was 5%, 2.11 g of sodium sulfite (manufactured by Wako Pure Chemical Industries, Ltd.) and 1000 g of toluene were added to the reaction solution to stop the reaction, The mixture was stirred for 30 minutes, and the aqueous layer (including sodium sulfite and by-product acetamide) and the organic layer (including the final target product and reaction intermediate) were separated. The acetonitrile concentration in the system at the end of the reaction, calculated as 100% of the consumed acetonitrile reacted with the substrate, was 3.78 mol / L. Thereafter, the organic layer was washed twice with 150 g of pure water to remove residual impurities such as sodium sulfite and by-product acetamide, and the solvent was distilled off to obtain a purity of 89%, a yield of 190.14 g, and a crude yield of 78. A reaction product (target product) was obtained at 2%.
合成例2で得られたトリメチロールプロパントリアリルエーテル75g(0.295mol)、アセトニトリル75g(1.83mol)、メタノール72.5g(2.26mol)を2リットル3つ口フラスコに仕込んだ。この段階での系内のアセトニトリル濃度は6.99mol/Lであった。続いて50質量%水酸化カリウム水溶液を加え、反応液のpHを約10.5に調整した後、内温35℃で45質量%過酸化水素水溶液116g(1.54mol)を、内温が45℃を超えないように30時間かけて滴下した。なお、過酸化水素水溶液を加えるとpHが下がるので、pHが10.5に維持されるように50質量%水酸化カリウム水溶液も別途滴下した。反応液をUHPLC分析し、滴下開始48時間後、加水分解率が5%の時点で反応液に亜硫酸ナトリウム3.06gとトルエン200gを加え反応を停止し、室温で30分間攪拌し、水層(亜硫酸ナトリウム、副生アセトアミド等を含む)と有機層(最終目的物、反応中間体を含む)を分離した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は2.72mol/Lであった。その後有機層を純水80gで2回洗浄して残存する亜硫酸ナトリウム、副生アセトアミド等の不純物を除去した後、溶媒を留去することにより、純度89%、収量66.76g、粗収率72.8%で反応生成物(目的物)が得られた。 Example 2 (Synthesis of trimethylolpropane triglycidyl ether)
75 g (0.295 mol) of trimethylolpropane triallyl ether obtained in Synthesis Example 2, 75 g (1.83 mol) of acetonitrile, and 72.5 g (2.26 mol) of methanol were charged into a 2-liter three-necked flask. The acetonitrile concentration in the system at this stage was 6.99 mol / L. Subsequently, after adding 50% by mass potassium hydroxide aqueous solution and adjusting the pH of the reaction solution to about 10.5, an inner temperature of 35 ° C. was added with 45 g% hydrogen peroxide aqueous solution 116 g (1.54 mol), and the internal temperature was 45%. It was added dropwise over 30 hours so as not to exceed ° C. In addition, since pH fell when hydrogen peroxide aqueous solution was added, 50 mass% potassium hydroxide aqueous solution was also dripped separately so that pH might be maintained at 10.5. The reaction solution was subjected to UHPLC analysis. After 48 hours from the start of dropping, when the hydrolysis rate was 5%, 3.06 g of sodium sulfite and 200 g of toluene were added to the reaction solution to stop the reaction, followed by stirring at room temperature for 30 minutes. Sodium sulfite, by-product acetamide and the like) and the organic layer (including final product and reaction intermediate) were separated. The acetonitrile concentration in the system at the end of the reaction, calculated as 100% of the consumed acetonitrile reacted with the substrate, was 2.72 mol / L. Thereafter, the organic layer was washed twice with 80 g of pure water to remove residual impurities such as sodium sulfite and by-product acetamide, and then the solvent was distilled off to obtain a purity of 89%, a yield of 66.76 g, and a crude yield of 72. The reaction product (target product) was obtained at .8%.
合成例3で得られたグリセリントリアリルエーテル106g(0.50mol)、アセトニトリル380g(3.1mol)、メタノール70.5g(2.2mol)を1リットル3つ口フラスコに仕込んだ。この段階での系内のアセトニトリル濃度は4.59mol/Lであった。続いて50質量%水酸化カリウム水溶液を加え、反応液のpHを約10.5に調整した後、内温35℃で45質量%過酸化水素水溶液170g(2.0mol)を、内温が45℃を超えないように8時間かけて滴下した。なお、過酸化水素水溶液を加えるとpHが下がるので、pHが10.5に維持されるように50質量%水酸化カリウム水溶液も別途滴下した。反応液をUHPLC分析し、滴下開始10時間後、加水分解率が5%の時点で反応液に亜硫酸ナトリウム3.2gとトルエン400gを加え反応を停止し、室温で30分間攪拌し、水層(亜硫酸ナトリウム、副生アセトアミド等を含む)と有機層(最終目的物、反応中間体を含む)を分離した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は1.97mol/Lであった。その後有機層を純水120gで2回洗浄して残存する亜硫酸ナトリウム、副生アセトアミド等の不純物を除去した後、溶媒を留去することにより、純度92%、収量108g、粗収率82.9%で反応生成物(目的物)が得られた。 Example 3 (Synthesis of glycerin triglycidyl ether)
106 g (0.50 mol) of glycerin triallyl ether obtained in Synthesis Example 3, 380 g (3.1 mol) of acetonitrile, and 70.5 g (2.2 mol) of methanol were charged into a 1-liter three-necked flask. The acetonitrile concentration in the system at this stage was 4.59 mol / L. Subsequently, after adding 50% by mass potassium hydroxide aqueous solution and adjusting the pH of the reaction solution to about 10.5, 170 g (2.0 mol) of 45% by mass hydrogen peroxide aqueous solution at an internal temperature of 35 ° C. The solution was added dropwise over 8 hours so as not to exceed ° C. In addition, since pH fell when hydrogen peroxide aqueous solution was added, 50 mass% potassium hydroxide aqueous solution was also dripped separately so that pH might be maintained at 10.5. The reaction solution was analyzed by UHPLC, and 10 hours after the start of dropping, when the hydrolysis rate was 5%, 3.2 g of sodium sulfite and 400 g of toluene were added to the reaction solution to stop the reaction, followed by stirring at room temperature for 30 minutes. Sodium sulfite, by-product acetamide and the like) and the organic layer (including final product and reaction intermediate) were separated. The acetonitrile concentration in the system at the end of the reaction, which was calculated on the assumption that consumed acetonitrile was 100% reacted with the substrate, was 1.97 mol / L. Thereafter, the organic layer was washed twice with 120 g of pure water to remove residual impurities such as sodium sulfite and by-product acetamide, and then the solvent was distilled off to obtain a purity of 92%, a yield of 108 g, and a crude yield of 82.9. %, The reaction product (target product) was obtained.
合成例4で得られたジペンタエリスリトールヘキサアリルエーテル102g(0.20mol)、アセトニトリル294g(2.4mol)、メタノール32.1g(1.0mol)を1リットル3つ口フラスコに仕込んだ。この段階での系内のアセトニトリル濃度は4.67mol/Lであった。続いて50質量%水酸化カリウム水溶液を加え、反応液のpHを約10.5に調整した後、内温35℃で45質量%過酸化水素水溶液135g(1.6mol)を、内温が45℃を超えないように48時間かけて滴下した。なお、過酸化水素水溶液を加えるとpHが下がるので、pHが10.5に維持されるように50質量%水酸化カリウム水溶液も別途滴下した。反応液をUHPLC分析し、滴下開始50時間後、加水分解率が5%の時点で反応液に亜硫酸ナトリウム2.5gとトルエン400gを加え反応を停止し、室温で30分間攪拌し、水層(亜硫酸ナトリウム、副生アセトアミド等を含む)と有機層(最終目的物、反応中間体を含む)を分離した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は2.00mol/Lであった。その後有機層を純水120gで2回洗浄して残存する亜硫酸ナトリウム、副生アセトアミド等の不純物を除去した後、溶媒を留去することにより、純度88%、収量86.9g、粗収率71.8%で反応生成物(目的物)が得られた。 Example 4 (Synthesis of dipentaerythritol hexaglycidyl ether)
102 g (0.20 mol) of dipentaerythritol hexaallyl ether obtained in Synthesis Example 4, 294 g (2.4 mol) of acetonitrile, and 32.1 g (1.0 mol) of methanol were charged into a 1-liter three-necked flask. The acetonitrile concentration in the system at this stage was 4.67 mol / L. Subsequently, after adding 50% by mass potassium hydroxide aqueous solution and adjusting the pH of the reaction solution to about 10.5, 135 g (1.6 mol) of 45% by mass hydrogen peroxide aqueous solution at an internal temperature of 35 ° C. The solution was added dropwise over 48 hours so as not to exceed ℃. In addition, since pH fell when hydrogen peroxide aqueous solution was added, 50 mass% potassium hydroxide aqueous solution was also dripped separately so that pH might be maintained at 10.5. The reaction solution was subjected to UHPLC analysis. After 50 hours from the start of dropping, when the hydrolysis rate was 5%, 2.5 g of sodium sulfite and 400 g of toluene were added to the reaction solution to stop the reaction, followed by stirring at room temperature for 30 minutes, Sodium sulfite, by-product acetamide and the like) and the organic layer (including final product and reaction intermediate) were separated. The acetonitrile concentration in the system at the end of the reaction, calculated as 100% of the consumed acetonitrile reacted with the substrate, was 2.00 mol / L. Thereafter, the organic layer was washed twice with 120 g of pure water to remove residual impurities such as sodium sulfite and by-product acetamide, and then the solvent was distilled off to obtain a purity of 88%, a yield of 86.9 g, and a crude yield of 71. The reaction product (target product) was obtained at .8%.
合成例1で得られたペンタエリスリトールテトラアリルエーテル200g(0.67mol)、アセトニトリル220g(5.36mol)、メタノール100g(3.12mol)を2リットル3つ口フラスコに仕込んだ。この段階での系内のアセトニトリル濃度は8.86mol/Lであった。続いて50質量%水酸化カリウム水溶液を少量加え、反応系内のpHを約10.5に調整した後、内温35℃で45質量%過酸化水素水溶液160g(2.12mol)を、内温が45℃を超えないように60時間かけて滴下した。なお、過酸化水素を加えるとpHが下がるので、pHが10.5に維持されるように50質量%水酸化カリウム水溶液も別途滴下した。反応液をUHPLC分析し、滴下開始68時間後、加水分解率が14%の時点で、亜硫酸ナトリウム16.3gとトルエン800gを加え、30分間攪拌し、反応を停止した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は4.39mol/Lであった。純水150gで2回洗浄した後、溶媒を留去して得られた反応生成物は純度72%、収量93.0g、粗収率38.2%であった。 Comparative Example 1 (Synthesis of pentaerythritol tetraglycidyl ether)
200 g (0.67 mol) of pentaerythritol tetraallyl ether obtained in Synthesis Example 1, 220 g (5.36 mol) of acetonitrile, and 100 g (3.12 mol) of methanol were charged into a 2-liter three-necked flask. The acetonitrile concentration in the system at this stage was 8.86 mol / L. Subsequently, a small amount of 50% by mass potassium hydroxide aqueous solution was added to adjust the pH in the reaction system to about 10.5, and then 160 g (2.12 mol) of 45% by mass hydrogen peroxide aqueous solution was added at an internal temperature of 35 ° C. Was added dropwise over 60 hours so as not to exceed 45 ° C. In addition, since pH fell when hydrogen peroxide was added, 50 mass% potassium hydroxide aqueous solution was also dripped separately so that pH might be maintained at 10.5. The reaction solution was subjected to UHPLC analysis, and 68 hours after the start of dropping, when the hydrolysis rate was 14%, 16.3 g of sodium sulfite and 800 g of toluene were added and stirred for 30 minutes to stop the reaction. The acetonitrile concentration in the system at the end of the reaction, calculated as 100% of the consumed acetonitrile reacted with the substrate, was 4.39 mol / L. After washing twice with 150 g of pure water, the reaction product obtained by distilling off the solvent had a purity of 72%, a yield of 93.0 g, and a crude yield of 38.2%.
合成例2で得られたトリメチロールプロパントリアリルエーテル75g(0.295mol)、アセトニトリル75g(1.83mol)、メタノール73g(2.26mol)を1リットル3つ口フラスコに仕込んだ。この段階での系内のアセトニトリル濃度は6.96mol/Lであった。続いて50質量%水酸化カリウム水溶液を加え、反応系内のpHを約10.5に調整した後、内温35℃で45質量%過酸化水素水溶液116g(1.54mol)を、内温が45℃を超えないように66時間かけて滴下した。なお、過酸化水素を加えるとpHが下がるので、pHが10.5に維持されるように50質量%水酸化カリウム水溶液も別途滴下した。反応液をUHPLC分析し、滴下開始72時間後、加水分解率が22%の時点でトルエン50gと亜硫酸ナトリウム1gを加え、30分間攪拌して反応を停止した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は3.13mol/Lであった。純水20gで2回洗浄し、溶媒を留去したところ反応生成物が、純度69%、収量29.4g、粗収率32.1%で得られた。 Comparative Example 2 (Synthesis of trimethylolpropane triglycidyl ether)
75 g (0.295 mol) of trimethylolpropane triallyl ether obtained in Synthesis Example 2, 75 g (1.83 mol) of acetonitrile, and 73 g (2.26 mol) of methanol were charged into a 1-liter three-necked flask. The acetonitrile concentration in the system at this stage was 6.96 mol / L. Subsequently, 50% by mass aqueous potassium hydroxide solution was added to adjust the pH in the reaction system to about 10.5. Then, 116 g (1.54 mol) of 45% by mass hydrogen peroxide aqueous solution at an internal temperature of 35 ° C. The solution was added dropwise over 66 hours so as not to exceed 45 ° C. In addition, since pH fell when hydrogen peroxide was added, 50 mass% potassium hydroxide aqueous solution was also dripped separately so that pH might be maintained at 10.5. The reaction solution was subjected to UHPLC analysis. 72 hours after the start of dropping, 50 g of toluene and 1 g of sodium sulfite were added when the hydrolysis rate was 22%, and the reaction was stopped by stirring for 30 minutes. The acetonitrile concentration in the system at the end of the reaction, calculated as 100% of the consumed acetonitrile reacted with the substrate, was 3.13 mol / L. After washing twice with 20 g of pure water and distilling off the solvent, the reaction product was obtained in a purity of 69%, a yield of 29.4 g, and a crude yield of 32.1%.
比較例1と同じ手順及び仕込比で反応を開始した。過酸化水素滴下開始20時間後に反応液をUHPLC分析し、加水分解率が0.5%であることを確認した。亜硫酸ナトリウム16.3gとトルエン800gを加え、30分間攪拌し、反応を停止した。消費されたアセトニトリルが基質と100%反応したとして算出した反応終了時の系内のアセトニトリル濃度は5.83mol/Lであった。純水150gで2回洗浄した後、溶媒を留去して得られた反応生成物は純度30%、収量227g、粗収率93.3%であった。 Comparative Example 3 (Synthesis of pentaerythritol tetraglycidyl ether)
The reaction was started with the same procedure and charging ratio as in Comparative Example 1. The reaction solution was subjected to UHPLC analysis 20 hours after the start of dropwise addition of hydrogen peroxide, and it was confirmed that the hydrolysis rate was 0.5%. 16.3 g of sodium sulfite and 800 g of toluene were added and stirred for 30 minutes to stop the reaction. The acetonitrile concentration in the system at the end of the reaction, which was calculated on the assumption that consumed acetonitrile was 100% reacted with the substrate, was 5.83 mol / L. After washing twice with 150 g of pure water, the reaction product obtained by distilling off the solvent was 30% pure, 227 g in yield, and 93.3% in crude yield.
Claims (5)
- 過酸化水素水溶液を酸化剤として用いて、アリル基を3つ以上有する多価アリル化合物のアリル基の炭素-炭素二重結合をエポキシ化する多価グリシジル化合物の製造方法において、エポキシ化反応を1段階で行い、生成するグリシジル基の加水分解体の比率(加水分解率)が0.5%~10%の範囲内にあるときに反応を停止することを特徴とする多価グリシジル化合物の製造方法。 In the method for producing a polyvalent glycidyl compound in which a carbon-carbon double bond of an allyl group of a polyvalent allyl compound having three or more allyl groups is epoxidized using an aqueous hydrogen peroxide solution as an oxidizing agent, A method for producing a polyvalent glycidyl compound, characterized in that the reaction is stopped when the ratio (hydrolysis rate) of the glycidyl group hydrolyzate produced is in the range of 0.5% to 10%. .
- 前記エポキシ化反応をアセトニトリル及びアルコールの存在下で行なう請求項1に記載の多価グリシジル化合物の製造方法。 The method for producing a polyvalent glycidyl compound according to claim 1, wherein the epoxidation reaction is carried out in the presence of acetonitrile and alcohol.
- 前記アルコールが炭素数1~4のアルコールである請求項2に記載の多価グリシジル化合物の製造方法。 The method for producing a polyvalent glycidyl compound according to claim 2, wherein the alcohol is an alcohol having 1 to 4 carbon atoms.
- 前記アリル基が酸素原子に結合してアリルエーテル基を形成しているか、又はアミノ基に結合してアリルアミノ基を形成している請求項1~3のいずれかに記載の多価グリシジル化合物の製造方法。 The production of a polyvalent glycidyl compound according to any one of claims 1 to 3, wherein the allyl group is bonded to an oxygen atom to form an allyl ether group, or is bonded to an amino group to form an allylamino group. Method.
- 前記多価アリル化合物がトリメチロールプロパントリアリルエーテル、グリセリントリアリルエーテル、ペンタエリスリトールトリアリルエーテル、ペンタエリスリトールテトラアリルエーテル、ジトリメチロールプロパントリアリルエーテル、ジトリメチロールプロパンテトラアリルエーテル、ジグリセリントリアリルエーテル、ジグリセリンテトラアリルエーテル、エリスリトールトリアリルエーテル、エリスリトールテトラアリルエーテル、キシリトールトリアリルエーテル、キシリトールテトラアリルエーテル、キシリトールペンタアリルエーテル、ジペンタエリスリトールトリアリルエーテル、ジペンタエリスリトールテトラアリルエーテル、ジペンタエリスリトールペンタアリルエーテル、ジペンタエリスリトールヘキサアリルエーテル、ソルビトールトリアリルエーテル、ソルビトールテトラアリルエーテル、ソルビトールペンタアリルエーテル、ソルビトールヘキサアリルエーテル、イノシトールトリアリルエーテル、イノシトールテトラアリルエーテル、イノシトールペンタアリルエーテル、イノシトールヘキサアリルエーテル、フェノールノボラック型ポリアリルエーテル、クレゾール型ポリアリルエーテル、ナフタレン含有ノボラック型ポリアリルエーテル、テトラアリルジアミノジフェニルメタン、トリアリルイソシアヌレート、ジアリルアミノフェノールアリルエーテルからなる群のいずれかである請求項1~4のいずれかに記載の多価グリシジル化合物の製造方法。 The polyvalent allyl compound is trimethylolpropane triallyl ether, glycerin triallyl ether, pentaerythritol triallyl ether, pentaerythritol tetraallyl ether, ditrimethylolpropane triallyl ether, ditrimethylolpropane tetraallyl ether, diglyceryl triallyl ether, Diglycerin tetraallyl ether, erythritol triallyl ether, erythritol tetraallyl ether, xylitol triallyl ether, xylitol tetraallyl ether, xylitol pentaallyl ether, dipentaerythritol triallyl ether, dipentaerythritol tetraallyl ether, dipentaerythritol pentaallyl Ether, dipentaerythritol hexaary Ether, sorbitol triallyl ether, sorbitol tetraallyl ether, sorbitol pentaallyl ether, sorbitol hexaallyl ether, inositol triallyl ether, inositol tetraallyl ether, inositol pentaallyl ether, inositol hexaallyl ether, phenol novolac type polyallyl ether, cresol 5. The polyvalent glycidyl according to any one of claims 1 to 4, which is any one of the group consisting of a polyallyl ether, a naphthalene-containing novolak polyallyl ether, tetraallyldiaminodiphenylmethane, triallyl isocyanurate, and diallylaminophenol allyl ether. Compound production method.
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