WO2010095604A1 - 脂環式テトラカルボン酸の製造方法 - Google Patents
脂環式テトラカルボン酸の製造方法 Download PDFInfo
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- WO2010095604A1 WO2010095604A1 PCT/JP2010/052231 JP2010052231W WO2010095604A1 WO 2010095604 A1 WO2010095604 A1 WO 2010095604A1 JP 2010052231 W JP2010052231 W JP 2010052231W WO 2010095604 A1 WO2010095604 A1 WO 2010095604A1
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- KVHGVQIXSZOTQM-FCAWWVIHSA-N C(C1[C@H]2C3[C@H]4C=CC2C4)C3C2C1C1C=CC2C1 Chemical compound C(C1[C@H]2C3[C@H]4C=CC2C4)C3C2C1C1C=CC2C1 KVHGVQIXSZOTQM-FCAWWVIHSA-N 0.000 description 1
- XBFJAVXCNXDMBH-UHFFFAOYSA-N C(CC1C2)C2C2C1C1C=CC2C1 Chemical compound C(CC1C2)C2C2C1C1C=CC2C1 XBFJAVXCNXDMBH-UHFFFAOYSA-N 0.000 description 1
- VSHDEZHNJCSDFY-ZJGSIPCCSA-N C(CC1C2)[C@@H]2C2C1C1CC2CC1 Chemical compound C(CC1C2)[C@@H]2C2C1C1CC2CC1 VSHDEZHNJCSDFY-ZJGSIPCCSA-N 0.000 description 1
- VSHDEZHNJCSDFY-GNDAMOIASA-N C(CC1C2)[C@@H]2C2[C@@H]1C1CC2CC1 Chemical compound C(CC1C2)[C@@H]2C2[C@@H]1C1CC2CC1 VSHDEZHNJCSDFY-GNDAMOIASA-N 0.000 description 1
- 0 C*(C1)C1I*NI Chemical compound C*(C1)C1I*NI 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
- C07C51/275—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids of hydrocarbyl groups
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C61/00—Compounds having carboxyl groups bound to carbon atoms of rings other than six-membered aromatic rings
- C07C61/12—Saturated polycyclic compounds
- C07C61/125—Saturated polycyclic compounds having a carboxyl group bound to a condensed ring system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2602/00—Systems containing two condensed rings
- C07C2602/02—Systems containing two condensed rings the rings having only two atoms in common
- C07C2602/14—All rings being cycloaliphatic
- C07C2602/22—All rings being cycloaliphatic the ring system containing eight carbon atoms, e.g. pentalene
Definitions
- the present invention relates to bicyclo [3.3.0] octane-2-exo-4-exo-6-endo-8-endo-tetracarboxylic acid useful as a raw material for alicyclic polyimides used in the field of electronic materials and the like.
- the present invention relates to a method for producing an alicyclic tetracarboxylic acid.
- polyimide resins are widely used as electronic materials such as protective materials, insulating materials, and color filters in liquid crystal display elements and semiconductors because of their high mechanical strength, heat resistance, insulation, and solvent resistance. Yes.
- an optical communication material such as an optical waveguide material is also expected.
- the wholly aromatic polyimide resin is colored with a deep amber color, a problem arises in optical material applications that require high transparency. Further, since the wholly aromatic polyimide is insoluble in an organic solvent, it is actually necessary to obtain polyamic acid, which is a precursor thereof, by heat-dehydrating ring closure.
- One method to achieve transparency is to obtain a polyimide precursor by polycondensation reaction between an alicyclic tetracarboxylic dianhydride and an aromatic diamine, and then imidize the precursor to produce a polyimide. It is known that a highly transparent polyimide can be obtained with less chromatic coloring (see Patent Documents 1 and 2).
- Bicyclo [3.3.0] octane-2-exo-4-exo-6-endo-8-endo-tetracarboxylic acid-2: 4,6: 8-dianhydride represented by Polyimide using exo-4-exo-6-end-8-end-BODA) is excellent in printability and adhesion to the substrate, and does not peel off from the substrate during rubbing. It is known as a liquid crystal alignment treatment agent that can hardly damage the alignment film and can provide excellent voltage holding characteristics when driving a liquid crystal cell, and a liquid crystal alignment film using the same. (See Patent Document 3).
- Exo-endo-tetracyclo [4.4.1 2,5 . 1 7,10 . 0 1,6 ] dodeca-3,8-diene (hereinafter abbreviated as exo-endo-TCDE) has the structural formula [4]
- end-end-TCDE dodeca-3,8-diene
- endo-endo-BOTC bicyclo [3.3.0] octane-2-endo-4-endo-6-endo-8-endo-tetracarboxylic acid
- Non-Patent Document 2 an oxidation method using potassium permanganate is also known (see Non-Patent Document 2).
- potassium ions are mixed into the target product, exo-endo-BOTC, and the next step is performed.
- the dehydration ring-closing reaction with acetic anhydride it is mixed into the target product, exo-endo-BODA, and the structural formula [6]
- JP-A-60-188427 JP 58-208322 A Japanese Patent Laid-Open No. 11-249148
- the present invention relates to an exo-endo-BOTC which is a precursor of 2-exo-4-exo-6-endo-8-endo-BODA useful as a raw material for alicyclic polyimides used in the field of electronic materials and the like.
- This is a method for producing alicyclic tetracarboxylic acid, which uses low-cost raw materials to obtain high-purity target products that do not contain impurities such as isomers and metals, and has a high reaction source concentration and volumetric efficiency. It is an object of the present invention to provide a production method having high productivity.
- a compound represented by the following formula [A] is added to an aqueous solution of an oxidizing inorganic nitrogen oxide, and the compound represented by the following formula [B] is reacted by oxidizing the compound of the formula [A].
- a method for producing an alicyclic tetracarboxylic acid characterized in that
- the concentration of the aqueous solution of the oxidizing inorganic nitrogen oxide before addition of the compound represented by the formula [A] is 72 to 89% by mass, and the alicyclic tetracarboxylic acid according to (1) Production method, (3)
- the compound represented by the formula [A] is converted into an exo-endo-tetracyclo [4.4.1 2,5 . 1 7,10 . 0 1,6 ] dodeca-3,8-diene and the compound represented by the formula [B] is a bicyclo [3.3.0] octane-2-exo-4-y represented by the formula [2].
- Acid production method (7) The method for producing an alicyclic tetracarboxylic acid according to (6), wherein the organic solvent is a halogenated hydrocarbon, acetic acid, nitromethane, or a saturated hydrocarbon, (8) The method for producing an alicyclic tetracarboxylic acid according to (6) or (7), wherein the amount of the organic solvent present is 0.5 to 10 times by mass with respect to the compound represented by the formula [A]. . (9) The compound represented by the formula [A] is added to an aqueous solution of an oxidizing inorganic nitrogen oxide at 0 to 50 ° C. The alicyclic tetracarboxylic acid according to any one of (1) to (8) Acid production method.
- a process for producing an alicyclic tetracarboxylic acid (12) The method for producing an alicyclic tetracarboxylic acid according to (11), wherein the oxidizable inorganic nitrogen oxide to be added is 3 to 20 mol relative to 1 mol of the compound represented by the formula [A]. , (13) Further, the oxidizable inorganic nitrogen oxide to be added is at least one selected from the group consisting of nitric acid, nitrous acid, nitrogen dioxide, and nitrogen tetroxide. Production method of carboxylic acid. (14) The method for producing an alicyclic tetracarboxylic acid according to any one of (11) to (13), wherein an aqueous solution of an oxidizing inorganic nitrogen oxide to be further added is added at 20 to 60 ° C.
- exo-endo- which is a precursor of 2-exo-4-exo-6-endo-8-endo-BODA, used as an alicyclic polyimide raw material useful in the field of electronic materials and the like.
- inorganic nitrogen oxides which are inexpensive oxidants, alicyclic tetracarboxylic acids such as BOTC can be produced in high purity without impurities such as isomers of the target products and metals.
- a production method with high raw material concentration and high volumetric efficiency is provided.
- Cyclo [3.3.0] octane-tetracarboxylic acid which is a compound represented by the following formula [B] from 0 1,6 ] dodeca-3,8-diene (hereinafter also abbreviated as TCDE) (Hereinafter, also abbreviated as BOTC) is manufactured.
- TCDE which is a raw material in the present invention can be produced by various methods.
- TCDE can be produced by the following reaction scheme.
- exo-endo-TCDE norbornadiene (ND) and cyclopentadiene (CP) (or dicyclopentadiene (DCPD)
- ND norbornadiene
- CP cyclopentadiene
- DCPD dicyclopentadiene
- exo-exo-TCDE a slight mixture
- exo-endo-TCDE is preferred as the target product.
- this exo-endo-TCDE has a boiling point close to that of endo-endo-TCDE, it is practically impossible to purify to high purity by mixing with endo-endo-TCDE even after re-distillation. Have difficulty.
- the target product after the oxidation reaction can be easily purified as described later, and high-purity exo-endo-BOTC, etc.
- a mixture of exo-endo-TCDE and endo-endo-TCDE can be used.
- the mass ratio of exo-endo-TCDE / endo-endo-TCDE is preferably 60 to 99/40 to 1, particularly preferably 70 to 90/30 to 10.
- the oxidizable inorganic nitrogen oxide is an inorganic oxide having an oxidizing power, preferably nitric acid (HNO 3 ), nitrous acid (HNO 2 ), nitrogen dioxide (NO 2 ), and nitrogen tetroxide (N 2 O). 4 ) and at least one selected from the group consisting of.
- nitric acid is advantageous in terms of availability and operability.
- an aqueous solution whose solvent is water is preferable.
- the concentration of the inorganic nitrogen oxide in the aqueous solution of the oxidizing inorganic nitrogen oxide is preferably 70 to 89% by mass, particularly preferably 72 to 89% by mass, from the reaction rate and the selectivity of the target product.
- concentration of the aqueous solution of inorganic nitrogen oxides is low, the purity of the target product in the obtained crystal is low, and purification is difficult, which is not preferable.
- the amount of the inorganic nitrogen oxide used is preferably 5 to 40 moles per mole of the raw material TCDE, and more preferably 8 to 20 moles.
- the reaction of TCDE When the oxidation reaction of TCDE is carried out with oxidizing inorganic nitrogen oxides, there is usually an induction period at the beginning of the reaction, and NOx gas is generated with a rapid exotherm after a while from the start of stirring. In this case, the reaction can be allowed to proceed gently by the presence of the catalyst.
- the catalyst an aqueous nitric acid solution of nitrite, ammonium vanadate and / or vanadium (V) oxide can be preferably used.
- a metal such as vanadium is mixed in the product, and its removal and purification is practically difficult.
- the present inventors have found that the reaction can be started almost without the induction period and the reaction temperature can be controlled by using fuming nitric acid instead of using the above catalyst.
- Fuming nitric acid also contributes to the oxidation of TCDE and is effectively consumed.
- the fuming nitric acid a commercial product having a nitric acid concentration of preferably 90 to 99% by mass, particularly 90 to 98% by mass can be used.
- the amount of fuming nitric acid is preferably 1 to 5 moles, and more preferably 2 to 3 moles per mole of TCDE of the raw material.
- the oxidation reaction of TCDE in the present invention can proceed in the presence or absence of an organic solvent.
- an organic solvent it is possible to control a large exotherm in the TCDE oxidation reaction, to alleviate a rapid temperature rise, and to obtain a purified target product with high purity of crystals. Since it becomes easy, it is preferable.
- the use of an organic solvent is preferable because the outflow of generated NOx gas to the outside of the reaction system can be suppressed.
- the amount of the organic solvent used is preferably 0.5 to 10 times by mass, particularly 1 to 5 times by mass with respect to the raw material TCDE because the reaction progresses slowly if the amount of the solvent is excessive.
- the organic solvent is preferably a halogenated hydrocarbon having preferably 1 to 5 carbon atoms, a hydrocarbon having preferably 1 to 10 carbon atoms, acetic acid, nitromethane, dioxane, or the like.
- halogenated hydrocarbons are particularly preferred because the purity of the target product in the crystals precipitated at the end of the oxidation reaction can be increased.
- halogenated hydrocarbon examples include methylene chloride, chloroform, carbon tetrachloride, 1,2-dichloroethane, 1,1,2-trichloroethane, 1-chloropropane, 2-chloropropane, 1,2-dichloropropane, 1, Examples include 3-dichloropropane, 2,2-dichloropropane, 1-chlorobutane, 2-chlorobutane, 1,4-dichlorobutane, and the like. Of these, 1,2-dichloroethane or 1,2-dichloropropane is preferable.
- TCDE when TCDE is oxidized using an aqueous solution of oxidizing inorganic nitrogen oxide, a method of adding an aqueous solution of inorganic nitrogen oxide into a reaction vessel and adding raw material TCDE thereto (reverse addition method) ) is required.
- reverse addition method it has been found that stable execution is possible while controlling the increase in reaction temperature, and the purity of the target product in the crystals obtained by precipitation at the end of the reaction is remarkably high.
- the method of adding an aqueous solution of an oxidizing inorganic nitrogen oxide to the raw material TCDE (sequential addition method) is difficult to control the temperature by intense heat generation at any stage, as shown in a later comparative example.
- the purity of the target product in the crystals obtained by the forward dropping method was found to be low and its purification was extremely difficult.
- the raw material TCDE when the raw material TCDE is added to the aqueous solution of inorganic nitrogen oxide, for example, an oxidizing inorganic nitrogen oxide aqueous solution and fuming nitric acid are charged into the reaction vessel, and a small amount of raw material TCDE is added to the NOx gas. It was found that the exothermic reaction can be controlled more easily by dropping the remaining most of the raw material TCDE in sequence while adjusting the addition rate after the generation of the above. Further, the heat generation during the addition of the raw material TCDE can be easily controlled mildly by the presence of the organic solvent, but the organic solvent can be mixed with either the raw material TCDE or nitric acid or both.
- the temperature in the oxidation reaction is divided into a temperature at the time of adding the raw material TCDE to the aqueous solution of the oxidizing inorganic nitrogen oxide, and a reaction temperature preferably with stirring after the addition of the TCDE.
- the temperature at the time of addition of the former TCDE is preferably 0 to 50 ° C., and particularly preferably 20 to 40 ° C. from the viewpoint of the yield of the target product. It is preferable to carry out addition over time so that the added unreacted TCDE does not accumulate in the reaction vessel. If the temperature at the time of addition is too low, an induction period is observed, and unreacted TCDE accumulates in the reaction vessel and reacts with a sudden exotherm, which is not preferable. On the other hand, when it is too high, the generation of NOx gas is violently scattered to the outside of the reaction tank, and it is not preferable from the viewpoint of the yield of the target product.
- the reaction temperature after the addition of the latter TCDE is preferably 10 to 69 ° C., particularly preferably 30 to 69 ° C. If the temperature is higher than the above, the yield of the target product is lowered, which is not preferable.
- the yield of the target product is improved by maintaining the temperature after addition of TCDE in an aqueous solution of an oxidizing inorganic nitrogen oxide at a multistage temperature. That is, after the addition of TCDE, the yield of the desired product is improved by maintaining the temperature in two or more stages, preferably 30 to 59 ° C. in the first stage and preferably 60 to 100 ° C. in the second stage. In particular, it is preferable to hold at two or more stages of 40 to 55 ° C. in the first stage and 60 to 90 ° C. in the second stage.
- the oxidation reaction time is preferably taken from the viewpoint of safety and in terms of the yield of the target product, combining the addition time of the raw material TCDE into the aqueous solution of the oxidizing inorganic nitrogen oxide and the subsequent reaction time. .
- the addition time varies depending on the scale of the reaction and the cooling capacity of the reaction vessel, but is usually preferably 0.5 to 10 hours.
- the reaction time after the addition is usually 5 to 120 hours, preferably 10 to 80 hours.
- the reaction time for the first stage and the second stage is usually 5 to 50 hours, preferably 8 to 40 hours, more preferably 1 to 15 hours is preferred.
- the added nitric acid is preferably 3 to 20 moles, more preferably 4 to 10 moles per mole of TCDE.
- the concentration of nitric acid is preferably fuming nitric acid of 90 to 99% by mass.
- the temperature at the time of addition of the above-described aqueous nitric acid solution is preferably 20 to 60 ° C., more preferably 30 to 50 ° C.
- the yield of BOTC which is a target object can be raised by making temperature low.
- the addition of the additional aqueous nitric acid solution is preferably performed 5 minutes to 2 hours, more preferably 10 minutes to 1 hour after the addition of TCDE to the aqueous nitric acid solution in order to allow the reaction to proceed slowly. Is preferred.
- a higher yield can be obtained by gradually increasing the reaction temperature after the addition of an additional aqueous nitric acid solution.
- the temperature of the reaction system is increased to preferably 50 to 90 ° C., more preferably 60 to 80 ° C. over 20 to 80 hours, more preferably 30 to 60 hours. Rate is obtained.
- a method of raising the temperature a method of raising the temperature over multiple stages or a method of raising the temperature continuously may be used.
- the present invention aims to produce BOTC.
- exo-endo-BOTC which is a precursor of 2-exo-4-exo-6-endo-8-endo-BODA, is preferable.
- exo-endo-BOTC when the target product is exo-endo-BOTC, such exo-endo-BOTC can be easily separated from by-produced endo-endo-BOTC, and high-purity exo-endo-BOTC can be easily obtained. Has features that can be manufactured.
- the precipitated crystals are collected by filtration, washed with an organic solvent and dried to obtain a high-purity product of exo-endo-BOTC as a target product as primary crystals.
- organic solvent used at this time for example, 1,2-dichloroethane (EDC), acetonitrile, ethyl acetate, ethyl acetate / n-heptane mixed solution, or the like can be used.
- the concentrated solution obtained by concentrating the raw material TCDE to about 2 to 4 times by mass is left as it is, or cooled after adding an organic solvent.
- the precipitated crystals are collected by filtration, washed with an organic solvent and dried to obtain exo-endo-BOTC as secondary crystals.
- the organic solvent in this case, acetonitrile, ethyl acetate, ethyl acetate / n-heptane mixed solution, or the like can be used.
- the primary and secondary crystals of the exo-endo-BOTC can be further purified by a known washing method or recrystallization method to increase the purity.
- a washing method an organic solvent such as acetonitrile or ethyl acetate is added to the primary crystal or the secondary crystal and heated, ice-cooled, filtered, and dried.
- water, N, N-dimethylformamide (DMF) or the like can be used as a solvent.
- DMF N-dimethylformamide
- the recovery rate can be increased in combination with ethyl acetate, acetonitrile or the like as a poor solvent.
- 15.8 g (0.1 mol) of a mixture of exo-endo-TCDE / endo-endo-TCDE 88% / 22% under magnetic stirrer stirring.
- 15.8 g (0.1 mol) of a mixture of exo-endo-TCDE / endo-endo-TCDE 88% / 22% under magnetic stirrer stirring.
- the temperature was raised from 30 ° C. to 50 ° C. over 5 hours and 30 minutes, and then the first half was heated at 50 ° C. for 16 hours and further from 50 ° C. to 80 ° C. over 8 hours and 30 minutes, The latter half was stirred at 80 ° C. for 17 hours.
- the first half was heated at 45 ° C. for 16 hours 30 minutes, and further from 45 ° C. to 70 ° C. over 8 hours 30 minutes, The latter half was stirred at 70 ° C. for 15 hours, and further stirred at 75 ° C. for 8 hours.
- ozone generation amount 100 g / hr
- the mixture was concentrated to 1.33 kPa (10 mmHg) at a bath temperature of 35 ° C. to obtain 1.61 kg of a viscous oil. Furthermore, 2 L of acetic acid was added and dissolved by stirring at a bath temperature of 35 ° C., then cooled with ice water and allowed to stand overnight.
- this crystal had a target exo-endo-BOTC purity of 20%. That is, the forward dropping method has a low purity of the target product in the produced crystal and is difficult to purify.
- the high purity 2-exo-4-exo-6-endo-8-endo-BOTC which is the alicyclic tetracarboxylic acid produced according to the present invention, is an alicyclic polyimide used in the field of electronic materials. It is useful as a raw material.
- the entire contents of the specification, claims, and abstract of Japanese Patent Application No. 2009-039935 filed on Feb. 23, 2009 are incorporated herein as the disclosure of the specification of the present invention. Is.
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Abstract
Description
(1)下記式[A]で表される化合物を酸化性の無機窒素酸化物の水溶液に添加し、前記式[A]の化合物を酸化反応させて下記式[B]で表される化合物を生成させることを特徴とする脂環式テトラカルボン酸の製造方法、
(3)式[A]で表される化合物が、式[1]で表されるエキソ-エンド-テトラシクロ[4.4.12,5.17,10.01,6]ドデカ-3,8-ジエンであり、式[B]で表される化合物が、式[2]で表されるビシクロ[3.3.0]オクタン-2-エキソ-4-エキソ-6-エンド-8-エンド-テトラカルボン酸である(1)又は(2)に記載の脂環式テトラカルボン酸の製造方法、
(5)反応に使用する酸化性の無機窒素酸化物の合計量が、式[A]で表される化合物の1モルに対して 5~40モルである(1)~(4)のいずれかに記載の脂環式テトラカルボン酸の製造方法、
(6)式[A]で表される化合物と酸化性の無機窒素酸化物とを、有機溶媒の存在下に酸化反応させる(1)~(5)のいずれかに記載の脂環式テトラカルボン酸の製造方法、
(7)有機溶媒がハロゲン化炭化水素、酢酸、ニトロメタン又は飽和炭化水素である(6)に記載の脂環式テトラカルボン酸の製造方法、
(8)有機溶媒の存在量が、式[A]で表される化合物に対して0.5~10質量倍である(6)又は(7)に記載の脂環式テトラカルボン酸の製造方法。
(9)式[A]で表される化合物を、0~50℃にて酸化性の無機窒素酸化物の水溶液に添加する(1)~(8)のいずれかに記載の脂環式テトラカルボン酸の製造方法。
(10)式[A]で表される化合物を酸化性の無機窒素酸化物の水溶液に添加した後、30~59℃にて保持し、次いで60~100℃にて保持する(1)~(8)のいずれかに記載の脂環式テトラカルボン酸の製造方法、
(11)式[A]で表される化合物を酸化性の無機窒素酸化物の水溶液に添加した後に、更に酸化性の無機窒素酸化物を添加する(1)~(10)のいずれかに記載の脂環式テトラカルボン酸の製造方法、
(12)更に加える酸化性の無機窒素酸化物が、式[A]で表される化合物の1モルに対して3~20モルである(11)に記載の脂環式テトラカルボン酸の製造方法、
(13)更に加える酸化性の無機窒素酸化物が、硝酸、亜硝酸、二酸化窒素及び四酸化窒素からなる群から選ばれる少なくとも1種である(11)又は(12)に記載の脂環式テトラカルボン酸の製造法。
(14)更に添加する酸化性の無機窒素酸化物の水溶液を、20~60℃で添加する(11)~(13)のいずれかに記載の脂環式テトラカルボン酸の製造方法。
本発明において、TCDEを硝酸水溶液に添加した後に、更に硝酸水溶液を反応混合物溶液に添加するのが好ましい。この追加される硝酸は、TCDEの1モルに対し3~20モルであるのが好ましく、4~10モルであるのがより好ましい。また、この硝酸の濃度は90~99質量%の発煙硝酸が好ましい。
本発明では、上記追加される硝酸水溶液の添加時の温度は、20~60℃が好ましく、30~50℃がより好ましい。このように温度を低くすることにより目的物であるBOTCの収率を上げることができる。
また、上記追加の硝酸水溶液の添加は、上記硝酸水溶液へのTCDEの添加後、好ましくは5分~2時間、より好ましくは10分~1時間後に行うのが、反応を緩やかに進行させるために好適である。
更に、追加の硝酸水溶液添加後に反応温度を徐々に上げていくことでより高い収率を得ることができる。具体的には、好ましくは20~80時間、より好ましくは30~60時間かけて、反応系の温度が好ましくは50~90℃まで、より好ましくは60~80℃まで上げていくことで高い収率が得られる。温度を上昇させる方法としては、多段階にわたって温度を上げていく方法でも、連続的に温度を上げていく方法でもよい。
尚、実施例で用いた分析法は以下の通りである。
[1] [質量分析(MASS)]
機種:LX-1000(JEOL社製)、検出法:FAB法.
[2] [1H NMR]
機種:Varian社製NMR System 400NB(400MHz),
測定溶媒:DMSO-d6
標準物質:tetramethylsilane(TMS).
[3] [融点(m.p.)]
機種:微量融点測定装置(MP-S3)(ヤナコ機器開発研究所社製)
500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)90.0g(1mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)28.0g(0.4mol)及びEDC31.6gを仕込み、マグネチックスターラー攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=83%/17%の混合物31.6g(0.2mol)をEDC31.6gに溶解した溶液を45~50℃で45分かけて滴下した。続いて、50~55℃で17時間攪拌した。
MASS ( ESI-, m/z(%) ) : 285([M-H]-, 100), 267(5)
1H NMR ( DMSO-d6, δppm ) : 12.15 ( s, 4H ), 3.17-3.07 ( m, 2H ), 2.78-2.66 ( m, 2H ),2.54-2.42 ( m, 2H ), 2.21 ( dt, J=12.0, 6.0 Hz, 1H ), 1.83-1.72 ( m, 2H ), 1.58 ( dt, J=12.0, 12.0 Hz, 1H ).
尚、一次結晶及び二次結晶の金属分析では、K及びMnのいずれも検出限界以下(<1ppm)であった。
なお、上記実施例における酸化反応は以下のとおりである。
500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC47.4gを仕込み、マグネチックスターラー攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%15.8g(0.1mol)の混合物をEDC15.8gに溶解した溶液を33~40℃で1時間かけて滴下した。
続いて氷冷してから、ろ過し、ケーキをEDC30mLで2回洗浄し、減圧乾燥するとエキソ-エンド-BOTCの一次淡黄色結晶5.6g(純度98%)(収率22.0%)が得られた。
500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC47.4gを仕込み、マグネチックスターラー攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物を15.8g(0.1mol)をEDC15.8gに溶解した溶液を45~55℃で1時間かけて滴下した。続いて、発煙硝酸(濃度90~94重量%、密度1.50g/ml)49.0g(0.6mol)を45~50℃で30分かけて滴下した。更に、50~65℃まで5時間かけて昇温し、後65℃で17時間攪拌した。
続いて氷冷してから、ろ過し、ケーキをEDC30mLで2回洗浄し、減圧乾燥するとエキソ-エンド-BOTCの一次淡黄色結晶5.3g(純度98%)(収率20.0%)が得られた。
500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC15.8gを仕込み、マグネチックスターラー攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)をEDC15.8gに溶解した溶液を33~38℃で1時間かけて滴下した。続いて、発煙硝酸(濃度90~94重量%、密度1.50g/ml)42.0g(0.6mol)を32~40℃で10分かけて滴下した。続いて、40℃~50℃までを6時間かけて昇温してから、前半を50℃で16時間、更に50℃~65℃までを3時間かけて昇温してから、後半を65℃で20時間攪拌した。
m.p.(℃):255~260℃
攪拌羽付き500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC15.8gを仕込み、機械攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)をEDC15.8gに溶解した溶液を30~37℃で1時間かけて滴下した。続いて,発煙硝酸(濃度90~94重量%、密度1.50g/ml)42.0g(0.6mol)を30~33℃で20分かけて滴下した。続いて、33℃~50℃までを5時間かけて昇温してから、前半を50℃で16時間、更に50℃~65℃までを9時間かけて昇温してから、後半を65℃で20時間攪拌した。
m.p.(℃):255~260℃
500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC15.8gを仕込み、マグネチックスターラー攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)をEDC15.8gに溶解した溶液を30~40℃で1時間かけて滴下した。30~25℃で20分攪拌した後、発煙硝酸(濃度90~94重量%、密度1.50g/ml)42.0g(0.6mol)を33~40℃で50分かけて滴下した。
続いて氷冷してからろ過し、ケーキをEDC30mLで洗浄し、減圧乾燥するとエキソ-エンド-BOTCの一次淡黄色結晶12.2g(純度90%)(収率43.6%)が得られた。
m.p.(℃):265~267℃
攪拌羽付き500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC15.8gを仕込み、機械攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)をEDC15.8gに溶解した溶液を30~40℃で1時間かけて滴下した。30~25℃で20分攪拌した後、発煙硝酸(濃度90~94重量%、密度1.50g/ml)42.0g(0.6mol)を33~40℃で1時間かけて滴下した。
続いて氷冷してから酢酸エチル/n-ヘプタン=1/1の30mLを加えてスラリー化してからろ過し、ケーキを酢酸エチル/n-ヘプタン=1/1の30mLを加えて洗浄し、減圧乾燥するとエキソ-エンド-BOTCの一次淡黄色結晶12.0g(純度95%)(収率45.3%)が得られた。
攪拌羽付き500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC15.8gを仕込み、機械攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)をEDC15.8gに溶解した溶液を25~37℃で1時間20分かけて滴下した。30~25℃で20分攪拌した後、発煙硝酸(濃度90~94重量%、密度1.50g/ml)42.0g(0.6mol)を27~30℃で1時間かけて滴下した。
攪拌羽付き500mLの四つ口反応フラスコに、硝酸(濃度69~70重量%、密度1.42g/ml)18.0g(0.2mol)、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14.0g(0.2mol)及びEDC15.8gを仕込み、機械攪拌下に、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)をEDC15.8gに溶解した溶液を25~30℃で1時間35分かけて滴下した。30~25℃で15分攪拌した後、発煙硝酸(濃度90~94重量%、密度1.50g/ml)42.0g(0.6mol)を25~30℃で25分かけて滴下した。
20Lの反応槽にメタノール10.4Lを仕込み、-40℃に冷却した後、攪拌下にエキソ-エンド-TCDE/エンド-エンド-TCDE=83%/27%の混合物0.625kg(3.95mol)を滴下した。続いて、オゾン発生機からオゾンを含む酸素ガス(オゾン発生量:100g/hr)を25~30NL/min.の流速で5時間送入した。この間の液温は-27~-36℃(浴温:-40~-50℃)であった。その後窒素でバブリングした後、一夜静置した。
10L反応槽に35%過酸化水素水0.77L(8.95mol)、酢酸0.47L及び蟻酸0.47Lを仕込み、56℃に昇温したところに、オゾニド溶液0.41Lを液温が60℃以下に調節しながら注意深く滴下した。
再びオゾニド溶液1.73Lを液温が59~61℃で1時間かけて滴下した。続いて35%過酸化水素水0.77L(8.95mol)を液温が58~59℃で滴下した。
再びオゾニド溶液1.73Lを液温が61~63℃で0.5時間かけて滴下した。発熱反応が終了するまで攪拌を3.5時間(液温65℃以下に調整)続けた。その後4℃に冷却し、一夜静置した。
続いて、ろ過後100mLのアセトンで2回洗浄した後、減圧乾燥することにより白色結晶0.485kg(収率42.0%)が得られた。この結晶の異性対比を分析の結果、目的とするエキソ-エンド-BOTC純度は87%(収率36%)で、不純物であるエンド-エンド-BOTCは13%(収率6%)含有していることが判明した。尚、KびMnの金属分析結果は、1ppm以下であった。
攪拌羽付き2Lの四つ口反応フラスコに、エキソ-エンド-TCDE/エンド-エンド-TCDE=83%/17%の混合物10g(63mmol)と水1Lg仕込み、攪拌下に過マンガン酸カリウム(KMnO4)53.8g(340mmol)(5.4モル倍)を25℃~34℃間で2時間かけて添加した。続いて25℃で18時間攪拌を続け反応を停止させた。その後ろ過により固形分を除いた後、ろ液を60mLまで濃縮した。続いて、冷却しながら35%塩酸水35gを注意深く滴下し酸性にしてから、一夜静置した。
500mL四つ口反応フラスコに、エキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)とEDC15.8gを仕込んだ。これに対し27℃で硝酸(濃度69~70重量%、密度1.42g/ml)4.5g(0.05mol)、続いて発煙硝酸(濃度90~94重量%、密度1.50g/ml)3.5g(0.05mol)を滴下した。次に、46℃で硝酸(濃度69~70重量%、密度1.42g/ml)13.5g(0.25mol)を30分かけて滴下した。
再び、発煙硝酸(濃度90~94重量%、密度1.50g/ml)14g(0.2mol)を52℃で5分かけて滴下してから、52℃で32時間攪拌した。
500mLの四つ口反応フラスコにエキソ-エンド-TCDE/エンド-エンド-TCDE=88%/22%の混合物15.8g(0.1mol)を仕込んだ。これに対し、40℃で硝酸(濃度69~70重量%、密度1.42g/ml)36g(0.4mol)を30分かけて滴下した後、続いて発煙硝酸(濃度90~94重量%、密度1.50g/ml)7g(0.1mol)を滴下した。次に、40℃で発煙硝酸(濃度90~94重量%、密度1.50g/ml)7g(0.1mol)を10分で滴下し、更に、硝酸(濃度69~70重量%、密度1.42g/ml)36g(0.4mol)を10分かけて滴下した。続いて50℃で22時間攪拌した。更に、52~57℃で24時間攪拌した。
100mlの四つ口反応フラスコに実施例5で得られたBOTC一次晶を水から再結晶した白色結晶5.2g(18.1mmol)と無水酢酸37.0gを仕込み、マグネチックスターラー攪拌下に、昇温し120℃油浴で20分反応させると、スラリー液は均一透明液になった。更に10分間攪拌を続けた後反応を停止した後、重量16gまで濃縮してからスラリー液を氷冷した。この結晶をろ過した後、トルエンで2回洗浄してから、減圧乾燥すると白色結晶4.2g(16.8mmol)(収率92.8%)が得られた。
尚、この結晶の金属分析の結果、Kは、1ppm以下であった。
なお、2009年2月23日に出願された日本特許出願2009-039935号の明細書、特許請求の範囲、及び要約書の全内容をここに引用し、本発明の明細書の開示として、取り入れるものである。
Claims (14)
- 式[A]で表される化合物が添加される前の酸化性の無機窒素酸化物の水溶液の濃度は72~89質量%である請求項1に記載の脂環式テトラカルボン酸の製造方法。
- 酸化性の無機窒素酸化物が、硝酸、亜硝酸、二酸化窒素及び四酸化窒素からなる群から選ばれる少なくとも1種である請求項1~3のいずれかに記載の脂環式テトラカルボン酸の製造方法。
- 反応に使用する酸化性の無機窒素酸化物の合計量が、式[A]で表される化合物の1モルに対して5~40モルである請求項1~4のいずれかに記載の脂環式テトラカルボン酸の製造方法。
- 式[A]で表される化合物と酸化性の無機窒素酸化物とを、有機溶媒の存在下に酸化反応させる請求項1~5のいずれかに記載の脂環式テトラカルボン酸の製造方法。
- 有機溶媒がハロゲン化炭化水素、酢酸、ニトロメタン又は飽和炭化水素である請求項6に記載の脂環式テトラカルボン酸の製造方法。
- 有機溶媒の存在量が、式[A]で表される化合物に対して0.5~10質量倍である請求項6又は7に記載の脂環式テトラカルボン酸の製造方法。
- 式[A]で表される化合物を、0~50℃にて酸化性の無機窒素酸化物の水溶液に添加する請求項1~8のいずれかに記載の脂環式テトラカルボン酸の製造方法。
- 式[A]で表される化合物を酸化性の無機窒素酸化物の水溶液に添加した後、30~59℃にて保持し、次いで60~100℃にて保持する請求項1~9のいずれかに記載の脂環式テトラカルボン酸の製造方法。
- 式[A]で表される化合物を酸化性の無機窒素酸化物の水溶液に添加した後に、更に酸化性の無機窒素酸化物を添加する請求項1~10のいずれかに記載の脂環式テトラカルボン酸の製造方法。
- 更に添加する酸化性の無機窒素酸化物が、式[A]で表される化合物の1モルに対して3~20モルである請求項11に記載の脂環式テトラカルボン酸の製造方法。
- 更に添加する酸化性の無機窒素酸化物が、硝酸、亜硝酸、二酸化窒素及び四酸化窒素からなる群から選ばれる少なくとも1種である請求項11又は12に記載の脂環式テトラカルボン酸の製造方法。
- 更に添加する酸化性の無機窒素酸化物の水溶液を、20~60℃で添加する請求項11~13のいずれかに記載の脂環式テトラカルボン酸の製造方法。
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101700462B1 (ko) | 2017-01-26 |
| CN102395552B (zh) | 2014-11-12 |
| CN102395552A (zh) | 2012-03-28 |
| TW201041842A (en) | 2010-12-01 |
| JPWO2010095604A1 (ja) | 2012-08-23 |
| KR20110129907A (ko) | 2011-12-02 |
| TWI469963B (zh) | 2015-01-21 |
| JP5724870B2 (ja) | 2015-05-27 |
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