WO2022088302A1 - 一种异邻苯二甲酰亚胺的制备方法 - Google Patents
一种异邻苯二甲酰亚胺的制备方法 Download PDFInfo
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- WO2022088302A1 WO2022088302A1 PCT/CN2020/129932 CN2020129932W WO2022088302A1 WO 2022088302 A1 WO2022088302 A1 WO 2022088302A1 CN 2020129932 W CN2020129932 W CN 2020129932W WO 2022088302 A1 WO2022088302 A1 WO 2022088302A1
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- Prior art keywords
- isophthalimide
- isophthalonitrile
- preparation
- hydrogen peroxide
- sodium carbonate
- Prior art date
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 10
- QZUPTXGVPYNUIT-UHFFFAOYSA-N isophthalamide Chemical compound NC(=O)C1=CC=CC(C(N)=O)=C1 QZUPTXGVPYNUIT-UHFFFAOYSA-N 0.000 title abstract 3
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 28
- LAQPNDIUHRHNCV-UHFFFAOYSA-N isophthalonitrile Chemical compound N#CC1=CC=CC(C#N)=C1 LAQPNDIUHRHNCV-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 24
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 14
- 238000006460 hydrolysis reaction Methods 0.000 claims abstract description 10
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000007062 hydrolysis Effects 0.000 claims abstract description 3
- 239000002994 raw material Substances 0.000 claims abstract description 3
- 230000003197 catalytic effect Effects 0.000 claims abstract 2
- YRCLULQVBWQJCG-UHFFFAOYSA-N 3-azabicyclo[3.3.1]nona-1(9),5,7-triene-2,4-dione Chemical compound C1=CC(C(=O)NC2=O)=CC2=C1 YRCLULQVBWQJCG-UHFFFAOYSA-N 0.000 claims description 21
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N dimethyl sulfoxide Natural products CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 6
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 4
- 238000001914 filtration Methods 0.000 claims description 2
- 239000000126 substance Substances 0.000 claims description 2
- IAZDPXIOMUYVGZ-WFGJKAKNSA-N Dimethyl sulfoxide Chemical group [2H]C([2H])([2H])S(=O)C([2H])([2H])[2H] IAZDPXIOMUYVGZ-WFGJKAKNSA-N 0.000 claims 1
- XQZYPMVTSDWCCE-UHFFFAOYSA-N phthalonitrile Chemical compound N#CC1=CC=CC=C1C#N XQZYPMVTSDWCCE-UHFFFAOYSA-N 0.000 claims 1
- 229920006391 phthalonitrile polymer Polymers 0.000 claims 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 4
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 abstract description 4
- 239000011574 phosphorus Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000005060 rubber Substances 0.000 abstract description 3
- 239000002351 wastewater Substances 0.000 abstract description 3
- 230000018044 dehydration Effects 0.000 abstract description 2
- 238000006297 dehydration reaction Methods 0.000 abstract description 2
- 238000003786 synthesis reaction Methods 0.000 abstract description 2
- 231100001261 hazardous Toxicity 0.000 abstract 1
- 238000005984 hydrogenation reaction Methods 0.000 abstract 1
- 239000000706 filtrate Substances 0.000 description 7
- 125000001989 1,3-phenylene group Chemical group [H]C1=C([H])C([*:1])=C([H])C([*:2])=C1[H] 0.000 description 3
- -1 amide compound Chemical class 0.000 description 2
- 239000012024 dehydrating agents Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000007112 amidation reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/06—Preparation of carboxylic acid amides from nitriles by transformation of cyano groups into carboxamide groups
- C07C231/065—By hydration using metals or metallic ions as catalyst
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/06—Preparation of carboxylic acid amides from nitriles by transformation of cyano groups into carboxamide groups
Definitions
- the invention belongs to the technical field of organic synthesis of tire rubber, and particularly relates to a preparation method of isophthalimide.
- Isophthalimide is an amide compound, an intermediate of many fine chemicals such as dyes, pesticides, medicines, rubber auxiliaries, etc., the melting point is 268-270 ° C, and the traditional manufacturing process (CN110437080A) reported using m-phenylene
- CN110437080A the traditional manufacturing process reported using m-phenylene
- the present invention intends to provide a high-selectivity isophthalimide preparation process, using isophthalonitrile as a reaction raw material, in the presence of anhydrous sodium carbonate and hydrogen peroxide, through catalyst catalysis Hydrolysis obtained.
- the new process has the advantages of green environmental protection, safety and reliability, environmental protection and energy saving.
- the specific steps are as follows: dissolving isophthalonitrile in an organic solvent, adding anhydrous sodium carbonate and hydrogen peroxide thereto, then adding a catalyst, reacting at 60-80 DEG C, and completing the reaction, filtering and washing with water to obtain isophthaloyl imine, the reaction time is 4-5h, the reaction temperature is preferably 60-65°C, and the reaction time is preferably 3-3.5h.
- the organic solvent is dimethyl sulfoxide, and the added amount of dimethyl sulfoxide is 10-15 times the mass of isophthalonitrile.
- the catalyst is MnO 2 /SiO 2 or Au/TiO 2 or Raney-Cu, and the added amount of the catalyst is 0.5% to 2.0% of the molar amount of isophthalonitrile.
- Described anhydrous sodium carbonate is 5 ⁇ 10% of isophthalonitrile quality
- the invention has the beneficial effects of solving the problems of large amount of phosphorus-containing waste water and high reaction energy consumption in the traditional dehydration process of isophthalic acid, and the new process has mild reaction conditions, easy control, environmental protection and safety. Reliable, environmentally friendly and energy-saving advantages.
- 64g of isophthalonitrile was dissolved in 640g of dimethyl sulfoxide, and 6.4g of anhydrous sodium carbonate and 63.6g of 32% hydrogen peroxide were added to the reaction solution at one time, and then Au/TiO 2 was added, and the amount of Au/TiO 2 was m-phenylene 0.5% of the molar weight of dinitrile, catalyzed hydrolysis reaction at 80°C for 4 hours and then cooled down, the reaction solution was filtered and washed with water to obtain 80.4 g of pure isophthalimide, the filtrate and the washing solution were recovered and applied mechanically, and the yield was the same as that of isophthalonitrile. Calculated to be about 98.1%.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Indole Compounds (AREA)
Abstract
属于轮胎橡胶有机合成技术领域,具体涉及一种异邻苯二甲酰亚胺的制备方法。以间苯二腈为反应原料,在无水碳酸钠与双氧水存在下,经催化剂催化水解制得。不涉及硝化和加氢的危险工艺,解决了间苯二甲酸传统脱水工艺含磷废水量大,反应能耗高的问题,新工艺具有绿色环保、安全可靠,环保节能的优点。
Description
本发明属于轮胎橡胶有机合成技术领域,具体涉及一种异邻苯二甲酰亚胺的制备方法。
异邻苯二甲酰亚胺为酰胺化合物,为染料、农药、医药、橡胶助剂等许多精细化学品的中间体,熔点为268-270℃,传统的制造工艺(CN110437080A)报道的采用间苯二甲酸脱水剂存在下的高温酰胺化反应,但含磷化合物脱水剂存在下,反应产生大量的含磷废水,且能耗较高。
鉴于异邻苯二甲酰亚胺制备现状,有必要寻找一种绿色环保、安全可靠,环保节能的生产工艺。
发明内容
针对现有技术的不足,本发明拟提供一种高选择性的异邻苯二甲酰亚胺制备工艺,以间苯二腈为反应原料,在无水碳酸钠与双氧水存在下,经催化剂催化水解制得。该新工艺具有绿色环保、安全可靠,环保节能的优点。
具体的合成路线为:
其具体步骤为:将间苯二腈溶于有机溶剂中,向其中加入无水碳酸钠和双氧水,然后加入催化剂,60~80℃反应,反应完毕,经过滤、水洗得异邻苯二甲酰亚胺,反应时间4~5h,反应温度优选为60~65℃,反应时间优选为3~3.5h。
所述有机溶剂为二甲基亚砜,二甲基亚砜加入量为间苯二腈质量的10~15倍。
所述催化剂为MnO
2/SiO
2或Au/TiO
2或Raney-Cu,催化剂的加入量为间苯二腈摩尔量的0.5%~2.0%。
所述双氧水的质量分数为32%,以纯物质的摩尔比计,间苯二腈:H
2O
2=1:1.2~1.3。
所述无水碳酸钠为间苯二腈质量的5~10%
与现有技术相比,本发明的有益效果为:解决了间苯二甲酸传统脱水工艺含磷废水量大,反应能耗高的问题,新工艺反应条件温和、易于控制、具有绿色环保、安全可靠,环保节能 的优点。
为了更好的理解本发明的技术方案,以下通过实施例形式的具体实施方式,对本发明的上述内容做进一步的详细说明,但不应将此理解为本发明是对上述内容的限定。
实施例1
64g间苯二腈溶于640g二甲基亚砜中,向反应液一次加入无水碳酸钠6.4g、32%双氧水63.6g,然后加入Au/TiO
2,Au/TiO
2的加入量为间苯二腈摩尔量的0.5%,80℃催化水解反应4h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺80.4g,滤液及水洗液回收套用,收率以间苯二腈计约为98.1%。
实施例2
64g间苯二腈溶于640g二甲基亚砜中,向反应液一次加入无水碳酸钠6.4g、32%双氧水68.9g,然后加入MnO
2/SiO
2,MnO
2/SiO
2的加入量为间苯二腈摩尔量的0.5%,80℃催化水解反应5h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺79.4g,滤液及水洗液回收套用,收率以间苯二腈计约为96.8%。
实施例3
64g间苯二腈溶于960g二甲基亚砜中,向反应液一次加入无水碳酸钠3.2g、32%双氧水64.2g,然后加入MnO
2/SiO
2,MnO
2/SiO
2的加入量为间苯二腈摩尔量的2.0%,60℃催化水解反应5h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺79.9g,滤液及水洗液回收套用,收率以间苯二腈计约为97.5%。
实施例4
64g间苯二腈溶于760g二甲基亚砜中,向反应液一次加入无水碳酸钠4.5g、32%双氧水65.3g,然后加入Raney-Cu,Raney-Cu的加入量为间苯二腈摩尔量的2.0%,60℃催化水解反应3h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺80.9g,滤液及水洗液回收套用,收率以间苯二腈计约为98.7%。
实施例5
64g间苯二腈溶于830g二甲基亚砜中,向反应液一次加入无水碳酸钠5.1g、32%双氧水66.8g,然后加入Au/TiO
2,Au/TiO
2的加入量为间苯二腈摩尔量的2.0%,65℃催化水解反应3.5h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺80.6g,滤液及水洗液回收套用,收率以间苯二腈计约为98.3%。
实施例6
64g间苯二腈溶于800g二甲基亚砜中,向反应液一次加入无水碳酸钠4.5g、32%双氧水65.3g,然后加入Raney-Cu,Raney-Cu的加入量为间苯二腈摩尔量的1.0%,60℃催化水解反 应3h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺80.0g,滤液及水洗液回收套用,收率以间苯二腈计约为97.6%。
实施例7
64g间苯二腈溶于640g二甲基亚砜中,向反应液一次加入无水碳酸钠6.4g、32%双氧水68.9g,80℃催化水解反应5h后降温,反应液过滤、水洗得到纯品异邻苯二甲酰亚胺74.4g,滤液及水洗液回收套用,收率以间苯二腈计约为90.7%。
Claims (6)
- 一种异邻苯二甲酰亚胺的制备方法,其特征在于,以间苯二腈为反应原料,在无水碳酸钠与双氧水存在下,经催化剂催化水解制得。
- 根据权利要求1所述的一种异邻苯二甲酰亚胺的制备方法,其特征在于,其具体步骤为:将间苯二腈溶于有机溶剂中,向其中加入无水碳酸钠和双氧水,然后加入催化剂,60~80℃反应,反应完毕,经过滤、水洗得异邻苯二甲酰亚胺。
- 根据权利要求2所述的一种异邻苯二甲酰亚胺的制备方法,其特征在于,所述有机溶剂为二甲基亚砜,二甲基亚砜加入量为间苯二腈质量的10~15倍。
- 根据权利要求1所述的一种异邻苯二甲酰亚胺的制备方法,其特征在于,所述催化剂为MnO 2/SiO 2或Au/TiO 2或Raney-Cu,催化剂的加入量为间苯二腈摩尔量的0.5%~2.0%。
- 根据权利要求1所述的一种异邻苯二甲酰亚胺的制备方法,其特征在于,所述双氧水的质量分数为32%,以纯物质的摩尔比计,间苯二腈:H 2O 2=1:1.2~1.3。
- 根据权利要求1所述的一种异邻苯二甲酰亚胺的制备方法,其特征在于,所述无水碳酸钠为间苯二腈质量的5~10%。
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