CN1508125A - Process for producing 4-nitro-phthalonitrile - Google Patents
Process for producing 4-nitro-phthalonitrile Download PDFInfo
- Publication number
- CN1508125A CN1508125A CNA021582025A CN02158202A CN1508125A CN 1508125 A CN1508125 A CN 1508125A CN A021582025 A CNA021582025 A CN A021582025A CN 02158202 A CN02158202 A CN 02158202A CN 1508125 A CN1508125 A CN 1508125A
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- China
- Prior art keywords
- phthalic
- nitrophthalonitrile
- phthalic imidine
- carried out
- generate
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The present invention relates to an intermediate compound-4-nitrophthalonitrile, it can be used in the fields of medicine and new material, etc. Said invention adopts phthalic imidine as raw material, and makes said raw material undergo the reaction processes of acidylation, nitration, aminolysis and condensation so as to obtain the invented product.
Description
Technical field: this product relates to a kind of intermediate of chemical materials, particularly relates to the production technique of the 4-nitrophthalonitrile that a kind of novel material that is used for information products uses.
Background technology: the production technique of the 4-nitrophthalonitrile that arrives involved in the present invention, do not find identical or akin complete processing according to the Searches of Patent Literature both at home and abroad.By domestic and international on line information retrieval analysis, closely related document has been introduced the preparation method of phthalic nitrile and the report of 4-nitrophthalonitrile.
Summary of the invention: involved in the present invention to the 4-nitrophthalonitrile be a kind of intermediate, be applied to fields such as medicine, novel material, the employing phthalic imidine is a raw material, makes through acidylate, nitrated, reaction process such as ammonia is separated, condensation.The production technique of 4-nitrophthalonitrile is characterized in that: phthalic anhydride and urea are carried out acylation reaction generation phthalic imidine; Phthalic imidine and nitric acid are carried out nitration reaction under the vitriolic effect, generate the 4-phthalic imidine; Then 4-phthalic imidine and ammonia are carried out oxidative ammonolysis, generate the 4-phthalic diamide; To generate 4-phthalic diamide and sulfur oxychloride and carry out condensation reaction, obtain the 4-nitrophthalonitrile at last.The molecular formula of product is C
8H
3N
3O
2, molecular weight is 173.13, and fusing point is 142-144 ℃, and outward appearance is a white crystalline powder, is soluble in polar solvent, is dissolved in common solvent slightly, is slightly soluble in water, belongs to non-inflammable, explosive, hypertoxic product.Production technique of the present invention is scientific and reasonable, is easy to production control and quality control, has avoided using in the production process phthalonitrile of severe toxicity, and raw material is easy to get, and low production cost lays a good foundation for derived product reduces cost and enlarges market on a large scale.
Embodiment: production technique 4-nitrophthalonitrile of the present invention is to adopt the phthalic anhydride very easily buied on the market and urea as raw material, and its working method is that phthalic anhydride and urea are carried out acylation reaction generation phthalic imidine:
(phthalic anhydride) (urea) (phthalic imidine)
Phthalic imidine and nitric acid are carried out nitration reaction under the vitriolic effect, generate 4-nitro phthalic imidine:
(phthalic imidine) (nitric acid) (4-nitro phthalic imidine)
Then 4-nitro phthalic imidine and ammonia are carried out oxidative ammonolysis, generate the adjacent diformamide of 4-nitro:
(4-nitro phthalic imidine) (ammonia) (the adjacent diformamide of 4-nitro)
Adjacent diformamide of the 4-nitro that generates and sulfur oxychloride are carried out condensation reaction, obtain the 4-nitrophthalonitrile at last.
(the adjacent diformamide of 4-nitro) (sulfur oxychloride) (4-nitrophthalonitrile)
Claims (1)
- The production technique of 4-nitrophthalonitrile is characterized in that: phthalic anhydride and urea are carried out acylation reaction generation phthalic imidine; Phthalic imidine and nitric acid are carried out nitration reaction under the vitriolic effect, generate the 4-phthalic imidine; Then 4-phthalic imidine and ammonia are carried out oxidative ammonolysis, generate the 4-phthalic diamide; To generate 4-phthalic diamide and sulfur oxychloride and carry out condensation reaction, obtain the 4-nitrophthalonitrile at last.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021582025A CN1508125A (en) | 2002-12-20 | 2002-12-20 | Process for producing 4-nitro-phthalonitrile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021582025A CN1508125A (en) | 2002-12-20 | 2002-12-20 | Process for producing 4-nitro-phthalonitrile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1508125A true CN1508125A (en) | 2004-06-30 |
Family
ID=34236911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021582025A Pending CN1508125A (en) | 2002-12-20 | 2002-12-20 | Process for producing 4-nitro-phthalonitrile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1508125A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557988A (en) * | 2011-12-28 | 2012-07-11 | 河北化工医药职业技术学校 | Preparation method of 4-nitro phthalonitrile |
| CN106565591A (en) * | 2016-11-14 | 2017-04-19 | 扬州大学 | 3/4-nitrophthalimide coproduction process |
-
2002
- 2002-12-20 CN CNA021582025A patent/CN1508125A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557988A (en) * | 2011-12-28 | 2012-07-11 | 河北化工医药职业技术学校 | Preparation method of 4-nitro phthalonitrile |
| CN102557988B (en) * | 2011-12-28 | 2014-05-21 | 河北化工医药职业技术学院 | Preparation method of 4-nitro phthalonitrile |
| CN106565591A (en) * | 2016-11-14 | 2017-04-19 | 扬州大学 | 3/4-nitrophthalimide coproduction process |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |