CN103030531A - Synthetic technology of 2,6-dimethylphenol - Google Patents
Synthetic technology of 2,6-dimethylphenol Download PDFInfo
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- CN103030531A CN103030531A CN 201110290572 CN201110290572A CN103030531A CN 103030531 A CN103030531 A CN 103030531A CN 201110290572 CN201110290572 CN 201110290572 CN 201110290572 A CN201110290572 A CN 201110290572A CN 103030531 A CN103030531 A CN 103030531A
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- compound
- dimethylphenol
- synthetic technology
- xylenol
- present
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- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The invention belongs to the fine chemical engineering field, and concretely relates to a synthetic technology of 2,6-dimethylphenol. The synthetic technology of 2,6-dimethylphenol has the advantages of mild reaction condition and high product quality. The technology comprises a step of the synthesis of a compound II, and a step of the synthesis of the compound 2,6-dimethylphenol.
Description
Technical field:
The invention belongs to field of fine chemical, more particularly, relate to the synthesis technique of 2,6-xylenol.
Background technology:
2, the 6-xylenol is important industrial chemicals and fine-chemical intermediate, can be as the monomer of synthetic polyphenylene oxide that engineering is expected and Noryl, also can be used for the production of High temp. epoxy resins, agricultural chemicals, the with medicament of also can taking a picture, while or raw material and the intermediate of some medicines, such as anti-arrhythmic mexiletine and vitamin-E etc., its structural formula is as shown below.
2,6-xylenol
The synthetic of 2,6-xylenol has been reported both at home and abroad, mainly contain the aminomethylation method of phenol, the replacement of halogenated phenol, the oxidation of dimethylbenzene, but condition is all very harsh.The phenol and ortho-cresol and methyl alcohol of adopting are reacting under gas phase state in the presence of the catalyzer more now, the metal oxides such as the multiplex magnesium fluoride of catalyzer need at high temperature reaction, and selectivity are not high, can produce the contraposition product of significant proportion, quality is affected.
Summary of the invention:
The present invention is exactly for the problems referred to above, provide that a kind of reaction conditions is gentle, quality product is high 2, the synthesis technique of 6-xylenol.
In order to realize above-mentioned purpose of the present invention, the present invention adopts following technical scheme, and processing step of the present invention is:
1. Compound I I's is synthetic
Reaction equation is:
Compound I I
2. compound
Reaction equation is:
Compound I I compound III
3.2,6-xylenol synthetic
Reaction equation is:
The compound III Compound I
Beneficial effect of the present invention:
1. reaction conditions of the present invention is gentle, and is simple to operate;
2. yield of the present invention is 87.5%;
3. hydrolysising mother liquid can repeatedly use, and the three wastes are few, aftertreatment is simple, are easy to suitability for industrialized production.
Embodiment:
Processing step of the present invention is:
1. Compound I I's is synthetic
Reaction equation is:
Compound I I
2. compound
Reaction equation is:
Compound I I compound III
3.2,6-xylenol synthetic
Reaction equation is:
The compound III Compound I
The structure of product of the present invention has obtained the affirmation of infrared spectrum and nuclear magnetic spectrogram.
Claims (1)
1.2 the synthesis technique of 6-xylenol is characterized in that, processing step of the present invention is:
(1) Compound I I's is synthetic
Reaction equation is:
Compound I I
(2) compound
Reaction equation is:
Compound I I compound III
Synthesizing of (3) 2,6-xylenols
Reaction equation is:
The compound III Compound I
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110290572 CN103030531A (en) | 2011-09-29 | 2011-09-29 | Synthetic technology of 2,6-dimethylphenol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110290572 CN103030531A (en) | 2011-09-29 | 2011-09-29 | Synthetic technology of 2,6-dimethylphenol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103030531A true CN103030531A (en) | 2013-04-10 |
Family
ID=48017984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110290572 Pending CN103030531A (en) | 2011-09-29 | 2011-09-29 | Synthetic technology of 2,6-dimethylphenol |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103030531A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429264A (en) * | 2021-06-02 | 2021-09-24 | 淮阴工学院 | Continuous production method of 3-chloro-2-methylphenol and device for producing same |
-
2011
- 2011-09-29 CN CN 201110290572 patent/CN103030531A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429264A (en) * | 2021-06-02 | 2021-09-24 | 淮阴工学院 | Continuous production method of 3-chloro-2-methylphenol and device for producing same |
| CN113429264B (en) * | 2021-06-02 | 2023-06-30 | 淮阴工学院 | Continuous production method of 3-chloro-2-methylphenol and device for production thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130410 |