CN1616397A - Synthetic method for tricyclic propionate - Google Patents
Synthetic method for tricyclic propionate Download PDFInfo
- Publication number
- CN1616397A CN1616397A CN 200310108629 CN200310108629A CN1616397A CN 1616397 A CN1616397 A CN 1616397A CN 200310108629 CN200310108629 CN 200310108629 CN 200310108629 A CN200310108629 A CN 200310108629A CN 1616397 A CN1616397 A CN 1616397A
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- China
- Prior art keywords
- acid
- propionic acid
- propionate
- tricyclic
- reaction
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Abstract
The present invention discloses a kind of tricyclic propionate. Dicyclopentadiene material is made to react with propanic acid under heating and in the presence of catalyst to obtain tricyclic propionate. The catalyst is perchloric acid, phosphoric acid, sulfuric acid, super solid acid, etc; the reaction temperature is 50-100 deg.c; and the reaction time is 1-5 hr. The present invention has the advantages of low catalyst amount, small amount of 'three wastes', high conversion rate and high reaction yield up to 86 %.
Description
Technical field:
The present invention relates to a kind of spices---the synthetic method of propionic acid triclazate.
Background technology:
The propionic acid triclazate is to have floweriness clearly, has medicinal herbs, jasmine, fennel note, and fragrance gentleness, lasting are lasting, are applicable to many adding in the incense products, belong to a kind of cheap and good-quality spices.The propionic acid triclazate is to be raw material with the dicyclopentadiene, obtains the propionic acid triclazate with propionic acid direct esterification reaction in the presence of little amount of catalyst.Select different catalyzer for use, dicyclopentadiene is different with the transformation efficiency of propionic acid addition reaction, and the low product that is unfavorable for of transformation efficiency is purified.
Summary of the invention:
The present invention is directed to the shortcoming of prior art, the synthetic method of the high propionic acid triclazate of a kind of transformation efficiency is provided.
The synthetic method of propionic acid triclazate of the present invention is: be raw material with the dicyclopentadiene, under the heating and the condition of little amount of catalyst by reacting with propionic acid, obtain the propionic acid triclazate, the reaction catalyst system therefor is perchloric acid, phosphoric acid, sulfuric acid and solid super-strong acid, 50 ℃-100 ℃ of temperature of reaction, reaction times 1-5 hour is raw material with the dicyclopentadiene.Its reaction formula is as follows:
The invention has the advantages that used catalyst solid super acids, transformation efficiency 〉=98%, transformation efficiency height, product purify easily and the three wastes few.
Embodiment:
Further specify enforcement of the present invention below:
In the 250ml there-necked flask of agitator, spherical condensating tube is housed, add 100g dicyclopentadiene, 120 gram propionic acid and little amount of catalyst solid super-strong acids, be heated to about 70 ℃, stirring reaction 2.5 hours, be chilled to room temperature, with saturated aqueous sodium carbonate and be washed to neutrality, after the underpressure distillation about crude product 138g, content 97.5%, yield 86.2%.After fractionation, can get content again and reach 99% above finished product, fractionation yield 95%.
Claims (1)
1. the method for a propionic acid synthesized triclazate, it is characterized in that: be raw material with the dicyclopentadiene, under the heating and the condition of catalyzer by reacting with propionic acid, obtain the propionic acid triclazate, the reaction catalyst system therefor is perchloric acid, phosphoric acid, sulfuric acid and solid super-strong acid, 50 ℃-100 ℃ of temperature of reaction, reaction times 1-5 hour.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108629 CN1616397A (en) | 2003-11-14 | 2003-11-14 | Synthetic method for tricyclic propionate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200310108629 CN1616397A (en) | 2003-11-14 | 2003-11-14 | Synthetic method for tricyclic propionate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1616397A true CN1616397A (en) | 2005-05-18 |
Family
ID=34758651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200310108629 Pending CN1616397A (en) | 2003-11-14 | 2003-11-14 | Synthetic method for tricyclic propionate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1616397A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193639A (en) * | 2012-01-10 | 2013-07-10 | 南昌洋浦天然香料香精有限公司 | Synthetic method of perfume verdyl acetate |
-
2003
- 2003-11-14 CN CN 200310108629 patent/CN1616397A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103193639A (en) * | 2012-01-10 | 2013-07-10 | 南昌洋浦天然香料香精有限公司 | Synthetic method of perfume verdyl acetate |
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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 |