CN101234964A - Method for synthesizing benzylalcohol polyoxypropylene ether fatty acid ester - Google Patents
Method for synthesizing benzylalcohol polyoxypropylene ether fatty acid ester Download PDFInfo
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- CN101234964A CN101234964A CNA2007101647875A CN200710164787A CN101234964A CN 101234964 A CN101234964 A CN 101234964A CN A2007101647875 A CNA2007101647875 A CN A2007101647875A CN 200710164787 A CN200710164787 A CN 200710164787A CN 101234964 A CN101234964 A CN 101234964A
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- polyoxypropylene ether
- fatty acid
- benzylalcohol
- acid ester
- benzyl alcohol
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Abstract
A synthesis method of benzyl alcohol polyoxypropylene ether fatty acid ester belongs to the ester compound synthesis technical field of organic chemistry, which uses benzyl alcohol polyoxypropylene ether and fatty acid as raw materials. The method is characterized in that in the presence of metal oxide catalyst, benzyl alcohol polyoxypropylene ether fatty acid ester is prepared via dehydration-condensation reaction, wherein the metal oxide catalyst is ferric oxide, stannous oxide or magnesium oxide or the like with the amount of 0.25-1.05% of the total weight of the benzyl alcohol polyoxypropylene ether and fatty acid, benzyl alcohol polyoxypropylene ether contains 2-8 alkoxy groups, the mol ratio of benzyl alcohol polyoxypropylene ether and fatty acid is 1:0.92-1.02. The invention utilizes the dehydration-condensation reaction in the presence of metal oxide catalyst, with simple process, less side reaction, reduced cost and improved yield, and the invention requires mild reaction conditions and simple equipment, to save equipment investment and reduce energy consumption.
Description
Technical field
The present invention relates to a kind of synthetic method of benzylalcohol polyoxypropylene ether fatty acid ester, belong to technical field of synthesis of ester compounds in the organic chemistry.
Technical field
Benzylalcohol polyoxypropylene ether fatty acid ester is a kind of nonionic surface active agent, is colourless, tasteless, nontoxic, transparent oily liquid at normal temperatures, and is water insoluble.Owing in molecule, add the propoxy-chain link, increased the lipophilicity of product, as cosmetics of super quality oiliness improver.But the then rarely seen report of its synthetic method.
Summary of the invention
It is reasonable to the purpose of this invention is to provide a kind of technology, simple to operate, has the synthetic method of the benzylalcohol polyoxypropylene ether fatty acid ester of better use properties.
The present invention is the synthetic method of benzylalcohol polyoxypropylene ether fatty acid ester, is raw material with benzylalcohol polyoxypropylene ether and lipid acid, it is characterized in that carrying out dehydration condensation under the effect of metal oxide catalyst, makes benzylalcohol polyoxypropylene ether fatty acid ester; Described metal oxide catalyst is ferric oxide or tin protoxide, magnesium oxide etc., and its add-on is 0.25～1.05% of benzylalcohol polyoxypropylene ether and a lipid acid total weight percent.
The quantity of alkoxyl group can be 2～8 in the described benzylalcohol polyoxypropylene ether.
The mol ratio of described benzylalcohol polyoxypropylene ether and lipid acid can be 1: 0.92～and 1.02.
Described lipid acid can be stearic acid or palmitinic acid, tetradecanoic acid etc.
The temperature of described dehydration condensation can be 160～230 ℃, and the reaction times is 3～8 hours.
The present invention compared with prior art has following outstanding advantage and positively effect:
1, rationally select dehydration esterification under the metal oxide catalyst effect for use, technology is simple, and side reaction is few, can effectively reduce cost, and improves yield;
2, through optimization design and repetition test research, rationally determined processing parameter and conditions such as proportioning raw materials, catalyst levels, temperature of reaction, time, the reaction conditions gentleness, institute's employing equipment is simple, thereby facility investment and energy consumption are more saved;
3, have characteristics such as nontoxic, tasteless, colourless by synthetic benzylalcohol polyoxypropylene ether fatty acid ester of the present invention, be applicable in fields such as the cosmetics of super quality and use.
Embodiment
The embodiment of the invention uses the 1000ml four-hole boiling flask to make reactor, and stirring arm, N are housed
2Ingress pipe, thermometer, prolong, water trap.
Embodiment 1: add benzylalcohol polyoxypropylene ether (3) (hydroxyl value 205mgKOH/g) 369g, tetradecanoic acid (acid number 245mgKOH/g) 292g, tin protoxide 0.4648g successively, be warming up to 60 ℃ acid is dissolved fully, logical N
2, stir down and be warming up to 200 ℃, and under this temperature, react, distillate the water that reaction generates, react 7h after, anhydrous distillating, be cooled to 70 ℃ filter benzylalcohol polyoxypropylene ether (3) myristinate 635g.
Embodiment 2: add benzylalcohol polyoxypropylene ether (5) (hydroxyl value 145mgKOH/g) 427g, palmitinic acid (acid number 218mgKOH/g) 276g, magnesium oxide 0.5273g successively, be warming up to 75 ℃ acid is dissolved fully, logical N
2, stir down and be warming up to 215 ℃, and under this temperature, react, distillate the water that reaction generates, react 8.5h after, anhydrous distillating, be cooled to 70 ℃ filter benzylalcohol polyoxypropylene ether (5) cetylate 680g.
Claims (5)
1, a kind of synthetic method of benzylalcohol polyoxypropylene ether fatty acid ester is a raw material with benzylalcohol polyoxypropylene ether and lipid acid, it is characterized in that carrying out dehydration condensation under the effect of metal oxide catalyst, makes benzylalcohol polyoxypropylene ether fatty acid ester; Described metal oxide catalyst is ferric oxide or tin protoxide, magnesium oxide, and its add-on is 0.25～1.05% of benzylalcohol polyoxypropylene ether and a lipid acid total weight percent.
2, by the synthetic method of the described benzylalcohol polyoxypropylene ether fatty acid ester of claim 1, the quantity that it is characterized in that alkoxyl group in the described benzylalcohol polyoxypropylene ether is 2～8.
3, by the synthetic method of claim 1 or 2 described benzylalcohol polyoxypropylene ether fatty acid esters, the mol ratio that it is characterized in that described benzylalcohol polyoxypropylene ether and lipid acid is 1: 0.92～1.02.
4, by the synthetic method of the described benzylalcohol polyoxypropylene ether fatty acid ester of claim 1, it is characterized in that described lipid acid is stearic acid or palmitinic acid, tetradecanoic acid.
5, by the synthetic method of the described benzylalcohol polyoxypropylene ether fatty acid ester of claim 1, the temperature that it is characterized in that described dehydration condensation is 160～230 ℃, and the reaction times is 3～8 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101647875A CN101234964B (en) | 2007-12-21 | 2007-12-21 | Method for synthesizing benzylalcohol polyoxypropylene ether fatty acid ester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101647875A CN101234964B (en) | 2007-12-21 | 2007-12-21 | Method for synthesizing benzylalcohol polyoxypropylene ether fatty acid ester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101234964A true CN101234964A (en) | 2008-08-06 |
| CN101234964B CN101234964B (en) | 2010-08-04 |
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| CN2007101647875A Active CN101234964B (en) | 2007-12-21 | 2007-12-21 | Method for synthesizing benzylalcohol polyoxypropylene ether fatty acid ester |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586234A (en) * | 2017-12-29 | 2018-09-28 | 浙江皇马科技股份有限公司 | A kind of preparation method of isooctanol polyoxypropylene ether fatty acid ester |
| CN113736065A (en) * | 2021-08-27 | 2021-12-03 | 湖北新蓝天新材料股份有限公司 | Method for processing allyl glycidyl ether isomer mixture and application |
-
2007
- 2007-12-21 CN CN2007101647875A patent/CN101234964B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108586234A (en) * | 2017-12-29 | 2018-09-28 | 浙江皇马科技股份有限公司 | A kind of preparation method of isooctanol polyoxypropylene ether fatty acid ester |
| CN108586234B (en) * | 2017-12-29 | 2021-01-26 | 浙江皇马科技股份有限公司 | Preparation method of isooctanol polyoxypropylene ether fatty acid ester |
| CN113736065A (en) * | 2021-08-27 | 2021-12-03 | 湖北新蓝天新材料股份有限公司 | Method for processing allyl glycidyl ether isomer mixture and application |
| CN113736065B (en) * | 2021-08-27 | 2023-06-02 | 湖北新蓝天新材料股份有限公司 | Treatment method and application of allyl glycidyl ether isomer mixture |
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| Publication number | Publication date |
|---|---|
| CN101234964B (en) | 2010-08-04 |
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