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Levopimaric acid-stearic acid-pentaerythritol ester synthesis technology

A technology of pentaerythritol ester and L-pimaric acid, which is applied in the synthesis of ester compounds and in the field of organic chemistry, to achieve the effects of less environmental pollution, rich ester-soluble groups, and less toxicity

Inactive Publication Date: 2012-02-08
广东森德利环保新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are few reports on the synthesis of pentaerythritol stearate L-pimarate with the help of microwave technology

Method used

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  • Levopimaric acid-stearic acid-pentaerythritol ester synthesis technology
  • Levopimaric acid-stearic acid-pentaerythritol ester synthesis technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: The synthesis of pentaerythritol stearate of levopimarate is carried out according to the following steps.

[0023] 1. Preparation of L-pimaric acid butanolamine salt by ethyl acetate solvent method: Weigh 400g of pine resin and place it in a 2L beaker, add 800ml of ethyl acetate, heat in a water bath at 55°C, after the rosin is completely dissolved, filter it with a 200-mesh filter cloth while it is hot, To obtain a clear rosin solution, cool to room temperature; weigh 75g of butanolamine and place it in a 250mL beaker, add 25ml of water and 7.5ml of ethyl acetate to dissolve completely, and add the clear rosin solution while stirring rapidly to obtain a white precipitate, cool After reaching room temperature, filter under reduced pressure to obtain the amine salt precipitate and amine salt recrystallization mother liquor; wash the amine salt precipitate with clean ethyl acetate for 3 times, then dry the precipitate, disperse it on a white enamel plate, an...

Embodiment 2

[0026] Example 2: The synthesis of pentaerythritol stearate of levopimarate is carried out according to the following steps.

[0027] 1. Preparation of L-pimaric acid butanolamine salt by ethyl acetate solvent method: Weigh 400g of pine resin and place it in a 2L beaker, add 800ml of ethyl acetate, heat in a water bath at 55°C, after the rosin is completely dissolved, filter it with a 200-mesh filter cloth while it is hot, To obtain a clear rosin solution, cool to room temperature; weigh 75g of butanolamine and place it in a 250mL beaker, add 25ml of water and 7.5ml of ethyl acetate to dissolve completely, and add the clear rosin solution while stirring rapidly to obtain a white precipitate, cool After reaching room temperature, filter under reduced pressure to obtain the amine salt precipitate and amine salt recrystallization mother liquor; wash the amine salt precipitate with clean ethyl acetate for 3 times, then dry the precipitate, disperse it on a white enamel plate, an...

Embodiment 3

[0030] Example 3: The synthesis of pentaerythritol stearate of levopimarate is carried out according to the following steps.

[0031] 1. Preparation of L-pimaric acid butanolamine salt by ethyl acetate solvent method: Weigh 400g of pine resin and place it in a 2L beaker, add 800ml of ethyl acetate, heat in a water bath at 55°C, after the rosin is completely dissolved, filter it with a 200-mesh filter cloth while it is hot, To obtain a clear rosin solution, cool to room temperature; weigh 75g of butanolamine and place it in a 250mL beaker, add 25ml of water and 7.5ml of ethyl acetate to dissolve completely, and add the clear rosin solution while stirring rapidly to obtain a white precipitate, cool After reaching room temperature, filter under reduced pressure to obtain the amine salt precipitate and amine salt recrystallization mother liquor; wash the amine salt precipitate with clean ethyl acetate for 3 times, then dry the precipitate, disperse it on a white enamel plate, an...

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Abstract

The invention discloses a levopimaric acid-stearic acid-pentaerythritol ester synthesis technology, and belongs to an ester compound synthesis technical field of organic chemistry. The levopimaric acid-stearic acid-pentaerythritol ester synthesis technology comprises that levopimaric acid butanol amine salt is prepared by an ethyl acetate solvent method; the prepared levopimaric acid butanol amine salt undergoes a photosensitive oxidation reaction in methylene blue as a photosensitizer and 95% of ethanol; 2-amino-2-methyl-1-propanol salt of levopimaric acid transannular peroxide is prepared; and based on a microwave reactor synthesis technology, the 2-amino-2-methyl-1-propanol salt of levopimaric acid transannular peroxide, stearic acid, pentaerythritol, a surfactant and a catalyst undergo a reaction to produce levopimaric acid-stearic acid-pentaerythritol ester. The levopimaric acid-stearic acid-pentaerythritol ester synthesis technology has the advantages of reasonable processes and simple operation. A product synthesized by the levopimaric acid-stearic acid-pentaerythritol ester synthesis technology is utilized for practical production formula, has excellent performances of lubricity, compatibility, oil resistance, processability, electrical properties and hygienic properties, and has excellent auxiliary addition effects on a calcium-zinc stabilizing agent system.

Description

technical field [0001] The invention relates to a preparation method of a complex ester product, in particular to a synthesis process of pentaerythritol levopimarate stearate, which belongs to the technical field of synthesis of ester compounds in the field of organic chemistry. Background technique [0002] Complex ester products are an important class of compounds, which are widely used in chemical industry, coatings, daily chemicals and so on. For example, pentaerythritol stearate (PETS) has good thermal stability and low volatility at high temperature, has good mold release and fluidity, and has excellent nucleation effect on partially crystalline plastics, and can be used as Plasticizer, plays a peptizing and lubricating role in the plasticizing process of rubber, and can also be used as a processing stabilizer, plasticizer and internal lubricant for polymers such as polyvinyl chloride, as a compounding agent for high-grade lubricating oil, and for metal cutting And lu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C69/757C07C67/08C07C67/26
Inventor 陈肇汉徐军邱丽玲
Owner 广东森德利环保新材料科技有限公司
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