Synthesis method of anacardol and butyl ether composition

A technology of cardanol butyl ether and a synthesis method, applied in the field of ether synthesis, can solve problems such as deepening of color and luster, and achieve the effect of eliminating allergens

Inactive Publication Date: 2012-04-11
INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the phenolic hydroxyl group of cardanol is extremely easy to be oxidized into quinone by air, and the color will deepen

Method used

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  • Synthesis method of anacardol and butyl ether composition
  • Synthesis method of anacardol and butyl ether composition
  • Synthesis method of anacardol and butyl ether composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Mix 1 mole of fresh cardanol (Shandong Tengzhou Yalante Biomaterial Co., Ltd.), 1 mole of chlorobutane (Yixing Changjili Chemical Co., Ltd.) and 0.5 mole of potassium carbonate (Chengdu Kelong Chemical Reagent Instrument Factory) ) into a 1000 ml four-neck flask equipped with a nitrogen inlet, a thermometer, a stirrer and a reflux condensing device for mixing and stirring, and the nitrogen outlet was sealed with a funnel upside down in water. The flask was purged of air by bubbling nitrogen gas for 10 minutes. The temperature was raised to 80°C and maintained for 6 hours. Heating in a water bath at 96°C, using a rotary evaporator and a circulating water vacuum pump to distill off the water generated by the reaction under reduced pressure, and using a Buchner funnel to filter out the salt to obtain 340 g of light yellow and transparent cardanol butyl ether, with a yield of 95.5%.

Embodiment 2

[0029] Mix 1 mole of fresh cardanol (Shandong Tengzhou Yalante Biomaterials Co., Ltd.), 1.5 moles of n-chlorobutane (Yixing Changjili Chemical Co., Ltd.) and 1 mole of potassium carbonate (Chengdu Kelong Chemical Reagent Instrument Factory) ) into a 1000 ml four-neck flask equipped with a nitrogen inlet, a thermometer, a stirrer and a reflux condensing device for mixing and stirring, and the nitrogen outlet was sealed with a funnel upside down in water. The flask was purged of air by bubbling nitrogen gas for 10 minutes. The temperature was raised to 120°C and held there for 2 hours. Heated in a water bath at 96°C with a rotary evaporator and a circulating water vacuum pump to distill off excess n-butyl chloride and the water generated by the reaction, and remove the salt by suction filtration with a Buchner funnel to obtain 350 g of light yellow transparent cardanol butyl ether. Yield 98.3%.

Embodiment 3

[0031] Mix 1 mole of fresh cardanol (Shandong Tengzhou Yalante Biomaterials Co., Ltd.), 1.5 moles of n-chlorobutane (Yixing Changjili Chemical Co., Ltd.), 200 ml of dimethylformamide and 1 mole of sodium carbonate ( Tianjin Bodi Chemical Factory) was added into a 1000 ml four-neck flask equipped with a nitrogen inlet, a thermometer, a stirrer and a reflux condensing device for mixing and stirring, and the nitrogen outlet was sealed with a funnel upside down in water. The flask was purged of air by bubbling nitrogen gas for 10 minutes. The temperature was raised to 120°C and held there for 2 hours. Heated in a water bath at 96° C. with a rotary evaporator and a circulating water vacuum pump to distill off excess n-butyl chloride and the water generated by the reaction, and remove the salt by suction filtration with a Buchner funnel to obtain 347 g of light yellow transparent cardanol butyl ether. Yield 97.5%.

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Abstract

The invention discloses a synthesis method of an anacardol and butyl ether composition. The synthesis method comprises the following steps of: allowing anacardol to react with chloro-n-butane in the presence of a base catalyst and in the absence of oxygen; depressurizing and distilling after the reaction; and finally filtering out the generated salt to obtain the anacardol and butyl ether composition product, wherein, the base catalyst is alkali metal carbonate or alkali metal hydroxide. The method for synthesizing the anacardol with butyl ether is simple and has the advantage of higher yield; and meanwhile no water is added and no waste water is generated during the reaction process. As phenolic hydroxyl of the anacardol is replaced by alkoxy, the obtained product has the advantage of better color stability, and meanwhile corrosion of the anacardol on skin is greatly reduced. Therefore, the product can be used for preparing an epoxy hardener with good color stability and can be also utilized as a modifier in coating, an adhesive, rubber, plastics, an elastomer, a composite material and printing ink.

Description

technical field [0001] The invention relates to a synthesis method of ether, in particular to a synthesis method of cardanol butyl ether. Background technique [0002] Cardanol is a natural biophenol with a 15-carbon long carbon chain in the meta-position of a monohydroxyphenol structure. Cardanol is non-toxic and non-corrosive, which is different from petroleum phenol, which is highly corrosive and highly toxic. It is more friendly to the environment and human body. Its structure is as follows: [0003] [0004] where n is 0, 1 or 2. [0005] Cardanol has a wide range of uses and can be used in phenolic resins, epoxy resin curing agents, surfactants and demulsifiers. However, the phenolic hydroxyl group of cardanol is extremely easy to be oxidized into quinone by air, and the color is deepened. British Patent GB2262525 discloses that cardanol is ethoxylated with ethylene oxide to prepare cardanol hydroxyethyl ether, which is used to prepare surfactants. [0006] Chi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C41/01C07C43/215
Inventor 夏建陵黄坤李梅陈瑶杨小华万厉张燕
Owner INST OF CHEM IND OF FOREST PROD CHINESE ACAD OF FORESTRY
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