Preparation method of copper 2-ethylhexanoate

A technology of copper ethylhexanoate and copper carbonate is applied in the preparation of carboxylate, the preparation of carboxylate, the preparation of organic compounds, etc., and can solve the problems of complex processing technology, many synthesis steps, low cost of raw materials, etc.

Inactive Publication Date: 2019-05-24
成都蓉橙九天生物科技有限公司
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  • Application Information

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Problems solved by technology

[0003] The purpose of this application is to provide a method for preparing copper 2-ethylhexanoate, using basic copper carbonate and n-octylic acid to directly synthesize copper 2-ethylhexanoate through a one-step reaction, and proposes a new 2-ethylhexanoate The method for synthesizing copper hexanoate has low cost of raw materials, and at the same time effectively improves the problems of many synthesis steps and complicated treatment process of copper 2-ethylhexanoate in the prior art, and can obtain a simple preparation, low cost and high purity Copper 2-ethylhexanoate

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  • Preparation method of copper 2-ethylhexanoate

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[0031] see figure 1 , the embodiment of the present application provides a kind of preparation method of copper 2-ethylhexanoate, comprising: carry out reflux reaction with basic copper carbonate and n-octanoic acid in polar organic solvent, the ratio of the molar ratio of basic copper carbonate and n-octanoic acid Not less than 1 / 4.

[0032] The copper 2-ethylhexanoate introduced in this application refers to copper n-2-ethylhexanoate unless otherwise specified.

[0033] The polar organic solvent used in this application refers to an organic substance that can fully dissolve n-octanoic acid and copper 2-ethylhexanoate generated by the reaction, while ensuring that it can be evaporated and refluxed at the reflux temperature. The type of the polar organic solvent is not specifically limited, it can be a single type of organic matter, such as: aromatic solvents, such as ethanol, benzene, toluene, xylene, etc.; or amides, such as formamide, acetamide . It can also be a mixture...

Embodiment 1

[0054] A preparation method of copper 2-ethylhexanoate, comprising:

[0055] S1. Weigh 50g of basic copper carbonate into a 1L round bottom flask, add 130g of n-octanoic acid, then add 500mL of absolute ethanol, stir to fully dissolve n-octanoic acid in absolute ethanol.

[0056] S2. Place the round-bottom flask in a water bath, install a condenser tube and feed condensed water, control the temperature of the water bath at 80° C., fully reflux for 36 hours, and the reaction solution gradually turns dark green.

[0057] S3. After the reflux reaction, the reaction solution is centrifuged, and the supernatant is taken after centrifugation to obtain the liquid phase components.

[0058] S4, controlling the temperature at 80° C. to evaporate the liquid phase components to dryness for 3 hours, and then controlling the temperature at 55° C. to dry the liquid phase components to obtain copper 2-ethylhexanoate.

Embodiment 2

[0060] A preparation method of copper 2-ethylhexanoate, comprising:

[0061] S1. Weigh 50g of basic copper carbonate into a 1L round bottom flask, add 105g of n-octanoic acid, then add 550mL of absolute ethanol, and stir to fully dissolve n-octanoic acid in absolute ethanol.

[0062] S2. Put the round-bottomed flask in a water bath, install a condenser tube and feed in condensed water, control the temperature of the water bath at 70°C, fully reflux for 39 hours, and the reaction solution gradually turns dark green.

[0063] S3. After the reflux reaction, the reaction solution is centrifuged, and the supernatant is taken after centrifugation to obtain the liquid phase components.

[0064] S4, controlling the temperature at 70° C. to evaporate the liquid phase components to dryness for 4 hours, and then controlling the temperature at 55° C. to dry the liquid phase components to obtain copper 2-ethylhexanoate.

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Abstract

A preparation method of copper 2-ethylhexanoate comprises the following steps: refluxing basic copper carbonate and n-octanoic acid in a polar organic solvent, wherein the molar ratio of the basic copper carbonate to the n-octanoic acid is not less than 1 / 4; and carrying out one-step reaction by using the basic copper carbonate and the n-octanoic acid to directly synthesize the copper 2-ethylhexanoate. The novel synthesis method of the copper 2-ethylhexanoate is provided, the raw material cost is low, the problems of multiple synthesis steps and complex treatment process of the copper 2-ethylhexanoate in the prior art are effectively solved, and the copper 2-ethylhexanoate with simplicity in preparation, low cost and high purity can be obtained.

Description

technical field [0001] The application relates to the field of organic compound synthesis, in particular to a method for preparing copper 2-ethylhexanoate. Background technique [0002] Studies have shown that copper 2-ethylhexanoate (i.e. copper n-octanoate) can be used as a fungicide and bactericide in pesticide sterilization, and it has a better bactericidal effect when used as an active ingredient in pesticides. However, in the prior art, the synthesis method of copper 2-ethylhexanoate is single, and the synthesis steps of copper 2-ethylhexanoate are many, and the treatment process is complex, resulting in complicated production of copper 2-ethylhexanoate and high cost. Contents of the invention [0003] The purpose of this application is to provide a method for preparing copper 2-ethylhexanoate, using basic copper carbonate and n-octylic acid to directly synthesize copper 2-ethylhexanoate through a one-step reaction, and proposes a new 2-ethylhexanoate The method for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C51/41C07C51/353C07C53/126
Inventor 陈明斌方永祥杨述省
Owner 成都蓉橙九天生物科技有限公司
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