Green synthesis method of oxine-copper technical material

Abstract

The invention discloses a green synthesis method of oxine-copper technical material The preparation method comprises the following steps: reacting 8-hydroxyquinoline with copper salt in water under the catalysis of dilute sulfuric acid to obtain oxine-copper containing crystal water, wherein the copper salt is basic cupric carbonate or copper hydroxide. According to the invention, basic cupric carbonate or copper hydroxide is used as a copper source, a catalytic amount of sulfuric acid is used as a catalyst, water is used as a solvent, and a complexing reaction is carried out to obtain the oxine-copper technical material. The technological process of the synthesis method is more environmentally friendly, a reaction solvent is water, reaction byproducts are carbon dioxide and water, and a large amount of inorganic waste salt is not generated; the reaction process is mild, the reaction conversion rate is high, and the reaction process is fast; wherein the prepared product is a green quinoline copper raw drug containing crystal water.

Description

technical field [0001] The invention relates to a green synthesis method of quinoline copper raw drug, which belongs to the technical field of organic synthesis. Background technique [0002] Copper quinoline is a chemical substance, yellow to green powder, non-volatile, non-deliquescent, black at high temperature, insoluble in water and most solvents. Copper quinoline can be used as a pharmaceutical synthetic metal corrosion inhibitor; it is used as a fungicide in agriculture; it is also used as a fungicide for ropes, threads, leather, and vinyl plastics; it is used as a fungicide in agriculture to prevent and control bacterial horns in cucumbers Spot disease, mango bacterial angular spot, citrus canker, apple tree ring spot, etc. [0003] The existing production method is to use 8-hydroxyquinoline and copper sulfate, copper chloride, copper acetate, etc. as raw materials for chelation reaction to obtain copper quinoline. After the reaction, hydrogen equivalent to 8-hydrox...

AI Technical Summary

Problems solved by technology

[0003] The existing production method is to use 8-hydroxyquinoline and copper sulfate, copper chloride, copper acetate, etc. as raw materials for chelation reaction to obtain copper quinoline. After the reaction, hydrogen equivalent to 8-hydroxyquinoline is needed Sodium oxide neutralizes the acid produced in the reaction process, adjusts the pH to weak acidity, and the reaction produces a large amount of inorganic waste salt or organic waste salt by-products, resulting in increased difficulty in sewage treatment and environmental pollution problems; the traditional process uses sodium hydroxide When the local hydroxide concentration is too high, it is easy to form copper hydroxide precipitation with copper ions, resulting in a decrease in the purity of the product; the reaction conditions of the conventional process are severe, and the obtained product does not contain crystal water, and this type of product is processed into a suspending agent When the stability is poor, it is easy to produce unstable results such as particle size growth and layered precipitation.