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A method for synthesizing the pheromone of the grain storage pest trochaderma

A technology for storing pests and a synthesis method, which is used in devices for capturing or killing insects, organic chemistry, animal husbandry, etc., can solve problems such as hidden dangers, food storage and food safety risks, and increase the spread of Aspergillus, and achieve low synthesis costs. , Avoid the use of toxic solvents, eliminate the effect of side reactions

Active Publication Date: 2018-12-28
天驰药业有限公司
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AI Technical Summary

Problems solved by technology

In addition, Trogoderma increases the spread of Aspergillus during grain storage, which poses great risks and hidden dangers to grain storage and food safety.
[0003] Traditional chemical methods to control pests such as trochaderma will also have certain food safety risks and hidden dangers, so it is necessary to develop more green and environmentally friendly control methods, among which the use of sex pheromones for monitoring and trapping is an efficient and safe green prevention and control method

Method used

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  • A method for synthesizing the pheromone of the grain storage pest trochaderma
  • A method for synthesizing the pheromone of the grain storage pest trochaderma

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Embodiment

[0019] The present invention proposes a method for synthesizing the pheromone of the grain storage pest trochoderma, wherein the structure of the grain storage pest troderma pheromone is The synthesis method of the trochaderma pheromone of the grain storage pest comprises the following steps:

[0020] S1. Synthesis of chiral alcohol esters: under nitrogen protection, in a Shrek tube equipped with a magnetic stirrer, add binaphthol ligand and diethyl zinc in sequence, and stir continuously, and wait until the binaphthol ligand and diethyl zinc After the base zinc is fully exposed to the reaction, cool the reaction system to -20°C to 25°C in an ice-water bath, add methyl propiolate first in order, and then add anhydrous toluene. The temperature of the system is lowered to -25°C~-15°C, and propionaldehyde is added within 3 hours. After the dropwise addition, continue to react for 4~6 hours, and use thin-layer chromatography to detect the reaction progress at any time. After the ...

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Abstract

The invention discloses a synthesis method of grain storage injurious insect trogoderma pheromone. The structure of the grain storage injurious insect trogoderma pheromone is shown in the description;the synthesis method of the grain storage injurious insect trogoderma pheromone takes methyl propiolate and propionaldehyde as starting raw materials, and the raw materials react according to a reasonable ratio to synthesize an important intermediate compound chiral alcohol ester; then catalytic hydrogenation reaction is carried out to synthesize the grain storage injurious insect trogoderma pheromone. The synthesis method provided by the invention has the advantages of simple synthesis route, simple and easy-to-obtain raw materials, low synthesis cost, moderate reaction conditions and simplicity in separation, purification and operation; a target compound with high purity can be directly obtained, and the yield and the optical purity are high; meanwhile, a toxic solvent is not used so that an operation process is safer; a prepared product can be prepared into a lure for monitoring, preventing and controlling storage injurious insects and has commercial application value.

Description

technical field [0001] The invention relates to the technical field of chemical synthesis, in particular to a method for synthesizing the pheromone of the grain storage pest trochaderma. Background technique [0002] Trogoderma glabrum, a grain storage pest, belongs to the order Coleoptera, the genus Trogoderma, and the family Dermestidae. It is a very serious storage pest. Their adult lifespan is very short, they like to feed on pollen and nectar, the main period of harm is in the larval stage (Liu Cong et al., 2012), and they harm a variety of plant and animal products such as corn, wheat, rice, peanuts, nuts, Fur, silk, etc. This genus (non-Chinese species) has been included in the list of imported plant quarantine pests in my country, and strict quarantine should be paid attention to. Pests of the genus Trogoderma have the characteristics of small individuals, miscellaneous feeding habits, extremely harmful, strong resistance to stress and hunger, and relatively secluded...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07D307/33A01M1/02
CPCA01M1/02C07D307/33
Inventor 张瑞琪张力天常慧楚静波那日松李硕宁苏庆丰张海清郑记栓袁国龙李志军崔清海刘航
Owner 天驰药业有限公司
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