Compound containing pyrazole ring geranyl formate, preparation method and applications thereof

Abstract

The invention discloses a compound containing pyrazole ring geranyl formate, a preparation method and applications thereof. The compound has a constitutional formula shown in formula I, wherein in the formula I, R1 is methyl, n-propyl, isopropyl and phenyl, and R2 is tertiary butyl, phenyl and 4- nitrobenzophenone. The compound is prepared by carrying out condensation reaction on substituted 5-pyrazole formyl chloride and geraniol in the presence of an alkaline compound in the organic solvent. The preparation method has simple operation and low cost. The compound has direct effect for preventing and treating plant louse, can be prepared into a plant louse prevention and treatment agent, and has practical application value in agricultural production.

Description

technical field The invention relates to a class of geranyl compounds containing pyrazole cyclic carboxylate with novel structure, a preparation method thereof and the application of the compounds in preventing and controlling agricultural pests. Background technique In nature, using pheromones to communicate with each other is the way most insects use. In the past 30 years, people have made great progress in the research of insect pheromones. The use of insect pheromones to control pests has the characteristics of high sensitivity, good control effect, convenient use, no pollution to the environment, and no harm to natural enemies. At present, there have been a large number of successful examples at home and abroad. An important part of. Practice has proved that it will occupy an increasingly important position in integrated pest management. Aphid alarm pheromone is a product secreted by aphid itself. It was extracted and identified by Bowers et al. in 1972 from six spec...

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Problems solved by technology

However, the aphid alarm pheromone is unstable under field conditions and is easil

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