SALICYLIC ACID TRANS-(Β)-FARNESENE ANALOGUES AND USES THEREOF

摘要

The present invention relates to the field of organic compound synthesis. Disclosed are salicylic acid trans-(β)-farnesene analogues, and a preparation method therefor and uses thereof. The compound is obtained by: mixing salicylic acid and analogues thereof, geraniol, geranylamine or substituted geranylamine serving as raw materials with an organic solvent, carrying out a condensation reaction to obtain the salicylic acid trans-(β)-farnesene analogues with different substitutes, and carrying out silica-gel column chromatography separation and purification, so as to obtain the compound represented by formula I. The compound preparation method has mild reaction, simple and easy operations, a high yield and low cost; and the compound is more stable than trans-(β)-farnesene. The compound represented by the formula I has multiple biological activities, a good killing activity to aphids at a high dose, a warning repellant activity to aphids at a low dose, a tobacco mosaic virus resisting activity and a bactericidal activity, can be used for pest control and disease prevention in the agricultural production, and has high application and development value.