Synthesizing method of oriental fruit moth sex pheromone 8(Z/E)-dodecylene-1-alcohol acetate

A technology of pear borer pheromone and dodecene, which is applied in the field of chemical synthesis of insect sex pheromones, can solve the problems of difficult acquisition of raw materials and solvents, easy residue, harsh reaction conditions, etc., and achieve high activity of attracting small borer worms , High product yield and easy access to raw materials
CN101906034AInactive Publication Date: 2010-12-08PHEROBIO TECHNOLOGY CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
PHEROBIO TECHNOLOGY CO LTD
Publication Date
2010-12-08
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to the field of chemical synthesis of inset sex pheromone, in particular to a synthesizing method of oriental fruit moth sex pheromone 8(Z / E)-dodecylene-1-alcohol acetate. The method comprises the following steps of: reacting 8-hydroxy octyl triphenylphosphine salt with strong base to generate corresponding sodium alcoholate salt; continuously reacting the sodium alcoholate salt with the strong base to generate ylide reagent; performing Witting reaction on the ylide reagent with n-butanal under the action of mixed solvent of large-polar solvent and small-polar solvent to obtain the important midbody 8(Z / E)-dodecylene-1-alcohol of inset sex pheromone, and then acetylizing to obtain the 8(Z / E)-dodecylene-1-alcohol acetate. The synthesizing method has easily obtained materials, simple operation, common-use solvent, good selectivity and high activity for inducing inset sex pheromone, and the proportion of Z / E-8-dodecylene-1-alcohol acetate is as high as 95:5. The invention is suitable for large-scale industrial production.
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Description

technical field

[0001] The invention relates to the field of chemical synthesis of insect sex pheromones, in particular, the invention relates to a synthesis method of the sex pheromone 8(Z / E)-dodecen-1-ol acetate of the pear borer moth. Background technique

[0002] Grapholitha molesta is a worldwide fruit tree pest, also known as pear moth, oriental fruit beetle, referred to as pear molesta, which mainly damages pears, apples, peaches, hawthorns, apricots, cherries and other fruit trees. For many years, chemical pesticides have been the main method of controlling pear borer-eating insects, and their drug resistance develops rapidly and causes serious environmental pollution. The sex pheromone of the pear borer has the advantages of high activity, non-toxicity, strong specificity, convenient use, and no harm to natural enemies. It has a good luring effect on the pear borer and is an effective biological control method. The research on pheromones for pest control is attract...

Claims

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