The present invention relates to a synthesis method of (7Z,11Z,13E)-hexadecatrienal as main constituent of citrus leaf-miner sex
pheromone. 7-Bromo-(4Z,6E)-heptadienal and 4-bromo-1-butenol are used as start raw materials, the 4-bromo-1-butenol is coupled with allylmagnesium
bromide to obtain 6-hepten-1-ol and then the 6-hepten-1-ol is brominated and salified with
triphenylphosphine to obtain 1-bromo-(1E,3Z,7Z,13)-tetradecatetraene, and then the 1-bromo-(1E,3Z,7Z,13)-tetradecatetraen is subjected to Kumada
coupling to obtain (1,7Z,11Z,13E)-hexadecatetraene, and then the (1,7Z,11Z,13E)-hexadecatetraene is subjected to
hydroboration-oxidation reaction to obtain (7Z,11Z,13E)-hexadecatrienol, and finally the (7Z,11Z,13E)-hexadecatrienol is oxidized into (7Z,11Z,13E)-hexadecatrienal by
pyridinium chlorochromate. The synthesis method of (7Z,11Z,13E)-hexadecatrienal has advantages of cheap and easily obtained raw materials, simple synthesis path, mild
reaction conditions, high yield, low cost, convenient and
safe operation.