Preparation of Four Geometric Isomers of 4, 6-Hexadecadienol, -dienal, and -dienyl Acetate and Their Electro-Antennographic Activity toward Male Eri-Silk Moths

Abstract

Four geometric isomers of 4, 6-hexadecadienol and the corresponding -dienal and -dienyl acetate isomers were prepared in order to evaluate their pheromone activity toward male eri-silk moths. We used the electroantennography (EAG)-GLC method to determine EAG activity, with results showing that only 4E, 6Z- and 4Z, 6E-hexadecadienal were active, while the other compounds were found to be totally inactive.