PREPARATION OF 4 GEOMETRIC ISOMERS OF 4,6-HEXADECADIENOL, 4,6,HEXADECADIENAL, AND 4,6,HEXADECADIENYL ACETATE AND THEIR ELECTRO-ANTENNOGRAPHIC ACTIVITY TOWARD MALE ERI-SILK MOTHS

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