Pyridyl terpenoid ethers have outstanding juvenile hormone activity in Tenebrio molitor compared with their phenyl analogues (6,7-epoxy-3,7-dimethyloct-2-enyl 6-ethyl-3-pyridyl ether and 7-ethoxy-3,7-dimethyloct-2-enyl 6-ethyl-3-pyridyl ether are active at 100 pg/Iarva). The compounds were also active in Galleria melloiiella and Culex pigiens.

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Aus dem 1,1‐Dimethyl‐allylalkohol (I) erhält man mit Tetrachlorkohlenstoff/Benzoylperoxid das Addukt (II), das zu (III) cyclisiert und‐ dann zum Dichlorvinylidemoxiran (IV) dehydrochloriert wird.