Nine n-alkyl acyl derivatives of endo-1,7,7-trimethylbicyclo [2.2.1] heptan-2-ol were prepared. The relationship between chemical structure and insecticidal activity against Sitophilus zeamais L. showed a good results with their stereochemical parameter. A possible mechanism for its biological activity was proposed. 合成九種 endo-1, 7, 7-Trimethylbicyclo-[2. 2.1 ] heptan-2-ol 正烴基羥酸衍生物,此九種酯類化合物的對玉米象(Sitophilus zeamais L.)殺蟲作用與其立體化學構造有良好的相關關係。由此結果推論此類衍生物之作用機序。