5, 6-Epoxybicyclo [2.2.1] heptane-2-methyl 5, 6-epoxybicyclo [2.2.1] heptane-2-carboxylate was synthesized by peracetic acid oxidation of bicyclo[2.2.1]-5-heptene-2-methyl bicyclo[2.2.1]-5-heptene-2-carboxylate which was obtained from bicyclo[2.2.1]-5-heptene-2-aldehyde by Tischtschenko reaction.The 3-methyl-derivative was synthesized by the same approach.These epoxy compounds did not react with reagents which were ordinarily used for the determination of epoxy group, namely hydrogen chloride in pyridine, in dioxane, or in methyl ethyl ketone, and hydrogen bromide in acetic acid.They could be cured slowly by acid anhydride with small amount of glycerol at high temperatures, resulting in low molecular weight substances.