| 摘要 |
Mixtures of new dimethyl-tricyclo[5.2.1.02,6]decane derivatives, notably the primary isomers of the common formula A, wherein R1 and R2 mean either methyl group or hydrogen, one of the substituents being a methyl group and the other hydrogen, R3 and R4 mean either methyl group or hydrogen, one of the substituents being a methyl group and the other hydrogen, and X indicates the pi -system of a C-C double bond or an epoxide system, can advantageously be used as new acent- and flavor materials. The compounds of the common formula A, were prepared by hydrogenation of dimeric methylcyclopentadiene selectively in the norbornane part and when desired by epoxidation of the remaining double bond. <IMAGE> A X = pi -system, O
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