发明授权
US4351772A 6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes 失效
6(9) - 异丙基-9(6) - 甲基-6,9-乙炔-2-氧杂螺[4,5]癸-7-烯

6(9)-Isopropyl-9(6)-methyl-6,9-ethano-2-oxaspiro[4,5]dec-7-enes
摘要:
This invention is directed to terpene derivatives. More particularly, this invention relates to a mixture of isomers of the formula ##STR1## wherein R.sub.1 and R.sub.2, which are different from each other, are each methyl or isopropyl, the preparation thereof, and perfume compositions containing them.
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