| 摘要 |
<p>Novel compounds of formula <IMAGE> wherein each of the symbols R<1>, R<2>, R<3> and R<4> represents a hydrogen atom or a methyl group, and R<5> a linear or branched alkyl radical having 1 to 3 carbon atoms may be prepared by reacting an alicyclic ketone of formula <IMAGE> wherein the symbols R<3>, R<4> and R<5> have the same meaning as given for formula (I) with a compound of formula <IMAGE> wherein the symbols R<1> and R<2> have the same meaning as given for formula (I) and X represents a halogen atom, in the presence of a strong base and an inert organic solvent, and subsequently hydrolyzing the thus obtained reaction product. The compounds of formula I may be used for modifying, enhancing or improving the odoriferous properties of perfumes or perfumed products.</p> |
