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AssigneeKao Corporation
InventorsYoshiaki Fujikura, Tomohito Kitsuki, Manabu Fujita, Nao Toi
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The invention provides derivatives of bornane-3-spiro-1'-cyclopentane with woody note scent useful as a base component in perfumery formulations which comprises those having a substituting group selected from a methoxyl, ethoxyl, formyloxyl and acetoxyl groups or two of substituting groups being either a hydroxyl group and a methyl group or a hydroxyl group and an ethyl group at the 2-position synthesized by any of the reactions of borane-3-spiro-1'-cyclopentan-2--ol or bornane-3-spiro-1'-cyclopentan-2-one with any of the reagents selected in accordance with the substituting group(s) to be introduced. The invention also provides perfumery compositions containing the above.
A derivative of bornane-3-spiro-1'cyclopentane represented by the general formula ##STR10## in which R.sub.1 represents a hydrogen atom or a hydroxyl group and R.sub.2 represents a methoxyl group, an ethoxyl group, a formuloxyl group or an acetoxyl group in the cases in which said R.sub.1 is a hydrogen atom or represents a methyl group or an ethyl group in the cases in which said R.sub.1 is a hydroxyl group.
A perfumery composition comprising a derivative of bornane-3-spiro-1'-cyclopentane represented by the general formula ##STR11## in which R.sub.1 represents a hydrogen atom or a hydroxyl group and R.sub.2 represents a methoxyl group, an ethoxyl group, a formyloxyl group or an acetoxyl group in the cases in which said R.sub.1 is a hydrogen atom or represents a methyl group or an ethyl group in the cases in which said R.sub.1 is a hydroxy group.
Dependencies are inferred from the claim text.