| 摘要 |
The compounds of the formulain which the dotted line indicates the location of a single or double bond; R1 represents a radical derived from an odoriferous alcohol of the formula R1OH; R2 represents a hydrogen atom, a linear or branched, saturated or unsaturated C1-C30 hydrocarbon radical, or an aliphatic or aromatic cyclic compound having 5 or 6 carbon atoms, this radical R2 possibly comprising heteroatoms of oxygen, sulphur or nitrogen; the symbols R3, R4 and R4', considered independently, represent a hydrogen atom, a linear or branched, saturated or unsaturated, if necessary substituted, C1 to C20 hydrocarbon radical possibly comprising one or more heteroatoms, or, when considered together with the carbon atoms to which they are bonded, can form aromatic or aliphatic monocyclic, bicyclic or tricyclic compounds, the radicals R3, R4 and R4' possibly comprising functional groups of the ester and carbamoyl type so as to liberate several molecules of odoriferous alcohol R1OH per single molecule of precursor, are new compounds capable of liberating an odoriferous alcohol of the formula R1OH upon hydrolysis of the ester bond.
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