The invention relates to the chemistry of fragrances and to the field ofperfumery. It relatesmore particularly to compounds with a woody note, responding to the generalformula:(see formula I)in which:- the ring with 6 carbon atoms is saturated or has a double bond betweencarbons C1and C2 or between carbons C1 and C6,- R is selected from a C2-C5 alkyl or C2-C5 alkenyl group.