The present invention concerns some ester and nitrile derivatives of formula (I) wherein one dotted line represents a carbon-carbon single or double bond and the other dotted lines a carbon-carbon single bond; R1 is a hydrogen atom or a methyl group, R2 is a methyl or ethyl group, R3 is a hydrogen atom or a methyl group, R4 is a hydrogen atom or a methyl group or said R4 taken together with the bond between carbon atom 2 and 3 form a cyclopropane; and X represents a CN or a COOR5 group, R5 representing a C1-5 alkyl group; which are useful perfuming ingredients.
本发明涉及一些酯和腈衍
生物,其
化学式为(I),其中一个点线表示碳-碳单键或双键,另一个点线表示碳-碳单键;R1是氢原子或甲基基团,R2是甲基或乙基基团,R3是氢原子或甲基基团,R4是氢原子或甲基基团,或者R4与碳原子2和3之间的键共同形成
环丙烷;X表示CN或COOR5基团,其中R5表示C1-5烷基基团;这些化合物是有用的
香料成分。