The present invention relates to certain ester and nitrile derivatives of formula (I):
wherein one dotted line represents a carbon-carbon single or double bond and the other dotted lines each represent a carbon-carbon single bond;
R
1
is a hydrogen atom or a methyl group, R
2
is a methyl or ethyl group, R
3
is a hydrogen atom or a methyl group, R
4
is a hydrogen atom or a methyl group or said R
4
taken together with the bond between carbon atom 2 and 3 form a cyclopropane; and
X represents a CN or a COOR
5
group, R
5
representing a C
1-5
alkyl group; with the compound being in the form of any one of its pure stereoisomers or mixtures thereof. These compounds are useful perfuming ingredients.
本发明涉及公式(I)的某些酯和腈衍
生物:其中一个虚线代表碳-碳单键或双键,另一个虚线各代表碳-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,或者所述的R4与碳原子2和3之间的键共同形成
环丙烷;X代表CN或COOR5基团,其中R5代表C1-5烷基基团;所述化合物以其纯的立体异构体或其混合物的形式是有用的
香料成分。