| abstract |
The invention relates to compounds of the general formulan in which R 1 to R 7 are, independently, H, methyl or ethyl, R 8 +R 9 represent methylene (-CH 2 -) or a single bond, or R 1 +R 2 represent -(CH 2 ) n -, with n being 3 or 4, or R 3 +R 5 or R 5 +R 7 represent methylene or a single bond; and the presence of at least one cyclopropane ring in the molecule is compulsory and the side chain can be saturated or contains one double bond in position α,β or β,γ, na process for the manufacture of these compounds, compounds used to perform the process and the use of these compounds as an odorant or as an ingredient of an odorant composition. |