Odorants
AssigneeGivaudan Roure (International) SA
InventorsJerzy A. Baigrowicz, Georg Frater
Life of this patent
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Abstract
The invention relates to compounds of the general formula in which R1 to R7 are, independently, H, methyl or ethyl, R8+R9 together form methylene (—CH2—) or a single bond, or R1+R2 together form —(CH2)n—, with n being 3 or 4, or R3+R5 or R5+R7 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, a 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.
Claims5
Compounds of formula 3:
- wherein R1, R2, R4 and R6 are H, methyl or ethyl, or R1+R2 together form —(CH2)n—, with n being 3 or 4.
2-Methyl-4-(1,2,2-trimethylbicyclo[3.1.0] hex-3-yl)but-2-enal.
2-Ethyl-4-(1,2,2-trimethylbicyclo[3.1.0]hex-3-yl)but-2-enal.
3-Methyl-5-(1,2,2-trimethylbicyclo[3.1.0]hex-3-yl)pent-3-en-2-one.
An odorant composition comprising at least one compound of formula 3:
- wherein the radicals R1, R2, R4, and R6 are H, methyl or ethyl, or R1+R2 together form —(CH2)n—, with n being 3 or 4.
Dependencies are inferred from the claim text.