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US 10,570,080 B2Granted
Perfume ketones
AssigneeGivaudan SA
InventorsPhilip Kraft, Roger Emter, Felix Flachsmann, Samuel Jordi, Andreas Natsch
Life of this patent
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Abstract
A compound of the formula (I) in which, independently, R1 is selected from H and methyl; R2 is selected from H, and methyl; R3 is selected from H, methyl and ethyl; R4 is selected from H, methyl and ethyl; or R3 and R4 together form a ring in which n is 1 or 2. The compounds have the characteristic desirable odour qualities of the Damascone® molecules, but lack their disadvantageous skin sensitization effects.
Claims17
A compound of the formula (I)
- in which, independently,
- R1 is selected from H, and methyl;
- R2 is selected from H, and methyl;
- R3 is selected from H, methyl and ethyl;
- R4 is selected from H, methyl and ethyl;
- or R3 and R4 together form a ring in which n is 1 or 2.
3 more elements
(2E,1′R*,2′S*)-2-methyl-1-(2′,6′,6′-trimethylcyclohex-3′-en-1′-yl)but-2-en-1-one.
Dependencies are inferred from the claim text.