| 摘要 |
This invention relates to campholenic derivatives of general formula (I)
Wherein R1, R2, R3, R4 and R5 represent, each independently, a hydrogen atom or a linear or branched C 1 -C 5 alkyl or C 1 -C 5 alkenyl group, Y represents a CN, a C(O)R 6 or a CR 6 (OR ± ) (OR ² ) group, wherein R 6 represents a hydrogen atom or a linear or branched C 1 -C 5 alkyl or C 1 -C 5 alkenyl group, and R ± and R ² represent simultaneously a linear or branched C 1 , C 2 , C 3 , C 4 or C 5 alkyl or alkenyl group and can form together a cycle, the 5-membered ring is saturated or has a double bond between C3' and C4' in formula (I), and the side chain, optionally, has a double bond between C1 and C2 and/or between C3 and C4, provided that the derivative is not 3-methyl-6-(2,2,3-trimethyl-cyclopent-3-enyl)-hex-4-enal; and their use as fragrant or flavouring agent. |
