Oxa-sandalwood-type fragrance compounds
AssigneeSymrise AG
InventorsVijayanand Chandrasekaran, Bernd Hölscher
Life of this patent
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Abstract
The present invention relates to novel fragrance compounds of general formula (I) which exhibit a Sandalwood-like fragrance and which are derivable from campholenic aldehyde derivates according to general formula (II). Furthermore, the present invention discloses compositions comprising one or more of the inventive fragrance compounds. The invention also relates to the use of such compounds or fragrance compositions comprising one or more of the compounds according to the invention as an odorant or or improving the fixation of a fragrance compound or a fragrance composition. Furthermore, the present invention refers to the use of such compounds or compositions for the preparation of a perfumed products as well as perfumed products as such.
Claims16
A compound of general formula (I):
- wherein
- R represents an ether group,
- R1 represents a hydrogen atom or an alkyl group,
- R2 represents a hydrogen atom or an alkyl group, and
- X represents a CH2 group or C═CH2 group;
- wherein the chain marked as C1 to C4 is either saturated or is unsaturated and contains one double bond either between C2 and C3 or between C3 and C4;
- wherein at the position of the dotted lines in the chain between C2 and C3 there is either a noncyclic C—C single bond between C2 and C3, a C═C double bond between C2 and C3 or a cyclopropane ring encompassing C2 and C3;
- and
- wherein at the position of the other dotted lines between C3′ and C4′ in the 5-C ring there is either a C—C single bond between C3′ and C4′, a C═C double bond between C3′ and C4′ or a cyclopropane ring encompassing C3′ and C4′;
- or
- a stereoisomer thereof;
- or
- a mixture of any of the above compounds or a mixture of any of the above stereoisomers.
A compound according to general formula (II):
- wherein
- R represents an ether group, and
- X represents a CH2 group or C═CH2 group;
- and
- wherein at the position of the dotted lines between C3′ and C4′ in the 5-C ring there is either a C—C single bond between C3′ and C4′ or a cyclopropane ring encompassing C3′ and C4′;
- or
- a stereoisomer thereof;
- or
- a mixture of any of the above compounds or a mixture of any of the above stereoisomers.
A fragrance composition comprising:
- at least one compound according to general formula (I):
- wherein
- R represents an ether group,
- R1 represents a hydrogen atom or an alkyl group,
- R2 represents a hydrogen atom or an alkyl group, and
- X represents a CH2 group or C═CH2 group;
- wherein the chain marked as C1 to C4 is either saturated or is unsaturated and contains one double bond either between C2 and C3 or between C3 and C4,
- wherein at the position of the dotted lines in the chain between C2 and C3 there is either a noncyclic C—C single bond between C2 and C3, a C═C double bond between C2 and C3 or a cyclopropane ring encompassing C2 and C3, and
- wherein at the position of the other dotted lines between C3′ and C4′ in the 5-C ring there is either a C—C single bond between C3′ and C4′, a C═C double bond between C3′ and C4′ or a cyclopropane ring encompassing C3′ and C4′;
- or
- at least one compound according to general formula (II):
- wherein
- R represents an ether group, and
- X represents a CH2 group or C═CH2 group, and
- wherein at the position of the dotted lines between C3′ and C4′ in the 5-C ring there is either a C—C single bond between C3′ and C4′, or a cyclopropane ring encompassing C3′ and C4′;
- or
- a stereoisomer of the compound according to general formula (I), or a stereoisomer of the compound according to general formula (II), or a mixture of any of the above compounds, or a mixture of any of the above stereoisomers;
- and
- at least one further fragrance substance.
Dependencies are inferred from the claim text.