US 12,492,356 B2
Oxa-sandalwood-type fragrance compounds
Vijayanand Chandrasekaran, Holzminden (DE); and Bernd Hölscher, Halle (DE)
Assigned to SYMRISE AG, Holzminden (DE)
Appl. No. 17/913,961
Filed by SYMRISE AG, Holzminden (DE)
PCT Filed Apr. 20, 2020, PCT No. PCT/EP2020/061029
§ 371(c)(1), (2) Date Sep. 23, 2022,
PCT Pub. No. WO2021/213627, PCT Pub. Date Oct. 28, 2021.
Prior Publication US 2023/0126581 A1, Apr. 27, 2023
Int. Cl. C11B 9/00 (2006.01); C07C 41/01 (2006.01); C07C 43/178 (2006.01); C07C 47/198 (2006.01); C07C 47/277 (2006.01)
CPC C11B 9/003 (2013.01) [C07C 41/01 (2013.01); C07C 43/1781 (2013.01); C07C 47/198 (2013.01); C07C 47/277 (2013.01); C11B 9/0049 (2013.01); C07C 2601/08 (2017.05); C07C 2601/10 (2017.05); C07C 2602/18 (2017.05)] 16 Claims
 
1. A compound of general formula (I):

OG Complex Work Unit Chemistry
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.