144342-35-8

Upstream product

• 144342-42-7 (-)-(1R)-2,2,3-Trimethylcyclohex-3-ene-1-ethanol 
• 1686-14-2 (1R,2R,4S,6R)-2,7,7-trimethyl-3-oxatricyclo[4.1.1.0.^2,4]octane 
• 144342-34-7 (-)-(1R)-2,2,3-Trimethylcyclohex-3-ene-1-ethyl acetate 
• 144342-23-4 (+)-(1R)-2,2-Dimethyl-3-methylidenecyclohexane-1-ethyl acetate 
• 23727-15-3 (+)-campholenic aldehyde 
• 52437-39-5 (R)-(+)-2-(2,2,3-trimethyl-cyclopent-3-en-1-yl)ethanol 
• 52486-39-2 (1R)-(-)-2,2,3-trimethylcyclopent-3-ene-1-ethyl acetate 
• 7785-26-4 (-)-α-pinene 
• 144342-21-2 (+)-(1R)-2,2-Dimethyl-3-oxocyclohexane-1-ethyl acetate 
• 144342-28-9 (+)-(1R)-6,6-Dimethyl-5-oxocyclohex-3-ene-1-ethyl acetate 

Relevant academic research and scientific papers

Cyclic alcohols and their use as perfuming ingredients

The invention relates to compounds of formula STR1 having a double bond in one of the positions indicated by the dotted lines. Compounds (I) are useful as perfuming ingredients for the preparation of perfuming compositions and perfuming articles, to which they impart sandalwood-animal notes.

Preparation of Campholenal Analogues: Chirons for the Lipophilic Moiety of Sandalwood-Like Odorant Alcohols

In connection with structure-activity relationship studies, analogues of campholenal ((+)-4b), an important building block for sandalwood-like odorants, were prepared.The five-membered-ring analogues 4 were obtained by epoxidation of the corresponding α-pinene derivatives 2, followed by catalytic ZnBr2 isomerisation (Scheme 2).The six-membered-ring skeleton was obtained by ozonolysis of α-campholenyl acetate ((-)-14b), followed by intramolecular aldol condensation (Scheme 5). 13C-NMR assignments are given.