Abstract The 3-methyl-4-(tricyclo [5.2. 1.0 2, 6] dec-4-en-8-ylidene) butan-2-ols (= Fleursandol®; rac-10), a new class of sandalwood odorants, were synthesized in their enantiomerically pure forms by use of tricyclo [5.2. 1.0 2, 6] dec-4-en-8-ones 17 and ent-17 and (tetrahydro-2H-pyran-2-yl)-protected 4-bromo-3-methylbutan-2-ols 22 and ent-22 as starting materials (Schemes 2–4). Only four of 16 possible stereoisomers of rac-10 ...
