abstract |
The invention relates to 2-alkylidene-3,3,5 (3,5,5) -trimethylcyclopentanones of the general formula in the three of the radicals R₁ to R₄ CH₃, one of the radicals R₁ to R₄ H and R₅ is a saturated or unsaturated, straight or branched chain alkyl radical having 1 to 7 carbon atoms and the double bond in the endo or exo position to the cyclopentanone skeleton located. |