2-{2-[4-Methyl-cyclohex-3-en-(Z)-ylidene]-propyl}-malonic acid diethyl ester
4-[4-Methyl-cyclohex-3-en-(Z)-ylidene]-pentanoic acid ethyl ester
4-methyl-1-(1'-carbethoxy)ethylidene-3-cyclohexene
4-[2-Bromo-1-methyl-eth-(Z)-ylidene]-1-methyl-cyclohexene
(+)-1,4(8)-p-Menthadien-9-ol