4-[4-(chloromethyl)-1,3-dioxolan-2-yl]-7-oxabicyclo[4.1.0]heptane

3-(ethoxymethylidene)cyclohexene

2-cyclohex-3-en-1-yl-4-methyl-1,3-dioxolane

1-(3-oxopropyl)cyclohex-3-ene-1-carbaldehyde

4-(diethoxymethyl)cyclohexene