methyl 2-[2-(4-methylpent-3-enyl)-1,3-dioxolan-2-yl]acetate

2-(2-bromoethyl)-2-(4-methylpent-3-enyl)-1,3-dioxolane

4-(3-methylbut-2-enyl)benzonitrile

5-methyl-1-thiophen-3-ylhex-4-en-1-one

4-[3-methoxy-4-(3-methylbut-2-enoxy)phenyl]but-3-en-2-one