1-chloro-2,3-dimethylbut-2-ene

3-chloro-2,3-dimethyl-1-butene

1,2,3,4-tetrachloro-2-chloromethyl-3-methyl-butane

1,4-dichloro-2,3-bis(chloromethyl)but-2-ene

1,4-Dichlor-2,3-dimethyl-2-buten