1,2,3,4-tetra(propan-2-ylidene)cyclobutane

1,2,3,4,5,6-hexa(propan-2-ylidene)cyclohexane

1-isopropenyl-2,3,4,5,6-pentaisopropylidene-cyclohexane

3,4-dibromo-2,5-dimethylhexa-2,4-diene