4,5-dimethyl-1,2,3,6,7,8,8a,8b-octahydrobiphenylene

2-Methyl-endo-7-phenylbicyclo[4.2.0]oct-1-en

2-Methyl-exo-7-phenylbicyclo[4.2.0]oct-1-en

6,6-dibromo-1-methylbicyclo[3.1.0]hexane

1-methylcyclopent-2-en-1-ol