ethyl 2-phenylbicyclo[2.2.1]hepta-2,5-diene-3-carboxylate

5-propan-2-ylcyclopenta-1,3-diene

2-isopropylcyclopentadiene

2,3-bis(trifluoromethyl) bicyclo [2.2.1] heptane

2,3-bis(trifluoromethyl)bicyclo[2.2.1]hepta-2,5-diene