Polycyclic organic compounds, Cyclopropanes, Three-membered rings, Polycyclic nonaromatic hydrocarbons
Cyclic compounds (3)
Spiro compounds (2)
Spiropentane is a hydrocarbon with formula C5H8. It is the simplest spiro-connected cycloalkane, a triangulane. It took several years after the discovery in 1887 until the structure of the molecule was determined.According to the nomenclature rules for spiro compounds, the systematic name is spiro[2.2]pentane.
Cuneane (C8H8, Pentacyclo[18.104.22.168 2,4.03,7.06,8]octane) is a saturated hydrocarbon. Its name is derived from the Latin cuneus, meaning a wedge. Cuneane may be produced from cubane by metal-ion-catalyzed σ-bond rearrangement.