▁can ▁under go ▁ring ▁expansion ▁re actions . ▁Ex amples ▁include ▁the ▁vin yl cyc lo prop ane ▁re arr ang ement ▁and ▁the ▁div in yl cyc lo prop ane - cyc lo he pt ad iene ▁re arr ang ement . ▁This ▁react ivity ▁can ▁be ▁explo ited ▁to ▁generate ▁unusual ▁cy clic ▁comp ounds , ▁such ▁as ▁cy c lob uten es , ▁or ▁b icy clic ▁species ▁such ▁as ▁the ▁cy clo he pt ene ▁shown ▁below . ▁ ▁Saf ety ▁Cy clo prop ane ▁is ▁highly ▁fl amm able . ▁However , ▁despite ▁its ▁stra in ▁energy ▁it ▁is ▁not ▁substantial ly ▁more ▁explos ive ▁than ▁other ▁al kan es . ▁ ▁See ▁also ▁ ▁T etra hed rane ▁contains ▁four ▁f used ▁cy clo prop ane ▁rings ▁that ▁form ▁the ▁faces ▁of ▁a ▁t etra hed ron ▁ ▁Prop ell ane ▁contains ▁three ▁cy clo prop ane ▁rings ▁that ▁share ▁a ▁single ▁central ▁carbon - car bon ▁bond . ▁ ▁Cy clo prop ene ▁ ▁M eth y len ec yc lo prop ane ▁ ▁References ▁ ▁External ▁links ▁ ▁Syn thesis ▁of ▁Cy clo prop anes ▁and ▁related ▁comp ounds ▁Car bon ▁triangle ▁ ▁Category : General ▁an est het ics ▁Category : C yc lo prop anes ▁Category : N MD A ▁re ceptor ▁ant agon ists ▁Category : N ic ot in ic ▁ant agon ists ▁Category : AMP A ▁re ceptor ▁ant agon ists ▁Category : G ases <0x0A> </s> ▁B ant ing