What is "cyclopropenone"

n. (context organic compound English) The cyclic ketone having three carbon atoms and one double bond opposite the carbonyl group

Cyclopropenone is an organic compound with molecular formula CHO consisting of a cyclopropene carbon framework with a ketone functional group. It is a colorless gas. The chemical properties of the compound are dominated by the strong polarization of the carbonyl group, which gives a partial positive charge with aromatic stabilization on the ring and a partial negative charge on oxygen.