allene

As nouns the difference between allene and allenylamine

is that allene is allene while allenylamine is (organic chemistry) any amine that has an allene group.

In organic chemistry terms the difference between allene and allenol

is that allene is any derivative of such hydrocarbons while allenol is any alcohol containing a hydroxyl group directly attached to an allene.

As nouns the difference between allene and allenyl

is that allene is any of a class of hydrocarbons having two double bonds from one carbon atom to two others - R₂C=C=CR₂; especially the parent compound CH₂=C=CH₂ (propadiene) while allenyl is a univalent radical derived from an allene.