It is a hydrocarbon which, as the name suggests, is derived from the addition of a methylene (=CH2) substituent to a cyclopropane ring.

It is a colourless, easily condensed gas that is used as a reagent in organic synthesis.

Being a strained and unsaturated molecule methylenecyclopropane undergoes many reactions, especially in the presence of metal catalysts.

[3] For example, methylenecyclopropanes can be converted to cyclobutenes in the presence of a platinum catalyst.

[4] This can be considered similar to the ring expansion seen in vinylcyclopropane rearrangements Substituted methylenecyclopropanes can also be involved in trimethylenemethane cycloaddition reactions.