Methyloxiranone or α-propiolactone is a chemical compound of the lactone family, with a three-membered ring.

It is a stable product which can be obtained from the 2-bromopropionate anion.

[1] It is an intermediate in the decomposition of 2-chloropropionic acid in the gas phase.

This article about a heterocyclic compound is a stub.

You can help Wikipedia by expanding it.