Methyloxiranone

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.^[2]

α-Propiolactone

Names
IUPAC name 3-Methyloxiran-2-one
Other names α-Propiolactone 2-Methyl-α-lactone
Identifiers
CAS Number	50403-36-6
3D model (JSmol)	Interactive image
ChemSpider	74180244
PubChem CID	15857753
CompTox Dashboard (EPA)	DTXSID301336180
InChI InChI=1S/C3H4O2/c1-2-3(4)5-2/h2H,1H3 Key: YCHXNMPJFFEIJG-UHFFFAOYSA-N
SMILES CC1C(=O)O1
Properties
Chemical formula	C3H4O2
Molar mass	72.06 g mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

See also

• β-Propiolactone
• Acetolactone

References

1. The Chemical Thesaurus, (2R)-2-Methyl alpha-lactone data page. Accessed on 2009-10-07.
2. Vicent S. Safont, Vicente Moliner, Juan Andrés, Luís R. Domingo (1997), Theoretical Study of the Elimination Kinetics of Carboxylic Acid Derivatives in the Gas Phase. Decomposition of 2-Chloropropionic Acid. J. Physical Chemistry series A, volume 101, issue 10, pp. 1859–1865. doi:10.1021/jp962533t