Oxetene

Oxetene
Names
	Preferred IUPAC name 2H-Oxete
	Systematic IUPAC name 1-Oxacyclobut-2-ene
Identifiers
CAS Number	287-25-2 [pubchem];
3D model (JSmol)	Interactive image;
Beilstein Reference	4652799
ChEBI	CHEBI:51195 ;
ChemSpider	10143952 ;
PubChem CID	11970569;
CompTox Dashboard (EPA)	DTXSID20474941 ;
	InChI InChI=1S/C3H4O/c1-2-4-3-1/h1-2H,3H2 Key: CRYATLIDHPPXDV-UHFFFAOYSA-N ;
	SMILES O1\C=C/C1;
Properties
Chemical formula	C3H4O
Molar mass	56.06326
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). verify (what is ?) Infobox references

Oxetene is an unsaturated heterocycle. The compound is unstable and has been synthesized. Compared to oxetane, the saturated compound, oxetene is destabilized because the double bond increases the ring strain. Synthesis of some substituted derivatives has been reported.

Oxetene is less studied than oxetane, a related compound that is the base of a number of organic molecules.