Isobenzofuran

Isobenzofuran is a bicyclic heterocycle consisting of fused cyclohexa-1,3-diene and furan rings. It is isomeric with benzofuran.

Isobenzofuran

Skeletal formula
Ball-and-stick model
Names
Preferred IUPAC name 2-Benzofuran[1]
Other names 2-Oxa-2H-isoindene; Benzo[c]furan
Identifiers
CAS Number	270-75-7 Y
3D model (JSmol)	Interactive image
ChEBI	CHEBI:35261 Y
ChemSpider	9553388 Y
PubChem CID	11378474
UNII	9T5PJS6W2B Y
CompTox Dashboard (EPA)	DTXSID00943009
InChI InChI=1S/C8H6O/c1-2-4-8-6-9-5-7(8)3-1/h1-6H Y Key: UXGVMFHEKMGWMA-UHFFFAOYSA-N Y InChI=1/C8H6O/c1-2-4-8-6-9-5-7(8)3-1/h1-6H Key: UXGVMFHEKMGWMA-UHFFFAOYAR
SMILES o2cc1ccccc1c2
Properties
Chemical formula	C8H6O
Molar mass	118.13 g/mol
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Y verify (what is YN ?) Infobox references

Isobenzofuran is highly reactive and rapidly polymerizes; however, it has been identified^[2] and prepared by thermolysis of suitable precursors and trapped at low temperature.^[3]

Though isobenzofuran itself is not stable, it is the parent of related stable compounds with more complex structures,^[4] such as the hindered analogue 1,3-diphenylisobenzofuran.