Benzodioxan

The benzodioxans are a group of isomeric chemical compounds with the molecular formula C₈H₈O₂.^[1] There are three isomers of benzodioxan, as the second atom of oxygen of the dioxane can be in a second, third or fourth position: 1,2-dioxane, 1,3-dioxane and 1,4-dioxane, which respectively give 1,2-benzodioxan, 1,3-benzodioxan and 1,4-benzodioxan.^[2][3]

1,4-Benzodioxan

Names
Preferred IUPAC name 2,3-Dihydro-1,4-benzodioxine
Other names Dihydrobenzodioxin; 1,4-Benzodioxane; Benzo-1,4-dioxane; Ethylene o-phenylene dioxide; Pyrocatechol ethylene ether
Identifiers
CAS Number	493-09-4 Y
3D model (JSmol)	Interactive image
ChemSpider	9879
PubChem CID	10301
UNII	ZC5YP57PSW Y
InChI InChI=1S/C8H8O2/c1-2-4-8-7(3-1)9-5-6-10-8/h1-4H,5-6H2 Key: BNBQRQQYDMDJAH-UHFFFAOYSA-N InChI=1/C8H8O2/c1-2-4-8-7(3-1)9-5-6-10-8/h1-4H,5-6H2 Key: BNBQRQQYDMDJAH-UHFFFAOYAF
SMILES c1ccc2c(c1)OCCO2
Properties
Chemical formula	C8H8O2
Molar mass	136.150 g·mol−1
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Derivatives

Some derivatives of 1,4-benzodioxan are used as pharmaceuticals including:^[4][5][6][7]

• 
  Domoxin
• 
  Eltoprazine
• 
  Fluparoxan
• 
  Imiloxan
• 
  Piperoxan
• 
  Proroxan
• 
  Prosympal

See also

• 1,4-Benzodioxine