Phenoxathiin

Phenoxathiin
Names
	Preferred IUPAC name Phenoxathiine
	Other names 1,4-Dibenzothioxine
Identifiers
CAS Number	262-20-4 ;
3D model (JSmol)	Interactive image;
ChemSpider	8862;
ECHA InfoCard	100.005.433
PubChem CID	9217;
UNII	BJC51V8XW8 ;
CompTox Dashboard (EPA)	DTXSID4024937 ;
	InChI InChI=1S/C12H8OS/c1-3-7-11-9(5-1)13-10-6-2-4-8-12(10)14-11/h1-8H Key: GJSGGHOYGKMUPT-UHFFFAOYSA-N;
	SMILES c1ccc2c(c1)Oc3ccccc3S2;
Properties
Chemical formula	C12H8OS
Molar mass	200.26 g·mol−1
Melting point	52–56 °C (126–133 °F; 325–329 K)[1]
Boiling point	150–152 °C (302–306 °F; 423–425 K)[1] (at 5 mmHg)
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Phenoxathiin (dibenzooxathiane) C₁₂H₈OS is a heterocyclic compound of molecular weight 200.25632 g/mol with the CAS Registry Number 262-20-4.[2]

Diphenyl ether is a starting material in the production of phenoxathiin via the Ferrario reaction.[3] Phenoxathiin is used in polyamide and polyimide production.[4]

References

"Phenoxathiin". Sigma-Aldrich.
The Chemistry of Phenoxathiin and its Derivatives. Clara L. Deasy Chem. Rev., 1943, 32 (2), pp 173–194 DOI: 10.1021/cr60102a001 Publication Date: April 1943
Suter, C. M.; Maxwell, C. E. (1943). "Phenoxthin". Organic Syntheses.; Collective Volume, vol. 2, p. 485
Mitsuru Ueoda; Tatsuo Aizawa; Yoshio Imai (1977). "Preparation and properties of polyamides and polyimides containing phenoxathiin units". Journal of Polymer Science: Polymer Chemistry Edition. 15 (11): 2739–2747. doi:10.1002/pol.1977.170151119.

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