9369. Thioxanthone

Nomenclature

CAS number: 492-22-8
Thioxanthen-9-one; thiaxanthone; 9-oxothioxanthene.
C13H8OS; mol wt 212.27.
C 73.56%, H 3.80%, O 7.54%, S 15.11%.

Description and references

Prepd by the interaction of diphenyl sulfide and phosgene with aluminum chloride as catalyst: Szmant et al., J. Org. Chem. 18, 745 (1953).

Chemical structure

Properties

Yellow needles from chloroform, mp 211°. bp715 273°. Freely sol in benzene, chloroform, carbon disulfide, hot glacial acetic acid. Slightly sol in alc. Practically insol in water, alkaline solns. Sol in concd sulfuric acid, giving a yellow soln with strong green fluoresence in visible light.