Chemistry of Heterocyclic Compounds p. 1301 - 1306 (1986)
Update date:2022-08-05
Topics:
Voronkov, M. G.
Deryagina, E. N.
Papernaya, L. K.
Sukhomazova, E. N.
Korchevin, N. A.
Efremova, G. G.
At 500-600 deg C, di(2-thienyl)sulfide is converted to thiophene, thiophene thiols, dithienyls, and dithienothiophenes, and isomerized to 2,3-dithienylsulfide.Hydrogen sulfide accelerates these reactions significantly.In the liquid phase the thermal conversion of di(2-thienyl)sulfide takes place only with the participation of elemental sulfur or in the system sulfur-hydrogen sulfide.Thiophene and diethienothiophenes are not formed in this case, while isomerization occurs to a large degree.The observed thermal conversions of di(2-thienyl)sulfide are based on the addition of thiyl radicals to the double bonds of the thiophene ring and to the sulfide sulfur atom.
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