Thermal methods for the synthesis of thiophene, selenophene, and their derivatives. (Review)

The literature data concerned with thermal reactions producing thiophene, selenophene, and their derivatives are systematized and reviewed. The mechanisms of these reactions are examined and conditions for the formation of thiophene and selenophene heterocycles are formulated.Irkutsk Institute of Chemistry, Siberian Branch, Russian Academy of Sciences, Irkutsk 664039, Russia; e-mail: vlad@irioch.ira.ru. Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 1, pp. 3–18, January, 2000.