title: [Heterocyclic 12-pi and 14-pi systems. 14. Synthesis of thia-pseudophenafulvenes and thia-pentapseudophenafulvalenes].
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D006571:Heterocyclic Compounds
chemical_list: D006571:Heterocyclic Compounds
vernacular_title: Heterocyclische 12-pi und 14-pi-Systeme, 14. Mitt. Synthese von Thia-pseudophenafulvenen und Thia-pentapseudophenafulvalenen.