[Synthesis of 2-ethyl-3H-naphtho (1.8-bc) thiophen-3-one--a thiapseudophenalen-3-one which is iso-pi-electronic with phenalenone (author's transl)].
D009281:Naphthalenes / Q000138:chemical synthesis; D013876:Thiophenes / Q000138:chemical synthesis*
D009281:Naphthalenes; D013876:Thiophenes
Synthese von 2-Athyl-3-oxo-3H-naphtho-(1.8-bc) thiophen--ein zu Phenalenon iso-pi elektronisches Thia-pseudophenalenon.