title: [Pyranylidene-anthrones (author's transl)].
mesh_terms: D000880:Anthraquinones / Q000138:chemical synthesis*; D009682:Magnetic Resonance Spectroscopy; D011714:Pyrans / Q000138:chemical synthesis; D011753:Pyrones / Q000138:chemical synthesis
chemical_list: D000880:Anthraquinones; D011714:Pyrans; D011753:Pyrones
vernacular_title: Uber Pyranyliden-anthrone