title: [Preparations and reactions of benzo (1.2-b:5.4-b')-di-4 pyrones].
mesh_terms: D000085:Acetates; D000588:Amines / Q000138:chemical synthesis; D001565:Benzoates; D001578:Benzopyrans / Q000138:chemical synthesis*; D055598:Chemical Phenomena; D002621:Chemistry; D004121:Dimethyl Sulfoxide; D004952:Esters / Q000138:chemical synthesis; D005029:Ethylenediamines; D009682:Magnetic Resonance Spectroscopy; D008722:Methods; D010655:Phenylenediamines; D011714:Pyrans / Q000138:chemical synthesis; D011748:Pyrogallol; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013440:Sulfides
chemical_list: D000085:Acetates; D000588:Amines; D001565:Benzoates; D001578:Benzopyrans; D004952:Esters; D005029:Ethylenediamines; D010655:Phenylenediamines; D011714:Pyrans; D013440:Sulfides; D011748:Pyrogallol; D004121:Dimethyl Sulfoxide
vernacular_title: Darstellung und Reaktionen von Benzo(1.2-b:5.4-b')-di-4-pyronen