title: [The effect of acids on dianisyl-pyridyl- and dipyridyl-anisyl-methanoles (author's transl)].
abstract: Different dianisyl-pyridyl- and dipyridyl-anisyl-methanoles react with sulfuric acid, hydrogen iodide or formic acid. Depending on the position of the methoxy groups, pyridine nucleus and acid demethylation or reduction occurs and 10-aryl-pyridol[1,2-alpha]-indole or 9-pyridyl-xanthenole-9, respectively, are formed as main or byproduct. UV-, IR- and 1H-NMR-spectra of the pyridonindoles are discussed.
mesh_terms: D000143:Acids; D000840:Anisoles; D055598:Chemical Phenomena; D002621:Chemistry; D003640:Dealkylation; D005561:Formates; D007211:Indoles / Q000032:analysis / Q000138:chemical synthesis; D009682:Magnetic Resonance Spectroscopy; D000432:Methanol / Q000031:analogs & derivatives*; D010084:Oxidation-Reduction; D011725:Pyridines; D013055:Spectrophotometry, Infrared; D013056:Spectrophotometry, Ultraviolet; D013464:Sulfuric Acids
chemical_list: D000143:Acids; D000840:Anisoles; D005561:Formates; D007211:Indoles; D011725:Pyridines; D013464:Sulfuric Acids; D000432:Methanol
vernacular_title: Die Einwirkung von Säuren auf Dianisyl-pyridyl- und Dipyridyl-anisyl-methanole.