title: Novel oxidative dimer from caffeic acid.
abstract: The novel Diels-Alder adduct, dicaffeoyl quinone as its hydrate, was formed from the oxidation of 3,4-dihydroxycinnamic acid (caffeic acid) with NaIO4. The structure of this hydrate was determined by spectroscopic methods.
authors.affiliation: Department of Bioresource Science, Obihiro University of Agriculture and Veterinary Medicine, Inada-cho, Obihiro 080-8555, Japan. tazaki@obihiro.ac.jp
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Tazaki
authors.forename: Jun
authors.initials: J
authors.lastname: Kawabata
authors.forename: Takashi
authors.initials: T
authors.lastname: Fujita
mesh_terms: D002109:Caffeic Acids / Q000737:chemistry* / Q000302:isolation & purification; D007202:Indicators and Reagents; D007452:Iodates; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D010084:Oxidation-Reduction
chemical_list: D002109:Caffeic Acids; D007202:Indicators and Reagents; D007452:Iodates; C040048:caffeic acid; C032285:sodium iodate