Selective Oxidation of 6-Propionylflavonols and 6-Propionyl-2-Hetarylchromdnols Using Hypervalbnt Iodine Reagents in Methanol
作者:Mahavir S Khanna、Km Sangeeta、Chandra P Garg、Ram P Kapoor
DOI:10.1080/00397919208020853
日期:1992.3
Abstract Selective oxidation of 6-propionyl flavonols (1a-d) and 6-propionyl-2-hetarylchromonols (1e-f) to 2,3-dimethoxy-3-hydroxy-6-propionylf lavanones (2a-d) and 2,3-dimethoxy-3-hydroxy-6-propiony1-2-hetarylchromanones (2e-f), respectively, using [bis(trifluoroacetoxy)iodo]benzene(BTFAIB), [hydroxy(tosyloxy)-iodo] benzene (HTIB), iodobenzene diacetate (IBD) and iodosylbenzene (IB) in methanol has
Oxidation of Flavonols Using Lead(IV) Acetate in Acidic Methanol
作者:Devinder Kumar、Om V. Singh
DOI:10.1080/00397919208019315
日期:1992.5
Abstract Oxidation of Flavonols (1a-h) and 6-propionyl-flavonols (1i-j) to 2,3-dimethoxy-3-hydroxyflavanones (2a-h) and 2,3-dimethoxy-3-hydroxyflavanones (2i-j), respectively using lead(IV) acetate in methanol in presence of perchloric acid and the mechanism of this transformation has been described.