(<i>E</i>)-6-Methoxy-3-(α-methoxybenzylidene)benzo[<i>b</i>]furan-2(3<i>H</i>)-one at 173 K
作者:Anthony J. Burke、Helmut W. Schmalle、Bernard A. Brady、W. Ivo O'Sullivan
DOI:10.1107/s0108270100000731
日期:2000.4.15
Flavonoid epoxides. Part 20. Some unusual reactions of dimethyldioxirane (DMD) with flavonoid compounds
作者:Anthony J. Burke、W. Ivo O'Sullivan
DOI:10.1016/s0040-4020(97)00506-1
日期:1997.6
either the 2′-hydroxychalcone epoxide or the trans-2,3-dihydroflavonol could be obtained depending on the pH of the reaction mixture and the type of β-arene ring present in the substrate. Using this methodology trans-2,3-dihydroflavonols can be synthesised in far better yields than by the most commonly used method for their synthesis, that of the Algar-Flynn-Oyamada reaction. Treatment of both flavonol