Flavonoid epoxides. Part 16. Synthesis and base-catalysed rearrangement of aurone epoxides
作者:Brian A. Brady、Michael Geoghegan、Kenneth D. McMurtrey、W. Ivo O'Sullivan
DOI:10.1039/p19810000119
日期:——
A number of new aurone epoxides have been synthesised by an improved method of alkaline hydrogen peroxide epoxidation of aurones. Flavonols were the main products when the reaction period was prolonged. Aurone epoxides on reaction with base rearranged to flavonols and to aroylcoumaran-3-ones. Aurone epoxides may also be synthesised by the Darzens condensation.
Brady, Brian A.; Healy, Mary M.; O'Sullivan, W. Ivo, Journal of the Chemical Society. Perkin transactions I, 1983, p. 1151 - 1156
作者:Brady, Brian A.、Healy, Mary M.、O'Sullivan, W. Ivo
DOI:——
日期:——
Kumar, Challo V.; Das, Paritosh K.; O'Sullivan, W. Ivo, Journal of the Chemical Society. Perkin transactions II, 1984, # 11, p. 1745 - 1750
作者:Kumar, Challo V.、Das, Paritosh K.、O'Sullivan, W. Ivo、Ege, Seyhan N.、Griffin, Gary W.
DOI:——
日期:——
BRADY, BRIAN A.;GEOGHEGAN, MICHAEL;OSULLIVAN, W. IVO, J. CHEM. SOC. PERKIN TRANS. PT 1,(1989) N, C. 1557-1562
作者:BRADY, BRIAN A.、GEOGHEGAN, MICHAEL、OSULLIVAN, W. IVO
DOI:——
日期:——
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