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.
通过一种改进的碱性过氧化氢环氧化金的方法,已经合成了许多新的环氧化金。当延长反应时间时,黄酮醇是主要产物。与碱反应时,环氧化物将环氧乙烷重排为黄酮醇和芳酰基香豆素-3-酮。环氧丁烷也可以通过Darzens缩合反应合成。