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。