5,6,6-tetramethyl-1,2,4-trioxanes 4 upon treatment with iron(II) sulfate in aqueous acetonitrile under nitrogen for 12–72H are cleanly isomerised into the corresponding 2,3-dimethylbutan-2,3-diol monoesters 5; it is suggested that the reactions involve reduction to oxyl radicals followed by 1,5-hydrogen transfer, a sequence that has recently been implicated in the molecular mechanism of action of the
在氮气下于
乙腈水溶液中用
硫酸铁(II)处理12-72H后,将五个3-烷基-或3-芳基-5,5,6,6-四甲基-1,2,4-
三恶烷4干净地异构化为相应的
2,3-二甲基丁烷-2,3
-二醇单酯5 ; 提示该反应涉及还原成羟基,然后进行1,5-氢转移,该序列最近与抗疟疾
青蒿素的分子作用机理有关。