Electron transfer photooxygenation of 3,5-cycloheptadienones and related compounds
作者:Wojclech A Wilczak、David I Schuster
DOI:10.1016/s0040-4039(00)85203-x
日期:1986.1
3,5-Cycloheptadienones undergo electron transfer to photoexcited DCA in oxygen-free CH3CN solution to give triplet products which arise via back electron transfer form Initially formed radical ion pairs. Photooxygenation of 2,2,7,7-tetramethyl-3,5-cycloheptadienone () and the derived methyl ether () under electron-transfer conditions results in unusual hydroperoxide-derived products. The related alcohol
3,5-环庚二烯酮在无氧CH 3 CN溶液中经历电子转移至光激发的DCA,从而产生三重态产物,该产物通过反向电子转移形式形成,最初形成的自由基离子对形成。在电子转移条件下对2,2,7,7-四甲基-3,5-环庚二烯酮()和衍生的甲醚()进行光氧合会产生不同寻常的氢过氧化物衍生产物。相关醇()给出的产物强烈暗示二烯自由基阳离子的OH基团在分子内捕获。